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| author | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2013-06-24 15:21:46 +0200 |
|---|---|---|
| committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2013-11-18 14:56:43 +0100 |
| commit | 39a4574652f2f7bae2f18b4eb6f5f9bf788466a6 (patch) | |
| tree | bbe29cd999cf4e89d4e01f8cc983a9938d83a22a /cpukit/score/cpu/powerpc/ppc-context-validate.S | |
| parent | powerpc: Do not validate reserved XER bits (diff) | |
| download | rtems-39a4574652f2f7bae2f18b4eb6f5f9bf788466a6.tar.bz2 | |
powerpc: Add r2 to CPU context
The r2 may be used for thread-local storage.
Diffstat (limited to '')
| -rw-r--r-- | cpukit/score/cpu/powerpc/ppc-context-validate.S | 13 |
1 files changed, 4 insertions, 9 deletions
diff --git a/cpukit/score/cpu/powerpc/ppc-context-validate.S b/cpukit/score/cpu/powerpc/ppc-context-validate.S index ecf84d6eb8..c7f16591ae 100644 --- a/cpukit/score/cpu/powerpc/ppc-context-validate.S +++ b/cpukit/score/cpu/powerpc/ppc-context-validate.S @@ -110,7 +110,9 @@ _CPU_Context_validate: addi r25, r3, 20 addi r26, r3, 21 addi r27, r3, 22 - addi r28, r3, 23 + + /* GPR28 contains the GPR2 pattern */ + xor r28, r2, r3 /* GPR29 and CR are equal most of the time */ addi r29, r3, 24 @@ -197,7 +199,7 @@ check: addi r4, r3, 22 cmpw r4, r27 bne restore - addi r4, r3, 23 + xor r4, r2, r3 cmpw r4, r28 bne restore addi r4, r3, 24 @@ -224,13 +226,6 @@ check: bne restore cmpw r31, r1 bne restore -#if 0 - /* This is only valid if we use the EABI */ - lis r4, _SDA2_BASE_@h - ori r4, r4, _SDA2_BASE_@l - cmpw r4, r2 - bne restore -#endif mtcr r29 addi r5, r3, 1 b check |