[binutils-gdb] gdb/testsuite: Update gdb.base/so-impl-ld.exp

[Bruno Larsen <blarsen@sourceware.org>]

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=8fa9bc6a030c9a41eb8cf6f0f66043e02005b291

commit 8fa9bc6a030c9a41eb8cf6f0f66043e02005b291
Author: Bruno Larsen <blarsen@redhat.com>
Date:   Wed Jul 20 16:44:37 2022 -0300

    gdb/testsuite: Update gdb.base/so-impl-ld.exp
    
    gdb.base/so-impl-ld.exp was setup assuming that the compiler would add
    epilogue information and that GDB would stop in the } line.  This would
    make clang tests fail like so:
    
     step^M
     solib_main (arg=10000) at ../../../common/git-repos/binutils-gdb/gdb/testsuite/gdb.base/solib1.c:7^M
     7|__  return arg*arg;|__|___/* HERE */^M
     (gdb) PASS: gdb.base/so-impl-ld.exp: step into solib call
     next^M
     main () at ../../../common/git-repos/binutils-gdb/gdb/testsuite/gdb.base/so-impl-ld.c:22^M
     22|_  return 0;^M
     (gdb) FAIL: gdb.base/so-impl-ld.exp: step in solib call
     next^M
     0x00007ffff7cef560 in __libc_start_call_main () from /lib64/libc.so.6^M
     (gdb) FAIL: gdb.base/so-impl-ld.exp: step out of solib call
    
    This patch changes it so solib_main has 2 lines where GDB can stop
    regardless of compiler choices, and updates the exp file to
    generically deal with unknown number of steps until leaving that
    function.

Diff:
---
 gdb/testsuite/gdb.base/so-impl-ld.exp | 13 ++-----------
 gdb/testsuite/gdb.base/solib1.c       |  5 +++--
 2 files changed, 5 insertions(+), 13 deletions(-)

diff --git a/gdb/testsuite/gdb.base/so-impl-ld.exp b/gdb/testsuite/gdb.base/so-impl-ld.exp
index 372b18f3915..3c5d1070a5b 100644
--- a/gdb/testsuite/gdb.base/so-impl-ld.exp
+++ b/gdb/testsuite/gdb.base/so-impl-ld.exp
@@ -56,21 +56,12 @@ gdb_test "step" "solib_main .arg=10000. at.*${libfile}.c:${decimal}.* HERE .*" \
 
 # Verify that we can step within the shlib call.
 #
-gdb_test "next" "${decimal}\[ \t\]*\}.* STEP .*" "step in solib call"
+gdb_test "next" "${decimal}\[ \t\]*return ans;.* STEP .*" "step in solib call"
 
 # Verify that we can step out of the shlib call, and back out into
 # the caller.
 #
-gdb_test_multiple "next" "step out of solib call" {
-    -re "0x\[0-9a-f\]*\[ \t\]*9\[ \t\]*.*$gdb_prompt $" {
-	gdb_test "next" \
-	    "main .. at.*so-impl-ld.c:22.*" \
-	    "step out of solib call"
-    }
-    -re "main .. at.*so-impl-ld.c:22.*$gdb_prompt $" {
-	pass "step out of solib call"
-    }
-}
+gdb_step_until ".*main .. at.*return 0;.*" "step out of solib call"
 
 gdb_exit
 return 0
diff --git a/gdb/testsuite/gdb.base/solib1.c b/gdb/testsuite/gdb.base/solib1.c
index 16b72338f26..bf52beec5de 100644
--- a/gdb/testsuite/gdb.base/solib1.c
+++ b/gdb/testsuite/gdb.base/solib1.c
@@ -4,5 +4,6 @@ extern "C"
 int
 solib_main (int arg)
 {
-  return arg*arg;		/* HERE */
-}				/* STEP */
+  int ans = arg*arg;		/* HERE */
+  return ans;			/* STEP */
+}