[2.41 PATCH COMMITTED] Fix 31252 gprofng causes testsuite parallel jobs fail

[2.41 PATCH COMMITTED] Fix 31252 gprofng causes testsuite parallel jobs fail

[Sam James]

From: Vladimir Mezentsev <vladimir.mezentsev@oracle.com>

Before running our tests, we made a fake installation into ./tmpdir.
This installation changes libopcodes.la in the build area.
Gas testing may fail if gas and gprofng tests are run in parallel.

I create a script to run gprofng. Inside this script, LD_LIBRARY_PATH,
GPROFNG_SYSCONFDIR are set.
putenv_libcollector_ld_misc() first uses $GPROFNG_PRELOAD_LIBDIRS to create
directories for SP_COLLECTOR_LIBRARY_PATH ($SP_COLLECTOR_LIBRARY_PATH is used
to set up LD_PRELOAD).

gprofng/ChangeLog
2024-01-19  Vladimir Mezentsev  <vladimir.mezentsev@oracle.com>

	PR gprofng/31252
	PR gprofng/30808
	* src/envsets.cc (putenv_libcollector_ld_misc): Use
	$GPROFNG_PRELOAD_LIBDIRS first to build SP_COLLECTOR_LIBRARY_PATH.
	* testsuite/config/default.exp: Create a script to run gprofng.
	* testsuite/lib/display-lib.exp: Fix typo.

(cherry picked from commit 26f557af696726a8556bff12f54e4d05cd7a5034)
---
I've gone ahead and backported this as it's needed for parallel tests
to work correctly on 2.41. Tested and tests now pass when they didn't before.

Thanks!

 gprofng/src/envsets.cc                | 36 +++++++++++++++++++++-----
 gprofng/testsuite/config/default.exp  | 37 +++++++++++++++++++--------
 gprofng/testsuite/lib/display-lib.exp |  4 +--
 3 files changed, 57 insertions(+), 20 deletions(-)

diff --git a/gprofng/src/envsets.cc b/gprofng/src/envsets.cc
index 52d155160fc..40ee39dc328 100644
--- a/gprofng/src/envsets.cc
+++ b/gprofng/src/envsets.cc
@@ -146,20 +146,42 @@ collect::putenv_libcollector_ld_misc ()
   // so that -agentlib:gp-collector works
   // and so that collect -F works with 32/64-bit mix of processes
 
-  // Set GPROFNG_PRELOAD_LIBDIRS
+  StringBuilder sb;
+  sb.append ("SP_COLLECTOR_LIBRARY_PATH=");
+  int len = sb.length ();
+  int cnt = 0;
+  char *fname;
   char *ev = getenv (GPROFNG_PRELOAD_LIBDIRS);
   char *libpath_list = NULL;
-  if (ev == NULL && settings->preload_libdirs == NULL)
+  if (ev)
+    { /* GPROFNG_PRELOAD_LIBDIRS is used only in the gprofng testing.
+       * Use these directories first.  */
+      ev = strdup (ev);
+      for (char *s = ev; s;)
+	{
+	  char *s1 = strchr (s, ':');
+	  if (s1)
+	    *(s1++) = 0;
+	  fname = dbe_sprintf ("%s/%s", s, LIBGP_COLLECTOR);
+	  if (access (fname, R_OK | F_OK) == 0)
+	    {
+	      if (++cnt != 1)
+		sb.append (':');
+	      sb.append (s);
+	    }
+	  free (fname);
+	  s = s1;
+	}
+      free (ev);
+      ev = NULL;
+    }
+  if (settings->preload_libdirs == NULL)
     {
       settings->read_rc (false);
       ev = settings->preload_libdirs;
     }
   ev = dbe_strdup (ev);
-  StringBuilder sb;
-  sb.appendf ("%s=", "SP_COLLECTOR_LIBRARY_PATH");
-  int len = sb.length ();
-  int cnt = 0;
-  char *fname = dbe_sprintf ("%s/%s/%s", LIBDIR, PACKAGE, LIBGP_COLLECTOR);
+  fname = dbe_sprintf ("%s/%s/%s", LIBDIR, PACKAGE, LIBGP_COLLECTOR);
   if (access (fname, R_OK | F_OK) == 0)
     {
       ++cnt;
diff --git a/gprofng/testsuite/config/default.exp b/gprofng/testsuite/config/default.exp
index c4a6588bb64..3828514c0b0 100644
--- a/gprofng/testsuite/config/default.exp
+++ b/gprofng/testsuite/config/default.exp
@@ -19,6 +19,7 @@
 # MA 02110-1301, USA.
 #
 
