commit d70d1c4aa6b9b2f4713d79f442dbf66a3f702c9b
author Dmitry V. Levin <ldv@altlinux.org> Sun Mar 22 22:13:55 2015 +0000
committer Dmitry V. Levin <ldv@altlinux.org> Mon Mar 23 22:24:59 2015 +0000
tree d8d318c5bb99c1e731951dd7035b427d11dd7eec
parent 1b7860776791fdd0fb429661c9cec434213eb81e

syscall.c: split arch specific code into separate arch files

Split code that use arch-specific registers to separate arch files.

* syscall.c: Move definitions of variables containing fetched registers
to linux/*/arch_regs.c files.
[HAVE_GETRVAL2] (getrval2): Move arch-specific code
to linux/*/arch_getrval2.c, include "arch_getrval2.c".
(print_pc): Move arch-specific code to linux/*/print_pc.c files,
include "print_pc.c".
[X86_64] (x86_64_getregs_old): Rename to getregs_old, move to
linux/x86_64/getregs_old.c, include "getregs_old.c".
[POWERPC] (powerpc_getregs_old): Rename to getregs_old, move to
linux/powerpc/getregs_old.c, include "getregs_old.c".
(get_regs) [X86_64, POWERPC]: Update callers.
(get_scno): Move arch-specific code to linux/*/get_scno.c,
include "get_scno.c".
(get_syscall_args): Move arch-specific code
to linux/*/get_syscall_args.c, include "get_syscall_args.c".
(get_error): Move arch-specific code to linux/*/get_error.c,
include "get_error.c".
(get_syscall_result): Move arch-specific code
to linux/*/get_syscall_result.c, include "get_syscall_result.c".
* Makefile.am (EXTRA_DIST): Add new linux/*/*.c files.

Makefile.am

diff --git a/Makefile.am b/Makefile.am
index 48fe1d7..27b6a12 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -164,77 +164,161 @@
 	linux/32/syscallent.h		\
 	linux/64/ioctls_inc.h		\
 	linux/64/syscallent.h		\
+	linux/aarch64/arch_regs.c	\
 	linux/aarch64/arch_regs.h	\
 	linux/aarch64/errnoent1.h	\
+	linux/aarch64/get_error.c	\
+	linux/aarch64/get_scno.c	\
+	linux/aarch64/get_syscall_args.c\
 	linux/aarch64/ioctls_arch0.h	\
 	linux/aarch64/ioctls_arch1.h	\
 	linux/aarch64/ioctls_inc0.h	\
 	linux/aarch64/ioctls_inc1.h	\
+	linux/aarch64/print_pc.c	\
 	linux/aarch64/signalent1.h	\
 	linux/aarch64/syscallent.h	\
 	linux/aarch64/syscallent1.h	\
+	linux/alpha/arch_getrval2.c	\
+	linux/alpha/arch_regs.c		\
 	linux/alpha/arch_regs.h		\
 	linux/alpha/errnoent.h		\
+	linux/alpha/get_error.c		\
+	linux/alpha/get_scno.c		\
+	linux/alpha/get_syscall_args.c	\
+	linux/alpha/get_syscall_result.c\
 	linux/alpha/ioctls_arch0.h	\
 	linux/alpha/ioctls_inc0.h	\
+	linux/alpha/print_pc.c		\
 	linux/alpha/signalent.h		\
 	linux/alpha/syscallent.h	\
 	linux/alpha/userent.h		\
+	linux/arc/arch_regs.c		\
+	linux/arc/get_error.c		\
+	linux/arc/get_scno.c		\
+	linux/arc/get_syscall_args.c	\
 	linux/arc/ioctls_arch0.h	\
 	linux/arc/ioctls_inc0.h		\
+	linux/arc/print_pc.c		\
 	linux/arc/syscallent.h		\
 	linux/arch_regs.h		\
+	linux/arm/arch_regs.c		\
 	linux/arm/arch_regs.h		\
+	linux/arm/get_error.c		\
+	linux/arm/get_scno.c		\
+	linux/arm/get_syscall_args.c	\
 	linux/arm/ioctls_arch0.h	\
 	linux/arm/ioctls_inc0.h		\
+	linux/arm/print_pc.c		\
 	linux/arm/syscallent.h		\
 	linux/arm/userent.h		\
+	linux/avr32/arch_regs.c		\
+	linux/avr32/get_error.c		\
+	linux/avr32/get_scno.c		\
+	linux/avr32/get_syscall_args.c	\
 	linux/avr32/ioctls_arch0.h	\
 	linux/avr32/ioctls_inc0.h	\
+	linux/avr32/print_pc.c		\
 	linux/avr32/syscallent.h	\
 	linux/avr32/userent.h		\
+	linux/bfin/arch_regs.c		\
+	linux/bfin/get_error.c		\
+	linux/bfin/get_scno.c		\
+	linux/bfin/get_syscall_args.c	\
+	linux/bfin/get_syscall_result.c	\
 	linux/bfin/ioctls_arch0.h	\
 	linux/bfin/ioctls_inc0.h	\
+	linux/bfin/print_pc.c		\
 	linux/bfin/syscallent.h		\
 	linux/bfin/userent.h		\
+	linux/crisv10/arch_regs.c	\
+	linux/crisv10/get_error.c	\
+	linux/crisv10/get_scno.c	\
+	linux/crisv10/get_syscall_args.c	\
+	linux/crisv10/get_syscall_result.c	\
+	linux/crisv10/print_pc.c	\
 	linux/crisv10/userent.h		\
+	linux/crisv32/arch_regs.c	\
+	linux/crisv32/get_error.c	\
+	linux/crisv32/get_scno.c	\
+	linux/crisv32/get_syscall_args.c	\
+	linux/crisv32/get_syscall_result.c	\
+	linux/crisv32/print_pc.c	\
 	linux/crisv32/userent.h		\
 	linux/dummy.h			\
 	linux/errnoent.h		\
+	linux/hppa/arch_regs.c		\
 	linux/hppa/arch_regs.h		\
 	linux/hppa/errnoent.h		\
+	linux/hppa/get_error.c		\
+	linux/hppa/get_scno.c		\
+	linux/hppa/get_syscall_args.c	\
+	linux/hppa/get_syscall_result.c	\
 	linux/hppa/ioctls_arch0.h	\
 	linux/hppa/ioctls_inc0.h	\
+	linux/hppa/print_pc.c		\
 	linux/hppa/signalent.h		\
 	linux/hppa/syscallent.h		\
+	linux/i386/arch_regs.c		\
 	linux/i386/arch_regs.h		\
+	linux/i386/get_error.c		\
+	linux/i386/get_scno.c		\
+	linux/i386/get_syscall_args.c	\
 	linux/i386/ioctls_arch0.h	\
 	linux/i386/ioctls_inc0.h	\
+	linux/i386/print_pc.c		\
 	linux/i386/syscallent.h		\
 	linux/i386/userent.h		\
 	linux/i386/userent0.h		\
+	linux/ia64/arch_getrval2.c	\
+	linux/ia64/arch_regs.c		\
 	linux/ia64/arch_regs.h		\
+	linux/ia64/get_error.c		\
+	linux/ia64/get_scno.c		\
+	linux/ia64/get_syscall_args.c	\
 	linux/ia64/ioctls_arch0.h	\
 	linux/ia64/ioctls_inc0.h	\
+	linux/ia64/print_pc.c		\
 	linux/ia64/syscallent.h		\
 	linux/ia64/userent.h		\
 	linux/inet_diag.h		\
+	linux/m68k/arch_regs.c		\
+	linux/m68k/get_error.c		\
+	linux/m68k/get_scno.c		\
+	linux/m68k/get_syscall_args.c	\
+	linux/m68k/get_syscall_result.c	\
 	linux/m68k/ioctls_arch0.h	\
 	linux/m68k/ioctls_inc0.h	\
+	linux/m68k/print_pc.c		\
 	linux/m68k/syscallent.h		\
 	linux/m68k/userent.h		\
+	linux/metag/arch_regs.c		\
+	linux/metag/get_error.c		\
+	linux/metag/get_scno.c		\
+	linux/metag/get_syscall_args.c	\
 	linux/metag/ioctls_arch0.h	\
 	linux/metag/ioctls_inc0.h	\
+	linux/metag/print_pc.c		\
 	linux/metag/syscallent.h	\
+	linux/microblaze/arch_regs.c	\
+	linux/microblaze/get_error.c	\
+	linux/microblaze/get_scno.c	\
+	linux/microblaze/get_syscall_args.c	\
+	linux/microblaze/get_syscall_result.c	\
 	linux/microblaze/ioctls_arch0.h	\
 	linux/microblaze/ioctls_inc0.h	\
+	linux/microblaze/print_pc.c	\
 	linux/microblaze/syscallent.h	\
 	linux/microblaze/userent.h	\
+	linux/mips/arch_regs.c		\
 	linux/mips/arch_regs.h		\
 	linux/mips/errnoent.h		\
 	linux/mips/genstub.sh		\
+	linux/mips/get_error.c		\
+	linux/mips/get_scno.c		\
+	linux/mips/get_syscall_args.c	\
 	linux/mips/ioctls_arch0.h	\
 	linux/mips/ioctls_inc0.h	\
+	linux/mips/print_pc.c		\
 	linux/mips/signalent.h		\
 	linux/mips/syscallent-compat.h	\
 	linux/mips/syscallent-n32.h	\
@@ -243,77 +327,129 @@
 	linux/mips/syscallent.h		\
 	linux/mips/userent.h		\
 	linux/mtd-abi.h			\
+	linux/or1k/arch_regs.c		\
+	linux/or1k/get_error.c		\
+	linux/or1k/get_scno.c		\
+	linux/or1k/get_syscall_args.c	\
 	linux/or1k/ioctls_arch0.h	\
 	linux/or1k/ioctls_inc0.h	\
+	linux/or1k/print_pc.c		\
 	linux/or1k/syscallent.h		\
 	linux/or1k/userent.h		\
 	linux/personality.h		\
+	linux/powerpc/arch_regs.c	\
 	linux/powerpc/arch_regs.h	\
 	linux/powerpc/errnoent.h	\
+	linux/powerpc/get_error.c	\
+	linux/powerpc/get_scno.c	\
+	linux/powerpc/get_syscall_args.c	\
+	linux/powerpc/getregs_old.c	\
 	linux/powerpc/ioctls_arch0.h	\
 	linux/powerpc/ioctls_inc0.h	\
+	linux/powerpc/print_pc.c	\
 	linux/powerpc/syscallent.h	\
 	linux/powerpc/userent.h		\
+	linux/powerpc64/arch_regs.c	\
 	linux/powerpc64/arch_regs.h	\
 	linux/powerpc64/errnoent.h	\
 	linux/powerpc64/errnoent1.h	\
+	linux/powerpc64/get_error.c	\
+	linux/powerpc64/get_scno.c	\
+	linux/powerpc64/get_syscall_args.c	\
+	linux/powerpc64/getregs_old.c	\
 	linux/powerpc64/ioctls_arch0.h	\
 	linux/powerpc64/ioctls_arch1.h	\
 	linux/powerpc64/ioctls_inc0.h	\
 	linux/powerpc64/ioctls_inc1.h	\
+	linux/powerpc64/print_pc.c	\
 	linux/powerpc64/signalent1.h	\
 	linux/powerpc64/syscallent.h	\
 	linux/powerpc64/syscallent1.h	\
 	linux/powerpc64/userent.h	\
 	linux/ptp_clock.h		\
+	linux/s390/arch_regs.c		\
 	linux/s390/arch_regs.h		\
+	linux/s390/get_error.c		\
+	linux/s390/get_scno.c		\
+	linux/s390/get_syscall_args.c	\
 	linux/s390/ioctls_arch0.h	\
 	linux/s390/ioctls_inc0.h	\
+	linux/s390/print_pc.c		\
 	linux/s390/syscallent.h		\
 	linux/s390/userent.h		\
 	linux/s390/userent0.h		\
 	linux/s390/userent1.h		\
+	linux/s390x/arch_regs.c		\
 	linux/s390x/arch_regs.h		\
+	linux/s390x/get_error.c		\
+	linux/s390x/get_scno.c		\
+	linux/s390x/get_syscall_args.c	\
 	linux/s390x/ioctls_arch0.h	\
 	linux/s390x/ioctls_inc0.h	\
+	linux/s390x/print_pc.c		\
 	linux/s390x/syscallent.h	\
 	linux/s390x/userent.h		\
+	linux/sh/arch_getrval2.c	\
+	linux/sh/arch_regs.c		\
+	linux/sh/get_error.c		\
+	linux/sh/get_scno.c		\
+	linux/sh/get_syscall_args.c	\
+	linux/sh/get_syscall_result.c	\
 	linux/sh/ioctls_arch0.h		\
 	linux/sh/ioctls_inc0.h		\
+	linux/sh/print_pc.c		\
 	linux/sh/syscallent.h		\
 	linux/sh/userent.h		\
 	linux/sh/userent0.h		\
+	linux/sh64/arch_regs.c		\
 	linux/sh64/arch_regs.h		\
+	linux/sh64/get_error.c		\
+	linux/sh64/get_scno.c		\
+	linux/sh64/get_syscall_args.c	\
+	linux/sh64/get_syscall_result.c	\
 	linux/sh64/ioctls_arch0.h	\
 	linux/sh64/ioctls_inc0.h	\
+	linux/sh64/print_pc.c		\
 	linux/sh64/syscallent.h		\
 	linux/sh64/userent.h		\
 	linux/signalent.h		\
 	linux/sock_diag.h		\
+	linux/sparc/arch_getrval2.c	\
+	linux/sparc/arch_regs.c		\
 	linux/sparc/arch_regs.h		\
 	linux/sparc/dummy2.h		\
 	linux/sparc/errnoent.h		\
 	linux/sparc/errnoent1.h		\
 	linux/sparc/gen.pl		\
+	linux/sparc/get_error.c		\
+	linux/sparc/get_scno.c		\
+	linux/sparc/get_syscall_args.c	\
 	linux/sparc/ioctlent1.h		\
 	linux/sparc/ioctls_arch0.h	\
 	linux/sparc/ioctls_inc0.h	\
+	linux/sparc/print_pc.c		\
 	linux/sparc/signalent.h		\
 	linux/sparc/signalent1.h	\
 	linux/sparc/syscall1.h		\
 	linux/sparc/syscallent.h	\
 	linux/sparc/syscallent1.h	\
 	linux/sparc/userent.h		\
+	linux/sparc64/arch_getrval2.c	\
+	linux/sparc64/arch_regs.c	\
 	linux/sparc64/arch_regs.h	\
 	linux/sparc64/dummy2.h		\
 	linux/sparc64/errnoent.h	\
 	linux/sparc64/errnoent1.h	\
 	linux/sparc64/errnoent2.h	\
+	linux/sparc64/get_error.c	\
+	linux/sparc64/get_scno.c	\
+	linux/sparc64/get_syscall_args.c\
 	linux/sparc64/ioctlent1.h	\
 	linux/sparc64/ioctls_arch0.h	\
 	linux/sparc64/ioctls_arch2.h	\
 	linux/sparc64/ioctls_inc0.h	\
 	linux/sparc64/ioctls_inc2.h	\
+	linux/sparc64/print_pc.c	\
 	linux/sparc64/signalent.h	\
 	linux/sparc64/signalent1.h	\
 	linux/sparc64/signalent2.h	\
@@ -324,12 +460,17 @@
 	linux/sparc64/userent.h		\
 	linux/subcall.h			\
 	linux/syscall.h			\
+	linux/tile/arch_regs.c		\
 	linux/tile/arch_regs.h		\
 	linux/tile/errnoent1.h		\
+	linux/tile/get_error.c		\
+	linux/tile/get_scno.c		\
+	linux/tile/get_syscall_args.c	\
 	linux/tile/ioctls_arch0.h	\
 	linux/tile/ioctls_arch1.h	\
 	linux/tile/ioctls_inc0.h	\
 	linux/tile/ioctls_inc1.h	\
+	linux/tile/print_pc.c		\
 	linux/tile/signalent1.h		\
 	linux/tile/syscallent.h		\
 	linux/tile/syscallent1.h	\
@@ -338,34 +479,51 @@
 	linux/unix_diag.h		\
 	linux/userent.h			\
 	linux/userent0.h		\
+	linux/x32/arch_regs.c		\
 	linux/x32/arch_regs.h		\
 	linux/x32/errnoent1.h		\
+	linux/x32/get_error.c		\
+	linux/x32/get_scno.c		\
+	linux/x32/get_syscall_args.c	\
 	linux/x32/ioctls_arch0.h	\
 	linux/x32/ioctls_arch1.h	\
 	linux/x32/ioctls_inc0.h		\
 	linux/x32/ioctls_inc1.h		\
+	linux/x32/print_pc.c		\
 	linux/x32/signalent1.h		\
 	linux/x32/syscallent.h		\
 	linux/x32/syscallent1.h		\
 	linux/x32/userent.h		\
+	linux/x86_64/arch_regs.c	\
 	linux/x86_64/arch_regs.h	\
 	linux/x86_64/errnoent1.h	\
 	linux/x86_64/errnoent2.h	\
 	linux/x86_64/gentab.pl		\
+	linux/x86_64/get_error.c	\
+	linux/x86_64/get_scno.c		\
+	linux/x86_64/get_syscall_args.c	\
+	linux/x86_64/getregs_old.c	\
 	linux/x86_64/ioctls_arch0.h	\
 	linux/x86_64/ioctls_arch1.h	\
 	linux/x86_64/ioctls_arch2.h	\
 	linux/x86_64/ioctls_inc0.h	\
 	linux/x86_64/ioctls_inc1.h	\
 	linux/x86_64/ioctls_inc2.h	\
+	linux/x86_64/print_pc.c		\
 	linux/x86_64/signalent1.h	\
 	linux/x86_64/signalent2.h	\
 	linux/x86_64/syscallent.h	\
 	linux/x86_64/syscallent1.h	\
 	linux/x86_64/syscallent2.h	\
 	linux/x86_64/userent.h		\
+	linux/xtensa/arch_regs.c	\
+	linux/xtensa/get_error.c	\
+	linux/xtensa/get_scno.c		\
+	linux/xtensa/get_syscall_args.c	\
+	linux/xtensa/get_syscall_result.c	\
 	linux/xtensa/ioctls_arch0.h	\
 	linux/xtensa/ioctls_inc0.h	\
+	linux/xtensa/print_pc.c		\
 	linux/xtensa/syscallent.h	\
 	linux/xtensa/userent.h		\
 	maint/ioctls_gen.sh		\

linux/aarch64/arch_regs.c

diff --git a/linux/aarch64/arch_regs.c b/linux/aarch64/arch_regs.c
new file mode 100644
index 0000000..3b9c2f6
--- /dev/null
+++ b/linux/aarch64/arch_regs.c
@@ -0,0 +1,37 @@
+struct arm_pt_regs {
+        int uregs[18];
+};
+#define ARM_cpsr       uregs[16]
+#define ARM_pc         uregs[15]
+#define ARM_lr         uregs[14]
+#define ARM_sp         uregs[13]
+#define ARM_ip         uregs[12]
+#define ARM_fp         uregs[11]
+#define ARM_r10        uregs[10]
+#define ARM_r9         uregs[9]
+#define ARM_r8         uregs[8]
+#define ARM_r7         uregs[7]
+#define ARM_r6         uregs[6]
+#define ARM_r5         uregs[5]
+#define ARM_r4         uregs[4]
+#define ARM_r3         uregs[3]
+#define ARM_r2         uregs[2]
+#define ARM_r1         uregs[1]
+#define ARM_r0         uregs[0]
+#define ARM_ORIG_r0    uregs[17]
+
+static union {
+	struct user_pt_regs aarch64_r;
+	struct arm_pt_regs  arm_r;
+} arm_regs_union;
+#define aarch64_regs arm_regs_union.aarch64_r
+#define arm_regs     arm_regs_union.arm_r
+
+uint64_t *const aarch64_sp_ptr = (uint64_t *) &aarch64_regs.sp;
+uint32_t *const arm_sp_ptr = (uint32_t *) &arm_regs.ARM_sp;
+static struct iovec aarch64_io = {
+	.iov_base = &arm_regs_union
+};
+
+#define ARCH_REGS_FOR_GETREGSET arm_regs_union
+#define ARCH_IOVEC_FOR_GETREGSET aarch64_io

