diff options
| -rw-r--r-- | src/UnwindRegistersRestore.S | 238 | ||||
| -rw-r--r-- | src/UnwindRegistersSave.S | 270 | ||||
| -rw-r--r-- | src/assembly.h | 2 |
3 files changed, 254 insertions, 256 deletions
diff --git a/src/UnwindRegistersRestore.S b/src/UnwindRegistersRestore.S index 573a48b..0111356 100644 --- a/src/UnwindRegistersRestore.S +++ b/src/UnwindRegistersRestore.S @@ -395,119 +395,119 @@ Lnovec: #elif defined(__ppc__) DEFINE_LIBUNWIND_FUNCTION(_ZN9libunwind13Registers_ppc6jumptoEv) -; -; void libunwind::Registers_ppc::jumpto() -; -; On entry: -; thread_state pointer is in r3 -; - - ; restore integral registerrs - ; skip r0 for now - ; skip r1 for now - lwz r2, 16(r3) - ; skip r3 for now - ; skip r4 for now - ; skip r5 for now - lwz r6, 32(r3) - lwz r7, 36(r3) - lwz r8, 40(r3) - lwz r9, 44(r3) - lwz r10, 48(r3) - lwz r11, 52(r3) - lwz r12, 56(r3) - lwz r13, 60(r3) - lwz r14, 64(r3) - lwz r15, 68(r3) - lwz r16, 72(r3) - lwz r17, 76(r3) - lwz r18, 80(r3) - lwz r19, 84(r3) - lwz r20, 88(r3) - lwz r21, 92(r3) - lwz r22, 96(r3) - lwz r23,100(r3) - lwz r24,104(r3) - lwz r25,108(r3) - lwz r26,112(r3) - lwz r27,116(r3) - lwz r28,120(r3) - lwz r29,124(r3) - lwz r30,128(r3) - lwz r31,132(r3) - - ; restore float registers - lfd f0, 160(r3) - lfd f1, 168(r3) - lfd f2, 176(r3) - lfd f3, 184(r3) - lfd f4, 192(r3) - lfd f5, 200(r3) - lfd f6, 208(r3) - lfd f7, 216(r3) - lfd f8, 224(r3) - lfd f9, 232(r3) - lfd f10,240(r3) - lfd f11,248(r3) - lfd f12,256(r3) - lfd f13,264(r3) - lfd f14,272(r3) - lfd f15,280(r3) - lfd f16,288(r3) - lfd f17,296(r3) - lfd f18,304(r3) - lfd f19,312(r3) - lfd f20,320(r3) - lfd f21,328(r3) - lfd f22,336(r3) - lfd f23,344(r3) - lfd f24,352(r3) - lfd f25,360(r3) - lfd f26,368(r3) - lfd f27,376(r3) - lfd f28,384(r3) - lfd f29,392(r3) - lfd f30,400(r3) - lfd f31,408(r3) - - ; restore vector registers if any are in use - lwz r5,156(r3) ; test VRsave - cmpwi r5,0 - beq Lnovec - - subi r4,r1,16 - rlwinm r4,r4,0,0,27 ; mask low 4-bits - ; r4 is now a 16-byte aligned pointer into the red zone - ; the _vectorRegisters may not be 16-byte aligned so copy via red zone temp buffer +// +// void libunwind::Registers_ppc::jumpto() +// +// On entry: +// thread_state pointer is in r3 +// + + // restore integral registerrs + // skip r0 for now + // skip r1 for now + lwz %r2, 16(%r3) + // skip r3 for now + // skip r4 for now + // skip r5 for now + lwz %r6, 32(%r3) + lwz %r7, 36(%r3) + lwz %r8, 40(%r3) + lwz %r9, 44(%r3) + lwz %r10, 48(%r3) + lwz %r11, 52(%r3) + lwz %r12, 56(%r3) + lwz %r13, 60(%r3) + lwz %r14, 64(%r3) + lwz %r15, 68(%r3) + lwz %r16, 72(%r3) + lwz %r17, 76(%r3) + lwz %r18, 80(%r3) + lwz %r19, 84(%r3) + lwz %r20, 88(%r3) + lwz %r21, 