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Diffstat (limited to 'sysdeps/sh/dl-machine.h')
-rw-r--r--sysdeps/sh/dl-machine.h299
1 files changed, 282 insertions, 17 deletions
diff --git a/sysdeps/sh/dl-machine.h b/sysdeps/sh/dl-machine.h
index e73c6d79c3..271666a2a3 100644
--- a/sysdeps/sh/dl-machine.h
+++ b/sysdeps/sh/dl-machine.h
@@ -1,5 +1,5 @@
/* Machine-dependent ELF dynamic relocation inline functions. SH version.
- Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005
+ Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004
Free Software Foundation, Inc.
This file is part of the GNU C Library.
@@ -21,6 +21,8 @@
#ifndef dl_machine_h
#define dl_machine_h
+/* Only dummy. This doesn't work. */
+
#define ELF_MACHINE_NAME "SH"
#include <sys/param.h>
@@ -104,9 +106,7 @@ elf_machine_runtime_setup (struct link_map *l, int lazy, int profile)
{
got[2] = (Elf32_Addr) &_dl_runtime_profile;
/* Say that we really want profiling and the timers are started. */
- if (GLRO(dl_profile) != NULL
- && _dl_name_match_p (GLRO(dl_profile), l))
- GL(dl_profile_map) = l;
+ GL(dl_profile_map) = l;
}
else
/* This function will get called to fix up the GOT entry indicated by
@@ -116,8 +116,273 @@ elf_machine_runtime_setup (struct link_map *l, int lazy, int profile)
return lazy;
}
+/* This code is used in dl-runtime.c to call the `fixup' function
+ and then redirect to the address it returns. */
+
#define ELF_MACHINE_RUNTIME_FIXUP_ARGS int plt_type
+#ifdef SHARED
+#define FUN_ADDR "\
+ mov.l 1f,r2\n\
+ mova 1f,r0\n\
+ bra 2f\n\
+ add r0,r2 ! Get GOT address in r2\n\
+0: .align 2\n\
+1: .long _GLOBAL_OFFSET_TABLE_\n\
+2: mov.l 3f,r0\n\
+ add r2,r0"
+#define GOTJMP(x) #x "@GOTOFF"
+#else
+#define FUN_ADDR "\
+ mov.l 3f,r0"
+#define GOTJMP(x) #x
+#endif
+
+#ifdef HAVE_FPU
+#define FGR_SAVE "\
+ sts.l fpscr, @-r15\n\
+ " CFI_ADJUST_CFA_OFFSET (4) "\n\
+ mov #8,r3\n\
+ swap.w r3, r3\n\
+ lds r3, fpscr\n\
+ fmov.s fr11, @-r15\n\
+ " CFI_ADJUST_CFA_OFFSET (4) "\n\
+ fmov.s fr10, @-r15\n\
+ " CFI_ADJUST_CFA_OFFSET (4) "\n\
+ fmov.s fr9, @-r15\n\
+ " CFI_ADJUST_CFA_OFFSET (4) "\n\
+ fmov.s fr8, @-r15\n\
+ " CFI_ADJUST_CFA_OFFSET (4) "\n\
+ fmov.s fr7, @-r15\n\
+ " CFI_ADJUST_CFA_OFFSET (4) "\n\
+ fmov.s fr6, @-r15\n\
+ " CFI_ADJUST_CFA_OFFSET (4) "\n\
+ fmov.s fr5, @-r15\n\
+ " CFI_ADJUST_CFA_OFFSET (4) "\n\
+ fmov.s fr4, @-r15\n\
+ " CFI_ADJUST_CFA_OFFSET (4)
+#define FGR_LOAD "\
+ fmov.s @r15+, fr4\n\
