| |
| /*--------------------------------------------------------------------*/ |
| /*--- Machine-related things. pub_core_machine.h ---*/ |
| /*--------------------------------------------------------------------*/ |
| |
| /* |
| This file is part of Valgrind, a dynamic binary instrumentation |
| framework. |
| |
| Copyright (C) 2000-2013 Julian Seward |
| jseward@acm.org |
| |
| This program is free software; you can redistribute it and/or |
| modify it under the terms of the GNU General Public License as |
| published by the Free Software Foundation; either version 2 of the |
| License, or (at your option) any later version. |
| |
| This program is distributed in the hope that it will be useful, but |
| WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with this program; if not, write to the Free Software |
| Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
| 02111-1307, USA. |
| |
| The GNU General Public License is contained in the file COPYING. |
| */ |
| |
| #ifndef __PUB_CORE_MACHINE_H |
| #define __PUB_CORE_MACHINE_H |
| |
| //-------------------------------------------------------------------- |
| // PURPOSE: This module contains code related to the particular |
| // architecture, things like accessing guest state, endianness, word size, |
| // etc. |
| //-------------------------------------------------------------------- |
| |
| #include "pub_tool_machine.h" |
| #include "pub_core_basics.h" // UnwindStartRegs |
| |
| // XXX: this is *really* the wrong spot for these things |
| #if defined(VGP_x86_linux) |
| # define VG_ELF_DATA2XXX ELFDATA2LSB |
| # define VG_ELF_MACHINE EM_386 |
| # define VG_ELF_CLASS ELFCLASS32 |
| # undef VG_PLAT_USES_PPCTOC |
| #elif defined(VGP_amd64_linux) |
| # define VG_ELF_DATA2XXX ELFDATA2LSB |
| # define VG_ELF_MACHINE EM_X86_64 |
| # define VG_ELF_CLASS ELFCLASS64 |
| # undef VG_PLAT_USES_PPCTOC |
| #elif defined(VGP_ppc32_linux) |
| # define VG_ELF_DATA2XXX ELFDATA2MSB |
| # define VG_ELF_MACHINE EM_PPC |
| # define VG_ELF_CLASS ELFCLASS32 |
| # undef VG_PLAT_USES_PPCTOC |
| #elif defined(VGP_ppc64_linux) |
| # define VG_ELF_DATA2XXX ELFDATA2MSB |
| # define VG_ELF_MACHINE EM_PPC64 |
| # define VG_ELF_CLASS ELFCLASS64 |
| # define VG_PLAT_USES_PPCTOC 1 |
| #elif defined(VGP_arm_linux) |
| # define VG_ELF_DATA2XXX ELFDATA2LSB |
| # define VG_ELF_MACHINE EM_ARM |
| # define VG_ELF_CLASS ELFCLASS32 |
| # undef VG_PLAT_USES_PPCTOC |
| #elif defined(VGP_arm64_linux) |
| # define VG_ELF_DATA2XXX ELFDATA2LSB |
| # define VG_ELF_MACHINE EM_AARCH64 |
| # define VG_ELF_CLASS ELFCLASS64 |
| # undef VG_PLAT_USES_PPCTOC |
| #elif defined(VGO_darwin) |
| # undef VG_ELF_DATA2XXX |
| # undef VG_ELF_MACHINE |
| # undef VG_ELF_CLASS |
| # undef VG_PLAT_USES_PPCTOC |
| #elif defined(VGP_s390x_linux) |
| # define VG_ELF_DATA2XXX ELFDATA2MSB |
| # define VG_ELF_MACHINE EM_S390 |
| # define VG_ELF_CLASS ELFCLASS64 |
| # undef VG_PLAT_USES_PPCTOC |
| #elif defined(VGP_mips32_linux) |
| # if defined (VG_LITTLEENDIAN) |
| # define VG_ELF_DATA2XXX ELFDATA2LSB |
| # elif defined (VG_BIGENDIAN) |
| # define VG_ELF_DATA2XXX ELFDATA2MSB |
| # else |
| # error "Unknown endianness" |
| # endif |
| # define VG_ELF_MACHINE EM_MIPS |
| # define VG_ELF_CLASS ELFCLASS32 |
| # undef VG_PLAT_USES_PPCTOC |