92(%r3) + lwz %r22, 96(%r3) + lwz %r23,100(%r3) + lwz %r24,104(%r3) + lwz %r25,108(%r3) + lwz %r26,112(%r3) + lwz %r27,116(%r3) + lwz %r28,120(%r3) + lwz %r29,124(%r3) + lwz %r30,128(%r3) + lwz %r31,132(%r3) + + // restore float registers + lfd %f0, 160(%r3) + lfd %f1, 168(%r3) + lfd %f2, 176(%r3) + lfd %f3, 184(%r3) + lfd %f4, 192(%r3) + lfd %f5, 200(%r3) + lfd %f6, 208(%r3) + lfd %f7, 216(%r3) + lfd %f8, 224(%r3) + lfd %f9, 232(%r3) + lfd %f10,240(%r3) + lfd %f11,248(%r3) + lfd %f12,256(%r3) + lfd %f13,264(%r3) + lfd %f14,272(%r3) + lfd %f15,280(%r3) + lfd %f16,288(%r3) + lfd %f17,296(%r3) + lfd %f18,304(%r3) + lfd %f19,312(%r3) + lfd %f20,320(%r3) + lfd %f21,328(%r3) + lfd %f22,336(%r3) + lfd %f23,344(%r3) + lfd %f24,352(%r3) + lfd %f25,360(%r3) + lfd %f26,368(%r3) + lfd %f27,376(%r3) + lfd %f28,384(%r3) + lfd %f29,392(%r3) + lfd %f30,400(%r3) + lfd %f31,408(%r3) + + // restore vector registers if any are in use + lwz %r5, 156(%r3) // test VRsave + cmpwi %r5, 0 + beq Lnovec + subi %r4, %r1, 16 + rlwinm %r4, %r4, 0, 0, 27 // mask low 4-bits + // r4 is now a 16-byte aligned pointer into the red zone + // the _vectorRegisters may not be 16-byte aligned so copy via red zone temp buffer + #define LOAD_VECTOR_UNALIGNEDl(_index) \ - andis. r0,r5,(1<<(15-_index)) @\ - beq Ldone ## _index @\ - lwz r0, 424+_index*16(r3) @\ - stw r0, 0(r4) @\ - lwz r0, 424+_index*16+4(r3) @\ - stw r0, 4(r4) @\ - lwz r0, 424+_index*16+8(r3) @\ - stw r0, 8(r4) @\ - lwz r0, 424+_index*16+12(r3)@\ - stw r0, 12(r4) @\ - lvx v ## _index,0,r4 @\ -Ldone ## _index: + andis. %r0, %r5, (1<<(15-_index)) SEPARATOR \ + beq Ldone ## _index SEPARATOR \ + lwz %r0, 424+_index*16(%r3) SEPARATOR \ + stw %r0, 0(%r4) SEPARATOR \ + lwz %r0, 424+_index*16+4(%r3) SEPARATOR \ + stw %r0, 4(%r4) SEPARATOR \ + lwz %r0, 424+_index*16+8(%r3) SEPARATOR \ + stw %r0, 8(%r4) SEPARATOR \ + lwz %r0, 424+_index*16+12(%r3) SEPARATOR \ + stw %r0, 12(%r4) SEPARATOR \ + lvx %v ## _index, 0, %r4 SEPARATOR \ + Ldone ## _index: #define LOAD_VECTOR_UNALIGNEDh(_index) \ - andi. r0,r5,(1<<(31-_index)) @\ - beq Ldone ## _index @\ - lwz r0, 424+_index*16(r3) @\ - stw r0, 0(r4) @\ - lwz r0, 424+_index*16+4(r3) @\ - stw r0, 4(r4) @\ - lwz r0, 424+_index*16+8(r3) @\ - stw r0, 8(r4) @\ - lwz r0, 424+_index*16+12(r3)@\ - stw r0, 12(r4) @\ - lvx v ## _index,0,r4 @\ - Ldone ## _index: + andi. %r0, %r5, (1<<(31-_index)) SEPARATOR \ + beq Ldone ## _index SEPARATOR \ + lwz %r0, 424+_index*16(%r3) SEPARATOR \ + stw %r0, 0(%r4) SEPARATOR \ + lwz %r0, 424+_index*16+4(%r3) SEPARATOR \ + stw %r0, 4(%r4) SEPARATOR \ + lwz %r0, 424+_index*16+8(%r3) SEPARATOR \ + stw %r0, 8(%r4) SEPARATOR \ + lwz %r0, 424+_index*16+12(%r3) SEPARATOR \ + stw %r0, 