diff options
Diffstat (limited to 'sysdeps/sparc/sparc64/dl-machine.h')
| -rw-r--r-- | sysdeps/sparc/sparc64/dl-machine.h | 683 |
1 files changed, 345 insertions, 338 deletions
diff --git a/sysdeps/sparc/sparc64/dl-machine.h b/sysdeps/sparc/sparc64/dl-machine.h index 474aa0e..314a784 100644 --- a/sysdeps/sparc/sparc64/dl-machine.h +++ b/sysdeps/sparc/sparc64/dl-machine.h @@ -1,5 +1,5 @@ /* Machine-dependent ELF dynamic relocation inline functions. Sparc64 version. - Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004 + Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc. This file is part of the GNU C Library. @@ -18,6 +18,9 @@ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. */ +#ifndef dl_machine_h +#define dl_machine_h + #define ELF_MACHINE_NAME "sparc64" #include <string.h> @@ -88,7 +91,7 @@ elf_machine_load_address (void) /* We have 4 cases to handle. And we code different code sequences for each one. I love V9 code models... */ -static inline void +static inline void __attribute__ ((always_inline)) sparc64_fixup_plt (struct link_map *map, const Elf64_Rela *reloc, Elf64_Addr *reloc_addr, Elf64_Addr value, Elf64_Addr high, int t) @@ -212,7 +215,7 @@ sparc64_fixup_plt (struct link_map *map, const Elf64_Rela *reloc, } } -static inline Elf64_Addr +static inline Elf64_Addr __attribute__ ((always_inline)) elf_machine_fixup_plt (struct link_map *map, lookup_t t, const Elf64_Rela *reloc, Elf64_Addr *reloc_addr, Elf64_Addr value) @@ -233,236 +236,21 @@ elf_machine_plt_value (struct link_map *map, const Elf64_Rela *reloc, return value; } -#ifdef RESOLVE - -/* Perform the relocation specified by RELOC and SYM (which is fully resolved). - MAP is the object containing the reloc. */ - -static inline void -elf_machine_rela (struct link_map *map, const Elf64_Rela *reloc, - const Elf64_Sym *sym, const struct r_found_version *version, - void *const reloc_addr_arg) -{ - Elf64_Addr *const reloc_addr = reloc_addr_arg; - const unsigned long int r_type = ELF64_R_TYPE_ID (reloc->r_info); - -#if !defined RTLD_BOOTSTRAP || !defined HAVE_Z_COMBRELOC - if (__builtin_expect (r_type == R_SPARC_RELATIVE, 0)) - *reloc_addr = map->l_addr + reloc->r_addend; -# ifndef RTLD_BOOTSTRAP - else if (r_type == R_SPARC_NONE) /* Who is Wilbur? */ - return; -# endif - else -#endif - { -#if !defined RTLD_BOOTSTRAP && !defined RESOLVE_CONFLICT_FIND_MAP - const Elf64_Sym *const refsym = sym; -#endif - Elf64_Addr value; -#ifndef RESOLVE_CONFLICT_FIND_MAP - if (sym->st_shndx != SHN_UNDEF && - ELF64_ST_BIND (sym->st_info) == STB_LOCAL) - value = map->l_addr; - else - { - value = RESOLVE (&sym, version, r_type); - if (sym) - value += sym->st_value; - } -#else - value = 0; -#endif - value += reloc->r_addend; /* Assume copy relocs have zero addend. */ - - switch (r_type) - { -#if !defined RTLD_BOOTSTRAP && !defined RESOLVE_CONFLICT_FIND_MAP - case