* SUCH DAMAGE.
*/
-#if defined (__SUPPORT_LD_DEBUG__)
-static const char *_dl_reltypes_tab[] =
-{
- [0] "R_MIPS_NONE", "R_MIPS_16", "R_MIPS_32",
- [3] "R_MIPS_REL32", "R_MIPS_26", "R_MIPS_HI16",
- [6] "R_MIPS_LO16", "R_MIPS_GPREL16", "R_MIPS_LITERAL",
- [9] "R_MIPS_GOT16", "R_MIPS_PC16", "R_MIPS_CALL16",
- [12] "R_MIPS_GPREL32",
- [16] "R_MIPS_SHIFT5", "R_MIPS_SHIFT6", "R_MIPS_64",
- [19] "R_MIPS_GOT_DISP", "R_MIPS_GOT_PAGE", "R_MIPS_GOT_OFST",
- [22] "R_MIPS_GOT_HI16", "R_MIPS_GOT_LO16", "R_MIPS_SUB",
- [25] "R_MIPS_INSERT_A", "R_MIPS_INSERT_B", "R_MIPS_DELETE",
- [28] "R_MIPS_HIGHER", "R_MIPS_HIGHEST", "R_MIPS_CALL_HI16",
- [31] "R_MIPS_CALL_LO16", "R_MIPS_SCN_DISP", "R_MIPS_REL16",
- [34] "R_MIPS_ADD_IMMEDIATE", "R_MIPS_PJUMP", "R_MIPS_RELGOT",
- [37] "R_MIPS_JALR",
-};
-
-static const char *
-_dl_reltypes(int type)
-{
- static char buf[22];
- const char *str;
-
- if (type >= (int)(sizeof (_dl_reltypes_tab)/sizeof(_dl_reltypes_tab[0])) ||
- NULL == (str = _dl_reltypes_tab[type]))
- {
- str =_dl_simple_ltoa( buf, (unsigned long)(type));
- }
- return str;
-}
-
-static
-void debug_sym(Elf32_Sym *symtab,char *strtab,int symtab_index)
-{
- if(_dl_debug_symbols)
- {
- if(symtab_index){
- _dl_dprintf(_dl_debug_file, "\n%s\n\tvalue=%x\tsize=%x\tinfo=%x\tother=%x\tshndx=%x",
- strtab + symtab[symtab_index].st_name,
- symtab[symtab_index].st_value,
- symtab[symtab_index].st_size,
- symtab[symtab_index].st_info,
- symtab[symtab_index].st_other,
- symtab[symtab_index].st_shndx);
- }
- }
-}
-
-static void debug_reloc(Elf32_Sym *symtab,char *strtab, ELF_RELOC *rpnt)
-{
- if(_dl_debug_reloc)
- {
- int symtab_index;
- const char *sym;
- symtab_index = ELF32_R_SYM(rpnt->r_info);
- sym = symtab_index ? strtab + symtab[symtab_index].st_name : "sym=0x0";
-
- if(_dl_debug_symbols)
- _dl_dprintf(_dl_debug_file, "\n\t");
- else
- _dl_dprintf(_dl_debug_file, "\n%s\n\t", sym);
-#ifdef ELF_USES_RELOCA
- _dl_dprintf(_dl_debug_file, "%s\toffset=%x\taddend=%x",
- _dl_reltypes(ELF32_R_TYPE(rpnt->r_info)),
- rpnt->r_offset,
- rpnt->r_addend);
-#else
- _dl_dprintf(_dl_debug_file, "%s\toffset=%x\n",
- _dl_reltypes(ELF32_R_TYPE(rpnt->r_info)),
- rpnt->r_offset);
-#endif
- }
-}
-#endif
+#include "ldso.h"
-extern int _dl_linux_resolve(void);
+extern int _dl_runtime_resolve(void);
+extern int _dl_runtime_pltresolve(void);
#define OFFSET_GP_GOT 0x7ff0
-unsigned long _dl_linux_resolver(unsigned long sym_index,
+unsigned long __dl_runtime_resolve(unsigned long sym_index,
unsigned long old_gpreg)
{
unsigned long *got = (unsigned long *) (old_gpreg - OFFSET_GP_GOT);
struct elf_resolve *tpnt = (struct elf_resolve *) got[1];
- Elf32_Sym *sym;
+ ElfW(Sym) *sym;
char *strtab;
unsigned long local_gotno;
unsigned long gotsym;
char **got_addr;
char *symname;
- gotsym = tpnt->mips_gotsym;
- local_gotno = tpnt->mips_local_gotno;
