Index: base/third_party/valgrind/valgrind.h |
=================================================================== |
--- base/third_party/valgrind/valgrind.h (revision 72478) |
+++ base/third_party/valgrind/valgrind.h (working copy) |
@@ -12,7 +12,7 @@ |
This file is part of Valgrind, a dynamic binary instrumentation |
framework. |
- Copyright (C) 2000-2008 Julian Seward. All rights reserved. |
+ Copyright (C) 2000-2010 Julian Seward. All rights reserved. |
Redistribution and use in source and binary forms, with or without |
modification, are permitted provided that the following conditions |
@@ -73,6 +73,25 @@ |
#ifndef __VALGRIND_H |
#define __VALGRIND_H |
+ |
+/* ------------------------------------------------------------------ */ |
+/* VERSION NUMBER OF VALGRIND */ |
+/* ------------------------------------------------------------------ */ |
+ |
+/* Specify Valgrind's version number, so that user code can |
+ conditionally compile based on our version number. Note that these |
+ were introduced at version 3.6 and so do not exist in version 3.5 |
+ or earlier. The recommended way to use them to check for "version |
+ X.Y or later" is (eg) |
+ |
+#if defined(__VALGRIND_MAJOR__) && defined(__VALGRIND_MINOR__) \ |
+ && (__VALGRIND_MAJOR__ > 3 \ |
+ || (__VALGRIND_MAJOR__ == 3 && __VALGRIND_MINOR__ >= 6)) |
+*/ |
+#define __VALGRIND_MAJOR__ 3 |
+#define __VALGRIND_MINOR__ 6 |
+ |
+ |
#include <stdarg.h> |
/* Nb: this file might be included in a file compiled with -ansi. So |
@@ -84,34 +103,45 @@ |
identifying architectures, which are different to the ones we use |
within the rest of Valgrind. Note, __powerpc__ is active for both |
32 and 64-bit PPC, whereas __powerpc64__ is only active for the |
- latter (on Linux, that is). */ |
+ latter (on Linux, that is). |
+ |
+ Misc note: how to find out what's predefined in gcc by default: |
+ gcc -Wp,-dM somefile.c |
+*/ |
+#undef PLAT_ppc64_aix5 |
+#undef PLAT_ppc32_aix5 |
+#undef PLAT_x86_darwin |
+#undef PLAT_amd64_darwin |
+#undef PLAT_x86_win32 |
#undef PLAT_x86_linux |
#undef PLAT_amd64_linux |
#undef PLAT_ppc32_linux |
#undef PLAT_ppc64_linux |
-#undef PLAT_ppc32_aix5 |
-#undef PLAT_ppc64_aix5 |
+#undef PLAT_arm_linux |
-#if !defined(_AIX) && defined(__i386__) |
+#if defined(_AIX) && defined(__64BIT__) |
+# define PLAT_ppc64_aix5 1 |
+#elif defined(_AIX) && !defined(__64BIT__) |
+# define PLAT_ppc32_aix5 1 |
+#elif defined(__APPLE__) && defined(__i386__) |
+# define PLAT_x86_darwin 1 |
+#elif defined(__APPLE__) && defined(__x86_64__) |
+# define PLAT_amd64_darwin 1 |
+#elif defined(__MINGW32__) || defined(__CYGWIN32__) || defined(_WIN32) && defined(_M_IX86) |
+# define PLAT_x86_win32 1 |
+#elif defined(__linux__) && defined(__i386__) |
# define PLAT_x86_linux 1 |
-#elif !defined(_AIX) && defined(__x86_64__) |
+#elif defined(__linux__) && defined(__x86_64__) |
# define PLAT_amd64_linux 1 |
-#elif !defined(_AIX) && defined(__powerpc__) && !defined(__powerpc64__) |
+#elif defined(__linux__) && defined(__powerpc__) && !defined(__powerpc64__) |
# define PLAT_ppc32_linux 1 |
-#elif !defined(_AIX) && defined(__powerpc__) && defined(__powerpc64__) |
+#elif defined(__linux__) && defined(__powerpc__) && defined(__powerpc64__) |
# define PLAT_ppc64_linux 1 |
-#elif defined(_AIX) && defined(__64BIT__) |
-# define PLAT_ppc64_aix5 1 |
-#elif defined(_AIX) && !defined(__64BIT__) |
-# define PLAT_ppc32_aix5 1 |
-#endif |
- |
- |
+#elif defined(__linux__) && defined(__arm__) |
+# define PLAT_arm_linux 1 |
+#else |
/* If we're not compiling for our target platform, don't generate |
any inline asms. */ |
-#if !defined(PLAT_x86_linux) && !defined(PLAT_amd64_linux) \ |
- && !defined(PLAT_ppc32_linux) && !defined(PLAT_ppc64_linux) \ |
- && !defined(PLAT_ppc32_aix5) && !defined(PLAT_ppc64_aix5) |
# if !defined(NVALGRIND) |
# define NVALGRIND 1 |
# endif |
@@ -172,9 +202,10 @@ |
inline asm stuff to be useful. |
*/ |
-/* ------------------------- x86-linux ------------------------- */ |
+/* ------------------------- x86-{linux,darwin} ---------------- */ |
-#if defined(PLAT_x86_linux) |
+#if defined(PLAT_x86_linux) || defined(PLAT_x86_darwin) \ |
+ || (defined(PLAT_x86_win32) && defined(__GNUC__)) |
typedef |
struct { |
@@ -224,14 +255,69 @@ |
__SPECIAL_INSTRUCTION_PREAMBLE \ |
/* call-noredir *%EAX */ \ |
"xchgl %%edx,%%edx\n\t" |
-#endif /* PLAT_x86_linux */ |
+#endif /* PLAT_x86_linux || PLAT_x86_darwin || (PLAT_x86_win32 && __GNUC__) */ |
-/* ------------------------ amd64-linux ------------------------ */ |
+/* ------------------------- x86-Win32 ------------------------- */ |
-#if defined(PLAT_amd64_linux) |
+#if defined(PLAT_x86_win32) && !defined(__GNUC__) |
typedef |
struct { |
+ unsigned int nraddr; /* where's the code? */ |
+ } |
+ OrigFn; |
+ |
+#if defined(_MSC_VER) |
+ |
+#define __SPECIAL_INSTRUCTION_PREAMBLE \ |
+ __asm rol edi, 3 __asm rol edi, 13 \ |
+ __asm rol edi, 29 __asm rol edi, 19 |
+ |
+#define VALGRIND_DO_CLIENT_REQUEST( \ |
+ _zzq_rlval, _zzq_default, _zzq_request, \ |
+ _zzq_arg1, _zzq_arg2, _zzq_arg3, _zzq_arg4, _zzq_arg5) \ |
+ { volatile uintptr_t _zzq_args[6]; \ |
+ volatile unsigned int _zzq_result; \ |
+ _zzq_args[0] = (uintptr_t)(_zzq_request); \ |
+ _zzq_args[1] = (uintptr_t)(_zzq_arg1); \ |
+ _zzq_args[2] = (uintptr_t)(_zzq_arg2); \ |
+ _zzq_args[3] = (uintptr_t)(_zzq_arg3); \ |
+ _zzq_args[4] = (uintptr_t)(_zzq_arg4); \ |
+ _zzq_args[5] = (uintptr_t)(_zzq_arg5); \ |
+ __asm { __asm lea eax, _zzq_args __asm mov edx, _zzq_default \ |
+ __SPECIAL_INSTRUCTION_PREAMBLE \ |
+ /* %EDX = client_request ( %EAX ) */ \ |
+ __asm xchg ebx,ebx \ |
+ __asm mov _zzq_result, edx \ |
+ } \ |
+ _zzq_rlval = _zzq_result; \ |
+ } |
+ |
+#define VALGRIND_GET_NR_CONTEXT(_zzq_rlval) \ |
+ { volatile OrigFn* _zzq_orig = &(_zzq_rlval); \ |
+ volatile unsigned int __addr; \ |
+ __asm { __SPECIAL_INSTRUCTION_PREAMBLE \ |
+ /* %EAX = guest_NRADDR */ \ |
+ __asm xchg ecx,ecx \ |
+ __asm mov __addr, eax \ |
+ } \ |
+ _zzq_orig->nraddr = __addr; \ |
+ } |
+ |
+#define VALGRIND_CALL_NOREDIR_EAX ERROR |
+ |
+#else |
+#error Unsupported compiler. |
+#endif |
+ |
+#endif /* PLAT_x86_win32 */ |
+ |
+/* ------------------------ amd64-{linux,darwin} --------------- */ |
+ |
+#if defined(PLAT_amd64_linux) || defined(PLAT_amd64_darwin) |
+ |
+typedef |
+ struct { |
unsigned long long int nraddr; /* where's the code? */ |
} |
OrigFn; |
@@ -278,7 +364,7 @@ |
__SPECIAL_INSTRUCTION_PREAMBLE \ |
/* call-noredir *%RAX */ \ |
"xchgq %%rdx,%%rdx\n\t" |
-#endif /* PLAT_amd64_linux */ |
+#endif /* PLAT_amd64_linux || PLAT_amd64_darwin */ |
/* ------------------------ ppc32-linux ------------------------ */ |
@@ -406,6 +492,65 @@ |
#endif /* PLAT_ppc64_linux */ |
+/* ------------------------- arm-linux ------------------------- */ |
+ |
+#if defined(PLAT_arm_linux) |
+ |
+typedef |
+ struct { |
+ unsigned int nraddr; /* where's the code? */ |
+ } |
+ OrigFn; |
+ |
+#define __SPECIAL_INSTRUCTION_PREAMBLE \ |
+ "mov r12, r12, ror #3 ; mov r12, r12, ror #13 \n\t" \ |
+ "mov r12, r12, ror #29 ; mov r12, r12, ror #19 \n\t" |
+ |
+#define VALGRIND_DO_CLIENT_REQUEST( \ |
