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[Bug ld/25569] PDP11 ld -s clobbers last data byte
From: |
cvs-commit at gcc dot gnu.org |
Subject: |
[Bug ld/25569] PDP11 ld -s clobbers last data byte |
Date: |
Fri, 21 Feb 2020 00:18:13 +0000 |
https://sourceware.org/bugzilla/show_bug.cgi?id=25569
--- Comment #1 from cvs-commit at gcc dot gnu.org <cvs-commit at gcc dot
gnu.org> ---
The master branch has been updated by Alan Modra <address@hidden>:
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=dda2980f54a0c9437de047f3020f520dd1e0de6a
commit dda2980f54a0c9437de047f3020f520dd1e0de6a
Author: Alan Modra <address@hidden>
Date: Thu Feb 20 21:53:44 2020 +1030
PR25569, PDP11 ld -s clobbers last data byte
This patch fixes an ancient wart in aout support, in that text and
data section sizes are rounded up for alignment rather that just the
corresponding header sizes. Changing section sizes could conceivably
result in buffer overflows if section contents were held in memory.
Also, keeping the original section sizes allows this PR to be fixed
nicely.
bfd/
PR 25569
* aoutx.h (adjust_o_magic, adjust_z_magic, adjust_n_magic): Use
"text", "data" and "bss" section pointer vars. Don't update
section size, just exec header sizes.
(adjust_sizes_and_vmas): Don't update text section size. Set
initial exec header a_text. Print exec headers sizes.
* pdp11.c (adjust_o_magic, adjust_z_magic, adjust_n_magic),
(adjust_sizes_and_vmas): Similarly. Formatting.
(final_link): Correct final file extension.
gas/
PR 25569
* config/obj-aout.c (obj_aout_frob_file_before_fix): Don't loop
on section size adjustment, instead perform another write if
exec header size is larger than section size.
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