+ gotsym = tpnt->dynamic_info[DT_MIPS_GOTSYM_IDX];
+ local_gotno = tpnt->dynamic_info[DT_MIPS_LOCAL_GOTNO_IDX];
- sym = ((Elf32_Sym *) (tpnt->dynamic_info[DT_SYMTAB] + tpnt->loadaddr)) + sym_index;
- strtab = (char *) (tpnt->dynamic_info[DT_STRTAB] + tpnt->loadaddr);
+ sym = ((ElfW(Sym) *) tpnt->dynamic_info[DT_SYMTAB]) + sym_index;
+ strtab = (char *) tpnt->dynamic_info[DT_STRTAB];
symname = strtab + sym->st_name;
- new_addr = (unsigned long) _dl_find_hash(strtab + sym->st_name,
- tpnt->symbol_scope, tpnt, resolver);
-
+ new_addr = (unsigned long) _dl_find_hash(symname,
+ tpnt->symbol_scope, tpnt, ELF_RTYPE_CLASS_PLT, NULL);
+ if (unlikely(!new_addr)) {
+ _dl_dprintf (2, "%s: can't resolve symbol '%s'\n",
+ _dl_progname, symname);
+ _dl_exit (1);
+ }
+
/* Address of jump instruction to fix up */
- instr_addr = (unsigned long) (got + local_gotno + sym_index - gotsym);
+ instr_addr = (unsigned long) (got + local_gotno + sym_index - gotsym);
got_addr = (char **) instr_addr;
-
+
#if defined (__SUPPORT_LD_DEBUG__)
if (_dl_debug_bindings)
{
_dl_dprintf(_dl_debug_file, "\nresolve function: %s", symname);
- if(_dl_debug_detail) _dl_dprintf(_dl_debug_file,
+ if (_dl_debug_detail) _dl_dprintf(_dl_debug_file,
"\n\tpatched %x ==> %x @ %x\n", *got_addr, new_addr, got_addr);
}
if (!_dl_debug_nofixups) {
return new_addr;
}
-void _dl_parse_lazy_relocation_information(struct elf_resolve *tpnt,
- unsigned long rel_addr, unsigned long rel_size, int type)
+unsigned long
+__dl_runtime_pltresolve(struct elf_resolve *tpnt, int reloc_entry)
{
- /* Nothing to do */
- return;
+ ELF_RELOC *this_reloc;
+ char *strtab;
+ Elf32_Sym *symtab;
+ int symtab_index;
+ char *rel_addr;
+ char *new_addr;
+ char **got_addr;
+ unsigned long instr_addr;
+ char *symname;
+
+ rel_addr = (char *)tpnt->dynamic_info[DT_JMPREL];
+ this_reloc = (ELF_RELOC *)(intptr_t)(rel_addr + reloc_entry);
+ symtab_index = ELF32_R_SYM(this_reloc->r_info);
+
+ symtab = (Elf32_Sym *)(intptr_t)tpnt->dynamic_info[DT_SYMTAB];
+ strtab = (char *)tpnt->dynamic_info[DT_STRTAB];
+ symname = strtab + symtab[symtab_index].st_name;
+
+ /* Address of the jump instruction to fix up. */
+ instr_addr = ((unsigned long)this_reloc->r_offset +
+ (unsigned long)tpnt->loadaddr);
+ got_addr = (char **)instr_addr;
+
+ /* Get the address of the GOT entry. */
+ new_addr = _dl_find_hash(symname, tpnt->symbol_scope, tpnt, ELF_RTYPE_CLASS_PLT, NULL);
+ if (unlikely(!new_addr)) {
+ _dl_dprintf(2, "%s: can't resolve symbol '%s' in lib '%s'.\n", _dl_progname, symname, tpnt->libname);
+ _dl_exit(1);
+ }
+
+#if defined (__SUPPORT_LD_DEBUG__)
+ if ((unsigned long)got_addr < 0x40000000) {
+ if (_dl_debug_bindings) {
+ _dl_dprintf(_dl_debug_file, "\nresolve function: %s", symname);
+ if (_dl_debug_detail)
+ _dl_dprintf(_dl_debug_file,
+ "\n\tpatched: %x ==> %x @ %x",
