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Diffstat (limited to 'binutils/dwarf.c')
-rw-r--r--binutils/dwarf.c150
1 files changed, 147 insertions, 3 deletions
diff --git a/binutils/dwarf.c b/binutils/dwarf.c
index ce2602b..3d279079 100644
--- a/binutils/dwarf.c
+++ b/binutils/dwarf.c
@@ -2131,6 +2131,10 @@ get_type_abbrev_from_form (unsigned long form,
}
break;
+ case DW_FORM_ref_sup4:
+ case DW_FORM_ref_sup8:
+ break;
+
case DW_FORM_ref1:
case DW_FORM_ref2:
case DW_FORM_ref4:
@@ -2387,7 +2391,7 @@ display_discr_list (unsigned long form,
default:
printf ("<corrupt>\n");
- warn (_("corrupt discr_list - unrecognised discriminant byte %#x\n"),
+ warn (_("corrupt discr_list - unrecognized discriminant byte %#x\n"),
discriminant);
return;
}
@@ -2460,6 +2464,7 @@ read_and_display_attr_value (unsigned long attribute,
SAFE_BYTE_GET_AND_INC (uvalue, data, pointer_size, end);
break;
+ case DW_FORM_strp_sup:
case DW_FORM_strp:
case DW_FORM_line_strp:
case DW_FORM_sec_offset:
@@ -2483,6 +2488,7 @@ read_and_display_attr_value (unsigned long attribute,
SAFE_BYTE_GET_AND_INC (uvalue, data, 2, end);
break;
+ case DW_FORM_ref_sup4:
case DW_FORM_ref4:
case DW_FORM_data4:
SAFE_BYTE_GET_AND_INC (uvalue, data, 4, end);
@@ -2536,6 +2542,7 @@ read_and_display_attr_value (unsigned long attribute,
case DW_FORM_ref1:
case DW_FORM_ref2:
case DW_FORM_ref4:
+ case DW_FORM_ref_sup4:
case DW_FORM_ref_udata:
if (!do_loc)
printf ("%c<0x%s>", delimiter, dwarf_vmatoa ("x", uvalue + cu_offset));
@@ -2563,6 +2570,7 @@ read_and_display_attr_value (unsigned long attribute,
printf ("%c%s", delimiter, dwarf_vmatoa ("d", implicit_const));
break;
+ case DW_FORM_ref_sup8:
case DW_FORM_ref8:
case DW_FORM_data8:
if (!do_loc)
@@ -2755,8 +2763,13 @@ read_and_display_attr_value (unsigned long attribute,
}
break;
+ case DW_FORM_strp_sup:
+ if (!do_loc)
+ printf ("%c<0x%s>", delimiter, dwarf_vmatoa ("x", uvalue + cu_offset));
+ break;
+
default:
- warn (_("Unrecognized form: %lu\n"), form);
+ warn (_("Unrecognized form: 0x%lx\n"), form);
break;
}
@@ -4335,6 +4348,81 @@ display_formatted_table (unsigned char * data,
}
static int
+display_debug_sup (struct dwarf_section * section,
+ void * file ATTRIBUTE_UNUSED)
+{
+ unsigned char * start = section->start;
+ unsigned char * end = section->start + section->size;
+ unsigned int version;
+ char is_supplementary;
+ const unsigned char * sup_filename;
+ size_t sup_filename_len;
+ unsigned int num_read;
+ int status;
+ dwarf_vma checksum_len;
+
+
+ introduce (section, TRUE);
+ if (section->size < 4)
+ {
+ error (_("corrupt .debug_sup section: size is too small\n"));
+ return 0;
+ }
+
+ /* Read the data. */
+ SAFE_BYTE_GET_AND_INC (version, start, 2, end);
+ if (version < 5)
+ warn (_("corrupt .debug_sup section: version < 5"));
+
+ SAFE_BYTE_GET_AND_INC (is_supplementary, start, 1, end);
+ if (is_supplementary != 0 && is_supplementary != 1)
+ warn (_("corrupt .debug_sup section: is_supplementary not 0 or 1\n"));
+
+ sup_filename = start;
+ if (is_supplementary && sup_filename[0] != 0)
+ warn (_("corrupt .debug_sup section: filename not empty in supplementary section\n"));
+
+ sup_filename_len = strnlen ((const char *) start, end - start);
+ if (sup_filename_len == (size_t) (end - start))
+ {
+ error (_("corrupt .debug_sup section: filename is not NUL terminated\n"));
+ return 0;
+ }
+ start += sup_filename_len + 1;
+
+ checksum_len = read_leb128 (start, end, FALSE /* unsigned */, & num_read, & status);
+ if (status)
+ {
+ error (_("corrupt .debug_sup section: bad LEB128 field for checksum length\n"));
+ checksum_len = 0;
+ }
+ start += num_read;
+ if (checksum_len > (dwarf_vma) (end - start))
