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Add backtrace function. May only work on Linux but still very useful.

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This commit is contained in:
Eric House 2011-11-28 18:12:56 -08:00
parent 384a41ed5b
commit 1b864b5527
3 changed files with 22 additions and 1 deletions
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2
xwords4/linux/Makefile
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@ -20,7 +20,7 @@ ifeq ($(MEMDEBUG),TRUE)
DEFINES = -DMEM_DEBUG -DDEBUG -DENABLE_LOGGING -DNUMBER_KEY_AS_INDEX
DEFINES += -DCOMMS_CHECKSUM
CFLAGS += -g $(GPROFFLAG) -Wall -Wunused-parameter -Wcast-align -Werror -O0
CFLAGS += -DDEBUG_TS
CFLAGS += -DDEBUG_TS -rdynamic
PLATFORM = obj_linux_memdbg
else
DEFINES =

18
xwords4/linux/linuxutl.c
View file

@ -25,6 +25,9 @@
#include <string.h>
#include <stdbool.h>
#include <ctype.h> /* BAD: use glib to support utf8 */
#ifdef DEBUG
# include <execinfo.h> /* for backtrace */
#endif
#include "linuxutl.h"
#include "main.h"
@ -54,6 +57,21 @@ linux_debugf( const char* format, ... )
fprintf( stderr, "%s\n", buf );
}
void
linux_backtrace( void )
{
void* buffer[128];
int nFound = backtrace( buffer, VSIZE(buffer) );
XP_ASSERT( nFound < VSIZE(buffer) );
char** traces = backtrace_symbols( buffer, nFound );
XP_U16 ii;
for ( ii = 0; ii < nFound; ++ii ) {
XP_LOGF( "trace[%.2d]: %s", ii, traces[ii] );
}
free( traces );
}
#endif
#ifndef MEM_DEBUG

3
xwords4/linux/xptypes.h
View file

@ -115,8 +115,11 @@ void linux_lowerstr( XP_UCHAR* str );
#ifdef DEBUG
# define XP_ASSERT(b) assert(b)
void linux_backtrace( void );
# define XP_BACKTRACE linux_backtrace
#else
# define XP_ASSERT(b)
# define XP_BACKTRACE
#endif
#define DGRAM_TYPE SOCK_DGRAM