http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55536
Bug #: 55536
Summary: libbacktrace abort in backtrace_alloc at mmap.c:99
running btest
Classification: Unclassified
Product: gcc
Version: 4.8.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: other
AssignedTo: unassig...@gcc.gnu.org
ReportedBy: dang...@gcc.gnu.org
Host: hppa*-*-hpux*
Target: hppa*-*-hpux*
Build: hppa*-*-hpux*
# gdb btest
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Reading symbols from /home/gnu/gcc/objdir/libbacktrace/btest...done.
(gdb) r
Starting program: /home/gnu/gcc/objdir/libbacktrace/btest
warning: Private mapping of shared library text was not specified
by the executable; setting a breakpoint in a shared library which
is not privately mapped will not work. See the HP-UX 11i v3 chatr
manpage for methods to privately map shared library text.
Program received signal SIGABRT, Aborted.
0xc0000000001e05fc in kill () from /lib/pa20_64/libc.2
(gdb) bt
#0 0xc0000000001e05fc in kill () from /lib/pa20_64/libc.2
#1 0xc00000000019352c in raise () from /lib/pa20_64/libc.2
#2 0xc0000000001c7684 in abort_C () from /lib/pa20_64/libc.2
#3 0xc0000000001c76e4 in abort () from /lib/pa20_64/libc.2
#4 0x400000000000709c in backtrace_alloc (
state=state@entry=0x800003ffefff0b68, size=size@entry=72,
error_callback=error_callback@entry=0x4000000000004d90
<error_callback_create>, data=data@entry=0x0) at
../../gcc/libbacktrace/mmap.c:99
#5 0x4000000000005f28 in backtrace_create_state (filename=<optimized out>,
threaded=threaded@entry=0,
error_callback=error_callback@entry=0x4000000000004d90
<error_callback_create>, data=data@entry=0x0) at
../../gcc/libbacktrace/state.c:65
#6 0x400000000001436c in main (argc=<optimized out>, argv=<optimized out>)
at ../../gcc/libbacktrace/btest.c:617
In internal.h:
#ifndef HAVE_SYNC_FUNCTIONS
/* Define out the sync functions. These should never be called if
they are not available. */
#define __sync_bool_compare_and_swap(A, B, C) (abort(), 1)
#define __sync_lock_test_and_set(A, B) (abort(), 0)
In mmap.c:
/* If we can acquire the lock, then see if there is space on the
free list. If we can't acquire the lock, drop straight into
using mmap. __sync_lock_test_and_set returns the old state of
the lock, so we have acquired it if it returns 0. */
if (!__sync_lock_test_and_set (&state->lock_alloc, 1))
Same in backtrace_free.