+ " CFI_ADJUST_CFA_OFFSET (-4) "\n\
+ fmov.s @r15+, fr5\n\
+ " CFI_ADJUST_CFA_OFFSET (-4) "\n\
+ fmov.s @r15+, fr6\n\
+ " CFI_ADJUST_CFA_OFFSET (-4) "\n\
+ fmov.s @r15+, fr7\n\
+ " CFI_ADJUST_CFA_OFFSET (-4) "\n\
+ fmov.s @r15+, fr8\n\
+ " CFI_ADJUST_CFA_OFFSET (-4) "\n\
+ fmov.s @r15+, fr9\n\
+ " CFI_ADJUST_CFA_OFFSET (-4) "\n\
+ fmov.s @r15+, fr10\n\
+ " CFI_ADJUST_CFA_OFFSET (-4) "\n\
+ fmov.s @r15+, fr11\n\
+ " CFI_ADJUST_CFA_OFFSET (-4) "\n\
+ lds.l @r15+, fpscr\n\
+ " CFI_ADJUST_CFA_OFFSET (-4)
+#else
+#define FGR_SAVE ""
+#define FGR_LOAD ""
+#endif
+
+#ifndef PROF
+# define ELF_MACHINE_RUNTIME_TRAMPOLINE asm ("\
+ .text\n\
+ .globl _dl_runtime_resolve\n\
+ .type _dl_runtime_resolve, @function\n\
+ " CFI_STARTPROC "\n\
+ .align 5\n\
+_dl_runtime_resolve:\n\
+ mov.l r2,@-r15\n\
+ " CFI_ADJUST_CFA_OFFSET (4) "\n\
+ mov.l r3,@-r15\n\
+ " CFI_ADJUST_CFA_OFFSET (4) "\n\
+ mov.l r4,@-r15\n\
+ " CFI_ADJUST_CFA_OFFSET (4) "\n\
+ mov.l r5,@-r15\n\
+ " CFI_ADJUST_CFA_OFFSET (4) "\n\
+ mov.l r6,@-r15\n\
+ " CFI_ADJUST_CFA_OFFSET (4) "\n\
+ mov.l r7,@-r15\n\
+ " CFI_ADJUST_CFA_OFFSET (4) "\n\
+ mov.l r12,@-r15\n\
+ " CFI_ADJUST_CFA_OFFSET (4) "\n\
+ movt r3 ! Save T flag.\n\
+ mov.l r3,@-r15\n\
+ " CFI_ADJUST_CFA_OFFSET (4) "\n\
+ " FGR_SAVE "\n\
+ sts.l pr,@-r15\n\
+ " CFI_ADJUST_CFA_OFFSET (4) "\n\
+ tst r0,r0\n\
+ bt 1f\n\
+ mov r0,r2\n\
+1:\n\
+ mov r0,r4 ! PLT type\n\
+ mov r2,r5 ! link map address\n\
+ " FUN_ADDR "\n\
+ jsr @r0 ! Call resolver.\n\
+ mov r1,r6 ! reloc offset\n\
+ lds.l @r15+,pr ! Get register content back.\n\
+ " CFI_ADJUST_CFA_OFFSET (-4) "\n\
+ " FGR_LOAD "\n\
+ mov.l @r15+,r3\n\
+ " CFI_ADJUST_CFA_OFFSET (-4) "\n\
+ shal r3 ! Lode T flag.\n\
+ mov.l @r15+,r12\n\
+ " CFI_ADJUST_CFA_OFFSET (-4) "\n\
+ mov.l @r15+,r7\n\
+ " CFI_ADJUST_CFA_OFFSET (-4) "\n\
+ mov.l @r15+,r6\n\
+ " CFI_ADJUST_CFA_OFFSET (-4) "\n\
+ mov.l @r15+,r5\n\
+ " CFI_ADJUST_CFA_OFFSET (-4) "\n\
+ mov.l @r15+,r4\n\
+ " CFI_ADJUST_CFA_OFFSET (-4) "\n\
+ mov.l @r15+,r3\n\
+ " CFI_ADJUST_CFA_OFFSET (-4) "\n\
+ jmp @r0 ! Jump to function address.\n\
+ mov.l @r15+,r2\n\
+ " CFI_ADJUST_CFA_OFFSET (-4) "\n\
+ .align 2\n\
+3:\n\
+ .long " GOTJMP (fixup) "\n\
+ " CFI_ENDPROC "\n\
+ .size _dl_runtime_resolve, .-_dl_runtime_resolve\n\
+\n\
+ .globl _dl_runtime_profile\n\
+ .type _dl_runtime_profile, @function\n\
+ " CFI_STARTPROC "\n\
+ .align 5\n\
+_dl_runtime_profile:\n\
+ mov.l r2,@-r15\n\
