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| author |   Alan Modra <amodra@gmail.com> | 2019-10-16 21:23:29 +1030 |
|---|---|---|
| committer | Alan Modra <amodra@gmail.com> | 2019-10-16 23:07:27 +1030 |
| commit | 22216541c1796e9e1331d6f4e16b03a6f02e7381 (patch) | |
| tree | 4591c034f7c483dc18ff09eb257d19d99e916f30 /ld/ChangeLog | |
| parent | Fix potential illegal memory access when disassembling corrupt RX binaries. (diff) | |
| download | binutils-gdb-22216541c1796e9e1331d6f4e16b03a6f02e7381.tar.gz binutils-gdb-22216541c1796e9e1331d6f4e16b03a6f02e7381.tar.bz2 binutils-gdb-22216541c1796e9e1331d6f4e16b03a6f02e7381.zip | |
PR13616, linker should pad executable sections with nops, not zeros
This implements padding of orphan executable sections for PowerPC.
Of course, the simple implementation of bfd_arch_ppc_nop_fill and
removing the NOP definition didn't work, with powerpc64 hitting a
testsuite failure linking to S-records. That's because the srec
target is BFD_ENDIAN_UNKNOWN so the test of bfd_big_endian (abfd) in
default_data_link_order therefore returned false, resulting in a
little-endian nop pattern. The rest of the patch fixes that problem
by adding a new field to bfd_link_info that can be used to determine
actual endianness on targets like srec.
PR 13616
include/
* bfdlink.h (struct bfd_link_info <big_endian>): New field.
bfd/
* cpu-powerpc.c (bfd_arch_ppc_nop_fill): New function, use it
for all ppc arch info.
* linker.c (default_data_link_order): Pass info->big_endian to
arch_info->fill function.
ld/
* emulparams/elf64lppc.sh (NOP): Don't define.
* emulparams/elf64ppc.sh (NOP): Don't define.
* ldwrite.c (build_link_order): Use link_info.big_endian. Move
code determining endian to use for data_statement to..
* ldemul.c (after_open_default): ..here. Set link_info.big_endian.
Diffstat (limited to 'ld/ChangeLog')
| -rw-r--r-- | ld/ChangeLog | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/ld/ChangeLog b/ld/ChangeLog index 5553095352d..f51e6466e68 100644 --- a/ld/ChangeLog +++ b/ld/ChangeLog @@ -1,5 +1,14 @@ 2019-10-16 Alan Modra <amodra@gmail.com> + PR 13616 + * emulparams/elf64lppc.sh (NOP): Don't define. + * emulparams/elf64ppc.sh (NOP): Don't define. + * ldwrite.c (build_link_order): Use link_info.big_endian. Move + code determining endian to use for data_statement to.. + * ldemul.c (after_open_default): ..here. Set link_info.big_endian. + +2019-10-16 Alan Modra <amodra@gmail.com> + * genscripts.sh: Correct comments. Remove outdated comment block saying "Generate 5 or 6 script files..". Remove description of ld options from comment emitted to script files, and order options |