From 1d325ec1dc714a85e00d249f2e3ddc1bcd4456bf Mon Sep 17 00:00:00 2001 From: Daniel Jacobowitz Date: Wed, 20 Aug 2008 19:27:58 +0000 Subject: [PATCH] * dwarf2read.c (read_die_and_children): Ignore NULL DIEs. (read_die_and_siblings): Likewise. Do not add padding DIEs to the sibling list. (read_full_die): Do not allocate DIEs for abbrev 0. (follow_die_ref): Correct error message. --- gdb/ChangeLog | 8 ++++++++ gdb/dwarf2read.c | 32 ++++++++++++++------------------ 2 files changed, 22 insertions(+), 18 deletions(-) diff --git a/gdb/ChangeLog b/gdb/ChangeLog index 9194f04a0ab..064e4c2a085 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,3 +1,11 @@ +2008-08-20 Daniel Jacobowitz + + * dwarf2read.c (read_die_and_children): Ignore NULL DIEs. + (read_die_and_siblings): Likewise. Do not add padding DIEs to the + sibling list. + (read_full_die): Do not allocate DIEs for abbrev 0. + (follow_die_ref): Correct error message. + 2008-08-20 Pedro Alves * linespec.c (symtab_from_filename): Also throw NOT_FOUND_ERROR if diff --git a/gdb/dwarf2read.c b/gdb/dwarf2read.c index 8f1062d90a7..eea357a397e 100644 --- a/gdb/dwarf2read.c +++ b/gdb/dwarf2read.c @@ -5141,6 +5141,11 @@ read_die_and_children (gdb_byte *info_ptr, bfd *abfd, int has_children; cur_ptr = read_full_die (&die, abfd, info_ptr, cu, &has_children); + if (die == NULL) + { + *new_info_ptr = cur_ptr; + return NULL; + } store_in_ref_table (die->offset, die, cu); if (has_children) @@ -5180,24 +5185,18 @@ read_die_and_siblings (gdb_byte *info_ptr, bfd *abfd, struct die_info *die = read_die_and_children (cur_ptr, abfd, cu, &cur_ptr, parent); - if (!first_die) - { - first_die = die; - } - else - { - last_sibling->sibling = die; - } - - if (die->tag == 0) + if (die == NULL) { *new_info_ptr = cur_ptr; return first_die; } + + if (!first_die) + first_die = die; else - { - last_sibling = die; - } + last_sibling->sibling = die; + + last_sibling = die; } } @@ -6048,10 +6047,7 @@ read_full_die (struct die_info **diep, bfd *abfd, gdb_byte *info_ptr, info_ptr += bytes_read; if (!abbrev_number) { - die = dwarf_alloc_die (); - die->tag = 0; - die->abbrev = abbrev_number; - *diep = die; + *diep = NULL; *has_children = 0; return info_ptr; } @@ -9240,7 +9236,7 @@ follow_die_ref (struct die_info *src_die, struct attribute *attr, error (_("Dwarf Error: Cannot find DIE at 0x%lx referenced from DIE " "at 0x%lx [in module %s]"), - (long) src_die->offset, (long) offset, cu->objfile->name); + (long) offset, (long) src_die->offset, cu->objfile->name); return NULL; } -- 2.30.2