R_SPARC_COPY: - if (sym == NULL) - /* This can happen in trace mode if an object could not be - found. */ - break; - if (sym->st_size > refsym->st_size - || (GLRO(dl_verbose) && sym->st_size < refsym->st_size)) - { - const char *strtab; - - strtab = (const void *) D_PTR (map, l_info[DT_STRTAB]); - _dl_error_printf ("\ -%s: Symbol `%s' has different size in shared object, consider re-linking\n", - rtld_progname ?: "<program name unknown>", - strtab + refsym->st_name); - } - memcpy (reloc_addr_arg, (void *) value, - MIN (sym->st_size, refsym->st_size)); - break; -#endif - case R_SPARC_64: - case R_SPARC_GLOB_DAT: - *reloc_addr = value; - break; -#ifndef RTLD_BOOTSTRAP - case R_SPARC_8: - *(char *) reloc_addr = value; - break; - case R_SPARC_16: - *(short *) reloc_addr = value; - break; - case R_SPARC_32: - *(unsigned int *) reloc_addr = value; - break; - case R_SPARC_DISP8: - *(char *) reloc_addr = (value - (Elf64_Addr) reloc_addr); - break; - case R_SPARC_DISP16: - *(short *) reloc_addr = (value - (Elf64_Addr) reloc_addr); - break; - case R_SPARC_DISP32: - *(unsigned int *) reloc_addr = (value - (Elf64_Addr) reloc_addr); - break; - case R_SPARC_WDISP30: - *(unsigned int *) reloc_addr = - ((*(unsigned int *)reloc_addr & 0xc0000000) | - ((value - (Elf64_Addr) reloc_addr) >> 2)); - break; - - /* MEDLOW code model relocs */ - case R_SPARC_LO10: - *(unsigned int *) reloc_addr = - ((*(unsigned int *)reloc_addr & ~0x3ff) | - (value & 0x3ff)); - break; - case R_SPARC_HI22: - *(unsigned int *) reloc_addr = - ((*(unsigned int *)reloc_addr & 0xffc00000) | - (value >> 10)); - break; - case R_SPARC_OLO10: - *(unsigned int *) reloc_addr = - ((*(unsigned int *)reloc_addr & ~0x1fff) | - (((value & 0x3ff) + ELF64_R_TYPE_DATA (reloc->r_info)) & 0x1fff)); - break; - - /* MEDMID code model relocs */ - case R_SPARC_H44: - *(unsigned int *) reloc_addr = - ((*(unsigned int *)reloc_addr & 0xffc00000) | - (value >> 22)); - break; - case R_SPARC_M44: - *(unsigned int *) reloc_addr = - ((*(unsigned int *)reloc_addr & ~0x3ff) | - ((value >> 12) & 0x3ff)); - break; - case R_SPARC_L44: - *(unsigned int *) reloc_addr = - ((*(unsigned int *)reloc_addr & ~0xfff) | - (value & 0xfff)); - break; - - /* MEDANY code model relocs */ - case R_SPARC_HH22: - *(unsigned int *) reloc_addr = - ((*(unsigned int *)reloc_addr & 0xffc00000) | - (value >> 42)); - break; - case R_SPARC_HM10: - *(unsigned int *) reloc_addr = - ((*(unsigned int *)reloc_addr & ~0x3ff) | - ((value >> 32) & 0x3ff)); - break; - case R_SPARC_LM22: - *(unsigned int *) reloc_addr = - ((*(unsigned int *)reloc_addr & 0xffc00000) | - ((value >> 10) & 0x003fffff)); - break; -#endif - case R_SPARC_JMP_SLOT: -#ifdef RESOLVE_CONFLICT_FIND_MAP - /* R_SPARC_JMP_SLOT conflicts against .plt[32768+] - relocs should be turned into R_SPARC_64 relocs - in .gnu.conflict section. - r_addend non-zero