+ *got_addr, new_addr, got_addr);
+ }
+ }
+ if (!_dl_debug_nofixups) {
+ *got_addr = new_addr;
+ }
+#else
+ *got_addr = new_addr;
+#endif
+
+ return (unsigned long)new_addr;
}
-int _dl_parse_copy_information(struct dyn_elf *xpnt, unsigned long rel_addr,
- unsigned long rel_size, int type)
+void _dl_parse_lazy_relocation_information(struct dyn_elf *rpnt,
+ unsigned long rel_addr, unsigned long rel_size)
{
/* Nothing to do */
- return 0;
+ return;
}
-
-int _dl_parse_relocation_information(struct elf_resolve *tpnt,
- unsigned long rel_addr, unsigned long rel_size, int type)
+int _dl_parse_relocation_information(struct dyn_elf *xpnt,
+ unsigned long rel_addr, unsigned long rel_size)
{
- Elf32_Sym *symtab;
- Elf32_Rel *rpnt;
+ ElfW(Sym) *symtab;
+ ELF_RELOC *rpnt;
char *strtab;
+ unsigned long i;
unsigned long *got;
- unsigned long *reloc_addr=NULL, old_val=0;
+ unsigned long *reloc_addr=NULL;
unsigned long symbol_addr;
- int i, reloc_type, symtab_index;
+ int reloc_type, symtab_index;
+ struct elf_resolve *tpnt = xpnt->dyn;
+ char *symname = NULL;
+#if defined (__SUPPORT_LD_DEBUG__)
+ unsigned long old_val=0;
+#endif
/* Now parse the relocation information */
- rel_size = rel_size / sizeof(Elf32_Rel);
- rpnt = (Elf32_Rel *) (rel_addr + tpnt->loadaddr);
+ rel_size = rel_size / sizeof(ElfW(Rel));
+ rpnt = (ELF_RELOC *) rel_addr;
- symtab = (Elf32_Sym *) (tpnt->dynamic_info[DT_SYMTAB] + tpnt->loadaddr);
- strtab = (char *) (tpnt->dynamic_info[DT_STRTAB] + tpnt->loadaddr);
- got = (unsigned long *) (tpnt->dynamic_info[DT_PLTGOT] + tpnt->loadaddr);
+ symtab = (ElfW(Sym) *) tpnt->dynamic_info[DT_SYMTAB];
+ strtab = (char *) tpnt->dynamic_info[DT_STRTAB];
+ got = (unsigned long *) tpnt->dynamic_info[DT_PLTGOT];
for (i = 0; i < rel_size; i++, rpnt++) {
reloc_addr = (unsigned long *) (tpnt->loadaddr +
(unsigned long) rpnt->r_offset);
- reloc_type = ELF32_R_TYPE(rpnt->r_info);
- symtab_index = ELF32_R_SYM(rpnt->r_info);
+ reloc_type = ELF_R_TYPE(rpnt->r_info);
+ symtab_index = ELF_R_SYM(rpnt->r_info);
symbol_addr = 0;
- if (!symtab_index && tpnt->libtype == program_interpreter)
- continue;
-
-#if defined (__SUPPORT_LD_DEBUG__)
debug_sym(symtab,strtab,symtab_index);
debug_reloc(symtab,strtab,rpnt);
- old_val = *reloc_addr;
+ symname = strtab + symtab[symtab_index].st_name;
+#if defined (__SUPPORT_LD_DEBUG__)
+ if (reloc_addr)
+ old_val = *reloc_addr;
#endif
+ if (reloc_type == R_MIPS_JUMP_SLOT || reloc_type == R_MIPS_COPY) {
+ symbol_addr = (unsigned long)_dl_find_hash(symname,
+ tpnt->symbol_scope,
+ tpnt,
+ elf_machine_type_class(reloc_type), NULL);
+ if (unlikely(!symbol_addr && ELF32_ST_BIND(symtab[symtab_index].st_info) != STB_WEAK))
+ return 1;
+ }
+ if (!symtab_index) {
+ /* Relocs against STN_UNDEF are usually treated as using a
+ * symbol value of zero, and using the module containing the
+ * reloc itself.
