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* linux-tdep.c (linux_make_siginfo_note): New function.
	(linux_make_corefile_notes): Use it.
	* corelow.c (get_core_siginfo): New function.
	(core_xfer_partial) <TARGET_OBJECT_SIGNAL_INFO>: New case.
gdb/testsuite
	* gdb.base/siginfo-obj.exp: Create core file.  Test siginfo from
	core files, if possible.
	* gdb.base/siginfo-thread.c: New file
	* gdb.base/siginfo-thread.exp: New file
bfd
	* elf.c (elfcore_grok_note) <NT_SIGINFO>: New case; make
	pseudosection.
This commit is contained in:
Tom Tromey
2012-11-08 21:16:43 +00:00
parent ea9f10bb87
commit 9015683b1c
9 changed files with 347 additions and 0 deletions
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35
gdb/corelow.c
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@@ -656,6 +656,36 @@ add_to_spuid_list (bfd *abfd, asection *asect, void *list_p)
list->pos += 4;
}
/* Read siginfo data from the core, if possible. Returns -1 on
failure. Otherwise, returns the number of bytes read. ABFD is the
core file's BFD; READBUF, OFFSET, and LEN are all as specified by
the to_xfer_partial interface. */
static LONGEST
get_core_siginfo (bfd *abfd, gdb_byte *readbuf, ULONGEST offset, LONGEST len)
{
asection *section;
long pid;
char *section_name;
const char *name = ".note.linuxcore.siginfo";
if (ptid_get_lwp (inferior_ptid))
section_name = xstrprintf ("%s/%ld", name,
ptid_get_lwp (inferior_ptid));
else
section_name = xstrdup (name);
section = bfd_get_section_by_name (abfd, section_name);
xfree (section_name);
if (section == NULL)
return -1;
if (!bfd_get_section_contents (abfd, section, readbuf, offset, len))
return -1;
return len;
}
static LONGEST
core_xfer_partial (struct target_ops *ops, enum target_object object,
const char *annex, gdb_byte *readbuf,
@@ -794,6 +824,11 @@ core_xfer_partial (struct target_ops *ops, enum target_object object,
}
return -1;
case TARGET_OBJECT_SIGNAL_INFO:
if (readbuf)
return get_core_siginfo (core_bfd, readbuf, offset, len);
return -1;
default:
if (ops->beneath != NULL)
return ops->beneath->to_xfer_partial (ops->beneath, object,