| /* Machine-dependent ELF dynamic relocation inline functions. Sparc64 version. |
| Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, |
| 2009, 2010 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 dl_machine_h |
| #define dl_machine_h |
| |
| #define ELF_MACHINE_NAME "sparc64" |
| |
| #include <string.h> |
| #include <sys/param.h> |
| #include <ldsodefs.h> |
| #include <sysdep.h> |
| #include <dl-plt.h> |
| |
| #ifndef VALIDX |
| # define VALIDX(tag) (DT_NUM + DT_THISPROCNUM + DT_VERSIONTAGNUM \ |
| + DT_EXTRANUM + DT_VALTAGIDX (tag)) |
| #endif |
| |
| #define ELF64_R_TYPE_ID(info) ((info) & 0xff) |
| #define ELF64_R_TYPE_DATA(info) ((info) >> 8) |
| |
| /* Return nonzero iff ELF header is compatible with the running host. */ |
| static inline int |
| elf_machine_matches_host (const Elf64_Ehdr *ehdr) |
| { |
| return ehdr->e_machine == EM_SPARCV9; |
| } |
| |
| /* We have to do this because elf_machine_{dynamic,load_address} can be |
| invoked from functions that have no GOT references, and thus the compiler |
| has no obligation to load the PIC register. */ |
| #define LOAD_PIC_REG(PIC_REG) \ |
| do { Elf64_Addr tmp; \ |
| __asm("sethi %%hi(_GLOBAL_OFFSET_TABLE_-4), %1\n\t" \ |
| "rd %%pc, %0\n\t" \ |
| "add %1, %%lo(_GLOBAL_OFFSET_TABLE_+4), %1\n\t" \ |
| "add %0, %1, %0" \ |
| : "=r" (PIC_REG), "=r" (tmp)); \ |
| } while (0) |
| |
| /* Return the link-time address of _DYNAMIC. Conveniently, this is the |
| first element of the GOT. This must be inlined in a function which |
| uses global data. */ |
| static inline Elf64_Addr |
| elf_machine_dynamic (void) |
| { |
| register Elf64_Addr *elf_pic_register __asm__("%l7"); |
| |
| LOAD_PIC_REG (elf_pic_register); |
| |
| return *elf_pic_register; |
| } |
| |
| /* Return the run-time load address of the shared object. */ |
| static inline Elf64_Addr |
| elf_machine_load_address (void) |
| { |
| register Elf32_Addr *pc __asm ("%o7"); |
| register Elf64_Addr *got __asm ("%l7"); |
| |
| __asm ("sethi %%hi(_GLOBAL_OFFSET_TABLE_-4), %1\n\t" |
| "call 1f\n\t" |
| " add %1, %%lo(_GLOBAL_OFFSET_TABLE_+4), %1\n\t" |
| "call _DYNAMIC\n\t" |
| "call _GLOBAL_OFFSET_TABLE_\n" |
| "1:\tadd %1, %0, %1\n\t" : "=r" (pc), "=r" (got)); |
| |
| /* got is now l_addr + _GLOBAL_OFFSET_TABLE_ |
| *got is _DYNAMIC |
| pc[2]*4 is l_addr + _DYNAMIC - (long)pc - 8 |
| pc[3]*4 is l_addr + _GLOBAL_OFFSET_TABLE_ - (long)pc - 12 */ |
| return (Elf64_Addr) got - *got + (Elf32_Sword) ((pc[2] - pc[3]) * 4) - 4; |
| } |
| |
| 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) |
| { |
| sparc64_fixup_plt (map, reloc, reloc_addr, value + reloc->r_addend, |
| reloc->r_addend, 1); |
| return value; |
| } |
| |
| /* Return the final value of a plt relocation. */ |
| static inline Elf64_Addr |
| elf_machine_plt_value (struct link_map *map, const Elf64_Rela *reloc, |
| Elf64_Addr value) |
| { |
| /* Don't add addend here, but in elf_machine_fixup_plt instead. |
| value + reloc->r_addend is the value which should actually be |
| stored into .plt data slot. */ |
| return value; |
| } |
| |
| /* 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. */ |
| #if !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 |
| |
| /* The SPARC never uses Elf64_Rel relocations. */ |
| #define ELF_MACHINE_NO_REL 1 |
| |
| /* The SPARC overlaps DT_RELA and DT_PLTREL. */ |
| #define ELF_MACHINE_PLTREL_OVERLAP 1 |
| |
| /* Set up the loaded object described by L so its unrelocated PLT |
| entries will jump to the on-demand fixup code in dl-runtime.c. */ |
| |
| static inline int |
| elf_machine_runtime_setup (struct link_map *l, int lazy, int profile) |
| { |
| if (l->l_info[DT_JMPREL] && lazy) |
| { |
| extern void _dl_runtime_resolve_0 (void); |
