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-rw-r--r--bfd/ChangeLog9
-rw-r--r--bfd/elf-bfd.h2
-rw-r--r--bfd/elf.c35
3 files changed, 46 insertions, 0 deletions
diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index d4525f1..31d0714 100644
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -1,3 +1,12 @@
+2021-03-05 Craig Blackmore <craig.blackmore@embecosm.com>
+ Andrew Burgess <andrew.burgess@embecosm.com>
+
+ * elf-bfd.h (elfcore_write_gdb_tdesc): Declare new function.
+ * elf.c (elfcore_grok_gdb_tdesc): New function.
+ (elfcore_grok_note): Handle NT_GDB_TDESC.
+ (elfcore_write_gdb_tdesc): New function.
+ (elfcore_write_register_note): Handle NT_GDB_TDESC.
+
2021-03-05 Nick Clifton <nickc@redhat.com>
PR 27521
diff --git a/bfd/elf-bfd.h b/bfd/elf-bfd.h
index dd66d98..69e1803 100644
--- a/bfd/elf-bfd.h
+++ b/bfd/elf-bfd.h
@@ -2798,6 +2798,8 @@ extern char *elfcore_write_aarch_pauth
(bfd *, char *, int *, const void *, int);
extern char *elfcore_write_arc_v2
(bfd *, char *, int *, const void *, int);
+extern char *elfcore_write_gdb_tdesc
+ (bfd *, char *, int *, const void *, int);
extern char *elfcore_write_lwpstatus
(bfd *, char *, int *, long, int, const void *);
extern char *elfcore_write_register_note
diff --git a/bfd/elf.c b/bfd/elf.c
index 087f05e..2d66e9b 100644
--- a/bfd/elf.c
+++ b/bfd/elf.c
@@ -9912,6 +9912,15 @@ elfcore_grok_arc_v2 (bfd *abfd, Elf_Internal_Note *note)
return elfcore_make_note_pseudosection (abfd, ".reg-arc-v2", note);
}
+/* Convert NOTE into a bfd_section called ".gdb-tdesc". Return TRUE if
+ successful otherwise, return FALSE. */
+
+static bfd_boolean
+elfcore_grok_gdb_tdesc (bfd *abfd, Elf_Internal_Note *note)
+{
+ return elfcore_make_note_pseudosection (abfd, ".gdb-tdesc", note);
+}
+
#if defined (HAVE_PRPSINFO_T)
typedef prpsinfo_t elfcore_psinfo_t;
#if defined (HAVE_PRPSINFO32_T) /* Sparc64 cross Sparc32 */
@@ -10570,6 +10579,13 @@ elfcore_grok_note (bfd *abfd, Elf_Internal_Note *note)
else
return TRUE;
+ case NT_GDB_TDESC:
+ if (note->namesz == 4
+ && strcmp (note->namedata, "GDB") == 0)
+ return elfcore_grok_gdb_tdesc (abfd, note);
+ else
+ return TRUE;
+
case NT_PRPSINFO:
case NT_PSINFO:
if (bed->elf_backend_grok_psinfo)
@@ -11951,6 +11967,23 @@ elfcore_write_arc_v2 (bfd *abfd,
note_name, NT_ARC_V2, arc_v2, size);
}
+/* Write the target description (a string) pointed to by TDESC, length
+ SIZE, into the note buffer BUF, and update *BUFSIZ. ABFD is the bfd the
+ note is being written into. Return a pointer to the new start of the
+ note buffer, to replace BUF which may no longer be valid. */
+
+char *
+elfcore_write_gdb_tdesc (bfd *abfd,
+ char *buf,
+ int *bufsiz,
+ const void *tdesc,
+ int size)
+{
+ const char *note_name = "GDB";
+ return elfcore_write_note (abfd, buf, bufsiz,
+ note_name, NT_GDB_TDESC, tdesc, size);
+}
+
char *
elfcore_write_register_note (bfd *abfd,
char *buf,
@@ -12035,6 +12068,8 @@ elfcore_write_register_note (bfd *abfd,
return elfcore_write_aarch_pauth (abfd, buf, bufsiz, data, size);
if (strcmp (section, ".reg-arc-v2") == 0)
return elfcore_write_arc_v2 (abfd, buf, bufsiz, data, size);
+ if (strcmp (section, ".gdb-tdesc") == 0)
+ return elfcore_write_gdb_tdesc (abfd, buf, bufsiz, data, size);
return NULL;
}