+ */
+ symbol_addr = symtab[symtab_index].st_value;
+ }
+
switch (reloc_type) {
+#if defined USE_TLS && USE_TLS
+# if _MIPS_SIM == _MIPS_SIM_ABI64
+ case R_MIPS_TLS_DTPMOD64:
+ case R_MIPS_TLS_DTPREL64:
+ case R_MIPS_TLS_TPREL64:
+# else
+ case R_MIPS_TLS_DTPMOD32:
+ case R_MIPS_TLS_DTPREL32:
+ case R_MIPS_TLS_TPREL32:
+# endif
+ {
+ struct elf_resolve *tpnt_tls = NULL;
+
+ if (ELF32_ST_BIND(symtab[symtab_index].st_info) != STB_LOCAL) {
+ symbol_addr = (unsigned long) _dl_find_hash(symname, tpnt->symbol_scope,
+ tpnt, elf_machine_type_class(reloc_type), &tpnt_tls);
+ }
+ /* In case of a TLS reloc, tpnt_tls NULL means we have an 'anonymous'
+ symbol. This is the case for a static tls variable, so the lookup
+ module is just that one is referencing the tls variable. */
+ if (!tpnt_tls)
+ tpnt_tls = tpnt;
+
+ switch (reloc_type) {
+ case R_MIPS_TLS_DTPMOD64:
+ case R_MIPS_TLS_DTPMOD32:
+ if (tpnt_tls)
+ *(ElfW(Word) *)reloc_addr = tpnt_tls->l_tls_modid;
+#ifdef __SUPPORT_LD_DEBUG__
+ _dl_dprintf(2, "TLS_DTPMOD : %s, %d, %d\n",
+ symname, old_val, *((unsigned int *)reloc_addr));
+#endif
+ break;
+
+ case R_MIPS_TLS_DTPREL64:
+ case R_MIPS_TLS_DTPREL32:
+ *(ElfW(Word) *)reloc_addr +=
+ TLS_DTPREL_VALUE (symbol_addr);
+#ifdef __SUPPORT_LD_DEBUG__
+ _dl_dprintf(2, "TLS_DTPREL : %s, %x, %x\n",
+ symname, old_val, *((unsigned int *)reloc_addr));
+#endif
+ break;
+
+ case R_MIPS_TLS_TPREL32:
+ case R_MIPS_TLS_TPREL64:
+ CHECK_STATIC_TLS((struct link_map *)tpnt_tls);
+ *(ElfW(Word) *)reloc_addr +=
+ TLS_TPREL_VALUE (tpnt_tls, symbol_addr);
+#ifdef __SUPPORT_LD_DEBUG__
+ _dl_dprintf(2, "TLS_TPREL : %s, %x, %x\n",
+ symname, old_val, *((unsigned int *)reloc_addr));
+#endif
+ break;
+ }
+
+ break;
+ }
+#endif /* USE_TLS */
+#if _MIPS_SIM == _MIPS_SIM_ABI64
+ case (R_MIPS_64 << 8) | R_MIPS_REL32:
+#else /* O32 || N32 */
case R_MIPS_REL32:
+#endif /* O32 || N32 */
if (symtab_index) {
- if (symtab_index < tpnt->mips_gotsym)
+ if (symtab_index < tpnt->dynamic_info[DT_MIPS_GOTSYM_IDX])
*reloc_addr +=
symtab[symtab_index].st_value +
(unsigned long) tpnt->loadaddr;
else {
- *reloc_addr += got[symtab_index + tpnt->mips_local_gotno -
- tpnt->mips_gotsym];
+ *reloc_addr += got[symtab_index + tpnt->dynamic_info[DT_MIPS_LOCAL_GOTNO_IDX] -
+ tpnt->dynamic_info[DT_MIPS_GOTSYM_IDX]];
}
}
else {
*reloc_addr += (unsigned long) tpnt->loadaddr;
}
break;
+ case R_MIPS_JUMP_SLOT:
+ *reloc_addr = symbol_addr;
+ break;
+ case R_MIPS_COPY:
+ if (symbol_addr) {
+#if defined (__SUPPORT_LD_DEBUG__)
+ if (_dl_debug_move)
+ _dl_dprintf(_dl_debug_file,
+ "\n%s move %d bytes from %x to %x",
+ symname, symtab[symtab_index].st_size,
+ symbol_addr, reloc_addr);
+#endif
+
+ _dl_memcpy((char *)reloc_addr,
+ (char *)symbol_addr,
+ symtab[symtab_index].st_size);
+ }
+ break;
case R_MIPS_NONE:
break;
default:
{
- int reloc_type = ELF32_R_TYPE(rpnt->r_info);
_dl_dprintf(2, "\n%s: ",_dl_progname);
if (symtab_index)
- _dl_dprintf(2, "symbol '%s': ", strtab + symtab[symtab_index].st_name);
+ _dl_dprintf(2, "symbol '%s': ", symname);
#if defined (__SUPPORT_LD_DEBUG__)
- _dl_dprintf(2, "can't handle reloc type %s\n ", _dl_reltypes(reloc_type));
+ _dl_dprintf(2, "can't handle reloc type '%s' in lib '%s'\n", _dl_reltypes(reloc_type), tpnt->libname);
