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[patch] Coredumps support on x86-64
- From: Michal Ludvig <mludvig at suse dot cz>
- To: binutils at sources dot redhat dot com
- Date: Fri, 24 May 2002 15:38:32 +0200
- Subject: [patch] Coredumps support on x86-64
- Organization: SuSE CR
Hi,
I'm about to commit this patch to CVS tree. It was approved off-line by
jh@suse.cz.
2002-05-24 Michal Ludvig <mludvig@suse.cz>
* elf64-x86-64.c (elf64_x86_64_grok_prstatus): Added.
(elf64_x86_64_grok_psinfo): Added.
Michal Ludvig
--
* SuSE CR, s.r.o * mludvig@suse.cz
* +420 2 9654 5373 * http://www.suse.cz
Index: elf64-x86-64.c
===================================================================
RCS file: /cvs/src/src/bfd/elf64-x86-64.c,v
retrieving revision 1.41
diff -c -3 -p -r1.41 elf64-x86-64.c
*** elf64-x86-64.c 7 May 2002 00:16:52 -0000 1.41
--- elf64-x86-64.c 24 May 2002 12:16:51 -0000
*************** static reloc_howto_type *elf64_x86_64_re
*** 125,130 ****
--- 125,134 ----
PARAMS ((bfd *, bfd_reloc_code_real_type));
static void elf64_x86_64_info_to_howto
PARAMS ((bfd *, arelent *, Elf64_Internal_Rela *));
+ static boolean elf64_x86_64_grok_prstatus
+ PARAMS ((bfd *, Elf_Internal_Note *));
+ static boolean elf64_x86_64_grok_psinfo
+ PARAMS ((bfd *, Elf_Internal_Note *));
static struct bfd_link_hash_table *elf64_x86_64_link_hash_table_create
PARAMS ((bfd *));
static boolean elf64_x86_64_elf_object_p PARAMS ((bfd *abfd));
*************** elf64_x86_64_info_to_howto (abfd, cache_
*** 208,213 ****
--- 212,284 ----
BFD_ASSERT (r_type == cache_ptr->howto->type);
}
+ /* Support for core dump NOTE sections. */
+ static boolean
+ elf64_x86_64_grok_prstatus (abfd, note)
+ bfd *abfd;
+ Elf_Internal_Note *note;
+ {
+ int offset;
+ size_t raw_size;
+
+ switch (note->descsz)
+ {
+ default:
+ return false;
+
+ case 336: /* Linux/x86_64 */
+ /* pr_cursig */
+ elf_tdata (abfd)->core_signal
+ = bfd_get_16 (abfd, note->descdata + 12);
+
+ /* pr_pid */
+ elf_tdata (abfd)->core_pid
+ = bfd_get_32 (abfd, note->descdata + 32);
+
+ /* pr_reg */
+ offset = 112;
+ raw_size = 216;
+
+ break;
+ }
+
+ /* Make a ".reg/999" section. */
+ return _bfd_elfcore_make_pseudosection (abfd, ".reg",
+ raw_size, note->descpos + offset);
+ }
+
+ static boolean
+ elf64_x86_64_grok_psinfo (abfd, note)
+ bfd *abfd;
+ Elf_Internal_Note *note;
+ {
+ switch (note->descsz)
+ {
+ default:
+ return false;
+
+ case 136: /* Linux/x86_64 elf_prpsinfo */
+ elf_tdata (abfd)->core_program
+ = _bfd_elfcore_strndup (abfd, note->descdata + 40, 16);
+ elf_tdata (abfd)->core_command
+ = _bfd_elfcore_strndup (abfd, note->descdata + 56, 80);
+ }
+
+ /* Note that for some reason, a spurious space is tacked
+ onto the end of the args in some (at least one anyway)
+ implementations, so strip it off if it exists. */
+
+ {
+ char *command = elf_tdata (abfd)->core_command;
+ int n = strlen (command);
+
+ if (0 < n && command[n - 1] == ' ')
+ command[n - 1] = '\0';
+ }
+
+ return true;
+ }
+
/* Functions for the x86-64 ELF linker. */
/* The name of the dynamic interpreter. This is put in the .interp
*************** elf64_x86_64_finish_dynamic_sections (ou
*** 2228,2233 ****
--- 2299,2306 ----
#define elf_backend_finish_dynamic_symbol elf64_x86_64_finish_dynamic_symbol
#define elf_backend_gc_mark_hook elf64_x86_64_gc_mark_hook
#define elf_backend_gc_sweep_hook elf64_x86_64_gc_sweep_hook
+ #define elf_backend_grok_prstatus elf64_x86_64_grok_prstatus
+ #define elf_backend_grok_psinfo elf64_x86_64_grok_psinfo
#define elf_backend_reloc_type_class elf64_x86_64_reloc_type_class
#define elf_backend_relocate_section elf64_x86_64_relocate_section
#define elf_backend_size_dynamic_sections elf64_x86_64_size_dynamic_sections