mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2024-11-14 06:07:30 +02:00
e772a8b1a3
git-svn-id: svn://svn.openwrt.org/openwrt/trunk/openwrt@1166 3c298f89-4303-0410-b956-a3cf2f4a3e73
246 lines
8.8 KiB
Diff
246 lines
8.8 KiB
Diff
Status: Checked in to HEAD after 6.3.
|
||
|
||
2004-11-07 Andrew Cagney <cagney@redhat.com>
|
||
Daniel Jacobowitz <dan@debian.org>
|
||
Roland McGrath <roland@redhat.com>
|
||
|
||
* Makefile.in (symfile-mem.o): Update dependencies.
|
||
* i386-linux-tdep.c (i386_linux_dwarf_signal_frame_p): New.
|
||
(i386_linux_init_abi): Call dwarf2_frame_set_signal_frame_p.
|
||
* inf-ptrace.c (inf_ptrace_attach): Call
|
||
observer_notify_inferior_created.
|
||
* inftarg.c (child_attach): Likewise.
|
||
* symfile-mem.c: Include "observer.h", "auxv.h", and "elf/common.h".
|
||
(symbol_file_add_from_memory): Take NAME argument. Use it for
|
||
the new BFD's filename.
|
||
(add_symbol_file_from_memory_command): Update call to
|
||
symbol_file_add_from_memory.
|
||
(struct symbol_file_add_from_memory_args, add_vsyscall_page)
|
||
(symbol_file_add_from_memory_wrapper): New.
|
||
(_initialize_symfile_mem): Register add_vsyscall_page as an
|
||
inferior_created observer.
|
||
|
||
Index: gdb-6.3/gdb/i386-linux-tdep.c
|
||
===================================================================
|
||
--- gdb-6.3.orig/gdb/i386-linux-tdep.c 2004-08-06 16:58:28.000000000 -0400
|
||
+++ gdb-6.3/gdb/i386-linux-tdep.c 2004-11-10 00:55:06.669398770 -0500
|
||
@@ -27,6 +27,7 @@
|
||
#include "inferior.h"
|
||
#include "osabi.h"
|
||
#include "reggroups.h"
|
||
+#include "dwarf2-frame.h"
|
||
|
||
#include "gdb_string.h"
|
||
|
||
@@ -244,6 +245,27 @@ i386_linux_sigtramp_p (struct frame_info
|
||
|| strcmp ("__restore_rt", name) == 0);
|
||
}
|
||
|
||
+/* Return one if the unwound PC from NEXT_FRAME is in a signal trampoline
|
||
+ which may have DWARF-2 CFI. */
|
||
+
|
||
+static int
|
||
+i386_linux_dwarf_signal_frame_p (struct gdbarch *gdbarch,
|
||
+ struct frame_info *next_frame)
|
||
+{
|
||
+ CORE_ADDR pc = frame_pc_unwind (next_frame);
|
||
+ char *name;
|
||
+
|
||
+ find_pc_partial_function (pc, &name, NULL, NULL);
|
||
+
|
||
+ /* If a vsyscall DSO is in use, the signal trampolines may have these
|
||
+ names. */
|
||
+ if (name && (strcmp (name, "__kernel_sigreturn") == 0
|
||
+ || strcmp (name, "__kernel_rt_sigreturn") == 0))
|
||
+ return 1;
|
||
+
|
||
+ return 0;
|
||
+}
|
||
+
|
||
/* Offset to struct sigcontext in ucontext, from <asm/ucontext.h>. */
|
||
#define I386_LINUX_UCONTEXT_SIGCONTEXT_OFFSET 20
|
||
|
||
@@ -414,6 +436,8 @@ i386_linux_init_abi (struct gdbarch_info
|
||
|
||
/* GNU/Linux uses the dynamic linker included in the GNU C Library. */
|
||
set_gdbarch_skip_solib_resolver (gdbarch, glibc_skip_solib_resolver);
|
||
+
|
||
+ dwarf2_frame_set_signal_frame_p (gdbarch, i386_linux_dwarf_signal_frame_p);
|
||
}
|
||
|
||
/* Provide a prototype to silence -Wmissing-prototypes. */
|
||
Index: gdb-6.3/gdb/inf-ptrace.c
|
||
===================================================================
|
||
--- gdb-6.3.orig/gdb/inf-ptrace.c 2004-10-15 09:29:33.000000000 -0400
|
||
+++ gdb-6.3/gdb/inf-ptrace.c 2004-11-10 00:53:43.697615843 -0500
|
||
@@ -220,6 +220,10 @@ inf_ptrace_attach (char *args, int from_
|
||
|
||
inferior_ptid = pid_to_ptid (pid);
|
||
push_target (ptrace_ops_hack);
|
||
+
|