+ _zzq_rlval, _zzq_default, _zzq_request, \ |
+ _zzq_arg1, _zzq_arg2, _zzq_arg3, _zzq_arg4, _zzq_arg5) \ |
+ \ |
+ { volatile unsigned int _zzq_args[6]; \ |
+ volatile unsigned int _zzq_result; \ |
+ _zzq_args[0] = (unsigned int)(_zzq_request); \ |
+ _zzq_args[1] = (unsigned int)(_zzq_arg1); \ |
+ _zzq_args[2] = (unsigned int)(_zzq_arg2); \ |
+ _zzq_args[3] = (unsigned int)(_zzq_arg3); \ |
+ _zzq_args[4] = (unsigned int)(_zzq_arg4); \ |
+ _zzq_args[5] = (unsigned int)(_zzq_arg5); \ |
+ __asm__ volatile("mov r3, %1\n\t" /*default*/ \ |
+ "mov r4, %2\n\t" /*ptr*/ \ |
+ __SPECIAL_INSTRUCTION_PREAMBLE \ |
+ /* R3 = client_request ( R4 ) */ \ |
+ "orr r10, r10, r10\n\t" \ |
+ "mov %0, r3" /*result*/ \ |
+ : "=r" (_zzq_result) \ |
+ : "r" (_zzq_default), "r" (&_zzq_args[0]) \ |
+ : "cc","memory", "r3", "r4"); \ |
+ _zzq_rlval = _zzq_result; \ |
+ } |
+ |
+#define VALGRIND_GET_NR_CONTEXT(_zzq_rlval) \ |
+ { volatile OrigFn* _zzq_orig = &(_zzq_rlval); \ |
+ unsigned int __addr; \ |
+ __asm__ volatile(__SPECIAL_INSTRUCTION_PREAMBLE \ |
+ /* R3 = guest_NRADDR */ \ |
+ "orr r11, r11, r11\n\t" \ |
+ "mov %0, r3" \ |
+ : "=r" (__addr) \ |
+ : \ |
+ : "cc", "memory", "r3" \ |
+ ); \ |
+ _zzq_orig->nraddr = __addr; \ |
+ } |
+ |
+#define VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R4 \ |
+ __SPECIAL_INSTRUCTION_PREAMBLE \ |
+ /* branch-and-link-to-noredir *%R4 */ \ |
+ "orr r12, r12, r12\n\t" |
+ |
+#endif /* PLAT_arm_linux */ |
+ |
/* ------------------------ ppc32-aix5 ------------------------- */ |
#if defined(PLAT_ppc32_aix5) |
@@ -581,11 +726,15 @@ |
/* Use these to write the name of your wrapper. NOTE: duplicates |
VG_WRAP_FUNCTION_Z{U,Z} in pub_tool_redir.h. */ |
+/* Use an extra level of macroisation so as to ensure the soname/fnname |
+ args are fully macro-expanded before pasting them together. */ |
+#define VG_CONCAT4(_aa,_bb,_cc,_dd) _aa##_bb##_cc##_dd |
+ |
#define I_WRAP_SONAME_FNNAME_ZU(soname,fnname) \ |
- _vgwZU_##soname##_##fnname |
+ VG_CONCAT4(_vgwZU_,soname,_,fnname) |
#define I_WRAP_SONAME_FNNAME_ZZ(soname,fnname) \ |
- _vgwZZ_##soname##_##fnname |
+ VG_CONCAT4(_vgwZZ_,soname,_,fnname) |
/* Use this macro from within a wrapper function to collect the |
context (address and possibly other info) of the original function. |
@@ -612,10 +761,26 @@ |
do { volatile unsigned long _junk; \ |
CALL_FN_W_WWW(_junk,fnptr,arg1,arg2,arg3); } while (0) |
-/* ------------------------- x86-linux ------------------------- */ |
+#define CALL_FN_v_WWWW(fnptr, arg1,arg2,arg3,arg4) \ |
+ do { volatile unsigned long _junk; \ |
+ CALL_FN_W_WWWW(_junk,fnptr,arg1,arg2,arg3,arg4); } while (0) |
-#if defined(PLAT_x86_linux) |
+#define CALL_FN_v_5W(fnptr, arg1,arg2,arg3,arg4,arg5) \ |
+ do { volatile unsigned long _junk; \ |
+ CALL_FN_W_5W(_junk,fnptr,arg1,arg2,arg3,arg4,arg5); } while (0) |
+#define CALL_FN_v_6W(fnptr, arg1,arg2,arg3,arg4,arg5,arg6) \ |
+ do { volatile unsigned long _junk; \ |
+ CALL_FN_W_6W(_junk,fnptr,arg1,arg2,arg3,arg4,arg5,arg6); } while (0) |
+ |
+#define CALL_FN_v_7W(fnptr, arg1,arg2,arg3,arg4,arg5,arg6,arg7) \ |
+ do { volatile unsigned long _junk; \ |
+ CALL_FN_W_7W(_junk,fnptr,arg1,arg2,arg3,arg4,arg5,arg6,arg7); } while (0) |
+ |
+/* ------------------------- x86-{linux,darwin} ---------------- */ |
+ |
+#if defined(PLAT_x86_linux) || defined(PLAT_x86_darwin) |
+ |
/* These regs are trashed by the hidden call. No need to mention eax |
as gcc can already see that, plus causes gcc to bomb. */ |
#define __CALLER_SAVED_REGS /*"eax"*/ "ecx", "edx" |
@@ -647,10 +812,11 @@ |
_argvec[0] = (unsigned long)_orig.nraddr; \ |
_argvec[1] = (unsigned long)(arg1); \ |
__asm__ volatile( \ |
+ "subl $12, %%esp\n\t" \ |
"pushl 4(%%eax)\n\t" \ |
"movl (%%eax), %%eax\n\t" /* target->%eax */ \ |
VALGRIND_CALL_NOREDIR_EAX \ |
- "addl $4, %%esp\n" \ |
+ "addl $16, %%esp\n" \ |
: /*out*/ "=a" (_res) \ |
: /*in*/ "a" (&_argvec[0]) \ |
: /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ |
@@ -667,11 +833,12 @@ |
_argvec[1] = (unsigned long)(arg1); \ |
_argvec[2] = (unsigned long)(arg2); \ |
__asm__ volatile( \ |
+ "subl $8, %%esp\n\t" \ |
"pushl 8(%%eax)\n\t" \ |
"pushl 4(%%eax)\n\t" \ |
"movl (%%eax), %%eax\n\t" /* target->%eax */ \ |
VALGRIND_CALL_NOREDIR_EAX \ |
- "addl $8, %%esp\n" \ |
+ "addl $16, %%esp\n" \ |
: /*out*/ "=a" (_res) \ |
: /*in*/ "a" (&_argvec[0]) \ |
: /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ |
@@ -689,12 +856,13 @@ |
_argvec[2] = (unsigned long)(arg2); \ |
_argvec[3] = (unsigned long)(arg3); \ |
__asm__ volatile( \ |
+ "subl $4, %%esp\n\t" \ |
"pushl 12(%%eax)\n\t" \ |
"pushl 8(%%eax)\n\t" \ |
"pushl 4(%%eax)\n\t" \ |
"movl (%%eax), %%eax\n\t" /* target->%eax */ \ |
VALGRIND_CALL_NOREDIR_EAX \ |
- "addl $12, %%esp\n" \ |
+ "addl $16, %%esp\n" \ |
: /*out*/ "=a" (_res) \ |
: /*in*/ "a" (&_argvec[0]) \ |
: /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ |
@@ -739,6 +907,7 @@ |
_argvec[4] = (unsigned long)(arg4); \ |
_argvec[5] = (unsigned long)(arg5); \ |
__asm__ volatile( \ |
+ "subl $12, %%esp\n\t" \ |
"pushl 20(%%eax)\n\t" \ |
"pushl 16(%%eax)\n\t" \ |
"pushl 12(%%eax)\n\t" \ |
@@ -746,7 +915,7 @@ |
"pushl 4(%%eax)\n\t" \ |
"movl (%%eax), %%eax\n\t" /* target->%eax */ \ |
VALGRIND_CALL_NOREDIR_EAX \ |
- "addl $20, %%esp\n" \ |
+ "addl $32, %%esp\n" \ |
: /*out*/ "=a" (_res) \ |
: /*in*/ "a" (&_argvec[0]) \ |
: /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ |
@@ -767,6 +936,7 @@ |
_argvec[5] = (unsigned long)(arg5); \ |
_argvec[6] = (unsigned long)(arg6); \ |
__asm__ volatile( \ |
+ "subl $8, %%esp\n\t" \ |
"pushl 24(%%eax)\n\t" \ |
"pushl 20(%%eax)\n\t" \ |
"pushl 16(%%eax)\n\t" \ |
@@ -775,7 +945,7 @@ |
"pushl 4(%%eax)\n\t" \ |
"movl (%%eax), %%eax\n\t" /* target->%eax */ \ |
VALGRIND_CALL_NOREDIR_EAX \ |
- "addl $24, %%esp\n" \ |
+ "addl $32, %%esp\n" \ |
: /*out*/ "=a" (_res) \ |
: /*in*/ "a" (&_argvec[0]) \ |
: /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ |
@@ -798,6 +968,7 @@ |
_argvec[6] = (unsigned long)(arg6); \ |
_argvec[7] = (unsigned long)(arg7); \ |
__asm__ volatile( \ |
+ "subl $4, %%esp\n\t" \ |
"pushl 28(%%eax)\n\t" \ |
"pushl 24(%%eax)\n\t" \ |
"pushl 20(%%eax)\n\t" \ |
@@ -807,7 +978,7 @@ |
"pushl 4(%%eax)\n\t" \ |
"movl (%%eax), %%eax\n\t" /* target->%eax */ \ |
VALGRIND_CALL_NOREDIR_EAX \ |
- "addl $28, %%esp\n" \ |
+ "addl $32, %%esp\n" \ |
: /*out*/ "=a" (_res) \ |
: /*in*/ "a" (&_argvec[0]) \ |
: /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ |
@@ -866,6 +1037,7 @@ |
_argvec[8] = (unsigned long)(arg8); \ |
_argvec[9] = (unsigned long)(arg9); \ |
__asm__ volatile( \ |
+ "subl $12, %%esp\n\t" \ |
"pushl 36(%%eax)\n\t" \ |
"pushl 32(%%eax)\n\t" \ |
"pushl 28(%%eax)\n\t" \ |
@@ -877,7 +1049,7 @@ |
"pushl 4(%%eax)\n\t" \ |
"movl (%%eax), %%eax\n\t" /* target->%eax */ \ |
VALGRIND_CALL_NOREDIR_EAX \ |
- "addl $36, %%esp\n" \ |
+ "addl $48, %%esp\n" \ |
: /*out*/ "=a" (_res) \ |
: /*in*/ "a" (&_argvec[0]) \ |
: /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ |
@@ -903,6 +1075,7 @@ |
_argvec[9] = (unsigned long)(arg9); \ |
_argvec[10] = (unsigned long)(arg10); \ |
__asm__ volatile( \ |
+ "subl $8, %%esp\n\t" \ |
