diff options
Diffstat (limited to 'sysdeps/powerpc/powerpc64/dl-trampoline.S')
| -rw-r--r-- | sysdeps/powerpc/powerpc64/dl-trampoline.S | 131 |
1 files changed, 89 insertions, 42 deletions
diff --git a/sysdeps/powerpc/powerpc64/dl-trampoline.S b/sysdeps/powerpc/powerpc64/dl-trampoline.S index 18c8a3aa01..69ce523e90 100644 --- a/sysdeps/powerpc/powerpc64/dl-trampoline.S +++ b/sysdeps/powerpc/powerpc64/dl-trampoline.S @@ -50,11 +50,8 @@ EALIGN(_dl_runtime_resolve, 4, 0) /* Store the LR in the LR Save area. */ std r0,FRAME_SIZE+FRAME_LR_SAVE(r1) cfi_offset (lr, FRAME_LR_SAVE) - mfcr r0 std r9,INT_PARMS+48(r1) std r10,INT_PARMS+56(r1) -/* I'm almost certain we don't have to save cr... be safe. */ - std r0,FRAME_SIZE+FRAME_CR_SAVE(r1) bl JUMPTARGET(_dl_fixup) #ifndef SHARED nop @@ -66,11 +63,9 @@ EALIGN(_dl_runtime_resolve, 4, 0) ld r8,INT_PARMS+40(r1) ld r7,INT_PARMS+32(r1) mtlr r0 - ld r0,FRAME_SIZE+FRAME_CR_SAVE(r1) ld r6,INT_PARMS+24(r1) ld r5,INT_PARMS+16(r1) ld r4,INT_PARMS+8(r1) - mtcrf 0xFF,r0 /* Prepare for calling the function returned by fixup. */ PPC64_LOAD_FUNCPTR r3 ld r3,INT_PARMS+0(r1) @@ -85,18 +80,30 @@ END(_dl_runtime_resolve) #undef FRAME_SIZE #undef INT_PARMS - /* Stack layout: - (Note: some of these are not required for the ELFv2 ABI.) - +592 previous backchain - +584 spill_r31 - +576 spill_r30 - +560 v1 - +552 fp4 - +544 fp3 - +536 fp2 - +528 fp1 - +520 r4 - +512 r3 + /* Stack layout: ELFv2 ABI. + +752 previous backchain + +744 spill_r31 + +736 spill_r30 + +720 v8 + +704 v7 + +688 v6 + +672 v5 + +656 v4 + +640 v3 + +624 v2 + +608 v1 + +600 fp10 + ELFv1 ABI +592 fp9 + +592 previous backchain +584 fp8 + +584 spill_r31 +576 fp7 + +576 spill_r30 +568 fp6 + +560 v1 +560 fp5 + +552 fp4 +552 fp4 + +544 fp3 +544 fp3 + +536 fp2 +536 fp2 + +528 fp1 +528 fp1 + +520 r4 +520 r4 + +512 r3 +512 r3 return values +504 free +496 stackframe @@ -157,10 +164,15 @@ END(_dl_runtime_resolve) +8 CR save area r1+0 stack back chain */ -#define FRAME_SIZE 592 +#if _CALL_ELF == 2 +# define FRAME_SIZE 752 +# define VR_RTN 608 +#else +# define FRAME_SIZE 592 +# define VR_RTN 560 +#endif #define INT_RTN 512 #define FPR_RTN 528 -#define VR_RTN 560 #define STACK_FRAME 496 #define CALLING_LR 488 #define CALLING_SP 480 @@ -205,18 +217,14 @@ EALIGN(_dl_profile_resolve, 4, 0) mflr r5 std r7,INT_PARMS+32(r1) std r8,INT_PARMS+40(r1) -/* Store the LR in the LR Save area of the previous frame. */ -/* XXX Do we have to do this? */ +/* Store the LR in the LR Save area. */ la r8,FRAME_SIZE(r1) std r5,FRAME_SIZE+FRAME_LR_SAVE(r1) cfi_offset (lr, FRAME_LR_SAVE) std r5,CALLING_LR(r1) - mfcr r0 std r9,INT_PARMS+48(r1) std r10,INT_PARMS+56(r1) std r8,CALLING_SP(r1) -/* I'm almost certain we don't have to save cr... be safe. */ - std r0,FRAME_SIZE+FRAME_CR_SAVE(r1) ld r12,.LC__dl_hwcap@toc(r2) #ifdef