DWARF_GET_ARANGES(3) | Library Functions Manual | DWARF_GET_ARANGES(3) |
dwarf_get_aranges
—
#include <libdwarf.h>
int
dwarf_get_aranges
(Dwarf_Debug
dbg, Dwarf_Arange **ar_list,
Dwarf_Signed *ar_cnt, Dwarf_Error
*err);
dwarf_get_aranges
() retrieves address range
information from the “.debug_aranges” DWARF section. Information
about address ranges is returned using opaque descriptors of type
Dwarf_Arange,
Argument dbg should reference a DWARF debug context allocated using dwarf_init(3).
Argument ar_list should point to a location which will be set to a pointer to an array of Dwarf_Arange descriptors.
Argument ar_cnt should point to a location which will be set to the number of descriptors returned.
If argument err is not NULL, it will be used to store error information in case of an error.
dwarf_get_aranges
() returns
DW_DLV_OK
when it succeeds. It returns
DW_DLV_NO_ENTRY
if there is no
“.debug_aranges” section associated with the specified debugging
context. In case of an error, it returns DW_DLV_ERROR
and sets the argument err.
dwarf_get_aranges
() can fail with:
DW_DLE_ARGUMENT
]DW_DLE_NO_ENTRY
]Dwarf_Debug dbg; Dwarf_Addr start; Dwarf_Arange *aranges; Dwarf_Off die_off; Dwarf_Signed i, cnt; Dwarf_Unsigned length; Dwarf_Error de; if (dwarf_get_aranges(dbg, &aranges, &cnt, &de) != DW_DLV_OK) errx(EXIT_FAILURE, "dwarf_get_aranges: %s", dwarf_errmsg(de)); for (i = 0; i < cnt; i++) { if (dwarf_get_arange_info(aranges[i], &start, &length, &die_off, &de) != DW_DLV_OK) { warnx("dwarf_get_arange_info: %s", dwarf_errmsg(de)); continue; } /* Do something with the returned information. */ }
November 9, 2011 | NetBSD 9.2 |