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[PATCH / RFA] Add core file support functions to elf32-frv.c
- From: Kevin Buettner <kevinb at redhat dot com>
- To: binutils at sources dot redhat dot com
- Date: Tue, 14 Feb 2006 13:41:33 -0700
- Subject: [PATCH / RFA] Add core file support functions to elf32-frv.c
The patch below adds core file support for an FR-V processor running
either GNU/Linux or uClinux. (The core file format is the same for both.)
Okay to apply?
* elf32-frv.c (elf32_frv_grok_prstatus, elf32_frv_grok_psinfo):
New functions.
* elf_backend_grok_prstatus, elf_backend_grok_psinfo): Define.
Index: elf32-frv.c
===================================================================
RCS file: /cvs/src/src/bfd/elf32-frv.c,v
retrieving revision 1.43
diff -u -p -r1.43 elf32-frv.c
--- elf32-frv.c 15 Aug 2005 15:39:08 -0000 1.43
+++ elf32-frv.c 14 Feb 2006 20:33:02 -0000
@@ -78,6 +78,10 @@ static bfd_boolean frv_elf_merge_private
PARAMS ((bfd *, bfd *));
static bfd_boolean frv_elf_print_private_bfd_data
PARAMS ((bfd *, PTR));
+static bfd_boolean elf32_frv_grok_prstatus
+ PARAMS ((bfd *abfd, Elf_Internal_Note *note));
+static bfd_boolean elf32_frv_grok_psinfo
+ PARAMS ((bfd *abfd, Elf_Internal_Note *note));
static reloc_howto_type elf32_frv_howto_table [] =
{
@@ -6823,6 +6827,73 @@ frv_elf_print_private_bfd_data (abfd, pt
}
+/* Support for core dump NOTE sections. */
+
+static bfd_boolean
+elf32_frv_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
+{
+ int offset;
+ unsigned int raw_size;
+
+ switch (note->descsz)
+ {
+ default:
+ return FALSE;
+
+ case 268:
+ /* 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 + 24);
+
+ /* pr_reg: Note that raw_size is set to be the size of pr_reg plus
+ the size of `pr_exec_fdpic_loadmap' and `pr_interp_fdpic_loadmap',
+ both of which immediately follow `pr_reg'. This will allow these
+ fields to be viewed by GDB as registers. */
+ offset = 72;
+ raw_size = 184 + 4 + 4; /* This is...
+ sizeof (pr_reg)
+ + sizeof (pr_exec_fdpic_loadmap)
+ + sizeof (pr_interp_fdpic_loadmap) */
+
+ break;
+ }
+
+ /* Make a ".reg/999" section. */
+ return _bfd_elfcore_make_pseudosection (abfd, ".reg", raw_size,
+ note->descpos + offset);
+}
+
+static bfd_boolean
+elf32_frv_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
+{
+ switch (note->descsz)
+ {
+ default:
+ return FALSE;
+
+ case 124: /* Linux/FRV elf_prpsinfo */
+ elf_tdata (abfd)->core_program
+ = _bfd_elfcore_strndup (abfd, note->descdata + 28, 16);
+ elf_tdata (abfd)->core_command
+ = _bfd_elfcore_strndup (abfd, note->descdata + 44, 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;
+}
#define ELF_ARCH bfd_arch_frv
#define ELF_MACHINE_CODE EM_CYGNUS_FRV
#define ELF_MAXPAGESIZE 0x1000
@@ -6857,6 +6928,9 @@ frv_elf_print_private_bfd_data (abfd, pt
#define elf_backend_finish_dynamic_sections \
elf32_frv_finish_dynamic_sections
+#define elf_backend_grok_prstatus elf32_frv_grok_prstatus
+#define elf_backend_grok_psinfo elf32_frv_grok_psinfo
+
#include "elf32-target.h"
#undef ELF_MAXPAGESIZE