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display_debug_lines_decoded

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The directory_table strnlen used the negative of the proper size.  After
fixing that I realised we don't need strnlen here.

	* dwarf.c (display_debug_lines_decoded): Don't use strnlen when
	we have already checked for NUL termination.
This commit is contained in:
Alan Modra
2021-05-15 14:54:55 +09:30
parent 37195e23e7
commit 56051e28a3
2 changed files with 9 additions and 4 deletions
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5
binutils/ChangeLog
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@ -1,3 +1,8 @@
2021-05-15 Alan Modra <amodra@gmail.com>
* dwarf.c (display_debug_lines_decoded): Don't use strnlen when
we have already checked for NUL termination.
2021-05-15 Alan Modra <amodra@gmail.com> 2021-05-15 Alan Modra <amodra@gmail.com>
* dwarf.c (read_debug_line_header): Delete initial_length_size. * dwarf.c (read_debug_line_header): Delete initial_length_size.

8
binutils/dwarf.c
View File

@ -5042,8 +5042,8 @@ display_debug_lines_decoded (struct dwarf_section * section,
while (*ptr_directory_table != 0) while (*ptr_directory_table != 0)
{ {
directory_table[i] = ptr_directory_table; directory_table[i] = ptr_directory_table;
ptr_directory_table += strnlen ((char *) ptr_directory_table, ptr_directory_table
ptr_directory_table - end) + 1; += strlen ((char *) ptr_directory_table) + 1;
i++; i++;
} }
} }
@ -5082,8 +5082,8 @@ display_debug_lines_decoded (struct dwarf_section * section,
while (*ptr_file_name_table != 0) while (*ptr_file_name_table != 0)
{ {
file_table[i].name = ptr_file_name_table; file_table[i].name = ptr_file_name_table;
ptr_file_name_table += strnlen ((char *) ptr_file_name_table, ptr_file_name_table
end - ptr_file_name_table) + 1; += strlen ((char *) ptr_file_name_table) + 1;
/* We are not interested in directory, time or size. */ /* We are not interested in directory, time or size. */
READ_ULEB (file_table[i].directory_index, READ_ULEB (file_table[i].directory_index,