perf: Make perf build for x86 with UAPI disintegration applied
Make perf build for x86 once the UAPI disintegration patches for that arch
have been applied by adding the appropriate -I flags - in the right order -
and then converting some #includes that use ../.. notation to find main kernel
headerfiles to use <asm/foo.h> and <linux/foo.h> instead.
Note that -Iarch/foo/include/uapi is present _before_ -Iarch/foo/include.
This makes sure we get the userspace version of the pt_regs struct. Ideally,
we wouldn't have the latter -I flag at all, but unfortunately we want
asm/svm.h and asm/vmx.h in builtin-kvm.c and these aren't part of the UAPI -
at least not for x86. I wonder if the bits outside of the __KERNEL__ guards
*should* be transferred there.
I note also that perf seems to do its dependency handling manually by listing
all the header files it might want to use in LIB_H in the Makefile. Can this
be changed to use -MD?
Note that to do make this work, we need to export and UAPI disintegrate
linux/hw_breakpoint.h, which I think should've been exported previously so that
perf can access the bits. We have to do this in the same patch to maintain
bisectability.
Signed-off-by: David Howells <dhowells@redhat.com>
diff --git a/tools/perf/Makefile b/tools/perf/Makefile
index 00deed4d..0a619af 100644
--- a/tools/perf/Makefile
+++ b/tools/perf/Makefile
@@ -169,7 +169,34 @@
### --- END CONFIGURATION SECTION ---
-BASIC_CFLAGS = -Iutil/include -Iarch/$(ARCH)/include -I$(OUTPUT)util -I$(TRACE_EVENT_DIR) -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -D_GNU_SOURCE
+ifeq ($(srctree),)
+srctree := $(patsubst %/,%,$(dir $(shell pwd)))
+srctree := $(patsubst %/,%,$(dir $(srctree)))
+#$(info Determined 'srctree' to be $(srctree))
+endif
+
+ifneq ($(objtree),)
+#$(info Determined 'objtree' to be $(objtree))
+endif
+
+ifneq ($(OUTPUT),)
+#$(info Determined 'OUTPUT' to be $(OUTPUT))
+endif
+
+BASIC_CFLAGS = \
+ -Iutil/include \
+ -Iarch/$(ARCH)/include \
+ $(if $(objtree),-I$(objtree)/arch/$(ARCH)/include/generated/uapi) \
+ -I$(srctree)/arch/$(ARCH)/include/uapi \
+ -I$(srctree)/arch/$(ARCH)/include \
+ $(if $(objtree),-I$(objtree)/include/generated/uapi) \
+ -I$(srctree)/include/uapi \
+ -I$(srctree)/include \
+ -I$(OUTPUT)util \
+ -Iutil \
+ -I. \
+ -I$(TRACE_EVENT_DIR) \
+ -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -D_GNU_SOURCE
BASIC_LDFLAGS =
# Guard against environment variables
diff --git a/tools/perf/arch/x86/include/perf_regs.h b/tools/perf/arch/x86/include/perf_regs.h
index 46fc9f1..7fcdcdb 100644
--- a/tools/perf/arch/x86/include/perf_regs.h
+++ b/tools/perf/arch/x86/include/perf_regs.h
@@ -3,7 +3,7 @@
#include <stdlib.h>
#include "../../util/types.h"
-#include "../../../../../arch/x86/include/asm/perf_regs.h"
+#include <asm/perf_regs.h>
#ifndef ARCH_X86_64
#define PERF_REGS_MASK ((1ULL << PERF_REG_X86_32_MAX) - 1)
diff --git a/tools/perf/builtin-kvm.c b/tools/perf/builtin-kvm.c
index 260abc5..e013bdb 100644
--- a/tools/perf/builtin-kvm.c
