* SUCH DAMAGE.
*/
+#include "ldso.h"
+#define TLS_DTV_OFFSET 0x8000
+#define TLS_TP_OFFSET 0x7000
+
extern int _dl_linux_resolve(void);
void _dl_init_got(unsigned long *plt,struct elf_resolve *tpnt)
Elf32_Word rel_offset_words;
Elf32_Word dlrr = (Elf32_Word) _dl_linux_resolve;
+ if (tpnt->dynamic_info[DT_JMPREL] == 0)
+ return;
+ if (tpnt->dynamic_info[DT_PPC_GOT_IDX] != 0) {
+ tpnt->dynamic_info[DT_PPC_GOT_IDX] += tpnt->loadaddr;
+ return;
+ }
num_plt_entries = tpnt->dynamic_info[DT_PLTRELSZ] / sizeof(ELF_RELOC);
rel_offset_words = PLT_DATA_START_WORDS(num_plt_entries);
data_words = (Elf32_Word) (plt + rel_offset_words);
debug_sym(symtab,strtab,symtab_index);
debug_reloc(symtab,strtab,this_reloc);
-#if defined (__SUPPORT_LD_DEBUG__)
- if (unlikely(ELF32_R_TYPE(this_reloc->r_info) != R_PPC_JMP_SLOT)) {
- _dl_dprintf(2, "%s: Incorrect relocation type in jump relocation\n", _dl_progname);
- _dl_exit(1);
- };
-#endif
-
/* Address of dump instruction to fix up */
reloc_addr = (Elf32_Addr *) (tpnt->loadaddr + this_reloc->r_offset);
#if defined (__SUPPORT_LD_DEBUG__)
- if(_dl_debug_reloc && _dl_debug_detail)
+ if (_dl_debug_reloc && _dl_debug_detail)
_dl_dprintf(_dl_debug_file, "\n\tResolving symbol %s %x --> ", symname, (Elf32_Addr)reloc_addr);
#endif
/* Get the address of the GOT entry */
finaladdr = (Elf32_Addr) _dl_find_hash(symname,
- tpnt->symbol_scope, tpnt, ELF_RTYPE_CLASS_PLT);
+ tpnt->symbol_scope, tpnt, ELF_RTYPE_CLASS_PLT, NULL);
if (unlikely(!finaladdr)) {
_dl_dprintf(2, "%s: can't resolve symbol '%s' in lib '%s'.\n", _dl_progname, symname, tpnt->libname);
_dl_exit(1);
- };
+ }
finaladdr += this_reloc->r_addend;
#if defined (__SUPPORT_LD_DEBUG__)
- if(_dl_debug_reloc && _dl_debug_detail)
+ if (_dl_debug_reloc && _dl_debug_detail)
_dl_dprintf(_dl_debug_file, "%x\n", finaladdr);
#endif
- delta = finaladdr - (Elf32_Word)reloc_addr;
- if (delta<<6>>6 == delta) {
- *reloc_addr = OPCODE_B(delta);
- } else if (finaladdr <= 0x01fffffc) {
- *reloc_addr = OPCODE_BA (finaladdr);
+ if (tpnt->dynamic_info[DT_PPC_GOT_IDX] != 0) {
+ *reloc_addr = finaladdr;
} else {
- /* Warning: we don't handle double-sized PLT entries */
- Elf32_Word *plt, *data_words, index, offset;
+ delta = finaladdr - (Elf32_Word)reloc_addr;
+ if (delta<<6>>6 == delta) {
+ *reloc_addr = OPCODE_B(delta);
+ } else if (finaladdr <= 0x01fffffc) {
+ *reloc_addr = OPCODE_BA (finaladdr);
+ } else {
+ /* Warning: we don't handle double-sized PLT entries */
+ Elf32_Word *plt, *data_words, idx, offset;
- plt = (Elf32_Word *)tpnt->dynamic_info[DT_PLTGOT];
- offset = reloc_addr - plt;
- index = (offset - PLT_INITIAL_ENTRY_WORDS)/2;
- data_words = (Elf32_Word *)tpnt->data_words;
- reloc_addr += 1;
+ plt = (Elf32_Word *)tpnt->dynamic_info[DT_PLTGOT];
+ offset = reloc_addr - plt;
+ idx = (offset - PLT_INITIAL_ENTRY_WORDS)/2;
+ data_words = (Elf32_Word *)tpnt->data_words;
+ reloc_addr += 1;
- data_words[index] = finaladdr;
+ data_words[idx] = finaladdr;
+ PPC_SYNC;
+ *reloc_addr = OPCODE_B ((PLT_LONGBRANCH_ENTRY_WORDS - (offset+1)) * 4);
+ }
+
+ /* instructions were modified */
+ PPC_DCBST(reloc_addr);
PPC_SYNC;
- *reloc_addr = OPCODE_B ((PLT_LONGBRANCH_ENTRY_WORDS - (offset+1)) * 4);