"pushl 40(%%eax)\n\t" \ |
"pushl 36(%%eax)\n\t" \ |
"pushl 32(%%eax)\n\t" \ |
@@ -915,7 +1088,7 @@ |
"pushl 4(%%eax)\n\t" \ |
"movl (%%eax), %%eax\n\t" /* target->%eax */ \ |
VALGRIND_CALL_NOREDIR_EAX \ |
- "addl $40, %%esp\n" \ |
+ "addl $48, %%esp\n" \ |
: /*out*/ "=a" (_res) \ |
: /*in*/ "a" (&_argvec[0]) \ |
: /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ |
@@ -943,6 +1116,7 @@ |
_argvec[10] = (unsigned long)(arg10); \ |
_argvec[11] = (unsigned long)(arg11); \ |
__asm__ volatile( \ |
+ "subl $4, %%esp\n\t" \ |
"pushl 44(%%eax)\n\t" \ |
"pushl 40(%%eax)\n\t" \ |
"pushl 36(%%eax)\n\t" \ |
@@ -956,7 +1130,7 @@ |
"pushl 4(%%eax)\n\t" \ |
"movl (%%eax), %%eax\n\t" /* target->%eax */ \ |
VALGRIND_CALL_NOREDIR_EAX \ |
- "addl $44, %%esp\n" \ |
+ "addl $48, %%esp\n" \ |
: /*out*/ "=a" (_res) \ |
: /*in*/ "a" (&_argvec[0]) \ |
: /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ |
@@ -1007,11 +1181,11 @@ |
lval = (__typeof__(lval)) _res; \ |
} while (0) |
-#endif /* PLAT_x86_linux */ |
+#endif /* PLAT_x86_linux || PLAT_x86_darwin */ |
-/* ------------------------ amd64-linux ------------------------ */ |
+/* ------------------------ amd64-{linux,darwin} --------------- */ |
-#if defined(PLAT_amd64_linux) |
+#if defined(PLAT_amd64_linux) || defined(PLAT_amd64_darwin) |
/* ARGREGS: rdi rsi rdx rcx r8 r9 (the rest on stack in R-to-L order) */ |
@@ -1019,6 +1193,78 @@ |
#define __CALLER_SAVED_REGS /*"rax",*/ "rcx", "rdx", "rsi", \ |
"rdi", "r8", "r9", "r10", "r11" |
+/* This is all pretty complex. It's so as to make stack unwinding |
+ work reliably. See bug 243270. The basic problem is the sub and |
+ add of 128 of %rsp in all of the following macros. If gcc believes |
+ the CFA is in %rsp, then unwinding may fail, because what's at the |
+ CFA is not what gcc "expected" when it constructs the CFIs for the |
+ places where the macros are instantiated. |
+ |
+ But we can't just add a CFI annotation to increase the CFA offset |
+ by 128, to match the sub of 128 from %rsp, because we don't know |
+ whether gcc has chosen %rsp as the CFA at that point, or whether it |
+ has chosen some other register (eg, %rbp). In the latter case, |
+ adding a CFI annotation to change the CFA offset is simply wrong. |
+ |
+ So the solution is to get hold of the CFA using |
+ __builtin_dwarf_cfa(), put it in a known register, and add a |
+ CFI annotation to say what the register is. We choose %rbp for |
+ this (perhaps perversely), because: |
+ |
+ (1) %rbp is already subject to unwinding. If a new register was |
+ chosen then the unwinder would have to unwind it in all stack |
+ traces, which is expensive, and |
+ |
+ (2) %rbp is already subject to precise exception updates in the |
+ JIT. If a new register was chosen, we'd have to have precise |
+ exceptions for it too, which reduces performance of the |
+ generated code. |
+ |
+ However .. one extra complication. We can't just whack the result |
+ of __builtin_dwarf_cfa() into %rbp and then add %rbp to the |
+ list of trashed registers at the end of the inline assembly |
+ fragments; gcc won't allow %rbp to appear in that list. Hence |
+ instead we need to stash %rbp in %r15 for the duration of the asm, |
+ and say that %r15 is trashed instead. gcc seems happy to go with |
+ that. |
+ |
+ Oh .. and this all needs to be conditionalised so that it is |
+ unchanged from before this commit, when compiled with older gccs |
+ that don't support __builtin_dwarf_cfa. Furthermore, since |
+ this header file is freestanding, it has to be independent of |
+ config.h, and so the following conditionalisation cannot depend on |
+ configure time checks. |
+ |
+ Although it's not clear from |
+ 'defined(__GNUC__) && defined(__GCC_HAVE_DWARF2_CFI_ASM)', |
+ this expression excludes Darwin. |
+ .cfi directives in Darwin assembly appear to be completely |
+ different and I haven't investigated how they work. |
+ |
+ For even more entertainment value, note we have to use the |
+ completely undocumented __builtin_dwarf_cfa(), which appears to |
+ really compute the CFA, whereas __builtin_frame_address(0) claims |
+ to but actually doesn't. See |
+ https://bugs.kde.org/show_bug.cgi?id=243270#c47 |
+*/ |
+#if defined(__GNUC__) && defined(__GCC_HAVE_DWARF2_CFI_ASM) |
+# define __FRAME_POINTER \ |
+ ,"r"(__builtin_dwarf_cfa()) |
+# define VALGRIND_CFI_PROLOGUE \ |
+ "movq %%rbp, %%r15\n\t" \ |
+ "movq %2, %%rbp\n\t" \ |
+ ".cfi_remember_state\n\t" \ |
+ ".cfi_def_cfa rbp, 0\n\t" |
+# define VALGRIND_CFI_EPILOGUE \ |
+ "movq %%r15, %%rbp\n\t" \ |
+ ".cfi_restore_state\n\t" |
+#else |
+# define __FRAME_POINTER |
+# define VALGRIND_CFI_PROLOGUE |
+# define VALGRIND_CFI_EPILOGUE |
+#endif |
+ |
+ |
/* These CALL_FN_ macros assume that on amd64-linux, sizeof(unsigned |
long) == 8. */ |
@@ -1050,13 +1296,15 @@ |
volatile unsigned long _res; \ |
_argvec[0] = (unsigned long)_orig.nraddr; \ |
__asm__ volatile( \ |
+ VALGRIND_CFI_PROLOGUE \ |
"subq $128,%%rsp\n\t" \ |
"movq (%%rax), %%rax\n\t" /* target->%rax */ \ |
VALGRIND_CALL_NOREDIR_RAX \ |
"addq $128,%%rsp\n\t" \ |
+ VALGRIND_CFI_EPILOGUE \ |
: /*out*/ "=a" (_res) \ |
- : /*in*/ "a" (&_argvec[0]) \ |
- : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ |
+ : /*in*/ "a" (&_argvec[0]) __FRAME_POINTER \ |
+ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS, "r15" \ |
); \ |
lval = (__typeof__(lval)) _res; \ |
} while (0) |
@@ -1069,14 +1317,16 @@ |
_argvec[0] = (unsigned long)_orig.nraddr; \ |
_argvec[1] = (unsigned long)(arg1); \ |
__asm__ volatile( \ |
+ VALGRIND_CFI_PROLOGUE \ |
"subq $128,%%rsp\n\t" \ |
"movq 8(%%rax), %%rdi\n\t" \ |
"movq (%%rax), %%rax\n\t" /* target->%rax */ \ |
VALGRIND_CALL_NOREDIR_RAX \ |
"addq $128,%%rsp\n\t" \ |
+ VALGRIND_CFI_EPILOGUE \ |
: /*out*/ "=a" (_res) \ |
- : /*in*/ "a" (&_argvec[0]) \ |
- : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ |
+ : /*in*/ "a" (&_argvec[0]) __FRAME_POINTER \ |
+ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS, "r15" \ |
); \ |
lval = (__typeof__(lval)) _res; \ |
} while (0) |
@@ -1090,15 +1340,17 @@ |
_argvec[1] = (unsigned long)(arg1); \ |
_argvec[2] = (unsigned long)(arg2); \ |
__asm__ volatile( \ |
+ VALGRIND_CFI_PROLOGUE \ |
"subq $128,%%rsp\n\t" \ |
"movq 16(%%rax), %%rsi\n\t" \ |
"movq 8(%%rax), %%rdi\n\t" \ |
"movq (%%rax), %%rax\n\t" /* target->%rax */ \ |
VALGRIND_CALL_NOREDIR_RAX \ |
"addq $128,%%rsp\n\t" \ |
+ VALGRIND_CFI_EPILOGUE \ |
: /*out*/ "=a" (_res) \ |
- : /*in*/ "a" (&_argvec[0]) \ |
- : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ |
+ : /*in*/ "a" (&_argvec[0]) __FRAME_POINTER \ |
+ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS, "r15" \ |
); \ |
lval = (__typeof__(lval)) _res; \ |
} while (0) |
@@ -1113,6 +1365,7 @@ |
_argvec[2] = (unsigned long)(arg2); \ |
_argvec[3] = (unsigned long)(arg3); \ |
__asm__ volatile( \ |
+ VALGRIND_CFI_PROLOGUE \ |
"subq $128,%%rsp\n\t" \ |
"movq 24(%%rax), %%rdx\n\t" \ |
"movq 16(%%rax), %%rsi\n\t" \ |
@@ -1120,9 +1373,10 @@ |
"movq (%%rax), %%rax\n\t" /* target->%rax */ \ |
VALGRIND_CALL_NOREDIR_RAX \ |
"addq $128,%%rsp\n\t" \ |
+ VALGRIND_CFI_EPILOGUE \ |
