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hp.com!davidm 2004-08-31 13:59:10 +00:00
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32
include/ia64/jmpbuf.h
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/* libunwind - a platform-independent unwind library
Copyright (C) 2004 Hewlett-Packard Co
Contributed by David Mosberger-Tang <davidm@hpl.hp.com>
This file is part of libunwind.
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:
The above copyright notice and this permission notice shall be
included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/* Use glibc's jump-buffer indices; NPTL peeks at SP and BSP: */
#define JB_SP 0
#define JB_RP 8
#define JB_BSP 17
#define JB_MASK_SAVED 70
#define JB_MASK 71

31
include/x86/jmpbuf.h
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/* libunwind - a platform-independent unwind library
Copyright (C) 2004 Hewlett-Packard Co
Contributed by David Mosberger-Tang <davidm@hpl.hp.com>
This file is part of libunwind.
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:
The above copyright notice and this permission notice shall be
included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/* Use glibc's jump-buffer indices; NPTL peeks at SP: */
#define JB_SP 4
#define JB_RP 5
#define JB_MASK_SAVED 6
#define JB_MASK 7

31
include/x86_64/jmpbuf.h
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/* libunwind - a platform-independent unwind library
Copyright (C) 2004 Hewlett-Packard Co
Contributed by David Mosberger-Tang <davidm@hpl.hp.com>
This file is part of libunwind.
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:
The above copyright notice and this permission notice shall be
included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/* Use glibc's jump-buffer indices; NPTL peeks at SP: */
#define JB_SP 6
#define JB_RP 7
#define JB_MASK_SAVED 8
#define JB_MASK 9

38
src/ia64/longjmp.S
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@ -1,38 +0,0 @@
/* libunwind - a platform-independent unwind library
Copyright (C) 2004 Hewlett-Packard Co
Contributed by David Mosberger-Tang <davidm@hpl.hp.com>
This file is part of libunwind.
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:
The above copyright notice and this permission notice shall be
included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
.global _UI_longjmp_cont
.align 32
.proc longjmp_continuation
longjmp_continuation:
_UI_longjmp_cont: // non-function label for {sig,}longjmp.c
.prologue
.save rp, r15
.body
mov rp = r15
mov r8 = r16
br.sptk.many rp
.endp longjmp_continuation

123
tests/ia64-test-setjmp.c
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/* libunwind - a platform-independent unwind library
Copyright (C) 2004 Hewlett-Packard Co
Contributed by David Mosberger-Tang <davidm@hpl.hp.com>
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:
The above copyright notice and this permission notice shall be
included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/* Test to verify that we can siglongjmp() into a frame whose register
window is not backed by valid memory. */
#include <stdio.h>
#include <stdint.h>
#include <setjmp.h>
#include <signal.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/mman.h>
static sigjmp_buf env;
static int return_level;
static uintptr_t return_bsp;
static int verbose;
static void
sighandler (int signal, void *siginfo, void *sigcontext)
{
ucontext_t *uc = sigcontext;
int local = 0;
if (verbose)
printf ("got signal, stack at %p, saved bsp=0x%lx\n",
&local, uc->uc_mcontext.sc_ar_bsp);
siglongjmp (env, 1);
}
static void
doit (int n)
{
uintptr_t guard_page_addr, bsp = (uintptr_t) __builtin_ia64_bsp ();
if (n == 0)
{
size_t page_size = getpagesize ();
guard_page_addr = (bsp + page_size - 1) & -page_size;
if (verbose)
printf ("guard_page_addr = 0x%lx\n", (unsigned long) guard_page_addr);
if (mmap ((void *) guard_page_addr, page_size, PROT_NONE,
MAP_SHARED | MAP_ANONYMOUS, -1, 0) != (void *) guard_page_addr)
{
perror ("mmap");
exit (EXIT_FAILURE);
}
}
if (sigsetjmp (env, 1))
{
return_level = n;
return_bsp = bsp;
}
else
doit (n + 1);
}
int
main (int argc, char **argv)
{
struct sigaction sa;
stack_t ss;
if (argc > 1)
verbose = 1;
ss.ss_sp = malloc (2 * SIGSTKSZ);
if (ss.ss_sp == NULL)
{
puts ("failed to allocate alternate stack");
return EXIT_FAILURE;
}
ss.ss_flags = 0;
ss.ss_size = 2 * SIGSTKSZ;
if (sigaltstack (&ss, NULL) < 0)
{
printf ("sigaltstack failed %m\n");
return EXIT_FAILURE;
}
sa.sa_handler = (void (*) (int)) sighandler;
sigemptyset (&sa.sa_mask);
sa.sa_flags = SA_SIGINFO | SA_ONSTACK;
if (sigaction (SIGSEGV, &sa, NULL) < 0)
{
printf ("sigaction failed: %m\n");
exit (1);
}
doit (0);
if (verbose)
{
printf ("sigsetjmp returned at level %d bsp=0x%lx\n",
return_level, return_bsp);
puts ("Test succeeded!");
}
return EXIT_SUCCESS;
}