diff options
Diffstat (limited to 'sysdeps/powerpc/powerpc64')
| -rw-r--r-- | sysdeps/powerpc/powerpc64/bits/link.h | 70 | ||||
| -rw-r--r-- | sysdeps/powerpc/powerpc64/dl-machine.h | 93 | ||||
| -rw-r--r-- | sysdeps/powerpc/powerpc64/dl-trampoline.S | 118 |
3 files changed, 194 insertions, 87 deletions
diff --git a/sysdeps/powerpc/powerpc64/bits/link.h b/sysdeps/powerpc/powerpc64/bits/link.h new file mode 100644 index 0000000000..e4988fef53 --- /dev/null +++ b/sysdeps/powerpc/powerpc64/bits/link.h @@ -0,0 +1,70 @@ +/* Copyright (C) 2004, 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. */ + +#ifndef _LINK_H +# error "Never include <bits/link.h> directly; use <link.h> instead." +#endif + + +#if __ELF_NATIVE_CLASS == 32 + +#error "fill in ppc32 data" + +#else + +/* Registers for entry into PLT on x86-64. */ +typedef struct La_ppc64_regs +{ + uint64_t lr_reg[8]; + double lr_fp[13]; + uint32_t lr_vreg[12][4]; + uint64_t lr_r1; + uint64_t lr_lr; +} La_ppc64_regs; + +/* Return values for calls from PLT on x86-64. */ +typedef struct La_ppc64_retval +{ + uint64_t lrv_r3; + uint64_t lrv_r4; + double lrv_fp[8]; + uint32_t lrv_v2[4]; +} La_ppc64_retval; + + +__BEGIN_DECLS + +extern Elf64_Addr la_ppc64_gnu_pltenter (Elf64_Sym *__sym, + unsigned int __ndx, + uintptr_t *__refcook, + uintptr_t *__defcook, + La_ppc64_regs *__regs, + unsigned int *__flags, + const char *__symname, + long int *__framesizep); +extern unsigned int la_ppc64_gnu_pltexit (Elf64_Sym *__sym, + unsigned int __ndx, + uintptr_t *__refcook, + uintptr_t *__defcook, + const La_ppc64_regs *__inregs, + La_ppc64_retval *__outregs, + const char *symname); + +__END_DECLS + +#endif diff --git a/sysdeps/powerpc/powerpc64/dl-machine.h b/sysdeps/powerpc/powerpc64/dl-machine.h index 3fcf77df71..80c7d9f4ec 100644 --- a/sysdeps/powerpc/powerpc64/dl-machine.h +++ b/sysdeps/powerpc/powerpc64/dl-machine.h @@ -1,6 +1,6 @@ /* Machine-dependent ELF dynamic relocation inline functions. PowerPC64 version. - Copyright 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004 + Copyright 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005 Free Software Foundation, Inc. This file is part of the GNU C Library. @@ -107,92 +107,6 @@ elf_machine_dynamic (void) /* The PLT uses Elf64_Rela relocs. */ #define elf_machine_relplt elf_machine_rela -/* This code gets called via a .glink stub which loads PLT0. It is - used in dl-runtime.c to call the `fixup' function and then redirect - to the address `fixup' returns. - - Enter with r0 = plt reloc index, - r2 = ld.so tocbase, - r11 = ld.so link map. */ - -#define TRAMPOLINE_TEMPLATE(tramp_name, fixup_name) \ - asm (".section \".text\"\n" \ -" .align 2\n" \ -" .type " BODY_PREFIX #tramp_name ",@function\n" \ -" .section \".opd\",\"aw\"\n" \ -" .align 3\n" \ -" .globl " #tramp_name "\n" \ -" " ENTRY_2(tramp_name) "\n" \ -#tramp_name ":\n" \ -" " OPD_ENT(tramp_name) "\n" \ -" .previous\n" \ -BODY_PREFIX #tramp_name ":\n" \ -/* 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)\n" \ -" std 3,48(1)\n" \ -" mr 3,11\n" \ -" std 4,56(1)\n" \ -" sldi 4,0,1\n" \ -" std 5,64(1)\n" \ -" add 4,4,0\n" \ -" std 6,72(1)\n" \ -" sldi 4,4,3\n" \ -" std 7,80(1)\n" \ -" mflr 