: /*out*/ "=a" (_res) \ |
- : /*in*/ "a" (&_argvec[0]) \ |
- : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ |
+ : /*in*/ "a" (&_argvec[0]) __FRAME_POINTER \ |
+ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS, "r15" \ |
); \ |
lval = (__typeof__(lval)) _res; \ |
} while (0) |
@@ -1138,6 +1392,7 @@ |
_argvec[3] = (unsigned long)(arg3); \ |
_argvec[4] = (unsigned long)(arg4); \ |
__asm__ volatile( \ |
+ VALGRIND_CFI_PROLOGUE \ |
"subq $128,%%rsp\n\t" \ |
"movq 32(%%rax), %%rcx\n\t" \ |
"movq 24(%%rax), %%rdx\n\t" \ |
@@ -1146,9 +1401,10 @@ |
"movq (%%rax), %%rax\n\t" /* target->%rax */ \ |
VALGRIND_CALL_NOREDIR_RAX \ |
"addq $128,%%rsp\n\t" \ |
+ VALGRIND_CFI_EPILOGUE \ |
: /*out*/ "=a" (_res) \ |
- : /*in*/ "a" (&_argvec[0]) \ |
- : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ |
+ : /*in*/ "a" (&_argvec[0]) __FRAME_POINTER \ |
+ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS, "r15" \ |
); \ |
lval = (__typeof__(lval)) _res; \ |
} while (0) |
@@ -1165,6 +1421,7 @@ |
_argvec[4] = (unsigned long)(arg4); \ |
_argvec[5] = (unsigned long)(arg5); \ |
__asm__ volatile( \ |
+ VALGRIND_CFI_PROLOGUE \ |
"subq $128,%%rsp\n\t" \ |
"movq 40(%%rax), %%r8\n\t" \ |
"movq 32(%%rax), %%rcx\n\t" \ |
@@ -1174,9 +1431,10 @@ |
"movq (%%rax), %%rax\n\t" /* target->%rax */ \ |
VALGRIND_CALL_NOREDIR_RAX \ |
"addq $128,%%rsp\n\t" \ |
+ VALGRIND_CFI_EPILOGUE \ |
: /*out*/ "=a" (_res) \ |
- : /*in*/ "a" (&_argvec[0]) \ |
- : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ |
+ : /*in*/ "a" (&_argvec[0]) __FRAME_POINTER \ |
+ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS, "r15" \ |
); \ |
lval = (__typeof__(lval)) _res; \ |
} while (0) |
@@ -1194,6 +1452,7 @@ |
_argvec[5] = (unsigned long)(arg5); \ |
_argvec[6] = (unsigned long)(arg6); \ |
__asm__ volatile( \ |
+ VALGRIND_CFI_PROLOGUE \ |
"subq $128,%%rsp\n\t" \ |
"movq 48(%%rax), %%r9\n\t" \ |
"movq 40(%%rax), %%r8\n\t" \ |
@@ -1202,11 +1461,12 @@ |
"movq 16(%%rax), %%rsi\n\t" \ |
"movq 8(%%rax), %%rdi\n\t" \ |
"movq (%%rax), %%rax\n\t" /* target->%rax */ \ |
+ VALGRIND_CALL_NOREDIR_RAX \ |
"addq $128,%%rsp\n\t" \ |
- VALGRIND_CALL_NOREDIR_RAX \ |
+ VALGRIND_CFI_EPILOGUE \ |
: /*out*/ "=a" (_res) \ |
- : /*in*/ "a" (&_argvec[0]) \ |
- : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ |
+ : /*in*/ "a" (&_argvec[0]) __FRAME_POINTER \ |
+ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS, "r15" \ |
); \ |
lval = (__typeof__(lval)) _res; \ |
} while (0) |
@@ -1226,7 +1486,8 @@ |
_argvec[6] = (unsigned long)(arg6); \ |
_argvec[7] = (unsigned long)(arg7); \ |
__asm__ volatile( \ |
- "subq $128,%%rsp\n\t" \ |
+ VALGRIND_CFI_PROLOGUE \ |
+ "subq $136,%%rsp\n\t" \ |
"pushq 56(%%rax)\n\t" \ |
"movq 48(%%rax), %%r9\n\t" \ |
"movq 40(%%rax), %%r8\n\t" \ |
@@ -1237,10 +1498,11 @@ |
"movq (%%rax), %%rax\n\t" /* target->%rax */ \ |
VALGRIND_CALL_NOREDIR_RAX \ |
"addq $8, %%rsp\n" \ |
- "addq $128,%%rsp\n\t" \ |
+ "addq $136,%%rsp\n\t" \ |
+ VALGRIND_CFI_EPILOGUE \ |
: /*out*/ "=a" (_res) \ |
- : /*in*/ "a" (&_argvec[0]) \ |
- : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ |
+ : /*in*/ "a" (&_argvec[0]) __FRAME_POINTER \ |
+ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS, "r15" \ |
); \ |
lval = (__typeof__(lval)) _res; \ |
} while (0) |
@@ -1261,6 +1523,7 @@ |
_argvec[7] = (unsigned long)(arg7); \ |
_argvec[8] = (unsigned long)(arg8); \ |
__asm__ volatile( \ |
+ VALGRIND_CFI_PROLOGUE \ |
"subq $128,%%rsp\n\t" \ |
"pushq 64(%%rax)\n\t" \ |
"pushq 56(%%rax)\n\t" \ |
@@ -1274,9 +1537,10 @@ |
VALGRIND_CALL_NOREDIR_RAX \ |
"addq $16, %%rsp\n" \ |
"addq $128,%%rsp\n\t" \ |
+ VALGRIND_CFI_EPILOGUE \ |
: /*out*/ "=a" (_res) \ |
- : /*in*/ "a" (&_argvec[0]) \ |
- : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ |
+ : /*in*/ "a" (&_argvec[0]) __FRAME_POINTER \ |
+ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS, "r15" \ |
); \ |
lval = (__typeof__(lval)) _res; \ |
} while (0) |
@@ -1298,7 +1562,8 @@ |
_argvec[8] = (unsigned long)(arg8); \ |
_argvec[9] = (unsigned long)(arg9); \ |
__asm__ volatile( \ |
- "subq $128,%%rsp\n\t" \ |
+ VALGRIND_CFI_PROLOGUE \ |
+ "subq $136,%%rsp\n\t" \ |
"pushq 72(%%rax)\n\t" \ |
"pushq 64(%%rax)\n\t" \ |
"pushq 56(%%rax)\n\t" \ |
@@ -1311,10 +1576,11 @@ |
"movq (%%rax), %%rax\n\t" /* target->%rax */ \ |
VALGRIND_CALL_NOREDIR_RAX \ |
"addq $24, %%rsp\n" \ |
- "addq $128,%%rsp\n\t" \ |
+ "addq $136,%%rsp\n\t" \ |
+ VALGRIND_CFI_EPILOGUE \ |
: /*out*/ "=a" (_res) \ |
- : /*in*/ "a" (&_argvec[0]) \ |
- : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ |
+ : /*in*/ "a" (&_argvec[0]) __FRAME_POINTER \ |
+ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS, "r15" \ |
); \ |
lval = (__typeof__(lval)) _res; \ |
} while (0) |
@@ -1337,6 +1603,7 @@ |
_argvec[9] = (unsigned long)(arg9); \ |
_argvec[10] = (unsigned long)(arg10); \ |
__asm__ volatile( \ |
+ VALGRIND_CFI_PROLOGUE \ |
"subq $128,%%rsp\n\t" \ |
"pushq 80(%%rax)\n\t" \ |
"pushq 72(%%rax)\n\t" \ |
@@ -1352,9 +1619,10 @@ |
VALGRIND_CALL_NOREDIR_RAX \ |
"addq $32, %%rsp\n" \ |
"addq $128,%%rsp\n\t" \ |
+ VALGRIND_CFI_EPILOGUE \ |
: /*out*/ "=a" (_res) \ |
- : /*in*/ "a" (&_argvec[0]) \ |
- : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ |
+ : /*in*/ "a" (&_argvec[0]) __FRAME_POINTER \ |
+ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS, "r15" \ |
); \ |
lval = (__typeof__(lval)) _res; \ |
} while (0) |
@@ -1378,7 +1646,8 @@ |
_argvec[10] = (unsigned long)(arg10); \ |
_argvec[11] = (unsigned long)(arg11); \ |
__asm__ volatile( \ |
- "subq $128,%%rsp\n\t" \ |
+ VALGRIND_CFI_PROLOGUE \ |
+ "subq $136,%%rsp\n\t" \ |
"pushq 88(%%rax)\n\t" \ |
"pushq 80(%%rax)\n\t" \ |
"pushq 72(%%rax)\n\t" \ |
@@ -1393,10 +1662,11 @@ |
"movq (%%rax), %%rax\n\t" /* target->%rax */ \ |
VALGRIND_CALL_NOREDIR_RAX \ |
"addq $40, %%rsp\n" \ |
- "addq $128,%%rsp\n\t" \ |
+ "addq $136,%%rsp\n\t" \ |
+ VALGRIND_CFI_EPILOGUE \ |
: /*out*/ "=a" (_res) \ |
- : /*in*/ "a" (&_argvec[0]) \ |
- : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ |
+ : /*in*/ "a" (&_argvec[0]) __FRAME_POINTER \ |
+ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS, "r15" \ |
); \ |
lval = (__typeof__(lval)) _res; \ |
} while (0) |
@@ -1421,6 +1691,7 @@ |
_argvec[11] = (unsigned long)(arg11); \ |
_argvec[12] = (unsigned long)(arg12); \ |
__asm__ volatile( \ |
+ VALGRIND_CFI_PROLOGUE \ |
"subq $128,%%rsp\n\t" \ |
"pushq 96(%%rax)\n\t" \ |
"pushq 88(%%rax)\n\t" \ |
@@ -1438,14 +1709,15 @@ |
VALGRIND_CALL_NOREDIR_RAX \ |
"addq $48, %%rsp\n" \ |
"addq $128,%%rsp\n\t" \ |
+ VALGRIND_CFI_EPILOGUE \ |
: /*out*/ "=a" (_res) \ |
- : /*in*/ "a" (&_argvec[0]) \ |
- : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ |
+ : /*in*/ "a" (&_argvec[0]) __FRAME_POINTER \ |
+ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS, "r15" \ |
); \ |
lval = (__typeof__(lval)) _res; \ |
} while (0) |
-#endif /* PLAT_amd64_linux */ |
+#endif /* PLAT_amd64_linux || PLAT_amd64_darwin */ |
/* ------------------------ ppc32-linux ------------------------ */ |
@@ -2438,6 +2710,422 @@ |
#endif /* PLAT_ppc64_linux */ |
+/* ------------------------- arm-linux ------------------------- */ |
