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addr2line.c: Keep .debug_line_str section as well

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... and properly support DW_FORM_line_strp.

This is a prepartion to support DWARF 5.
This commit is contained in:
Yusuke Endoh 2022-12-21 22:13:22 +09:00
parent ed81d0f5f6
commit 2445a4c5b7
Notes: git 2022-12-22 09:57:25 +00:00 
Merged: https://github.com/ruby/ruby/pull/6980
1 changed files with 9 additions and 6 deletions
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15
addr2line.c
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@ -161,10 +161,11 @@ typedef struct obj_info {
struct dwarf_section debug_ranges;
struct dwarf_section debug_rnglists;
struct dwarf_section debug_str;
struct dwarf_section debug_line_str;
struct obj_info *next;
} obj_info_t;
#define DWARF_SECTION_COUNT 6
#define DWARF_SECTION_COUNT 7
static struct dwarf_section *
obj_dwarf_section_at(obj_info_t *obj, int n)
@ -175,7 +176,8 @@ obj_dwarf_section_at(obj_info_t *obj, int n)
&obj->debug_line,
&obj->debug_ranges,
&obj->debug_rnglists,
&obj->debug_str
&obj->debug_str,
&obj->debug_line_str
};
if (n < 0 || DWARF_SECTION_COUNT <= n) {
abort();
@ -1208,8 +1210,7 @@ debug_info_reader_read_value(DebugInfoReader *reader, uint64_t form, DebugInfoVa
reader->p += v->size;
break;
case DW_FORM_line_strp:
set_uint_value(v, read_uint(reader));
/* *p = reader->file + reader->line->sh_offset + ret; */
set_cstrp_value(v, reader->obj->debug_line_str.ptr, read_uint(reader));
break;
case DW_FORM_ref_sig8:
set_uint_value(v, read_uint64(&reader->p));
@ -1847,7 +1848,8 @@ fill_lines(int num_traces, void **traces, int check_debuglink,
".debug_line",
".debug_ranges",
".debug_rnglists",
".debug_str"
".debug_str",
".debug_line_str"
};
for (j=0; j < DWARF_SECTION_COUNT; j++) {
@ -2104,7 +2106,8 @@ found_mach_header:
"__debug_line",
"__debug_ranges",
"__debug_rnglists",
"__debug_str"
"__debug_str",
"__debug_line_str",
};
struct LP(segment_command) *scmd = (struct LP(segment_command) *)lcmd;
if (strcmp(scmd->segname, "__TEXT") == 0) {