| extern void _dl_runtime_resolve_1 (void); |
| extern void _dl_runtime_profile_0 (void); |
| extern void _dl_runtime_profile_1 (void); |
| Elf64_Addr res0_addr, res1_addr; |
| unsigned int *plt = (void *) D_PTR (l, l_info[DT_PLTGOT]); |
| |
| if (__builtin_expect(profile, 0)) |
| { |
| res0_addr = (Elf64_Addr) &_dl_runtime_profile_0; |
| res1_addr = (Elf64_Addr) &_dl_runtime_profile_1; |
| |
| 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: |
| |
| 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] = 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: |
| |
| 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] = 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])) = l; |
| |
| if (__builtin_expect (l->l_info[VALIDX(DT_GNU_PRELINKED)] != NULL, 0) |
| || __builtin_expect (l->l_info [VALIDX (DT_GNU_LIBLISTSZ)] != NULL, 0)) |
| { |
| /* Need to reinitialize .plt to undo prelinking. */ |
| Elf64_Rela *rela = (Elf64_Rela *) D_PTR (l, l_info[DT_JMPREL]); |
| Elf64_Rela *relaend |
| = (Elf64_Rela *) ((char *) rela |
| + l->l_info[DT_PLTRELSZ]->d_un.d_val); |
| |
| /* prelink must ensure there are no R_SPARC_NONE relocs left |
| in .rela.plt. */ |
| while (rela < relaend) |
| { |
| if (__builtin_expect (rela->r_addend, 0) != 0) |
| { |
| Elf64_Addr slot = ((rela->r_offset + l->l_addr + 0x400 |
| - (Elf64_Addr) plt) |
| / 0x1400) * 0x1400 |
| + (Elf64_Addr) plt - 0x400; |
| /* ldx [%o7 + X], %g1 */ |
| unsigned int first_ldx = *(unsigned int *)(slot + 12); |
| Elf64_Addr ptr = slot + (first_ldx & 0xfff) + 4; |
| |
| *(Elf64_Addr *) (rela->r_offset + l->l_addr) |
| = (Elf64_Addr) plt |
| - (slot + ((rela->r_offset + l->l_addr - ptr) / 8) * 24 |
| + 4); |
| ++rela; |
| continue; |
| } |
| |
| *(unsigned int *) (rela->r_offset + l->l_addr) |
| = 0x03000000 | (rela->r_offset + l->l_addr - (Elf64_Addr) plt); |
| *(unsigned int *) (rela->r_offset + l->l_addr + 4) |
| = 0x30680000 | ((((Elf64_Addr) plt + 32 - rela->r_offset |
| - l->l_addr - 4) >> 2) & 0x7ffff); |
| __asm __volatile ("flush %0" : : "r" (rela->r_offset |
| + l->l_addr)); |
| __asm __volatile ("flush %0+4" : : "r" (rela->r_offset |
| + l->l_addr)); |
| ++rela; |
| } |
| } |
| } |
| |
| return lazy; |
| } |
| |
| /* The PLT uses Elf64_Rela relocs. */ |
| #define elf_machine_relplt elf_machine_rela |
| |
| /* Undo the sub %sp, 6*8, %sp; add %sp, STACK_BIAS + 22*8, %o0 below |
| to get at the value we want in __libc_stack_end. */ |
| #define DL_STACK_END(cookie) \ |
| ((void *) (((long) (cookie)) - (22 - 6) * 8 - STACK_BIAS)) |
| |
| /* Initial entry point code for the dynamic linker. |
| The C function `_dl_start' is the real entry point; |
| its return value is the user program's entry point. */ |
| |
| #define __S1(x) #x |
| #define __S(x) __S1(x) |
| |
| #define RTLD_START __asm__ ( "\n" \ |
| " .text\n" \ |
| " .global _start\n" \ |
| " .type _start, @function\n" \ |
| " .align 32\n" \ |
| "_start:\n" \ |
| " /* Make room for functions to drop their arguments on the stack. */\n" \ |
| " sub %sp, 6*8, %sp\n" \ |
| " /* Pass pointer to argument block to _dl_start. */\n" \ |
| " call _dl_start\n" \ |
| " add %sp," __S(STACK_BIAS) "+22*8,%o0\n" \ |
| " /* FALLTHRU */\n" \ |
| " .size _start, .-_start\n" \ |
| "\n" \ |
| " .global _dl_start_user\n" \ |
| " .type _dl_start_user, @function\n" \ |
| "_dl_start_user:\n" \ |
| " /* Load the GOT register. */\n" \ |
| "1: call 11f\n" \ |
| " sethi %hi(_GLOBAL_OFFSET_TABLE_-(1b-.)), %l7\n" \ |
| "11: or %l7, %lo(_GLOBAL_OFFSET_TABLE_-(1b-.)), %l7\n" \ |
| " sethi %hi(_dl_skip_args), %g5\n" \ |
| " add %l7, %o7, %l7\n" \ |
| " or %g5, %lo(_dl_skip_args), %g5\n" \ |
| " /* Save the user entry point address in %l0. */\n" \ |
