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objcopy --only-keep-debug and ELF program headers
- From: Alan Modra <amodra at bigpond dot net dot au>
- To: binutils at sourceware dot org
- Cc: Nick Clifton <nickc at redhat dot com>
- Date: Thu, 10 May 2007 15:28:08 +0930
- Subject: objcopy --only-keep-debug and ELF program headers
This removes program headers entirely from ELF debug info files.
I can't see that they're needed, and existing comments in objcopy.c
tend to reinforce this. Furthermore, a quick hello world test shows
gdb is happy. However, I'll wait for Nick to give the OK on this one
since I haven't played much with separate debug info.
PR 4479
* objcopy.c (copy_object): Don't copy ELF program headers for
--only-keep-debug.
Index: binutils/objcopy.c
===================================================================
RCS file: /cvs/src/src/binutils/objcopy.c,v
retrieving revision 1.110
diff -u -p -r1.110 objcopy.c
--- binutils/objcopy.c 26 Apr 2007 14:46:59 -0000 1.110
+++ binutils/objcopy.c 10 May 2007 05:25:13 -0000
@@ -1423,7 +1423,12 @@ copy_object (bfd *ibfd, bfd *obfd)
any output is done. Thus, we traverse all sections multiple times. */
bfd_map_over_sections (ibfd, setup_section, obfd);
- setup_bfd_headers (ibfd, obfd);
+ /* Don't copy headers when creating an ELF format debug info file. */
+ if (bfd_get_flavour (ibfd) == bfd_target_elf_flavour
+ && strip_symbols == STRIP_NONDEBUG)
+ ;
+ else
+ setup_bfd_headers (ibfd, obfd);
if (add_sections != NULL)
{
--
Alan Modra
IBM OzLabs - Linux Technology Centre