diff options
Diffstat (limited to 'sysdeps/sh/dl-trampoline.S')
| -rw-r--r-- | sysdeps/sh/dl-trampoline.S | 431 |
1 files changed, 431 insertions, 0 deletions
diff --git a/sysdeps/sh/dl-trampoline.S b/sysdeps/sh/dl-trampoline.S new file mode 100644 index 0000000..79493d5 --- /dev/null +++ b/sysdeps/sh/dl-trampoline.S @@ -0,0 +1,431 @@ +/* PLT trampolines. SH 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 <sysdep.h> + + .text + .globl _dl_runtime_resolve + .type _dl_runtime_resolve, @function + cfi_startproc + .align 5 +_dl_runtime_resolve: + mov.l r2,@-r15 + cfi_adjust_cfa_offset (4) + mov.l r3,@-r15 + cfi_adjust_cfa_offset (4) + mov.l r4,@-r15 + cfi_adjust_cfa_offset (4) + mov.l r5,@-r15 + cfi_adjust_cfa_offset (4) + mov.l r6,@-r15 + cfi_adjust_cfa_offset (4) + mov.l r7,@-r15 + cfi_adjust_cfa_offset (4) + mov.l r12,@-r15 + cfi_adjust_cfa_offset (4) + sts.l macl,@-r15 + cfi_adjust_cfa_offset (4) + sts.l mach,@-r15 + cfi_adjust_cfa_offset (4) + movt r3 ! Save T flag. + mov.l r3,@-r15 + cfi_adjust_cfa_offset (4) +#ifdef HAVE_FPU + sts.l fpscr,@-r15 + cfi_adjust_cfa_offset (4) + mov #8,r3 + swap.w r3,r3 + lds r3,fpscr + fmov.s fr11,@-r15 + cfi_adjust_cfa_offset (4) + fmov.s fr10,@-r15 + cfi_adjust_cfa_offset (4) + fmov.s fr9,@-r15 + cfi_adjust_cfa_offset (4) + fmov.s fr8,@-r15 + cfi_adjust_cfa_offset (4) + fmov.s fr7,@-r15 + cfi_adjust_cfa_offset (4) + fmov.s fr6,@-r15 + cfi_adjust_cfa_offset (4) + fmov.s fr5,@-r15 + cfi_adjust_cfa_offset (4) + fmov.s fr4,@-r15 + cfi_adjust_cfa_offset (4) +#endif + sts.l pr,@-r15 + cfi_adjust_cfa_offset (4) + tst r0,r0 + bt 1f + mov r0,r2 +1: + mov r0,r4 ! PLT type + mov r2,r5 ! link map address +#ifdef SHARED + mov.l 2f,r2 + mova 2f,r0 + add r0,r2 ! Get GOT address in r2 + mov.l 3f,r0 + add r2,r0 +#else + mov.l 3f,r0 +#endif + jsr @r0 ! Call resolver. + mov r1,r6 ! reloc offset + lds.l @r15+,pr ! Get register content back. + cfi_adjust_cfa_offset (-4) +#ifdef HAVE_FPU + fmov.s @r15+,fr4 + cfi_adjust_cfa_offset (-4) + fmov.s @r15+,fr5 + cfi_adjust_cfa_offset (-4) + fmov.s @r15+,fr6 + cfi_adjust_cfa_offset (-4) + fmov.s @r15+,fr7 + cfi_adjust_cfa_offset (-4) + fmov.s @r15+,fr8 + cfi_adjust_cfa_offset (-4) + fmov.s @r15+,fr9 + cfi_adjust_cfa_offset (-4) + fmov.s @r15+,fr10 + cfi_adjust_cfa_offset (-4) + fmov.s @r15+,fr11 + cfi_adjust_cfa_offset (-4) + lds.l @r15+,fpscr + cfi_adjust_cfa_offset (-4) +#endif + mov.l @r15+,r3 + cfi_adjust_cfa_offset (-4) + shal r3 ! Lode T flag. + lds.l @r15+,mach + cfi_adjust_cfa_offset (-4) + lds.l @r15+,macl + cfi_adjust_cfa_offset (-4) + mov.l @r15+,r12 + cfi_adjust_cfa_offset (-4) + mov.l @r15+,r7 + cfi_adjust_cfa_offset (-4) + mov.l @r15+,r6 + cfi_adjust_cfa_offset (-4) + mov.l @r15+,r5 + cfi_adjust_cfa_offset (-4) + mov.l @r15+,r4 + cfi_adjust_cfa_offset (-4) + mov.l @r15+,r3 + cfi_adjust_cfa_offset (-4) + jmp @r0 ! Jump to function address. + mov.l @r15+,r2 + cfi_adjust_cfa_offset (-4) + .align 2 +#ifdef SHARED +2: .long _GLOBAL_OFFSET_TABLE_ +3: .long _dl_fixup@GOTOFF +#else +3: .long _dl_fixup +#endif + cfi_endproc + .size _dl_runtime_resolve, .