diff options
Diffstat (limited to 'sysdeps/powerpc/powerpc64/dl-trampoline.S')
| -rw-r--r-- | sysdeps/powerpc/powerpc64/dl-trampoline.S | 76 |
1 files changed, 45 insertions, 31 deletions
diff --git a/sysdeps/powerpc/powerpc64/dl-trampoline.S b/sysdeps/powerpc/powerpc64/dl-trampoline.S index 9ca394dda2..abe746b6ad 100644 --- a/sysdeps/powerpc/powerpc64/dl-trampoline.S +++ b/sysdeps/powerpc/powerpc64/dl-trampoline.S @@ -27,42 +27,50 @@ parm1 (r3) and the index (r0) need to be converted to an offset (index * 24) in parm2 (r4). */ -EALIGN(_dl_runtime_resolve, 4, 0) +#define FRAME_SIZE 176 /* We need to save the registers used to pass parameters, ie. r3 thru - r10; the registers are saved in a stack frame. */ - stdu r1,-128(r1) - cfi_adjust_cfa_offset (128) - std r3,48(r1) + 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 +EALIGN(_dl_runtime_resolve, 4, 0) + stdu r1,-FRAME_SIZE(r1) + cfi_adjust_cfa_offset (FRAME_SIZE) + std r3,INT_PARMS+0(r1) mr r3,r11 - std r4,56(r1) + std r4,INT_PARMS+8(r1) sldi r4,r0,1 - std r5,64(r1) + std r5,INT_PARMS+16(r1) add r4,r4,r0 - std r6,72(r1) + std r6,INT_PARMS+24(r1) sldi r4,r4,3 - std r7,80(r1) + std r7,INT_PARMS+32(r1) mflr r0 - std r8,88(r1) -/* Store the LR in the LR Save area of the previous frame. */ - std r0,128+16(r1) + std r8,INT_PARMS+40(r1) +/* Store the LR in the LR Save area. */ + std r0,FRAME_SIZE+16(r1) cfi_offset (lr, 16) mfcr r0 - std r9,96(r1) - std r10,104(r1) + 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 r0,8(r1) + std r0,FRAME_SIZE+8(r1) bl JUMPTARGET(_dl_fixup) +#ifndef SHARED + nop +#endif /* Put the registers back. */ - ld r0,128+16(r1) - ld r10,104(r1) - ld r9,96(r1) - ld r8,88(r1) - ld r7,80(r1) + ld r0,FRAME_SIZE+16(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 r0,8(r1) - ld r6,72(r1) - ld r5,64(r1) - ld r4,56(r1) + ld r0,FRAME_SIZE+8(r1) + ld r6,INT_PARMS+24(r1) + ld r5,INT_PARMS+16(r1) + ld r4,INT_PARMS+8(r1) mtcrf 0xFF,r0 /* Load the target address, toc and static chain reg from the function descriptor returned by fixup. */ @@ -70,11 +78,13 @@ EALIGN(_dl_runtime_resolve, 4, 0) ld r2,8(r3) mtctr r0 ld r11,16(r3) - ld r3,48(r1) + ld r3,INT_PARMS+0(r1) /* Unwind the stack frame, and jump. */ - addi r1,r1,128 + addi r1,r1,FRAME_SIZE bctr END(_dl_runtime_resolve) +#undef FRAME_SIZE +#undef INT_PARMS /* Stack layout: +592 previous backchain @@ -176,13 +186,13 @@ EALIGN(_dl_profile_resolve, 4, 0) /* Spill r30, r31 to preserve the link_map* and reloc_addr, in case we need to call _dl_call_pltexit. */ std r31,-8(r1) - cfi_offset(r31,-8) std r30,-16(r1) - cfi_offset(r30,-16) /* We need to save the registers used to pass parameters, ie. r3 thru r10; the registers are saved in a stack frame. */ stdu r1,-FRAME_SIZE(r1) cfi_adjust_cfa_offset (FRAME_SIZE) + cfi_offset(r31,-8) + cfi_offset(r30,-16) std r3,INT_PARMS+0(r1) mr r3,r11 std r4,INT_PARMS+8(r1) @@ -205,7 +215,7 @@ EALIGN(_dl_profile_resolve, 4, 0) 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 r0,8(r1) + std r0,FRAME_SIZE+8(r1) ld r12,.LC__dl_hwcap@toc(r2) #ifdef SHARED /* Load _rtld-global._dl_hwcap. */ @@ -265,7 +275,9 @@ L(saveFP): mr r30,r4 std r0,0(r7) bl JUMPTARGET(_dl_profile_fixup) +#ifndef SHARED nop +#endif /* Test *framesizep > 0 to see if need to do pltexit processing. */ ld r0,STACK_FRAME(r1) /* Put the registers back. */ @@ -306,7 +318,7 @@ L(restoreFXR): ld r8,INT_PARMS+40(r1) ld r7,INT_PARMS+32(r1) mtlr r0 - ld r0,8(r1) + ld r0,FRAME_SIZE+8(r1) ld r6,INT_PARMS+24(r1) ld r5,INT_PARMS+16(r1) ld r4,INT_PARMS+8(r1) @@ -370,7 +382,7 @@ L(restoreFXR2): ld r8,INT_PARMS+40(r1) ld r7,INT_PARMS+32(r1) mtlr r0 - ld r0,8(r1) + ld r0,FRAME_SIZE+8(r1) ld r6,INT_PARMS+24(r1) ld r5,INT_PARMS+16(r1) ld r4,INT_PARMS+8(r1) @@ -418,7 +430,9 @@ L(callpltexit): addi r5,r1,INT_PARMS addi r6,r1,INT_RTN bl JUMPTARGET(_dl_call_pltexit) +#ifndef SHARED nop +#endif /* Restore the return values from target function. */ lwz r12,VR_VRSAVE(r1) ld r3,INT_RTN(r1) |