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| author | Mystery Man <unknown@mandriva.org> | 2003-08-20 07:37:27 +0000 |
|---|---|---|
| committer | Mystery Man <unknown@mandriva.org> | 2003-08-20 07:37:27 +0000 |
| commit | 7f2ac73888b8ef372ea597049981b27e7d810ac2 (patch) | |
| tree | 354132889b63bbe5f446cb82869b3c3367135a80 /mdk-stage1/dietlibc/libdl/_dl_relocate.c | |
| parent | 327bd24f8e4291bd1882de1990dd7339f781a9cb (diff) | |
| download | drakx-topic/MDKC_1_0.tar drakx-topic/MDKC_1_0.tar.gz drakx-topic/MDKC_1_0.tar.bz2 drakx-topic/MDKC_1_0.tar.xz drakx-topic/MDKC_1_0.zip | |
This commit was manufactured by cvs2svn to create branch 'MDKC_1_0'.topic/MDKC_1_0
Diffstat (limited to 'mdk-stage1/dietlibc/libdl/_dl_relocate.c')
| -rw-r--r-- | mdk-stage1/dietlibc/libdl/_dl_relocate.c | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/mdk-stage1/dietlibc/libdl/_dl_relocate.c b/mdk-stage1/dietlibc/libdl/_dl_relocate.c new file mode 100644 index 000000000..e91e48ccf --- /dev/null +++ b/mdk-stage1/dietlibc/libdl/_dl_relocate.c @@ -0,0 +1,96 @@ +#include "_dl_int.h" + +#include "_dl_rel.h" + +#if 0 +/*--- are other relocation types vital to shared objects ? ---*/ + + R_386_NONE 0 /* No reloc */ + R_386_32 1 /* Direct 32 bit */ + R_386_COPY 5 /* Copy symbol at runtime ?!? */ + R_386_GLOB_DAT 6 /* Create GOT entry */ + R_386_JMP_SLOT 7 /* Create PLT entry */ + R_386_RELATIVE 8 /* Adjust by program base */ + + R_ARM_NONE 0 /* No reloc */ + R_ARM_ABS32 2 /* Direct 32 bit */ + R_ARM_COPY 20 /* Copy symbol at runtime */ + R_ARM_GLOB_DAT 21 /* Create GOT entry */ + R_ARM_JUMP_SLOT 22 /* Create PLT entry */ + R_ARM_RELATIVE 23 /* Adjust by program base */ + +#endif + +static int _dl_apply_relocate(struct _dl_handle*dh,_dl_rel_t*rel) { + int typ,ret=0; + Elf_Addr*loc; + + loc=(Elf_Addr *)(dh->mem_base+rel->r_offset); + +#ifdef DEBUG +#if 0 + pf(__FUNCTION__); pf(": "); ph(ELF_R_TYPE(rel->r_info)); pf(" @ "); ph((unsigned long)loc); + pf(" preval "); ph(*(unsigned long*)loc); pf("\n"); +#endif +#endif + + typ=ELF_R_TYPE(rel->r_info); + +#ifdef __i386__ + if (typ==R_386_32) { /* 1 */ + *loc=(unsigned long)(dh->mem_base+dh->dyn_sym_tab[ELF_R_SYM(rel->r_info)].st_value); + } else if (typ==R_386_COPY) { /* 5 */ + int len=dh->dyn_sym_tab[ELF_R_SYM(rel->r_info)].st_size; +#ifdef DEBUG + pf(__FUNCTION__); pf(": R_386_COPY !\n"); +#endif + memcpy(loc,(void*)(unsigned long)_dl_sym(dh,ELF_R_SYM(rel->r_info)),len); + } else if (typ==R_386_GLOB_DAT) { /* 6 */ + *loc=(unsigned long)_dl_sym(dh,ELF_R_SYM(rel->r_info)); + } else if (typ==R_386_JMP_SLOT) { /* 7 */ + *loc+=(unsigned long)dh->mem_base; + } else if (typ==R_386_RELATIVE) { /* 8 */ + *loc+=(unsigned long)dh->mem_base; + } else if (typ==R_386_NONE) { /* 0 */ + } else + ret=1; +#endif +#ifdef __arm__ + if (typ==R_ARM_ABS32) { /* 2 */ + *loc=(unsigned long)(dh->mem_base+dh->dyn_sym_tab[ELF_R_SYM(rel->r_info)].st_value); + } else if (typ==R_ARM_COPY) { /* 20 */ + int len=dh->dyn_sym_tab[ELF_R_SYM(rel->r_info)].st_size; +#ifdef DEBUG + pf(__FUNCTION__); pf(": R_ARM_COPY !\n"); +#endif + memcpy(loc,(void*)(unsigned long)_dl_sym(dh,ELF_R_SYM(rel->r_info)),len); + } else if (typ==R_ARM_GLOB_DAT) { /* 21 */ + *loc=(unsigned long)_dl_sym(dh,ELF_R_SYM(rel->r_info)); + } else if (typ==R_ARM_JUMP_SLOT) { /* 22 */ + *loc+=(unsigned long)dh->mem_base; + } else if (typ==R_ARM_RELATIVE) { /* 23 */ + *loc+=(unsigned long)dh->mem_base; + } else if (typ==R_ARM_NONE) { /* 0 */ + } else + ret=1; +#endif + +#ifdef DEBUG + pf(__FUNCTION__); pf(": @ "); ph((unsigned long)loc); pf(" val "); ph(*(unsigned long*)loc); pf("\n"); +#endif + return ret; +} + +#ifdef __DIET_LD_SO__ +static +#endif +int _dl_relocate(struct _dl_handle*dh,_dl_rel_t *rel,int num) { + int i; + for (i=0;i<num;i++) { + if (_dl_apply_relocate(dh,rel+i)) { + _dl_error=4; + return 1; + } + } + return 0; +} |