[gdb/testsuite] Unsupport gdb.rust for remote host
With test-case gdb.rust/watch.exp and remote host I run into:
...
Executing on host: gcc watch.rs -g -lm -o watch (timeout = 300)
...
ld:watch.rs: file format not recognized; treating as linker script
ld:watch.rs:1: syntax error
...
UNTESTED: gdb.rust/watch.exp: failed to prepare
...
The problem is that find_rustc returns "" for remote host, so we fall back to gcc, which fails.
Fix this by returning 0 in allow_rust_tests for remote host.
Tested on x86_64-linux.
diff --git a/gdb/testsuite/lib/gdb.exp b/gdb/testsuite/lib/gdb.exp
index 14ce39e..0d06401 100644
--- a/gdb/testsuite/lib/gdb.exp
+++ b/gdb/testsuite/lib/gdb.exp
@@ -2479,6 +2479,11 @@
return 0
}
+ if { [is_remote host] } {
+ # Proc find_rustc returns "" for remote host.
+ return 0
+ }
+
# The rust compiler does not support "-m32", skip.
global board board_info
set board [target_info name]