linux/aarch64/get_error.c

diff --git a/linux/aarch64/get_error.c b/linux/aarch64/get_error.c
new file mode 100644
index 0000000..7dd6779
--- /dev/null
+++ b/linux/aarch64/get_error.c
@@ -0,0 +1,10 @@
+if (tcp->currpers == 1) {
+	if (check_errno && is_negated_errno(aarch64_regs.regs[0])) {
+		tcp->u_rval = -1;
+		tcp->u_error = -aarch64_regs.regs[0];
+	} else {
+		tcp->u_rval = aarch64_regs.regs[0];
+	}
+} else {
+#include "arm/get_error.c"
+}

linux/aarch64/get_scno.c

diff --git a/linux/aarch64/get_scno.c b/linux/aarch64/get_scno.c
new file mode 100644
index 0000000..610b38d
--- /dev/null
+++ b/linux/aarch64/get_scno.c
@@ -0,0 +1,14 @@
+switch (aarch64_io.iov_len) {
+	case sizeof(aarch64_regs):
+		/* We are in 64-bit mode */
+		scno = aarch64_regs.regs[8];
+		update_personality(tcp, 1);
+		break;
+	case sizeof(arm_regs):
+		/* We are in 32-bit mode */
+		/* Note: we don't support OABI, unlike 32-bit ARM build */
+		scno = arm_regs.ARM_r7;
+		scno = shuffle_scno(scno);
+		update_personality(tcp, 0);
+		break;
+}

linux/aarch64/get_syscall_args.c

diff --git a/linux/aarch64/get_syscall_args.c b/linux/aarch64/get_syscall_args.c
new file mode 100644
index 0000000..41ce8b4
--- /dev/null
+++ b/linux/aarch64/get_syscall_args.c
@@ -0,0 +1,10 @@
+if (tcp->currpers == 1) {
+	tcp->u_arg[0] = aarch64_regs.regs[0];
+	tcp->u_arg[1] = aarch64_regs.regs[1];
+	tcp->u_arg[2] = aarch64_regs.regs[2];
+	tcp->u_arg[3] = aarch64_regs.regs[3];
+	tcp->u_arg[4] = aarch64_regs.regs[4];
+	tcp->u_arg[5] = aarch64_regs.regs[5];
+} else {
+#include "arm/get_syscall_args.c"
+}

linux/aarch64/print_pc.c

diff --git a/linux/aarch64/print_pc.c b/linux/aarch64/print_pc.c
new file mode 100644
index 0000000..23c0e5c
--- /dev/null
+++ b/linux/aarch64/print_pc.c
@@ -0,0 +1,4 @@
+if (aarch64_io.iov_len == sizeof(arm_regs))
+	tprintf(fmt, (unsigned long) arm_regs.ARM_pc);
+else
+	tprintf(fmt, (unsigned long) aarch64_regs.pc);

linux/alpha/arch_getrval2.c

diff --git a/linux/alpha/arch_getrval2.c b/linux/alpha/arch_getrval2.c
new file mode 100644
index 0000000..90ee392
--- /dev/null
+++ b/linux/alpha/arch_getrval2.c
@@ -0,0 +1,8 @@
+long
+getrval2(struct tcb *tcp)
+{
+	long r20;
+	if (upeek(tcp->pid, 20, &r20) < 0)
+		return -1;
+	return r20;
+}

linux/alpha/arch_regs.c

diff --git a/linux/alpha/arch_regs.c b/linux/alpha/arch_regs.c
new file mode 100644
index 0000000..e2783ca
--- /dev/null
+++ b/linux/alpha/arch_regs.c
@@ -0,0 +1,2 @@
+static long alpha_r0;
+static long alpha_a3;

linux/alpha/get_error.c

diff --git a/linux/alpha/get_error.c b/linux/alpha/get_error.c
new file mode 100644
index 0000000..5b615a5
--- /dev/null
+++ b/linux/alpha/get_error.c
@@ -0,0 +1,6 @@
+if (check_errno && alpha_a3) {
+	tcp->u_rval = -1;
+	tcp->u_error = alpha_r0;
+} else {
+	tcp->u_rval = alpha_r0;
+}

linux/alpha/get_scno.c

diff --git a/linux/alpha/get_scno.c b/linux/alpha/get_scno.c
new file mode 100644
index 0000000..4959e15
--- /dev/null
+++ b/linux/alpha/get_scno.c
@@ -0,0 +1,16 @@
+if (upeek(tcp->pid, REG_A3, &alpha_a3) < 0)
+	return -1;
+if (upeek(tcp->pid, REG_R0, &scno) < 0)
+	return -1;
+
+/*
+ * Do some sanity checks to figure out if it's
+ * really a syscall entry
+ */
+if (!SCNO_IN_RANGE(scno)) {
+	if (alpha_a3 == 0 || alpha_a3 == -1) {
+		if (debug_flag)
+			fprintf(stderr, "stray syscall exit: r0 = %ld\n", scno);
+		return 0;
+	}
+}

linux/alpha/get_syscall_args.c

diff --git a/linux/alpha/get_syscall_args.c b/linux/alpha/get_syscall_args.c
new file mode 100644
index 0000000..7f7d493
--- /dev/null
+++ b/linux/alpha/get_syscall_args.c
@@ -0,0 +1,5 @@
+unsigned int i;
+
+for (i = 0; i < tcp->s_ent->nargs; ++i)
+	if (upeek(tcp->pid, REG_A0+i, &tcp->u_arg[i]) < 0)
+		return -1;

linux/alpha/get_syscall_result.c

diff --git a/linux/alpha/get_syscall_result.c b/linux/alpha/get_syscall_result.c
new file mode 100644
index 0000000..11e2736
--- /dev/null
+++ b/linux/alpha/get_syscall_result.c
@@ -0,0 +1,4 @@
+if (upeek(tcp->pid, REG_A3, &alpha_a3) < 0)
+	return -1;
+if (upeek(tcp->pid, REG_R0, &alpha_r0) < 0)
+	return -1;

linux/alpha/print_pc.c

diff --git a/linux/alpha/print_pc.c b/linux/alpha/print_pc.c
new file mode 100644
index 0000000..c0232e5
--- /dev/null
+++ b/linux/alpha/print_pc.c
@@ -0,0 +1,6 @@
+long pc;
+if (upeek(tcp->pid, REG_PC, &pc) < 0) {
+	PRINTBADPC;
+	return;
+}
+tprintf(fmt, pc);

linux/arc/arch_regs.c

diff --git a/linux/arc/arch_regs.c b/linux/arc/arch_regs.c
new file mode 100644
index 0000000..0d57ae4
--- /dev/null
+++ b/linux/arc/arch_regs.c
@@ -0,0 +1,2 @@
+static struct user_regs_struct arc_regs;
+#define ARCH_REGS_FOR_GETREGSET arc_regs

linux/arc/get_error.c

diff --git a/linux/arc/get_error.c b/linux/arc/get_error.c
new file mode 100644
index 0000000..1741c17
--- /dev/null
+++ b/linux/arc/get_error.c
@@ -0,0 +1,6 @@
+if (check_errno && is_negated_errno(arc_regs.scratch.r0)) {
+	tcp->u_rval = -1;
+	tcp->u_error = -arc_regs.scratch.r0;
+} else {
+	tcp->u_rval = arc_regs.scratch.r0;
+}

linux/arc/get_scno.c

diff --git a/linux/arc/get_scno.c b/linux/arc/get_scno.c
new file mode 100644
index 0000000..cc45d46
--- /dev/null
+++ b/linux/arc/get_scno.c
@@ -0,0 +1 @@
+scno = arc_regs.scratch.r8;

linux/arc/get_syscall_args.c

diff --git a/linux/arc/get_syscall_args.c b/linux/arc/get_syscall_args.c
new file mode 100644
index 0000000..bb003c8
--- /dev/null
+++ b/linux/arc/get_syscall_args.c
@@ -0,0 +1,5 @@
+long *arc_args = &arc_regs.scratch.r0;
+unsigned int i;
+
+for (i = 0; i < MAX_ARGS; ++i)
+	tcp->u_arg[i] = *arc_args--;

linux/arc/print_pc.c

diff --git a/linux/arc/print_pc.c b/linux/arc/print_pc.c
new file mode 100644
index 0000000..f904544
--- /dev/null
+++ b/linux/arc/print_pc.c
@@ -0,0 +1 @@
+tprintf(fmt, arc_regs.efa);

linux/arm/arch_regs.c

diff --git a/linux/arm/arch_regs.c b/linux/arm/arch_regs.c
new file mode 100644
index 0000000..ca1fb6d
--- /dev/null
+++ b/linux/arm/arch_regs.c
@@ -0,0 +1,4 @@
+static struct pt_regs arm_regs;
+long *const arm_sp_ptr = &arm_regs.ARM_sp;
+
+#define ARCH_REGS_FOR_GETREGS arm_regs

linux/arm/get_error.c

diff --git a/linux/arm/get_error.c b/linux/arm/get_error.c
new file mode 100644
index 0000000..d2ae09b
--- /dev/null
+++ b/linux/arm/get_error.c
@@ -0,0 +1,6 @@
+if (check_errno && is_negated_errno(arm_regs.ARM_r0)) {
+	tcp->u_rval = -1;
+	tcp->u_error = -arm_regs.ARM_r0;
+} else {
+	tcp->u_rval = arm_regs.ARM_r0;
+}

linux/arm/get_scno.c

diff --git a/linux/arm/get_scno.c b/linux/arm/get_scno.c
new file mode 100644
index 0000000..6122d39
--- /dev/null
+++ b/linux/arm/get_scno.c
@@ -0,0 +1,41 @@
+if (arm_regs.ARM_ip != 0) {
+	/* It is not a syscall entry */
+	fprintf(stderr, "pid %d stray syscall exit\n", tcp->pid);
+	tcp->flags |= TCB_INSYSCALL;
+	return 0;
+}
+
+/* Note: we support only 32-bit CPUs, not 26-bit */
+
+#if !defined(__ARM_EABI__) || ENABLE_ARM_OABI
+if (arm_regs.ARM_cpsr & 0x20) {
+	/* Thumb mode */
+	goto scno_in_r7;
+}
+/* ARM mode */
+/* Check EABI/OABI by examining SVC insn's low 24 bits */
+errno = 0;
+scno = ptrace(PTRACE_PEEKTEXT, tcp->pid, (void *)(arm_regs.ARM_pc - 4), NULL);
+if (errno)
+	return -1;
+/* EABI syscall convention? */
+if ((unsigned long) scno != 0xef000000) {
+	/* No, it's OABI */
+	if ((scno & 0x0ff00000) != 0x0f900000) {
+		fprintf(stderr, "pid %d unknown syscall trap 0x%08lx\n",
+			tcp->pid, scno);
+		return -1;
+	}
+	/* Fixup the syscall number */
+	scno &= 0x000fffff;
+} else {
+scno_in_r7:
+	scno = arm_regs.ARM_r7;
+}
+#else /* __ARM_EABI__ || !ENABLE_ARM_OABI */
+
+scno = arm_regs.ARM_r7;
+
+#endif
+
+scno = shuffle_scno(scno);

linux/arm/get_syscall_args.c

diff --git a/linux/arm/get_syscall_args.c b/linux/arm/get_syscall_args.c
new file mode 100644
index 0000000..1bd4faf
--- /dev/null
+++ b/linux/arm/get_syscall_args.c
@@ -0,0 +1,6 @@
+tcp->u_arg[0] = arm_regs.uregs[0];
+tcp->u_arg[1] = arm_regs.uregs[1];
+tcp->u_arg[2] = arm_regs.uregs[2];
+tcp->u_arg[3] = arm_regs.uregs[3];
+tcp->u_arg[4] = arm_regs.uregs[4];
+tcp->u_arg[5] = arm_regs.uregs[5];

linux/arm/print_pc.c

diff --git a/linux/arm/print_pc.c b/linux/arm/print_pc.c
new file mode 100644
index 0000000..b9d9622
--- /dev/null
+++ b/linux/arm/print_pc.c
@@ -0,0 +1 @@
+tprintf(fmt, arm_regs.ARM_pc);

linux/avr32/arch_regs.c

diff --git a/linux/avr32/arch_regs.c b/linux/avr32/arch_regs.c
new file mode 100644
index 0000000..aab0338
--- /dev/null
+++ b/linux/avr32/arch_regs.c
@@ -0,0 +1,2 @@
+static struct pt_regs avr32_regs;
+#define ARCH_REGS_FOR_GETREGS avr32_regs

linux/avr32/get_error.c

diff --git a/linux/avr32/get_error.c b/linux/avr32/get_error.c
new file mode 100644
index 0000000..ef44584
--- /dev/null
+++ b/linux/avr32/get_error.c
@@ -0,0 +1,6 @@
+if (check_errno && is_negated_errno(avr32_regs.r12)) {
+	tcp->u_rval = -1;
+	tcp->u_error = -avr32_regs.r12;
+} else {
+	tcp->u_rval = avr32_regs.r12;
+}

linux/avr32/get_scno.c

diff --git a/linux/avr32/get_scno.c b/linux/avr32/get_scno.c
new file mode 100644
index 0000000..0142329
--- /dev/null
+++ b/linux/avr32/get_scno.c
@@ -0,0 +1 @@
+scno = avr32_regs.r8;

linux/avr32/get_syscall_args.c

diff --git a/linux/avr32/get_syscall_args.c b/linux/avr32/get_syscall_args.c
new file mode 100644
index 0000000..2e3cd3b
--- /dev/null
+++ b/linux/avr32/get_syscall_args.c
@@ -0,0 +1,6 @@
+tcp->u_arg[0] = avr32_regs.r12;
+tcp->u_arg[1] = avr32_regs.r11;
+tcp->u_arg[2] = avr32_regs.r10;
+tcp->u_arg[3] = avr32_regs.r9;
+tcp->u_arg[4] = avr32_regs.r5;
+tcp->u_arg[5] = avr32_regs.r3;

linux/avr32/print_pc.c

diff --git a/linux/avr32/print_pc.c b/linux/avr32/print_pc.c
new file mode 100644
index 0000000..ca293e6
--- /dev/null
+++ b/linux/avr32/print_pc.c
@@ -0,0 +1 @@
+tprintf(fmt, avr32_regs.pc);

linux/bfin/arch_regs.c

diff --git a/linux/bfin/arch_regs.c b/linux/bfin/arch_regs.c
new file mode 100644
index 0000000..f6f4204
--- /dev/null
+++ b/linux/bfin/arch_regs.c
@@ -0,0 +1 @@
+static long bfin_r0;

linux/bfin/get_error.c

diff --git a/linux/bfin/get_error.c b/linux/bfin/get_error.c
new file mode 100644
index 0000000..d7ff247
--- /dev/null
+++ b/linux/bfin/get_error.c
@@ -0,0 +1,6 @@
+if (check_errno && is_negated_errno(bfin_r0)) {
+	tcp->u_rval = -1;
+	tcp->u_error = -bfin_r0;
+} else {
+	tcp->u_rval = bfin_r0;
+}

linux/bfin/get_scno.c

diff --git a/linux/bfin/get_scno.c b/linux/bfin/get_scno.c
new file mode 100644
index 0000000..dfdb0a7
--- /dev/null
+++ b/linux/bfin/get_scno.c
@@ -0,0 +1,2 @@
+if (upeek(tcp->pid, PT_ORIG_P0, &scno))
+	return -1;

linux/bfin/get_syscall_args.c

diff --git a/linux/bfin/get_syscall_args.c b/linux/bfin/get_syscall_args.c
new file mode 100644
index 0000000..ac6e6cd
--- /dev/null
+++ b/linux/bfin/get_syscall_args.c
@@ -0,0 +1,6 @@
+static const int argreg[MAX_ARGS] = { PT_R0, PT_R1, PT_R2, PT_R3, PT_R4, PT_R5 };
+unsigned int i;
+
+for (i = 0; i < tcp->s_ent->nargs; ++i)
+	if (upeek(tcp->pid, argreg[i], &tcp->u_arg[i]) < 0)
+		return -1;

linux/bfin/get_syscall_result.c

diff --git a/linux/bfin/get_syscall_result.c b/linux/bfin/get_syscall_result.c
new file mode 100644
index 0000000..c9d94d4
--- /dev/null
+++ b/linux/bfin/get_syscall_result.c
@@ -0,0 +1,2 @@
+if (upeek(tcp->pid, PT_R0, &bfin_r0) < 0)
+	return -1;

linux/bfin/print_pc.c

diff --git a/linux/bfin/print_pc.c b/linux/bfin/print_pc.c
new file mode 100644
index 0000000..b1eef14
--- /dev/null
+++ b/linux/bfin/print_pc.c
@@ -0,0 +1,6 @@
+long pc;
+if (upeek(tcp->pid, PT_PC, &pc) < 0) {
+	PRINTBADPC;
+	return;
+}
+tprintf(fmt, pc);

linux/crisv10/arch_regs.c

diff --git a/linux/crisv10/arch_regs.c b/linux/crisv10/arch_regs.c
new file mode 100644
index 0000000..573f593
--- /dev/null
+++ b/linux/crisv10/arch_regs.c
@@ -0,0 +1 @@
+static long cris_r10;

linux/crisv10/get_error.c

diff --git a/linux/crisv10/get_error.c b/linux/crisv10/get_error.c
new file mode 100644
index 0000000..3f947ae
--- /dev/null
+++ b/linux/crisv10/get_error.c
@@ -0,0 +1,6 @@
+if (check_errno && is_negated_errno(cris_r10)) {
+	tcp->u_rval = -1;
+	tcp->u_error = -cris_r10;
+} else {
+	tcp->u_rval = cris_r10;
+}

linux/crisv10/get_scno.c

diff --git a/linux/crisv10/get_scno.c b/linux/crisv10/get_scno.c
new file mode 100644
index 0000000..5bbbe8b
--- /dev/null
+++ b/linux/crisv10/get_scno.c
@@ -0,0 +1,2 @@
+if (upeek(tcp->pid, 4*PT_R9, &scno) < 0)
+	return -1;

linux/crisv10/get_syscall_args.c

diff --git a/linux/crisv10/get_syscall_args.c b/linux/crisv10/get_syscall_args.c
new file mode 100644
index 0000000..66b5ac7
--- /dev/null
+++ b/linux/crisv10/get_syscall_args.c
@@ -0,0 +1,9 @@
+static const int crisregs[MAX_ARGS] = {
+	4*PT_ORIG_R10, 4*PT_R11, 4*PT_R12,
+	4*PT_R13     , 4*PT_MOF, 4*PT_SRP
+};
+unsigned int i;
+
+for (i = 0; i < tcp->s_ent->nargs; ++i)
+	if (upeek(tcp->pid, crisregs[i], &tcp->u_arg[i]) < 0)
+		return -1;

