diff options
Diffstat (limited to 'libdw/dwarf_getsrcfiles.c')
| -rw-r--r-- | libdw/dwarf_getsrcfiles.c | 50 |
1 files changed, 41 insertions, 9 deletions
diff --git a/libdw/dwarf_getsrcfiles.c b/libdw/dwarf_getsrcfiles.c index 5af6f68b..12fdabf2 100644 --- a/libdw/dwarf_getsrcfiles.c +++ b/libdw/dwarf_getsrcfiles.c @@ -1,7 +1,6 @@ /* Return source file information of CU. - Copyright (C) 2004, 2005, 2013, 2015 Red Hat, Inc. + Copyright (C) 2004, 2005, 2013, 2015, 2018 Red Hat, Inc. This file is part of elfutils. - Written by Ulrich Drepper <[email protected]>, 2004. This file is free software; you can redistribute it and/or modify it under the terms of either @@ -51,14 +50,47 @@ dwarf_getsrcfiles (Dwarf_Die *cudie, Dwarf_Files **files, size_t *nfiles) /* Get the information if it is not already known. */ struct Dwarf_CU *const cu = cudie->cu; - if (cu->lines == NULL) + if (cu->files == NULL) { - Dwarf_Lines *lines; - size_t nlines; - - /* Let the more generic function do the work. It'll create more - data but that will be needed in an real program anyway. */ - res = INTUSE(dwarf_getsrclines) (cudie, &lines, &nlines); + /* For split units there might be a simple file table (without lines). + If not, use the one from the skeleton. */ + if (cu->unit_type == DW_UT_split_compile + || cu->unit_type == DW_UT_split_type) + { + /* We tried, assume we fail... */ + cu->files = (void *) -1; + + /* See if there is a .debug_line section, for split CUs + the table is at offset zero. */ + if (cu->dbg->sectiondata[IDX_debug_line] != NULL) + { + /* We are only interested in the files, the lines will + always come from the skeleton. */ + res = __libdw_getsrclines (cu->dbg, 0, + __libdw_getcompdir (cudie), + cu->address_size, NULL, + &cu->files); + } + else + { + Dwarf_CU *skel = __libdw_find_split_unit (cu); + if (skel != NULL) + { + Dwarf_Die skeldie = CUDIE (skel); + res = INTUSE(dwarf_getsrcfiles) (&skeldie, files, nfiles); + cu->files = skel->files; + } + } + } + else + { + Dwarf_Lines *lines; + size_t nlines; + + /* Let the more generic function do the work. It'll create more + data but that will be needed in an real program anyway. */ + res = INTUSE(dwarf_getsrclines) (cudie, &lines, &nlines); + } } else if (cu->files != (void *) -1l) /* We already have the information. */ |