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| author | Christophe Leroy <christophe.leroy@c-s.fr> | 2018-04-17 19:08:18 +0200 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2018-05-18 00:09:06 +1000 |
| commit | a1f3ae3fe8a1883c339f1bc89d1c941b3809e084 (patch) | |
| tree | d830fbdffa3dac41aba47c6683b3fe08413ebc7e /tools/perf/scripts/python/bin/stackcollapse-report | |
| parent | powerpc: Avoid an unnecessary test and branch in longjmp() (diff) | |
| download | linux-a1f3ae3fe8a1883c339f1bc89d1c941b3809e084.tar.gz linux-a1f3ae3fe8a1883c339f1bc89d1c941b3809e084.zip | |
powerpc/32: Use stmw/lmw for registers save/restore in asm
arch/powerpc/Makefile activates -mmultiple on BE PPC32 configs
in order to use multiple word instructions in functions entry/exit.
The patch does the same for the asm parts, for consistency.
On processors like the 8xx on which insn fetching is pretty slow,
this speeds up registers save/restore.
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
[mpe: PPC32 is BE only, so drop the endian checks]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'tools/perf/scripts/python/bin/stackcollapse-report')
0 files changed, 0 insertions, 0 deletions