-_dl_runtime_resolve + + + .globl _dl_runtime_profile + .type _dl_runtime_profile,@function + cfi_startproc + .align 5 +_dl_runtime_profile: + mov.l r12,@-r15 + cfi_adjust_cfa_offset (4) +#ifdef HAVE_FPU + sts.l fpscr,@-r15 + cfi_adjust_cfa_offset (4) + mov #8,r12 + swap.w r12,r12 + lds r12,fpscr + fmov.s fr11,@-r15 + cfi_adjust_cfa_offset (4) + fmov.s fr10,@-r15 + cfi_adjust_cfa_offset (4) + fmov.s fr9,@-r15 + cfi_adjust_cfa_offset (4) + fmov.s fr8,@-r15 + cfi_adjust_cfa_offset (4) + fmov.s fr7,@-r15 + cfi_adjust_cfa_offset (4) + fmov.s fr6,@-r15 + cfi_adjust_cfa_offset (4) + fmov.s fr5,@-r15 + cfi_adjust_cfa_offset (4) + fmov.s fr4,@-r15 + cfi_adjust_cfa_offset (4) +#else + add #-36,r15 + cfi_adjust_cfa_offset (36) +#endif + mov.l r7,@-r15 + cfi_adjust_cfa_offset (4) + mov.l r6,@-r15 + cfi_adjust_cfa_offset (4) + mov.l r5,@-r15 + cfi_adjust_cfa_offset (4) + mov.l r4,@-r15 + cfi_adjust_cfa_offset (4) + mov.l r3,@-r15 + cfi_adjust_cfa_offset (4) + mov.l r2,@-r15 + cfi_adjust_cfa_offset (4) + sts.l macl,@-r15 + cfi_adjust_cfa_offset (4) + sts.l mach,@-r15 + cfi_adjust_cfa_offset (4) + movt r3 ! Save T flag. + mov.l r3,@-r15 + cfi_adjust_cfa_offset (4) + sts.l pr,@-r15 + cfi_adjust_cfa_offset (4) + tst r0,r0 + bt 1f + mov r0,r2 +1: + mov r0,r4 ! PLT type + mov r2,r5 ! link map address + sts pr,r7 ! return address + add #-24,r15 + cfi_adjust_cfa_offset (24) + mov #40,r0 + add r15,r0 + mov.l r0,@r15 ! Address of the register structure + mov #-1,r0 + mov.l r0,@(8,r15) + mov #8,r0 + add r15,r0 + mov.l r0,@(4,r15) + mov.l r5,@(12,r15) + mov.l r1,@(16,r15) +#ifdef SHARED + mov.l 2f,r12 + mova 2f,r0 + add r0,r12 ! Get GOT address in r12 + mov.l 3f,r0 + add r12,r0 +#else + mov.l 3f,r0 +#endif + jsr @r0 ! Call resolver. + mov r1,r6 ! reloc offset + mov.l @(8,r15),r1 + cmp/pz r1 + bt 4f + add #24,r15 + cfi_adjust_cfa_offset (-24) + lds.l @r15+,pr ! Get register content back. + cfi_adjust_cfa_offset (-4) + mov.l @r15+,r3 + cfi_adjust_cfa_offset (-4) + shal r3 ! Lode T flag. + lds.l @r15+,mach + cfi_adjust_cfa_offset (-4) + lds.l @r15+,macl + cfi_adjust_cfa_offset (-4) + mov.l @r15+,r2 + cfi_adjust_cfa_offset (-4) + mov.l @r15+,r3 + cfi_adjust_cfa_offset (-4) + mov.l @r15+,r4 + cfi_adjust_cfa_offset (-4) + mov.l @r15+,r5 + cfi_adjust_cfa_offset (-4) + mov.l @r15+,r6 + cfi_adjust_cfa_offset (-4) + mov.l @r15+,r7 + cfi_adjust_cfa_offset (-4) +#ifdef HAVE_FPU + fmov.s @r15+,fr4 + cfi_adjust_cfa_offset (-4) + fmov.s @r15+,fr5 + cfi_adjust_cfa_offset (-4) + fmov.s @r15+,fr6 + cfi_adjust_cfa_offset (-4) + fmov.s @r15+,fr7 + cfi_adjust_cfa_offset (-4) + fmov.s @r15+,fr8 + cfi_adjust_cfa_offset (-4) + fmov.s @r15+,fr9 + cfi_adjust_cfa_offset (-4) + fmov.s @r15+,fr10 + cfi_adjust_cfa_offset (-4) + fmov.s @r15+,fr11 + cfi_adjust_cfa_offset (-4) + lds.l @r15+,fpscr + cfi_adjust_cfa_offset (-4) +#else + add #36,r15 + cfi_adjust_cfa_offset (-36) +#endif + jmp @r0 ! Jump to function address. + mov.l @r15+,r12 + cfi_adjust_cfa_offset (-4) + .align 2 +#ifdef SHARED +2: .long _GLOBAL_OFFSET_TABLE_ +3: .long _dl_profile_fixup@GOTOFF +#else +3: .long _dl_profile_fixup +#endif + + cfi_adjust_cfa_offset (104) +4: + mov #104,r3 + add r15,r3 ! Original stack + mov.l r8,@(20,r15) + cfi_rel_offset (r8, 20) + mov r15,r8 + sub r1,r15 + shlr2 r15 + shll2 r15 + mov r15,r4 + shlr2 r1 + tst r1,r1 +5: + bt/s 6f + dt r1 + mov.l @r3+,r2 + mov.l r2,@r4 + bra 5b + add #4,r4 +6: + mov.l @r8,r12 + mov.l @r12+,r2 + mov.l @r12+,r3 + mov.l @r12+,r4 + mov.l @r12+,r5 + mov.l @r12+,r6 + mov.l @r12+,r7 +#ifdef HAVE_FPU + fmov.s @r12+,fr4 + fmov.s @r12+,fr5 + fmov.s @r12+,fr6 + fmov.s @r12+,fr7 + fmov.s @r12+,fr8 + fmov.s @r12+,fr9 + fmov.s @r12+,fr10 + fmov.s @r12+,fr11 + lds.l @r12+,fpscr +#else + add #36,r2 +#endif + jsr @r0 ! Call function. + nop + mov r8,r15 + mov.l @(12,r15),r4 ! link map address + mov.l @(16,r15),r5 ! reloc offset + mov.l @r15,r6 ! input registers +#ifdef HAVE_FPU + mov #16,r8 + add r15,r8 + fmov.s fr1,@-r8 + fmov.s fr0,@-r8 +#else + mov #8,r8 + add r15,r8 +#endif + mov.l r1,@-r8 + mov.l r0,@-r8 + mov.l @(20,r15),r8 + cfi_restore (r8) +#ifdef SHARED + mov.l 7f,r12 + mova 7f,r0 + add r0,r12 ! Get GOT address in r12 + mov.l 8f,r0 + add r12,r0 +#else + mov.l 8f,r0 +#endif + jsr @r0 + mov r15,r7 ! output registers + mov.l @r15+,r0 + cfi_adjust_cfa_offset (-4) + mov.l @r15+,r1 + cfi_adjust_cfa_offset (-4) +#ifdef HAVE_FPU + fmov.s @r15+,fr0 + cfi_adjust_cfa_offset (-4) + fmov.s @r15+,fr1 + cfi_adjust_cfa_offset (-4) + add #8,r15 + cfi_adjust_cfa_offset (-8) +#else + add #16,r15 + cfi_adjust_cfa_offset (-16) +#endif + lds.l @r15+,pr ! Get register content back. + cfi_adjust_cfa_offset (-4) + mov.l @r15+,r3 + cfi_adjust_cfa_offset (-4) + shal r3 ! Lode T flag. + lds.l @r15+,mach + cfi_adjust_cfa_offset (-4) + lds.l @r15+,macl + cfi_adjust_cfa_offset (-4) + mov.l @r15+,r2 + cfi_adjust_cfa_offset (-4) + mov.l @r15+,r3 + cfi_adjust_cfa_offset (-4) + mov.l @r15+,r4 + cfi_adjust_cfa_offset (-4) + mov.l @r15+,r5 + cfi_adjust_cfa_offset (-4) + mov.l @r15+,r6 + cfi_adjust_cfa_offset (-4) + mov.l @r15+,r7 + cfi_adjust_cfa_offset (-4) +#ifdef HAVE_FPU + fmov.s @r15+,fr4 + cfi_adjust_cfa_offset (-4) + fmov.s @r15+,fr5 + cfi_adjust_cfa_offset (-4) + fmov.s @r15+,fr6 + cfi_adjust_cfa_offset (-4) + fmov.s @r15+,fr7 + cfi_adjust_cfa_offset (-4) + fmov.s @r15+,fr8 + cfi_adjust_cfa_offset (-4) + fmov.s @r15+,fr9 + cfi_adjust_cfa_offset (-4) + fmov.s @r15+,fr10 + cfi_adjust_cfa_offset (-4) + fmov.s @r15+,fr11 + cfi_adjust_cfa_offset (-4) + lds.l @r15+,fpscr + cfi_adjust_cfa_offset (-4) +#else + add #36,r15 + cfi_adjust_cfa_offset (-36) +#endif + rts ! Jump to function address. + mov.l @r15+,r12 + cfi_adjust_cfa_offset (-4) + cfi_endproc + .align 2 +#ifdef SHARED +7: .long _GLOBAL_OFFSET_TABLE_ +8: .long _dl_call_pltexit@GOTOFF +#else +8: .long _dl_call_pltexit +#endif + .size _dl_runtime_profile, .-_dl_runtime_profile |