linux/crisv10/get_syscall_result.c

diff --git a/linux/crisv10/get_syscall_result.c b/linux/crisv10/get_syscall_result.c
new file mode 100644
index 0000000..53b087a
--- /dev/null
+++ b/linux/crisv10/get_syscall_result.c
@@ -0,0 +1,2 @@
+if (upeek(tcp->pid, 4*PT_R10, &cris_r10) < 0)
+	return -1;

linux/crisv10/print_pc.c

diff --git a/linux/crisv10/print_pc.c b/linux/crisv10/print_pc.c
new file mode 100644
index 0000000..cc76216
--- /dev/null
+++ b/linux/crisv10/print_pc.c
@@ -0,0 +1,6 @@
+long pc;
+if (upeek(tcp->pid, 4*PT_IRP, &pc) < 0) {
+	PRINTBADPC;
+	return;
+}
+tprintf(fmt, pc);

linux/crisv32/arch_regs.c

diff --git a/linux/crisv32/arch_regs.c b/linux/crisv32/arch_regs.c
new file mode 100644
index 0000000..a088e17
--- /dev/null
+++ b/linux/crisv32/arch_regs.c
@@ -0,0 +1 @@
+#include "crisv10/arch_regs.c"

linux/crisv32/get_error.c

diff --git a/linux/crisv32/get_error.c b/linux/crisv32/get_error.c
new file mode 100644
index 0000000..f7bb1e0
--- /dev/null
+++ b/linux/crisv32/get_error.c
@@ -0,0 +1 @@
+#include "crisv10/get_error.c"

linux/crisv32/get_scno.c

diff --git a/linux/crisv32/get_scno.c b/linux/crisv32/get_scno.c
new file mode 100644
index 0000000..edfd60f
--- /dev/null
+++ b/linux/crisv32/get_scno.c
@@ -0,0 +1 @@
+#include "crisv10/get_scno.c"

linux/crisv32/get_syscall_args.c

diff --git a/linux/crisv32/get_syscall_args.c b/linux/crisv32/get_syscall_args.c
new file mode 100644
index 0000000..4d98465
--- /dev/null
+++ b/linux/crisv32/get_syscall_args.c
@@ -0,0 +1 @@
+#include "crisv10/get_syscall_args.c"

linux/crisv32/get_syscall_result.c

diff --git a/linux/crisv32/get_syscall_result.c b/linux/crisv32/get_syscall_result.c
new file mode 100644
index 0000000..ebefdb2
--- /dev/null
+++ b/linux/crisv32/get_syscall_result.c
@@ -0,0 +1 @@
+#include "crisv10/get_syscall_result.c"

linux/crisv32/print_pc.c

diff --git a/linux/crisv32/print_pc.c b/linux/crisv32/print_pc.c
new file mode 100644
index 0000000..b4af692
--- /dev/null
+++ b/linux/crisv32/print_pc.c
@@ -0,0 +1,6 @@
+long pc;
+if (upeek(tcp->pid, 4*PT_ERP, &pc) < 0) {
+	PRINTBADPC;
+	return;
+}
+tprintf(fmt, pc);

linux/hppa/arch_regs.c

diff --git a/linux/hppa/arch_regs.c b/linux/hppa/arch_regs.c
new file mode 100644
index 0000000..56d1ee3
--- /dev/null
+++ b/linux/hppa/arch_regs.c
@@ -0,0 +1 @@
+static long hppa_r28;

linux/hppa/get_error.c

diff --git a/linux/hppa/get_error.c b/linux/hppa/get_error.c
new file mode 100644
index 0000000..901aa54
--- /dev/null
+++ b/linux/hppa/get_error.c
@@ -0,0 +1,6 @@
+if (check_errno && is_negated_errno(hppa_r28)) {
+	tcp->u_rval = -1;
+	tcp->u_error = -hppa_r28;
+} else {
+	tcp->u_rval = hppa_r28;
+}

linux/hppa/get_scno.c

diff --git a/linux/hppa/get_scno.c b/linux/hppa/get_scno.c
new file mode 100644
index 0000000..0dc1a46
--- /dev/null
+++ b/linux/hppa/get_scno.c
@@ -0,0 +1,2 @@
+if (upeek(tcp->pid, PT_GR20, &scno) < 0)
+	return -1;

linux/hppa/get_syscall_args.c

diff --git a/linux/hppa/get_syscall_args.c b/linux/hppa/get_syscall_args.c
new file mode 100644
index 0000000..117b68b
--- /dev/null
+++ b/linux/hppa/get_syscall_args.c
@@ -0,0 +1,5 @@
+unsigned int i;
+
+for (i = 0; i < tcp->s_ent->nargs; ++i)
+	if (upeek(tcp->pid, PT_GR26-4*i, &tcp->u_arg[i]) < 0)
+		return -1;

linux/hppa/get_syscall_result.c

diff --git a/linux/hppa/get_syscall_result.c b/linux/hppa/get_syscall_result.c
new file mode 100644
index 0000000..d929b9f
--- /dev/null
+++ b/linux/hppa/get_syscall_result.c
@@ -0,0 +1,2 @@
+if (upeek(tcp->pid, PT_GR28, &hppa_r28) < 0)
+	return -1;

linux/hppa/print_pc.c

diff --git a/linux/hppa/print_pc.c b/linux/hppa/print_pc.c
new file mode 100644
index 0000000..7656346
--- /dev/null
+++ b/linux/hppa/print_pc.c
@@ -0,0 +1,6 @@
+long pc;
+if (upeek(tcp->pid, PT_IAOQ0, &pc) < 0) {
+	PRINTBADPC;
+	return;
+}
+tprintf(fmt, pc);

linux/i386/arch_regs.c

diff --git a/linux/i386/arch_regs.c b/linux/i386/arch_regs.c
new file mode 100644
index 0000000..15b5615
--- /dev/null
+++ b/linux/i386/arch_regs.c
@@ -0,0 +1,4 @@
+static struct user_regs_struct i386_regs;
+long *const i386_esp_ptr = &i386_regs.esp;
+
+#define ARCH_REGS_FOR_GETREGS i386_regs

linux/i386/get_error.c

diff --git a/linux/i386/get_error.c b/linux/i386/get_error.c
new file mode 100644
index 0000000..465118b
--- /dev/null
+++ b/linux/i386/get_error.c
@@ -0,0 +1,6 @@
+if (check_errno && is_negated_errno(i386_regs.eax)) {
+	tcp->u_rval = -1;
+	tcp->u_error = -i386_regs.eax;
+} else {
+	tcp->u_rval = i386_regs.eax;
+}

linux/i386/get_scno.c

diff --git a/linux/i386/get_scno.c b/linux/i386/get_scno.c
new file mode 100644
index 0000000..fa22fa6
--- /dev/null
+++ b/linux/i386/get_scno.c
@@ -0,0 +1 @@
+scno = i386_regs.orig_eax;

linux/i386/get_syscall_args.c

diff --git a/linux/i386/get_syscall_args.c b/linux/i386/get_syscall_args.c
new file mode 100644
index 0000000..30cce6a
--- /dev/null
+++ b/linux/i386/get_syscall_args.c
@@ -0,0 +1,6 @@
+tcp->u_arg[0] = i386_regs.ebx;
+tcp->u_arg[1] = i386_regs.ecx;
+tcp->u_arg[2] = i386_regs.edx;
+tcp->u_arg[3] = i386_regs.esi;
+tcp->u_arg[4] = i386_regs.edi;
+tcp->u_arg[5] = i386_regs.ebp;

linux/i386/print_pc.c

diff --git a/linux/i386/print_pc.c b/linux/i386/print_pc.c
new file mode 100644
index 0000000..0d5c957
--- /dev/null
+++ b/linux/i386/print_pc.c
@@ -0,0 +1 @@
+tprintf(fmt, i386_regs.eip);

linux/ia64/arch_getrval2.c

diff --git a/linux/ia64/arch_getrval2.c b/linux/ia64/arch_getrval2.c
new file mode 100644
index 0000000..7a6875f
--- /dev/null
+++ b/linux/ia64/arch_getrval2.c
@@ -0,0 +1,5 @@
+long
+getrval2(struct tcb *tcp)
+{
+	return ia64_regs.gr[9];
+}

linux/ia64/arch_regs.c

diff --git a/linux/ia64/arch_regs.c b/linux/ia64/arch_regs.c
new file mode 100644
index 0000000..d7de201
--- /dev/null
+++ b/linux/ia64/arch_regs.c
@@ -0,0 +1,7 @@
+static struct pt_all_user_regs ia64_regs;
+unsigned long *const ia64_frame_ptr = &ia64_regs.gr[12];
+
+#define IA64_PSR_IS	((long)1 << 34)
+#define ia64_ia32mode	(ia64_regs.cr_ipsr & IA64_PSR_IS)
+
+#define ARCH_REGS_FOR_GETREGS ia64_regs

linux/ia64/get_error.c

diff --git a/linux/ia64/get_error.c b/linux/ia64/get_error.c
new file mode 100644
index 0000000..fb6b9f4
--- /dev/null
+++ b/linux/ia64/get_error.c
@@ -0,0 +1,16 @@
+if (ia64_ia32mode) {
+	int err = ia64_regs.gr[8];
+	if (check_errno && is_negated_errno(err)) {
+		tcp->u_rval = -1;
+		tcp->u_error = -err;
+	} else {
+		tcp->u_rval = err;
+	}
+} else {
+	if (check_errno && ia64_regs.gr[10]) {
+		tcp->u_rval = -1;
+		tcp->u_error = ia64_regs.gr[8];
+	} else {
+		tcp->u_rval = ia64_regs.gr[8];
+	}
+}

linux/ia64/get_scno.c

diff --git a/linux/ia64/get_scno.c b/linux/ia64/get_scno.c
new file mode 100644
index 0000000..86333fd
--- /dev/null
+++ b/linux/ia64/get_scno.c
@@ -0,0 +1,5 @@
+if (ia64_ia32mode) {
+	scno = ia64_regs.gr[0];
+} else {
+	scno = ia64_regs.gr[15];
+}

linux/ia64/get_syscall_args.c

diff --git a/linux/ia64/get_syscall_args.c b/linux/ia64/get_syscall_args.c
new file mode 100644
index 0000000..9527396
--- /dev/null
+++ b/linux/ia64/get_syscall_args.c
@@ -0,0 +1,22 @@
+if (!ia64_ia32mode) {
+	unsigned long *rbs_end =
+		(unsigned long *) ia64_regs.ar[PT_AUR_BSP];
+	unsigned long sof = (ia64_regs.cfm >> 0) & 0x7f;
+	unsigned long sol = (ia64_regs.cfm >> 7) & 0x7f;
+	unsigned long *out0 = ia64_rse_skip_regs(rbs_end, -sof + sol);
+	unsigned int i;
+
+	for (i = 0; i < tcp->s_ent->nargs; ++i) {
+		if (umoven(tcp, (unsigned long) ia64_rse_skip_regs(out0, i),
+			   sizeof(long), &tcp->u_arg[i]) < 0)
+			return -1;
+	}
+} else {
+	/* truncate away IVE sign-extension */
+	tcp->u_arg[0] = 0xffffffff & ia64_regs.gr[11]; /* EBX */
+	tcp->u_arg[1] = 0xffffffff & ia64_regs.gr[ 9]; /* ECX */
+	tcp->u_arg[2] = 0xffffffff & ia64_regs.gr[10]; /* EDX */
+	tcp->u_arg[3] = 0xffffffff & ia64_regs.gr[14]; /* ESI */
+	tcp->u_arg[4] = 0xffffffff & ia64_regs.gr[15]; /* EDI */
+	tcp->u_arg[5] = 0xffffffff & ia64_regs.gr[13]; /* EBP */
+}

linux/ia64/print_pc.c

diff --git a/linux/ia64/print_pc.c b/linux/ia64/print_pc.c
new file mode 100644
index 0000000..fe96780
--- /dev/null
+++ b/linux/ia64/print_pc.c
@@ -0,0 +1 @@
+tprintf(fmt, ia64_regs.br[0]);

linux/m68k/arch_regs.c

diff --git a/linux/m68k/arch_regs.c b/linux/m68k/arch_regs.c
new file mode 100644
index 0000000..5d41825
--- /dev/null
+++ b/linux/m68k/arch_regs.c
@@ -0,0 +1 @@
+static long m68k_d0;

linux/m68k/get_error.c

diff --git a/linux/m68k/get_error.c b/linux/m68k/get_error.c
new file mode 100644
index 0000000..8bf5359
--- /dev/null
+++ b/linux/m68k/get_error.c
@@ -0,0 +1,6 @@
+if (check_errno && is_negated_errno(m68k_d0)) {
+	tcp->u_rval = -1;
+	tcp->u_error = -m68k_d0;
+} else {
+	tcp->u_rval = m68k_d0;
+}

linux/m68k/get_scno.c

diff --git a/linux/m68k/get_scno.c b/linux/m68k/get_scno.c
new file mode 100644
index 0000000..1a6d28e
--- /dev/null
+++ b/linux/m68k/get_scno.c
@@ -0,0 +1,2 @@
+if (upeek(tcp->pid, 4*PT_ORIG_D0, &scno) < 0)
+	return -1;

linux/m68k/get_syscall_args.c

diff --git a/linux/m68k/get_syscall_args.c b/linux/m68k/get_syscall_args.c
new file mode 100644
index 0000000..bdffcb1
--- /dev/null
+++ b/linux/m68k/get_syscall_args.c
@@ -0,0 +1,5 @@
+unsigned int i;
+
+for (i = 0; i < tcp->s_ent->nargs; ++i)
+	if (upeek(tcp->pid, (i < 5 ? i : i + 2)*4, &tcp->u_arg[i]) < 0)
+		return -1;

linux/m68k/get_syscall_result.c

diff --git a/linux/m68k/get_syscall_result.c b/linux/m68k/get_syscall_result.c
new file mode 100644
index 0000000..fc452b4
--- /dev/null
+++ b/linux/m68k/get_syscall_result.c
@@ -0,0 +1,2 @@
+if (upeek(tcp->pid, 4*PT_D0, &m68k_d0) < 0)
+	return -1;

linux/m68k/print_pc.c

diff --git a/linux/m68k/print_pc.c b/linux/m68k/print_pc.c
new file mode 100644
index 0000000..aa4497d
--- /dev/null
+++ b/linux/m68k/print_pc.c
@@ -0,0 +1,6 @@
+long pc;
+if (upeek(tcp->pid, 4*PT_PC, &pc) < 0) {
+	PRINTBADPC;
+	return;
+}
+tprintf(fmt, pc);

linux/metag/arch_regs.c

diff --git a/linux/metag/arch_regs.c b/linux/metag/arch_regs.c
new file mode 100644
index 0000000..b7923ba
--- /dev/null
+++ b/linux/metag/arch_regs.c
@@ -0,0 +1,2 @@
+static struct user_gp_regs metag_regs;
+#define ARCH_REGS_FOR_GETREGSET metag_regs

linux/metag/get_error.c

diff --git a/linux/metag/get_error.c b/linux/metag/get_error.c
new file mode 100644
index 0000000..809eec5
--- /dev/null
+++ b/linux/metag/get_error.c
@@ -0,0 +1,7 @@
+/* result pointer in D0Re0 (D0.0) */
+if (check_errno && is_negated_errno(metag_regs.dx[0][0])) {
+	tcp->u_rval = -1;
+	tcp->u_error = -metag_regs.dx[0][0];
+} else {
+	tcp->u_rval = metag_regs.dx[0][0];
+}

linux/metag/get_scno.c

diff --git a/linux/metag/get_scno.c b/linux/metag/get_scno.c
new file mode 100644
index 0000000..45cfa48
--- /dev/null
+++ b/linux/metag/get_scno.c
@@ -0,0 +1 @@
+scno = metag_regs.dx[0][1];	/* syscall number in D1Re0 (D1.0) */

linux/metag/get_syscall_args.c

diff --git a/linux/metag/get_syscall_args.c b/linux/metag/get_syscall_args.c
new file mode 100644
index 0000000..269f4eb
--- /dev/null
+++ b/linux/metag/get_syscall_args.c
@@ -0,0 +1,5 @@
+unsigned int i;
+
+for (i = 0; i < MAX_ARGS; i++)
+	/* arguments go backwards from D1Ar1 (D1.3) */
+	tcp->u_arg[i] = ((unsigned long *)&metag_regs.dx[3][1])[-i];

linux/metag/print_pc.c

diff --git a/linux/metag/print_pc.c b/linux/metag/print_pc.c
new file mode 100644
index 0000000..4415f67
--- /dev/null
+++ b/linux/metag/print_pc.c
@@ -0,0 +1 @@
+tprintf(fmt, metag_regs.pc);

linux/microblaze/arch_regs.c

diff --git a/linux/microblaze/arch_regs.c b/linux/microblaze/arch_regs.c
new file mode 100644
index 0000000..9c26aad
--- /dev/null
+++ b/linux/microblaze/arch_regs.c
@@ -0,0 +1 @@
+static long microblaze_r3;

linux/microblaze/get_error.c

diff --git a/linux/microblaze/get_error.c b/linux/microblaze/get_error.c
new file mode 100644
index 0000000..d36e281
--- /dev/null
+++ b/linux/microblaze/get_error.c
@@ -0,0 +1,6 @@
+if (check_errno && is_negated_errno(microblaze_r3)) {
+	tcp->u_rval = -1;
+	tcp->u_error = -microblaze_r3;
+} else {
+	tcp->u_rval = microblaze_r3;
+}

linux/microblaze/get_scno.c

diff --git a/linux/microblaze/get_scno.c b/linux/microblaze/get_scno.c
new file mode 100644
index 0000000..cf1d919
--- /dev/null
+++ b/linux/microblaze/get_scno.c
@@ -0,0 +1,2 @@
+if (upeek(tcp->pid, 0, &scno) < 0)
+	return -1;

linux/microblaze/get_syscall_args.c

diff --git a/linux/microblaze/get_syscall_args.c b/linux/microblaze/get_syscall_args.c
new file mode 100644
index 0000000..373911c
--- /dev/null
+++ b/linux/microblaze/get_syscall_args.c
@@ -0,0 +1,5 @@
+unsigned int i;
+
+for (i = 0; i < tcp->s_ent->nargs; ++i)
+	if (upeek(tcp->pid, (5 + i) * 4, &tcp->u_arg[i]) < 0)
+		return -1;

linux/microblaze/get_syscall_result.c

diff --git a/linux/microblaze/get_syscall_result.c b/linux/microblaze/get_syscall_result.c
new file mode 100644
index 0000000..b7ec27f
--- /dev/null
+++ b/linux/microblaze/get_syscall_result.c
@@ -0,0 +1,2 @@
+if (upeek(tcp->pid, 3 * 4, &microblaze_r3) < 0)
+	return -1;

linux/microblaze/print_pc.c

diff --git a/linux/microblaze/print_pc.c b/linux/microblaze/print_pc.c
new file mode 100644
index 0000000..b1eef14
--- /dev/null
+++ b/linux/microblaze/print_pc.c
@@ -0,0 +1,6 @@
+long pc;
+if (upeek(tcp->pid, PT_PC, &pc) < 0) {
+	PRINTBADPC;
+	return;
+}
+tprintf(fmt, pc);

linux/mips/arch_regs.c

diff --git a/linux/mips/arch_regs.c b/linux/mips/arch_regs.c
new file mode 100644
index 0000000..c46e6eb
--- /dev/null
+++ b/linux/mips/arch_regs.c
@@ -0,0 +1,3 @@
+struct mips_regs mips_regs; /* not static */
+/* PTRACE_GETREGS on MIPS is available since linux v2.6.15. */
+#define ARCH_REGS_FOR_GETREGS mips_regs