12(%r4) SEPARATOR \ + lvx %v ## _index, 0, %r4 SEPARATOR \ + Ldone ## _index: LOAD_VECTOR_UNALIGNEDl(0) @@ -544,17 +544,17 @@ Ldone ## _index: LOAD_VECTOR_UNALIGNEDh(31) Lnovec: - lwz r0, 136(r3) ; __cr - mtocrf 255,r0 - lwz r0, 148(r3) ; __ctr - mtctr r0 - lwz r0, 0(r3) ; __ssr0 - mtctr r0 - lwz r0, 8(r3) ; do r0 now - lwz r5,28(r3) ; do r5 now - lwz r4,24(r3) ; do r4 now - lwz r1,12(r3) ; do sp now - lwz r3,20(r3) ; do r3 last + lwz %r0, 136(%r3) // __cr + mtcr %r0 + lwz %r0, 148(%r3) // __ctr + mtctr %r0 + lwz %r0, 0(%r3) // __ssr0 + mtctr %r0 + lwz %r0, 8(%r3) // do r0 now + lwz %r5, 28(%r3) // do r5 now + lwz %r4, 24(%r3) // do r4 now + lwz %r1, 12(%r3) // do sp now + lwz %r3, 20(%r3) // do r3 last bctr #elif defined(__arm64__) || defined(__aarch64__) diff --git a/src/UnwindRegistersSave.S b/src/UnwindRegistersSave.S index 5edf97b..54505e5 100644 --- a/src/UnwindRegistersSave.S +++ b/src/UnwindRegistersSave.S @@ -556,144 +556,144 @@ DEFINE_LIBUNWIND_FUNCTION(__unw_getcontext) #elif defined(__ppc__) -; -; extern int __unw_getcontext(unw_context_t* thread_state) -; -; On entry: -; thread_state pointer is in r3 -; +// +// extern int unw_getcontext(unw_context_t* thread_state) +// +// On entry: +// thread_state pointer is in r3 +// DEFINE_LIBUNWIND_FUNCTION(__unw_getcontext) - stw r0, 8(r3) - mflr r0 - stw r0, 0(r3) ; store lr as ssr0 - stw r1, 12(r3) - stw r2, 16(r3) - stw r3, 20(r3) - stw r4, 24(r3) - stw r5, 28(r3) - stw r6, 32(r3) - stw r7, 36(r3) - stw r8, 40(r3) - stw r9, 44(r3) - stw r10, 48(r3) - stw r11, 52(r3) - stw r12, 56(r3) - stw r13, 60(r3) - stw r14, 64(r3) - stw r15, 68(r3) - stw r16, 72(r3) - stw r17, 76(r3) - stw r18, 80(r3) - stw r19, 84(r3) - stw r20, 88(r3) - stw r21, 92(r3) - stw r22, 96(r3) - stw r23,100(r3) - stw r24,104(r3) - stw r25,108(r3) - stw r26,112(r3) - stw r27,116(r3) - stw r28,120(r3) - stw r29,124(r3) - stw r30,128(r3) - stw r31,132(r3) - - ; save VRSave register - mfspr r0,256 - stw r0,156(r3) - ; save CR registers - mfcr r0 - stw r0,136(r3) - ; save CTR register - mfctr r0 - stw r0,148(r3) - - ; save float registers - stfd f0, 160(r3) - stfd f1, 168(r3) - stfd f2, 176(r3) - stfd f3, 184(r3) - stfd f4, 192(r3) - stfd f5, 200(r3) - stfd f6, 208(r3) - stfd f7, 216(r3) - stfd f8, 224(r3) - stfd f9, 232(r3) - stfd f10,240(r3) - stfd f11,248(r3) - stfd f12,256(r3) - stfd f13,264(r3) - stfd f14,272(r3) - stfd f15,280(r3) - stfd f16,288(r3) - stfd f17,296(r3) - stfd f18,304(r3) - stfd f19,312(r3) - stfd f20,320(r3) - stfd f21,328(r3) - stfd f22,336(r3) - stfd f23,344(r3) - stfd f24,352(r3) - stfd f25,360(r3) - stfd f26,368(r3) - stfd f27,376(r3) - stfd f28,384(r3) - stfd f29,392(r3) - stfd f30,400(r3) - stfd