diff options
Diffstat (limited to 'sysdeps')
| -rw-r--r-- | sysdeps/powerpc/powerpc32/dl-trampoline.S | 185 | ||||
| -rw-r--r-- | sysdeps/powerpc/powerpc64/dl-trampoline.S | 68 |
2 files changed, 157 insertions, 96 deletions
diff --git a/sysdeps/powerpc/powerpc32/dl-trampoline.S b/sysdeps/powerpc/powerpc32/dl-trampoline.S index 5585192ea8..ea5ce7b45a 100644 --- a/sysdeps/powerpc/powerpc32/dl-trampoline.S +++ b/sysdeps/powerpc/powerpc32/dl-trampoline.S @@ -26,43 +26,43 @@ _dl_runtime_resolve: # We need to save the registers used to pass parameters, and register 0, # which is used by _mcount; the registers are saved in a stack frame. - stwu 1,-64(1) - stw 0,12(1) - stw 3,16(1) - stw 4,20(1) + stwu r1,-64(r1) + stw r0,12(r1) + stw r3,16(r1) + stw r4,20(r1) # The code that calls this has put parameters for `fixup' in r12 and r11. - mr 3,12 - stw 5,24(1) - mr 4,11 - stw 6,28(1) - mflr 0 + mr r3,r12 + stw r5,24(r1) + mr r4,r11 + stw r6,28(r1) + mflr r0 # We also need to save some of the condition register fields - stw 7,32(1) - stw 0,48(1) - stw 8,36(1) - mfcr 0 - stw 9,40(1) - stw 10,44(1) - stw 0,8(1) + stw r7,32(r1) + stw r0,48(r1) + stw r8,36(r1) + mfcr r0 + stw r9,40(r1) + stw r10,44(r1) + stw r0,8(r1) bl _dl_fixup@local # 'fixup' returns the address we want to branch to. - mtctr 3 + mtctr r3 # Put the registers back... - lwz 0,48(1) - lwz 10,44(1) - lwz 9,40(1) - mtlr 0 - lwz 8,36(1) - lwz 0,8(1) - lwz 7,32(1) - lwz 6,28(1) - mtcrf 0xFF,0 - lwz 5,24(1) - lwz 4,20(1) - lwz 3,16(1) - lwz 0,12(1) + lwz r0,48(r1) + lwz r10,44(r1) + lwz r9,40(r1) + mtlr r0 + lwz r8,36(r1) + lwz r0,8(r1) + lwz r7,32(r1) + lwz r6,28(r1) + mtcrf 0xFF,r0 + lwz r5,24(r1) + lwz r4,20(r1) + lwz r3,16(r1) + lwz r0,12(r1) # ...unwind the stack frame, and jump to the PLT entry we updated. - addi 1,1,64 + addi r1,r1,64 bctr .size _dl_runtime_resolve,.-_dl_runtime_resolve @@ -72,42 +72,103 @@ _dl_runtime_resolve: _dl_prof_resolve: # We need to save the registers used to pass parameters, and register 0, # which is used by _mcount; the registers are saved in a stack frame. - stwu 1,-64(1) - stw 0,12(1) - stw 3,16(1) - stw 4,20(1) + stwu r1,-320(r1) + /* Stack layout: + + +312 stackframe + +308 lr + +304 r1 + +288 v12 + +272 v11 + +256 v10 + +240 v9 + +224 v8 + +208 v7 + +192 v6 + +176 v5 + +160 v4 + +144 v3 + +128 v2 + +112 v1 + +104 fp8 + +96 fp7 + +88 fp6 + +80 fp5 + +72 fp4 + +64 fp3 + +56 fp2 + +48 fp1 + +44 r10 + +40 r9 + +36 r8 + +32 r7 + +28 r6 + +24 r5 + +20 r4 + +16 r3 + +12 r0 + +8 cr + r1 link + */ + stw r0,12(r1) + stw r3,16(r1) + stw r4,20(r1) # The code that calls this has put parameters for `fixup' in r12 and r11. - mr 3,12 - stw 5,24(1) - mr 4,11 - stw 6,28(1) - mflr 5 + mr r3,r12 + stw r5,24(r1) + mr r4,r11 + stw r6,28(r1) + mflr r5 # We also need to save some of the condition register fields. - stw 7,32(1) - stw 5,48(1) - stw 8,36(1) - mfcr 0 - stw 9,40(1) - stw 10,44(1) - stw 0,8(1) + stw r7,32(r1) + stw