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dnl Copyright (C) 2009 Sun Microsystems, Inc.
dnl This file is free software; Sun Microsystems, Inc.
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.
dnl Try to define a macro to dump the current callstack.
AC_DEFUN([PANDORA_PRINT_CALLSTACK],[
AC_CHECK_HEADERS([ucontext.h])
AS_IF([test "x$ac_cv_header_ucontext_h" = "xyes"],
[ AC_CHECK_FUNCS([printstack]) ])
AS_IF([ test "x$ac_cv_func_printstack" != "xyes"],
[ AC_CHECK_HEADERS([dlfcn.h])
AC_CHECK_HEADERS([execinfo.h])
AC_CHECK_FUNCS([backtrace])
AC_CHECK_FUNCS([backtrace_symbols_fd]) ])
AH_BOTTOM([
#ifdef __cplusplus
#include <cstdio>
#define PANDORA_PRINTSTACK_STD_PREFIX std::
#else
#include <stdio.h>
#define PANDORA_PRINTSTACK_STD_PREFIX
#endif
#if defined(HAVE_UCONTEXT_H) && defined(HAVE_PRINTSTACK)
#include <ucontext.h>
#define pandora_print_callstack(a) \
printstack(PANDORA_PRINTSTACK_STD_PREFIX fileno(a))
#elif defined(HAVE_EXECINFO_H) && defined(HAVE_BACKTRACE) && defined(HAVE_BACKTRACE_SYMBOLS_FD)
#include <execinfo.h>
#define pandora_print_callstack(a) \
{ \
void *stack[100]; \
int depth = backtrace(stack, 100); \
backtrace_symbols_fd(stack, depth, PANDORA_PRINTSTACK_STD_PREFIX fileno(a)); \
}
#elif defined(HAVE_EXECINFO_H) && defined(HAVE_BACKTRACE) && defined(HAVE_BACKTRACE_SYMBOLS) && !defined(HAVE_BACKTRACE_SYMBOLS_FD)
#include <execinfo.h>
#define pandora_print_callstack(a) \
{ \
void *stack[100]; \
int depth= backtrace(stack, 100); \
char **symbol= backtrace_symbols(stack, depth); \
for (int x= 0; x < size; ++x) \
PANDORA_PRINTSTACK_STD_PREFIX fprintf(a, "%s\n", symbol[x]); \
}
#else
#define pandora_print_callstack(a) \
PANDORA_PRINTSTACK_STD_PREFIX fprintf(a, \
"Stackdump not supported for this platform\n");
#endif
])
])
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