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| author | Alan Modra <amodra@gmail.com> | 2014-06-03 10:55:29 +0930 |
|---|---|---|
| committer | Alan Modra <amodra@gmail.com> | 2014-06-03 10:55:29 +0930 |
| commit | 397998fc32a34d3c8993ef46da45c3957a4dd402 (patch) | |
| tree | 2dba3305c8567097b13505879d970299d2b9ad08 /COPYING3.LIB | |
| parent | 61f5c66f62502f33e1f2441a043bd29bb3ad6ea5 (diff) | |
| download | gdb-397998fc32a34d3c8993ef46da45c3957a4dd402.zip gdb-397998fc32a34d3c8993ef46da45c3957a4dd402.tar.gz gdb-397998fc32a34d3c8993ef46da45c3957a4dd402.tar.bz2 | |
Support fusion for ELFv2 stubs
Power8 fuses addis,addi and addis,ld sequences when the target of the
addis is the same as the addi/ld. Thus
addis r12,r2,xxx@ha
addi r12,r12,xxx@l / ld r12,xxx@l(r12)
is faster than
addis r11,r2,xxx@ha
addi r12,r11,xxx@l / ld r12,xxx@l(r11)
So use the form that allows fusion in plt call and branch stubs.
bfd/
* elf64-ppc.c (ADDIS_R12_R2): Define.
(build_plt_stub): Support fusion on ELFv2 stub.
(ppc_build_one_stub): Likewise for plt branch stubs.
gold/
* powerpc.cc (addis_12_2): Define.
(Stub_table::do_write): Support fusion on ELFv2 stubs.
ld/testsuite/
* ld-powerpc/elfv2exe.d: Update for changed plt call stubs.
gdb/
* ppc64-tdep.c (ppc64_standard_linkage8): New.
(ppc64_skip_trampoline_code): Recognise ELFv2 stub supporting fusion.
Diffstat (limited to 'COPYING3.LIB')
0 files changed, 0 insertions, 0 deletions