#else
- _dl_dprintf(2, "can't handle reloc type %x\n", reloc_type);
-#endif
+ _dl_dprintf(2, "can't handle reloc type %x in lib '%s'\n", reloc_type, tpnt->libname);
+#endif
_dl_exit(1);
}
- };
+ }
- };
+ }
#if defined (__SUPPORT_LD_DEBUG__)
- if(_dl_debug_reloc && _dl_debug_detail)
+ if (_dl_debug_reloc && _dl_debug_detail && reloc_addr)
_dl_dprintf(_dl_debug_file, "\tpatched: %x ==> %x @ %x\n", old_val, *reloc_addr, reloc_addr);
#endif
return 0;
}
-void _dl_perform_mips_global_got_relocations(struct elf_resolve *tpnt)
+/* Relocate the global GOT entries for the object */
+void _dl_perform_mips_global_got_relocations(struct elf_resolve *tpnt, int lazy)
{
- Elf32_Sym *sym;
+ ElfW(Sym) *sym;
char *strtab;
- unsigned long i;
+ unsigned long i, tmp_lazy;
unsigned long *got_entry;
for (; tpnt ; tpnt = tpnt->next) {
continue;
/* Setup the loop variables */
- got_entry = (unsigned long *) (tpnt->loadaddr +
- tpnt->dynamic_info[DT_PLTGOT]) + tpnt->mips_local_gotno;
- sym = (Elf32_Sym *) (tpnt->dynamic_info[DT_SYMTAB] +
- (unsigned long) tpnt->loadaddr) + tpnt->mips_gotsym;
- strtab = (char *) (tpnt->dynamic_info[DT_STRTAB] +
- (unsigned long) tpnt->loadaddr);
- i = tpnt->mips_symtabno - tpnt->mips_gotsym;
+ got_entry = (unsigned long *) (tpnt->dynamic_info[DT_PLTGOT])
+ + tpnt->dynamic_info[DT_MIPS_LOCAL_GOTNO_IDX];
+ sym = (ElfW(Sym) *) tpnt->dynamic_info[DT_SYMTAB] + tpnt->dynamic_info[DT_MIPS_GOTSYM_IDX];
+ strtab = (char *) tpnt->dynamic_info[DT_STRTAB];
+ i = tpnt->dynamic_info[DT_MIPS_SYMTABNO_IDX] - tpnt->dynamic_info[DT_MIPS_GOTSYM_IDX];
+#if defined (__SUPPORT_LD_DEBUG__)
+ if (_dl_debug_reloc)
+ _dl_dprintf(2, "_dl_perform_mips_global_got_relocations for '%s'\n", tpnt->libname);
+#endif
+ tmp_lazy = lazy && !tpnt->dynamic_info[DT_BIND_NOW];
/* Relocate the global GOT entries for the object */
- while(i--) {
+ while (i--) {
if (sym->st_shndx == SHN_UNDEF) {
- if (ELF32_ST_TYPE(sym->st_info) == STT_FUNC && sym->st_value)
+ if (ELF_ST_TYPE(sym->st_info) == STT_FUNC && sym->st_value && tmp_lazy) {
*got_entry = sym->st_value + (unsigned long) tpnt->loadaddr;
+ }
else {
*got_entry = (unsigned long) _dl_find_hash(strtab +
- sym->st_name, tpnt->symbol_scope, NULL, copyrel);
+ sym->st_name, tpnt->symbol_scope, tpnt, ELF_RTYPE_CLASS_PLT, NULL);
}
}
else if (sym->st_shndx == SHN_COMMON) {
*got_entry = (unsigned long) _dl_find_hash(strtab +
- sym->st_name, tpnt->symbol_scope, NULL, copyrel);
+ sym->st_name, tpnt->symbol_scope, tpnt, ELF_RTYPE_CLASS_PLT, NULL);
}
- else if (ELF32_ST_TYPE(sym->st_info) == STT_FUNC &&
- *got_entry != sym->st_value)
+ else if (ELF_ST_TYPE(sym->st_info) == STT_FUNC &&
+ *got_entry != sym->st_value && tmp_lazy) {
*got_entry += (unsigned long) tpnt->loadaddr;
- else if (ELF32_ST_TYPE(sym->st_info) == STT_SECTION) {
+ }
+ else if (ELF_ST_TYPE(sym->st_info) == STT_SECTION) {
if (sym->st_other == 0)
*got_entry += (unsigned long) tpnt->loadaddr;
}
else {
*got_entry = (unsigned long) _dl_find_hash(strtab +
- sym->st_name, tpnt->symbol_scope, NULL, copyrel);
+ sym->st_name, tpnt->symbol_scope, tpnt, ELF_RTYPE_CLASS_PLT, NULL);
}
got_entry++;
}
}
}
+
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