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-rw-r--r--sysdeps/powerpc/powerpc32/dl-machine.h175
1 files changed, 9 insertions, 166 deletions
diff --git a/sysdeps/powerpc/powerpc32/dl-machine.h b/sysdeps/powerpc/powerpc32/dl-machine.h
index a8c1e3e490..de3b9e923a 100644
--- a/sysdeps/powerpc/powerpc32/dl-machine.h
+++ b/sysdeps/powerpc/powerpc32/dl-machine.h
@@ -1,5 +1,5 @@
/* Machine-dependent ELF dynamic relocation inline functions. PowerPC version.
- Copyright (C) 1995-2002, 2003 Free Software Foundation, Inc.
+ Copyright (C) 1995-2002, 2003, 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
@@ -100,160 +100,6 @@ elf_machine_load_address (void)
/* The PLT uses Elf32_Rela relocs. */
#define elf_machine_relplt elf_machine_rela
-/* This code is used in dl-runtime.c to call the `fixup' function
- and then redirect to the address it returns. It is called
- from code built in the PLT by elf_machine_runtime_setup. */
-#if !defined PROF
-#define ELF_MACHINE_RUNTIME_TRAMPOLINE asm ("\n\
- .section \".text\" \n\
- .align 2 \n\
- .globl _dl_runtime_resolve \n\
- .type _dl_runtime_resolve,@function \n\
-_dl_runtime_resolve: \n\
- # We need to save the registers used to pass parameters, and register 0,\n\
- # which is used by _mcount; the registers are saved in a stack frame.\n\
- stwu 1,-64(1) \n\
- stw 0,12(1) \n\
- stw 3,16(1) \n\
- stw 4,20(1) \n\
- # The code that calls this has put parameters for `fixup' in r12 and r11.\n\
- mr 3,12 \n\
- stw 5,24(1) \n\
- mr 4,11 \n\
- stw 6,28(1) \n\
- mflr 0 \n\
- # We also need to save some of the condition register fields.\n\
- stw 7,32(1) \n\
- stw 0,48(1) \n\
- stw 8,36(1) \n\
- mfcr 0 \n\
- stw 9,40(1) \n\
- stw 10,44(1) \n\
- stw 0,8(1) \n\
- bl fixup@local \n\
- # 'fixup' returns the address we want to branch to.\n\
- mtctr 3 \n\
- # Put the registers back...\n\
- lwz 0,48(1) \n\
- lwz 10,44(1) \n\
- lwz 9,40(1) \n\
- mtlr 0 \n\
- lwz 8,36(1) \n\
- lwz 0,8(1) \n\
- lwz 7,32(1) \n\
- lwz 6,28(1) \n\
- mtcrf 0xFF,0 \n\
- lwz 5,24(1) \n\
- lwz 4,20(1) \n\
- lwz 3,16(1) \n\
- lwz 0,12(1) \n\
- # ...unwind the stack frame, and jump to the PLT entry we updated.\n\
- addi 1,1,64 \n\
- bctr \n\
- .size _dl_runtime_resolve,.-_dl_runtime_resolve \n\
- \n\
- .align 2 \n\
- .globl _dl_prof_resolve \n\
- .type _dl_prof_resolve,@function \n\
-_dl_prof_resolve: \n\
- # We need to save the registers used to pass parameters, and register 0,\n\
- # which is used by _mcount; the registers are saved in a stack frame.\n\
- stwu 1,-64(1) \n\
- stw 0,12(1) \n\
- stw 3,16(1) \n\
- stw 4,20(1) \n\
- # The code that calls this has put parameters for `fixup' in r12 and r11.\n\
- mr 3,12 \n\
- stw 5,24(1) \n\
- mr 4,11 \n\
- stw 6,28(1) \n\
- mflr 5 \n\
- # We also need to save some of the condition register fields.\n\
- stw 7,32(1) \n\
- stw 5,48(1) \n\
- stw 8,36(1) \n\
- mfcr 0 \n\
- stw 9,40(1) \n\
- stw 10,44(1) \n\
- stw 0,8(1) \n\
- bl profile_fixup@local \n\
- # 'fixup' returns the address we want to branch to.\n\
- mtctr 3 \n\
- # Put the registers back...\n\
- lwz 0,48(1) \n\
- lwz 10,44(1) \n\
- lwz 9,40(1) \n\
