141 lines
3.2 KiB
C
141 lines
3.2 KiB
C
/*
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* ***** BEGIN GPL LICENSE BLOCK *****
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*
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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
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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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 Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* ***** END GPL LICENSE BLOCK *****
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*/
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/** \file blender/blenlib/intern/system.c
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* \ingroup bli
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include "BLI_utildefines.h"
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#include "BLI_system.h"
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#include "MEM_guardedalloc.h"
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/* for backtrace */
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#if defined(__linux__) || defined(__APPLE__)
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# include <execinfo.h>
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#elif defined(WIN32)
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# include <windows.h>
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# include <dbghelp.h>
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#endif
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int BLI_cpu_support_sse2(void)
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{
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#if defined(__x86_64__) || defined(_M_X64)
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/* x86_64 always has SSE2 instructions */
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return 1;
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#elif defined(__GNUC__) && defined(i386)
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/* for GCC x86 we check cpuid */
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unsigned int d;
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__asm__(
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"pushl %%ebx\n\t"
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"cpuid\n\t"
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"popl %%ebx\n\t"
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: "=d" (d)
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: "a" (1));
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return (d & 0x04000000) != 0;
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#elif (defined(_MSC_VER) && defined(_M_IX86))
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/* also check cpuid for MSVC x86 */
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unsigned int d;
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__asm {
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xor eax, eax
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inc eax
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push ebx
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cpuid
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pop ebx
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mov d, edx
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}
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return (d & 0x04000000) != 0;
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#else
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return 0;
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#endif
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}
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/**
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* Write a backtrace into a file for systems which support it.
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*/
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void BLI_system_backtrace(FILE *fp)
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{
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/* ------------- */
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/* Linux / Apple */
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#if defined(__linux__) || defined(__APPLE__)
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#define SIZE 100
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void *buffer[SIZE];
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int nptrs;
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char **strings;
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int i;
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/* include a backtrace for good measure */
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nptrs = backtrace(buffer, SIZE);
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strings = backtrace_symbols(buffer, nptrs);
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for (i = 0; i < nptrs; i++) {
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fputs(strings[i], fp);
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fputc('\n', fp);
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}
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free(strings);
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#undef SIZE
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/* -------- */
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/* Windows */
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#elif defined(_MSC_VER)
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#ifndef NDEBUG
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#define MAXSYMBOL 256
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#define SIZE 100
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unsigned short i;
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void *stack[SIZE];
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unsigned short nframes;
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SYMBOL_INFO *symbolinfo;
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HANDLE process;
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process = GetCurrentProcess();
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SymInitialize(process, NULL, TRUE);
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nframes = CaptureStackBackTrace(0, SIZE, stack, NULL);
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symbolinfo = MEM_callocN(sizeof(SYMBOL_INFO) + MAXSYMBOL * sizeof(char), "crash Symbol table");
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symbolinfo->MaxNameLen = MAXSYMBOL - 1;
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symbolinfo->SizeOfStruct = sizeof(SYMBOL_INFO);
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for (i = 0; i < nframes; i++) {
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SymFromAddr(process, (DWORD64)(stack[i]), 0, symbolinfo);
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fprintf(fp, "%u: %s - 0x%0X\n", nframes - i - 1, symbolinfo->Name, symbolinfo->Address);
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}
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MEM_freeN(symbolinfo);
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#undef MAXSYMBOL
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#undef SIZE
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#else
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fprintf(fp, "Crash backtrace not supported on release builds\n");
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#endif /* NDEBUG */
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#else /* _MSC_VER */
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/* ------------------ */
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/* non msvc/osx/linux */
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(void)fp;
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#endif
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}
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/* end BLI_system_backtrace */
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