linux/mips/get_error.c

diff --git a/linux/mips/get_error.c b/linux/mips/get_error.c
new file mode 100644
index 0000000..e934af0
--- /dev/null
+++ b/linux/mips/get_error.c
@@ -0,0 +1,9 @@
+if (check_errno && mips_REG_A3) {
+	tcp->u_rval = -1;
+	tcp->u_error = mips_REG_V0;
+} else {
+# if defined LINUX_MIPSN32
+	tcp->u_lrval = mips_REG_V0;
+# endif
+	tcp->u_rval = mips_REG_V0;
+}

linux/mips/get_scno.c

diff --git a/linux/mips/get_scno.c b/linux/mips/get_scno.c
new file mode 100644
index 0000000..967235d
--- /dev/null
+++ b/linux/mips/get_scno.c
@@ -0,0 +1,9 @@
+scno = mips_REG_V0;
+
+if (!SCNO_IN_RANGE(scno)) {
+	if (mips_REG_A3 == 0 || mips_REG_A3 == (uint64_t) -1) {
+		if (debug_flag)
+			fprintf(stderr, "stray syscall exit: v0 = %ld\n", scno);
+		return 0;
+	}
+}

linux/mips/get_syscall_args.c

diff --git a/linux/mips/get_syscall_args.c b/linux/mips/get_syscall_args.c
new file mode 100644
index 0000000..4e4a22b
--- /dev/null
+++ b/linux/mips/get_syscall_args.c
@@ -0,0 +1,27 @@
+#if defined LINUX_MIPSN64
+	tcp->u_arg[0] = mips_REG_A0;
+	tcp->u_arg[1] = mips_REG_A1;
+	tcp->u_arg[2] = mips_REG_A2;
+	tcp->u_arg[3] = mips_REG_A3;
+	tcp->u_arg[4] = mips_REG_A4;
+	tcp->u_arg[5] = mips_REG_A5;
+#elif defined LINUX_MIPSN32
+	tcp->u_arg[0] = tcp->ext_arg[0] = mips_REG_A0;
+	tcp->u_arg[1] = tcp->ext_arg[1] = mips_REG_A1;
+	tcp->u_arg[2] = tcp->ext_arg[2] = mips_REG_A2;
+	tcp->u_arg[3] = tcp->ext_arg[3] = mips_REG_A3;
+	tcp->u_arg[4] = tcp->ext_arg[4] = mips_REG_A4;
+	tcp->u_arg[5] = tcp->ext_arg[5] = mips_REG_A5;
+#elif defined LINUX_MIPSO32
+	tcp->u_arg[0] = mips_REG_A0;
+	tcp->u_arg[1] = mips_REG_A1;
+	tcp->u_arg[2] = mips_REG_A2;
+	tcp->u_arg[3] = mips_REG_A3;
+	if (tcp->s_ent->nargs > 4) {
+		umoven(tcp, mips_REG_SP + 4 * 4,
+		       (tcp->s_ent->nargs - 4) * sizeof(tcp->u_arg[0]),
+		       &tcp->u_arg[4]);
+	}
+#else
+# error unsupported mips abi
+#endif

linux/mips/print_pc.c

diff --git a/linux/mips/print_pc.c b/linux/mips/print_pc.c
new file mode 100644
index 0000000..569b0b6
--- /dev/null
+++ b/linux/mips/print_pc.c
@@ -0,0 +1 @@
+tprintf(fmt, (unsigned long) mips_REG_EPC);

linux/or1k/arch_regs.c

diff --git a/linux/or1k/arch_regs.c b/linux/or1k/arch_regs.c
new file mode 100644
index 0000000..7415e08
--- /dev/null
+++ b/linux/or1k/arch_regs.c
@@ -0,0 +1,2 @@
+static struct user_regs_struct or1k_regs;
+#define ARCH_REGS_FOR_GETREGSET or1k_regs

linux/or1k/get_error.c

diff --git a/linux/or1k/get_error.c b/linux/or1k/get_error.c
new file mode 100644
index 0000000..cbf9a6e
--- /dev/null
+++ b/linux/or1k/get_error.c
@@ -0,0 +1,6 @@
+if (check_errno && is_negated_errno(or1k_regs.gpr[11])) {
+	tcp->u_rval = -1;
+	tcp->u_error = -or1k_regs.gpr[11];
+} else {
+	tcp->u_rval = or1k_regs.gpr[11];
+}

linux/or1k/get_scno.c

diff --git a/linux/or1k/get_scno.c b/linux/or1k/get_scno.c
new file mode 100644
index 0000000..99fada2
--- /dev/null
+++ b/linux/or1k/get_scno.c
@@ -0,0 +1 @@
+scno = or1k_regs.gpr[11];

linux/or1k/get_syscall_args.c

diff --git a/linux/or1k/get_syscall_args.c b/linux/or1k/get_syscall_args.c
new file mode 100644
index 0000000..751cba0
--- /dev/null
+++ b/linux/or1k/get_syscall_args.c
@@ -0,0 +1,6 @@
+tcp->u_arg[0] = or1k_regs.gpr[3 + 0];
+tcp->u_arg[1] = or1k_regs.gpr[3 + 1];
+tcp->u_arg[2] = or1k_regs.gpr[3 + 2];
+tcp->u_arg[3] = or1k_regs.gpr[3 + 3];
+tcp->u_arg[4] = or1k_regs.gpr[3 + 4];
+tcp->u_arg[5] = or1k_regs.gpr[3 + 5];

linux/or1k/print_pc.c

diff --git a/linux/or1k/print_pc.c b/linux/or1k/print_pc.c
new file mode 100644
index 0000000..3fe4a1a
--- /dev/null
+++ b/linux/or1k/print_pc.c
@@ -0,0 +1 @@
+tprintf(fmt, or1k_regs.pc);

linux/powerpc/arch_regs.c

diff --git a/linux/powerpc/arch_regs.c b/linux/powerpc/arch_regs.c
new file mode 100644
index 0000000..cd92d21
--- /dev/null
+++ b/linux/powerpc/arch_regs.c
@@ -0,0 +1,3 @@
+struct pt_regs ppc_regs; /* not static */
+
+#define ARCH_REGS_FOR_GETREGS ppc_regs

linux/powerpc/get_error.c

diff --git a/linux/powerpc/get_error.c b/linux/powerpc/get_error.c
new file mode 100644
index 0000000..f0f0a4e
--- /dev/null
+++ b/linux/powerpc/get_error.c
@@ -0,0 +1,6 @@
+if (check_errno && (ppc_regs.ccr & 0x10000000)) {
+	tcp->u_rval = -1;
+	tcp->u_error = ppc_regs.gpr[3];
+} else {
+	tcp->u_rval = ppc_regs.gpr[3];
+}

linux/powerpc/get_scno.c

diff --git a/linux/powerpc/get_scno.c b/linux/powerpc/get_scno.c
new file mode 100644
index 0000000..a311734
--- /dev/null
+++ b/linux/powerpc/get_scno.c
@@ -0,0 +1 @@
+scno = ppc_regs.gpr[0];

linux/powerpc/get_syscall_args.c

diff --git a/linux/powerpc/get_syscall_args.c b/linux/powerpc/get_syscall_args.c
new file mode 100644
index 0000000..237cf77
--- /dev/null
+++ b/linux/powerpc/get_syscall_args.c
@@ -0,0 +1,6 @@
+tcp->u_arg[0] = ppc_regs.orig_gpr3;
+tcp->u_arg[1] = ppc_regs.gpr[4];
+tcp->u_arg[2] = ppc_regs.gpr[5];
+tcp->u_arg[3] = ppc_regs.gpr[6];
+tcp->u_arg[4] = ppc_regs.gpr[7];
+tcp->u_arg[5] = ppc_regs.gpr[8];

linux/powerpc/getregs_old.c

diff --git a/linux/powerpc/getregs_old.c b/linux/powerpc/getregs_old.c
new file mode 100644
index 0000000..22167cb
--- /dev/null
+++ b/linux/powerpc/getregs_old.c
@@ -0,0 +1,35 @@
+/*
+ * PTRACE_GETREGS was added to the PowerPC kernel in v2.6.23,
+ * we provide a slow fallback for old kernels.
+ */
+static int
+getregs_old(pid_t pid)
+{
+	int i;
+	long r;
+
+	if (iflag) {
+		r = upeek(pid, sizeof(long) * PT_NIP, (long *)&ppc_regs.nip);
+		if (r)
+			goto out;
+	}
+#ifdef POWERPC64 /* else we never use it */
+	r = upeek(pid, sizeof(long) * PT_MSR, (long *)&ppc_regs.msr);
+	if (r)
+		goto out;
+#endif
+	r = upeek(pid, sizeof(long) * PT_CCR, (long *)&ppc_regs.ccr);
+	if (r)
+		goto out;
+	r = upeek(pid, sizeof(long) * PT_ORIG_R3, (long *)&ppc_regs.orig_gpr3);
+	if (r)
+		goto out;
+	for (i = 0; i <= 8; i++) {
+		r = upeek(pid, sizeof(long) * (PT_R0 + i),
+			  (long *)&ppc_regs.gpr[i]);
+		if (r)
+			goto out;
+	}
+ out:
+	return r;
+}

linux/powerpc/print_pc.c

diff --git a/linux/powerpc/print_pc.c b/linux/powerpc/print_pc.c
new file mode 100644
index 0000000..34112fb
--- /dev/null
+++ b/linux/powerpc/print_pc.c
@@ -0,0 +1 @@
+tprintf(fmt, ppc_regs.nip);

linux/powerpc64/arch_regs.c

diff --git a/linux/powerpc64/arch_regs.c b/linux/powerpc64/arch_regs.c
new file mode 100644
index 0000000..b5c572d
--- /dev/null
+++ b/linux/powerpc64/arch_regs.c
@@ -0,0 +1 @@
+#include "powerpc/arch_regs.c"

linux/powerpc64/get_error.c

diff --git a/linux/powerpc64/get_error.c b/linux/powerpc64/get_error.c
new file mode 100644
index 0000000..209bfd8
--- /dev/null
+++ b/linux/powerpc64/get_error.c
@@ -0,0 +1 @@
+#include "powerpc/get_error.c"

linux/powerpc64/get_scno.c

diff --git a/linux/powerpc64/get_scno.c b/linux/powerpc64/get_scno.c
new file mode 100644
index 0000000..1e67010
--- /dev/null
+++ b/linux/powerpc64/get_scno.c
@@ -0,0 +1,11 @@
+scno = ppc_regs.gpr[0];
+unsigned int currpers;
+
+/*
+ * Check for 64/32 bit mode.
+ * Embedded implementations covered by Book E extension of PPC use
+ * bit 0 (CM) of 32-bit Machine state register (MSR).
+ * Other implementations use bit 0 (SF) of 64-bit MSR.
+ */
+currpers = (ppc_regs.msr & 0x8000000080000000) ? 0 : 1;
+update_personality(tcp, currpers);

linux/powerpc64/get_syscall_args.c

diff --git a/linux/powerpc64/get_syscall_args.c b/linux/powerpc64/get_syscall_args.c
new file mode 100644
index 0000000..5561a55
--- /dev/null
+++ b/linux/powerpc64/get_syscall_args.c
@@ -0,0 +1 @@
+#include "powerpc/get_syscall_args.c"

linux/powerpc64/getregs_old.c

diff --git a/linux/powerpc64/getregs_old.c b/linux/powerpc64/getregs_old.c
new file mode 100644
index 0000000..177ff74
--- /dev/null
+++ b/linux/powerpc64/getregs_old.c
@@ -0,0 +1 @@
+#include "powerpc/getregs_old.c"

linux/powerpc64/print_pc.c

diff --git a/linux/powerpc64/print_pc.c b/linux/powerpc64/print_pc.c
new file mode 100644
index 0000000..ddaf880
--- /dev/null
+++ b/linux/powerpc64/print_pc.c
@@ -0,0 +1 @@
+#include "powerpc/print_pc.c"

linux/s390/arch_regs.c

diff --git a/linux/s390/arch_regs.c b/linux/s390/arch_regs.c
new file mode 100644
index 0000000..32c50a1
--- /dev/null
+++ b/linux/s390/arch_regs.c
@@ -0,0 +1,4 @@
+/* PTRACE_GETREGSET on S390 is available since linux v2.6.27. */
+static struct user_regs_struct s390_regset;
+unsigned long *const s390_frame_ptr = &s390_regset.gprs[15];
+#define ARCH_REGS_FOR_GETREGSET s390_regset

linux/s390/get_error.c

diff --git a/linux/s390/get_error.c b/linux/s390/get_error.c
new file mode 100644
index 0000000..29fffbd
--- /dev/null
+++ b/linux/s390/get_error.c
@@ -0,0 +1,6 @@
+if (check_errno && is_negated_errno(s390_regset.gprs[2])) {
+	tcp->u_rval = -1;
+	tcp->u_error = -s390_regset.gprs[2];
+} else {
+	tcp->u_rval = s390_regset.gprs[2];
+}

linux/s390/get_scno.c

diff --git a/linux/s390/get_scno.c b/linux/s390/get_scno.c
new file mode 100644
index 0000000..b9e1c19
--- /dev/null
+++ b/linux/s390/get_scno.c
@@ -0,0 +1 @@
+scno = s390_regset.gprs[2];

linux/s390/get_syscall_args.c

diff --git a/linux/s390/get_syscall_args.c b/linux/s390/get_syscall_args.c
new file mode 100644
index 0000000..85f2585
--- /dev/null
+++ b/linux/s390/get_syscall_args.c
@@ -0,0 +1,6 @@
+tcp->u_arg[0] = s390_regset.orig_gpr2;
+tcp->u_arg[1] = s390_regset.gprs[3];
+tcp->u_arg[2] = s390_regset.gprs[4];
+tcp->u_arg[3] = s390_regset.gprs[5];
+tcp->u_arg[4] = s390_regset.gprs[6];
+tcp->u_arg[5] = s390_regset.gprs[7];

linux/s390/print_pc.c

diff --git a/linux/s390/print_pc.c b/linux/s390/print_pc.c
new file mode 100644
index 0000000..f92ccd4
--- /dev/null
+++ b/linux/s390/print_pc.c
@@ -0,0 +1 @@
+tprintf(fmt, s390_regset.psw.addr);

linux/s390x/arch_regs.c

diff --git a/linux/s390x/arch_regs.c b/linux/s390x/arch_regs.c
new file mode 100644
index 0000000..62aece7
--- /dev/null
+++ b/linux/s390x/arch_regs.c
@@ -0,0 +1 @@
+#include "s390/arch_regs.c"

linux/s390x/get_error.c

diff --git a/linux/s390x/get_error.c b/linux/s390x/get_error.c
new file mode 100644
index 0000000..8e3944c
--- /dev/null
+++ b/linux/s390x/get_error.c
@@ -0,0 +1 @@
+#include "s390/get_error.c"

linux/s390x/get_scno.c

diff --git a/linux/s390x/get_scno.c b/linux/s390x/get_scno.c
new file mode 100644
index 0000000..71816fb
--- /dev/null
+++ b/linux/s390x/get_scno.c
@@ -0,0 +1 @@
+#include "s390/get_scno.c"

linux/s390x/get_syscall_args.c

diff --git a/linux/s390x/get_syscall_args.c b/linux/s390x/get_syscall_args.c
new file mode 100644
index 0000000..4ded41d
--- /dev/null
+++ b/linux/s390x/get_syscall_args.c
@@ -0,0 +1 @@
+#include "s390/get_syscall_args.c"

linux/s390x/print_pc.c

diff --git a/linux/s390x/print_pc.c b/linux/s390x/print_pc.c
new file mode 100644
index 0000000..9a445f7
--- /dev/null
+++ b/linux/s390x/print_pc.c
@@ -0,0 +1 @@
+#include "s390/print_pc.c"

linux/sh/arch_getrval2.c

diff --git a/linux/sh/arch_getrval2.c b/linux/sh/arch_getrval2.c
new file mode 100644
index 0000000..8f60de7
--- /dev/null
+++ b/linux/sh/arch_getrval2.c
@@ -0,0 +1,8 @@
+long
+getrval2(struct tcb *tcp)
+{
+	long val;
+	if (upeek(tcp->pid, 4*(REG_REG0+1), &val) < 0)
+		return -1;
+	return val;
+}

linux/sh/arch_regs.c

diff --git a/linux/sh/arch_regs.c b/linux/sh/arch_regs.c
new file mode 100644
index 0000000..9d24ee7
--- /dev/null
+++ b/linux/sh/arch_regs.c
@@ -0,0 +1 @@
+static long sh_r0;

linux/sh/get_error.c

diff --git a/linux/sh/get_error.c b/linux/sh/get_error.c
new file mode 100644
index 0000000..2375e3c
--- /dev/null
+++ b/linux/sh/get_error.c
@@ -0,0 +1,6 @@
+if (check_errno && is_negated_errno(sh_r0)) {
+	tcp->u_rval = -1;
+	tcp->u_error = -sh_r0;
+} else {
+	tcp->u_rval = sh_r0;
+}

linux/sh/get_scno.c

diff --git a/linux/sh/get_scno.c b/linux/sh/get_scno.c
new file mode 100644
index 0000000..90dbf0f
--- /dev/null
+++ b/linux/sh/get_scno.c
@@ -0,0 +1,19 @@
+/*
+ * In the new syscall ABI, the system call number is in R3.
+ */
+if (upeek(tcp->pid, 4*(REG_REG0+3), &scno) < 0)
+	return -1;
+
+if (scno < 0) {
+	/* Odd as it may seem, a glibc bug has been known to cause
+	   glibc to issue bogus negative syscall numbers.  So for
+	   our purposes, make strace print what it *should* have been */
+	long correct_scno = (scno & 0xff);
+	if (debug_flag)
+		fprintf(stderr,
+			"Detected glibc bug: bogus system call"
+			" number = %ld, correcting to %ld\n",
+			scno,
+			correct_scno);
+	scno = correct_scno;
+}

linux/sh/get_syscall_args.c

diff --git a/linux/sh/get_syscall_args.c b/linux/sh/get_syscall_args.c
new file mode 100644
index 0000000..7c94f48
--- /dev/null
+++ b/linux/sh/get_syscall_args.c
@@ -0,0 +1,10 @@
+static const int syscall_regs[MAX_ARGS] = {
+	4 * (REG_REG0+4), 4 * (REG_REG0+5), 4 * (REG_REG0+6),
+	4 * (REG_REG0+7), 4 * (REG_REG0  ), 4 * (REG_REG0+1)
+};
+
+unsigned int i;
+
+for (i = 0; i < tcp->s_ent->nargs; ++i)
+	if (upeek(tcp->pid, syscall_regs[i], &tcp->u_arg[i]) < 0)
+		return -1;

linux/sh/get_syscall_result.c

diff --git a/linux/sh/get_syscall_result.c b/linux/sh/get_syscall_result.c
new file mode 100644
index 0000000..3ee0546
--- /dev/null
+++ b/linux/sh/get_syscall_result.c
@@ -0,0 +1,3 @@
+/* new syscall ABI returns result in R0 */
+if (upeek(tcp->pid, 4*REG_REG0, (long *)&sh_r0) < 0)
+	return -1;

linux/sh/print_pc.c

diff --git a/linux/sh/print_pc.c b/linux/sh/print_pc.c
new file mode 100644
index 0000000..2f43eff
--- /dev/null
+++ b/linux/sh/print_pc.c
@@ -0,0 +1,6 @@
+long pc;
+if (upeek(tcp->pid, 4*REG_PC, &pc) < 0) {
+	PRINTBADPC;
+	return;
+}
+tprintf(fmt, pc);