does not mean it is a .plt[32768+] - reloc, instead it is the actual address of the function - to call. */ - sparc64_fixup_plt (NULL, reloc, reloc_addr, value, 0, 0); -#else - sparc64_fixup_plt (map, reloc, reloc_addr, value, - reloc->r_addend, 0); -#endif - break; -#ifndef RTLD_BOOTSTRAP - case R_SPARC_UA16: - ((unsigned char *) reloc_addr_arg) [0] = value >> 8; - ((unsigned char *) reloc_addr_arg) [1] = value; - break; - case R_SPARC_UA32: - ((unsigned char *) reloc_addr_arg) [0] = value >> 24; - ((unsigned char *) reloc_addr_arg) [1] = value >> 16; - ((unsigned char *) reloc_addr_arg) [2] = value >> 8; - ((unsigned char *) reloc_addr_arg) [3] = value; - break; - case R_SPARC_UA64: - if (! ((long) reloc_addr_arg & 3)) - { - /* Common in .eh_frame */ - ((unsigned int *) reloc_addr_arg) [0] = value >> 32; - ((unsigned int *) reloc_addr_arg) [1] = value; - break; - } - ((unsigned char *) reloc_addr_arg) [0] = value >> 56; - ((unsigned char *) reloc_addr_arg) [1] = value >> 48; - ((unsigned char *) reloc_addr_arg) [2] = value >> 40; - ((unsigned char *) reloc_addr_arg) [3] = value >> 32; - ((unsigned char *) reloc_addr_arg) [4] = value >> 24; - ((unsigned char *) reloc_addr_arg) [5] = value >> 16; - ((unsigned char *) reloc_addr_arg) [6] = value >> 8; - ((unsigned char *) reloc_addr_arg) [7] = value; - break; -#endif -#if !defined RTLD_BOOTSTRAP || defined _NDEBUG - default: - _dl_reloc_bad_type (map, r_type, 0); - break; -#endif - } - } -} - -static inline void -elf_machine_rela_relative (Elf64_Addr l_addr, const Elf64_Rela *reloc, - void *const reloc_addr_arg) -{ - Elf64_Addr *const reloc_addr = reloc_addr_arg; - *reloc_addr = l_addr + reloc->r_addend; -} - -static inline void -elf_machine_lazy_rel (struct link_map *map, - Elf64_Addr l_addr, const Elf64_Rela *reloc) -{ - switch (ELF64_R_TYPE (reloc->r_info)) - { - case R_SPARC_NONE: - break; - case R_SPARC_JMP_SLOT: - break; - default: - _dl_reloc_bad_type (map, ELFW(R_TYPE) (reloc->r_info), 1); - break; - } -} - -#endif /* RESOLVE */ - /* ELF_RTYPE_CLASS_PLT iff TYPE describes relocation of a PLT entry, so PLT entries should not be allowed to define the value. ELF_RTYPE_CLASS_NOCOPY iff TYPE should not be allowed to resolve to one of the main executable's symbols, as for a COPY reloc. */ -#define elf_machine_type_class(type) \ +#if defined USE_TLS && (!defined RTLD_BOOTSTRAP || USE___THREAD) +# define elf_machine_type_class(type) \ + ((((type) == R_SPARC_JMP_SLOT \ + || ((type) >= R_SPARC_TLS_GD_HI22 && (type) <= R_SPARC_TLS_TPOFF64)) \ + * ELF_RTYPE_CLASS_PLT) \ + | (((type) == R_SPARC_COPY) * ELF_RTYPE_CLASS_COPY)) +#else +# define elf_machine_type_class(type) \ ((((type) == R_SPARC_JMP_SLOT) * ELF_RTYPE_CLASS_PLT) \ | (((type) == R_SPARC_COPY) * ELF_RTYPE_CLASS_COPY)) +#endif /* A reloc type used for ld.so cmdline arg lookups to reject PLT entries. */ #define