+++ b/tools/perf/builtin-kvm.c
@@ -22,9 +22,9 @@
#include <pthread.h>
#include <math.h>
-#include "../../arch/x86/include/asm/svm.h"
-#include "../../arch/x86/include/asm/vmx.h"
-#include "../../arch/x86/include/asm/kvm.h"
+#include <asm/svm.h>
+#include <asm/vmx.h>
+#include <asm/kvm.h>
struct event_key {
#define INVALID_KEY (~0ULL)
diff --git a/tools/perf/builtin-test.c b/tools/perf/builtin-test.c
index 484f26c..5acd6e8 100644
--- a/tools/perf/builtin-test.c
+++ b/tools/perf/builtin-test.c
@@ -15,7 +15,7 @@
#include "util/thread_map.h"
#include "util/pmu.h"
#include "event-parse.h"
-#include "../../include/linux/hw_breakpoint.h"
+#include <linux/hw_breakpoint.h>
#include <sys/mman.h>
diff --git a/tools/perf/perf.h b/tools/perf/perf.h
index e2ba8f00..238f923 100644
--- a/tools/perf/perf.h
+++ b/tools/perf/perf.h
@@ -5,8 +5,9 @@
void get_term_dimensions(struct winsize *ws);
+#include <asm/unistd.h>
+
#if defined(__i386__)
-#include "../../arch/x86/include/asm/unistd.h"
#define rmb() asm volatile("lock; addl $0,0(%%esp)" ::: "memory")
#define cpu_relax() asm volatile("rep; nop" ::: "memory");
#define CPUINFO_PROC "model name"
@@ -16,7 +17,6 @@
#endif
#if defined(__x86_64__)
-#include "../../arch/x86/include/asm/unistd.h"
#define rmb() asm volatile("lfence" ::: "memory")
#define cpu_relax() asm volatile("rep; nop" ::: "memory");
#define CPUINFO_PROC "model name"
@@ -26,20 +26,17 @@
#endif
#ifdef __powerpc__
-#include "../../arch/powerpc/include/uapi/asm/unistd.h"
#define rmb() asm volatile ("sync" ::: "memory")
#define cpu_relax() asm volatile ("" ::: "memory");
#define CPUINFO_PROC "cpu"
#endif
#ifdef __s390__
-#include "../../arch/s390/include/asm/unistd.h"
#define rmb() asm volatile("bcr 15,0" ::: "memory")
#define cpu_relax() asm volatile("" ::: "memory");
#endif
#ifdef __sh__
-#include "../../arch/sh/include/asm/unistd.h"
#if defined(__SH4A__) || defined(__SH5__)
# define rmb() asm volatile("synco" ::: "memory")
#else
@@ -50,35 +47,30 @@
#endif
#ifdef __hppa__
-#include "../../arch/parisc/include/asm/unistd.h"
#define rmb() asm volatile("" ::: "memory")
#define cpu_relax() asm volatile("" ::: "memory");
#define CPUINFO_PROC "cpu"
#endif
#ifdef __sparc__
-#include "../../arch/sparc/include/uapi/asm/unistd.h"
#define rmb() asm volatile("":::"memory")
#define cpu_relax() asm volatile("":::"memory")
#define CPUINFO_PROC "cpu"
#endif
#ifdef __alpha__
-#include "../../arch/alpha/include/asm/unistd.h"
#define rmb() asm volatile("mb" ::: "memory")
#define cpu_relax() asm volatile("" ::: "memory")
#define CPUINFO_PROC "cpu model"
#endif
#ifdef __ia64__
-#include "../../arch/ia64/include/asm/unistd.h"
#define rmb() asm volatile ("mf" ::: "memory")
#define cpu_relax() asm volatile ("hint @pause" ::: "memory")
#define CPUINFO_PROC "model name"
#endif
#ifdef __arm__
-#include "../../arch/arm/include/asm/unistd.h"
/*
* Use the __kuser_memory_barrier helper in the CPU helper page. See
* arch/arm/kernel/entry-armv.S in the kernel source for details.
