diff options
Diffstat (limited to 'REORG.TODO/sysdeps/sparc/sparc64/dl-machine.h')
| -rw-r--r-- | REORG.TODO/sysdeps/sparc/sparc64/dl-machine.h | 685 |
1 files changed, 685 insertions, 0 deletions
diff --git a/REORG.TODO/sysdeps/sparc/sparc64/dl-machine.h b/REORG.TODO/sysdeps/sparc/sparc64/dl-machine.h new file mode 100644 index 0000000000..1b59d78a25 --- /dev/null +++ b/REORG.TODO/sysdeps/sparc/sparc64/dl-machine.h @@ -0,0 +1,685 @@ +/* Machine-dependent ELF dynamic relocation inline functions. Sparc64 version. + Copyright (C) 1997-2017 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, see + <http://www.gnu.org/licenses/>. */ + +#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> + +#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_COPY 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) \ + ((((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)) + +/* 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 +#define ELF_MACHINE_NO_RELA 0 + +/* 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 + (but w/o STACK_BIAS) to get at the value we want in __libc_stack_end. */ +#define DL_STACK_END(cookie) \ + ((void *) (((long) (cookie)) - (22 - 6) * 8)) + +/* 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 RTLD_GOT_ADDRESS(pic_reg, reg, symbol) \ + "sethi %gdop_hix22(" #symbol "), " #reg "\n\t" \ + "xor " #reg ", %gdop_lox10(" #symbol "), " #reg "\n\t" \ + "ldx [" #pic_reg " + " #reg "], " #reg ", %gdop(" #symbol ")\n" + +#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" \ +" add %l7, %o7, %l7\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" \ + RTLD_GOT_ADDRESS(%l7, %g5, _dl_skip_args) \ +" ld [%g5], %i0\n" \ +" brz,pt %i0, 2f\n" \ +" ldx [%sp + " __S(STACK_BIAS) " + 22*8], %i5\n" \ +" /* Find out how far to shift. */\n" \ +" sub %i5, %i0, %i5\n" \ +" sllx %i0, 3, %l6\n" \ + RTLD_GOT_ADDRESS(%l7, %l4, _dl_argv) \ +" 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:\t" RTLD_GOT_ADDRESS(%l7, %o0, _rtld_local) \ +" sllx %i5, 3, %o3\n" \ +" add %sp, " __S(STACK_BIAS) " + 23*8, %o2\n" \ +" add %o3, 8, %o3\n" \ +" mov %i5, %o1\n" \ +" add %o2, %o3, %o3\n" \ +" call _dl_init\n" \ +" ldx [%o0], %o0\n" \ +" /* Pass our finalizer function to the user in %g1. */\n" \ + RTLD_GOT_ADDRESS(%l7, %g1, _dl_fini) \ +" /* 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, int skip_ifunc) +{ + 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 (__glibc_unlikely (r_type == R_SPARC_NONE)) + return; + + if (__glibc_unlikely (r_type == R_SPARC_SIZE64)) + { + *reloc_addr = sym->st_size + reloc->r_addend; + return; + } + +#if !defined RTLD_BOOTSTRAP || !defined HAVE_Z_COMBRELOC + if (__glibc_unlikely (r_type == R_SPARC_RELATIVE)) + { +# 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) + && __builtin_expect (!skip_ifunc, 1)) + value = ((Elf64_Addr (*) (int)) value) (GLRO(dl_hwcap)); + + 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, 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 (*) (int)) value) (GLRO(dl_hwcap)); + *reloc_addr = value; + break; + case R_SPARC_JMP_IREL: + value = ((Elf64_Addr (*) (int)) value) (GLRO(dl_hwcap)); + /* 'high' is always zero, for large PLT entries the linker + emits an R_SPARC_IRELATIVE. */ +#ifdef RESOLVE_CONFLICT_FIND_MAP + sparc64_fixup_plt (NULL, reloc, reloc_addr, value, 0, 0); +#else + sparc64_fixup_plt (map, reloc, reloc_addr, value, 0, 0); +#endif + 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; +#ifndef 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_DISP64: + *reloc_addr = (value - (Elf64_Addr) reloc_addr); + break; + case R_SPARC_REGISTER: + *reloc_addr = value; + 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; + + /* ABS34 code model reloc */ + case R_SPARC_H34: + *(unsigned int *) reloc_addr = + ((*(unsigned int *)reloc_addr & 0xffc00000) | + ((value >> 12) & 0x3fffff)); + + /* 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, + int skip_ifunc) +{ + Elf64_Addr *const reloc_addr = (void *) (l_addr + reloc->r_offset); + const unsigned int r_type = ELF64_R_TYPE (reloc->r_info); + + if (__glibc_likely (r_type == R_SPARC_JMP_SLOT)) + ; + else if (r_type == R_SPARC_JMP_IREL + || r_type == R_SPARC_IRELATIVE) + { + Elf64_Addr value = map->l_addr + reloc->r_addend; + if (__glibc_likely (!skip_ifunc)) + value = ((Elf64_Addr (*) (int)) value) (GLRO(dl_hwcap)); + 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 */ |