+ PPC_ICBI(reloc_addr);
+ PPC_ISYNC;
}
-
- /* instructions were modified */
- PPC_DCBST(reloc_addr);
- PPC_SYNC;
- PPC_ICBI(reloc_addr);
- PPC_ISYNC;
-
return finaladdr;
}
-static inline int
+static __inline__ int
_dl_do_reloc (struct elf_resolve *tpnt,struct dyn_elf *scope,
ELF_RELOC *rpnt, Elf32_Sym *symtab, char *strtab)
{
int reloc_type;
int symtab_index;
- char *symname;
+ ElfW(Sym) *sym;
Elf32_Addr *reloc_addr;
Elf32_Addr finaladdr;
-
+ struct elf_resolve *tls_tpnt = NULL;
unsigned long symbol_addr;
+ char *symname;
#if defined (__SUPPORT_LD_DEBUG__)
unsigned long old_val;
#endif
- reloc_addr = (Elf32_Addr *)(intptr_t) (tpnt->loadaddr + (unsigned long) rpnt->r_offset);
+
+ symbol_addr = tpnt->loadaddr; /* For R_PPC_RELATIVE */
+ reloc_addr = (Elf32_Addr *)(intptr_t) (symbol_addr + (unsigned long) rpnt->r_offset);
reloc_type = ELF32_R_TYPE(rpnt->r_info);
- symbol_addr = tpnt->loadaddr; /* For R_PPC_RELATIVE */
symtab_index = ELF32_R_SYM(rpnt->r_info);
- symname = strtab + symtab[symtab_index].st_name;
+ sym = &symtab[symtab_index];
+ symname = strtab + sym->st_name;
if (symtab_index) {
symbol_addr = (unsigned long) _dl_find_hash(symname, scope, tpnt,
- elf_machine_type_class(reloc_type));
+ elf_machine_type_class(reloc_type), &tls_tpnt);
/* We want to allow undefined references to weak symbols - this might
* have been intentional. We should not be linking local symbols
* here, so all bases should be covered.
*/
- if (unlikely(!symbol_addr && ELF32_ST_BIND(symtab[symtab_index].st_info) != STB_WEAK))
- return -1;
+ if (unlikely(!symbol_addr
+ && (ELF32_ST_TYPE(sym->st_info) != STT_TLS
+ && ELF32_ST_BIND(sym->st_info) != STB_WEAK)))
+ return 1;
+ } else {
+ symbol_addr = sym->st_value;
+ tls_tpnt = tpnt;
}
#if defined (__SUPPORT_LD_DEBUG__)
old_val = *reloc_addr;
goto out_nocode; /* No code code modified */
case R_PPC_JMP_SLOT:
{
- Elf32_Sword delta = finaladdr - (Elf32_Word)reloc_addr;
- if (delta<<6>>6 == delta) {
- *reloc_addr = OPCODE_B(delta);
- } else if (finaladdr <= 0x01fffffc) {
- *reloc_addr = OPCODE_BA (finaladdr);
+ if (tpnt->dynamic_info[DT_PPC_GOT_IDX] != 0) {
+ *reloc_addr = finaladdr;
+ goto out_nocode; /* No code code modified */
} else {
- /* Warning: we don't handle double-sized PLT entries */
- Elf32_Word *plt, *data_words, index, offset;
-
- plt = (Elf32_Word *)tpnt->dynamic_info[DT_PLTGOT];
- offset = reloc_addr - plt;
- index = (offset - PLT_INITIAL_ENTRY_WORDS)/2;
- data_words = (Elf32_Word *)tpnt->data_words;
-
- data_words[index] = finaladdr;
- reloc_addr[0] = OPCODE_LI(11,index*4);
- reloc_addr[1] = OPCODE_B((PLT_LONGBRANCH_ENTRY_WORDS - (offset+1)) * 4);
-
- /* instructions were modified */
- PPC_DCBST(reloc_addr+1);
- PPC_SYNC;
- PPC_ICBI(reloc_addr+1);
+ Elf32_Sword delta = finaladdr - (Elf32_Word)reloc_addr;
+ if (delta<<6>>6 == delta) {
+ *reloc_addr = OPCODE_B(delta);
+ } else if (finaladdr <= 0x01fffffc) {
+ *reloc_addr = OPCODE_BA (finaladdr);
+ } else {
+ /* Warning: we don't handle double-sized PLT entries */
+ Elf32_Word *plt, *data_words, idx, offset;
+
+ plt = (Elf32_Word *)tpnt->dynamic_info[DT_PLTGOT];
+ offset = reloc_addr - plt;
+ idx = (offset - PLT_INITIAL_ENTRY_WORDS)/2;
+ data_words = (Elf32_Word *)tpnt->data_words;
