[binutils-gdb/binutils-2_38-branch] libctf: tests: prune warnings from compiler output

[Nick Alcock <nix@sourceware.org>]

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=b8a2baa80b14501113e7a3baf606c4f13a86b419

commit b8a2baa80b14501113e7a3baf606c4f13a86b419
Author: Nick Alcock <nick.alcock@oracle.com>
Date:   Sat Jun 11 13:07:18 2022 +0100

    libctf: tests: prune warnings from compiler output
    
    We were failing to call prune_warnings appropriately, leading to
    false-positive test failures on some platforms (observed on
    sparclinux).
    
    libctf/ChangeLog:
    
            * testsuite/lib/ctf-lib.exp: Prune warnings from compiler and
            linker output.
            * testsuite/libctf-regression/libctf-repeat-cu.exp: Likewise,
            and ar output too.

Diff:
---
 libctf/testsuite/lib/ctf-lib.exp                        | 4 ++--
 libctf/testsuite/libctf-regression/libctf-repeat-cu.exp | 8 ++++----
 2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/libctf/testsuite/lib/ctf-lib.exp b/libctf/testsuite/lib/ctf-lib.exp
index e7552ed6ec7..6c55bbe52aa 100644
--- a/libctf/testsuite/lib/ctf-lib.exp
+++ b/libctf/testsuite/lib/ctf-lib.exp
@@ -181,7 +181,7 @@ proc run_lookup_test { name } {
     }
 
     # Compile and link the lookup program.
-    set comp_output [compile_link_one_host_cc $opts(lookup) "tmpdir/lookup" "libctf.la"]
+    set comp_output [prune_warnings [compile_link_one_host_cc $opts(lookup) "tmpdir/lookup" "libctf.la"]]
 
     if { $comp_output != ""} {
 	send_log "compilation of lookup program $opts(lookup) failed with <$comp_output>"
@@ -217,7 +217,7 @@ proc run_lookup_test { name } {
 	    }
 	}
 
-	set comp_output [run_host_cmd "$CC_FOR_TARGET" "$CFLAGS_FOR_TARGET $lookup_flags [concat $src] -o $lookup_output"]
+	set comp_output [prune_warnings [run_host_cmd "$CC_FOR_TARGET" "$CFLAGS_FOR_TARGET $lookup_flags [concat $src] -o $lookup_output"]]
 
 	if { $comp_output != ""} {
 	    send_log "compilation of CTF program [concat $src] failed with <$comp_output>"
diff --git a/libctf/testsuite/libctf-regression/libctf-repeat-cu.exp b/libctf/testsuite/libctf-regression/libctf-repeat-cu.exp
index becee958ca3..4a5d2d1d03b 100644
--- a/libctf/testsuite/libctf-regression/libctf-repeat-cu.exp
+++ b/libctf/testsuite/libctf-regression/libctf-repeat-cu.exp
@@ -52,12 +52,12 @@ proc one_lib_compile { src flags obj archive } {
 	set src [file join $subsrcdir $src]
     }
 
-    set comp_output [run_host_cmd "$CC_FOR_TARGET" "$CFLAGS_FOR_TARGET $flags -gctf -fPIC -c -o $obj $src"]
+    set comp_output [prune_warnings [run_host_cmd "$CC_FOR_TARGET" "$CFLAGS_FOR_TARGET $flags -gctf -fPIC -c -o $obj $src"]]
     if { $comp_output != "" } {
 	return $comp_output
     }
 
-    set ar_output [run_host_cmd "$AR" "rc $archive $obj"]
+    set ar_output [prune_warnings [run_host_cmd "$AR" "rc $archive $obj"]]
     return $comp_output
 }
 
@@ -94,7 +94,7 @@ if [is_remote host] {
     set src [file join $subsrcdir libctf-repeat-cu-main.c]
 }
 
-set comp_output [run_host_cmd "$CC_FOR_TARGET" "$CFLAGS_FOR_TARGET -gctf -fPIC -shared -o tmpdir/libctf-repeat-cu-main.so $src tmpdir/a.a tmpdir/b.a tmpdir/c.a"]
+set comp_output [prune_warnings [run_host_cmd "$CC_FOR_TARGET" "$CFLAGS_FOR_TARGET -gctf -fPIC -shared -o tmpdir/libctf-repeat-cu-main.so $src tmpdir/a.a tmpdir/b.a tmpdir/c.a"]]
 if { $comp_output != "" } {
     send_log "compilation of tmpdir/libctf-repeat-cu-main.so failed"
     perror "compilation of tmpdir/libctf-repeat-cu-main.so failed"
@@ -102,7 +102,7 @@ if { $comp_output != "" } {
     return $comp_output
 }
 
-set comp_output [run_host_cmd "$OBJDUMP" "--ctf tmpdir/libctf-repeat-cu-main.so > tmpdir/dump.out"]
+set comp_output [prune_warnings [run_host_cmd "$OBJDUMP" "--ctf tmpdir/libctf-repeat-cu-main.so > tmpdir/dump.out"]]
 
 if { [regexp_diff "tmpdir/dump.out"  [file join $subsrcdir libctf-repeat-cu.d] ] } {
     fail $testname