mirror of https://gitlab.freedesktop.org/mesa/mesa
280 lines
7.8 KiB
C
280 lines
7.8 KiB
C
/**************************************************************************
|
|
*
|
|
* Copyright 2009 VMware, Inc.
|
|
* All Rights Reserved.
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a
|
|
* copy of this software and associated documentation files (the
|
|
* "Software"), to deal in the Software without restriction, including
|
|
* without limitation the rights to use, copy, modify, merge, publish,
|
|
* distribute, sub license, and/or sell copies of the Software, and to
|
|
* permit persons to whom the Software is furnished to do so, subject to
|
|
* the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice (including the
|
|
* next paragraph) shall be included in all copies or substantial portions
|
|
* of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
|
|
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
|
|
* IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
|
|
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
|
|
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
|
|
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
|
*
|
|
**************************************************************************/
|
|
|
|
/**
|
|
* @file
|
|
* Symbol lookup.
|
|
*
|
|
* @author Jose Fonseca <jfonseca@vmware.com>
|
|
*/
|
|
|
|
#include "util/compiler.h"
|
|
#include "util/u_thread.h"
|
|
#include "util/simple_mtx.h"
|
|
#include "util/u_string.h"
|
|
|
|
#include "util/u_debug.h"
|
|
#include "u_debug_symbol.h"
|
|
#include "util/hash_table.h"
|
|
|
|
|
|
#if DETECT_OS_WINDOWS
|
|
|
|
#include <windows.h>
|
|
#include <stddef.h>
|
|
|
|
#include "dbghelp.h"
|
|
|
|
|
|
/**
|
|
* SymInitialize() must be called once for each process (in this case, the
|
|
* current process), before any of the other functions can be called.
|
|
*/
|
|
static BOOL g_bSymInitialized = false;
|
|
|
|
|
|
/**
|
|
* Lookup the address of a DbgHelp function.
|
|
*/
|
|
static FARPROC WINAPI
|
|
getDbgHelpProcAddress(LPCSTR lpProcName)
|
|
{
|
|
static HMODULE hModule = NULL;
|
|
|
|
if (!hModule) {
|
|
static bool bail = false;
|
|
|
|
if (bail) {
|
|
return NULL;
|
|
}
|
|
|
|
#if DETECT_CC_GCC
|
|
/*
|
|
* DbgHelp does not understand the debug information generated by MinGW toolchain.
|
|
*
|
|
* mgwhelp.dll is a dbghelp.dll look-alike replacement, which is able to
|
|
* understand MinGW symbols, including on 64-bit builds.
|
|
*/
|
|
if (!hModule) {
|
|
hModule = LoadLibraryA("mgwhelp.dll");
|
|
if (!hModule) {
|
|
_debug_printf("warning: mgwhelp.dll not found: symbol names will not be resolved\n"
|
|
"warning: download it from https://github.com/jrfonseca/drmingw/#mgwhelp\n");
|
|
}
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* Fallback to the real DbgHelp.
|
|
*/
|
|
if (!hModule) {
|
|
hModule = LoadLibraryA("dbghelp.dll");
|
|
}
|
|
|
|
if (!hModule) {
|
|
bail = true;
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
return GetProcAddress(hModule, lpProcName);
|
|
}
|
|
|
|
|
|
/**
|
|
* Generic macro to dispatch a DbgHelp functions.
|
|
*/
|
|
#define DBGHELP_DISPATCH(_name, _ret_type, _ret_default, _arg_types, _arg_names) \
|
|
static _ret_type WINAPI \
|
|
j_##_name _arg_types \
|
|
{ \
|
|
typedef BOOL (WINAPI *PFN) _arg_types; \
|
|
static PFN pfn = NULL; \
|
|
if (!pfn) { \
|
|
pfn = (PFN) getDbgHelpProcAddress(#_name); \
|
|
if (!pfn) { \
|
|
return _ret_default; \
|
|
} \
|
|
} \
|
|
return pfn _arg_names; \
|
|
}
|
|
|
|
DBGHELP_DISPATCH(SymInitialize,
|
|
BOOL, 0,
|
|
(HANDLE hProcess, PSTR UserSearchPath, BOOL fInvadeProcess),
|
|
(hProcess, UserSearchPath, fInvadeProcess))
|
|
|
|
DBGHELP_DISPATCH(SymSetOptions,
|
|
DWORD, false,
|
|
(DWORD SymOptions),
|
|
(SymOptions))
|
|
|
|
#ifndef _GAMING_XBOX
|
|
DBGHELP_DISPATCH(SymFromAddr,
|
|
BOOL, false,
|
|
(HANDLE hProcess, DWORD64 Address, PDWORD64 Displacement, PSYMBOL_INFO Symbol),
|
|
(hProcess, Address, Displacement, Symbol))
|
|
#endif
|
|
|
|
DBGHELP_DISPATCH(SymGetLineFromAddr64,
|
|
BOOL, false,
|
|
(HANDLE hProcess, DWORD64 dwAddr, PDWORD pdwDisplacement, PIMAGEHLP_LINE64 Line),
|
|
(hProcess, dwAddr, pdwDisplacement, Line))
|
|
|
|
DBGHELP_DISPATCH(SymCleanup, BOOL, false, (HANDLE hProcess), (hProcess))
|
|
|
|
|
|
#undef DBGHELP_DISPATCH
|
|
|
|
|
|
static inline bool
|
|
debug_symbol_name_dbghelp(const void *addr, char* buf, unsigned size)
|
|
{
|
|
#ifndef _GAMING_XBOX
|
|
DWORD64 dwAddr = (DWORD64)(uintptr_t)addr;
|
|
HANDLE hProcess = GetCurrentProcess();
|
|
|
|
/* General purpose buffer, to back pSymbol and other temporary stuff.
