[committed][gdb/testsuite] Fix gdb.base/dcache-flush.exp

[Tom de Vries via Gdb-patches <gdb-patches@sourceware.org>]

Hi,

When running test-case gdb.base/dcache-flush.exp on ubuntu 18.04.5, I run into:
...
(gdb) PASS: gdb.base/dcache-flush.exp: p var2
info dcache^M
Dcache 4096 lines of 64 bytes each.^M
Contains data for Thread 0x7ffff7fc6b80 (LWP 3551)^M
Line 0: address 0x7fffffffd4c0 [47 hits]^M
Line 1: address 0x7fffffffd500 [31 hits]^M
Line 2: address 0x7fffffffd5c0 [7 hits]^M
Cache state: 3 active lines, 85 hits^M
(gdb) FAIL: gdb.base/dcache-flush.exp: check dcache before flushing
...
The regexp expects "Contains data for process $decimal".

This is another case of thread_db_target::pid_to_str being used.

Fix this by updating the regexp.

Tested on x86_64-linux.

Committed to trunk.

Thanks,
- Tom

[gdb/testsuite] Fix gdb.base/dcache-flush.exp

---
 gdb/testsuite/gdb.base/dcache-flush.exp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/gdb/testsuite/gdb.base/dcache-flush.exp b/gdb/testsuite/gdb.base/dcache-flush.exp
index 4ac10b9fab1..ff59b2bb7ae 100644
--- a/gdb/testsuite/gdb.base/dcache-flush.exp
+++ b/gdb/testsuite/gdb.base/dcache-flush.exp
@@ -34,7 +34,7 @@ gdb_test "p var2" " = 3"
 gdb_test "info dcache" \
     [multi_line \
 	 "Dcache $decimal lines of $decimal bytes each." \
-	 "Contains data for process $decimal" \
+	 "Contains data for (process $decimal|Thread \[^\r\n\]*)" \
 	 "Line 0: address $hex \[$decimal hits\].*" \
 	 "Cache state: $decimal active lines, $decimal hits" ] \
     "check dcache before flushing"
@@ -58,7 +58,7 @@ with_test_prefix "refilling" {
 gdb_test "info dcache" \
     [multi_line \
 	 "Dcache $decimal lines of $decimal bytes each." \
-	 "Contains data for process $decimal" \
+	 "Contains data for (process $decimal|Thread \[^\r\n\]*)" \
 	 "Line 0: address $hex \[$decimal hits\].*" \
 	 "Cache state: $decimal active lines, $decimal hits" ] \
     "check dcache before refilling"