diff options
Diffstat (limited to 'sysdeps/powerpc/powerpc64/dl-trampoline.S')
| -rw-r--r-- | sysdeps/powerpc/powerpc64/dl-trampoline.S | 48 |
1 files changed, 25 insertions, 23 deletions
diff --git a/sysdeps/powerpc/powerpc64/dl-trampoline.S b/sysdeps/powerpc/powerpc64/dl-trampoline.S index e31311cf18..18c8a3aa01 100644 --- a/sysdeps/powerpc/powerpc64/dl-trampoline.S +++ b/sysdeps/powerpc/powerpc64/dl-trampoline.S @@ -26,13 +26,13 @@ parm1 (r3) and the index (r0) need to be converted to an offset (index * 24) in parm2 (r4). */ -#define FRAME_SIZE 176 +#define FRAME_SIZE (FRAME_MIN_SIZE+64) /* We need to save the registers used to pass parameters, ie. r3 thru r10; Use local var space rather than the parameter save area, because gcc as of 2010/05 doesn't allocate a proper stack frame for a function that makes no calls except for __tls_get_addr and we might be here resolving the __tls_get_addr call. */ -#define INT_PARMS 112 +#define INT_PARMS FRAME_MIN_SIZE EALIGN(_dl_runtime_resolve, 4, 0) stdu r1,-FRAME_SIZE(r1) cfi_adjust_cfa_offset (FRAME_SIZE) @@ -48,25 +48,25 @@ EALIGN(_dl_runtime_resolve, 4, 0) mflr r0 std r8,INT_PARMS+40(r1) /* Store the LR in the LR Save area. */ - std r0,FRAME_SIZE+16(r1) - cfi_offset (lr, 16) + 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+8(r1) + std r0,FRAME_SIZE+FRAME_CR_SAVE(r1) bl JUMPTARGET(_dl_fixup) #ifndef SHARED nop #endif /* Put the registers back. */ - ld r0,FRAME_SIZE+16(r1) + ld r0,FRAME_SIZE+FRAME_LR_SAVE(r1) ld r10,INT_PARMS+56(r1) ld r9,INT_PARMS+48(r1) ld r8,INT_PARMS+40(r1) ld r7,INT_PARMS+32(r1) mtlr r0 - ld r0,FRAME_SIZE+8(r1) + 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) @@ -76,7 +76,7 @@ EALIGN(_dl_runtime_resolve, 4, 0) ld r3,INT_PARMS+0(r1) #if _CALL_ELF == 2 /* Restore the caller's TOC in case we jump to a local entry point. */ - ld r2,FRAME_SIZE+40(r1) + ld r2,FRAME_SIZE+FRAME_TOC_SAVE(r1) #endif /* Unwind the stack frame, and jump. */ addi r1,r1,FRAME_SIZE @@ -86,6 +86,7 @@ END(_dl_runtime_resolve) #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 @@ -147,10 +148,11 @@ END(_dl_runtime_resolve) +64 parm3 +56 parm2 +48 parm1 - * Parameter save area, Allocated by the call, at least 8 double words - +40 TOC save area - +32 Reserved for linker - +24 Reserved for compiler + * Parameter save area + * (v1 ABI: Allocated by the call, at least 8 double words) + +40 v1 ABI: TOC save area + +32 v1 ABI: Reserved for linker + +24 v1 ABI: Reserved for compiler / v2 ABI: TOC save area +16 LR save area +8 CR save area r1+0 stack back chain @@ -206,15 +208,15 @@ EALIGN(_dl_profile_resolve, 4, 0) /* Store the LR in the LR Save area of the previous frame. */ /* XXX Do we have to do this? */ la r8,FRAME_SIZE(r1) - std r5,FRAME_SIZE+16(r1) - cfi_offset (lr, 16) + 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+8(r1) + std r0,FRAME_SIZE+FRAME_CR_SAVE(r1) ld r12,.LC__dl_hwcap@toc(r2) #ifdef SHARED /* Load _rtld_local_ro._dl_hwcap. */ @@ -311,13 +313,13 @@ L(saveFP): lvx v12,r11,r10 lvx v13,r11,r9 L(restoreFXR): - ld r0,FRAME_SIZE+16(r1) + ld r0,FRAME_SIZE+FRAME_LR_SAVE(r1) ld r10,INT_PARMS+56(r1) ld r9,INT_PARMS+48(r1) ld r8,INT_PARMS+40(r1) ld r7,INT_PARMS+32(r1) mtlr r0 - ld r0,FRAME_SIZE+8(r1) + 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) @@ -327,7 +329,7 @@ L(restoreFXR): ld r3,INT_PARMS+0(r1) #if _CALL_ELF == 2 /* Restore the caller's TOC in case we jump to a local entry point. */ - ld r2,FRAME_SIZE+40(r1) + ld r2,FRAME_SIZE+FRAME_TOC_SAVE(r1) #endif /* Load the floating point registers. */ lfd fp1,FPR_PARMS+0(r1) @@ -375,19 +377,19 @@ L(do_pltexit): lvx v12,r11,r10 lvx v13,r11,r9 L(restoreFXR2): - ld r0,FRAME_SIZE+16(r1) + ld r0,FRAME_SIZE+FRAME_LR_SAVE(r1) ld r10,INT_PARMS+56(r1) ld r9,INT_PARMS+48(r1) ld r8,INT_PARMS+40(r1) ld r7,INT_PARMS+32(r1) mtlr r0 - ld r0,FRAME_SIZE+8(r1) + 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 r2,40(r1) + std r2,FRAME_TOC_SAVE(r1) PPC64_LOAD_FUNCPTR r3 ld r3,INT_PARMS+0(r1) /* Load the floating point registers. */ @@ -406,7 +408,7 @@ L(restoreFXR2): lfd fp13,FPR_PARMS+96(r1) /* Call the target function. */ bctrl - ld r2,40(r1) + ld r2,FRAME_TOC_SAVE(r1) lwz r12,VR_VRSAVE(r1) /* But return here and store the return values. */ std r3,INT_RTN(r1) @@ -441,7 +443,7 @@ L(callpltexit): beq L(pltexitreturn) lvx v2,0,r10 L(pltexitreturn): - ld r0,FRAME_SIZE+16(r1) + ld r0,FRAME_SIZE+FRAME_LR_SAVE(r1) ld r31,584(r1) ld r30,576(r1) mtlr r0 |