linux/sh64/arch_regs.c

diff --git a/linux/sh64/arch_regs.c b/linux/sh64/arch_regs.c
new file mode 100644
index 0000000..e09cac5
--- /dev/null
+++ b/linux/sh64/arch_regs.c
@@ -0,0 +1 @@
+static long sh64_r9;

linux/sh64/get_error.c

diff --git a/linux/sh64/get_error.c b/linux/sh64/get_error.c
new file mode 100644
index 0000000..9e8aeaf
--- /dev/null
+++ b/linux/sh64/get_error.c
@@ -0,0 +1,6 @@
+if (check_errno && is_negated_errno(sh64_r9)) {
+	tcp->u_rval = -1;
+	tcp->u_error = -sh64_r9;
+} else {
+	tcp->u_rval = sh64_r9;
+}

linux/sh64/get_scno.c

diff --git a/linux/sh64/get_scno.c b/linux/sh64/get_scno.c
new file mode 100644
index 0000000..9e7ecd4
--- /dev/null
+++ b/linux/sh64/get_scno.c
@@ -0,0 +1,3 @@
+if (upeek(tcp->pid, REG_SYSCALL, &scno) < 0)
+	return -1;
+scno &= 0xFFFF;

linux/sh64/get_syscall_args.c

diff --git a/linux/sh64/get_syscall_args.c b/linux/sh64/get_syscall_args.c
new file mode 100644
index 0000000..dcc8967
--- /dev/null
+++ b/linux/sh64/get_syscall_args.c
@@ -0,0 +1,7 @@
+/* Registers used by SH5 Linux system calls for parameters */
+static const int syscall_regs[MAX_ARGS] = { 2, 3, 4, 5, 6, 7 };
+unsigned int i;
+
+for (i = 0; i < tcp->s_ent->nargs; ++i)
+	if (upeek(tcp->pid, REG_GENERAL(syscall_regs[i]), &tcp->u_arg[i]) < 0)
+		return -1;

linux/sh64/get_syscall_result.c

diff --git a/linux/sh64/get_syscall_result.c b/linux/sh64/get_syscall_result.c
new file mode 100644
index 0000000..e53bd0f
--- /dev/null
+++ b/linux/sh64/get_syscall_result.c
@@ -0,0 +1,3 @@
+/* ABI defines result returned in r9 */
+if (upeek(tcp->pid, REG_GENERAL(9), (long *)&sh64_r9) < 0)
+	return -1;

linux/sh64/print_pc.c

diff --git a/linux/sh64/print_pc.c b/linux/sh64/print_pc.c
new file mode 100644
index 0000000..c0232e5
--- /dev/null
+++ b/linux/sh64/print_pc.c
@@ -0,0 +1,6 @@
+long pc;
+if (upeek(tcp->pid, REG_PC, &pc) < 0) {
+	PRINTBADPC;
+	return;
+}
+tprintf(fmt, pc);

linux/sparc/arch_getrval2.c

diff --git a/linux/sparc/arch_getrval2.c b/linux/sparc/arch_getrval2.c
new file mode 100644
index 0000000..9079482
--- /dev/null
+++ b/linux/sparc/arch_getrval2.c
@@ -0,0 +1,5 @@
+long
+getrval2(struct tcb *tcp)
+{
+	return sparc_regs.u_regs[U_REG_O1];
+}

linux/sparc/arch_regs.c

diff --git a/linux/sparc/arch_regs.c b/linux/sparc/arch_regs.c
new file mode 100644
index 0000000..ed13029
--- /dev/null
+++ b/linux/sparc/arch_regs.c
@@ -0,0 +1,2 @@
+struct pt_regs sparc_regs; /* not static */
+#define ARCH_REGS_FOR_GETREGS sparc_regs

linux/sparc/get_error.c

diff --git a/linux/sparc/get_error.c b/linux/sparc/get_error.c
new file mode 100644
index 0000000..3531f01
--- /dev/null
+++ b/linux/sparc/get_error.c
@@ -0,0 +1,6 @@
+if (check_errno && sparc_regs.psr & PSR_C) {
+	tcp->u_rval = -1;
+	tcp->u_error = sparc_regs.u_regs[U_REG_O0];
+} else {
+	tcp->u_rval = sparc_regs.u_regs[U_REG_O0];
+}

linux/sparc/get_scno.c

diff --git a/linux/sparc/get_scno.c b/linux/sparc/get_scno.c
new file mode 100644
index 0000000..d083bf4
--- /dev/null
+++ b/linux/sparc/get_scno.c
@@ -0,0 +1,62 @@
+/* Disassemble the syscall trap. */
+/* Retrieve the syscall trap instruction. */
+unsigned long trap;
+
+errno = 0;
+
+#ifdef SPARC64
+trap = ptrace(PTRACE_PEEKTEXT, tcp->pid, (char *)sparc_regs.tpc, 0);
+trap >>= 32;
+#else
+trap = ptrace(PTRACE_PEEKTEXT, tcp->pid, (char *)sparc_regs.pc, 0);
+#endif
+
+if (errno)
+	return -1;
+
+/* Disassemble the trap to see what personality to use. */
+switch (trap) {
+case 0x91d02010:
+	/* Linux/SPARC syscall trap. */
+	update_personality(tcp, 0);
+	break;
+case 0x91d0206d:
+	/* Linux/SPARC64 syscall trap. */
+	update_personality(tcp, 2);
+	break;
+case 0x91d02000:
+	/* SunOS syscall trap. (pers 1) */
+	fprintf(stderr, "syscall: SunOS no support\n");
+	return -1;
+case 0x91d02008:
+	/* Solaris 2.x syscall trap. (per 2) */
+	update_personality(tcp, 1);
+	break;
+case 0x91d02009:
+	/* NetBSD/FreeBSD syscall trap. */
+	fprintf(stderr, "syscall: NetBSD/FreeBSD not supported\n");
+	return -1;
+case 0x91d02027:
+	/* Solaris 2.x gettimeofday */
+	update_personality(tcp, 1);
+	break;
+default:
+#ifdef SPARC64
+	fprintf(stderr, "syscall: unknown syscall trap %08lx %016lx\n", trap, sparc_regs.tpc);
+#else
+	fprintf(stderr, "syscall: unknown syscall trap %08lx %08lx\n", trap, sparc_regs.pc);
+#endif
+	return -1;
+}
+
+/* Extract the system call number from the registers. */
+if (trap == 0x91d02027) {
+	scno = 156;
+} else {
+	scno = sparc_regs.u_regs[U_REG_G1];
+}
+
+if (scno == 0) {
+	scno = sparc_regs.u_regs[U_REG_O0];
+	memmove(&sparc_regs.u_regs[U_REG_O0], &sparc_regs.u_regs[U_REG_O1], 7*sizeof(sparc_regs.u_regs[0]));
+}

linux/sparc/get_syscall_args.c

diff --git a/linux/sparc/get_syscall_args.c b/linux/sparc/get_syscall_args.c
new file mode 100644
index 0000000..14bce8f
--- /dev/null
+++ b/linux/sparc/get_syscall_args.c
@@ -0,0 +1,6 @@
+tcp->u_arg[0] = sparc_regs.u_regs[U_REG_O0 + 0];
+tcp->u_arg[1] = sparc_regs.u_regs[U_REG_O0 + 1];
+tcp->u_arg[2] = sparc_regs.u_regs[U_REG_O0 + 2];
+tcp->u_arg[3] = sparc_regs.u_regs[U_REG_O0 + 3];
+tcp->u_arg[4] = sparc_regs.u_regs[U_REG_O0 + 4];
+tcp->u_arg[5] = sparc_regs.u_regs[U_REG_O0 + 5];

linux/sparc/print_pc.c

diff --git a/linux/sparc/print_pc.c b/linux/sparc/print_pc.c
new file mode 100644
index 0000000..683e3b1
--- /dev/null
+++ b/linux/sparc/print_pc.c
@@ -0,0 +1 @@
+tprintf(fmt, sparc_regs.pc);

linux/sparc64/arch_getrval2.c

diff --git a/linux/sparc64/arch_getrval2.c b/linux/sparc64/arch_getrval2.c
new file mode 100644
index 0000000..81f1556
--- /dev/null
+++ b/linux/sparc64/arch_getrval2.c
@@ -0,0 +1 @@
+#include "sparc/arch_getrval2.c"

linux/sparc64/arch_regs.c

diff --git a/linux/sparc64/arch_regs.c b/linux/sparc64/arch_regs.c
new file mode 100644
index 0000000..db38d88
--- /dev/null
+++ b/linux/sparc64/arch_regs.c
@@ -0,0 +1 @@
+#include "sparc/arch_regs.c"

linux/sparc64/get_error.c

diff --git a/linux/sparc64/get_error.c b/linux/sparc64/get_error.c
new file mode 100644
index 0000000..ee3a7e5
--- /dev/null
+++ b/linux/sparc64/get_error.c
@@ -0,0 +1,6 @@
+if (check_errno && sparc_regs.tstate & 0x1100000000UL) {
+	tcp->u_rval = -1;
+	tcp->u_error = sparc_regs.u_regs[U_REG_O0];
+} else {
+	tcp->u_rval = sparc_regs.u_regs[U_REG_O0];
+}

linux/sparc64/get_scno.c

diff --git a/linux/sparc64/get_scno.c b/linux/sparc64/get_scno.c
new file mode 100644
index 0000000..dbb0afa
--- /dev/null
+++ b/linux/sparc64/get_scno.c
@@ -0,0 +1 @@
+#include "sparc/get_scno.c"

linux/sparc64/get_syscall_args.c

diff --git a/linux/sparc64/get_syscall_args.c b/linux/sparc64/get_syscall_args.c
new file mode 100644
index 0000000..821c331
--- /dev/null
+++ b/linux/sparc64/get_syscall_args.c
@@ -0,0 +1 @@
+#include "sparc/get_syscall_args.c"

linux/sparc64/print_pc.c

diff --git a/linux/sparc64/print_pc.c b/linux/sparc64/print_pc.c
new file mode 100644
index 0000000..11c0ac4
--- /dev/null
+++ b/linux/sparc64/print_pc.c
@@ -0,0 +1 @@
+tprintf(fmt, sparc_regs.tpc);

linux/tile/arch_regs.c

diff --git a/linux/tile/arch_regs.c b/linux/tile/arch_regs.c
new file mode 100644
index 0000000..455077c
--- /dev/null
+++ b/linux/tile/arch_regs.c
@@ -0,0 +1,2 @@
+struct pt_regs tile_regs; /* not static */
+#define ARCH_REGS_FOR_GETREGS tile_regs

linux/tile/get_error.c

diff --git a/linux/tile/get_error.c b/linux/tile/get_error.c
new file mode 100644
index 0000000..8b73dfa
--- /dev/null
+++ b/linux/tile/get_error.c
@@ -0,0 +1,12 @@
+/*
+ * The standard tile calling convention returns the value (or negative
+ * errno) in r0, and zero (or positive errno) in r1.
+ * Until at least kernel 3.8, however, the r1 value is not reflected
+ * in ptregs at this point, so we use r0 here.
+ */
+if (check_errno && is_negated_errno(tile_regs.regs[0])) {
+	tcp->u_rval = -1;
+	tcp->u_error = -tile_regs.regs[0];
+} else {
+	tcp->u_rval = tile_regs.regs[0];
+}

linux/tile/get_scno.c

diff --git a/linux/tile/get_scno.c b/linux/tile/get_scno.c
new file mode 100644
index 0000000..1ae65c9
--- /dev/null
+++ b/linux/tile/get_scno.c
@@ -0,0 +1,17 @@
+unsigned int currpers;
+
+scno = tile_regs.regs[10];
+
+#ifdef __tilepro__
+currpers = 1;
+#else
+# ifndef PT_FLAGS_COMPAT
+#  define PT_FLAGS_COMPAT 0x10000  /* from Linux 3.8 on */
+# endif
+if (tile_regs.flags & PT_FLAGS_COMPAT)
+	currpers = 1;
+else
+	currpers = 0;
+#endif
+
+update_personality(tcp, currpers);

linux/tile/get_syscall_args.c

diff --git a/linux/tile/get_syscall_args.c b/linux/tile/get_syscall_args.c
new file mode 100644
index 0000000..33371d5
--- /dev/null
+++ b/linux/tile/get_syscall_args.c
@@ -0,0 +1,6 @@
+tcp->u_arg[0] = tile_regs.regs[0];
+tcp->u_arg[1] = tile_regs.regs[1];
+tcp->u_arg[2] = tile_regs.regs[2];
+tcp->u_arg[3] = tile_regs.regs[3];
+tcp->u_arg[4] = tile_regs.regs[4];
+tcp->u_arg[5] = tile_regs.regs[5];

linux/tile/print_pc.c

diff --git a/linux/tile/print_pc.c b/linux/tile/print_pc.c
new file mode 100644
index 0000000..8a6894f
--- /dev/null
+++ b/linux/tile/print_pc.c
@@ -0,0 +1 @@
+tprintf(fmt, (unsigned long) tile_regs.pc);

linux/x32/arch_regs.c

diff --git a/linux/x32/arch_regs.c b/linux/x32/arch_regs.c
new file mode 100644
index 0000000..62c70be
--- /dev/null
+++ b/linux/x32/arch_regs.c
@@ -0,0 +1 @@
+#include "x86_64/arch_regs.c"

linux/x32/get_error.c

diff --git a/linux/x32/get_error.c b/linux/x32/get_error.c
new file mode 100644
index 0000000..6c6fbaf
--- /dev/null
+++ b/linux/x32/get_error.c
@@ -0,0 +1 @@
+#include "x86_64/get_error.c"

linux/x32/get_scno.c

diff --git a/linux/x32/get_scno.c b/linux/x32/get_scno.c
new file mode 100644
index 0000000..492863f
--- /dev/null
+++ b/linux/x32/get_scno.c
@@ -0,0 +1 @@
+#include "x86_64/get_scno.c"

linux/x32/get_syscall_args.c

diff --git a/linux/x32/get_syscall_args.c b/linux/x32/get_syscall_args.c
new file mode 100644
index 0000000..6cdb465
--- /dev/null
+++ b/linux/x32/get_syscall_args.c
@@ -0,0 +1 @@
+#include "x86_64/get_syscall_args.c"

linux/x32/print_pc.c

diff --git a/linux/x32/print_pc.c b/linux/x32/print_pc.c
new file mode 100644
index 0000000..13ccdc2
--- /dev/null
+++ b/linux/x32/print_pc.c
@@ -0,0 +1 @@
+#include "x86_64/print_pc.c"

linux/x86_64/arch_regs.c

diff --git a/linux/x86_64/arch_regs.c b/linux/x86_64/arch_regs.c
new file mode 100644
index 0000000..1925dad
--- /dev/null
+++ b/linux/x86_64/arch_regs.c
@@ -0,0 +1,40 @@
+/*
+ * On i386, pt_regs and user_regs_struct are the same,
+ * but on 64 bit x86, user_regs_struct has six more fields:
+ * fs_base, gs_base, ds, es, fs, gs.
+ * PTRACE_GETREGS fills them too, so struct pt_regs would overflow.
+ */
+struct i386_user_regs_struct {
+	uint32_t ebx;
+	uint32_t ecx;
+	uint32_t edx;
+	uint32_t esi;
+	uint32_t edi;
+	uint32_t ebp;
+	uint32_t eax;
+	uint32_t xds;
+	uint32_t xes;
+	uint32_t xfs;
+	uint32_t xgs;
+	uint32_t orig_eax;
+	uint32_t eip;
+	uint32_t xcs;
+	uint32_t eflags;
+	uint32_t esp;
+	uint32_t xss;
+};
+static union {
+	struct user_regs_struct      x86_64_r;
+	struct i386_user_regs_struct i386_r;
+} x86_regs_union;
+#define x86_64_regs x86_regs_union.x86_64_r
+#define i386_regs   x86_regs_union.i386_r
+
+uint32_t *const i386_esp_ptr = &i386_regs.esp;
+uint64_t *const x86_64_rsp_ptr = (uint64_t *) &x86_64_regs.rsp;
+static struct iovec x86_io = {
+	.iov_base = &x86_regs_union
+};
+
+#define ARCH_REGS_FOR_GETREGSET x86_regs_union
+#define ARCH_IOVEC_FOR_GETREGSET x86_io

linux/x86_64/get_error.c

diff --git a/linux/x86_64/get_error.c b/linux/x86_64/get_error.c
new file mode 100644
index 0000000..29b7816
--- /dev/null
+++ b/linux/x86_64/get_error.c
@@ -0,0 +1,23 @@
+/*
+ * In X32, return value is 64-bit (llseek uses one).
+ * Using merely "long rax" would not work.
+ */
+long long rax;
+
+if (x86_io.iov_len == sizeof(i386_regs)) {
+	/* Sign extend from 32 bits */
+	rax = (int32_t) i386_regs.eax;
+} else {
+	rax = x86_64_regs.rax;
+}
+
+if (check_errno && is_negated_errno(rax)) {
+	tcp->u_rval = -1;
+	tcp->u_error = -rax;
+} else {
+	tcp->u_rval = rax;
+# ifdef X32
+	/* tcp->u_rval contains a truncated value */
+	tcp->u_lrval = rax;
+# endif
+}

linux/x86_64/get_scno.c

diff --git a/linux/x86_64/get_scno.c b/linux/x86_64/get_scno.c
new file mode 100644
index 0000000..2eb0d5d
--- /dev/null
+++ b/linux/x86_64/get_scno.c
@@ -0,0 +1,107 @@
+#ifndef __X32_SYSCALL_BIT
+# define __X32_SYSCALL_BIT	0x40000000
+#endif
+
+unsigned int currpers;
+
+#if 1
+/* GETREGSET of NT_PRSTATUS tells us regset size,
+ * which unambiguously detects i386.
+ *
+ * Linux kernel distinguishes x86-64 and x32 processes
+ * solely by looking at __X32_SYSCALL_BIT:
+ * arch/x86/include/asm/compat.h::is_x32_task():
+ * if (task_pt_regs(current)->orig_ax & __X32_SYSCALL_BIT)
+ *         return true;
+ */
+if (x86_io.iov_len == sizeof(i386_regs)) {
+	scno = i386_regs.orig_eax;
+	currpers = 1;
+} else {
+	scno = x86_64_regs.orig_rax;
+	currpers = 0;
+	if (scno & __X32_SYSCALL_BIT) {
+		/*
+		 * Syscall number -1 requires special treatment:
+		 * it might be a side effect of SECCOMP_RET_ERRNO
+		 * filtering that sets orig_rax to -1
+		 * in some versions of linux kernel.
+		 * If that is the case, then
+		 * __X32_SYSCALL_BIT logic does not apply.
+		 */
+		if ((long long) x86_64_regs.orig_rax != -1) {
+			scno -= __X32_SYSCALL_BIT;
+			currpers = 2;
+		} else {
+# ifdef X32
+			currpers = 2;
+# endif
+		}
+	}
+}
+
+#elif 0
+/* cs = 0x33 for long mode (native 64 bit and x32)
+ * cs = 0x23 for compatibility mode (32 bit)
+ * ds = 0x2b for x32 mode (x86-64 in 32 bit)
+ */
+scno = x86_64_regs.orig_rax;
+switch (x86_64_regs.cs) {
+	case 0x23: currpers = 1; break;
+	case 0x33:
+		if (x86_64_regs.ds == 0x2b) {
+			currpers = 2;
+			scno &= ~__X32_SYSCALL_BIT;
+		} else
+			currpers = 0;
+		break;
+	default:
+		fprintf(stderr, "Unknown value CS=0x%08X while "
+			 "detecting personality of process "
+			 "PID=%d\n", (int)x86_64_regs.cs, tcp->pid);
+		currpers = current_personality;
+		break;
+}
+#elif 0
+/* This version analyzes the opcode of a syscall instruction.
+ * (int 0x80 on i386 vs. syscall on x86-64)
+ * It works, but is too complicated, and strictly speaking, unreliable.
+ */
+unsigned long call, rip = x86_64_regs.rip;
+/* sizeof(syscall) == sizeof(int 0x80) == 2 */
+rip -= 2;
+errno = 0;
+call = ptrace(PTRACE_PEEKTEXT, tcp->pid, (char *)rip, (char *)0);
+if (errno)
+	fprintf(stderr, "ptrace_peektext failed: %s\n",
+			strerror(errno));
+switch (call & 0xffff) {
+	/* x86-64: syscall = 0x0f 0x05 */
+	case 0x050f: currpers = 0; break;
+	/* i386: int 0x80 = 0xcd 0x80 */
+	case 0x80cd: currpers = 1; break;
+	default:
+		currpers = current_personality;
+		fprintf(stderr,
+			"Unknown syscall opcode (0x%04X) while "
+			"detecting personality of process "
+			"PID=%d\n", (int)call, tcp->pid);
+		break;
+}
+#endif
+
+#ifdef X32
+/* If we are built for a x32 system, then personality 0 is x32
+ * (not x86_64), and stracing of x86_64 apps is not supported.
+ * Stracing of i386 apps is still supported.
+ */
+if (currpers == 0) {
+	fprintf(stderr, "syscall_%lu(...) in unsupported "
+			"64-bit mode of process PID=%d\n",
+		scno, tcp->pid);
+	return 0;
+}
+currpers &= ~2; /* map 2,1 to 0,1 */
+#endif /* X32 */
+
+update_personality(tcp, currpers);