r5,308(r1) + stw r8,36(r1) + mfcr r0 + stw r9,40(r1) + stw r10,44(r1) + stw r0,8(r1) + # Save the floating point registers + stfd fp1,48(r1) + stfd fp2,56(r1) + stfd fp3,64(r1) + stfd fp4,72(r1) + stfd fp5,80(r1) + stfd fp6,88(r1) + stfd fp7,96(r1) + stfd fp8,104(r1) + # XXX TODO: store vmx registers + # Load the extra parameters. + addi r6,r1,16 + addi r7,r1,312 + li r0,-1 + stw r0,0(r7) bl _dl_profile_fixup@local # 'fixup' returns the address we want to branch to. - mtctr 3 + mtctr r3 # Put the registers back... - lwz 0,48(1) - lwz 10,44(1) - lwz 9,40(1) - mtlr 0 - lwz 8,36(1) - lwz 0,8(1) - lwz 7,32(1) - lwz 6,28(1) - mtcrf 0xFF,0 - lwz 5,24(1) - lwz 4,20(1) - lwz 3,16(1) - lwz 0,12(1) + lwz r0,308(r1) + lwz r10,44(r1) + lwz r9,40(r1) + mtlr r0 + lwz r8,36(r1) + lwz r0,8(r1) + lwz r7,32(r1) + lwz r6,28(r1) + mtcrf 0xFF,r0 + lwz r5,24(r1) + lwz r4,20(r1) + lwz r3,16(r1) + lwz r0,12(r1) + # Load the floating point registers. + lfd fp1,48(r1) + lfd fp2,56(r1) + lfd fp3,64(r1) + lfd fp4,72(r1) + lfd fp5,80(r1) + lfd fp6,88(r1) + lfd fp7,96(r1) + lfd fp8,104(r1) # ...unwind the stack frame, and jump to the PLT entry we updated. - addi 1,1,64 + addi r1,r1,320 bctr .size _dl_prof_resolve,.-_dl_prof_resolve diff --git a/sysdeps/powerpc/powerpc64/dl-trampoline.S b/sysdeps/powerpc/powerpc64/dl-trampoline.S index 71d16f2dba..946ad8a3e3 100644 --- a/sysdeps/powerpc/powerpc64/dl-trampoline.S +++ b/sysdeps/powerpc/powerpc64/dl-trampoline.S @@ -24,47 +24,47 @@ EALIGN(_dl_runtime_resolve, 4, 0) /* We need to save the registers used to pass parameters, ie. r3 thru r10; the registers are saved in a stack frame. */ - stdu 1,-128(1) - std 3,48(1) - mr 3,11 - std 4,56(1) - sldi 4,0,1 - std 5,64(1) - add 4,4,0 - std 6,72(1) - sldi 4,4,3 - std 7,80(1) - mflr 0 - std 8,88(1) + stdu r1,-128(r1) + std r3,48(r1) + mr r3,r11 + std r4,56(r1) + sldi r4,r0,1 + std r5,64(r1) + add r4,r4,r0 + std r6,72(r1) + sldi r4,r4,3 + std r7,80(r1) + mflr r0 + std r8,88(r1) /* Store the LR in the LR Save area of the previous frame. */ - std 0,128+16(1) - mfcr 0 - std 9,96(1) - std 10,104(1) + std r0,128+16(r1) + mfcr r0 + std r9,96(r1) + std r10,104(r1) /* I'm almost certain we don't have to save cr... be safe. */ - std 0,8(1) + std r0,8(r1) bl JUMPTARGET(_dl_fixup) /* Put the registers back. */ - ld 0,128+16(1) - ld 10,104(1) - ld 9,96(1) - ld 8,88(1) - ld 7,80(1) - mtlr 0 - ld 0,8(1) - ld 6,72(1) - ld 5,64(1) - ld 4,56(1) - mtcrf 0xFF,0 + ld r0,128+16(r1) + ld r10,104(r1) + ld r9,96(r1) + ld r8,88(r1) + ld r7,80(r1) + mtlr r0 + ld r0,8(r1) + ld r6,72(r1) + ld r5,64(r1) + ld r4,56(r1) + mtcrf 0xFF,r0 /* Load the target address, toc and static chain reg from the function descriptor returned by fixup. */ - ld 0,0(3) - ld 2,8(3) - mtctr 0 - ld 11,16(3) - ld 3,48(1) + ld r0,0(r3) + ld r2,8(r3) + mtctr r0 + ld r11,16(r3) + ld r3,48(r1) /* Unwind the stack frame, and jump. */ - addi 1,1,128 + addi r1,r1,128 bctr END(_dl_runtime_resolve) |