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Ignore DW_FORM_ref_addr [Bug #17052]

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Ignore `DW_FORM_ref_addr` form and other forms that are not supposed
to be used currently.
This commit is contained in:
xtkoba+ruby@gmail.com 2021-08-13 13:45:53 +00:00 committed by Nobuyoshi Nakada
parent 29dd70492e
commit 72317b333b
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GPG key ID: 7CD2805BFA3770C6
1 changed files with 20 additions and 3 deletions
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23
addr2line.c
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@ -1593,14 +1593,31 @@ di_read_cu(DebugInfoReader *reader)
}
static void
read_abstract_origin(DebugInfoReader *reader, uint64_t abstract_origin, line_info_t *line)
read_abstract_origin(DebugInfoReader *reader, uint64_t form, uint64_t abstract_origin, line_info_t *line)
{
const char *p = reader->p;
const char *q = reader->q;
int level = reader->level;
DIE die;
reader->p = reader->current_cu + abstract_origin;
switch (form) {
case DW_FORM_ref1:
case DW_FORM_ref2:
case DW_FORM_ref4:
case DW_FORM_ref8:
case DW_FORM_ref_udata:
reader->p = reader->current_cu + abstract_origin;
break;
case DW_FORM_ref_addr:
goto finish; /* not supported yet */
case DW_FORM_ref_sig8:
goto finish; /* not supported yet */
case DW_FORM_ref_sup4:
case DW_FORM_ref_sup8:
goto finish; /* not supported yet */
default:
goto finish;
}
if (!di_read_die(reader, &die)) goto finish;
/* enumerate abbrev */
@ -1665,7 +1682,7 @@ debug_info_read(DebugInfoReader *reader, int num_traces, void **traces,
/* 1 or 3 */
break; /* goto skip_die; */
case DW_AT_abstract_origin:
read_abstract_origin(reader, v.as.uint64, &line);
read_abstract_origin(reader, v.form, v.as.uint64, &line);
break; /* goto skip_die; */
}
}