diff options
Diffstat (limited to 'rtemstoolkit/elftoolchain/libdwarf/dwarf_init.c')
| -rw-r--r-- | rtemstoolkit/elftoolchain/libdwarf/dwarf_init.c | 163 |
1 files changed, 163 insertions, 0 deletions
diff --git a/rtemstoolkit/elftoolchain/libdwarf/dwarf_init.c b/rtemstoolkit/elftoolchain/libdwarf/dwarf_init.c new file mode 100644 index 0000000..16ec53c --- /dev/null +++ b/rtemstoolkit/elftoolchain/libdwarf/dwarf_init.c @@ -0,0 +1,163 @@ +/*- + * Copyright (c) 2007 John Birrell (jb@freebsd.org) + * Copyright (c) 2009 Kai Wang + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include "_libdwarf.h" + +ELFTC_VCSID("$Id: dwarf_init.c 2073 2011-10-27 03:30:47Z jkoshy $"); + +int +dwarf_elf_init(Elf *elf, int mode, Dwarf_Handler errhand, Dwarf_Ptr errarg, + Dwarf_Debug *ret_dbg, Dwarf_Error *error) +{ + Dwarf_Debug dbg; + int ret; + + if (elf == NULL || ret_dbg == NULL) { + DWARF_SET_ERROR(NULL, error, DW_DLE_ARGUMENT); + return (DW_DLV_ERROR); + } + + if (mode != DW_DLC_READ) { + DWARF_SET_ERROR(NULL, error, DW_DLE_ARGUMENT); + return (DW_DLV_ERROR); + } + + if (_dwarf_alloc(&dbg, mode, error) != DW_DLE_NONE) + return (DW_DLV_ERROR); + + if (_dwarf_elf_init(dbg, elf, error) != DW_DLE_NONE) { + free(dbg); + return (DW_DLV_ERROR); + } + + if ((ret = _dwarf_init(dbg, 0, errhand, errarg, error)) != + DW_DLE_NONE) { + _dwarf_elf_deinit(dbg); + free(dbg); + if (ret == DW_DLE_DEBUG_INFO_NULL) + return (DW_DLV_NO_ENTRY); + else + return (DW_DLV_ERROR); + } + + *ret_dbg = dbg; + + return (DW_DLV_OK); +} + +int +dwarf_get_elf(Dwarf_Debug dbg, Elf **elf, Dwarf_Error *error) +{ + Dwarf_Elf_Object *e; + + if (dbg == NULL || elf == NULL) { + DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT); + return (DW_DLV_ERROR); + } + + e = dbg->dbg_iface->object; + *elf = e->eo_elf; + + return (DW_DLV_OK); +} + +int +dwarf_init(int fd, int mode, Dwarf_Handler errhand, Dwarf_Ptr errarg, + Dwarf_Debug *ret_dbg, Dwarf_Error *error) +{ + Dwarf_Debug dbg; + Elf *elf; + int ret; + + if (fd < 0 || ret_dbg == NULL) { + DWARF_SET_ERROR(NULL, error, DW_DLE_ARGUMENT); + return (DW_DLV_ERROR); + } + + if (mode != DW_DLC_READ) { + DWARF_SET_ERROR(NULL, error, DW_DLE_ARGUMENT); + return (DW_DLV_ERROR); + } + + if (elf_version(EV_CURRENT) == EV_NONE) { + DWARF_SET_ELF_ERROR(NULL, error); + return (DW_DLV_ERROR); + } + + if ((elf = elf_begin(fd, ELF_C_READ, NULL)) == NULL) { + DWARF_SET_ELF_ERROR(NULL, error); + return (DW_DLV_ERROR); + } + + if (_dwarf_alloc(&dbg, mode, error) != DW_DLE_NONE) + return (DW_DLV_ERROR); + + if (_dwarf_elf_init(dbg, elf, error) != DW_DLE_NONE) { + free(dbg); + return (DW_DLV_ERROR); + } + + if ((ret = _dwarf_init(dbg, 0, errhand, errarg, error)) != + DW_DLE_NONE) { + _dwarf_elf_deinit(dbg); + free(dbg); + if (ret == DW_DLE_DEBUG_INFO_NULL) + return (DW_DLV_NO_ENTRY); + else + return (DW_DLV_ERROR); + } + + *ret_dbg = dbg; + + return (DW_DLV_OK); +} + +int +dwarf_object_init(Dwarf_Obj_Access_Interface *iface, Dwarf_Handler errhand, + Dwarf_Ptr errarg, Dwarf_Debug *ret_dbg, Dwarf_Error *error) +{ + Dwarf_Debug dbg; + + if (iface == NULL || ret_dbg == NULL) { + DWARF_SET_ERROR(NULL, error, DW_DLE_ARGUMENT); + return (DW_DLV_ERROR); + } + + if (_dwarf_alloc(&dbg, DW_DLC_READ, error) != DW_DLE_NONE) + return (DW_DLV_ERROR); + + dbg->dbg_iface = iface; + + if (_dwarf_init(dbg, 0, errhand, errarg, error) != DW_DLE_NONE) { + free(dbg); + return (DW_DLV_ERROR); + } + + *ret_dbg = dbg; + + return (DW_DLV_OK); +} |