+ |
+#if defined(PLAT_arm_linux) |
+ |
+/* These regs are trashed by the hidden call. */ |
+#define __CALLER_SAVED_REGS "r0", "r1", "r2", "r3","r4","r14" |
+ |
+/* These CALL_FN_ macros assume that on arm-linux, sizeof(unsigned |
+ long) == 4. */ |
+ |
+#define CALL_FN_W_v(lval, orig) \ |
+ do { \ |
+ volatile OrigFn _orig = (orig); \ |
+ volatile unsigned long _argvec[1]; \ |
+ volatile unsigned long _res; \ |
+ _argvec[0] = (unsigned long)_orig.nraddr; \ |
+ __asm__ volatile( \ |
+ "ldr r4, [%1] \n\t" /* target->r4 */ \ |
+ VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R4 \ |
+ "mov %0, r0\n" \ |
+ : /*out*/ "=r" (_res) \ |
+ : /*in*/ "0" (&_argvec[0]) \ |
+ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ |
+ ); \ |
+ lval = (__typeof__(lval)) _res; \ |
+ } while (0) |
+ |
+#define CALL_FN_W_W(lval, orig, arg1) \ |
+ do { \ |
+ volatile OrigFn _orig = (orig); \ |
+ volatile unsigned long _argvec[2]; \ |
+ volatile unsigned long _res; \ |
+ _argvec[0] = (unsigned long)_orig.nraddr; \ |
+ _argvec[1] = (unsigned long)(arg1); \ |
+ __asm__ volatile( \ |
+ "ldr r0, [%1, #4] \n\t" \ |
+ "ldr r4, [%1] \n\t" /* target->r4 */ \ |
+ VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R4 \ |
+ "mov %0, r0\n" \ |
+ : /*out*/ "=r" (_res) \ |
+ : /*in*/ "0" (&_argvec[0]) \ |
+ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ |
+ ); \ |
+ lval = (__typeof__(lval)) _res; \ |
+ } while (0) |
+ |
+#define CALL_FN_W_WW(lval, orig, arg1,arg2) \ |
+ do { \ |
+ volatile OrigFn _orig = (orig); \ |
+ volatile unsigned long _argvec[3]; \ |
+ volatile unsigned long _res; \ |
+ _argvec[0] = (unsigned long)_orig.nraddr; \ |
+ _argvec[1] = (unsigned long)(arg1); \ |
+ _argvec[2] = (unsigned long)(arg2); \ |
+ __asm__ volatile( \ |
+ "ldr r0, [%1, #4] \n\t" \ |
+ "ldr r1, [%1, #8] \n\t" \ |
+ "ldr r4, [%1] \n\t" /* target->r4 */ \ |
+ VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R4 \ |
+ "mov %0, r0\n" \ |
+ : /*out*/ "=r" (_res) \ |
+ : /*in*/ "0" (&_argvec[0]) \ |
+ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ |
+ ); \ |
+ lval = (__typeof__(lval)) _res; \ |
+ } while (0) |
+ |
+#define CALL_FN_W_WWW(lval, orig, arg1,arg2,arg3) \ |
+ do { \ |
+ volatile OrigFn _orig = (orig); \ |
+ volatile unsigned long _argvec[4]; \ |
+ volatile unsigned long _res; \ |
+ _argvec[0] = (unsigned long)_orig.nraddr; \ |
+ _argvec[1] = (unsigned long)(arg1); \ |
+ _argvec[2] = (unsigned long)(arg2); \ |
+ _argvec[3] = (unsigned long)(arg3); \ |
+ __asm__ volatile( \ |
+ "ldr r0, [%1, #4] \n\t" \ |
+ "ldr r1, [%1, #8] \n\t" \ |
+ "ldr r2, [%1, #12] \n\t" \ |
+ "ldr r4, [%1] \n\t" /* target->r4 */ \ |
+ VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R4 \ |
+ "mov %0, r0\n" \ |
+ : /*out*/ "=r" (_res) \ |
+ : /*in*/ "0" (&_argvec[0]) \ |
+ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ |
+ ); \ |
+ lval = (__typeof__(lval)) _res; \ |
+ } while (0) |
+ |
+#define CALL_FN_W_WWWW(lval, orig, arg1,arg2,arg3,arg4) \ |
+ do { \ |
+ volatile OrigFn _orig = (orig); \ |
+ volatile unsigned long _argvec[5]; \ |
+ volatile unsigned long _res; \ |
+ _argvec[0] = (unsigned long)_orig.nraddr; \ |
+ _argvec[1] = (unsigned long)(arg1); \ |
+ _argvec[2] = (unsigned long)(arg2); \ |
+ _argvec[3] = (unsigned long)(arg3); \ |
+ _argvec[4] = (unsigned long)(arg4); \ |
+ __asm__ volatile( \ |
+ "ldr r0, [%1, #4] \n\t" \ |
+ "ldr r1, [%1, #8] \n\t" \ |
+ "ldr r2, [%1, #12] \n\t" \ |
+ "ldr r3, [%1, #16] \n\t" \ |
+ "ldr r4, [%1] \n\t" /* target->r4 */ \ |
+ VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R4 \ |
+ "mov %0, r0" \ |
+ : /*out*/ "=r" (_res) \ |
+ : /*in*/ "0" (&_argvec[0]) \ |
+ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ |
+ ); \ |
+ lval = (__typeof__(lval)) _res; \ |
+ } while (0) |
+ |
+#define CALL_FN_W_5W(lval, orig, arg1,arg2,arg3,arg4,arg5) \ |
+ do { \ |
+ volatile OrigFn _orig = (orig); \ |
+ volatile unsigned long _argvec[6]; \ |
+ volatile unsigned long _res; \ |
+ _argvec[0] = (unsigned long)_orig.nraddr; \ |
+ _argvec[1] = (unsigned long)(arg1); \ |
+ _argvec[2] = (unsigned long)(arg2); \ |
+ _argvec[3] = (unsigned long)(arg3); \ |
+ _argvec[4] = (unsigned long)(arg4); \ |
+ _argvec[5] = (unsigned long)(arg5); \ |
+ __asm__ volatile( \ |
+ "ldr r0, [%1, #20] \n\t" \ |
+ "push {r0} \n\t" \ |
+ "ldr r0, [%1, #4] \n\t" \ |
+ "ldr r1, [%1, #8] \n\t" \ |
+ "ldr r2, [%1, #12] \n\t" \ |
+ "ldr r3, [%1, #16] \n\t" \ |
+ "ldr r4, [%1] \n\t" /* target->r4 */ \ |
+ VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R4 \ |
+ "add sp, sp, #4 \n\t" \ |
+ "mov %0, r0" \ |
+ : /*out*/ "=r" (_res) \ |
+ : /*in*/ "0" (&_argvec[0]) \ |
+ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ |
+ ); \ |
+ lval = (__typeof__(lval)) _res; \ |
+ } while (0) |
+ |
+#define CALL_FN_W_6W(lval, orig, arg1,arg2,arg3,arg4,arg5,arg6) \ |
+ do { \ |
+ volatile OrigFn _orig = (orig); \ |
+ volatile unsigned long _argvec[7]; \ |
+ volatile unsigned long _res; \ |
+ _argvec[0] = (unsigned long)_orig.nraddr; \ |
+ _argvec[1] = (unsigned long)(arg1); \ |
+ _argvec[2] = (unsigned long)(arg2); \ |
+ _argvec[3] = (unsigned long)(arg3); \ |
+ _argvec[4] = (unsigned long)(arg4); \ |
+ _argvec[5] = (unsigned long)(arg5); \ |
+ _argvec[6] = (unsigned long)(arg6); \ |
+ __asm__ volatile( \ |
+ "ldr r0, [%1, #20] \n\t" \ |
+ "ldr r1, [%1, #24] \n\t" \ |
+ "push {r0, r1} \n\t" \ |
+ "ldr r0, [%1, #4] \n\t" \ |
+ "ldr r1, [%1, #8] \n\t" \ |
+ "ldr r2, [%1, #12] \n\t" \ |
+ "ldr r3, [%1, #16] \n\t" \ |
+ "ldr r4, [%1] \n\t" /* target->r4 */ \ |
+ VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R4 \ |
+ "add sp, sp, #8 \n\t" \ |
+ "mov %0, r0" \ |
+ : /*out*/ "=r" (_res) \ |
+ : /*in*/ "0" (&_argvec[0]) \ |
+ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ |
+ ); \ |
+ lval = (__typeof__(lval)) _res; \ |
+ } while (0) |
+ |
+#define CALL_FN_W_7W(lval, orig, arg1,arg2,arg3,arg4,arg5,arg6, \ |
+ arg7) \ |
+ do { \ |
+ volatile OrigFn _orig = (orig); \ |
+ volatile unsigned long _argvec[8]; \ |
+ volatile unsigned long _res; \ |
+ _argvec[0] = (unsigned long)_orig.nraddr; \ |
+ _argvec[1] = (unsigned long)(arg1); \ |
+ _argvec[2] = (unsigned long)(arg2); \ |
+ _argvec[3] = (unsigned long)(arg3); \ |
+ _argvec[4] = (unsigned long)(arg4); \ |
+ _argvec[5] = (unsigned long)(arg5); \ |
+ _argvec[6] = (unsigned long)(arg6); \ |
+ _argvec[7] = (unsigned long)(arg7); \ |
+ __asm__ volatile( \ |
+ "ldr r0, [%1, #20] \n\t" \ |
+ "ldr r1, [%1, #24] \n\t" \ |
+ "ldr r2, [%1, #28] \n\t" \ |
+ "push {r0, r1, r2} \n\t" \ |
+ "ldr r0, [%1, #4] \n\t" \ |
+ "ldr r1, [%1, #8] \n\t" \ |
+ "ldr r2, [%1, #12] \n\t" \ |
+ "ldr r3, [%1, #16] \n\t" \ |
+ "ldr r4, [%1] \n\t" /* target->r4 */ \ |
+ VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R4 \ |
+ "add sp, sp, #12 \n\t" \ |
+ "mov %0, r0" \ |
+ : /*out*/ "=r" (_res) \ |
+ : /*in*/ "0" (&_argvec[0]) \ |
+ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ |
+ ); \ |
+ lval = (__typeof__(lval)) _res; \ |
+ } while (0) |
+ |
+#define CALL_FN_W_8W(lval, orig, arg1,arg2,arg3,arg4,arg5,arg6, \ |
+ arg7,arg8) \ |
+ do { \ |
+ volatile OrigFn _orig = (orig); \ |
