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Update.
2005-01-07 Ulrich Drepper <drepper@redhat.com> * elf/rtld.c [!DONT_USE_BOOTSTRAP_MAP] (_dl_start_final): Initialize l_relocated of rtld map. * sysdeps/powerpc/powerpc64/dl-trampoline.S: New file. * sysdeps/powerpc/powerpc64/dl-machine.h: Remove trampoline code here. Define ARCH_LA_PLTENTER and ARCH_LA_PLTEXIT. * sysdeps/generic/ldsodefs.h (struct audif_ifaces): Add ppc64 variants. * elf/tst-auditmod1.c: Add ppc64 support. * sysdeps/powerpc/powerpc64/bits/link.h: New file.
This commit is contained in:
Ulrich Drepper
parent
ea0034f3bf
commit
8222199266
11
ChangeLog
11
ChangeLog
@ -1,3 +1,14 @@
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2005-01-07 Ulrich Drepper <drepper@redhat.com>
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* elf/rtld.c [!DONT_USE_BOOTSTRAP_MAP] (_dl_start_final): Initialize
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l_relocated of rtld map.
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* sysdeps/powerpc/powerpc64/dl-trampoline.S: New file.
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* sysdeps/powerpc/powerpc64/dl-machine.h: Remove trampoline code here.
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Define ARCH_LA_PLTENTER and ARCH_LA_PLTEXIT.
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* sysdeps/generic/ldsodefs.h (struct audif_ifaces): Add ppc64 variants.
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* elf/tst-auditmod1.c: Add ppc64 support.
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* sysdeps/powerpc/powerpc64/bits/link.h: New file.
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2005-01-06 Roland McGrath <roland@redhat.com>
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[BZ #633]
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@ -263,6 +263,7 @@ _dl_start_final (void *arg, struct dl_start_final_info *info)
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memcpy (GL(dl_rtld_map).l_info, info->l.l_info,
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sizeof GL(dl_rtld_map).l_info);
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GL(dl_rtld_map).l_mach = info->l.l_mach;
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GL(dl_rtld_map).l_relocated = 1;
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#endif
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_dl_setup_hash (&GL(dl_rtld_map));
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GL(dl_rtld_map).l_real = &GL(dl_rtld_map);
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@ -4,6 +4,7 @@
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <bits/wordsize.h>
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#include <gnu/lib-names.h>
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@ -147,6 +148,29 @@ la_x86_64_gnu_pltexit (Elf64_Sym *sym, unsigned int ndx, uintptr_t *refcook,
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return 0;
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}
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#elif defined __powerpc__ && __WORDSIZE == 64
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uintptr_t
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la_ppc64_gnu_pltenter (Elf64_Sym *sym, unsigned int ndx, uintptr_t *refcook,
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uintptr_t *defcook, La_ppc64_regs *regs,
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unsigned int *flags, const char *symname,
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long int *framesizep)
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{
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printf ("ppc64_pltenter: symname=%s, st_value=%#lx, ndx=%u, flags=%u\n",
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symname, (long int) sym->st_value, ndx, *flags);
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return sym->st_value;
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}
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unsigned int
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la_ppc64_gnu_pltexit (Elf64_Sym *sym, unsigned int ndx, uintptr_t *refcook,
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uintptr_t *defcook, const La_ppc64_regs *inregs,
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La_ppc64_retval *outregs, const char *symname)
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{
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printf ("ppc64_pltexit: symname=%s, st_value=%#lx, ndx=%u, retval=%tu\n",
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symname, (long int) sym->st_value, ndx, outregs->lrv_r3);
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return 0;
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}
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#else
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# error "architecture specific code needed"
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#endif
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@ -1,5 +1,5 @@
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/* Run-time dynamic linker data structures for loaded ELF shared objects.
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Copyright (C) 1995-2002, 2003, 2004 Free Software Foundation, Inc.
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Copyright (C) 1995-2003, 2004, 2005 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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@ -179,6 +179,8 @@ struct La_i86_regs;
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struct La_i86_retval;
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struct La_x86_64_regs;
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struct La_x86_64_retval;
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struct La_ppc64_regs;
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struct La_ppc64_retval;
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struct audit_ifaces
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@ -205,6 +207,11 @@ struct audit_ifaces
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const struct La_x86_64_regs *,
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unsigned int *, const char *name,
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long int *framesizep);
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uintptr_t (*ppc64_gnu_pltenter) (Elf64_Sym *, unsigned int, uintptr_t *,
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uintptr_t *,
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const struct La_ppc64_regs *,
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unsigned int *, const char *name,
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long int *framesizep);
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};
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union
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{
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@ -216,6 +223,11 @@ struct audit_ifaces
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const struct La_x86_64_regs *,
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struct La_x86_64_retval *,
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const char *);
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unsigned int (*ppc64_gnu_pltexit) (Elf64_Sym *, unsigned int, uintptr_t *,
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uintptr_t *,
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const struct La_ppc64_regs *,
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struct La_ppc64_retval *,
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const char *);
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};
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unsigned int (*objclose) (uintptr_t *);
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70
sysdeps/powerpc/powerpc64/bits/link.h
Normal file
70
sysdeps/powerpc/powerpc64/bits/link.h
Normal file
@ -0,0 +1,70 @@
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/* Copyright (C) 2004, 2005 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#ifndef _LINK_H
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# error "Never include <bits/link.h> directly; use <link.h> instead."