| #elif defined(VGP_mips64_linux) |
| # if defined (VG_LITTLEENDIAN) |
| # define VG_ELF_DATA2XXX ELFDATA2LSB |
| # elif defined (VG_BIGENDIAN) |
| # define VG_ELF_DATA2XXX ELFDATA2MSB |
| # else |
| # error "Unknown endianness" |
| # endif |
| # define VG_ELF_MACHINE EM_MIPS |
| # define VG_ELF_CLASS ELFCLASS64 |
| # undef VG_PLAT_USES_PPCTOC |
| #else |
| # error Unknown platform |
| #endif |
| |
| #if defined(VGA_x86) |
| # define VG_INSTR_PTR guest_EIP |
| # define VG_STACK_PTR guest_ESP |
| # define VG_FRAME_PTR guest_EBP |
| #elif defined(VGA_amd64) |
| # define VG_INSTR_PTR guest_RIP |
| # define VG_STACK_PTR guest_RSP |
| # define VG_FRAME_PTR guest_RBP |
| #elif defined(VGA_ppc32) |
| # define VG_INSTR_PTR guest_CIA |
| # define VG_STACK_PTR guest_GPR1 |
| # define VG_FRAME_PTR guest_GPR1 // No frame ptr for PPC |
| #elif defined(VGA_ppc64) |
| # define VG_INSTR_PTR guest_CIA |
| # define VG_STACK_PTR guest_GPR1 |
| # define VG_FRAME_PTR guest_GPR1 // No frame ptr for PPC |
| #elif defined(VGA_arm) |
| # define VG_INSTR_PTR guest_R15T |
| # define VG_STACK_PTR guest_R13 |
| # define VG_FRAME_PTR guest_R11 |
| #elif defined(VGA_arm64) |
| # define VG_INSTR_PTR guest_PC |
| # define VG_STACK_PTR guest_XSP |
| # define VG_FRAME_PTR guest_X29 // FIXME: is this right? |
| #elif defined(VGA_s390x) |
| # define VG_INSTR_PTR guest_IA |
| # define VG_STACK_PTR guest_SP |
| # define VG_FRAME_PTR guest_FP |
| # define VG_FPC_REG guest_fpc |
| #elif defined(VGA_mips32) |
| # define VG_INSTR_PTR guest_PC |
| # define VG_STACK_PTR guest_r29 |
| # define VG_FRAME_PTR guest_r30 |
| #elif defined(VGA_mips64) |
| # define VG_INSTR_PTR guest_PC |
| # define VG_STACK_PTR guest_r29 |
| # define VG_FRAME_PTR guest_r30 |
| #else |
| # error Unknown arch |
| #endif |
| |
| |
| // Offsets for the Vex state |
| #define VG_O_STACK_PTR (offsetof(VexGuestArchState, VG_STACK_PTR)) |
| #define VG_O_INSTR_PTR (offsetof(VexGuestArchState, VG_INSTR_PTR)) |
| #define VG_O_FPC_REG (offsetof(VexGuestArchState, VG_FPC_REG)) |
| |
| |
| //------------------------------------------------------------- |
| // Guest state accessors that are not visible to tools. The only |
| // ones that are visible are get_IP and get_SP. |
| |
| //Addr VG_(get_IP) ( ThreadId tid ); // in pub_tool_machine.h |
| //Addr VG_(get_SP) ( ThreadId tid ); // in pub_tool_machine.h |
| Addr VG_(get_FP) ( ThreadId tid ); |
| |
| void VG_(set_IP) ( ThreadId tid, Addr encip ); |
| void VG_(set_SP) ( ThreadId tid, Addr sp ); |
| |
| |
| //------------------------------------------------------------- |
| // Get hold of the values needed for a stack unwind, for the specified |
| // (client) thread. |
| void VG_(get_UnwindStartRegs) ( /*OUT*/UnwindStartRegs* regs, |
| ThreadId tid ); |
| |
| |
| //------------------------------------------------------------- |
| /* Details about the capabilities of the underlying (host) CPU. These |
| details are acquired by (1) enquiring with the CPU at startup, or |
| (2) from the AT_SYSINFO entries the kernel gave us (ppc cache |
| line size). It's a bit nasty in the sense that there's no obvious |
| way to stop uses of some of this info before it's ready to go. |
| |
| Current dependencies are: |
| |
| x86: initially: call VG_(machine_get_hwcaps) |