+ volatile unsigned long _argvec[9]; \ |
+ volatile unsigned long _res; \ |
+ _argvec[0] = (unsigned long)_orig.nraddr; \ |
+ _argvec[1] = (unsigned long)(arg1); \ |
+ _argvec[2] = (unsigned long)(arg2); \ |
+ _argvec[3] = (unsigned long)(arg3); \ |
+ _argvec[4] = (unsigned long)(arg4); \ |
+ _argvec[5] = (unsigned long)(arg5); \ |
+ _argvec[6] = (unsigned long)(arg6); \ |
+ _argvec[7] = (unsigned long)(arg7); \ |
+ _argvec[8] = (unsigned long)(arg8); \ |
+ __asm__ volatile( \ |
+ "ldr r0, [%1, #20] \n\t" \ |
+ "ldr r1, [%1, #24] \n\t" \ |
+ "ldr r2, [%1, #28] \n\t" \ |
+ "ldr r3, [%1, #32] \n\t" \ |
+ "push {r0, r1, r2, r3} \n\t" \ |
+ "ldr r0, [%1, #4] \n\t" \ |
+ "ldr r1, [%1, #8] \n\t" \ |
+ "ldr r2, [%1, #12] \n\t" \ |
+ "ldr r3, [%1, #16] \n\t" \ |
+ "ldr r4, [%1] \n\t" /* target->r4 */ \ |
+ VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R4 \ |
+ "add sp, sp, #16 \n\t" \ |
+ "mov %0, r0" \ |
+ : /*out*/ "=r" (_res) \ |
+ : /*in*/ "0" (&_argvec[0]) \ |
+ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ |
+ ); \ |
+ lval = (__typeof__(lval)) _res; \ |
+ } while (0) |
+ |
+#define CALL_FN_W_9W(lval, orig, arg1,arg2,arg3,arg4,arg5,arg6, \ |
+ arg7,arg8,arg9) \ |
+ do { \ |
+ volatile OrigFn _orig = (orig); \ |
+ volatile unsigned long _argvec[10]; \ |
+ volatile unsigned long _res; \ |
+ _argvec[0] = (unsigned long)_orig.nraddr; \ |
+ _argvec[1] = (unsigned long)(arg1); \ |
+ _argvec[2] = (unsigned long)(arg2); \ |
+ _argvec[3] = (unsigned long)(arg3); \ |
+ _argvec[4] = (unsigned long)(arg4); \ |
+ _argvec[5] = (unsigned long)(arg5); \ |
+ _argvec[6] = (unsigned long)(arg6); \ |
+ _argvec[7] = (unsigned long)(arg7); \ |
+ _argvec[8] = (unsigned long)(arg8); \ |
+ _argvec[9] = (unsigned long)(arg9); \ |
+ __asm__ volatile( \ |
+ "ldr r0, [%1, #20] \n\t" \ |
+ "ldr r1, [%1, #24] \n\t" \ |
+ "ldr r2, [%1, #28] \n\t" \ |
+ "ldr r3, [%1, #32] \n\t" \ |
+ "ldr r4, [%1, #36] \n\t" \ |
+ "push {r0, r1, r2, r3, r4} \n\t" \ |
+ "ldr r0, [%1, #4] \n\t" \ |
+ "ldr r1, [%1, #8] \n\t" \ |
+ "ldr r2, [%1, #12] \n\t" \ |
+ "ldr r3, [%1, #16] \n\t" \ |
+ "ldr r4, [%1] \n\t" /* target->r4 */ \ |
+ VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R4 \ |
+ "add sp, sp, #20 \n\t" \ |
+ "mov %0, r0" \ |
+ : /*out*/ "=r" (_res) \ |
+ : /*in*/ "0" (&_argvec[0]) \ |
+ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ |
+ ); \ |
+ lval = (__typeof__(lval)) _res; \ |
+ } while (0) |
+ |
+#define CALL_FN_W_10W(lval, orig, arg1,arg2,arg3,arg4,arg5,arg6, \ |
+ arg7,arg8,arg9,arg10) \ |
+ do { \ |
+ volatile OrigFn _orig = (orig); \ |
+ volatile unsigned long _argvec[11]; \ |
+ volatile unsigned long _res; \ |
+ _argvec[0] = (unsigned long)_orig.nraddr; \ |
+ _argvec[1] = (unsigned long)(arg1); \ |
+ _argvec[2] = (unsigned long)(arg2); \ |
+ _argvec[3] = (unsigned long)(arg3); \ |
+ _argvec[4] = (unsigned long)(arg4); \ |
+ _argvec[5] = (unsigned long)(arg5); \ |
+ _argvec[6] = (unsigned long)(arg6); \ |
+ _argvec[7] = (unsigned long)(arg7); \ |
+ _argvec[8] = (unsigned long)(arg8); \ |
+ _argvec[9] = (unsigned long)(arg9); \ |
+ _argvec[10] = (unsigned long)(arg10); \ |
+ __asm__ volatile( \ |
+ "ldr r0, [%1, #40] \n\t" \ |
+ "push {r0} \n\t" \ |
+ "ldr r0, [%1, #20] \n\t" \ |
+ "ldr r1, [%1, #24] \n\t" \ |
+ "ldr r2, [%1, #28] \n\t" \ |
+ "ldr r3, [%1, #32] \n\t" \ |
+ "ldr r4, [%1, #36] \n\t" \ |
+ "push {r0, r1, r2, r3, r4} \n\t" \ |
+ "ldr r0, [%1, #4] \n\t" \ |
+ "ldr r1, [%1, #8] \n\t" \ |
+ "ldr r2, [%1, #12] \n\t" \ |
+ "ldr r3, [%1, #16] \n\t" \ |
+ "ldr r4, [%1] \n\t" /* target->r4 */ \ |
+ VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R4 \ |
+ "add sp, sp, #24 \n\t" \ |
+ "mov %0, r0" \ |
+ : /*out*/ "=r" (_res) \ |
+ : /*in*/ "0" (&_argvec[0]) \ |
+ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ |
+ ); \ |
+ lval = (__typeof__(lval)) _res; \ |
+ } while (0) |
+ |
+#define CALL_FN_W_11W(lval, orig, arg1,arg2,arg3,arg4,arg5, \ |
+ arg6,arg7,arg8,arg9,arg10, \ |
+ arg11) \ |
+ do { \ |
+ volatile OrigFn _orig = (orig); \ |
+ volatile unsigned long _argvec[12]; \ |
+ volatile unsigned long _res; \ |
+ _argvec[0] = (unsigned long)_orig.nraddr; \ |
+ _argvec[1] = (unsigned long)(arg1); \ |
+ _argvec[2] = (unsigned long)(arg2); \ |
+ _argvec[3] = (unsigned long)(arg3); \ |
+ _argvec[4] = (unsigned long)(arg4); \ |
+ _argvec[5] = (unsigned long)(arg5); \ |
+ _argvec[6] = (unsigned long)(arg6); \ |
+ _argvec[7] = (unsigned long)(arg7); \ |
+ _argvec[8] = (unsigned long)(arg8); \ |
+ _argvec[9] = (unsigned long)(arg9); \ |
+ _argvec[10] = (unsigned long)(arg10); \ |
+ _argvec[11] = (unsigned long)(arg11); \ |
+ __asm__ volatile( \ |
+ "ldr r0, [%1, #40] \n\t" \ |
+ "ldr r1, [%1, #44] \n\t" \ |
+ "push {r0, r1} \n\t" \ |
+ "ldr r0, [%1, #20] \n\t" \ |
+ "ldr r1, [%1, #24] \n\t" \ |
+ "ldr r2, [%1, #28] \n\t" \ |
+ "ldr r3, [%1, #32] \n\t" \ |
+ "ldr r4, [%1, #36] \n\t" \ |
+ "push {r0, r1, r2, r3, r4} \n\t" \ |
+ "ldr r0, [%1, #4] \n\t" \ |
+ "ldr r1, [%1, #8] \n\t" \ |
+ "ldr r2, [%1, #12] \n\t" \ |
+ "ldr r3, [%1, #16] \n\t" \ |
+ "ldr r4, [%1] \n\t" /* target->r4 */ \ |
+ VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R4 \ |
+ "add sp, sp, #28 \n\t" \ |
+ "mov %0, r0" \ |
+ : /*out*/ "=r" (_res) \ |
+ : /*in*/ "0" (&_argvec[0]) \ |
+ : /*trash*/ "cc", "memory",__CALLER_SAVED_REGS \ |
+ ); \ |
+ lval = (__typeof__(lval)) _res; \ |
+ } while (0) |
+ |
+#define CALL_FN_W_12W(lval, orig, arg1,arg2,arg3,arg4,arg5, \ |
+ arg6,arg7,arg8,arg9,arg10, \ |
+ arg11,arg12) \ |
+ do { \ |
+ volatile OrigFn _orig = (orig); \ |
+ volatile unsigned long _argvec[13]; \ |
+ volatile unsigned long _res; \ |
+ _argvec[0] = (unsigned long)_orig.nraddr; \ |
+ _argvec[1] = (unsigned long)(arg1); \ |
+ _argvec[2] = (unsigned long)(arg2); \ |
+ _argvec[3] = (unsigned long)(arg3); \ |
+ _argvec[4] = (unsigned long)(arg4); \ |
+ _argvec[5] = (unsigned long)(arg5); \ |
+ _argvec[6] = (unsigned long)(arg6); \ |
+ _argvec[7] = (unsigned long)(arg7); \ |
+ _argvec[8] = (unsigned long)(arg8); \ |
+ _argvec[9] = (unsigned long)(arg9); \ |
+ _argvec[10] = (unsigned long)(arg10); \ |
+ _argvec[11] = (unsigned long)(arg11); \ |
+ _argvec[12] = (unsigned long)(arg12); \ |
+ __asm__ volatile( \ |
+ "ldr r0, [%1, #40] \n\t" \ |
+ "ldr r1, [%1, #44] \n\t" \ |
+ "ldr r2, [%1, #48] \n\t" \ |
+ "push {r0, r1, r2} \n\t" \ |
+ "ldr r0, [%1, #20] \n\t" \ |
+ "ldr r1, [%1, #24] \n\t" \ |
+ "ldr r2, [%1, #28] \n\t" \ |
+ "ldr r3, [%1, #32] \n\t" \ |
+ "ldr r4, [%1, #36] \n\t" \ |
+ "push {r0, r1, r2, r3, r4} \n\t" \ |
+ "ldr r0, [%1, #4] \n\t" \ |
+ "ldr r1, [%1, #8] \n\t" \ |
+ "ldr r2, [%1, #12] \n\t" \ |
+ "ldr r3, [%1, #16] \n\t" \ |
+ "ldr r4, [%1] \n\t" /* target->r4 */ \ |
+ VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R4 \ |
+ "add sp, sp, #32 \n\t" \ |
+ "mov %0, r0" \ |
+ : /*out*/ "=r" (_res) \ |
+ : /*in*/ "0" (&_argvec[0]) \ |
+ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ |
+ ); \ |
+ lval = (__typeof__(lval)) _res; \ |
+ } while (0) |
+ |
+#endif /* PLAT_arm_linux */ |
+ |
/* ------------------------ ppc32-aix5 ------------------------- */ |
#if defined(PLAT_ppc32_aix5) |