SHARED /* Load _rtld_local_ro._dl_hwcap. */ @@ -319,11 +327,9 @@ L(restoreFXR): ld r8,INT_PARMS+40(r1) ld r7,INT_PARMS+32(r1) mtlr r0 - ld r0,FRAME_SIZE+FRAME_CR_SAVE(r1) ld r6,INT_PARMS+24(r1) ld r5,INT_PARMS+16(r1) ld r4,INT_PARMS+8(r1) - mtcrf 0xFF,r0 /* Prepare for calling the function returned by fixup. */ PPC64_LOAD_FUNCPTR r3 ld r3,INT_PARMS+0(r1) @@ -346,10 +352,11 @@ L(restoreFXR): lfd fp12,FPR_PARMS+88(r1) lfd fp13,FPR_PARMS+96(r1) /* Unwind the stack frame, and jump. */ - ld r31,584(r1) - ld r30,576(r1) + ld r31,FRAME_SIZE-8(r1) + ld r30,FRAME_SIZE-16(r1) addi r1,r1,FRAME_SIZE bctr + L(do_pltexit): la r10,(VR_PARMS+0)(r1) la r9,(VR_PARMS+16)(r1) @@ -383,11 +390,9 @@ L(restoreFXR2): ld r8,INT_PARMS+40(r1) ld r7,INT_PARMS+32(r1) mtlr r0 - ld r0,FRAME_SIZE+FRAME_CR_SAVE(r1) ld r6,INT_PARMS+24(r1) ld r5,INT_PARMS+16(r1) ld r4,INT_PARMS+8(r1) - mtcrf 0xFF,r0 /* Prepare for calling the function returned by fixup. */ std r2,FRAME_TOC_SAVE(r1) PPC64_LOAD_FUNCPTR r3 @@ -413,16 +418,37 @@ L(restoreFXR2): /* But return here and store the return values. */ std r3,INT_RTN(r1) std r4,INT_RTN+8(r1) - stfd fp1,FPR_PARMS+0(r1) - stfd fp2,FPR_PARMS+8(r1) + stfd fp1,FPR_RTN+0(r1) + stfd fp2,FPR_RTN+8(r1) cmpdi cr0,r12,0 la r10,VR_RTN(r1) - stfd fp3,FPR_PARMS+16(r1) - stfd fp4,FPR_PARMS+24(r1) + stfd fp3,FPR_RTN+16(r1) + stfd fp4,FPR_RTN+24(r1) +#if _CALL_ELF == 2 + la r12,VR_RTN+16(r1) + stfd fp5,FPR_RTN+32(r1) + stfd fp6,FPR_RTN+40(r1) + li r5,32 + li r6,64 + stfd fp7,FPR_RTN+48(r1) + stfd fp8,FPR_RTN+56(r1) + stfd fp9,FPR_RTN+64(r1) + stfd fp10,FPR_RTN+72(r1) +#endif mr r3,r31 mr r4,r30 beq L(callpltexit) stvx v2,0,r10 +#if _CALL_ELF == 2 + stvx v3,0,r12 + stvx v4,r5,r10 + stvx v5,r5,r12 + addi r5,r5,64 + stvx v6,r6,r10 + stvx v7,r6,r12 + stvx v8,r5,r10 + stvx v9,r5,r12 +#endif L(callpltexit): addi r5,r1,INT_PARMS addi r6,r1,INT_RTN @@ -434,18 +460,39 @@ L(callpltexit): lwz r12,VR_VRSAVE(r1) ld r3,INT_RTN(r1) ld r4,INT_RTN+8(r1) - lfd fp1,FPR_PARMS+0(r1) - lfd fp2,FPR_PARMS+8(r1) + lfd fp1,FPR_RTN+0(r1) + lfd fp2,FPR_RTN+8(r1) cmpdi cr0,r12,0 - la r10,VR_RTN(r1) - lfd fp3,FPR_PARMS+16(r1) - lfd fp4,FPR_PARMS+24(r1) + la r11,VR_RTN(r1) + lfd fp3,FPR_RTN+16(r1) + lfd fp4,FPR_RTN+24(r1) +#if _CALL_ELF == 2 + la r12,VR_RTN+16(r1) + lfd fp5,FPR_RTN+32(r1) + lfd fp6,FPR_RTN+40(r1) + li r30,32 + li r31,64 + lfd fp7,FPR_RTN+48(r1) + lfd fp8,FPR_RTN+56(r1) + lfd fp9,FPR_RTN+64(r1) + lfd fp10,FPR_RTN+72(r1) +#endif beq L(pltexitreturn) - lvx v2,0,r10 + lvx v2,0,r11 +#if _CALL_ELF == 2 + lvx v3,0,r12 + lvx v4,r30,r11 + lvx v5,r30,r12 + addi r30,r30,64 + lvx v6,r31,r11 + lvx v7,r31,r12 + lvx v8,r30,r11 + lvx v9,r30,r12 +#endif L(pltexitreturn): ld r0,FRAME_SIZE+FRAME_LR_SAVE(r1) - ld r31,584(r1) - ld r30,576(r1) + ld r31,FRAME_SIZE-8(r1) + ld r30,FRAME_SIZE-16(r1) mtlr r0 ld r1,0(r1) blr |