linux/x86_64/get_syscall_args.c

diff --git a/linux/x86_64/get_syscall_args.c b/linux/x86_64/get_syscall_args.c
new file mode 100644
index 0000000..0ccecdf
--- /dev/null
+++ b/linux/x86_64/get_syscall_args.c
@@ -0,0 +1,29 @@
+if (x86_io.iov_len != sizeof(i386_regs)) {
+	/* x86-64 or x32 ABI */
+	tcp->u_arg[0] = x86_64_regs.rdi;
+	tcp->u_arg[1] = x86_64_regs.rsi;
+	tcp->u_arg[2] = x86_64_regs.rdx;
+	tcp->u_arg[3] = x86_64_regs.r10;
+	tcp->u_arg[4] = x86_64_regs.r8;
+	tcp->u_arg[5] = x86_64_regs.r9;
+#ifdef X32
+	tcp->ext_arg[0] = x86_64_regs.rdi;
+	tcp->ext_arg[1] = x86_64_regs.rsi;
+	tcp->ext_arg[2] = x86_64_regs.rdx;
+	tcp->ext_arg[3] = x86_64_regs.r10;
+	tcp->ext_arg[4] = x86_64_regs.r8;
+	tcp->ext_arg[5] = x86_64_regs.r9;
+#endif
+} else {
+	/* i386 ABI */
+	/* Zero-extend from 32 bits */
+	/* Use widen_to_long(tcp->u_arg[N]) in syscall handlers
+	 * if you need to use *sign-extended* parameter.
+	 */
+	tcp->u_arg[0] = (long)(uint32_t)i386_regs.ebx;
+	tcp->u_arg[1] = (long)(uint32_t)i386_regs.ecx;
+	tcp->u_arg[2] = (long)(uint32_t)i386_regs.edx;
+	tcp->u_arg[3] = (long)(uint32_t)i386_regs.esi;
+	tcp->u_arg[4] = (long)(uint32_t)i386_regs.edi;
+	tcp->u_arg[5] = (long)(uint32_t)i386_regs.ebp;
+}

linux/x86_64/getregs_old.c

diff --git a/linux/x86_64/getregs_old.c b/linux/x86_64/getregs_old.c
new file mode 100644
index 0000000..6911eee
--- /dev/null
+++ b/linux/x86_64/getregs_old.c
@@ -0,0 +1,39 @@
+/*
+ * PTRACE_GETREGSET was added to the kernel in v2.6.25,
+ * a PTRACE_GETREGS based fallback is provided for old kernels.
+ */
+static void
+getregs_old(pid_t pid)
+{
+	/* Use old method, with unreliable heuristical detection of 32-bitness. */
+	get_regs_error = ptrace(PTRACE_GETREGS, pid, NULL, &x86_64_regs);
+	if (get_regs_error)
+		return;
+
+	if (x86_64_regs.cs == 0x23) {
+		x86_io.iov_len = sizeof(i386_regs);
+		/*
+		 * The order is important: i386_regs and x86_64_regs
+		 * are overlaid in memory!
+		 */
+		i386_regs.ebx = x86_64_regs.rbx;
+		i386_regs.ecx = x86_64_regs.rcx;
+		i386_regs.edx = x86_64_regs.rdx;
+		i386_regs.esi = x86_64_regs.rsi;
+		i386_regs.edi = x86_64_regs.rdi;
+		i386_regs.ebp = x86_64_regs.rbp;
+		i386_regs.eax = x86_64_regs.rax;
+		/* i386_regs.xds = x86_64_regs.ds; unused by strace */
+		/* i386_regs.xes = x86_64_regs.es; ditto... */
+		/* i386_regs.xfs = x86_64_regs.fs; */
+		/* i386_regs.xgs = x86_64_regs.gs; */
+		i386_regs.orig_eax = x86_64_regs.orig_rax;
+		i386_regs.eip = x86_64_regs.rip;
+		/* i386_regs.xcs = x86_64_regs.cs; */
+		/* i386_regs.eflags = x86_64_regs.eflags; */
+		i386_regs.esp = x86_64_regs.rsp;
+		/* i386_regs.xss = x86_64_regs.ss; */
+	} else {
+		x86_io.iov_len = sizeof(x86_64_regs);
+	}
+}

linux/x86_64/print_pc.c

diff --git a/linux/x86_64/print_pc.c b/linux/x86_64/print_pc.c
new file mode 100644
index 0000000..71b080a
--- /dev/null
+++ b/linux/x86_64/print_pc.c
@@ -0,0 +1,4 @@
+if (x86_io.iov_len == sizeof(i386_regs))
+	tprintf(fmt, (unsigned long) i386_regs.eip);
+else
+	tprintf(fmt, (unsigned long) x86_64_regs.rip);

linux/xtensa/arch_regs.c

diff --git a/linux/xtensa/arch_regs.c b/linux/xtensa/arch_regs.c
new file mode 100644
index 0000000..1114cab
--- /dev/null
+++ b/linux/xtensa/arch_regs.c
@@ -0,0 +1 @@
+static long xtensa_a2;

linux/xtensa/get_error.c

diff --git a/linux/xtensa/get_error.c b/linux/xtensa/get_error.c
new file mode 100644
index 0000000..6efbb6e
--- /dev/null
+++ b/linux/xtensa/get_error.c
@@ -0,0 +1,6 @@
+if (check_errno && is_negated_errno(xtensa_a2)) {
+	tcp->u_rval = -1;
+	tcp->u_error = -xtensa_a2;
+} else {
+	tcp->u_rval = xtensa_a2;
+}

linux/xtensa/get_scno.c

diff --git a/linux/xtensa/get_scno.c b/linux/xtensa/get_scno.c
new file mode 100644
index 0000000..4299163
--- /dev/null
+++ b/linux/xtensa/get_scno.c
@@ -0,0 +1,2 @@
+if (upeek(tcp->pid, SYSCALL_NR, &scno) < 0)
+	return -1;

linux/xtensa/get_syscall_args.c

diff --git a/linux/xtensa/get_syscall_args.c b/linux/xtensa/get_syscall_args.c
new file mode 100644
index 0000000..dca8788
--- /dev/null
+++ b/linux/xtensa/get_syscall_args.c
@@ -0,0 +1,7 @@
+/* arg0: a6, arg1: a3, arg2: a4, arg3: a5, arg4: a8, arg5: a9 */
+static const int xtensaregs[MAX_ARGS] = { 6, 3, 4, 5, 8, 9 };
+unsigned int i;
+
+for (i = 0; i < tcp->s_ent->nargs; ++i)
+	if (upeek(tcp->pid, REG_A_BASE + xtensaregs[i], &tcp->u_arg[i]) < 0)
+		return -1;

linux/xtensa/get_syscall_result.c

diff --git a/linux/xtensa/get_syscall_result.c b/linux/xtensa/get_syscall_result.c
new file mode 100644
index 0000000..0d2e697
--- /dev/null
+++ b/linux/xtensa/get_syscall_result.c
@@ -0,0 +1,2 @@
+if (upeek(tcp->pid, REG_A_BASE + 2, &xtensa_a2) < 0)
+	return -1;

linux/xtensa/print_pc.c

diff --git a/linux/xtensa/print_pc.c b/linux/xtensa/print_pc.c
new file mode 100644
index 0000000..c0232e5
--- /dev/null
+++ b/linux/xtensa/print_pc.c
@@ -0,0 +1,6 @@
+long pc;
+if (upeek(tcp->pid, REG_PC, &pc) < 0) {
+	PRINTBADPC;
+	return;
+}
+tprintf(fmt, pc);

syscall.c

diff --git a/syscall.c b/syscall.c
index 3c5f4ba..435dc80 100644
--- a/syscall.c
+++ b/syscall.c
@@ -1127,166 +1127,10 @@
 	return val >= max;
 }
 
-
-#if defined(I386)
-static struct user_regs_struct i386_regs;
-long *const i386_esp_ptr = &i386_regs.esp;
-# define ARCH_REGS_FOR_GETREGS i386_regs
-#elif defined(X86_64) || defined(X32)
-/*
- * On i386, pt_regs and user_regs_struct are the same,
- * but on 64 bit x86, user_regs_struct has six more fields:
- * fs_base, gs_base, ds, es, fs, gs.
- * PTRACE_GETREGS fills them too, so struct pt_regs would overflow.
- */
-struct i386_user_regs_struct {
-	uint32_t ebx;
-	uint32_t ecx;
-	uint32_t edx;
-	uint32_t esi;
-	uint32_t edi;
-	uint32_t ebp;
-	uint32_t eax;
-	uint32_t xds;
-	uint32_t xes;
-	uint32_t xfs;
-	uint32_t xgs;
-	uint32_t orig_eax;
-	uint32_t eip;
-	uint32_t xcs;
-	uint32_t eflags;
-	uint32_t esp;
-	uint32_t xss;
-};
-static union {
-	struct user_regs_struct      x86_64_r;
-	struct i386_user_regs_struct i386_r;
-} x86_regs_union;
-# define x86_64_regs x86_regs_union.x86_64_r
-# define i386_regs   x86_regs_union.i386_r
-uint32_t *const i386_esp_ptr = &i386_regs.esp;
-uint64_t *const x86_64_rsp_ptr = (uint64_t *) &x86_64_regs.rsp;
-static struct iovec x86_io = {
-	.iov_base = &x86_regs_union
-};
-# define ARCH_REGS_FOR_GETREGSET x86_regs_union
-# define ARCH_IOVEC_FOR_GETREGSET x86_io
-#elif defined(IA64)
-static struct pt_all_user_regs ia64_regs;
-unsigned long *const ia64_frame_ptr = &ia64_regs.gr[12];
-# define IA64_PSR_IS	((long)1 << 34)
-# define ia64_ia32mode	(ia64_regs.cr_ipsr & IA64_PSR_IS)
-# define ARCH_REGS_FOR_GETREGS ia64_regs
-#elif defined(POWERPC)
-struct pt_regs ppc_regs; /* not static */
-# define ARCH_REGS_FOR_GETREGS ppc_regs
-#elif defined(M68K)
-static long m68k_d0;
-#elif defined(BFIN)
-static long bfin_r0;
-#elif defined(ARM)
-static struct pt_regs arm_regs;
-long *const arm_sp_ptr = &arm_regs.ARM_sp;
-# define ARCH_REGS_FOR_GETREGS arm_regs
-#elif defined(AARCH64)
-struct arm_pt_regs {
-        int uregs[18];
-};
-# define ARM_cpsr       uregs[16]
-# define ARM_pc         uregs[15]
-# define ARM_lr         uregs[14]
-# define ARM_sp         uregs[13]
-# define ARM_ip         uregs[12]
-# define ARM_fp         uregs[11]
-# define ARM_r10        uregs[10]
-# define ARM_r9         uregs[9]
-# define ARM_r8         uregs[8]
-# define ARM_r7         uregs[7]
-# define ARM_r6         uregs[6]
-# define ARM_r5         uregs[5]
-# define ARM_r4         uregs[4]
-# define ARM_r3         uregs[3]
-# define ARM_r2         uregs[2]
-# define ARM_r1         uregs[1]
-# define ARM_r0         uregs[0]
-# define ARM_ORIG_r0    uregs[17]
-static union {
-	struct user_pt_regs aarch64_r;
-	struct arm_pt_regs  arm_r;
-} arm_regs_union;
-# define aarch64_regs arm_regs_union.aarch64_r
-# define arm_regs     arm_regs_union.arm_r
-uint64_t *const aarch64_sp_ptr = (uint64_t *) &aarch64_regs.sp;
-uint32_t *const arm_sp_ptr = (uint32_t *) &arm_regs.ARM_sp;
-static struct iovec aarch64_io = {
-	.iov_base = &arm_regs_union
-};
-# define ARCH_REGS_FOR_GETREGSET arm_regs_union
-# define ARCH_IOVEC_FOR_GETREGSET aarch64_io
-#elif defined(ALPHA)
-static long alpha_r0;
-static long alpha_a3;
-#elif defined(AVR32)
-static struct pt_regs avr32_regs;
-# define ARCH_REGS_FOR_GETREGS avr32_regs
-#elif defined(SPARC) || defined(SPARC64)
-struct pt_regs sparc_regs; /* not static */
-# define ARCH_REGS_FOR_GETREGS sparc_regs
-#elif defined(MIPS)
-struct mips_regs mips_regs; /* not static */
-/* PTRACE_GETREGS on MIPS is available since linux v2.6.15. */
-# define ARCH_REGS_FOR_GETREGS mips_regs
-#elif defined(S390) || defined(S390X)
-/* PTRACE_GETREGSET on S390 is available since linux v2.6.27. */
-static struct user_regs_struct s390_regset;
-unsigned long *const s390_frame_ptr = &s390_regset.gprs[15];
-# define ARCH_REGS_FOR_GETREGSET s390_regset
-#elif defined(HPPA)
-static long hppa_r28;
-#elif defined(SH)
-static long sh_r0;
-#elif defined(SH64)
-static long sh64_r9;
-#elif defined(CRISV10) || defined(CRISV32)
-static long cris_r10;
-#elif defined(TILE)
-struct pt_regs tile_regs; /* not static */
-# define ARCH_REGS_FOR_GETREGS tile_regs
-#elif defined(MICROBLAZE)
-static long microblaze_r3;
-#elif defined(OR1K)
-static struct user_regs_struct or1k_regs;
-# define ARCH_REGS_FOR_GETREGSET or1k_regs
-#elif defined(METAG)
-static struct user_gp_regs metag_regs;
-# define ARCH_REGS_FOR_GETREGSET metag_regs
-#elif defined(XTENSA)
-static long xtensa_a2;
-# elif defined(ARC)
-static struct user_regs_struct arc_regs;
-# define ARCH_REGS_FOR_GETREGSET arc_regs
-#endif
+#include "arch_regs.c"
 
 #ifdef HAVE_GETRVAL2
-long
-getrval2(struct tcb *tcp)
-{
-	long val;
-
-# if defined(SPARC) || defined(SPARC64)
-	val = sparc_regs.u_regs[U_REG_O1];
-# elif defined(SH)
-	if (upeek(tcp->pid, 4*(REG_REG0+1), &val) < 0)
-		return -1;
-# elif defined ALPHA
-	if (upeek(tcp->pid, 20, &val) < 0)
-		return -1;
-# elif defined(IA64)
-	val = ia64_regs.gr[9];
-# endif
-
-	return val;
-}
+# include "arch_getrval2.c"
 #endif
 
 void
@@ -1317,189 +1161,11 @@
 		return;
 	}
 
-#if defined(I386)
-	tprintf(fmt, i386_regs.eip);
-#elif defined(X86_64) || defined(X32)
-	if (x86_io.iov_len == sizeof(i386_regs))
-		tprintf(fmt, (unsigned long) i386_regs.eip);
-	else
-		tprintf(fmt, (unsigned long) x86_64_regs.rip);
-#elif defined(S390) || defined(S390X)
-	tprintf(fmt, s390_regset.psw.addr);
-#elif defined(IA64)
-	tprintf(fmt, ia64_regs.br[0]);
-#elif defined(POWERPC)
-	tprintf(fmt, ppc_regs.nip);
-#elif defined(M68K)
-	long pc;
-	if (upeek(tcp->pid, 4*PT_PC, &pc) < 0) {
-		PRINTBADPC;
-		return;
-	}
-	tprintf(fmt, pc);
-#elif defined(ALPHA)
-	long pc;
-	if (upeek(tcp->pid, REG_PC, &pc) < 0) {
-		PRINTBADPC;
-		return;
-	}
-	tprintf(fmt, pc);
-#elif defined(SPARC)
-	tprintf(fmt, sparc_regs.pc);
-#elif defined(SPARC64)
-	tprintf(fmt, sparc_regs.tpc);
-#elif defined(HPPA)
-	long pc;
-	if (upeek(tcp->pid, PT_IAOQ0, &pc) < 0) {
-		PRINTBADPC;
-		return;
-	}
-	tprintf(fmt, pc);
-#elif defined MIPS
-	tprintf(fmt, (unsigned long) mips_REG_EPC);
-#elif defined(SH)
-	long pc;
-	if (upeek(tcp->pid, 4*REG_PC, &pc) < 0) {
-		PRINTBADPC;
-		return;
-	}
-	tprintf(fmt, pc);
-#elif defined(SH64)
-	long pc;
-	if (upeek(tcp->pid, REG_PC, &pc) < 0) {
-		PRINTBADPC;
-		return;
-	}
-	tprintf(fmt, pc);
-#elif defined(AARCH64)
-	if (aarch64_io.iov_len == sizeof(arm_regs))
-		tprintf(fmt, (unsigned long) arm_regs.ARM_pc);
-	else
-		tprintf(fmt, (unsigned long) aarch64_regs.pc);
-#elif defined(ARM)
-	tprintf(fmt, arm_regs.ARM_pc);
-#elif defined(AVR32)
-	tprintf(fmt, avr32_regs.pc);
-#elif defined(BFIN)
-	long pc;
-	if (upeek(tcp->pid, PT_PC, &pc) < 0) {
-		PRINTBADPC;
-		return;
-	}
-	tprintf(fmt, pc);
-#elif defined(CRISV10)
-	long pc;
-	if (upeek(tcp->pid, 4*PT_IRP, &pc) < 0) {
-		PRINTBADPC;
-		return;
-	}
-	tprintf(fmt, pc);
-#elif defined(CRISV32)
-	long pc;
-	if (upeek(tcp->pid, 4*PT_ERP, &pc) < 0) {
-		PRINTBADPC;
-		return;
-	}
-	tprintf(fmt, pc);
-#elif defined(TILE)
-	tprintf(fmt, (unsigned long) tile_regs.pc);
-#elif defined(OR1K)
-	tprintf(fmt, or1k_regs.pc);
-#elif defined(METAG)
-	tprintf(fmt, metag_regs.pc);
-#elif defined(XTENSA)
-	long pc;
-	if (upeek(tcp->pid, REG_PC, &pc) < 0) {
-		PRINTBADPC;
-		return;
-	}
-	tprintf(fmt, pc);
-#elif defined(ARC)
-	tprintf(fmt, arc_regs.efa);
-#else
-# warning print_pc is not implemented for this architecture
-	PRINTBADPC;
-#endif /* architecture */
+#include "print_pc.c"
 }
 
