zenithsiz/ftmemsim-valgrind
1
0
Fork 0
mirror of https://github.com/Zenithsiz/ftmemsim-valgrind.git synced 2026-02-03 18:13:01 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity
ftmemsim-valgrind/coregrind/pub_core_machine.h
Carl Love 98908947c7 This commit is for Bugzilla 334834. The Bugzilla contains patch 2 of 3 
to add PPC64 LE support.  The other two patches can be found in Bugzillas
334384 and 334836.

POWER PC, add the functional Little Endian support, patch 2 

The IBM POWER processor now supports both Big Endian and Little Endian.
The ABI for Little Endian also changes.  Specifically, the function
descriptor is not used, the stack size changed, accessing the TOC
changed.  Functions now have a local and a global entry point.  Register
r2 contains the TOC for local calls and register r12 contains the TOC
for global calls.  This patch makes the functional changes to the
Valgrind tool.  The patch makes the changes needed for the
none/tests/ppc32 and none/tests/ppc64 Makefile.am.  A number of the
ppc specific tests have Endian dependencies that are not fixed in
this patch.  They are fixed in the next patch.

Per Julian's comments renamed coregrind/m_dispatch/dispatch-ppc64-linux.S
to coregrind/m_dispatch/dispatch-ppc64be-linux.S  Created new file for LE
coregrind/m_dispatch/dispatch-ppc64le-linux.S.  The same was done for
coregrind/m_syswrap/syscall-ppc-linux.S.

Signed-off-by: Carl Love <carll@us.ibm.com>

git-svn-id: svn://svn.valgrind.org/valgrind/trunk@14239
2014-08-07 23:35:54 +00:00

286 lines
10 KiB
C
Raw Blame History

/*--------------------------------------------------------------------*/
/*--- 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_ppc64be_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_ppc64le_linux)
# define VG_ELF_DATA2XXX ELFDATA2LSB
# define VG_ELF_MACHINE EM_PPC64
# define VG_ELF_CLASS ELFCLASS64
# undef VG_PLAT_USES_PPCTOC
#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_ppc64be) || defined(VGA_ppc64le)
# 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_ppc64be) || defined(VGA_ppc64le)
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_ppc64be) || defined(VGA_ppc64le)
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 ---*/
/*--------------------------------------------------------------------*/
Reference in New Issue View Git Blame Copy Permalink