+
+ data_words[idx] = finaladdr;
+ reloc_addr[0] = OPCODE_LI(11,idx*4);
+ reloc_addr[1] = OPCODE_B((PLT_LONGBRANCH_ENTRY_WORDS - (offset+1)) * 4);
+
+ /* instructions were modified */
+ PPC_DCBST(reloc_addr+1);
+ PPC_SYNC;
+ PPC_ICBI(reloc_addr+1);
+ }
}
break;
}
case R_PPC_COPY:
#if defined (__SUPPORT_LD_DEBUG__)
- if(_dl_debug_move)
+ if (_dl_debug_move)
_dl_dprintf(_dl_debug_file,"\n%s move %x bytes from %x to %x",
- symname, symtab[symtab_index].st_size,
+ symname, sym->st_size,
symbol_addr, reloc_addr);
#endif
- _dl_memcpy((char *) reloc_addr, (char *) finaladdr, symtab[symtab_index].st_size);
+ _dl_memcpy((char *) reloc_addr, (char *) finaladdr, sym->st_size);
goto out_nocode; /* No code code modified */
case R_PPC_ADDR16_HA:
finaladdr += 0x8000; /* fall through. */
case R_PPC_ADDR16_LO:
*(short *)reloc_addr = finaladdr;
break;
+#if USE_TLS
+ case R_PPC_DTPMOD32:
+ *reloc_addr = tls_tpnt->l_tls_modid;
+ break;
+ case R_PPC_DTPREL32:
+ /* During relocation all TLS symbols are defined and used.
+ Therefore the offset is already correct. */
+ *reloc_addr = finaladdr - TLS_DTV_OFFSET;
+ break;
+ case R_PPC_TPREL32:
+ *reloc_addr = tls_tpnt->l_tls_offset + finaladdr - TLS_TP_OFFSET;
+ break;
+#endif
case R_PPC_REL24:
#if 0
{
Elf32_Sword delta = finaladdr - (Elf32_Word)reloc_addr;
- if(unlikely(delta<<6>>6 != delta)) {
+ if (unlikely(delta<<6>>6 != delta)) {
_dl_dprintf(2, "%s: symbol '%s' R_PPC_REL24 is out of range.\n\t"
"Compile shared libraries with -fPIC!\n",
_dl_progname, symname);
if (symtab_index)
_dl_dprintf(2, "'%s'\n", symname);
return -1;
- };
+ }
/* instructions were modified */
PPC_DCBST(reloc_addr);
PPC_ISYNC;
out_nocode:
#if defined (__SUPPORT_LD_DEBUG__)
- if(_dl_debug_reloc && _dl_debug_detail)
- _dl_dprintf(_dl_debug_file, "\tpatched: %x ==> %x @ %x", old_val, *reloc_addr, reloc_addr);
+ if (_dl_debug_reloc && _dl_debug_detail)
+ _dl_dprintf(_dl_debug_file, "\tpatched: %x ==> %x @ %x\n", old_val, *reloc_addr, reloc_addr);
#endif
return 0;
}
Elf32_Word *plt, offset, i, num_plt_entries, rel_offset_words;
num_plt_entries = rel_size / sizeof(ELF_RELOC);
+ plt = (Elf32_Word *)tpnt->dynamic_info[DT_PLTGOT];
+ if (tpnt->dynamic_info[DT_PPC_GOT_IDX] != 0) {
+ /* Secure PLT */
+ Elf32_Addr *got = (Elf32_Addr *)tpnt->dynamic_info[DT_PPC_GOT_IDX];
+ Elf32_Word dlrr = (Elf32_Word) _dl_linux_resolve;
+
+ got[1] = (Elf32_Addr) dlrr;
+ got[2] = (Elf32_Addr) tpnt;
+
+ /* Relocate everything in .plt by the load address offset. */
+ while (num_plt_entries-- != 0)
+ *plt++ += tpnt->loadaddr;
+ return;
+ }
rel_offset_words = PLT_DATA_START_WORDS(num_plt_entries);
- plt = (Elf32_Word *)tpnt->dynamic_info[DT_PLTGOT];
/* Set up the lazy PLT entries. */
offset = PLT_INITIAL_ENTRY_WORDS;
PPC_ISYNC;
}
-static inline int
+static __inline__ int
_dl_parse(struct elf_resolve *tpnt, struct dyn_elf *scope,
unsigned long rel_addr, unsigned long rel_size,
int (*reloc_fnc) (struct elf_resolve *tpnt, struct dyn_elf *scope,
symtab = (Elf32_Sym *)(intptr_t)tpnt->dynamic_info[DT_SYMTAB];
strtab = (char *)tpnt->dynamic_info[DT_STRTAB];
-
+
for (i = 0; i < rel_size; i++, rpnt++) {
int res;
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