- mtlr 0 \n\
- lwz 8,36(1) \n\
- lwz 0,8(1) \n\
- lwz 7,32(1) \n\
- lwz 6,28(1) \n\
- mtcrf 0xFF,0 \n\
- lwz 5,24(1) \n\
- lwz 4,20(1) \n\
- lwz 3,16(1) \n\
- lwz 0,12(1) \n\
- # ...unwind the stack frame, and jump to the PLT entry we updated.\n\
- addi 1,1,64 \n\
- bctr \n\
- .size _dl_prof_resolve,.-_dl_prof_resolve \n\
- # Undo '.section text'.\n\
- .previous \n\
-");
-#else
-# define ELF_MACHINE_RUNTIME_TRAMPOLINE asm ("\n\
- .section \".text\" \n\
- .align 2 \n\
- .globl _dl_runtime_resolve \n\
- .globl _dl_prof_resolve \n\
- .type _dl_runtime_resolve,@function \n\
- .type _dl_prof_resolve,@function \n\
-_dl_runtime_resolve: \n\
-_dl_prof_resolve: \n\
- # We need to save the registers used to pass parameters, and register 0,\n\
- # which is used by _mcount; the registers are saved in a stack frame.\n\
- stwu 1,-64(1) \n\
- stw 0,12(1) \n\
- stw 3,16(1) \n\
- stw 4,20(1) \n\
- # The code that calls this has put parameters for `fixup' in r12 and r11.\n\
- mr 3,12 \n\
- stw 5,24(1) \n\
- mr 4,11 \n\
- stw 6,28(1) \n\
- mflr 0 \n\
- # We also need to save some of the condition register fields.\n\
- stw 7,32(1) \n\
- stw 0,48(1) \n\
- stw 8,36(1) \n\
- mfcr 0 \n\
- stw 9,40(1) \n\
- stw 10,44(1) \n\
- stw 0,8(1) \n\
- bl fixup@local \n\
- # 'fixup' returns the address we want to branch to.\n\
- mtctr 3 \n\
- # Put the registers back...\n\
- lwz 0,48(1) \n\
- lwz 10,44(1) \n\
- lwz 9,40(1) \n\
- mtlr 0 \n\
- lwz 8,36(1) \n\
- lwz 0,8(1) \n\
- lwz 7,32(1) \n\
- lwz 6,28(1) \n\
- mtcrf 0xFF,0 \n\
- lwz 5,24(1) \n\
- lwz 4,20(1) \n\
- lwz 3,16(1) \n\
- lwz 0,12(1) \n\
- # ...unwind the stack frame, and jump to the PLT entry we updated.\n\
- addi 1,1,64 \n\
- bctr \n\
- .size _dl_runtime_resolve,.-_dl_runtime_resolve \n\
-");
-#endif
-
/* Mask identifying addresses reserved for the user program,
where the dynamic linker should not map anything. */
#define ELF_MACHINE_USER_ADDRESS_MASK 0xf0000000UL
@@ -328,9 +174,14 @@ elf_machine_plt_value (struct link_map *map, const Elf32_Rela *reloc,
return value + reloc->r_addend;
}
+
+/* Names of the architecture-specific auditing callback functions. */
+#define ARCH_LA_PLTENTER ppc32_gnu_pltenter
+#define ARCH_LA_PLTEXIT ppc32_gnu_pltexit
+
#endif /* dl_machine_h */
-#ifdef RESOLVE
+#ifdef RESOLVE_MAP
/* Do the actual processing of a reloc, once its target address
has been determined. */
@@ -381,16 +232,8 @@ elf_machine_rela (struct link_map *map, const Elf32_Rela *reloc,
value = map->l_addr;
else
{
-# if defined USE_TLS && !defined RTLD_BOOTSTRAP
sym_map = RESOLVE_MAP (&sym, version, r_type);
- value = sym == NULL ? 0 : sym_map->l_addr + sym->st_value;
-# else
- value = RESOLVE (&sym, version, r_type);
-# ifndef RTLD_BOOTSTRAP
- if (sym != NULL)
-# endif
- value += sym->st_value;
-# endif
+ value = sym_map == NULL ? 0 : sym_map->l_addr + sym->st_value;
}
value += reloc->r_addend;
#else
@@ -474,4 +317,4 @@ elf_machine_lazy_rel (struct link_map *map,
DT_RELA table. */
#define ELF_MACHINE_PLTREL_OVERLAP 1
-#endif /* RESOLVE */
+#endif /* RESOLVE_MAP */
generated by cgit v1.2.3 (git 2.39.1) at 2024-04-26 14:34:01 +0000