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#endif
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#if __ELF_NATIVE_CLASS == 32
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#error "fill in ppc32 data"
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#else
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/* Registers for entry into PLT on x86-64. */
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typedef struct La_ppc64_regs
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{
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uint64_t lr_reg[8];
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double lr_fp[13];
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uint32_t lr_vreg[12][4];
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uint64_t lr_r1;
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uint64_t lr_lr;
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} La_ppc64_regs;
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/* Return values for calls from PLT on x86-64. */
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typedef struct La_ppc64_retval
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{
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uint64_t lrv_r3;
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uint64_t lrv_r4;
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double lrv_fp[8];
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uint32_t lrv_v2[4];
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} La_ppc64_retval;
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__BEGIN_DECLS
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extern Elf64_Addr la_ppc64_gnu_pltenter (Elf64_Sym *__sym,
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unsigned int __ndx,
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uintptr_t *__refcook,
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uintptr_t *__defcook,
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La_ppc64_regs *__regs,
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unsigned int *__flags,
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const char *__symname,
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long int *__framesizep);
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extern unsigned int la_ppc64_gnu_pltexit (Elf64_Sym *__sym,
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unsigned int __ndx,
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uintptr_t *__refcook,
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uintptr_t *__defcook,
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const La_ppc64_regs *__inregs,
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La_ppc64_retval *__outregs,
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const char *symname);
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__END_DECLS
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#endif
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@ -1,6 +1,6 @@
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/* Machine-dependent ELF dynamic relocation inline functions.
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PowerPC64 version.
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Copyright 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004
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Copyright 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005
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Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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@ -107,92 +107,6 @@ elf_machine_dynamic (void)
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/* The PLT uses Elf64_Rela relocs. */
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#define elf_machine_relplt elf_machine_rela
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/* This code gets called via a .glink stub which loads PLT0. It is
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used in dl-runtime.c to call the `fixup' function and then redirect
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to the address `fixup' returns.
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Enter with r0 = plt reloc index,
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r2 = ld.so tocbase,
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r11 = ld.so link map. */
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#define TRAMPOLINE_TEMPLATE(tramp_name, fixup_name) \
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asm (".section \".text\"\n" \
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" .align 2\n" \
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" .type " BODY_PREFIX #tramp_name ",@function\n" \
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" .section \".opd\",\"aw\"\n" \
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" .align 3\n" \
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" .globl " #tramp_name "\n" \
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" " ENTRY_2(tramp_name) "\n" \
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#tramp_name ":\n" \
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" " OPD_ENT(tramp_name) "\n" \
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" .previous\n" \
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BODY_PREFIX #tramp_name ":\n" \
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/* We need to save the registers used to pass parameters, ie. r3 thru \
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r10; the registers are saved in a stack frame. */ \
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" stdu 1,-128(1)\n" \
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" std 3,48(1)\n" \
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" mr 3,11\n" \
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" std 4,56(1)\n" \
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" sldi 4,0,1\n" \
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" std 5,64(1)\n" \
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" add 4,4,0\n" \
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" std 6,72(1)\n" \
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" sldi 4,4,3\n" \
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" std 7,80(1)\n" \
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" mflr 0\n" \
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" std 8,88(1)\n" \
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/* Store the LR in the LR Save area of the previous frame. */ \
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" std 0,128+16(1)\n" \
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" mfcr 0\n" \
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" std 9,96(1)\n" \
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" std 10,104(1)\n" \
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/* I'm almost certain we don't have to save cr... be safe. */ \
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" std 0,8(1)\n" \
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" bl " DOT_PREFIX #fixup_name "\n" \
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/* Put the registers back. */ \
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" ld 0,128+16(1)\n" \
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" ld 10,104(1)\n" \
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" ld 9,96(1)\n" \
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" ld 8,88(1)\n" \
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" ld 7,80(1)\n" \
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" mtlr 0\n" \
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" ld 0,8(1)\n" \
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" ld 6,72(1)\n" \
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" ld 5,64(1)\n" \
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" ld 4,56(1)\n" \
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" mtcrf 0xFF,0\n" \
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/* Load the target address, toc and static chain reg from the function \
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descriptor returned by fixup. */ \
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" ld 0,0(3)\n" \
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" ld 2,8(3)\n" \
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" mtctr 0\n" \
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" ld 11,16(3)\n" \
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" ld 3,48(1)\n" \
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/* Unwind the stack frame, and jump. */ \
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" addi 1,1,128\n" \
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" bctr\n" \
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".LT_" #tramp_name ":\n" \
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" .long 0\n" \
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" .byte 0x00,0x0c,0x24,0x40,0x00,0x00,0x00,0x00\n" \
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" .long .LT_" #tramp_name "-" BODY_PREFIX #tramp_name "\n" \
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" .short .LT_" #tramp_name "_name_end-.LT_" #tramp_name "_name_start\n" \
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".LT_" #tramp_name "_name_start:\n" \
