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Use child_path to determine if an object file is under a sysroot.

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This fixes the case where the sysroot happens to end in a trailing
'/'.  Note that the path returned from child_path always skips over
the directory separator at the start of the base path, so a separator
must always be explicitly added before the base path.

gdb/ChangeLog:

	* symfile.c (find_separate_debug_file): Use child_path to
	determine if an object file is under a sysroot.
This commit is contained in:
John Baldwin
2019-02-12 13:56:16 -08:00
parent efac4bfe0b
commit cd4b78483c
2 changed files with 12 additions and 5 deletions
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5
gdb/ChangeLog
View File

@ -1,3 +1,8 @@
2019-02-12 John Baldwin <jhb@FreeBSD.org>
* symfile.c (find_separate_debug_file): Use child_path to
determine if an object file is under a sysroot.
2019-02-12 John Baldwin <jhb@FreeBSD.org>
* Makefile.in (SUBDIR_UNITTESTS_SRCS): Add

12
gdb/symfile.c
View File

@ -57,6 +57,7 @@
#include "gdb_bfd.h"
#include "cli/cli-utils.h"
#include "common/byte-vector.h"
#include "common/pathstuff.h"
#include "common/selftest.h"
#include "cli/cli-style.h"
#include "common/forward-scope-exit.h"
@ -1452,16 +1453,16 @@ find_separate_debug_file (const char *dir,
if (separate_debug_file_exists (debugfile, crc32, objfile))
return debugfile;
const char *base_path;
if (canon_dir != NULL
&& filename_ncmp (canon_dir, gdb_sysroot,
strlen (gdb_sysroot)) == 0
&& IS_DIR_SEPARATOR (canon_dir[strlen (gdb_sysroot)]))
&& (base_path = child_path (gdb_sysroot, canon_dir)) != NULL)
{
/* If the file is in the sysroot, try using its base path in
the global debugfile directory. */
debugfile = target_prefix ? "target:" : "";
debugfile += debugdir.get ();
debugfile += (canon_dir + strlen (gdb_sysroot));
debugfile += "/";
debugfile += base_path;
debugfile += "/";
debugfile += debuglink;
@ -1473,7 +1474,8 @@ find_separate_debug_file (const char *dir,
debugfile = target_prefix ? "target:" : "";
debugfile += gdb_sysroot;
debugfile += debugdir.get ();
debugfile += (canon_dir + strlen (gdb_sysroot));
debugfile += "/";
debugfile += base_path;
debugfile += "/";
debugfile += debuglink;