mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-12-21 04:42:53 +08:00
42a4f53d2b
This commit applies all changes made after running the gdb/copyright.py script. Note that one file was flagged by the script, due to an invalid copyright header (gdb/unittests/basic_string_view/element_access/char/empty.cc). As the file was copied from GCC's libstdc++-v3 testsuite, this commit leaves this file untouched for the time being; a patch to fix the header was sent to gcc-patches first. gdb/ChangeLog: Update copyright year range in all GDB files.
106 lines
2.4 KiB
C
106 lines
2.4 KiB
C
/* This testcase is part of GDB, the GNU debugger.
|
|
|
|
Copyright 2011-2019 Free Software Foundation, Inc.
|
|
|
|
This program is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program 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 General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program. If not, see <http://www.gnu.org/licenses/>. */
|
|
|
|
/* Based on the gcc testcase `gcc/testsuite/gcc.dg/split-1.c'. This test
|
|
needs to use setrlimit to set the stack size, so it can only run on Unix.
|
|
*/
|
|
|
|
#include <stdlib.h>
|
|
#include <sys/types.h>
|
|
#include <sys/resource.h>
|
|
#include <stdio.h>
|
|
#include <sys/mman.h>
|
|
|
|
/* Use a noinline function to ensure that the buffer is not removed
|
|
from the stack. */
|
|
static void use_buffer (char *buf) __attribute__ ((noinline));
|
|
static void
|
|
use_buffer (char *buf)
|
|
{
|
|
buf[0] = '\0';
|
|
}
|
|
|
|
static volatile int marker_var;
|
|
|
|
static void
|
|
marker_miss (void)
|
|
{
|
|
marker_var = 0;
|
|
}
|
|
|
|
static void
|
|
marker_hit (void)
|
|
{
|
|
marker_var = 0;
|
|
}
|
|
|
|
void *reserved;
|
|
#define RESERVED_SIZE 0x1000000
|
|
|
|
/* Each recursive call uses 10,000 bytes. We call it 1000 times,
|
|
using a total of 10,000,000 bytes. If -fsplit-stack is not
|
|
working, that will overflow our stack limit. */
|
|
|
|
static void
|
|
down (int i)
|
|
{
|
|
char buf[10000];
|
|
static void *last;
|
|
|
|
if (last && last < (void *) buf)
|
|
{
|
|
printf ("%d: %p < %p\n", i, last, buf);
|
|
marker_hit ();
|
|
}
|
|
last = buf;
|
|
|
|
if (i == 500)
|
|
{
|
|
if (munmap (reserved, RESERVED_SIZE) != 0)
|
|
abort ();
|
|
reserved = NULL;
|
|
}
|
|
|
|
if (i > 0)
|
|
{
|
|
use_buffer (buf);
|
|
down (i - 1);
|
|
}
|
|
else
|
|
marker_miss ();
|
|
}
|
|
|
|
int
|
|
main (void)
|
|
{
|
|
struct rlimit r;
|
|
|
|
reserved = mmap (NULL, RESERVED_SIZE, PROT_READ | PROT_WRITE,
|
|
MAP_ANONYMOUS | MAP_PRIVATE, -1, 0);
|
|
if (reserved == MAP_FAILED)
|
|
abort ();
|
|
|
|
/* We set a stack limit because we are usually invoked via make, and
|
|
make sets the stack limit to be as large as possible. */
|
|
r.rlim_cur = 8192 * 1024;
|
|
r.rlim_max = 8192 * 1024;
|
|
if (setrlimit (RLIMIT_STACK, &r) != 0)
|
|
abort ();
|
|
down (1000);
|
|
return 0;
|
|
}
|