ELF_MACHINE_JMP_SLOT R_SPARC_JMP_SLOT @@ -487,74 +275,67 @@ elf_machine_runtime_setup (struct link_map *l, int lazy, int profile) extern void _dl_runtime_profile_1 (void); Elf64_Addr res0_addr, res1_addr; unsigned int *plt = (void *) D_PTR (l, l_info[DT_PLTGOT]); - int i = 0; - if (! profile) - { - res0_addr = (Elf64_Addr) &_dl_runtime_resolve_0; - res1_addr = (Elf64_Addr) &_dl_runtime_resolve_1; - } - else + if (__builtin_expect(profile, 0)) { res0_addr = (Elf64_Addr) &_dl_runtime_profile_0; res1_addr = (Elf64_Addr) &_dl_runtime_profile_1; - if (_dl_name_match_p (GLRO(dl_profile), l)) + + if (GLRO(dl_profile) != NULL + && _dl_name_match_p (GLRO(dl_profile), l)) GL(dl_profile_map) = l; } + else + { + res0_addr = (Elf64_Addr) &_dl_runtime_resolve_0; + res1_addr = (Elf64_Addr) &_dl_runtime_resolve_1; + } /* PLT0 looks like: - save %sp, -192, %sp - sethi %hh(_dl_runtime_{resolve,profile}_0), %l0 - sethi %lm(_dl_runtime_{resolve,profile}_0), %l1 - or %l0, %hm(_dl_runtime_{resolve,profile}_0), %l0 - or %l1, %lo(_dl_runtime_{resolve,profile}_0), %l1 - sllx %l0, 32, %l0 - jmpl %l0 + %l1, %l6 - sethi %hi(0xffc00), %l2 + sethi %uhi(_dl_runtime_{resolve,profile}_0), %g4 + sethi %hi(_dl_runtime_{resolve,profile}_0), %g5 + or %g4, %ulo(_dl_runtime_{resolve,profile}_0), %g4 + or %g5, %lo(_dl_runtime_{resolve,profile}_0), %g5 + sllx %g4, 32, %g4 + add %g4, %g5, %g5 + jmpl %g5, %g4 + nop */ - plt[0] = 0x9de3bf40; - plt[1] = 0x21000000 | (res0_addr >> (64 - 22)); - plt[2] = 0x23000000 | ((res0_addr >> 10) & 0x003fffff); - plt[3] = 0xa0142000 | ((res0_addr >> 32) & 0x3ff); - plt[4] = 0xa2146000 | (res0_addr & 0x3ff); - plt[5] = 0xa12c3020; - plt[6] = 0xadc40011; - plt[7] = 0x250003ff; + plt[0] = 0x09000000 | (res0_addr >> (64 - 22)); + plt[1] = 0x0b000000 | ((res0_addr >> 10) & 0x003fffff); + plt[2] = 0x88112000 | ((res0_addr >> 32) & 0x3ff); + plt[3] = 0x8a116000 | (res0_addr & 0x3ff); + plt[4] = 0x89293020; + plt[5] = 0x8a010005; + plt[6] = 0x89c14000; + plt[7] = 0x01000000; /* PLT1 looks like: - save %sp, -192, %sp - sethi %hh(_dl_runtime_{resolve,profile}_1), %l0 - sethi %lm(_dl_runtime_{resolve,profile}_1), %l1 - or %l0, %hm(_dl_runtime_{resolve,profile}_1), %l0 - or %l1, %lo(_dl_runtime_{resolve,profile}_1), %l1 - sllx %l0, 32, %l0 - jmpl %l0 + %l1, %l6 - srlx %g1, 12, %o1 + sethi %uhi(_dl_runtime_{resolve,profile}_1), %g4 + sethi %hi(_dl_runtime_{resolve,profile}_1), %g5 + or %g4, %ulo(_dl_runtime_{resolve,profile}_1), %g4 + or %g5, %lo(_dl_runtime_{resolve,profile}_1), %g5 + sllx %g4, 32, %g4 + add %g4, %g5, %g5 + jmpl %g5, %g4 + nop */ - plt[8 + 0] = 0x9de3bf40; - if (__builtin_expect (((res1_addr + 4) >> 32) & 0x3ff, 0)) - i = 1; - else - res1_addr += 4; - plt[8 + 1] = 0x21000000 | (res1_addr >> (64 - 22)); - plt[8 + 2] = 0x23000000 | ((res1_addr >> 10) & 0x003fffff); - if (__builtin_expect (i, 0)) - plt[8 + 3] = 