-#ifdef X86_64
-/*
- * PTRACE_GETREGSET was added to the kernel in v2.6.25,
- * a PTRACE_GETREGS based fallback is provided for old kernels.
- */
-static void
-x86_64_getregs_old(pid_t pid)
-{
-	/* Use old method, with unreliable heuristical detection of 32-bitness. */
-	get_regs_error = ptrace(PTRACE_GETREGS, pid, NULL, &x86_64_regs);
-	if (get_regs_error)
-		return;
-
-	if (x86_64_regs.cs == 0x23) {
-		x86_io.iov_len = sizeof(i386_regs);
-		/*
-		 * The order is important: i386_regs and x86_64_regs
-		 * are overlaid in memory!
-		 */
-		i386_regs.ebx = x86_64_regs.rbx;
-		i386_regs.ecx = x86_64_regs.rcx;
-		i386_regs.edx = x86_64_regs.rdx;
-		i386_regs.esi = x86_64_regs.rsi;
-		i386_regs.edi = x86_64_regs.rdi;
-		i386_regs.ebp = x86_64_regs.rbp;
-		i386_regs.eax = x86_64_regs.rax;
-		/* i386_regs.xds = x86_64_regs.ds; unused by strace */
-		/* i386_regs.xes = x86_64_regs.es; ditto... */
-		/* i386_regs.xfs = x86_64_regs.fs; */
-		/* i386_regs.xgs = x86_64_regs.gs; */
-		i386_regs.orig_eax = x86_64_regs.orig_rax;
-		i386_regs.eip = x86_64_regs.rip;
-		/* i386_regs.xcs = x86_64_regs.cs; */
-		/* i386_regs.eflags = x86_64_regs.eflags; */
-		i386_regs.esp = x86_64_regs.rsp;
-		/* i386_regs.xss = x86_64_regs.ss; */
-	} else {
-		x86_io.iov_len = sizeof(x86_64_regs);
-	}
-}
-#endif /* X86_64 */
-
-#ifdef POWERPC
-/*
- * PTRACE_GETREGS was added to the PowerPC kernel in v2.6.23,
- * we provide a slow fallback for old kernels.
- */
-static int
-powerpc_getregs_old(pid_t pid)
-{
-	int i;
-	long r;
-
-	if (iflag) {
-		r = upeek(pid, sizeof(long) * PT_NIP, (long *)&ppc_regs.nip);
-		if (r)
-			goto out;
-	}
-#ifdef POWERPC64 /* else we never use it */
-	r = upeek(pid, sizeof(long) * PT_MSR, (long *)&ppc_regs.msr);
-	if (r)
-		goto out;
-#endif
-	r = upeek(pid, sizeof(long) * PT_CCR, (long *)&ppc_regs.ccr);
-	if (r)
-		goto out;
-	r = upeek(pid, sizeof(long) * PT_ORIG_R3, (long *)&ppc_regs.orig_gpr3);
-	if (r)
-		goto out;
-	for (i = 0; i <= 8; i++) {
-		r = upeek(pid, sizeof(long) * (PT_R0 + i),
-			  (long *)&ppc_regs.gpr[i]);
-		if (r)
-			goto out;
-	}
- out:
-	return r;
-}
+#if defined X86_64 || defined POWERPC
+# include "getregs_old.c"
 #endif
 
 #if defined ARCH_REGS_FOR_GETREGSET
@@ -1543,7 +1209,7 @@
 			return;
 		getregset_support = -1;
 	}
-	x86_64_getregs_old(pid);
+	getregs_old(pid);
 # else /* !X86_64 */
 	/* Assume that PTRACE_GETREGSET works. */
 	get_regs_error = get_regset(pid);
@@ -1560,7 +1226,7 @@
 	if (get_regs_error && errno == EIO) {
 		old_kernel = 1;
  old:
-		get_regs_error = powerpc_getregs_old(pid);
+		get_regs_error = getregs_old(pid);
 	}
 # else
 	/* Assume that PTRACE_GETREGS works. */
@@ -1587,337 +1253,7 @@
 
 	long scno = 0;
 
-#if defined(S390) || defined(S390X)
-	scno = s390_regset.gprs[2];
-#elif defined(POWERPC)
-	scno = ppc_regs.gpr[0];
-# ifdef POWERPC64
-	unsigned int currpers;
-
-	/*
-	 * Check for 64/32 bit mode.
-	 * Embedded implementations covered by Book E extension of PPC use
-	 * bit 0 (CM) of 32-bit Machine state register (MSR).
-	 * Other implementations use bit 0 (SF) of 64-bit MSR.
-	 */
-	currpers = (ppc_regs.msr & 0x8000000080000000) ? 0 : 1;
-	update_personality(tcp, currpers);
-# endif
-#elif defined(AVR32)
-	scno = avr32_regs.r8;
-#elif defined(BFIN)
-	if (upeek(tcp->pid, PT_ORIG_P0, &scno))
-		return -1;
-#elif defined(I386)
-	scno = i386_regs.orig_eax;
-#elif defined(X86_64) || defined(X32)
-# ifndef __X32_SYSCALL_BIT
-#  define __X32_SYSCALL_BIT	0x40000000
-# endif
-	unsigned int currpers;
-# if 1
-	/* GETREGSET of NT_PRSTATUS tells us regset size,
-	 * which unambiguously detects i386.
-	 *
-	 * Linux kernel distinguishes x86-64 and x32 processes
-	 * solely by looking at __X32_SYSCALL_BIT:
-	 * arch/x86/include/asm/compat.h::is_x32_task():
-	 * if (task_pt_regs(current)->orig_ax & __X32_SYSCALL_BIT)
-	 *         return true;
-	 */
-	if (x86_io.iov_len == sizeof(i386_regs)) {
-		scno = i386_regs.orig_eax;
-		currpers = 1;
-	} else {
-		scno = x86_64_regs.orig_rax;
-		currpers = 0;
-		if (scno & __X32_SYSCALL_BIT) {
-			/*
-			 * Syscall number -1 requires special treatment:
-			 * it might be a side effect of SECCOMP_RET_ERRNO
-			 * filtering that sets orig_rax to -1
-			 * in some versions of linux kernel.
-			 * If that is the case, then
-			 * __X32_SYSCALL_BIT logic does not apply.
-			 */
-			if ((long long) x86_64_regs.orig_rax != -1) {
-				scno -= __X32_SYSCALL_BIT;
-				currpers = 2;
-			} else {
-#  ifdef X32
-				currpers = 2;
-#  endif
-			}
-		}
-	}
-# elif 0
-	/* cs = 0x33 for long mode (native 64 bit and x32)
-	 * cs = 0x23 for compatibility mode (32 bit)
-	 * ds = 0x2b for x32 mode (x86-64 in 32 bit)
-	 */
-	scno = x86_64_regs.orig_rax;
-	switch (x86_64_regs.cs) {
-		case 0x23: currpers = 1; break;
-		case 0x33:
-			if (x86_64_regs.ds == 0x2b) {
-				currpers = 2;
-				scno &= ~__X32_SYSCALL_BIT;
-			} else
-				currpers = 0;
-			break;
-		default:
-			fprintf(stderr, "Unknown value CS=0x%08X while "
-				 "detecting personality of process "
-				 "PID=%d\n", (int)x86_64_regs.cs, tcp->pid);
-			currpers = current_personality;
-			break;
-	}
-# elif 0
-	/* This version analyzes the opcode of a syscall instruction.
-	 * (int 0x80 on i386 vs. syscall on x86-64)
-	 * It works, but is too complicated, and strictly speaking, unreliable.
-	 */
-	unsigned long call, rip = x86_64_regs.rip;
-	/* sizeof(syscall) == sizeof(int 0x80) == 2 */
-	rip -= 2;
-	errno = 0;
-	call = ptrace(PTRACE_PEEKTEXT, tcp->pid, (char *)rip, (char *)0);
-	if (errno)
-		fprintf(stderr, "ptrace_peektext failed: %s\n",
-				strerror(errno));
-	switch (call & 0xffff) {
-		/* x86-64: syscall = 0x0f 0x05 */
-		case 0x050f: currpers = 0; break;
-		/* i386: int 0x80 = 0xcd 0x80 */
-		case 0x80cd: currpers = 1; break;
-		default:
-			currpers = current_personality;
-			fprintf(stderr,
-				"Unknown syscall opcode (0x%04X) while "
-				"detecting personality of process "
-				"PID=%d\n", (int)call, tcp->pid);
-			break;
-	}
-# endif
-
-# ifdef X32
-	/* If we are built for a x32 system, then personality 0 is x32
-	 * (not x86_64), and stracing of x86_64 apps is not supported.
-	 * Stracing of i386 apps is still supported.
-	 */
-	if (currpers == 0) {
-		fprintf(stderr, "syscall_%lu(...) in unsupported "
-				"64-bit mode of process PID=%d\n",
-			scno, tcp->pid);
-		return 0;
-	}
-	currpers &= ~2; /* map 2,1 to 0,1 */
-# endif
-	update_personality(tcp, currpers);
-#elif defined(IA64)
-	if (ia64_ia32mode) {
-		scno = ia64_regs.gr[0];
-	} else {
-		scno = ia64_regs.gr[15];
-	}
-#elif defined(AARCH64)
-	switch (aarch64_io.iov_len) {
-		case sizeof(aarch64_regs):
-			/* We are in 64-bit mode */
-			scno = aarch64_regs.regs[8];
-			update_personality(tcp, 1);
-			break;
-		case sizeof(arm_regs):
-			/* We are in 32-bit mode */
-			/* Note: we don't support OABI, unlike 32-bit ARM build */
-			scno = arm_regs.ARM_r7;
-			scno = shuffle_scno(scno);
-			update_personality(tcp, 0);
-			break;
-	}
-#elif defined(ARM)
-	if (arm_regs.ARM_ip != 0) {
-		/* It is not a syscall entry */
-		fprintf(stderr, "pid %d stray syscall exit\n", tcp->pid);
-		tcp->flags |= TCB_INSYSCALL;
-		return 0;
-	}
-	/* Note: we support only 32-bit CPUs, not 26-bit */
-
-# if !defined(__ARM_EABI__) || ENABLE_ARM_OABI
-	if (arm_regs.ARM_cpsr & 0x20)
-		/* Thumb mode */
-		goto scno_in_r7;
-	/* ARM mode */
-	/* Check EABI/OABI by examining SVC insn's low 24 bits */
-	errno = 0;
-	scno = ptrace(PTRACE_PEEKTEXT, tcp->pid, (void *)(arm_regs.ARM_pc - 4), NULL);
-	if (errno)
-		return -1;
-	/* EABI syscall convention? */
-	if ((unsigned long) scno != 0xef000000) {
-		/* No, it's OABI */
-		if ((scno & 0x0ff00000) != 0x0f900000) {
-			fprintf(stderr, "pid %d unknown syscall trap 0x%08lx\n",
-				tcp->pid, scno);
-			return -1;
-		}
-		/* Fixup the syscall number */
-		scno &= 0x000fffff;
-	} else {
- scno_in_r7:
-		scno = arm_regs.ARM_r7;
-	}
-# else /* __ARM_EABI__ || !ENABLE_ARM_OABI */
-	scno = arm_regs.ARM_r7;
-# endif
-	scno = shuffle_scno(scno);
-#elif defined(M68K)
-	if (upeek(tcp->pid, 4*PT_ORIG_D0, &scno) < 0)
-		return -1;
-#elif defined(MIPS)
-	scno = mips_REG_V0;
-
-	if (!SCNO_IN_RANGE(scno)) {
-		if (mips_REG_A3 == 0 || mips_REG_A3 == (uint64_t) -1) {
-			if (debug_flag)
-				fprintf(stderr, "stray syscall exit: v0 = %ld\n", scno);
-			return 0;
-		}
-	}
-#elif defined(ALPHA)
-	if (upeek(tcp->pid, REG_A3, &alpha_a3) < 0)
-		return -1;
-	if (upeek(tcp->pid, REG_R0, &scno) < 0)
-		return -1;
-
-	/*
-	 * Do some sanity checks to figure out if it's
-	 * really a syscall entry
-	 */
-	if (!SCNO_IN_RANGE(scno)) {
-		if (alpha_a3 == 0 || alpha_a3 == -1) {
-			if (debug_flag)
-				fprintf(stderr, "stray syscall exit: r0 = %ld\n", scno);
-			return 0;
-		}
-	}
-#elif defined(SPARC) || defined(SPARC64)
-	/* Disassemble the syscall trap. */
-	/* Retrieve the syscall trap instruction. */
-	unsigned long trap;
-	errno = 0;
-# if defined(SPARC64)
-	trap = ptrace(PTRACE_PEEKTEXT, tcp->pid, (char *)sparc_regs.tpc, 0);
-	trap >>= 32;
-# else
-	trap = ptrace(PTRACE_PEEKTEXT, tcp->pid, (char *)sparc_regs.pc, 0);
-# endif
-	if (errno)
-		return -1;
-
-	/* Disassemble the trap to see what personality to use. */
-	switch (trap) {
-	case 0x91d02010:
-		/* Linux/SPARC syscall trap. */
-		update_personality(tcp, 0);
-		break;
-	case 0x91d0206d:
-		/* Linux/SPARC64 syscall trap. */
-		update_personality(tcp, 2);
-		break;
-	case 0x91d02000:
-		/* SunOS syscall trap. (pers 1) */
-		fprintf(stderr, "syscall: SunOS no support\n");
-		return -1;
-	case 0x91d02008:
-		/* Solaris 2.x syscall trap. (per 2) */
-		update_personality(tcp, 1);
-		break;
-	case 0x91d02009:
-		/* NetBSD/FreeBSD syscall trap. */
-		fprintf(stderr, "syscall: NetBSD/FreeBSD not supported\n");
-		return -1;
-	case 0x91d02027:
-		/* Solaris 2.x gettimeofday */
-		update_personality(tcp, 1);
-		break;
-	default:
-# if defined(SPARC64)
-		fprintf(stderr, "syscall: unknown syscall trap %08lx %016lx\n", trap, sparc_regs.tpc);
-# else
-		fprintf(stderr, "syscall: unknown syscall trap %08lx %08lx\n", trap, sparc_regs.pc);
-# endif
-		return -1;
-	}
-
-	/* Extract the system call number from the registers. */
-	if (trap == 0x91d02027)
-		scno = 156;
-	else
-		scno = sparc_regs.u_regs[U_REG_G1];
-	if (scno == 0) {
-		scno = sparc_regs.u_regs[U_REG_O0];
-		memmove(&sparc_regs.u_regs[U_REG_O0], &sparc_regs.u_regs[U_REG_O1], 7*sizeof(sparc_regs.u_regs[0]));
-	}
-#elif defined(HPPA)
-	if (upeek(tcp->pid, PT_GR20, &scno) < 0)
-		return -1;
-#elif defined(SH)
-	/*
-	 * In the new syscall ABI, the system call number is in R3.
-	 */
-	if (upeek(tcp->pid, 4*(REG_REG0+3), &scno) < 0)
-		return -1;
-
-	if (scno < 0) {
-		/* Odd as it may seem, a glibc bug has been known to cause
-		   glibc to issue bogus negative syscall numbers.  So for
-		   our purposes, make strace print what it *should* have been */
-		long correct_scno = (scno & 0xff);
-		if (debug_flag)
-			fprintf(stderr,
-				"Detected glibc bug: bogus system call"
-				" number = %ld, correcting to %ld\n",
-				scno,
-				correct_scno);
-		scno = correct_scno;
-	}
-#elif defined(SH64)
-	if (upeek(tcp->pid, REG_SYSCALL, &scno) < 0)
-		return -1;
-	scno &= 0xFFFF;
-#elif defined(CRISV10) || defined(CRISV32)
-	if (upeek(tcp->pid, 4*PT_R9, &scno) < 0)
-		return -1;
-#elif defined(TILE)
-	unsigned int currpers;
-	scno = tile_regs.regs[10];
-# ifdef __tilepro__
-	currpers = 1;
-# else
-#  ifndef PT_FLAGS_COMPAT
-#   define PT_FLAGS_COMPAT 0x10000  /* from Linux 3.8 on */
-#  endif
-	if (tile_regs.flags & PT_FLAGS_COMPAT)
-		currpers = 1;
-	else
-		currpers = 0;
-# endif
-	update_personality(tcp, currpers);
-#elif defined(MICROBLAZE)
-	if (upeek(tcp->pid, 0, &scno) < 0)
-		return -1;
-#elif defined(OR1K)
-	scno = or1k_regs.gpr[11];
-#elif defined(METAG)
-	scno = metag_regs.dx[0][1];	/* syscall number in D1Re0 (D1.0) */
-#elif defined(XTENSA)
-	if (upeek(tcp->pid, SYSCALL_NR, &scno) < 0)
-		return -1;
-# elif defined(ARC)
-	scno = arc_regs.scratch.r8;
-#endif
+#include "get_scno.c"
 
