mirror of
https://github.com/Zenithsiz/ftmemsim-valgrind.git
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6af183ac21
- when recording the non-redirected address in guest_NRADDR, also snapshot the current R2 value, as that will be needed to run the original safely - As a consequence, the original-function information extracted by VALGRIND_GET_ORIG_FN is different on ppc64-linux (2 words) from all other platforms (1 word). So change the type of it from void* to a new type OrigFn which can be defined differently for each platform. - Change the CALL_FN_* macros for ppc64-linux to save/restore R2 values appropriately. - ppc64-linux: detect overflow/underflow of the redirect stack and bring Valgrind to a halt if this happens - Update VG_CLREQ_SZB for ppc32/64 (was out of date). git-svn-id: svn://svn.valgrind.org/valgrind/trunk@5569
99 lines
4.0 KiB
C
99 lines
4.0 KiB
C
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/*--------------------------------------------------------------------*/
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/*--- Machine-related stuff. pub_tool_machine.h ---*/
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/*--------------------------------------------------------------------*/
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/*
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This file is part of Valgrind, a dynamic binary instrumentation
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framework.
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Copyright (C) 2000-2005 Julian Seward
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jseward@acm.org
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307, USA.
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The GNU General Public License is contained in the file COPYING.
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*/
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#ifndef __PUB_TOOL_MACHINE_H
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#define __PUB_TOOL_MACHINE_H
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#if defined(VGA_x86)
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# define VG_MIN_INSTR_SZB 1 // min length of native instruction
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# define VG_MAX_INSTR_SZB 16 // max length of native instruction
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# define VG_CLREQ_SZB 14 // length of a client request, may
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// be larger than VG_MAX_INSTR_SZB
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# define VG_STACK_REDZONE_SZB 0 // number of addressable bytes below %RSP
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#elif defined(VGA_amd64)
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# define VG_MIN_INSTR_SZB 1
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# define VG_MAX_INSTR_SZB 16
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# define VG_CLREQ_SZB 19
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# define VG_STACK_REDZONE_SZB 128
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#elif defined(VGA_ppc32)
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# define VG_MIN_INSTR_SZB 4
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# define VG_MAX_INSTR_SZB 4
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# define VG_CLREQ_SZB 20
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# define VG_STACK_REDZONE_SZB 0
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#elif defined(VGA_ppc64)
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# define VG_MIN_INSTR_SZB 4
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# define VG_MAX_INSTR_SZB 4
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# define VG_CLREQ_SZB 20
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# define VG_STACK_REDZONE_SZB 288 // number of addressable bytes below R1
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// from 64-bit PowerPC ELF ABI Supplement 1.7
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#else
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# error Unknown arch
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#endif
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// Guest state accessors
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extern Addr VG_(get_SP) ( ThreadId tid );
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extern Addr VG_(get_IP) ( ThreadId tid );
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extern Addr VG_(get_FP) ( ThreadId tid );
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extern Addr VG_(get_LR) ( ThreadId tid );
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extern void VG_(set_SP) ( ThreadId tid, Addr sp );
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extern void VG_(set_IP) ( ThreadId tid, Addr ip );
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// For get/set, 'area' is where the asked-for shadow state will be copied
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// into/from.
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extern void VG_(get_shadow_regs_area) ( ThreadId tid, OffT guest_state_offset,
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SizeT size, UChar* area );
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extern void VG_(set_shadow_regs_area) ( ThreadId tid, OffT guest_state_offset,
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SizeT size, const UChar* area );
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// Apply a function 'f' to all the general purpose registers in all the
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// current threads.
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// This is very Memcheck-specific -- it's used to find the roots when
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// doing leak checking.
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extern void VG_(apply_to_GP_regs)(void (*f)(UWord val));
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// This iterator lets you inspect each live thread's stack bounds. The
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// params are all 'out' params. Returns False at the end.
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extern void VG_(thread_stack_reset_iter) ( void );
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extern Bool VG_(thread_stack_next) ( ThreadId* tid, Addr* stack_min,
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Addr* stack_max );
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// Given a pointer to a function as obtained by "& functionname" in C,
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// produce a pointer to the actual entry point for the function. For
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// most platforms it's the identity function. Unfortunately, on
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// ppc64-linux it isn't (sigh).
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extern void* VG_(fnptr_to_fnentry)( void* );
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#endif // __PUB_TOOL_MACHINE_H
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/*--------------------------------------------------------------------*/
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/*--- end ---*/
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/*--------------------------------------------------------------------*/
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