| " mov %o0, %l0\n" \ |
| " /* See if we were run as a command with the executable file name as an\n" \ |
| " extra leading argument. If so, we must shift things around since we\n" \ |
| " must keep the stack doubleword aligned. */\n" \ |
| " ldx [%l7 + %g5], %i0\n" \ |
| " ld [%i0], %i0\n" \ |
| " brz,pt %i0, 2f\n" \ |
| " ldx [%sp + " __S(STACK_BIAS) " + 22*8], %i5\n" \ |
| " /* Find out how far to shift. */\n" \ |
| " sethi %hi(_dl_argv), %l4\n" \ |
| " sub %i5, %i0, %i5\n" \ |
| " or %l4, %lo(_dl_argv), %l4\n" \ |
| " sllx %i0, 3, %l6\n" \ |
| " ldx [%l7 + %l4], %l4\n" \ |
| " stx %i5, [%sp + " __S(STACK_BIAS) " + 22*8]\n" \ |
| " add %sp, " __S(STACK_BIAS) " + 23*8, %i1\n" \ |
| " add %i1, %l6, %i2\n" \ |
| " ldx [%l4], %l5\n" \ |
| " /* Copy down argv. */\n" \ |
| "12: ldx [%i2], %i3\n" \ |
| " add %i2, 8, %i2\n" \ |
| " stx %i3, [%i1]\n" \ |
| " brnz,pt %i3, 12b\n" \ |
| " add %i1, 8, %i1\n" \ |
| " sub %l5, %l6, %l5\n" \ |
| " /* Copy down envp. */\n" \ |
| "13: ldx [%i2], %i3\n" \ |
| " add %i2, 8, %i2\n" \ |
| " stx %i3, [%i1]\n" \ |
| " brnz,pt %i3, 13b\n" \ |
| " add %i1, 8, %i1\n" \ |
| " /* Copy down auxiliary table. */\n" \ |
| "14: ldx [%i2], %i3\n" \ |
| " ldx [%i2 + 8], %i4\n" \ |
| " add %i2, 16, %i2\n" \ |
| " stx %i3, [%i1]\n" \ |
| " stx %i4, [%i1 + 8]\n" \ |
| " brnz,pt %i3, 14b\n" \ |
| " add %i1, 16, %i1\n" \ |
| " stx %l5, [%l4]\n" \ |
| " /* %o0 = _dl_loaded, %o1 = argc, %o2 = argv, %o3 = envp. */\n" \ |
| "2: sethi %hi(_rtld_local), %o0\n" \ |
| " add %sp, " __S(STACK_BIAS) " + 23*8, %o2\n" \ |
| " orcc %o0, %lo(_rtld_local), %o0\n" \ |
| " sllx %i5, 3, %o3\n" \ |
| " ldx [%l7 + %o0], %o0\n" \ |
| " add %o3, 8, %o3\n" \ |
| " mov %i5, %o1\n" \ |
| " add %o2, %o3, %o3\n" \ |
| " call _dl_init_internal\n" \ |
| " ldx [%o0], %o0\n" \ |
| " /* Pass our finalizer function to the user in %g1. */\n" \ |
| " sethi %hi(_dl_fini), %g1\n" \ |
| " or %g1, %lo(_dl_fini), %g1\n" \ |
| " ldx [%l7 + %g1], %g1\n" \ |
| " /* Jump to the user's entry point and deallocate the extra stack we got. */\n" \ |
| " jmp %l0\n" \ |
| " 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. */ |
| |
| if (sym != NULL |
| && __builtin_expect (ELFW(ST_TYPE) (sym->st_info) == STT_GNU_IFUNC, 0) |
| && __builtin_expect (sym->st_shndx != SHN_UNDEF, 1)) |
| value = ((Elf64_Addr (*) (void)) value) (); |
| |
| 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_IRELATIVE: |
| value = ((Elf64_Addr (*) (void)) value) (); |
| *reloc_addr = value; |
| break; |
| case R_SPARC_JMP_IREL: |
| value = ((Elf64_Addr (*) (void)) value) (); |
| /* Fall thru */ |
| 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 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) |
| *(unsigned int *)reloc_addr = |
| ((*(unsigned int *)reloc_addr & 0xffc00000) |
| | (((~value) >> 10) & 0x3fffff)); |
| else |
| *(unsigned int *)reloc_addr = |
| ((*(unsigned int *)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) |
| { |
| Elf64_Addr *const reloc_addr = (void *) (l_addr + reloc->r_offset); |
| const unsigned int r_type = ELF64_R_TYPE (reloc->r_info); |
| |
| if (__builtin_expect (r_type == R_SPARC_JMP_SLOT, 1)) |
| ; |
| else if (r_type == R_SPARC_JMP_IREL |
| || r_type == R_SPARC_IRELATIVE) |
| { |
| Elf64_Addr value = map->l_addr + reloc->r_addend; |
| value = ((Elf64_Addr (*) (void)) value) (); |
| if (r_type == R_SPARC_JMP_IREL) |
| { |
| /* 'high' is always zero, for large PLT entries the linker |
| emits an R_SPARC_IRELATIVE. */ |
| sparc64_fixup_plt (map, reloc, reloc_addr, value, 0, 1); |
| } |
| else |
| *reloc_addr = value; |
| } |
| else if (r_type == R_SPARC_NONE) |
| ; |
| else |
| _dl_reloc_bad_type (map, r_type, 1); |
| } |
| |
| #endif /* RESOLVE_MAP */ |