+
 # The "make check" target in the Makefile passes in
 # "CC=$(CC_FOR_TARGET)".  But, if the user invokes runtest directly,
 # these flags may not be set.
@@ -36,18 +37,32 @@ remote_exec host "sh -c \"rm -rf tmpdir; mkdir -p tmpdir\""
 if { "$CHECK_TARGET" == "check-install" } {
     set ::env(GPROFNG) "$PREFIX/bin/gprofng"
 } else {
-    # Make a temporary install dir to run gprofng from, and point at it
-    remote_exec host "sh -c \"$MAKE -C .. install-gprofng MAKEFLAGS=program_transform_name= DESTDIR=$BUILDDIR/tmpdir/root\""
-    set ::env(GPROFNG) [exec find $BUILDDIR/tmpdir -type f -name gprofng -perm -u+x | head -1]
-
-    set x [exec find $BUILDDIR/tmpdir -type d -name gprofng | head -1]
-    set ::env(LD_LIBRARY_PATH) "$x:$x/.."
-
-    set x [exec find $BUILDDIR/tmpdir -type f -name gprofng.rc | head -1]
-    set ::env(GPROFNG_SYSCONFDIR) [exec dirname $x]
+    set ld_library_path "${BUILDDIR}/src/.libs:${BUILDDIR}/libcollector/.libs"
+    set orig_ld_library_path ""
+    catch { set orig_ld_library_path $::env(LD_LIBRARY_PATH) }
+    if [file exists "${BUILDDIR}/../bfd/.libs/libbfd.a"] {
+        append ld_library_path ":${BUILDDIR}/../bfd/.libs"
+    }
+    if [file exists "${BUILDDIR}/../opcodes/.libs/libopcodes.a"] {
+        append ld_library_path ":${BUILDDIR}/../opcodes/.libs"
+    }
+    if [file exists "${BUILDDIR}/../libsframe/.libs/libsframe.a"] {
+        append ld_library_path ":${BUILDDIR}/../libsframe/.libs"
+    }
+    if [file exists "${BUILDDIR}/../libiberty/libiberty.a"] {
+        append ld_library_path ":${BUILDDIR}/../libiberty"
+    }
 
-    puts "### LD_LIBRARY_PATH: $env(LD_LIBRARY_PATH)"
-    puts "### GPROFNG_SYSCONFDIR: $env(GPROFNG_SYSCONFDIR)"
+    set f [open "gprofng_wraper" w+]
+    puts $f "#!/usr/bin/bash"
+    puts $f "LD_LIBRARY_PATH=$ld_library_path:$orig_ld_library_path"
+    puts $f "GPROFNG_SYSCONFDIR=$env(srcroot)/src"
+    puts $f "GPROFNG_PRELOAD_LIBDIRS=$BUILDDIR/libcollector/.libs"
+    puts $f "export LD_LIBRARY_PATH GPROFNG_SYSCONFDIR GPROFNG_PRELOAD_LIBDIRS"
+    puts $f "${BUILDDIR}/src/gprofng \"\$@\""
+    close $f
+    file attributes gprofng_wraper -permissions +rx
+    set ::env(GPROFNG) "$BUILDDIR/gprofng_wraper"
 }
 puts "### GPROFNG: $env(GPROFNG)"
 
diff --git a/gprofng/testsuite/lib/display-lib.exp b/gprofng/testsuite/lib/display-lib.exp
index 50db4d5055a..6941d84761c 100644
--- a/gprofng/testsuite/lib/display-lib.exp
+++ b/gprofng/testsuite/lib/display-lib.exp
@@ -26,8 +26,8 @@ proc run_native_host_cmd { command } {
     verbose -log "$command"
     set run_output ""
     try {
-	send_log "% timeout $TEST_TIMEOUT sh -c '$command' 2>&1\n"
-	set run_output [exec "timeout" $TEST_TIMEOUT "sh" "-c" "$command" "2>&1"]
+	send_log "% timeout $TEST_TIMEOUT sh -c '$command' 2>@1\n"
+	set run_output [exec "timeout" $TEST_TIMEOUT "sh" "-c" "$command" "2>@1"]
 	set status 0
     } trap CHILDSTATUS {results options} {
 	set status [lindex [dict get $options -errorcode] 2]
-- 
2.43.0