||
+ /* Do this first, before anything has had a chance to query the
|
||
+ inferior's symbol table or similar. */
|
||
+ observer_notify_inferior_created (¤t_target, from_tty);
|
||
}
|
||
|
||
static void
|
||
Index: gdb-6.3/gdb/inftarg.c
|
||
===================================================================
|
||
--- gdb-6.3.orig/gdb/inftarg.c 2004-10-08 16:29:47.000000000 -0400
|
||
+++ gdb-6.3/gdb/inftarg.c 2004-11-10 00:53:43.711613107 -0500
|
||
@@ -211,6 +211,10 @@ child_attach (char *args, int from_tty)
|
||
|
||
inferior_ptid = pid_to_ptid (pid);
|
||
push_target (&deprecated_child_ops);
|
||
+
|
||
+ /* Do this first, before anything has had a chance to query the
|
||
+ inferior's symbol table or similar. */
|
||
+ observer_notify_inferior_created (¤t_target, from_tty);
|
||
}
|
||
|
||
#if !defined(CHILD_POST_ATTACH)
|
||
Index: gdb-6.3/gdb/symfile-mem.c
|
||
===================================================================
|
||
--- gdb-6.3.orig/gdb/symfile-mem.c 2004-07-17 10:24:07.000000000 -0400
|
||
+++ gdb-6.3/gdb/symfile-mem.c 2004-11-10 00:53:43.722610958 -0500
|
||
@@ -52,13 +52,19 @@
|
||
#include "target.h"
|
||
#include "value.h"
|
||
#include "symfile.h"
|
||
+#include "observer.h"
|
||
+#include "auxv.h"
|
||
+#include "elf/common.h"
|
||
|
||
|
||
/* Read inferior memory at ADDR to find the header of a loaded object file
|
||
and read its in-core symbols out of inferior memory. TEMPL is a bfd
|
||
- representing the target's format. */
|
||
+ representing the target's format. NAME is the name to use for this
|
||
+ symbol file in messages; it can be NULL or a malloc-allocated string
|
||
+ which will be attached to the BFD. */
|
||
static struct objfile *
|
||
-symbol_file_add_from_memory (struct bfd *templ, CORE_ADDR addr, int from_tty)
|
||
+symbol_file_add_from_memory (struct bfd *templ, CORE_ADDR addr, char *name,
|
||
+ int from_tty)
|
||
{
|
||
struct objfile *objf;
|
||
struct bfd *nbfd;
|
||
@@ -75,7 +81,10 @@ symbol_file_add_from_memory (struct bfd
|
||
if (nbfd == NULL)
|
||
error ("Failed to read a valid object file image from memory.");
|
||
|
||
- nbfd->filename = xstrdup ("shared object read from target memory");
|
||
+ if (name == NULL)
|
||
+ nbfd->filename = xstrdup ("shared object read from target memory");
|
||
+ else
|
||
+ nbfd->filename = name;
|
||
|
||
if (!bfd_check_format (nbfd, bfd_object))
|
||
{
|
||
@@ -129,7 +138,73 @@ add_symbol_file_from_memory_command (cha
|
||
error ("\
|
||
Must use symbol-file or exec-file before add-symbol-file-from-memory.");
|
||
|
||
- symbol_file_add_from_memory (templ, addr, from_tty);
|
||
+ symbol_file_add_from_memory (templ, addr, NULL, from_tty);
|
||
+}
|
||
+
|
||
+/* Arguments for symbol_file_add_from_memory_wrapper. */
|
||
+
|
||
+struct symbol_file_add_from_memory_args
|
||
+{
|
||
+ struct bfd *bfd;
|
||
+ CORE_ADDR sysinfo_ehdr;
|
||
+ char *name;
|
||
+ int from_tty;
|
||
+};
|
||
+
|
||
+/* Wrapper function for symbol_file_add_from_memory, for
|
||
+ catch_exceptions. */
|
||
+
|
||
+static int
|
||
+symbol_file_add_from_memory_wrapper (struct ui_out *uiout, void *data)
|
||
+{
|
||
+ struct symbol_file_add_from_memory_args *args = data;
|
||
+
|
||
+ symbol_file_add_from_memory (args->bfd, args->sysinfo_ehdr, args->name,
|
||
+ args->from_tty);
|
||
+ return 0;
|
||
+}
|
||
+
|
||