@@ -3619,30 +4307,95 @@ |
VG_USERREQ__MEMPOOL_EXISTS = 0x130a, |
/* Allow printfs to valgrind log. */ |
+ /* The first two pass the va_list argument by value, which |
+ assumes it is the same size as or smaller than a UWord, |
+ which generally isn't the case. Hence are deprecated. |
+ The second two pass the vargs by reference and so are |
+ immune to this problem. */ |
+ /* both :: char* fmt, va_list vargs (DEPRECATED) */ |
VG_USERREQ__PRINTF = 0x1401, |
VG_USERREQ__PRINTF_BACKTRACE = 0x1402, |
+ /* both :: char* fmt, va_list* vargs */ |
+ VG_USERREQ__PRINTF_VALIST_BY_REF = 0x1403, |
+ VG_USERREQ__PRINTF_BACKTRACE_VALIST_BY_REF = 0x1404, |
/* Stack support. */ |
VG_USERREQ__STACK_REGISTER = 0x1501, |
VG_USERREQ__STACK_DEREGISTER = 0x1502, |
- VG_USERREQ__STACK_CHANGE = 0x1503 |
+ VG_USERREQ__STACK_CHANGE = 0x1503, |
+ |
+ /* Wine support */ |
+ VG_USERREQ__LOAD_PDB_DEBUGINFO = 0x1601, |
+ |
+ /* Querying of debug info. */ |
+ VG_USERREQ__MAP_IP_TO_SRCLOC = 0x1701 |
} Vg_ClientRequest; |
#if !defined(__GNUC__) |
# define __extension__ /* */ |
#endif |
+ |
+/* |
+ * VALGRIND_DO_CLIENT_REQUEST_EXPR(): a C expression that invokes a Valgrind |
+ * client request and whose value equals the client request result. |
+ */ |
+ |
+#if defined(NVALGRIND) |
+ |
+#define VALGRIND_DO_CLIENT_REQUEST_EXPR( \ |
+ _zzq_default, _zzq_request, \ |
+ _zzq_arg1, _zzq_arg2, _zzq_arg3, _zzq_arg4, _zzq_arg5) \ |
+ (_zzq_default) |
+ |
+#else /*defined(NVALGRIND)*/ |
+ |
+#if defined(_MSC_VER) |
+ |
+#define VALGRIND_DO_CLIENT_REQUEST_EXPR( \ |
+ _zzq_default, _zzq_request, \ |
+ _zzq_arg1, _zzq_arg2, _zzq_arg3, _zzq_arg4, _zzq_arg5) \ |
+ (vg_VALGRIND_DO_CLIENT_REQUEST_EXPR((uintptr_t)(_zzq_default), \ |
+ (_zzq_request), (uintptr_t)(_zzq_arg1), (uintptr_t)(_zzq_arg2), \ |
+ (uintptr_t)(_zzq_arg3), (uintptr_t)(_zzq_arg4), \ |
+ (uintptr_t)(_zzq_arg5))) |
+ |
+static __inline unsigned |
+vg_VALGRIND_DO_CLIENT_REQUEST_EXPR(uintptr_t _zzq_default, |
+ unsigned _zzq_request, uintptr_t _zzq_arg1, |
+ uintptr_t _zzq_arg2, uintptr_t _zzq_arg3, |
+ uintptr_t _zzq_arg4, uintptr_t _zzq_arg5) |
+{ |
+ unsigned _zzq_rlval; |
+ VALGRIND_DO_CLIENT_REQUEST(_zzq_rlval, _zzq_default, _zzq_request, |
+ _zzq_arg1, _zzq_arg2, _zzq_arg3, _zzq_arg4, _zzq_arg5); |
+ return _zzq_rlval; |
+} |
+ |
+#else /*defined(_MSC_VER)*/ |
+ |
+#define VALGRIND_DO_CLIENT_REQUEST_EXPR( \ |
+ _zzq_default, _zzq_request, \ |
+ _zzq_arg1, _zzq_arg2, _zzq_arg3, _zzq_arg4, _zzq_arg5) \ |
+ (__extension__({unsigned int _zzq_rlval; \ |
+ VALGRIND_DO_CLIENT_REQUEST(_zzq_rlval, _zzq_default, _zzq_request, \ |
+ _zzq_arg1, _zzq_arg2, _zzq_arg3, _zzq_arg4, _zzq_arg5) \ |
+ _zzq_rlval; \ |
+ })) |
+ |
+#endif /*defined(_MSC_VER)*/ |
+ |
+#endif /*defined(NVALGRIND)*/ |
+ |
+ |
/* Returns the number of Valgrinds this code is running under. That |
is, 0 if running natively, 1 if running under Valgrind, 2 if |
running under Valgrind which is running under another Valgrind, |
etc. */ |
-#define RUNNING_ON_VALGRIND __extension__ \ |
- ({unsigned int _qzz_res; \ |
- VALGRIND_DO_CLIENT_REQUEST(_qzz_res, 0 /* if not */, \ |
- VG_USERREQ__RUNNING_ON_VALGRIND, \ |
- 0, 0, 0, 0, 0); \ |
- _qzz_res; \ |
- }) |
+#define RUNNING_ON_VALGRIND \ |
+ VALGRIND_DO_CLIENT_REQUEST_EXPR(0 /* if not */, \ |
+ VG_USERREQ__RUNNING_ON_VALGRIND, \ |
+ 0, 0, 0, 0, 0) \ |
/* Discard translation of code in the range [_qzz_addr .. _qzz_addr + |
@@ -3658,7 +4411,9 @@ |
/* These requests are for getting Valgrind itself to print something. |
- Possibly with a backtrace. This is a really ugly hack. */ |
+ Possibly with a backtrace. This is a really ugly hack. The return value |
+ is the number of characters printed, excluding the "**<pid>** " part at the |
+ start and the backtrace (if present). */ |
#if defined(NVALGRIND) |
@@ -3667,34 +4422,64 @@ |
#else /* NVALGRIND */ |
+#if !defined(_MSC_VER) |
/* Modern GCC will optimize the static routine out if unused, |
and unused attribute will shut down warnings about it. */ |
static int VALGRIND_PRINTF(const char *format, ...) |
__attribute__((format(__printf__, 1, 2), __unused__)); |
+#endif |
static int |
+#if defined(_MSC_VER) |
+__inline |
+#endif |
VALGRIND_PRINTF(const char *format, ...) |
{ |
unsigned long _qzz_res; |
va_list vargs; |
va_start(vargs, format); |
- VALGRIND_DO_CLIENT_REQUEST(_qzz_res, 0, VG_USERREQ__PRINTF, |
- (unsigned long)format, (unsigned long)vargs, |
+#if defined(_MSC_VER) |
+ VALGRIND_DO_CLIENT_REQUEST(_qzz_res, 0, |
+ VG_USERREQ__PRINTF_VALIST_BY_REF, |
+ (uintptr_t)format, |
+ (uintptr_t)&vargs, |
0, 0, 0); |
+#else |
+ VALGRIND_DO_CLIENT_REQUEST(_qzz_res, 0, |
+ VG_USERREQ__PRINTF_VALIST_BY_REF, |
+ (unsigned long)format, |
+ (unsigned long)&vargs, |
+ 0, 0, 0); |
+#endif |
va_end(vargs); |
return (int)_qzz_res; |
} |
+#if !defined(_MSC_VER) |
static int VALGRIND_PRINTF_BACKTRACE(const char *format, ...) |
__attribute__((format(__printf__, 1, 2), __unused__)); |
+#endif |
static int |
+#if defined(_MSC_VER) |
+__inline |
+#endif |
VALGRIND_PRINTF_BACKTRACE(const char *format, ...) |
{ |
unsigned long _qzz_res; |
va_list vargs; |
va_start(vargs, format); |
- VALGRIND_DO_CLIENT_REQUEST(_qzz_res, 0, VG_USERREQ__PRINTF_BACKTRACE, |
- (unsigned long)format, (unsigned long)vargs, |
+#if defined(_MSC_VER) |
+ VALGRIND_DO_CLIENT_REQUEST(_qzz_res, 0, |
+ VG_USERREQ__PRINTF_BACKTRACE_VALIST_BY_REF, |
+ (uintptr_t)format, |
+ (uintptr_t)&vargs, |
0, 0, 0); |
+#else |
+ VALGRIND_DO_CLIENT_REQUEST(_qzz_res, 0, |
+ VG_USERREQ__PRINTF_BACKTRACE_VALIST_BY_REF, |
+ (unsigned long)format, |
+ (unsigned long)&vargs, |
+ 0, 0, 0); |
+#endif |
va_end(vargs); |
return (int)_qzz_res; |
} |
@@ -3779,31 +4564,93 @@ |
_qyy_res; \ |
}) |
-/* Mark a block of memory as having been allocated by a malloc()-like |
- function. `addr' is the start of the usable block (ie. after any |
- redzone) `rzB' is redzone size if the allocator can apply redzones; |
- use '0' if not. Adding redzones makes it more likely Valgrind will spot |
- block overruns. `is_zeroed' indicates if the memory is zeroed, as it is |
- for calloc(). Put it immediately after the point where a block is |
- allocated. |
+/* Several Valgrind tools (Memcheck, Massif, Helgrind, DRD) rely on knowing |
+ when heap blocks are allocated in order to give accurate results. This |
+ happens automatically for the standard allocator functions such as |
+ malloc(), calloc(), realloc(), memalign(), new, new[], free(), delete, |
+ delete[], etc. |
+ |
+ But if your program uses a custom allocator, this doesn't automatically |
+ happen, and Valgrind will not do as well. For example, if you allocate |
+ superblocks with mmap() and then allocates chunks of the superblocks, all |
+ Valgrind's observations will be at the mmap() level and it won't know that |
+ the chunks should be considered separate entities. In Memcheck's case, |
+ that means you probably won't get heap block overrun detection (because |
+ there won't be redzones marked as unaddressable) and you definitely won't |
+ get any leak detection. |
+ |
+ The following client requests allow a custom allocator to be annotated so |