@@ -89,13 +81,11 @@
#endif
#ifdef __aarch64__
-#include "../../arch/arm64/include/asm/unistd.h"
#define rmb() asm volatile("dmb ld" ::: "memory")
#define cpu_relax() asm volatile("yield" ::: "memory")
#endif
#ifdef __mips__
-#include "../../arch/mips/include/asm/unistd.h"
#define rmb() asm volatile( \
".set mips2\n\t" \
"sync\n\t" \
@@ -112,7 +102,7 @@
#include <sys/types.h>
#include <sys/syscall.h>
-#include "../../include/uapi/linux/perf_event.h"
+#include <linux/perf_event.h>
#include "util/types.h"
#include <stdbool.h>
diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index 618d411..d144d46 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -18,8 +18,8 @@
#include "cpumap.h"
#include "thread_map.h"
#include "target.h"
-#include "../../../include/linux/hw_breakpoint.h"
-#include "../../../include/uapi/linux/perf_event.h"
+#include <linux/hw_breakpoint.h>
+#include <linux/perf_event.h>
#include "perf_regs.h"
#define FD(e, x, y) (*(int *)xyarray__entry(e->fd, x, y))
diff --git a/tools/perf/util/evsel.h b/tools/perf/util/evsel.h
index 6f94d6d..d99b476 100644
--- a/tools/perf/util/evsel.h
+++ b/tools/perf/util/evsel.h
@@ -3,7 +3,8 @@
#include <linux/list.h>
#include <stdbool.h>
-#include "../../../include/uapi/linux/perf_event.h"
+#include <stddef.h>
+#include <linux/perf_event.h>
#include "types.h"
#include "xyarray.h"
#include "cgroup.h"
diff --git a/tools/perf/util/header.h b/tools/perf/util/header.h
index 879d215..9bc0078 100644
--- a/tools/perf/util/header.h
+++ b/tools/perf/util/header.h
@@ -1,7 +1,7 @@
#ifndef __PERF_HEADER_H
#define __PERF_HEADER_H
-#include "../../../include/uapi/linux/perf_event.h"
+#include <linux/perf_event.h>
#include <sys/types.h>
#include <stdbool.h>
#include "types.h"
diff --git a/tools/perf/util/parse-events-test.c b/tools/perf/util/parse-events-test.c
index 516ecd9..6ef213b 100644
--- a/tools/perf/util/parse-events-test.c
+++ b/tools/perf/util/parse-events-test.c
@@ -3,7 +3,7 @@
#include "evsel.h"
#include "evlist.h"
#include "sysfs.h"
-#include "../../../include/linux/hw_breakpoint.h"
+#include <linux/hw_breakpoint.h>
#define TEST_ASSERT_VAL(text, cond) \
do { \
diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index 75c7b0f..6b6d03e 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -1,4 +1,4 @@
-#include "../../../include/linux/hw_breakpoint.h"
+#include <linux/hw_breakpoint.h>
#include "util.h"
#include "../perf.h"
#include "evlist.h"
diff --git a/tools/perf/util/parse-events.h b/tools/perf/util/parse-events.h
index 839230c..2820c40 100644
--- a/tools/perf/util/parse-events.h
+++ b/tools/perf/util/parse-events.h
@@ -7,7 +7,7 @@
#include <linux/list.h>
#include <stdbool.h>
#include "types.h"
-#include "../../../include/uapi/linux/perf_event.h"
+#include <linux/perf_event.h>
#include "types.h"
struct list_head;
diff --git a/tools/perf/util/pmu.h b/tools/perf/util/pmu.h
index 39f3aba..fdeb8ac 100644
--- a/tools/perf/util/pmu.h
+++ b/tools/perf/util/pmu.h
@@ -2,7 +2,7 @@
#define __PMU_H
#include <linux/bitops.h>
-#include "../../../include/uapi/linux/perf_event.h"
+#include <linux/perf_event.h>
enum {
PERF_PMU_FORMAT_VALUE_CONFIG,
diff --git a/tools/perf/util/session.h b/tools/perf/util/session.h
index dd64261..0eae00a 100644
--- a/tools/perf/util/session.h
+++ b/tools/perf/util/session.h
@@ -7,7 +7,7 @@
#include "symbol.h"
#include "thread.h"
#include <linux/rbtree.h>
-#include "../../../include/uapi/linux/perf_event.h"
+#include <linux/perf_event.h>
struct sample_queue;
struct ip_callchain;