0xa0142000 | ((res1_addr >> 32) & 0x3ff); - else - plt[8 + 3] = 0xa12c3020; - plt[8 + 4] = 0xa2146000 | (res1_addr & 0x3ff); - if (__builtin_expect (i, 0)) - plt[8 + 5] = 0xa12c3020; - plt[8 + 5 + i] = 0xadc40011; - plt[8 + 6 + i] = 0x9330700c; + plt[8] = 0x09000000 | (res1_addr >> (64 - 22)); + plt[9] = 0x0b000000 | ((res1_addr >> 10) & 0x003fffff); + plt[10] = 0x88112000 | ((res1_addr >> 32) & 0x3ff); + plt[11] = 0x8a116000 | (res1_addr & 0x3ff); + plt[12] = 0x89293020; + plt[13] = 0x8a010005; + plt[14] = 0x89c14000; + plt[15] = 0x01000000; /* Now put the magic cookie at the beginning of .PLT2 Entry .PLT3 is unused by this implementation. */ - *((struct link_map **)(&plt[16 + 0])) = l; + *((struct link_map **)(&plt[16])) = l; if (__builtin_expect (l->l_info[VALIDX(DT_GNU_PRELINKED)] != NULL, 0) || __builtin_expect (l->l_info [VALIDX (DT_GNU_LIBLISTSZ)] != NULL, 0)) @@ -601,68 +382,6 @@ 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 TRAMPOLINE_TEMPLATE(tramp_name, fixup_name) \ - asm ("\n" \ -" .text\n" \ -" .globl " #tramp_name "_0\n" \ -" .type " #tramp_name "_0, @function\n" \ -" .align 32\n" \ -"\t" #tramp_name "_0:\n" \ -" ! sethi %hi(1047552), %l2 - Done in .PLT0\n" \ -" ldx [%l6 + 32 + 8], %o0\n" \ -" sub %g1, %l6, %l0\n" \ -" xor %l2, -1016, %l2\n" \ -" sethi %hi(5120), %l3 ! 160 * 32\n" \ -" add %l0, %l2, %l0\n" \ -" sethi %hi(32768), %l4\n" \ -" udivx %l0, %l3, %l3\n" \ -" sllx %l3, 2, %l1\n" \ -" add %l1, %l3, %l1\n" \ -" sllx %l1, 10, %l2\n" \ -" sub %l4, 4, %l4 ! No thanks to Sun for not obeying their own ABI\n" \ -" sllx %l1, 5, %l1\n" \ -" sub %l0, %l2, %l0\n" \ -" udivx %l0, 24, %l0\n" \ -" add %l0, %l4, %l0\n" \ -" add %l1, %l0, %l1\n" \ -" add %l1, %l1, %l0\n" \ -" add %l0, %l1, %l0\n" \ -" mov %i7, %o2\n" \ -" call " #fixup_name "\n" \ -" sllx %l0, 3, %o1\n" \ -" jmp %o0\n" \ -" restore\n" \ -" .size " #tramp_name "_0, . - " #tramp_name "_0\n" \ -"\n" \ -" .globl " #tramp_name "_1\n" \ -" .type " #tramp_name "_1, @function\n" \ -" ! tramp_name_1 + 4 needs to be .align 32\n" \ -"\t" #tramp_name "_1:\n" \ -" sub %l6, 4, %l6\n" \ -" ! srlx %g1, 12, %o1 - Done in .PLT1\n" \ -" ldx [%l6 + 12], %o0\n" \ -" add %o1, %o1, %o3\n" \ -" sub %o1, 96, %o1 ! No thanks to Sun for not obeying their own ABI\n" \ -" mov %i7, %o2\n" \ -" call " #fixup_name "\n" \ -" add %o1, %o3, %o1\n" \ -" jmp %o0\n" \ -" restore\n" \ -" .size " #tramp_name "_1, . - " #tramp_name "_1\n" \ -" .previous\n"); - -#ifndef PROF -#define ELF_MACHINE_RUNTIME_TRAMPOLINE \ - TRAMPOLINE_TEMPLATE (_dl_runtime_resolve, fixup); \ - TRAMPOLINE_TEMPLATE (_dl_runtime_profile, profile_fixup); -#else -#define ELF_MACHINE_RUNTIME_TRAMPOLINE \ - TRAMPOLINE_TEMPLATE (_dl_runtime_resolve, fixup); \ - TRAMPOLINE_TEMPLATE (_dl_runtime_profile, fixup); -#endif - /* The PLT uses Elf64_Rela relocs. */ #define elf_machine_relplt elf_machine_rela @@ -763,3 +482,291 @@ elf_machine_runtime_setup (struct link_map *l, int lazy, int profile) " add %sp, 6*8, %sp\n" \ " .size _dl_start_user, . - _dl_start_user\n" \ " .previous\n"); + +#endif /* dl_machine_h */ + +#define ARCH_LA_PLTENTER sparc64_gnu_pltenter +#define ARCH_LA_PLTEXIT sparc64_gnu_pltexit + +#ifdef RESOLVE_MAP + +/* Perform the relocation specified by RELOC and SYM (which is fully resolved). + MAP is the object containing the reloc. */ + +auto inline void +__attribute__ ((always_inline)) +elf_machine_rela (struct link_map *map, const Elf64_Rela *reloc, + const Elf64_Sym *sym, const struct r_found_version *version, + void *const reloc_addr_arg) +{ + Elf64_Addr *const reloc_addr = reloc_addr_arg; +#if !defined RTLD_BOOTSTRAP && !defined RESOLVE_CONFLICT_FIND_MAP + const Elf64_Sym *const refsym = sym; +#endif + Elf64_Addr value; + const unsigned long int r_type = ELF64_R_TYPE_ID (reloc->r_info); +#if !defined RESOLVE_CONFLICT_FIND_MAP + struct link_map *sym_map = NULL; +#endif + +#if !defined RTLD_BOOTSTRAP && !defined HAVE_Z_COMBRELOC + /* This is defined in rtld.c, but nowhere in the static libc.a; make the + reference weak so static programs can still link. This declaration + cannot be done when compiling rtld.c (i.e. #ifdef RTLD_BOOTSTRAP) + because rtld.c contains the common defn for _dl_rtld_map, which is + incompatible with a weak decl in the same file. */ + weak_extern (_dl_rtld_map); +#endif + + if (__builtin_expect (r_type == R_SPARC_NONE, 0)) + return; + +#if !defined RTLD_BOOTSTRAP || !defined HAVE_Z_COMBRELOC + if (__builtin_expect (r_type == R_SPARC_RELATIVE, 0)) + { +# if !defined RTLD_BOOTSTRAP && !defined HAVE_Z_COMBRELOC + if (map != &_dl_rtld_map) /* Already done in rtld itself. */ +# endif + *reloc_addr += map->l_addr + reloc->r_addend; + return; + } +#endif + +#ifndef RESOLVE_CONFLICT_FIND_MAP + if (__builtin_expect (ELF64_ST_BIND (sym->st_info) == STB_LOCAL, 0) + && sym->st_shndx != SHN_UNDEF) + { + value = map->l_addr; + } + else + { + sym_map = RESOLVE_MAP (&sym, version, r_type); + value = sym_map == NULL ? 0 : sym_map->l_addr + sym->st_value; + } +#else + value = 0; +#endif + + value += reloc->r_addend; /* Assume copy relocs have zero addend. */ + + switch (r_type) + { +#if !defined RTLD_BOOTSTRAP && !defined RESOLVE_CONFLICT_FIND_MAP + case R_SPARC_COPY: + if (sym == NULL) + /* This can happen in trace mode if an object could not be + found. */ + break; + if (sym->st_size > refsym->st_size + || (GLRO(dl_verbose) && sym->st_size < refsym->st_size)) + { + const char *strtab; + + strtab = (const void *) D_PTR (map, l_info[DT_STRTAB]); + _dl_error_printf ("\ +%s: Symbol `%s' has different size in shared object, consider re-linking\n", + rtld_progname ?: "<program name unknown>", + strtab + refsym->st_name); + } + memcpy (reloc_addr_arg, (void *) value, + MIN (sym->st_size, refsym->st_size)); + break; +#endif + case R_SPARC_64: + case R_SPARC_GLOB_DAT: + *reloc_addr = value; + break; + case R_SPARC_JMP_SLOT: +#ifdef RESOLVE_CONFLICT_FIND_MAP + /* R_SPARC_JMP_SLOT conflicts against .plt[32768+] + relocs should be turned into R_SPARC_64 relocs + in .gnu.conflict section. + r_addend non-zero does not mean it is a .plt[32768+] + reloc, instead it is the actual address of the function + to call. */ + sparc64_fixup_plt (NULL, reloc, reloc_addr, value, 0, 0); +#else + sparc64_fixup_plt (map, reloc, reloc_addr, value, reloc->r_addend, 0); +#endif + break; +#if defined USE_TLS && (!defined RTLD_BOOTSTRAP || USE___THREAD) \ + && !defined RESOLVE_CONFLICT_FIND_MAP + case R_SPARC_TLS_DTPMOD64: + /* Get the information from the link map returned by the + resolv function. */ + if (sym_map != NULL) + *reloc_addr = sym_map->l_tls_modid; + break; + case R_SPARC_TLS_DTPOFF64: + /* During relocation all TLS symbols are defined and used. + Therefore the offset is already correct. */ + *reloc_addr = (sym == NULL ? 0 : sym->st_value) + reloc->r_addend; + break; + case R_SPARC_TLS_TPOFF64: + /* The offset is negative, forward from the thread pointer. */ + /* We know the offset of object the symbol is contained in. + It is a negative value which will be added to the + thread pointer. */ + if (sym != NULL) + { + CHECK_STATIC_TLS (map, sym_map); + *reloc_addr = sym->st_value - sym_map->l_tls_offset + + reloc->r_addend; + } + break; +# ifndef RTLD_BOOTSTRAP + case R_SPARC_TLS_LE_HIX22: + case R_SPARC_TLS_LE_LOX10: + if (sym != NULL) + { + CHECK_STATIC_TLS (map, sym_map); + value = sym->st_value - sym_map->l_tls_offset + + reloc->r_addend; + if (r_type == R_SPARC_TLS_LE_HIX22) + *reloc_addr = (*reloc_addr & 0xffc00000) + | (((~value) >> 10) & 0x3fffff); + else + *reloc_addr = (*reloc_addr & 0xffffe000) | (value & 0x3ff) + | 0x1c00; + } + break; +# endif +#endif +#ifndef RTLD_BOOTSTRAP + case R_SPARC_8: + *(char *) reloc_addr = value; + break; + case R_SPARC_16: + *(short *) reloc_addr = value; + break; + case R_SPARC_32: + *(unsigned int *) reloc_addr = value; + break; + case R_SPARC_DISP8: + *(char *) reloc_addr = (value - (Elf64_Addr) reloc_addr); + break; + case R_SPARC_DISP16: + *(short *) reloc_addr = (value - (Elf64_Addr) reloc_addr); + break; + case R_SPARC_DISP32: + *(unsigned int *) reloc_addr = (value - (Elf64_Addr) reloc_addr); + break; + case R_SPARC_WDISP30: + *(unsigned int *) reloc_addr = + ((*(unsigned int *)reloc_addr & 0xc0000000) | + (((value - (Elf64_Addr) reloc_addr) >> 2) & 0x3fffffff)); + break; + + /* MEDLOW code model relocs */ + case R_SPARC_LO10: + *(unsigned int *) reloc_addr = + ((*(unsigned int *)reloc_addr & ~0x3ff) | + (value & 0x3ff)); + break; + case R_SPARC_HI22: + *(unsigned int *) reloc_addr = + ((*(unsigned int *)reloc_addr & 0xffc00000) | + ((value >> 10) & 