 	tcp->scno = scno;
 	if (SCNO_IS_VALID(tcp->scno)) {
@@ -1940,463 +1276,17 @@
 static int
 get_syscall_args(struct tcb *tcp)
 {
-	int i, nargs;
-
-	nargs = tcp->s_ent->nargs;
-
-#if defined(S390) || defined(S390X)
-	(void)i;
-	(void)nargs;
-	tcp->u_arg[0] = s390_regset.orig_gpr2;
-	tcp->u_arg[1] = s390_regset.gprs[3];
-	tcp->u_arg[2] = s390_regset.gprs[4];
-	tcp->u_arg[3] = s390_regset.gprs[5];
-	tcp->u_arg[4] = s390_regset.gprs[6];
-	tcp->u_arg[5] = s390_regset.gprs[7];
-#elif defined(ALPHA)
-	for (i = 0; i < nargs; ++i)
-		if (upeek(tcp->pid, REG_A0+i, &tcp->u_arg[i]) < 0)
-			return -1;
-#elif defined(IA64)
-	if (!ia64_ia32mode) {
-		unsigned long *rbs_end =
-			(unsigned long *) ia64_regs.ar[PT_AUR_BSP];
-		unsigned long sof = (ia64_regs.cfm >> 0) & 0x7f;
-		unsigned long sol = (ia64_regs.cfm >> 7) & 0x7f;
-		unsigned long *out0 = ia64_rse_skip_regs(rbs_end, -sof + sol);
-
-		for (i = 0; i < nargs; ++i) {
-			if (umoven(tcp, (unsigned long) ia64_rse_skip_regs(out0, i),
-				   sizeof(long), &tcp->u_arg[i]) < 0)
-				return -1;
-		}
-	} else {
-		(void)i;
-		(void)nargs;
-		/* truncate away IVE sign-extension */
-		tcp->u_arg[0] = 0xffffffff & ia64_regs.gr[11]; /* EBX */
-		tcp->u_arg[1] = 0xffffffff & ia64_regs.gr[ 9]; /* ECX */
-		tcp->u_arg[2] = 0xffffffff & ia64_regs.gr[10]; /* EDX */
-		tcp->u_arg[3] = 0xffffffff & ia64_regs.gr[14]; /* ESI */
-		tcp->u_arg[4] = 0xffffffff & ia64_regs.gr[15]; /* EDI */
-		tcp->u_arg[5] = 0xffffffff & ia64_regs.gr[13]; /* EBP */
-	}
-#elif defined LINUX_MIPSN64
-	(void)i;
-	(void)nargs;
-	tcp->u_arg[0] = mips_REG_A0;
-	tcp->u_arg[1] = mips_REG_A1;
-	tcp->u_arg[2] = mips_REG_A2;
-	tcp->u_arg[3] = mips_REG_A3;
-	tcp->u_arg[4] = mips_REG_A4;
-	tcp->u_arg[5] = mips_REG_A5;
-#elif defined LINUX_MIPSN32
-	(void)i;
-	(void)nargs;
-	tcp->u_arg[0] = tcp->ext_arg[0] = mips_REG_A0;
-	tcp->u_arg[1] = tcp->ext_arg[1] = mips_REG_A1;
-	tcp->u_arg[2] = tcp->ext_arg[2] = mips_REG_A2;
-	tcp->u_arg[3] = tcp->ext_arg[3] = mips_REG_A3;
-	tcp->u_arg[4] = tcp->ext_arg[4] = mips_REG_A4;
-	tcp->u_arg[5] = tcp->ext_arg[5] = mips_REG_A5;
-#elif defined LINUX_MIPSO32
-	(void)i;
-	(void)nargs;
-	tcp->u_arg[0] = mips_REG_A0;
-	tcp->u_arg[1] = mips_REG_A1;
-	tcp->u_arg[2] = mips_REG_A2;
-	tcp->u_arg[3] = mips_REG_A3;
-	if (nargs > 4) {
-		umoven(tcp, mips_REG_SP + 4 * 4,
-		       (nargs - 4) * sizeof(tcp->u_arg[0]),
-		       &tcp->u_arg[4]);
-	}
-#elif defined(POWERPC)
-	(void)i;
-	(void)nargs;
-	tcp->u_arg[0] = ppc_regs.orig_gpr3;
-	tcp->u_arg[1] = ppc_regs.gpr[4];
-	tcp->u_arg[2] = ppc_regs.gpr[5];
-	tcp->u_arg[3] = ppc_regs.gpr[6];
-	tcp->u_arg[4] = ppc_regs.gpr[7];
-	tcp->u_arg[5] = ppc_regs.gpr[8];
-#elif defined(SPARC) || defined(SPARC64)
-	for (i = 0; i < nargs; ++i)
-		tcp->u_arg[i] = sparc_regs.u_regs[U_REG_O0 + i];
-#elif defined(HPPA)
-	for (i = 0; i < nargs; ++i)
-		if (upeek(tcp->pid, PT_GR26-4*i, &tcp->u_arg[i]) < 0)
-			return -1;
-#elif defined(ARM) || defined(AARCH64)
-# if defined(AARCH64)
-	if (tcp->currpers == 1)
-		for (i = 0; i < nargs; ++i)
-			tcp->u_arg[i] = aarch64_regs.regs[i];
-	else
-# endif
-	for (i = 0; i < nargs; ++i)
-		tcp->u_arg[i] = arm_regs.uregs[i];
-#elif defined(AVR32)
-	(void)i;
-	(void)nargs;
-	tcp->u_arg[0] = avr32_regs.r12;
-	tcp->u_arg[1] = avr32_regs.r11;
-	tcp->u_arg[2] = avr32_regs.r10;
-	tcp->u_arg[3] = avr32_regs.r9;
-	tcp->u_arg[4] = avr32_regs.r5;
-	tcp->u_arg[5] = avr32_regs.r3;
-#elif defined(BFIN)
-	static const int argreg[MAX_ARGS] = { PT_R0, PT_R1, PT_R2, PT_R3, PT_R4, PT_R5 };
-
-	for (i = 0; i < nargs; ++i)
-		if (upeek(tcp->pid, argreg[i], &tcp->u_arg[i]) < 0)
-			return -1;
-#elif defined(SH)
-	static const int syscall_regs[MAX_ARGS] = {
-		4 * (REG_REG0+4), 4 * (REG_REG0+5), 4 * (REG_REG0+6),
-		4 * (REG_REG0+7), 4 * (REG_REG0  ), 4 * (REG_REG0+1)
-	};
-
-	for (i = 0; i < nargs; ++i)
-		if (upeek(tcp->pid, syscall_regs[i], &tcp->u_arg[i]) < 0)
-			return -1;
-#elif defined(SH64)
-	int i;
-	/* Registers used by SH5 Linux system calls for parameters */
-	static const int syscall_regs[MAX_ARGS] = { 2, 3, 4, 5, 6, 7 };
-
-	for (i = 0; i < nargs; ++i)
-		if (upeek(tcp->pid, REG_GENERAL(syscall_regs[i]), &tcp->u_arg[i]) < 0)
-			return -1;
-#elif defined(I386)
-	(void)i;
-	(void)nargs;
-	tcp->u_arg[0] = i386_regs.ebx;
-	tcp->u_arg[1] = i386_regs.ecx;
-	tcp->u_arg[2] = i386_regs.edx;
-	tcp->u_arg[3] = i386_regs.esi;
-	tcp->u_arg[4] = i386_regs.edi;
-	tcp->u_arg[5] = i386_regs.ebp;
-#elif defined(X86_64) || defined(X32)
-	(void)i;
-	(void)nargs;
-	if (x86_io.iov_len != sizeof(i386_regs)) {
-		/* x86-64 or x32 ABI */
-		tcp->u_arg[0] = x86_64_regs.rdi;
-		tcp->u_arg[1] = x86_64_regs.rsi;
-		tcp->u_arg[2] = x86_64_regs.rdx;
-		tcp->u_arg[3] = x86_64_regs.r10;
-		tcp->u_arg[4] = x86_64_regs.r8;
-		tcp->u_arg[5] = x86_64_regs.r9;
-#  ifdef X32
-		tcp->ext_arg[0] = x86_64_regs.rdi;
-		tcp->ext_arg[1] = x86_64_regs.rsi;
-		tcp->ext_arg[2] = x86_64_regs.rdx;
-		tcp->ext_arg[3] = x86_64_regs.r10;
-		tcp->ext_arg[4] = x86_64_regs.r8;
-		tcp->ext_arg[5] = x86_64_regs.r9;
-#  endif
-	} else {
-		/* i386 ABI */
-		/* Zero-extend from 32 bits */
-		/* Use widen_to_long(tcp->u_arg[N]) in syscall handlers
-		 * if you need to use *sign-extended* parameter.
-		 */
-		tcp->u_arg[0] = (long)(uint32_t)i386_regs.ebx;
-		tcp->u_arg[1] = (long)(uint32_t)i386_regs.ecx;
-		tcp->u_arg[2] = (long)(uint32_t)i386_regs.edx;
-		tcp->u_arg[3] = (long)(uint32_t)i386_regs.esi;
-		tcp->u_arg[4] = (long)(uint32_t)i386_regs.edi;
-		tcp->u_arg[5] = (long)(uint32_t)i386_regs.ebp;
-	}
-#elif defined(MICROBLAZE)
-	for (i = 0; i < nargs; ++i)
-		if (upeek(tcp->pid, (5 + i) * 4, &tcp->u_arg[i]) < 0)
-			return -1;
-#elif defined(CRISV10) || defined(CRISV32)
-	static const int crisregs[MAX_ARGS] = {
-		4*PT_ORIG_R10, 4*PT_R11, 4*PT_R12,
-		4*PT_R13     , 4*PT_MOF, 4*PT_SRP
-	};
-
-	for (i = 0; i < nargs; ++i)
-		if (upeek(tcp->pid, crisregs[i], &tcp->u_arg[i]) < 0)
-			return -1;
-#elif defined(TILE)
-	for (i = 0; i < nargs; ++i)
-		tcp->u_arg[i] = tile_regs.regs[i];
-#elif defined(M68K)
-	for (i = 0; i < nargs; ++i)
-		if (upeek(tcp->pid, (i < 5 ? i : i + 2)*4, &tcp->u_arg[i]) < 0)
-			return -1;
-#elif defined(OR1K)
-	(void)nargs;
-	for (i = 0; i < 6; ++i)
-		tcp->u_arg[i] = or1k_regs.gpr[3 + i];
-#elif defined(METAG)
-	for (i = 0; i < nargs; i++)
-		/* arguments go backwards from D1Ar1 (D1.3) */
-		tcp->u_arg[i] = ((unsigned long *)&metag_regs.dx[3][1])[-i];
-#elif defined(XTENSA)
-	/* arg0: a6, arg1: a3, arg2: a4, arg3: a5, arg4: a8, arg5: a9 */
-	static const int xtensaregs[MAX_ARGS] = { 6, 3, 4, 5, 8, 9 };
-	for (i = 0; i < nargs; ++i)
-		if (upeek(tcp->pid, REG_A_BASE + xtensaregs[i], &tcp->u_arg[i]) < 0)
-			return -1;
-# elif defined(ARC)
-	long *arc_args = &arc_regs.scratch.r0;
-	for (i = 0; i < nargs; ++i)
-		tcp->u_arg[i] = *arc_args--;
-
-#else /* Other architecture (32bits specific) */
-	for (i = 0; i < nargs; ++i)
-		if (upeek(tcp->pid, i*4, &tcp->u_arg[i]) < 0)
-			return -1;
-#endif
+#include "get_syscall_args.c"
 	return 1;
 }
 
 static void
 get_error(struct tcb *tcp)
 {
-	int u_error = 0;
-	int check_errno = 1;
-	if (tcp->s_ent->sys_flags & SYSCALL_NEVER_FAILS) {
-		check_errno = 0;
-	}
-#if defined(S390) || defined(S390X)
-	if (check_errno && is_negated_errno(s390_regset.gprs[2])) {
-		tcp->u_rval = -1;
-		u_error = -s390_regset.gprs[2];
-	}
-	else {
-		tcp->u_rval = s390_regset.gprs[2];
-	}
-#elif defined(I386)
-	if (check_errno && is_negated_errno(i386_regs.eax)) {
-		tcp->u_rval = -1;
-		u_error = -i386_regs.eax;
-	}
-	else {
-		tcp->u_rval = i386_regs.eax;
-	}
-#elif defined(X86_64) || defined(X32)
-	/*
-	 * In X32, return value is 64-bit (llseek uses one).
-	 * Using merely "long rax" would not work.
-	 */
-	long long rax;
+	const bool check_errno = !(tcp->s_ent->sys_flags & SYSCALL_NEVER_FAILS);
+	tcp->u_error = 0;
 
-	if (x86_io.iov_len == sizeof(i386_regs)) {
-		/* Sign extend from 32 bits */
-		rax = (int32_t) i386_regs.eax;
-	} else {
-		rax = x86_64_regs.rax;
-	}
-	if (check_errno && is_negated_errno(rax)) {
-		tcp->u_rval = -1;
-		u_error = -rax;
-	}
-	else {
-		tcp->u_rval = rax;
-# ifdef X32
-		/* tcp->u_rval contains a truncated value */
-		tcp->u_lrval = rax;
-# endif
-	}
-#elif defined(IA64)
-	if (ia64_ia32mode) {
-		int err = ia64_regs.gr[8];
-		if (check_errno && is_negated_errno(err)) {
-			tcp->u_rval = -1;
-			u_error = -err;
-		}
-		else {
-			tcp->u_rval = err;
-		}
-	} else {
-		if (check_errno && ia64_regs.gr[10]) {
-			tcp->u_rval = -1;
-			u_error = ia64_regs.gr[8];
-		} else {
-			tcp->u_rval = ia64_regs.gr[8];
-		}
-	}
-#elif defined(MIPS)
-	if (check_errno && mips_REG_A3) {
-		tcp->u_rval = -1;
-		u_error = mips_REG_V0;
-	} else {
-# if defined LINUX_MIPSN32
-		tcp->u_lrval = mips_REG_V0;
-# endif
-		tcp->u_rval = mips_REG_V0;
-	}
-#elif defined(POWERPC)
-	if (check_errno && (ppc_regs.ccr & 0x10000000)) {
-		tcp->u_rval = -1;
-		u_error = ppc_regs.gpr[3];
-	}
-	else {
-		tcp->u_rval = ppc_regs.gpr[3];
-	}
-#elif defined(M68K)
-	if (check_errno && is_negated_errno(m68k_d0)) {
-		tcp->u_rval = -1;
-		u_error = -m68k_d0;
-	}
-	else {
-		tcp->u_rval = m68k_d0;
-	}
-#elif defined(ARM) || defined(AARCH64)
-# if defined(AARCH64)
-	if (tcp->currpers == 1) {
-		if (check_errno && is_negated_errno(aarch64_regs.regs[0])) {
-			tcp->u_rval = -1;
-			u_error = -aarch64_regs.regs[0];
-		}
-		else {
-			tcp->u_rval = aarch64_regs.regs[0];
-		}
-	}
-	else
-# endif
-	{
-		if (check_errno && is_negated_errno(arm_regs.ARM_r0)) {
-			tcp->u_rval = -1;
-			u_error = -arm_regs.ARM_r0;
-		}
-		else {
-			tcp->u_rval = arm_regs.ARM_r0;
-		}
-	}
-#elif defined(AVR32)
-	if (check_errno && avr32_regs.r12 && (unsigned) -avr32_regs.r12 < nerrnos) {
-		tcp->u_rval = -1;
-		u_error = -avr32_regs.r12;
-	}
-	else {
-		tcp->u_rval = avr32_regs.r12;
-	}
-#elif defined(BFIN)
-	if (check_errno && is_negated_errno(bfin_r0)) {
-		tcp->u_rval = -1;
-		u_error = -bfin_r0;
-	} else {
-		tcp->u_rval = bfin_r0;
-	}
-#elif defined(ALPHA)
-	if (check_errno && alpha_a3) {
-		tcp->u_rval = -1;
-		u_error = alpha_r0;
-	}
-	else {
-		tcp->u_rval = alpha_r0;
-	}
-#elif defined(SPARC)
-	if (check_errno && sparc_regs.psr & PSR_C) {
-		tcp->u_rval = -1;
-		u_error = sparc_regs.u_regs[U_REG_O0];
-	}
-	else {
-		tcp->u_rval = sparc_regs.u_regs[U_REG_O0];
-	}
-#elif defined(SPARC64)
-	if (check_errno && sparc_regs.tstate & 0x1100000000UL) {
-		tcp->u_rval = -1;
-		u_error = sparc_regs.u_regs[U_REG_O0];
-	}
-	else {
-		tcp->u_rval = sparc_regs.u_regs[U_REG_O0];
-	}
-#elif defined(HPPA)
-	if (check_errno && is_negated_errno(hppa_r28)) {
-		tcp->u_rval = -1;
-		u_error = -hppa_r28;
-	}
-	else {
-		tcp->u_rval = hppa_r28;
-	}
-#elif defined(SH)
-	if (check_errno && is_negated_errno(sh_r0)) {
-		tcp->u_rval = -1;
-		u_error = -sh_r0;
-	}
-	else {
-		tcp->u_rval = sh_r0;
-	}
-#elif defined(SH64)
-	if (check_errno && is_negated_errno(sh64_r9)) {
-		tcp->u_rval = -1;
-		u_error = -sh64_r9;
-	}
-	else {
-		tcp->u_rval = sh64_r9;
-	}
-#elif defined(METAG)
-	/* result pointer in D0Re0 (D0.0) */
-	if (check_errno && is_negated_errno(metag_regs.dx[0][0])) {
-		tcp->u_rval = -1;
-		u_error = -metag_regs.dx[0][0];
-	}
-	else {
-		tcp->u_rval = metag_regs.dx[0][0];
-	}
-#elif defined(CRISV10) || defined(CRISV32)
-	if (check_errno && cris_r10 && (unsigned) -cris_r10 < nerrnos) {
-		tcp->u_rval = -1;
-		u_error = -cris_r10;
-	}
-	else {
-		tcp->u_rval = cris_r10;
-	}
-#elif defined(TILE)
-	/*
-	 * The standard tile calling convention returns the value (or negative
-	 * errno) in r0, and zero (or positive errno) in r1.
-	 * Until at least kernel 3.8, however, the r1 value is not reflected
-	 * in ptregs at this point, so we use r0 here.
-	 */
-	if (check_errno && is_negated_errno(tile_regs.regs[0])) {
-		tcp->u_rval = -1;
-		u_error = -tile_regs.regs[0];
-	} else {
-		tcp->u_rval = tile_regs.regs[0];
-	}
-#elif defined(MICROBLAZE)
-	if (check_errno && is_negated_errno(microblaze_r3)) {
-		tcp->u_rval = -1;
-		u_error = -microblaze_r3;
-	}
-	else {
-		tcp->u_rval = microblaze_r3;
-	}
-#elif defined(OR1K)
-	if (check_errno && is_negated_errno(or1k_regs.gpr[11])) {
-		tcp->u_rval = -1;
-		u_error = -or1k_regs.gpr[11];
-	}
-	else {
-		tcp->u_rval = or1k_regs.gpr[11];
-	}
-#elif defined(XTENSA)
-	if (check_errno && is_negated_errno(xtensa_a2)) {
-		tcp->u_rval = -1;
-		u_error = -xtensa_a2;
-	}
-	else {
-		tcp->u_rval = xtensa_a2;
-	}
-#elif defined(ARC)
-	if (check_errno && is_negated_errno(arc_regs.scratch.r0)) {
-		tcp->u_rval = -1;
-		u_error = -arc_regs.scratch.r0;
-	}
-	else {
-		tcp->u_rval = arc_regs.scratch.r0;
-	}
-#endif
-	tcp->u_error = u_error;
+#include "get_error.c"
 }
 
 /* Returns:
@@ -2409,39 +1299,8 @@
 {
 #if defined ARCH_REGS_FOR_GETREGSET || defined ARCH_REGS_FOR_GETREGS
 	/* already done by get_regs */
-#elif defined(BFIN)
-	if (upeek(tcp->pid, PT_R0, &bfin_r0) < 0)
-		return -1;
-#elif defined(M68K)
-	if (upeek(tcp->pid, 4*PT_D0, &m68k_d0) < 0)
-		return -1;
-#elif defined(ALPHA)
-	if (upeek(tcp->pid, REG_A3, &alpha_a3) < 0)
-		return -1;
-	if (upeek(tcp->pid, REG_R0, &alpha_r0) < 0)
-		return -1;
-#elif defined(HPPA)
-	if (upeek(tcp->pid, PT_GR28, &hppa_r28) < 0)
-		return -1;
-#elif defined(SH)
-	/* new syscall ABI returns result in R0 */
-	if (upeek(tcp->pid, 4*REG_REG0, (long *)&sh_r0) < 0)
-		return -1;
-#elif defined(SH64)
-	/* ABI defines result returned in r9 */
-	if (upeek(tcp->pid, REG_GENERAL(9), (long *)&sh64_r9) < 0)
-		return -1;
-#elif defined(CRISV10) || defined(CRISV32)
-	if (upeek(tcp->pid, 4*PT_R10, &cris_r10) < 0)
-		return -1;
-#elif defined(MICROBLAZE)
-	if (upeek(tcp->pid, 3 * 4, &microblaze_r3) < 0)
-		return -1;
-#elif defined(XTENSA)
-	if (upeek(tcp->pid, REG_A_BASE + 2, &xtensa_a2) < 0)
-		return -1;
 #else
-# error get_syscall_result is not implemented for this architecture
+# include "get_syscall_result.c"
 #endif
 	get_error(tcp);
 	return 1;