On 10/29/2009 08:16 PM, John David Anglin wrote:
On Wed, 28 Oct 2009, Helge Deller wrote:
On 10/28/2009 11:43 PM, Helge Deller wrote:
On 10/28/2009 11:18 PM, John David Anglin wrote:
and whether it follows inb in its .o. From my understanding of things,
it shouldn't be necessary to remove the unwind info for unused weak
symbols if they aren't garbage collected. A simple testcase would
be helpful.
Attached is a testcase (t1.c and t2.c):
t1.c contains weak function f().
t2.c contains non-weak function f().
hppa-linux-gcc -c t1.c t2.c
hppa-linux-ld -r -o all.o t1.o t2.o
Attached is a patch for gas that seems to produce reasonable
unwind info for the testcase when all.o is linked into a final
executable. I think it will fix the linux unwind problem.
Hi Dave,
Yes, this patch fixes the problem for vmlinux :-)
Just tested it with a 32bit kernel build.
Still need to look at readelf -u on .o's.
Yes, I see this too. readelf -u doesn't print any longer the second line of:
<arch_mod_section_prepend>: [0x1011fc4c-0x1011fc74]
Entry_GR=1 Save_SP Total_frame_size=8
Thanks!
Helge
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