/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project .
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License , v . 2 . 0 . If a copy of the MPL was not distributed with this
* file , You can obtain one at http : //mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice :
*
* Licensed to the Apache Software Foundation ( ASF ) under one or more
* contributor license agreements . See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership . The ASF licenses this file to you under the Apache
* License , Version 2 . 0 ( the " License " ) ; you may not use this file
* except in compliance with the License . You may obtain a copy of
* the License at http : //www.apache.org/licenses/LICENSE-2.0 .
*/
// This file is #include from backtrace.c
#include <dlfcn.h>
#include <pthread.h>
#include <setjmp.h>
#include <stdio.h>
#include <sys/frame.h>
#if defined (SPARC)
#if defined IS_LP64
#define FRAME_PTR_OFFSET 1
#define FRAME_OFFSET 0
#define STACK_BIAS 0 x7ff
#else
#define FRAME_PTR_OFFSET 1
#define FRAME_OFFSET 0
#define STACK_BIAS 0
#endif
#elif defined ( INTEL )
#define FRAME_PTR_OFFSET 3
#define FRAME_OFFSET 0
#define STACK_BIAS 0
#else
#error Unknown Solaris target platform.
#endif /* defined SPARC or INTEL */
int backtrace( void **buffer, int max_frames )
{
jmp_buf ctx;
long fpval;
struct frame *fp;
int i;
/* flush register windows */
#ifdef SPARC
asm ("ta 3" );
#endif
/* get stack- and framepointer */
setjmp(ctx);
fpval = ((long *)(ctx))[FRAME_PTR_OFFSET];
fp = (struct frame*)((char *)(fpval) + STACK_BIAS);
for (i = 0 ; (i < FRAME_OFFSET) && (fp != 0 ); i++)
fp = (struct frame*)((char *)(fp->fr_savfp) + STACK_BIAS);
/* iterate through backtrace */
for (i = 0 ; (fp != 0 ) && (fp->fr_savpc != 0 ) && (i < max_frames); i++)
{
/* saved (prev) frame */
struct frame * prev = (struct frame*)((char *)(fp->fr_savfp) + STACK_BIAS);
/* store frame */
*(buffer++) = (void *)(fp->fr_savpc);
/* prev frame (w/ stack growing top down) */
fp = (prev > fp) ? prev : 0 ;
}
/* return number of frames stored */
return i;
}
char ** backtrace_symbols(void * const * buffer, int size)
{
(void )buffer; (void )size;
return NULL; /*TODO*/
}
void backtrace_symbols_fd( void **buffer, int size, int fd )
{
FILE *fp = fdopen( fd, "w" );
if ( fp )
{
void **pFramePtr;
for ( pFramePtr = buffer; size > 0 && pFramePtr && *pFramePtr; pFramePtr++, size-- )
{
Dl_info dli;
ptrdiff_t offset;
if ( 0 != dladdr( *pFramePtr, &dli ) )
{
if ( dli.dli_fname && dli.dli_fbase )
{
offset = (ptrdiff_t)*pFramePtr - (ptrdiff_t)dli.dli_fbase;
fprintf( fp, "%s+0x%" SAL_PRI_PTRDIFFT "x" , dli.dli_fname, offset );
}
if ( dli.dli_sname && dli.dli_saddr )
{
offset = (ptrdiff_t)*pFramePtr - (ptrdiff_t)dli.dli_saddr;
fprintf( fp, "(%s+0x%" SAL_PRI_PTRDIFFT "x)" , dli.dli_sname, offset );
}
}
fprintf( fp, "[%p]\n" , *pFramePtr );
}
fclose( fp );
}
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
Messung V0.5 in Prozent C=84 H=89 G=86
¤ Dauer der Verarbeitung: 0.10 Sekunden
(vorverarbeitet am 2026-09-28)
¤
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