0\n" \ -" std 8,88(1)\n" \ -/* Store the LR in the LR Save area of the previous frame. */ \ -" std 0,128+16(1)\n" \ -" mfcr 0\n" \ -" std 9,96(1)\n" \ -" std 10,104(1)\n" \ -/* I'm almost certain we don't have to save cr... be safe. */ \ -" std 0,8(1)\n" \ -" bl " DOT_PREFIX #fixup_name "\n" \ -/* Put the registers back. */ \ -" ld 0,128+16(1)\n" \ -" ld 10,104(1)\n" \ -" ld 9,96(1)\n" \ -" ld 8,88(1)\n" \ -" ld 7,80(1)\n" \ -" mtlr 0\n" \ -" ld 0,8(1)\n" \ -" ld 6,72(1)\n" \ -" ld 5,64(1)\n" \ -" ld 4,56(1)\n" \ -" mtcrf 0xFF,0\n" \ -/* Load the target address, toc and static chain reg from the function \ - descriptor returned by fixup. */ \ -" ld 0,0(3)\n" \ -" ld 2,8(3)\n" \ -" mtctr 0\n" \ -" ld 11,16(3)\n" \ -" ld 3,48(1)\n" \ -/* Unwind the stack frame, and jump. */ \ -" addi 1,1,128\n" \ -" bctr\n" \ -".LT_" #tramp_name ":\n" \ -" .long 0\n" \ -" .byte 0x00,0x0c,0x24,0x40,0x00,0x00,0x00,0x00\n" \ -" .long .LT_" #tramp_name "-" BODY_PREFIX #tramp_name "\n" \ -" .short .LT_" #tramp_name "_name_end-.LT_" #tramp_name "_name_start\n" \ -".LT_" #tramp_name "_name_start:\n" \ -" .ascii \"" #tramp_name "\"\n" \ -".LT_" #tramp_name "_name_end:\n" \ -" .align 2\n" \ -" " END_2(tramp_name) "\n" \ -" .previous"); - -#ifndef PROF -#define ELF_MACHINE_RUNTIME_TRAMPOLINE \ - TRAMPOLINE_TEMPLATE (_dl_runtime_resolve, fixup); \ - TRAMPOLINE_TEMPLATE (_dl_profile_resolve, profile_fixup); -#else -#define ELF_MACHINE_RUNTIME_TRAMPOLINE \ - TRAMPOLINE_TEMPLATE (_dl_runtime_resolve, fixup); \ - void _dl_runtime_resolve (void); \ - strong_alias (_dl_runtime_resolve, _dl_profile_resolve); -#endif #ifdef HAVE_INLINED_SYSCALLS /* We do not need _dl_starting_up. */ @@ -545,6 +459,11 @@ elf_machine_plt_value (struct link_map *map, const Elf64_Rela *reloc, return value + reloc->r_addend; } + +/* Names of the architecture-specific auditing callback functions. */ +#define ARCH_LA_PLTENTER ppc64_gnu_pltenter +#define ARCH_LA_PLTEXIT ppc64_gnu_pltexit + #endif /* dl_machine_h */ #ifdef RESOLVE_MAP diff --git a/sysdeps/powerpc/powerpc64/dl-trampoline.S b/sysdeps/powerpc/powerpc64/dl-trampoline.S new file mode 100644 index 0000000000..71d16f2dba --- /dev/null +++ b/sysdeps/powerpc/powerpc64/dl-trampoline.S @@ -0,0 +1,118 @@ +/* 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 <sysdep.h> + + .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 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) +/* 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) +/* I'm almost certain we don't have to save cr... be safe. */ + std 0,8(1) + 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 +/* 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) +/* Unwind the stack frame, and jump. */ + addi 1,1,128 + 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 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) +/* 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) +/* I'm almost certain we don't have to save cr... be safe. */ + std 0,8(1) + bl JUMPTARGET(_dl_profile_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 +/* 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) +/* Unwind the stack frame, and jump. */ + addi 1,1,128 + bctr +END(_dl_profile_resolve) |