diff options
Diffstat (limited to 'c')
| -rw-r--r-- | c/src/lib/libbsp/sparc/shared/irq_asm.S | 6 | ||||
| -rw-r--r-- | c/src/lib/libcpu/powerpc/new-exceptions/cpu_asm.S | 1 |
2 files changed, 5 insertions, 2 deletions
diff --git a/c/src/lib/libbsp/sparc/shared/irq_asm.S b/c/src/lib/libbsp/sparc/shared/irq_asm.S index 3d83431e54..075c7808d3 100644 --- a/c/src/lib/libbsp/sparc/shared/irq_asm.S +++ b/c/src/lib/libbsp/sparc/shared/irq_asm.S @@ -59,7 +59,11 @@ PUBLIC(_CPU_Context_switch) SYM(_CPU_Context_switch): st %g5, [%o0 + G5_OFFSET] ! save the global registers - st %g7, [%o0 + G7_OFFSET] + + /* + * No need to save the thread pointer %g7 since it is a thread + * invariant. It is initialized once in _CPU_Context_Initialize(). + */ std %l0, [%o0 + L0_OFFSET] ! save the local registers std %l2, [%o0 + L2_OFFSET] diff --git a/c/src/lib/libcpu/powerpc/new-exceptions/cpu_asm.S b/c/src/lib/libcpu/powerpc/new-exceptions/cpu_asm.S index c0e11da076..1289813f2e 100644 --- a/c/src/lib/libcpu/powerpc/new-exceptions/cpu_asm.S +++ b/c/src/lib/libcpu/powerpc/new-exceptions/cpu_asm.S @@ -336,7 +336,6 @@ PROC (_CPU_Context_switch): PPC_GPR_STORE r30, PPC_CONTEXT_OFFSET_GPR30(r3) PPC_GPR_STORE r31, PPC_CONTEXT_OFFSET_GPR31(r3) - stw r2, PPC_CONTEXT_OFFSET_GPR2(r3) stw r11, PPC_CONTEXT_OFFSET_ISR_DISPATCH_DISABLE(r3) #ifdef PPC_MULTILIB_ALTIVEC |