0x3fffff)); + break; + case R_SPARC_OLO10: + *(unsigned int *) reloc_addr = + ((*(unsigned int *)reloc_addr & ~0x1fff) | + (((value & 0x3ff) + ELF64_R_TYPE_DATA (reloc->r_info)) & 0x1fff)); + break; + + /* MEDMID code model relocs */ + case R_SPARC_H44: + *(unsigned int *) reloc_addr = + ((*(unsigned int *)reloc_addr & 0xffc00000) | + ((value >> 22) & 0x3fffff)); + break; + case R_SPARC_M44: + *(unsigned int *) reloc_addr = + ((*(unsigned int *)reloc_addr & ~0x3ff) | + ((value >> 12) & 0x3ff)); + break; + case R_SPARC_L44: + *(unsigned int *) reloc_addr = + ((*(unsigned int *)reloc_addr & ~0xfff) | + (value & 0xfff)); + break; + + /* MEDANY code model relocs */ + case R_SPARC_HH22: + *(unsigned int *) reloc_addr = + ((*(unsigned int *)reloc_addr & 0xffc00000) | + (value >> 42)); + break; + case R_SPARC_HM10: + *(unsigned int *) reloc_addr = + ((*(unsigned int *)reloc_addr & ~0x3ff) | + ((value >> 32) & 0x3ff)); + break; + case R_SPARC_LM22: + *(unsigned int *) reloc_addr = + ((*(unsigned int *)reloc_addr & 0xffc00000) | + ((value >> 10) & 0x003fffff)); + break; + case R_SPARC_UA16: + ((unsigned char *) reloc_addr_arg) [0] = value >> 8; + ((unsigned char *) reloc_addr_arg) [1] = value; + break; + case R_SPARC_UA32: + ((unsigned char *) reloc_addr_arg) [0] = value >> 24; + ((unsigned char *) reloc_addr_arg) [1] = value >> 16; + ((unsigned char *) reloc_addr_arg) [2] = value >> 8; + ((unsigned char *) reloc_addr_arg) [3] = value; + break; + case R_SPARC_UA64: + if (! ((long) reloc_addr_arg & 3)) + { + /* Common in .eh_frame */ + ((unsigned int *) reloc_addr_arg) [0] = value >> 32; + ((unsigned int *) reloc_addr_arg) [1] = value; + break; + } + ((unsigned char *) reloc_addr_arg) [0] = value >> 56; + ((unsigned char *) reloc_addr_arg) [1] = value >> 48; + ((unsigned char *) reloc_addr_arg) [2] = value >> 40; + ((unsigned char *) reloc_addr_arg) [3] = value >> 32; + ((unsigned char *) reloc_addr_arg) [4] = value >> 24; + ((unsigned char *) reloc_addr_arg) [5] = value >> 16; + ((unsigned char *) reloc_addr_arg) [6] = value >> 8; + ((unsigned char *) reloc_addr_arg) [7] = value; + break; +#endif +#if !defined RTLD_BOOTSTRAP || defined _NDEBUG + default: + _dl_reloc_bad_type (map, r_type, 0); + break; +#endif + } +} + +auto inline void +__attribute__ ((always_inline)) +elf_machine_rela_relative (Elf64_Addr l_addr, const Elf64_Rela *reloc, + void *const reloc_addr_arg) +{ + Elf64_Addr *const reloc_addr = reloc_addr_arg; + *reloc_addr = l_addr + reloc->r_addend; +} + +auto inline void +__attribute__ ((always_inline)) +elf_machine_lazy_rel (struct link_map *map, + Elf64_Addr l_addr, const Elf64_Rela *reloc) +{ + switch (ELF64_R_TYPE (reloc->r_info)) + { + case R_SPARC_NONE: + break; + case R_SPARC_JMP_SLOT: + break; + default: + _dl_reloc_bad_type (map, ELFW(R_TYPE) (reloc->r_info), 1); + break; + } +} + +#endif /* RESOLVE_MAP */ |