Remove gdb_sysroot NULL checks

Since fed040c6a50399617d8265cbddc7fd21b3f134ef gdb_sysroot is
never NULL.  This commit removes all gdb_sysroot NULL checks.

gdb/ChangeLog:

	* exec.c (exec_file_locate_attach): Remove gdb_sysroot NULL check.
	* infrun.c (follow_exec): Likewise.
	* remote.c (remote_filesystem_is_local): Likewise.
	* solib.c (solib_find_1): Likewise.

1 files changed, 12 insertions, 17 deletions

diff --git a/gdb/solib.c b/gdb/solib.c
index 0010c2f..ed1bc25 100644
--- a/gdb/solib.c
+++ b/gdb/solib.c
@@ -159,23 +159,18 @@ solib_find_1 (char *in_pathname, int *fd, int is_solib)
   struct cleanup *old_chain = make_cleanup (null_cleanup, NULL);
   char *sysroot = gdb_sysroot;
 
-  if (sysroot != NULL)
-    {
-      /* If the absolute prefix starts with "target:" but the
-	 filesystem accessed by the target_fileio_* methods
-	 is the local filesystem then we strip the "target:"
-	 prefix now and work with the local filesystem.  This
-	 ensures that the same search algorithm is used for
-	 all local files regardless of whether a "target:"
-	 prefix was used.  */
-      if (is_target_filename (sysroot) && target_filesystem_is_local ())
-	sysroot += strlen (TARGET_SYSROOT_PREFIX);
-
-      if (*sysroot == '\0')
-	sysroot = NULL;
-    }
-
-  if (sysroot != NULL)
+  /* If the absolute prefix starts with "target:" but the filesystem
+     accessed by the target_fileio_* methods is the local filesystem
+     then we strip the "target:" prefix now and work with the local
+     filesystem.  This ensures that the same search algorithm is used
+     for all local files regardless of whether a "target:" prefix was
+     used.  */
+  if (is_target_filename (sysroot) && target_filesystem_is_local ())
+    sysroot += strlen (TARGET_SYSROOT_PREFIX);
+
+  if (*sysroot == '\0')
+    sysroot = NULL;
+  else
     {
       int prefix_len = strlen (sysroot);