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Patch to readelf dwarf2 support
- To: binutils at sources dot redhat dot com
- Subject: Patch to readelf dwarf2 support
- From: Jason Merrill <jason at redhat dot com>
- Date: Mon, 4 Dec 2000 16:33:52 GMT
This patch updates readelf to support linkonce.wi sections (which GCC may
one day use) and emits info about the CU before failing (which I found
useful for debugging bogus output from GCC). Applied.
2000-12-04 Jason Merrill <jason@redhat.com>
* readelf.c (process_section_headers): Handle linkonce.wi sections.
(display_debug_section): Likewise.
(display_debug_info): Display CU header before bailing.
*** readelf.c.~1~ Mon Dec 4 16:23:02 2000
--- readelf.c Mon Dec 4 16:23:36 2000
*************** process_section_headers (file)
*** 2765,2770 ****
--- 2765,2774 ----
)
request_dump (i, DEBUG_DUMP);
}
+ /* linkonce section to be combined with .debug_info at link time. */
+ else if ((do_debugging || do_debug_info)
+ && strncmp (name, ".gnu.linkonce.wi.", 17) == 0)
+ request_dump (i, DEBUG_DUMP);
else if (do_debug_frames && strcmp (name, ".eh_frame") == 0)
request_dump (i, DEBUG_DUMP);
}
*************** display_debug_info (section, start, file
*** 6323,6340 ****
cu_offset = start - section_begin;
start += compunit.cu_length + sizeof (external->cu_length);
if (compunit.cu_version != 2)
{
warn (_("Only version 2 DWARF debug information is currently supported.\n"));
continue;
}
- printf (_(" Compilation Unit:\n"));
- printf (_(" Length: %ld\n"), compunit.cu_length);
- printf (_(" Version: %d\n"), compunit.cu_version);
- printf (_(" Abbrev Offset: %ld\n"), compunit.cu_abbrev_offset);
- printf (_(" Pointer Size: %d\n"), compunit.cu_pointer_size);
-
if (first_abbrev != NULL)
free_abbrevs ();
--- 6327,6344 ----
cu_offset = start - section_begin;
start += compunit.cu_length + sizeof (external->cu_length);
+ printf (_(" Compilation Unit @ %lx:\n"), cu_offset);
+ printf (_(" Length: %ld\n"), compunit.cu_length);
+ printf (_(" Version: %d\n"), compunit.cu_version);
+ printf (_(" Abbrev Offset: %ld\n"), compunit.cu_abbrev_offset);
+ printf (_(" Pointer Size: %d\n"), compunit.cu_pointer_size);
+
if (compunit.cu_version != 2)
{
warn (_("Only version 2 DWARF debug information is currently supported.\n"));
continue;
}
if (first_abbrev != NULL)
free_abbrevs ();
*************** display_debug_section (section, file)
*** 7044,7049 ****
--- 7048,7055 ----
"debug section data");
/* See if we know how to display the contents of this section. */
+ if (strncmp (name, ".gnu.linkonce.wi.", 17) == 0)
+ name = ".debug_info";
for (i = NUM_ELEM (debug_displays); i--;)
if (strcmp (debug_displays[i].name, name) == 0)
{