mirror of
https://sourceware.org/git/glibc.git
synced 2025-11-03 20:53:13 +03:00
79 lines
2.3 KiB
C
79 lines
2.3 KiB
C
/* Test that the GET_PC macro is consistent with the unwinder.
|
|
Copyright (C) 2019-2020 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public License as
|
|
published by the Free Software Foundation; either version 2.1 of the
|
|
License, or (at your option) any later version.
|
|
|
|
The GNU C Library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; see the file COPYING.LIB. If
|
|
not, see <https://www.gnu.org/licenses/>. */
|
|
|
|
/* This test searches for the value of the GET_PC macro in the
|
|
addresses obtained from the backtrace function. */
|
|
|
|
#include <array_length.h>
|
|
#include <execinfo.h>
|
|
#include <inttypes.h>
|
|
#include <signal.h>
|
|
#include <stdbool.h>
|
|
#include <stdio.h>
|
|
#include <support/check.h>
|
|
#include <support/xsignal.h>
|
|
#include <sigcontextinfo.h>
|
|
|
|
static bool handler_called;
|
|
|
|
static void
|
|
handler (int signal, siginfo_t *info, void *ctx)
|
|
{
|
|
TEST_COMPARE (signal, SIGUSR1);
|
|
|
|
uintptr_t pc = sigcontext_get_pc (ctx);
|
|
printf ("info: address in signal handler: 0x%" PRIxPTR "\n", pc);
|
|
|
|
void *callstack[10];
|
|
int callstack_count = backtrace (callstack, array_length (callstack));
|
|
TEST_VERIFY_EXIT (callstack_count > 0);
|
|
TEST_VERIFY_EXIT (callstack_count <= array_length (callstack));
|
|
bool found = false;
|
|
for (int i = 0; i < callstack_count; ++i)
|
|
{
|
|
const char *marker;
|
|
if ((uintptr_t) callstack[i] == pc)
|
|
{
|
|
found = true;
|
|
marker = " *";
|
|
}
|
|
else
|
|
marker = "";
|
|
printf ("info: call stack entry %d: 0x%" PRIxPTR "%s\n",
|
|
i, (uintptr_t) callstack[i], marker);
|
|
}
|
|
TEST_VERIFY (found);
|
|
handler_called = true;
|
|
}
|
|
|
|
static int
|
|
do_test (void)
|
|
{
|
|
struct sigaction sa =
|
|
{
|
|
.sa_sigaction = &handler,
|
|
.sa_flags = SA_SIGINFO
|
|
};
|
|
xsigaction (SIGUSR1, &sa, NULL);
|
|
raise (SIGUSR1);
|
|
TEST_VERIFY (handler_called);
|
|
return 0;
|
|
}
|
|
|
|
#include <support/test-driver.c>
|