+ that it can be handled accurately by Valgrind. |
+ |
+ VALGRIND_MALLOCLIKE_BLOCK marks a region of memory as having been allocated |
+ by a malloc()-like function. For Memcheck (an illustrative case), this |
+ does two things: |
+ |
+ - It records that the block has been allocated. This means any addresses |
+ within the block mentioned in error messages will be |
+ identified as belonging to the block. It also means that if the block |
+ isn't freed it will be detected by the leak checker. |
+ |
+ - It marks the block as being addressable and undefined (if 'is_zeroed' is |
+ not set), or addressable and defined (if 'is_zeroed' is set). This |
+ controls how accesses to the block by the program are handled. |
- If you're using Memcheck: If you're allocating memory via superblocks, |
- and then handing out small chunks of each superblock, if you don't have |
- redzones on your small blocks, it's worth marking the superblock with |
- VALGRIND_MAKE_MEM_NOACCESS when it's created, so that block overruns are |
- detected. But if you can put redzones on, it's probably better to not do |
- this, so that messages for small overruns are described in terms of the |
- small block rather than the superblock (but if you have a big overrun |
- that skips over a redzone, you could miss an error this way). See |
- memcheck/tests/custom_alloc.c for an example. |
+ 'addr' is the start of the usable block (ie. after any |
+ redzone), 'sizeB' is its size. 'rzB' is the redzone size if the allocator |
+ can apply redzones -- these are blocks of padding at the start and end of |
+ each block. Adding redzones is recommended as it makes it much more likely |
+ Valgrind will spot block overruns. `is_zeroed' indicates if the memory is |
+ zeroed (or filled with another predictable value), as is the case for |
+ calloc(). |
+ |
+ VALGRIND_MALLOCLIKE_BLOCK should be put immediately after the point where a |
+ heap block -- that will be used by the client program -- is allocated. |
+ It's best to put it at the outermost level of the allocator if possible; |
+ for example, if you have a function my_alloc() which calls |
+ internal_alloc(), and the client request is put inside internal_alloc(), |
+ stack traces relating to the heap block will contain entries for both |
+ my_alloc() and internal_alloc(), which is probably not what you want. |
- WARNING: if your allocator uses malloc() or 'new' to allocate |
- superblocks, rather than mmap() or brk(), this will not work properly -- |
- you'll likely get assertion failures during leak detection. This is |
- because Valgrind doesn't like seeing overlapping heap blocks. Sorry. |
+ For Memcheck users: if you use VALGRIND_MALLOCLIKE_BLOCK to carve out |
+ custom blocks from within a heap block, B, that has been allocated with |
+ malloc/calloc/new/etc, then block B will be *ignored* during leak-checking |
+ -- the custom blocks will take precedence. |
- Nb: block must be freed via a free()-like function specified |
- with VALGRIND_FREELIKE_BLOCK or mismatch errors will occur. */ |
+ VALGRIND_FREELIKE_BLOCK is the partner to VALGRIND_MALLOCLIKE_BLOCK. For |
+ Memcheck, it does two things: |
+ |
+ - It records that the block has been deallocated. This assumes that the |
+ block was annotated as having been allocated via |
+ VALGRIND_MALLOCLIKE_BLOCK. Otherwise, an error will be issued. |
+ |
+ - It marks the block as being unaddressable. |
+ |
+ VALGRIND_FREELIKE_BLOCK should be put immediately after the point where a |
+ heap block is deallocated. |
+ |
+ In many cases, these two client requests will not be enough to get your |
+ allocator working well with Memcheck. More specifically, if your allocator |
+ writes to freed blocks in any way then a VALGRIND_MAKE_MEM_UNDEFINED call |
+ will be necessary to mark the memory as addressable just before the zeroing |
+ occurs, otherwise you'll get a lot of invalid write errors. For example, |
+ you'll need to do this if your allocator recycles freed blocks, but it |
+ zeroes them before handing them back out (via VALGRIND_MALLOCLIKE_BLOCK). |
+ Alternatively, if your allocator reuses freed blocks for allocator-internal |
+ data structures, VALGRIND_MAKE_MEM_UNDEFINED calls will also be necessary. |
+ |
+ Really, what's happening is a blurring of the lines between the client |
+ program and the allocator... after VALGRIND_FREELIKE_BLOCK is called, the |
+ memory should be considered unaddressable to the client program, but the |
+ allocator knows more than the rest of the client program and so may be able |
+ to safely access it. Extra client requests are necessary for Valgrind to |
+ understand the distinction between the allocator and the rest of the |
+ program. |
+ |
+ Note: there is currently no VALGRIND_REALLOCLIKE_BLOCK client request; it |
+ has to be emulated with MALLOCLIKE/FREELIKE and memory copying. |
+ |
+ Ignored if addr == 0. |
+*/ |
#define VALGRIND_MALLOCLIKE_BLOCK(addr, sizeB, rzB, is_zeroed) \ |
{unsigned int _qzz_res; \ |
VALGRIND_DO_CLIENT_REQUEST(_qzz_res, 0, \ |
@@ -3811,10 +4658,9 @@ |
addr, sizeB, rzB, is_zeroed, 0); \ |
} |
-/* Mark a block of memory as having been freed by a free()-like function. |
- `rzB' is redzone size; it must match that given to |
- VALGRIND_MALLOCLIKE_BLOCK. Memory not freed will be detected by the leak |
- checker. Put it immediately after the point where the block is freed. */ |
+/* See the comment for VALGRIND_MALLOCLIKE_BLOCK for details. |
+ Ignored if addr == 0. |
+*/ |
#define VALGRIND_FREELIKE_BLOCK(addr, rzB) \ |
{unsigned int _qzz_res; \ |
VALGRIND_DO_CLIENT_REQUEST(_qzz_res, 0, \ |
@@ -3880,6 +4726,7 @@ |
/* Return 1 if a mempool exists, else 0. */ |
#define VALGRIND_MEMPOOL_EXISTS(pool) \ |
+ __extension__ \ |
({unsigned int _qzz_res; \ |
VALGRIND_DO_CLIENT_REQUEST(_qzz_res, 0, \ |
VG_USERREQ__MEMPOOL_EXISTS, \ |
@@ -3889,6 +4736,7 @@ |
/* Mark a piece of memory as being a stack. Returns a stack id. */ |
#define VALGRIND_STACK_REGISTER(start, end) \ |
+ __extension__ \ |
({unsigned int _qzz_res; \ |
VALGRIND_DO_CLIENT_REQUEST(_qzz_res, 0, \ |
VG_USERREQ__STACK_REGISTER, \ |
@@ -3913,11 +4761,31 @@ |
id, start, end, 0, 0); \ |
} |
+/* Load PDB debug info for Wine PE image_map. */ |
+#define VALGRIND_LOAD_PDB_DEBUGINFO(fd, ptr, total_size, delta) \ |
+ {unsigned int _qzz_res; \ |
+ VALGRIND_DO_CLIENT_REQUEST(_qzz_res, 0, \ |
+ VG_USERREQ__LOAD_PDB_DEBUGINFO, \ |
+ fd, ptr, total_size, delta, 0); \ |
+ } |
+/* Map a code address to a source file name and line number. buf64 |
+ must point to a 64-byte buffer in the caller's address space. The |
+ result will be dumped in there and is guaranteed to be zero |
+ terminated. If no info is found, the first byte is set to zero. */ |
+#define VALGRIND_MAP_IP_TO_SRCLOC(addr, buf64) \ |
+ {unsigned int _qzz_res; \ |
+ VALGRIND_DO_CLIENT_REQUEST(_qzz_res, 0, \ |
+ VG_USERREQ__MAP_IP_TO_SRCLOC, \ |
+ addr, buf64, 0, 0, 0); \ |
+ } |
+ |
+ |
#undef PLAT_x86_linux |
#undef PLAT_amd64_linux |
#undef PLAT_ppc32_linux |
#undef PLAT_ppc64_linux |
+#undef PLAT_arm_linux |
#undef PLAT_ppc32_aix5 |
#undef PLAT_ppc64_aix5 |