f31,408(r3) - - - ; save vector registers - - subi r4,r1,16 - rlwinm r4,r4,0,0,27 ; mask low 4-bits - ; r4 is now a 16-byte aligned pointer into the red zone + stw %r0, 8(%r3) + mflr %r0 + stw %r0, 0(%r3) // store lr as ssr0 + stw %r1, 12(%r3) + stw %r2, 16(%r3) + stw %r3, 20(%r3) + stw %r4, 24(%r3) + stw %r5, 28(%r3) + stw %r6, 32(%r3) + stw %r7, 36(%r3) + stw %r8, 40(%r3) + stw %r9, 44(%r3) + stw %r10, 48(%r3) + stw %r11, 52(%r3) + stw %r12, 56(%r3) + stw %r13, 60(%r3) + stw %r14, 64(%r3) + stw %r15, 68(%r3) + stw %r16, 72(%r3) + stw %r17, 76(%r3) + stw %r18, 80(%r3) + stw %r19, 84(%r3) + stw %r20, 88(%r3) + stw %r21, 92(%r3) + stw %r22, 96(%r3) + stw %r23,100(%r3) + stw %r24,104(%r3) + stw %r25,108(%r3) + stw %r26,112(%r3) + stw %r27,116(%r3) + stw %r28,120(%r3) + stw %r29,124(%r3) + stw %r30,128(%r3) + stw %r31,132(%r3) + + // save VRSave register + mfspr %r0, 256 + stw %r0, 156(%r3) + // save CR registers + mfcr %r0 + stw %r0, 136(%r3) + // save CTR register + mfctr %r0 + stw %r0, 148(%r3) + + // save float registers + stfd %f0, 160(%r3) + stfd %f1, 168(%r3) + stfd %f2, 176(%r3) + stfd %f3, 184(%r3) + stfd %f4, 192(%r3) + stfd %f5, 200(%r3) + stfd %f6, 208(%r3) + stfd %f7, 216(%r3) + stfd %f8, 224(%r3) + stfd %f9, 232(%r3) + stfd %f10,240(%r3) + stfd %f11,248(%r3) + stfd %f12,256(%r3) + stfd %f13,264(%r3) + stfd %f14,272(%r3) + stfd %f15,280(%r3) + stfd %f16,288(%r3) + stfd %f17,296(%r3) + stfd %f18,304(%r3) + stfd %f19,312(%r3) + stfd %f20,320(%r3) + stfd %f21,328(%r3) + stfd %f22,336(%r3) + stfd %f23,344(%r3) + stfd %f24,352(%r3) + stfd %f25,360(%r3) + stfd %f26,368(%r3) + stfd %f27,376(%r3) + stfd %f28,384(%r3) + stfd %f29,392(%r3) + stfd %f30,400(%r3) + stfd %f31,408(%r3) + + + // save vector registers + + subi %r4, %r1, 16 + rlwinm %r4, %r4, 0, 0, 27 // mask low 4-bits + // r4 is now a 16-byte aligned pointer into the red zone #define SAVE_VECTOR_UNALIGNED(_vec, _offset) \ - stvx _vec,0,r4 @\ - lwz r5, 0(r4) @\ - stw r5, _offset(r3) @\ - lwz r5, 4(r4) @\ - stw r5, _offset+4(r3) @\ - lwz r5, 8(r4) @\ - stw r5, _offset+8(r3) @\ - lwz r5, 12(r4) @\ - stw r5, _offset+12(r3) - - SAVE_VECTOR_UNALIGNED( v0, 424+0x000) - SAVE_VECTOR_UNALIGNED( v1, 424+0x010) - SAVE_VECTOR_UNALIGNED( v2, 424+0x020) - SAVE_VECTOR_UNALIGNED( v3, 424+0x030) - SAVE_VECTOR_UNALIGNED( v4, 424+0x040) - SAVE_VECTOR_UNALIGNED( v5, 424+0x050) - SAVE_VECTOR_UNALIGNED( v6, 424+0x060) - SAVE_VECTOR_UNALIGNED( v7, 424+0x070) - SAVE_VECTOR_UNALIGNED( v8, 424+0x080) - SAVE_VECTOR_UNALIGNED( v9, 424+0x090) - SAVE_VECTOR_UNALIGNED(v10, 424+0x0A0) - SAVE_VECTOR_UNALIGNED(v11, 424+0x0B0) - SAVE_VECTOR_UNALIGNED(v12, 424+0x0C0) - SAVE_VECTOR_UNALIGNED(v13, 424+0x0D0) - SAVE_VECTOR_UNALIGNED(v14, 