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| author |   Nicholas Piggin <npiggin@gmail.com> | 2016-10-13 16:42:53 +1100 |
|---|---|---|
| committer |   Michael Ellerman <mpe@ellerman.id.au> | 2016-11-14 11:11:51 +1100 |
| commit | 24bfa6a9e0d4fe414dfc4ad06c93e10c4c37194e (patch) | |
| tree | 13368fce0b6bc8558aad558dc275368f2dc44afc /arch/powerpc/lib/copy_32.S | |
| parent | selftests/powerpc: Fail load_unaligned_zeropad on miscompare (diff) | |
| download | linux-stable-24bfa6a9e0d4fe414dfc4ad06c93e10c4c37194e.tar.xz linux-stable-24bfa6a9e0d4fe414dfc4ad06c93e10c4c37194e.zip | |
powerpc: EX_TABLE macro for exception tables
This macro is taken from s390, and allows more flexibility in
changing exception table format.
mpe: Put it in ppc_asm.h and only define one version using
stringinfy_in_c(). Add some empty definitions and headers to keep the
selftests happy.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/lib/copy_32.S')
| -rw-r--r-- | arch/powerpc/lib/copy_32.S | 55 |
1 files changed, 22 insertions, 33 deletions
diff --git a/arch/powerpc/lib/copy_32.S b/arch/powerpc/lib/copy_32.S index 40cce33b08d6..ff0d894d7ff9 100644 --- a/arch/powerpc/lib/copy_32.S +++ b/arch/powerpc/lib/copy_32.S @@ -49,17 +49,14 @@ 9 ## n ## 1: \ addi r5,r5,-(16 * n); \ b 105f; \ -.section __ex_table,"a"; \ - .align 2; \ - .long 8 ## n ## 0b,9 ## n ## 0b; \ - .long 8 ## n ## 1b,9 ## n ## 0b; \ - .long 8 ## n ## 2b,9 ## n ## 0b; \ - .long 8 ## n ## 3b,9 ## n ## 0b; \ - .long 8 ## n ## 4b,9 ## n ## 1b; \ - .long 8 ## n ## 5b,9 ## n ## 1b; \ - .long 8 ## n ## 6b,9 ## n ## 1b; \ - .long 8 ## n ## 7b,9 ## n ## 1b; \ - .text + EX_TABLE(8 ## n ## 0b,9 ## n ## 0b); \ + EX_TABLE(8 ## n ## 1b,9 ## n ## 0b); \ + EX_TABLE(8 ## n ## 2b,9 ## n ## 0b); \ + EX_TABLE(8 ## n ## 3b,9 ## n ## 0b); \ + EX_TABLE(8 ## n ## 4b,9 ## n ## 1b); \ + EX_TABLE(8 ## n ## 5b,9 ## n ## 1b); \ + EX_TABLE(8 ## n ## 6b,9 ## n ## 1b); \ + EX_TABLE(8 ## n ## 7b,9 ## n ## 1b) .text .stabs "arch/powerpc/lib/",N_SO,0,0,0f @@ -323,13 +320,10 @@ _GLOBAL(__copy_tofrom_user) 73: stwu r9,4(r6) bdnz 72b - .section __ex_table,"a" - .align 2 - .long 70b,100f - .long 71b,101f - .long 72b,102f - .long 73b,103f - .text + EX_TABLE(70b,100f) + EX_TABLE(71b,101f) + EX_TABLE(72b,102f) + EX_TABLE(73b,103f) 58: srwi. r0,r5,LG_CACHELINE_BYTES /* # complete cachelines */ clrlwi r5,r5,32-LG_CACHELINE_BYTES @@ -364,10 +358,7 @@ _GLOBAL(__copy_tofrom_user) 53: dcbt r3,r4 54: dcbz r11,r6 - .section __ex_table,"a" - .align 2 - .long 54b,105f - .text + EX_TABLE(54b,105f) /* the main body of the cacheline loop */ COPY_16_BYTES_WITHEX(0) #if L1_CACHE_BYTES >= 32 @@ -500,15 +491,13 @@ _GLOBAL(__copy_tofrom_user) bdnz 114b 120: blr - .section __ex_table,"a" - .align 2 - .long 30b,108b - .long 31b,109b - .long 40b,110b - .long 41b,111b - .long 130b,132b - .long 131b,120b - .long 112b,120b - .long 114b,120b - .text + EX_TABLE(30b,108b) + EX_TABLE(31b,109b) + EX_TABLE(40b,110b) + EX_TABLE(41b,111b) + EX_TABLE(130b,132b) + EX_TABLE(131b,120b) + EX_TABLE(112b,120b) + EX_TABLE(114b,120b) + EXPORT_SYMBOL(__copy_tofrom_user) |