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" .ascii \"" #tramp_name "\"\n" \
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".LT_" #tramp_name "_name_end:\n" \
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" .align 2\n" \
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" " END_2(tramp_name) "\n" \
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" .previous");
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#ifndef PROF
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#define ELF_MACHINE_RUNTIME_TRAMPOLINE \
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TRAMPOLINE_TEMPLATE (_dl_runtime_resolve, fixup); \
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TRAMPOLINE_TEMPLATE (_dl_profile_resolve, profile_fixup);
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#else
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#define ELF_MACHINE_RUNTIME_TRAMPOLINE \
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TRAMPOLINE_TEMPLATE (_dl_runtime_resolve, fixup); \
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void _dl_runtime_resolve (void); \
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strong_alias (_dl_runtime_resolve, _dl_profile_resolve);
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#endif
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#ifdef HAVE_INLINED_SYSCALLS
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/* We do not need _dl_starting_up. */
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@ -545,6 +459,11 @@ elf_machine_plt_value (struct link_map *map, const Elf64_Rela *reloc,
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return value + reloc->r_addend;
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}
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/* Names of the architecture-specific auditing callback functions. */
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#define ARCH_LA_PLTENTER ppc64_gnu_pltenter
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#define ARCH_LA_PLTEXIT ppc64_gnu_pltexit
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#endif /* dl_machine_h */
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#ifdef RESOLVE_MAP
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118
sysdeps/powerpc/powerpc64/dl-trampoline.S
Normal file
118
sysdeps/powerpc/powerpc64/dl-trampoline.S
Normal file
@ -0,0 +1,118 @@
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/* PLT trampolines. PPC64 version.
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Copyright (C) 2005 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#include <sysdep.h>
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.section ".text"
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EALIGN(_dl_runtime_resolve, 4, 0)
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/* We need to save the registers used to pass parameters, ie. r3 thru
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r10; the registers are saved in a stack frame. */
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stdu 1,-128(1)
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std 3,48(1)
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mr 3,11
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std 4,56(1)
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sldi 4,0,1
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std 5,64(1)
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add 4,4,0
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std 6,72(1)
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sldi 4,4,3
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std 7,80(1)
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mflr 0
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std 8,88(1)
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/* Store the LR in the LR Save area of the previous frame. */
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std 0,128+16(1)
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mfcr 0
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std 9,96(1)
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std 10,104(1)
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/* I'm almost certain we don't have to save cr... be safe. */
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std 0,8(1)
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bl JUMPTARGET(_dl_fixup)
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/* Put the registers back. */
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ld 0,128+16(1)
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ld 10,104(1)
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ld 9,96(1)
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ld 8,88(1)
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ld 7,80(1)
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mtlr 0
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ld 0,8(1)
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ld 6,72(1)
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ld 5,64(1)
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ld 4,56(1)
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mtcrf 0xFF,0
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/* Load the target address, toc and static chain reg from the function
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descriptor returned by fixup. */
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ld 0,0(3)
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ld 2,8(3)
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mtctr 0
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ld 11,16(3)
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ld 3,48(1)
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/* Unwind the stack frame, and jump. */
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addi 1,1,128
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bctr
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END(_dl_runtime_resolve)
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EALIGN(_dl_profile_resolve, 4, 0)
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/* We need to save the registers used to pass parameters, ie. r3 thru
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r10; the registers are saved in a stack frame. */
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stdu 1,-128(1)
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std 3,48(1)
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mr 3,11
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std 4,56(1)
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sldi 4,0,1
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std 5,64(1)
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add 4,4,0
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std 6,72(1)
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sldi 4,4,3
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std 7,80(1)
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mflr 0
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std 8,88(1)
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/* Store the LR in the LR Save area of the previous frame. */
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std 0,128+16(1)
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mfcr 0
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std 9,96(1)
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std 10,104(1)
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/* I'm almost certain we don't have to save cr... be safe. */
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std 0,8(1)
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bl JUMPTARGET(_dl_profile_fixup)
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/* Put the registers back. */
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ld 0,128+16(1)
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ld 10,104(1)
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ld 9,96(1)
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ld 8,88(1)
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ld 7,80(1)
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mtlr 0
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ld 0,8(1)
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ld 6,72(1)
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ld 5,64(1)
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ld 4,56(1)
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mtcrf 0xFF,0
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/* Load the target address, toc and static chain reg from the function
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descriptor returned by fixup. */
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ld 0,0(3)
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ld 2,8(3)
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mtctr 0
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ld 11,16(3)
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ld 3,48(1)
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/* Unwind the stack frame, and jump. */
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addi 1,1,128
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bctr
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END(_dl_profile_resolve)
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