+/* Try to add the symbols for the vsyscall page, if there is one. This function
|
||
+ is called via the inferior_created observer. */
|
||
+
|
||
+static void
|
||
+add_vsyscall_page (struct target_ops *target, int from_tty)
|
||
+{
|
||
+ CORE_ADDR sysinfo_ehdr;
|
||
+
|
||
+ if (target_auxv_search (target, AT_SYSINFO_EHDR, &sysinfo_ehdr) > 0
|
||
+ && sysinfo_ehdr != (CORE_ADDR) 0)
|
||
+ {
|
||
+ struct bfd *bfd;
|
||
+ struct symbol_file_add_from_memory_args args;
|
||
+
|
||
+ if (core_bfd != NULL)
|
||
+ bfd = core_bfd;
|
||
+ else if (exec_bfd != NULL)
|
||
+ bfd = exec_bfd;
|
||
+ else
|
||
+ /* FIXME: cagney/2004-05-06: Should not require an existing
|
||
+ BFD when trying to create a run-time BFD of the VSYSCALL
|
||
+ page in the inferior. Unfortunately that's the current
|
||
+ interface so for the moment bail. Introducing a
|
||
+ ``bfd_runtime'' (a BFD created using the loaded image) file
|
||
+ format should fix this. */
|
||
+ {
|
||
+ warning ("could not load vsyscall page because no executable was specified");
|
||
+ warning ("try using the \"file\" command first");
|
||
+ return;
|
||
+ }
|
||
+ args.bfd = bfd;
|
||
+ args.sysinfo_ehdr = sysinfo_ehdr;
|
||
+ xasprintf (&args.name, "system-supplied DSO at 0x%s",
|
||
+ paddr_nz (sysinfo_ehdr));
|
||
+ /* Pass zero for FROM_TTY, because the action of loading the
|
||
+ vsyscall DSO was not triggered by the user, even if the user
|
||
+ typed "run" at the TTY. */
|
||
+ args.from_tty = 0;
|
||
+ catch_exceptions (uiout, symbol_file_add_from_memory_wrapper,
|
||
+ &args, NULL, RETURN_MASK_ALL);
|
||
+ }
|
||
}
|
||
|
||
|
||
@@ -143,4 +218,7 @@ Load the symbols out of memory from a dy
|
||
Give an expression for the address of the file's shared object file header.",
|
||
&cmdlist);
|
||
|
||
+ /* Want to know of each new inferior so that its vsyscall info can
|
||
+ be extracted. */
|
||
+ observer_attach_inferior_created (add_vsyscall_page);
|
||
}
|
||
Index: gdb-6.3/gdb/Makefile.in
|
||
===================================================================
|
||
--- gdb-6.3.orig/gdb/Makefile.in 2004-11-10 00:29:00.000000000 -0500
|
||
+++ gdb-6.3/gdb/Makefile.in 2004-11-10 00:54:47.728100986 -0500
|
||
@@ -2020,7 +2020,7 @@ i386-linux-nat.o: i386-linux-nat.c $(def
|
||
i386-linux-tdep.o: i386-linux-tdep.c $(defs_h) $(gdbcore_h) $(frame_h) \
|
||
$(value_h) $(regcache_h) $(inferior_h) $(osabi_h) $(reggroups_h) \
|
||
$(gdb_string_h) $(i386_tdep_h) $(i386_linux_tdep_h) $(glibc_tdep_h) \
|
||
- $(solib_svr4_h)
|
||
+ $(solib_svr4_h) $(dwarf2_frame_h)
|
||
i386ly-tdep.o: i386ly-tdep.c $(defs_h) $(gdbcore_h) $(inferior_h) \
|
||
$(regcache_h) $(target_h) $(osabi_h) $(i386_tdep_h)
|
||
i386-nat.o: i386-nat.c $(defs_h) $(breakpoint_h) $(command_h) $(gdbcmd_h)
|
||
@@ -2606,7 +2606,8 @@ symfile.o: symfile.c $(defs_h) $(bfdlink
|
||
$(hashtab_h) $(readline_h) $(gdb_assert_h) $(block_h) \
|
||
$(gdb_string_h) $(gdb_stat_h)
|
||
symfile-mem.o: symfile-mem.c $(defs_h) $(symtab_h) $(gdbcore_h) \
|
||
- $(objfiles_h) $(gdbcmd_h) $(target_h) $(value_h) $(symfile_h)
|
||
+ $(objfiles_h) $(gdbcmd_h) $(target_h) $(value_h) $(symfile_h) \
|
||
+ $(observer_h) $(auxv_h) $(elf_common_h)
|
||
symmisc.o: symmisc.c $(defs_h) $(symtab_h) $(gdbtypes_h) $(bfd_h) \
|
||
$(symfile_h) $(objfiles_h) $(breakpoint_h) $(command_h) \
|
||
$(gdb_obstack_h) $(language_h) $(bcache_h) $(block_h) $(gdb_regex_h) \
|