|
|
* Must not be too memory hungry here to avoid stack overflows.
|
|
*/
|
|
CHAR buffer[512];
|
|
|
|
PSYMBOL_INFO pSymbol = (PSYMBOL_INFO) buffer;
|
|
DWORD64 dwDisplacement = 0; /* Displacement of the input address, relative to the start of the symbol */
|
|
DWORD dwLineDisplacement = 0;
|
|
IMAGEHLP_LINE64 Line;
|
|
|
|
memset(pSymbol, 0, sizeof *pSymbol);
|
|
pSymbol->SizeOfStruct = sizeof *pSymbol;
|
|
pSymbol->MaxNameLen = sizeof buffer - offsetof(SYMBOL_INFO, Name);
|
|
|
|
if (!g_bSymInitialized) {
|
|
/* Some components (e.g. Java) will init dbghelp before we're loaded, causing the "invade process"
|
|
* option to be invalid when attempting to re-init. But without it, we'd have to manually
|
|
* load symbols for all modules in the stack. For simplicity, we can just uninit and then
|
|
* re-"invade".
|
|
*/
|
|
if (debug_get_bool_option("GALLIUM_SYMBOL_FORCE_REINIT", false))
|
|
j_SymCleanup(hProcess);
|
|
|
|
j_SymSetOptions(/* SYMOPT_UNDNAME | */ SYMOPT_LOAD_LINES);
|
|
if (j_SymInitialize(hProcess, NULL, true)) {
|
|
g_bSymInitialized = true;
|
|
}
|
|
}
|
|
|
|
/* Lookup symbol name */
|
|
if (!g_bSymInitialized ||
|
|
!j_SymFromAddr(hProcess, dwAddr, &dwDisplacement, pSymbol)) {
|
|
/*
|
|
* We couldn't obtain symbol information. At least tell which module the address belongs.
|
|
*/
|
|
|
|
HMODULE hModule = NULL;
|
|
|
|
if (!GetModuleHandleEx(GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS,
|
|
(LPCTSTR)addr,
|
|
&hModule)) {
|
|
return false;
|
|
}
|
|
|
|
if (GetModuleFileNameA(hModule, buffer, sizeof buffer) == sizeof buffer) {
|
|
return false;
|
|
}
|
|
snprintf(buf, size, "%p at %s+0x%lx",
|
|
addr, buffer,
|
|
(unsigned long)((uintptr_t)addr - (uintptr_t)hModule));
|
|
|
|
return true;
|
|
}
|
|
|
|
/*
|
|
* Try to get filename and line number.
|
|
*/
|
|
memset(&Line, 0, sizeof Line);
|
|
Line.SizeOfStruct = sizeof Line;
|
|
if (!j_SymGetLineFromAddr64(hProcess, dwAddr, &dwLineDisplacement, &Line)) {
|
|
Line.FileName = NULL;
|
|
}
|
|
|
|
if (Line.FileName) {
|
|
snprintf(buf, size, "%s at %s:%lu", pSymbol->Name, Line.FileName, Line.LineNumber);
|
|
} else {
|
|
snprintf(buf, size, "%s", pSymbol->Name);
|
|
}
|
|
|
|
return true;
|
|
#else
|
|
return false;
|
|
#endif /* _GAMING_XBOX */
|
|
}
|
|
|
|
#endif /* DETECT_OS_WINDOWS */
|
|
|
|
void
|
|
debug_symbol_name(const void *addr, char* buf, unsigned size)
|
|
{
|
|
#if DETECT_OS_WINDOWS
|
|
if (debug_symbol_name_dbghelp(addr, buf, size)) {
|
|
return;
|
|
}
|
|
#endif
|
|
|
|
snprintf(buf, size, "%p", addr);
|
|
buf[size - 1] = 0;
|
|
}
|
|
|
|
void
|
|
debug_symbol_print(const void *addr)
|
|
{
|
|
char buf[1024];
|
|
debug_symbol_name(addr, buf, sizeof(buf));
|
|
debug_printf("\t%s\n", buf);
|
|
}
|
|
|
|
static struct hash_table* symbols_hash;
|
|
static simple_mtx_t symbols_mutex = SIMPLE_MTX_INITIALIZER;
|
|
|
|
const char*
|
|
debug_symbol_name_cached(const void *addr)
|
|
{
|
|
const char* name;
|
|
simple_mtx_lock(&symbols_mutex);
|
|
if(!symbols_hash)
|
|
symbols_hash = _mesa_pointer_hash_table_create(NULL);
|
|
struct hash_entry *entry = _mesa_hash_table_search(symbols_hash, addr);
|
|
if (!entry) {
|
|
char buf[1024];
|
|
debug_symbol_name(addr, buf, sizeof(buf));
|
|
name = strdup(buf);
|
|
|
|
entry = _mesa_hash_table_insert(symbols_hash, addr, (void*)name);
|
|
}
|
|
simple_mtx_unlock(&symbols_mutex);
|
|
return entry->data;
|
|
}
|