+ " CFI_ADJUST_CFA_OFFSET (4) "\n\
+ mov.l r3,@-r15\n\
+ " CFI_ADJUST_CFA_OFFSET (4) "\n\
+ mov.l r4,@-r15\n\
+ " CFI_ADJUST_CFA_OFFSET (4) "\n\
+ mov.l r5,@-r15\n\
+ " CFI_ADJUST_CFA_OFFSET (4) "\n\
+ mov.l r6,@-r15\n\
+ " CFI_ADJUST_CFA_OFFSET (4) "\n\
+ mov.l r7,@-r15\n\
+ " CFI_ADJUST_CFA_OFFSET (4) "\n\
+ mov.l r12,@-r15\n\
+ " CFI_ADJUST_CFA_OFFSET (4) "\n\
+ movt r3 ! Save T flag.\n\
+ mov.l r3,@-r15\n\
+ " CFI_ADJUST_CFA_OFFSET (4) "\n\
+ " FGR_SAVE "\n\
+ sts.l pr,@-r15\n\
+ " CFI_ADJUST_CFA_OFFSET (4) "\n\
+ tst r0,r0\n\
+ bt 1f\n\
+ mov r0,r2\n\
+1:\n\
+ mov r0,r4 ! PLT type\n\
+ mov r2,r5 ! link map address\n\
+ sts pr,r7 ! return address\n\
+ " FUN_ADDR "\n\
+ jsr @r0 ! Call resolver.\n\
+ mov r1,r6 ! reloc offset\n\
+ lds.l @r15+,pr ! Get register content back.\n\
+ " CFI_ADJUST_CFA_OFFSET (-4) "\n\
+ " FGR_LOAD "\n\
+ mov.l @r15+,r3\n\
+ " CFI_ADJUST_CFA_OFFSET (-4) "\n\
+ shal r3 ! Lode T flag.\n\
+ mov.l @r15+,r12\n\
+ " CFI_ADJUST_CFA_OFFSET (-4) "\n\
+ mov.l @r15+,r7\n\
+ " CFI_ADJUST_CFA_OFFSET (-4) "\n\
+ mov.l @r15+,r6\n\
+ " CFI_ADJUST_CFA_OFFSET (-4) "\n\
+ mov.l @r15+,r5\n\
+ " CFI_ADJUST_CFA_OFFSET (-4) "\n\
+ mov.l @r15+,r4\n\
+ " CFI_ADJUST_CFA_OFFSET (-4) "\n\
+ mov.l @r15+,r3\n\
+ " CFI_ADJUST_CFA_OFFSET (-4) "\n\
+ jmp @r0 ! Jump to function address.\n\
+ mov.l @r15+,r2\n\
+ " CFI_ADJUST_CFA_OFFSET (-4) "\n\
+ .align 2\n\
+3:\n\
+ .long " GOTJMP (profile_fixup) "\n\
+ " CFI_ENDPROC "\n\
+ .size _dl_runtime_profile, .-_dl_runtime_profile\n\
+ .previous\n\
+");
+#else
+# define ELF_MACHINE_RUNTIME_TRAMPOLINE asm ("\
+ .text\n\
+ .globl _dl_runtime_resolve\n\
+ .globl _dl_runtime_profile\n\
+ .type _dl_runtime_resolve, @function\n\
+ .type _dl_runtime_profile, @function\n\
+ .align 5\n\
+_dl_runtime_resolve:\n\
+_dl_runtime_profile:\n\
+ mov.l r2,@-r15\n\
+ " CFI_ADJUST_CFA_OFFSET (4) "\n\
+ mov.l r3,@-r15\n\
+ " CFI_ADJUST_CFA_OFFSET (4) "\n\
+ mov.l r4,@-r15\n\
+ " CFI_ADJUST_CFA_OFFSET (4) "\n\
+ mov.l r5,@-r15\n\
+ " CFI_ADJUST_CFA_OFFSET (4) "\n\
+ mov.l r6,@-r15\n\
+ " CFI_ADJUST_CFA_OFFSET (4) "\n\
+ mov.l r7,@-r15\n\
+ " CFI_ADJUST_CFA_OFFSET (4) "\n\
+ mov.l r12,@-r15\n\
+ " CFI_ADJUST_CFA_OFFSET (4) "\n\
+ movt r3 ! Save T flag.\n\
+ mov.l r3,@-r15\n\
+ " CFI_ADJUST_CFA_OFFSET (4) "\n\
+ " FGR_SAVE "\n\
+ sts.l pr,@-r15\n\
+ " CFI_ADJUST_CFA_OFFSET (4) "\n\
+ tst r0,r0\n\
+ bt 1f\n\
+ mov r0,r2\n\
+1:\n\
+ mov r0,r4 ! PLT type\n\
+ mov r2,r5 ! link map address\n\
