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libbacktrace: Add hpux fileline support

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Fixes libstdc++ stacktrace tests.

2025-04-10  John David Anglin  <danglin@gcc.gnu.org>

libbacktrace/ChangeLog:
	* fileline.c (hpux_get_executable_path): New.
	(fileline_initialize): Add pass to get hpux executable path.
This commit is contained in:
John David Anglin 2025-04-10 10:00:13 -04:00
parent a5a7233dfc
commit 911973a784
1 changed files with 35 additions and 1 deletions
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36
libbacktrace/fileline.c
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@ -47,6 +47,10 @@ POSSIBILITY OF SUCH DAMAGE. */
#include <mach-o/dyld.h>
#endif
#ifdef __hpux__
#include <dl.h>
#endif
#ifdef HAVE_WINDOWS_H
#ifndef WIN32_LEAN_AND_MEAN
#define WIN32_LEAN_AND_MEAN
@ -66,6 +70,33 @@ POSSIBILITY OF SUCH DAMAGE. */
#define getexecname() NULL
#endif
#ifdef __hpux__
static char *
hpux_get_executable_path (struct backtrace_state *state,
backtrace_error_callback error_callback, void *data)
{
struct shl_descriptor *desc;
size_t len = sizeof (struct shl_descriptor);
desc = backtrace_alloc (state, len, error_callback, data);
if (desc == NULL)
return NULL;
if (shl_get_r (0, desc) == -1)
{
backtrace_free (state, desc, len, error_callback, data);
return NULL;
}
return desc->filename;
}
#else
#define hpux_get_executable_path(state, error_callback, data) NULL
#endif
#if !defined (HAVE_KERN_PROC_ARGS) && !defined (HAVE_KERN_PROC)
#define sysctl_exec_name1(state, error_callback, data) NULL
@ -245,7 +276,7 @@ fileline_initialize (struct backtrace_state *state,
descriptor = -1;
called_error_callback = 0;
for (pass = 0; pass < 10; ++pass)
for (pass = 0; pass < 11; ++pass)
{
int does_not_exist;
@ -285,6 +316,9 @@ fileline_initialize (struct backtrace_state *state,
case 9:
filename = windows_get_executable_path (buf, error_callback, data);
break;
case 10:
filename = hpux_get_executable_path (state, error_callback, data);
break;
default:
abort ();
}