+ {
+ error (_("corrupt .debug_sup section: checksum length is longer than the remaining section length\n"));
+ checksum_len = end - start;
+ }
+ else if (checksum_len < (dwarf_vma) (end - start))
+ {
+ warn (_("corrupt .debug_sup section: there are 0x%lx extra, unused bytes at the end of the section\n"),
+ (long) ((end - start) - checksum_len));
+ }
+
+ printf (_(" Version: %u\n"), version);
+ printf (_(" Is Supp: %u\n"), is_supplementary);
+ printf (_(" Filename: %s\n"), sup_filename);
+ printf (_(" Checksum Len: %lu\n"), (long) checksum_len);
+ if (checksum_len > 0)
+ {
+ printf (_(" Checksum: "));
+ while (checksum_len--)
+ printf ("0x%x ", * start++ );
+ printf ("\n");
+ }
+ return 1;
+}
+
+static int
display_debug_lines_raw (struct dwarf_section * section,
unsigned char * data,
unsigned char * end,
@@ -11131,9 +11219,62 @@ load_dwo_file (const char * main_filename, const char * name, const char * dir,
return separate_handle;
}
+static void
+load_debug_sup_file (const char * main_filename, void * file)
+{
+ if (! load_debug_section (debug_sup, file))
+ return; /* No .debug_sup section. */
+
+ struct dwarf_section * section;
+ section = & debug_displays [debug_sup].section;
+ assert (section != NULL);
+
+ if (section->start == NULL || section->size < 5)
+ {
+ warn (_(".debug_sup section is corrupt/empty\n"));
+ return;
+ }
+
+ if (section->start[2] != 0)
+ return; /* This is a supplementary file. */
+
+ const char * filename = (const char *) section->start + 3;
+ if (strnlen (filename, section->size - 3) == section->size - 3)
+ {
+ warn (_("filename in .debug_sup section is corrupt\n"));
+ return;
+ }
+
+ if (filename[0] != '/' && strchr (main_filename, '/'))
+ {
+ char * new_name;
+ if (asprintf (& new_name, "%.*s/%s",
+ (int) (strrchr (main_filename, '/') - main_filename),
+ main_filename,
+ filename) < 3)
+ warn (_("unable to construct path for supplementary debug file"));
+ else
+ filename = new_name;
+ }
+
+ void * handle;
+ handle = open_debug_file (filename);
+ if (handle == NULL)
+ {
+ warn (_("unable to open file '%s' referenced from .debug_sup section\n"), filename);
+ return;
+ }
+
+ printf (_("%s: Found supplementary debug file: %s\n\n"), main_filename, filename);
+
+ /* FIXME: Compare the checksums, if present. */
+ add_separate_debug_file (filename, handle);
+}
+
/* Load a debuglink section and/or a debugaltlink section, if either are present.
Recursively check the loaded files for more of these sections.
- FIXME: Should also check for DWO_* entries in the newlu loaded files. */
+ Also follow any links in .debug_sup sections.
+ FIXME: Should also check for DWO_* entries in the newly loaded files. */
static void
check_for_and_load_links (void * file, const char * filename)
@@ -11175,6 +11316,8 @@ check_for_and_load_links (void * file, const char * filename)
first_separate_info->filename);
}
}
+
+ load_debug_sup_file (filename, file);
}
/* Load the separate debug info file(s) attached to FILE, if any exist.
@@ -11541,6 +11684,7 @@ struct dwarf_section_display debug_displays[] =
{ { ".debug_tu_index", "", NO_ABBREVS }, display_cu_index, &do_debug_cu_index, FALSE },
{ { ".gnu_debuglink", "", NO_ABBREVS }, display_debug_links, &do_debug_links, FALSE },
{ { ".gnu_debugaltlink", "", NO_ABBREVS }, display_debug_links, &do_debug_links, FALSE },
+ { { ".debug_sup", "", NO_ABBREVS }, display_debug_sup, &do_debug_links, FALSE },
/* Separate debug info files can containt their own .debug_str section,
and this might be in *addition* to a .debug_str section already present
in the main file. Hence we need to have two entries for .debug_str. */
generated by cgit v1.1 at 2024-11-22 15:06:03 +0000