+ sts pr,r7 ! return address\n\
+ " FUN_ADDR "\n\
+ jsr @r0 ! Call resolver.\n\
+ mov r1,r6 ! reloc offset\n\
+ lds.l @r15+,pr ! Get register content back.\n\
+ " CFI_ADJUST_CFA_OFFSET (-4) "\n\
+ " FGR_LOAD "\n\
+ mov.l @r15+,r3\n\
+ " CFI_ADJUST_CFA_OFFSET (-4) "\n\
+ shal r3 ! Lode T flag.\n\
+ mov.l @r15+,r12\n\
+ " CFI_ADJUST_CFA_OFFSET (-4) "\n\
+ mov.l @r15+,r7\n\
+ " CFI_ADJUST_CFA_OFFSET (-4) "\n\
+ mov.l @r15+,r6\n\
+ " CFI_ADJUST_CFA_OFFSET (-4) "\n\
+ mov.l @r15+,r5\n\
+ " CFI_ADJUST_CFA_OFFSET (-4) "\n\
+ mov.l @r15+,r4\n\
+ " CFI_ADJUST_CFA_OFFSET (-4) "\n\
+ mov.l @r15+,r3\n\
+ " CFI_ADJUST_CFA_OFFSET (-4) "\n\
+ jmp @r0 ! Jump to function address.\n\
+ mov.l @r15+,r2\n\
+ " CFI_ADJUST_CFA_OFFSET (-4) "\n\
+ .align 2\n\
+3:\n\
+ .long " GOTJMP (fixup) "\n\
+ " CFI_ENDPROC "\n\
+ .size _dl_runtime_resolve, .-_dl_runtime_resolve\n\
+ .size _dl_runtime_profile, .-_dl_runtime_profile\n\
+ .previous\n\
+");
+#endif
+
/* Mask identifying addresses reserved for the user program,
where the dynamic linker should not map anything. */
#define ELF_MACHINE_USER_ADDRESS_MASK 0x80000000UL
@@ -194,12 +459,6 @@ _dl_start_user:\n\
.long _rtld_local@GOT\n\
.L_dl_fini:\n\
.long _dl_fini@GOT\n\
- .type __fpscr_values,@object\n\
- .global __fpscr_values\n\
-__fpscr_values:\n\
- .long 0\n\
- .long 0x80000\n\
- .weak __fpscr_values\n\
.previous\n\
");
@@ -251,16 +510,13 @@ elf_machine_plt_value (struct link_map *map, const Elf32_Rela *reloc,
return value + reloc->r_addend;
}
-#define ARCH_LA_PLTENTER sh_gnu_pltenter
-#define ARCH_LA_PLTEXIT sh_gnu_pltexit
-
#endif /* !dl_machine_h */
+#ifdef RESOLVE
+
/* SH never uses Elf32_Rel relocations. */
#define ELF_MACHINE_NO_REL 1
-#ifdef RESOLVE_MAP
-
/* Perform the relocation specified by RELOC and SYM (which is fully resolved).
MAP is the object containing the reloc. */
@@ -323,9 +579,18 @@ elf_machine_rela (struct link_map *map, const Elf32_Rela *reloc,
else
{
const Elf32_Sym *const refsym = sym;
+#if defined USE_TLS && !defined RTLD_BOOTSTRAP
struct link_map *sym_map = RESOLVE_MAP (&sym, version, r_type);
- value = sym_map == NULL ? 0 : sym_map->l_addr + sym->st_value;
+ 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 += reloc->r_addend;
switch (r_type)
@@ -471,4 +736,4 @@ elf_machine_lazy_rel (struct link_map *map,
_dl_reloc_bad_type (map, ELF32_R_TYPE (reloc->r_info), 1);
}
-#endif /* RESOLVE_MAP */
+#endif /* RESOLVE */