diff options
Diffstat (limited to 'libdwarf/dwarf_cu.c')
| -rw-r--r-- | libdwarf/dwarf_cu.c | 92 |
1 files changed, 77 insertions, 15 deletions
diff --git a/libdwarf/dwarf_cu.c b/libdwarf/dwarf_cu.c index c203dc2f1fc7..d103488d1098 100644 --- a/libdwarf/dwarf_cu.c +++ b/libdwarf/dwarf_cu.c @@ -1,5 +1,6 @@ /*- * Copyright (c) 2007 John Birrell (jb@freebsd.org) + * Copyright (c) 2014 Kai Wang * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -26,14 +27,15 @@ #include "_libdwarf.h" -ELFTC_VCSID("$Id: dwarf_cu.c 2072 2011-10-27 03:26:49Z jkoshy $"); +ELFTC_VCSID("$Id: dwarf_cu.c 3041 2014-05-18 15:11:03Z kaiwang27 $"); int -dwarf_next_cu_header_b(Dwarf_Debug dbg, Dwarf_Unsigned *cu_length, - Dwarf_Half *cu_version, Dwarf_Off *cu_abbrev_offset, - Dwarf_Half *cu_pointer_size, Dwarf_Half *cu_offset_size, - Dwarf_Half *cu_extension_size, Dwarf_Unsigned *cu_next_offset, - Dwarf_Error *error) +dwarf_next_cu_header_c(Dwarf_Debug dbg, Dwarf_Bool is_info, + Dwarf_Unsigned *cu_length, Dwarf_Half *cu_version, + Dwarf_Off *cu_abbrev_offset, Dwarf_Half *cu_pointer_size, + Dwarf_Half *cu_offset_size, Dwarf_Half *cu_extension_size, + Dwarf_Sig8 *type_signature, Dwarf_Unsigned *type_offset, + Dwarf_Unsigned *cu_next_offset, Dwarf_Error *error) { Dwarf_CU cu; int ret; @@ -43,10 +45,17 @@ dwarf_next_cu_header_b(Dwarf_Debug dbg, Dwarf_Unsigned *cu_length, return (DW_DLV_ERROR); } - if (dbg->dbg_cu_current == NULL) - ret = _dwarf_info_first_cu(dbg, error); - else - ret = _dwarf_info_next_cu(dbg, error); + if (is_info) { + if (dbg->dbg_cu_current == NULL) + ret = _dwarf_info_first_cu(dbg, error); + else + ret = _dwarf_info_next_cu(dbg, error); + } else { + if (dbg->dbg_tu_current == NULL) + ret = _dwarf_info_first_tu(dbg, error); + else + ret = _dwarf_info_next_tu(dbg, error); + } if (ret == DW_DLE_NO_ENTRY) { DWARF_SET_ERROR(dbg, error, DW_DLE_NO_ENTRY); @@ -54,11 +63,19 @@ dwarf_next_cu_header_b(Dwarf_Debug dbg, Dwarf_Unsigned *cu_length, } else if (ret != DW_DLE_NONE) return (DW_DLV_ERROR); - if (dbg->dbg_cu_current == NULL) { - DWARF_SET_ERROR(dbg, error, DW_DLE_NO_ENTRY); - return (DW_DLV_NO_ENTRY); + if (is_info) { + if (dbg->dbg_cu_current == NULL) { + DWARF_SET_ERROR(dbg, error, DW_DLE_NO_ENTRY); + return (DW_DLV_NO_ENTRY); + } + cu = dbg->dbg_cu_current; + } else { + if (dbg->dbg_tu_current == NULL) { + DWARF_SET_ERROR(dbg, error, DW_DLE_NO_ENTRY); + return (DW_DLV_NO_ENTRY); + } + cu = dbg->dbg_tu_current; } - cu = dbg->dbg_cu_current; if (cu_length) *cu_length = cu->cu_length; @@ -81,11 +98,32 @@ dwarf_next_cu_header_b(Dwarf_Debug dbg, Dwarf_Unsigned *cu_length, *cu_extension_size = 4; } if (cu_next_offset) - *cu_next_offset = dbg->dbg_cu_current->cu_next_offset; + *cu_next_offset = cu->cu_next_offset; + + if (!is_info) { + if (type_signature) + *type_signature = cu->cu_type_sig; + if (type_offset) + *type_offset = cu->cu_type_offset; + } return (DW_DLV_OK); } + +int +dwarf_next_cu_header_b(Dwarf_Debug dbg, Dwarf_Unsigned *cu_length, + Dwarf_Half *cu_version, Dwarf_Off *cu_abbrev_offset, + Dwarf_Half *cu_pointer_size, Dwarf_Half *cu_offset_size, + Dwarf_Half *cu_extension_size, Dwarf_Unsigned *cu_next_offset, + Dwarf_Error *error) +{ + + return (dwarf_next_cu_header_c(dbg, 1, cu_length, cu_version, + cu_abbrev_offset, cu_pointer_size, cu_offset_size, + cu_extension_size, NULL, NULL, cu_next_offset, error)); +} + int dwarf_next_cu_header(Dwarf_Debug dbg, Dwarf_Unsigned *cu_length, Dwarf_Half *cu_version, Dwarf_Off *cu_abbrev_offset, @@ -97,3 +135,27 @@ dwarf_next_cu_header(Dwarf_Debug dbg, Dwarf_Unsigned *cu_length, cu_abbrev_offset, cu_pointer_size, NULL, NULL, cu_next_offset, error)); } + +int +dwarf_next_types_section(Dwarf_Debug dbg, Dwarf_Error *error) +{ + + /* Free resource allocated for current .debug_types section. */ + _dwarf_type_unit_cleanup(dbg); + dbg->dbg_types_loaded = 0; + dbg->dbg_types_off = 0; + + /* Reset type unit pointer. */ + dbg->dbg_tu_current = NULL; + + /* Search for the next .debug_types section. */ + dbg->dbg_types_sec = _dwarf_find_next_types_section(dbg, + dbg->dbg_types_sec); + + if (dbg->dbg_types_sec == NULL) { + DWARF_SET_ERROR(dbg, error, DW_DLE_NO_ENTRY); + return (DW_DLV_NO_ENTRY); + } + + return (DW_DLV_OK); +} |