424+0x0E0) - SAVE_VECTOR_UNALIGNED(v15, 424+0x0F0) - SAVE_VECTOR_UNALIGNED(v16, 424+0x100) - SAVE_VECTOR_UNALIGNED(v17, 424+0x110) - SAVE_VECTOR_UNALIGNED(v18, 424+0x120) - SAVE_VECTOR_UNALIGNED(v19, 424+0x130) - SAVE_VECTOR_UNALIGNED(v20, 424+0x140) - SAVE_VECTOR_UNALIGNED(v21, 424+0x150) - SAVE_VECTOR_UNALIGNED(v22, 424+0x160) - SAVE_VECTOR_UNALIGNED(v23, 424+0x170) - SAVE_VECTOR_UNALIGNED(v24, 424+0x180) - SAVE_VECTOR_UNALIGNED(v25, 424+0x190) - SAVE_VECTOR_UNALIGNED(v26, 424+0x1A0) - SAVE_VECTOR_UNALIGNED(v27, 424+0x1B0) - SAVE_VECTOR_UNALIGNED(v28, 424+0x1C0) - SAVE_VECTOR_UNALIGNED(v29, 424+0x1D0) - SAVE_VECTOR_UNALIGNED(v30, 424+0x1E0) - SAVE_VECTOR_UNALIGNED(v31, 424+0x1F0) - - li r3, 0 ; return UNW_ESUCCESS + stvx _vec, 0, %r4 SEPARATOR \ + lwz %r5, 0(%r4) SEPARATOR \ + stw %r5, _offset(%r3) SEPARATOR \ + lwz %r5, 4(%r4) SEPARATOR \ + stw %r5, _offset+4(%r3) SEPARATOR \ + lwz %r5, 8(%r4) SEPARATOR \ + stw %r5, _offset+8(%r3) SEPARATOR \ + lwz %r5, 12(%r4) SEPARATOR \ + stw %r5, _offset+12(%r3) + + SAVE_VECTOR_UNALIGNED( %v0, 424+0x000) + SAVE_VECTOR_UNALIGNED( %v1, 424+0x010) + SAVE_VECTOR_UNALIGNED( %v2, 424+0x020) + SAVE_VECTOR_UNALIGNED( %v3, 424+0x030) + SAVE_VECTOR_UNALIGNED( %v4, 424+0x040) + SAVE_VECTOR_UNALIGNED( %v5, 424+0x050) + SAVE_VECTOR_UNALIGNED( %v6, 424+0x060) + SAVE_VECTOR_UNALIGNED( %v7, 424+0x070) + SAVE_VECTOR_UNALIGNED( %v8, 424+0x080) + SAVE_VECTOR_UNALIGNED( %v9, 424+0x090) + SAVE_VECTOR_UNALIGNED(%v10, 424+0x0A0) + SAVE_VECTOR_UNALIGNED(%v11, 424+0x0B0) + SAVE_VECTOR_UNALIGNED(%v12, 424+0x0C0) + SAVE_VECTOR_UNALIGNED(%v13, 424+0x0D0) + SAVE_VECTOR_UNALIGNED(%v14, 424+0x0E0) + SAVE_VECTOR_UNALIGNED(%v15, 424+0x0F0) + SAVE_VECTOR_UNALIGNED(%v16, 424+0x100) + SAVE_VECTOR_UNALIGNED(%v17, 424+0x110) + SAVE_VECTOR_UNALIGNED(%v18, 424+0x120) + SAVE_VECTOR_UNALIGNED(%v19, 424+0x130) + SAVE_VECTOR_UNALIGNED(%v20, 424+0x140) + SAVE_VECTOR_UNALIGNED(%v21, 424+0x150) + SAVE_VECTOR_UNALIGNED(%v22, 424+0x160) + SAVE_VECTOR_UNALIGNED(%v23, 424+0x170) + SAVE_VECTOR_UNALIGNED(%v24, 424+0x180) + SAVE_VECTOR_UNALIGNED(%v25, 424+0x190) + SAVE_VECTOR_UNALIGNED(%v26, 424+0x1A0) + SAVE_VECTOR_UNALIGNED(%v27, 424+0x1B0) + SAVE_VECTOR_UNALIGNED(%v28, 424+0x1C0) + SAVE_VECTOR_UNALIGNED(%v29, 424+0x1D0) + SAVE_VECTOR_UNALIGNED(%v30, 424+0x1E0) + SAVE_VECTOR_UNALIGNED(%v31, 424+0x1F0) + + li %r3, 0 // return UNW_ESUCCESS blr diff --git a/src/assembly.h b/src/assembly.h index 7d22aeb..7132b6c 100644 --- a/src/assembly.h +++ b/src/assembly.h @@ -28,8 +28,6 @@ #ifdef _ARCH_PWR8 #define PPC64_HAS_VMX #endif -#elif defined(__POWERPC__) || defined(__powerpc__) || defined(__ppc__) -#define SEPARATOR @ #elif defined(__arm64__) #define SEPARATOR %% #else |