[PATCH 2/2] gdb: testsuite: fix failed testcases in gdb.base/jit-elf.exp

[Tiezhu Yang <yangtiezhu@loongson.cn>]

If /proc/sys/kernel/yama/ptrace_scope is 0 or you are root user,
When execute the following command:

  make check-gdb TESTS="gdb.base/jit-elf.exp"

we can see the following messages in gdb/testsuite/gdb.log:

  attach 3431435
  ...
  Unable to read JIT descriptor from remote memory
  0x00007fafc9384334 in ?? ()
  (gdb) FAIL: gdb.base/jit-elf.exp: can spawn for attach

or

  attach 1155345
  ...
  Unsupported JIT protocol version 0 in descriptor (expected 1)
  0x00007f01d130337a in clock_nanosleep@GLIBC_2.2.5 () from /lib64/libc.so.6
  (gdb) FAIL: gdb.base/jit-elf.exp: can spawn for attach

handle the cases related with "*JIT*" in can_spawn_for_attach to
fix the above failed testcases.

If /proc/sys/kernel/yama/ptrace_scope is 1 and you are normal user,
When execute the following command:

  make check-gdb TESTS="gdb.base/jit-elf.exp"

we can see the following messages in gdb/testsuite/gdb.log:

  attach 1350549
  A program is being debugged already.  Kill it? (y or n) y
  Attaching to program: /home/yangtiezhu/build/gdb/testsuite/outputs/gdb.base/jit-elf/jit-elf-main, process 1350549
  ptrace: Operation not permitted.
  (gdb) FAIL: gdb.base/jit-elf.exp: can spawn for attach

also handle the above case in can_spawn_for_attach.

Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
---
 gdb/testsuite/lib/gdb.exp | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/gdb/testsuite/lib/gdb.exp b/gdb/testsuite/lib/gdb.exp
index f21b22c..8db5d1a 100644
--- a/gdb/testsuite/lib/gdb.exp
+++ b/gdb/testsuite/lib/gdb.exp
@@ -5119,6 +5119,11 @@ gdb_caching_proc can_spawn_for_attach {
           kill_wait_spawned_process $test_spawn_id
           return 0
         }
+        -re -wrap "Attaching to program: .*, process $test_pid\r\n.*ptrace: Operation not permitted\\." {
+          unsupported "$gdb_test_name (Operation not permitted)"
+          kill_wait_spawned_process $test_spawn_id
+          return 0
+        }
         -re -wrap "Attaching to process $test_pid\r\n.*Attaching to process $test_pid failed" {
           unsupported "$gdb_test_name (Attaching to process failed)"
           kill_wait_spawned_process $test_spawn_id
@@ -5128,6 +5133,10 @@ gdb_caching_proc can_spawn_for_attach {
           kill_wait_spawned_process $test_spawn_id
           return 1
         }
+        -re -wrap ".*JIT.*" {
+          kill_wait_spawned_process $test_spawn_id
+          return 1
+        }
         -re "A program is being debugged already.  Kill it. .y or n. " {
           send_gdb "y\n"
           exp_continue
-- 
2.1.0