diff --git a/src/dwarf/Gpe.c b/src/dwarf/Gpe.c index 9f7b5cfc..45612907 100644 --- a/src/dwarf/Gpe.c +++ b/src/dwarf/Gpe.c @@ -29,134 +29,9 @@ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ HIDDEN int dwarf_read_encoded_pointer (unw_addr_space_t as, unw_accessors_t *a, unw_word_t *addr, unsigned char encoding, - unw_proc_info_t *pi, + const unw_proc_info_t *pi, unw_word_t *valp, void *arg) { - unw_word_t val, initial_addr = *addr; - uint16_t uval16; - uint32_t uval32; - uint64_t uval64; - int16_t sval16; - int32_t sval32; - int64_t sval64; - int ret; - - /* DW_EH_PE_omit and DW_EH_PE_aligned don't follow the normal - format/application encoding. Handle them first. */ - if (encoding == DW_EH_PE_omit) - { - *valp = 0; - return 0; - } - else if (encoding == DW_EH_PE_aligned) - { - *addr = (initial_addr + sizeof (unw_word_t) - 1) & -sizeof (unw_word_t); - return dwarf_readw (as, a, addr, valp, arg); - } - - switch (encoding & DW_EH_PE_FORMAT_MASK) - { - case DW_EH_PE_ptr: - if ((ret = dwarf_readw (as, a, addr, &val, arg)) < 0) - return ret; - break; - - case DW_EH_PE_uleb128: - if ((ret = dwarf_read_uleb128 (as, a, addr, &val, arg)) < 0) - return ret; - break; - - case DW_EH_PE_udata2: - if ((ret = dwarf_readu16 (as, a, addr, &uval16, arg)) < 0) - return ret; - val = uval16; - break; - - case DW_EH_PE_udata4: - if ((ret = dwarf_readu32 (as, a, addr, &uval32, arg)) < 0) - return ret; - val = uval32; - break; - - case DW_EH_PE_udata8: - if ((ret = dwarf_readu64 (as, a, addr, &uval64, arg)) < 0) - return ret; - val = uval64; - break; - - case DW_EH_PE_sleb128: - if ((ret = dwarf_read_uleb128 (as, a, addr, &val, arg)) < 0) - return ret; - break; - - case DW_EH_PE_sdata2: - if ((ret = dwarf_reads16 (as, a, addr, &sval16, arg)) < 0) - return ret; - val = sval16; - break; - - case DW_EH_PE_sdata4: - if ((ret = dwarf_reads32 (as, a, addr, &sval32, arg)) < 0) - return ret; - val = sval32; - break; - - case DW_EH_PE_sdata8: - if ((ret = dwarf_reads64 (as, a, addr, &sval64, arg)) < 0) - return ret; - val = sval64; - break; - - default: - Debug (1, "unexpected encoding format 0x%x\n", - encoding & DW_EH_PE_FORMAT_MASK); - return -UNW_EINVAL; - } - - if (val == 0) - { - /* 0 is a special value and always absolute. */ - *valp = 0; - return 0; - } - - switch (encoding & DW_EH_PE_APPL_MASK) - { - case DW_EH_PE_absptr: - break; - - case DW_EH_PE_pcrel: - val += initial_addr; - break; - - case DW_EH_PE_datarel: - /* XXX For now, assume that data-relative addresses are relative - to the global pointer. */ - val += pi->gp; - break; - - case DW_EH_PE_funcrel: - val += pi->start_ip; - break; - - case DW_EH_PE_textrel: - /* XXX For now we don't support text-rel values. If there is a - platform which needs this, we probably would have to add a - "segbase" member to unw_proc_info_t. */ - default: - Debug (1, "unexpected application type 0x%x\n", - encoding & DW_EH_PE_APPL_MASK); - return -UNW_EINVAL; - } - - if (encoding & DW_EH_PE_indirect) - { - unw_word_t indirect_addr = val; - - if ((ret = dwarf_readw (as, a, &indirect_addr, &val, arg)) < 0) - return ret; - } - - *valp = val; - return 0; + return dwarf_read_encoded_pointer_inlined (as, a, addr, encoding, + pi, valp, arg); }