144 lines
5.0 KiB
Diff
144 lines
5.0 KiB
Diff
2006-10-29 Jan Kratochvil <jan.kratochvil@redhat.com>
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* gdb/symtab.c (matching_bfd_sections): Fix VMA matching for objects
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loaded at a different address than stored on the disk.
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2006-10-29 Jan Kratochvil <jan.kratochvil@redhat.com>
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* gdb.base/relativedebug.c, gdb.base/relativedebug.exp: New file,
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resolving of PC in libc pause(3) (with possibly different on-disk VMA).
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Index: ./gdb/symtab.c
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===================================================================
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--- ./gdb/symtab.c 17 Oct 2006 20:17:44 -0000 1.148
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+++ ./gdb/symtab.c 29 Oct 2006 22:29:21 -0000
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@@ -739,8 +739,11 @@ matching_bfd_sections (asection *first,
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if (bfd_get_section_size (first) != bfd_get_section_size (second))
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return 0;
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+ /* In-memory addresses may start at a different offset, relativize them. */
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if (bfd_get_section_vma (first->owner, first)
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- != bfd_get_section_vma (second->owner, second))
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+ - bfd_get_start_address (first->owner)
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+ != bfd_get_section_vma (second->owner, second)
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+ - bfd_get_start_address (second->owner))
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return 0;
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if (bfd_get_section_name (first->owner, first) == NULL
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Index: ./gdb/testsuite/gdb.base/relativedebug.c
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===================================================================
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--- /dev/null 1 Jan 1970 00:00:00 -0000
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+++ ./gdb/testsuite/gdb.base/relativedebug.c 29 Oct 2006 22:29:21 -0000
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@@ -0,0 +1,37 @@
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+/* This testcase is part of GDB, the GNU debugger.
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+
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+ Copyright 2006 Free Software Foundation, Inc.
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+
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+ This program is free software; you can redistribute it and/or modify
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+ it under the terms of the GNU General Public License as published by
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+ the Free Software Foundation; either version 2 of the License, or
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+ (at your option) any later version.
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+
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+ This program is distributed in the hope that it will be useful,
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+ but WITHOUT ANY WARRANTY; without even the implied warranty of
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+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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+ GNU General Public License for more details.
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+
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+ You should have received a copy of the GNU General Public License
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+ along with this program; if not, write to the Free Software
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+ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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+ 02111-1307, USA. */
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+
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+#include <unistd.h>
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+#include <stdlib.h>
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+#include <signal.h>
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+
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+
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+static void handler (int signo)
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+{
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+ abort ();
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+}
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+
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+int main (void)
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+{
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+ signal (SIGALRM, handler);
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+ alarm (1);
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+ pause ();
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+ pause ();
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+ return 0;
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+}
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Index: ./gdb/testsuite/gdb.base/relativedebug.exp
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===================================================================
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--- /dev/null 1 Jan 1970 00:00:00 -0000
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+++ ./gdb/testsuite/gdb.base/relativedebug.exp 29 Oct 2006 22:29:21 -0000
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@@ -0,0 +1,68 @@
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+# Copyright 2006 Free Software Foundation, Inc.
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+
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+# This program is free software; you can redistribute it and/or modify
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+# it under the terms of the GNU General Public License as published by
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+# the Free Software Foundation; either version 2 of the License, or
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+# (at your option) any later version.
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+#
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+# This program is distributed in the hope that it will be useful,
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+# but WITHOUT ANY WARRANTY; without even the implied warranty of
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+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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+# GNU General Public License for more details.
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+#
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+# You should have received a copy of the GNU General Public License
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+# along with this program; if not, write to the Free Software
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+# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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+
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+if $tracelevel then {
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+ strace $tracelevel
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+}
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+
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+set testfile relativedebug
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+set srcfile ${testfile}.c
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+set binfile ${objdir}/${subdir}/${testfile}
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+if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } {
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+ untested "Couldn't compile test program"
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+ return -1
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+}
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+
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+# Get things started.
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+
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+gdb_exit
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+gdb_start
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+gdb_reinitialize_dir $srcdir/$subdir
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+gdb_load ${binfile}
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+
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+# pause () -> SIGALRM -> handler () -> abort ()
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+
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+gdb_test "run" \
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+ ".*Program received signal SIGABRT, Aborted..*" \
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+ "run"
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+
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+# incorrect (#6):
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+# (gdb) bt
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+# #0 0x00325402 in __kernel_vsyscall ()
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+# #1 0x00718f20 in *__GI_raise (sig=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:64
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+# #2 0x0071a801 in *__GI_abort () at abort.c:88
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+# #3 0x0804841f in handler (signo=14) at ./gdb.base/relativedebug.c:27
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+# #4 <signal handler called>
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+# #5 0x00325402 in __kernel_vsyscall ()
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+# #6 0x0077ebc6 in ?? () from /lib/i686/nosegneg/libc.so.6
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+# #7 0x08048455 in main () at ./gdb.base/relativedebug.c:34
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+# (gdb)
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+
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+# correct (#6):
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+# (gdb) bt
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+# #0 0x00b33402 in __kernel_vsyscall ()
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+# #1 0x00718f20 in *__GI_raise (sig=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:64
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+# #2 0x0071a801 in *__GI_abort () at abort.c:88
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+# #3 0x0804841f in handler (signo=14) at ./gdb.base/relativedebug.c:27
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+# #4 <signal handler called>
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+# #5 0x00b33402 in __kernel_vsyscall ()
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+# #6 0x0077ebc6 in __pause_nocancel () from /lib/i686/nosegneg/libc.so.6
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+# #7 0x08048455 in main () at ./gdb.base/relativedebug.c:34
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+# (gdb)
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+
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+gdb_test "bt" \
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+ ".*\[^a-zA-Z\]pause\[^a-zA-Z\].*" \
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+ "pause(3) seen there"
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