| |
| then safe to use VG_(machine_get_VexArchInfo) |
| and VG_(machine_x86_have_mxcsr) |
| ------------- |
| amd64: initially: call VG_(machine_get_hwcaps) |
| |
| then safe to use VG_(machine_get_VexArchInfo) |
| ------------- |
| ppc32: initially: call VG_(machine_get_hwcaps) |
| call VG_(machine_ppc32_set_clszB) |
| |
| then safe to use VG_(machine_get_VexArchInfo) |
| and VG_(machine_ppc32_has_FP) |
| and VG_(machine_ppc32_has_VMX) |
| ------------- |
| ppc64: initially: call VG_(machine_get_hwcaps) |
| call VG_(machine_ppc64_set_clszB) |
| |
| then safe to use VG_(machine_get_VexArchInfo) |
| and VG_(machine_ppc64_has_VMX) |
| ------------- |
| arm: initially: call VG_(machine_get_hwcaps) |
| call VG_(machine_arm_set_has_NEON) |
| |
| then safe to use VG_(machine_get_VexArchInfo) |
| ------------- |
| s390x: initially: call VG_(machine_get_hwcaps) |
| |
| then safe to use VG_(machine_get_VexArchInfo) |
| |
| VG_(machine_get_hwcaps) may use signals (although it attempts to |
| leave signal state unchanged) and therefore should only be |
| called before m_main sets up the client's signal state. |
| */ |
| |
| /* Determine what insn set and insn set variant the host has, and |
| record it. To be called once at system startup. Returns False if |
| this a CPU incapable of running Valgrind. */ |
| extern Bool VG_(machine_get_hwcaps)( void ); |
| |
| /* Determine information about the cache system this host has and |
| record it. Returns False, if cache information cannot be auto-detected. */ |
| extern Bool VG_(machine_get_cache_info)( VexArchInfo * ); |
| |
| /* Notify host cpu cache line size, as per above comment. */ |
| #if defined(VGA_ppc32) |
| extern void VG_(machine_ppc32_set_clszB)( Int ); |
| #endif |
| |
| #if defined(VGA_ppc64) |
| extern void VG_(machine_ppc64_set_clszB)( Int ); |
| #endif |
| |
| #if defined(VGA_arm) |
| extern void VG_(machine_arm_set_has_NEON)( Bool ); |
| #endif |
| |
| /* X86: set to 1 if the host is able to do {ld,st}mxcsr (load/store |
| the SSE control/status register), else zero. Is referenced from |
| assembly code, so do not change from a 32-bit int. */ |
| #if defined(VGA_x86) |
| extern UInt VG_(machine_x86_have_mxcsr); |
| #endif |
| |
| /* PPC32: set to 1 if FP instructions are supported in user-space, |
| else 0. Is referenced from assembly code, so do not change from a |
| 32-bit int. */ |
| #if defined(VGA_ppc32) |
| extern UInt VG_(machine_ppc32_has_FP); |
| #endif |
| |
| /* PPC32: set to 1 if Altivec instructions are supported in |
| user-space, else 0. Is referenced from assembly code, so do not |
| change from a 32-bit int. */ |
| #if defined(VGA_ppc32) |
| extern UInt VG_(machine_ppc32_has_VMX); |
| #endif |
| |
| /* PPC64: set to 1 if Altivec instructions are supported in |
| user-space, else 0. Is referenced from assembly code, so do not |
| change from a 64-bit int. */ |
| #if defined(VGA_ppc64) |
| extern ULong VG_(machine_ppc64_has_VMX); |
| #endif |
| |
| #if defined(VGA_arm) |
| extern Int VG_(machine_arm_archlevel); |
| #endif |
| |
| #endif // __PUB_CORE_MACHINE_H |
| |
| /*--------------------------------------------------------------------*/ |
| /*--- end ---*/ |
| /*--------------------------------------------------------------------*/ |