mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-23 17:53:37 +08:00
Add missing unwind information to ld.so on powerpc32 (bug 23707)
This commit is contained in:
Andreas Schwab
parent
61d8b5feee
commit
6ca8284e7a
@ -1,3 +1,12 @@
|
||||
2018-09-26 Andreas Schwab <schwab@suse.de>
|
||||
|
||||
[BZ #23707]
|
||||
* sysdeps/powerpc/powerpc32/dl-start.S: Add unwind information.
|
||||
* elf/Makefile (tests): Add tst-unwind-ctor.
|
||||
(modules-names): Add tst-unwind-ctor-lib.
|
||||
($(objpfx)tst-unwind-ctor): Depend on
|
||||
$(objpfx)tst-unwind-ctor-lib.so.
|
||||
|
||||
2018-09-26 Joseph Myers <joseph@codesourcery.com>
|
||||
|
||||
* sysdeps/unix/sysv/linux/bits/mman-map-flags-generic.h: New
|
||||
|
||||
@ -186,7 +186,8 @@ tests += restest1 preloadtest loadfail multiload origtest resolvfail \
|
||||
tst-tlsalign tst-tlsalign-extern tst-nodelete-opened \
|
||||
tst-nodelete2 tst-audit11 tst-audit12 tst-dlsym-error tst-noload \
|
||||
tst-latepthread tst-tls-manydynamic tst-nodelete-dlclose \
|
||||
tst-debug1 tst-main1 tst-absolute-sym tst-absolute-zero tst-big-note
|
||||
tst-debug1 tst-main1 tst-absolute-sym tst-absolute-zero tst-big-note \
|
||||
tst-unwind-ctor
|
||||
# reldep9
|
||||
tests-internal += loadtest unload unload2 circleload1 \
|
||||
neededtest neededtest2 neededtest3 neededtest4 \
|
||||
@ -273,7 +274,7 @@ modules-names = testobj1 testobj2 testobj3 testobj4 testobj5 testobj6 \
|
||||
tst-latepthreadmod $(tst-tls-many-dynamic-modules) \
|
||||
tst-nodelete-dlclose-dso tst-nodelete-dlclose-plugin \
|
||||
tst-main1mod tst-libc_dlvsym-dso tst-absolute-sym-lib \
|
||||
tst-absolute-zero-lib tst-big-note-lib
|
||||
tst-absolute-zero-lib tst-big-note-lib tst-unwind-ctor-lib
|
||||
# Most modules build with _ISOMAC defined, but those filtered out
|
||||
# depend on internal headers.
|
||||
modules-names-tests = $(filter-out ifuncmod% tst-libc_dlvsym-dso tst-tlsmod%,\
|
||||
@ -1492,3 +1493,5 @@ tst-libc_dlvsym-static-ENV = \
|
||||
$(objpfx)tst-libc_dlvsym-static.out: $(objpfx)tst-libc_dlvsym-dso.so
|
||||
|
||||
$(objpfx)tst-big-note: $(objpfx)tst-big-note-lib.so
|
||||
|
||||
$(objpfx)tst-unwind-ctor: $(objpfx)tst-unwind-ctor-lib.so
|
||||
|
||||
42
elf/tst-unwind-ctor-lib.c
Normal file
42
elf/tst-unwind-ctor-lib.c
Normal file
@ -0,0 +1,42 @@
|
||||
/* Unit test for _Unwind_Backtrace in a shared object constructor.
|
||||
Copyright (C) 2018 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; if not, see
|
||||
<http://www.gnu.org/licenses/>. */
|
||||
|
||||
#include <unwind.h>
|
||||
#include <unistd.h>
|
||||
|
||||
static _Unwind_Reason_Code
|
||||
callback (struct _Unwind_Context *ctx, void *arg)
|
||||
{
|
||||
return _URC_NO_REASON;
|
||||
}
|
||||
|
||||
static void
|
||||
__attribute__ ((constructor))
|
||||
do_unwind (void)
|
||||
{
|
||||
/* Arrange for this test to be killed if _Unwind_Backtrace runs into an
|
||||
endless loop. We cannot use the test driver since the test needs to
|
||||
run in a constructor. */
|
||||
alarm (20);
|
||||
_Unwind_Backtrace (callback, 0);
|
||||
}
|
||||
|
||||
void
|
||||
dummy (void)
|
||||
{
|
||||
}
|
||||
27
elf/tst-unwind-ctor.c
Normal file
27
elf/tst-unwind-ctor.c
Normal file
@ -0,0 +1,27 @@
|
||||
/* Unit test for _Unwind_Backtrace in a shared object constructor.
|
||||
Copyright (C) 2018 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; if not, see
|
||||
<http://www.gnu.org/licenses/>. */
|
||||
|
||||
extern void dummy (void);
|
||||
|
||||
int
|
||||
main (void)
|
||||
{
|
||||
/* Just call a dummy function in the shared library. The actual test
|
||||
runs in its constructor. */
|
||||
dummy ();
|
||||
}
|
||||
@ -34,6 +34,9 @@ ENTRY(_start)
|
||||
_dl_start to save the link register). */
|
||||
li r4,0
|
||||
addi r1,r1,-16
|
||||
cfi_adjust_cfa_offset (16)
|
||||
/* Mark lr as undefined to stop unwinding. */
|
||||
cfi_undefined (lr)
|
||||
stw r4,0(r1)
|
||||
bl _dl_start@local
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user