From d585b66fa4d11059948f466c9080a6826932358d Mon Sep 17 00:00:00 2001 From: Jakub Jelinek Date: Tue, 8 Feb 2005 10:05:09 +0000 Subject: Updated to fedora-glibc-20050208T0948 --- sysdeps/powerpc/powerpc64/dl-trampoline.S | 196 ++++++++++++++++++++++++++++++ 1 file changed, 196 insertions(+) create mode 100644 sysdeps/powerpc/powerpc64/dl-trampoline.S (limited to 'sysdeps/powerpc/powerpc64/dl-trampoline.S') diff --git a/sysdeps/powerpc/powerpc64/dl-trampoline.S b/sysdeps/powerpc/powerpc64/dl-trampoline.S new file mode 100644 index 0000000000..316f17a405 --- /dev/null +++ b/sysdeps/powerpc/powerpc64/dl-trampoline.S @@ -0,0 +1,196 @@ +/* PLT trampolines. PPC64 version. + Copyright (C) 2005 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include + + .section ".text" + +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 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 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 r0,8(r1) + bl JUMPTARGET(_dl_fixup) +/* 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) + 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 r0,0(r3) + ld r2,8(r3) + mtctr r0 + ld r11,16(r3) + ld r3,48(r1) +/* Unwind the stack frame, and jump. */ + addi r1,r1,128 + bctr +END(_dl_runtime_resolve) + + + +EALIGN(_dl_profile_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 r1,-448(r1) + /* Stack layout: + + +432 stackframe + +424 lr + +416 r1 + +400 v12 + +384 v11 + +368 v10 + +362 v9 + +336 v8 + +320 v7 + +304 v6 + +288 v5 + +272 v4 + +256 v3 + +240 v2 + +224 v1 + +216 free + +208 fp13 + +200 fp12 + +192 fp11 + +184 fp10 + +176 fp9 + +168 fp8 + +160 fp7 + +152 fp6 + +144 fp5 + +136 fp4 + +128 fp3 + +120 fp2 + +112 fp1 + +104 r10 + +96 r9 + +88 r8 + +80 r7 + +72 r6 + +64 r5 + +56 r4 + +48 r3 + +8 cr + r1 link + */ + std r3,48(r1) + mr r3,r11 + std r4,56(r1) + sldi r4,r0,1 + std r5,64(r1) + add r4,r4,0 + std r6,72(r1) + sldi r4,r4,3 + std r7,80(r1) + mflr r5 + std r8,88(r1) +/* Store the LR in the LR Save area of the previous frame. */ +/* XXX Do we have to do this? */ + std r5,448+16(r1) + std r5,424(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 r0,8(r1) +/* Save floating registers. */ + stfd fp1,112(r1) + stfd fp2,120(r1) + stfd fp3,128(r1) + stfd fp4,136(r1) + stfd fp5,144(r1) + stfd fp6,152(r1) + stfd fp7,160(r1) + stfd fp8,168(r1) + stfd fp9,176(r1) + stfd fp10,184(r1) + stfd fp11,192(r1) + stfd fp12,200(r1) + stfd fp13,208(r1) +/* XXX TODO: store vmx registers. */ +/* Load the extra parameters. */ + addi r6,r1,48 + addi r7,r1,432 + li r0,-1 + stdu r0,0(r7) + bl JUMPTARGET(_dl_profile_fixup) +/* Put the registers back. */ + ld r0,448+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 r0,0(r3) + ld r2,8(r3) + mtctr r0 + ld r11,16(r3) + ld r3,48(r1) +/* Load the floating point registers. */ + lfd fp1,112(r1) + lfd fp2,120(r1) + lfd fp3,128(r1) + lfd fp4,136(r1) + lfd fp5,144(r1) + lfd fp6,152(r1) + lfd fp7,160(r1) + lfd fp8,168(r1) + lfd fp9,176(r1) + lfd fp10,184(r1) + lfd fp11,192(r1) + lfd fp12,200(r1) + lfd fp13,208(r1) +/* Unwind the stack frame, and jump. */ + addi r1,r1,448 + bctr +END(_dl_profile_resolve) -- cgit v1.2.3