Update to rtla in linux-6.6.0

Add patch to use SYS_gettid and add -lpthread to the Makefile
Resolves: RHEL-10081

Signed-off-by: John Kacur <jkacur@redhat.com>

rtla-Use-SYS_gettid-for-gettid.patch

@@ -0,0 +1,50 @@
+From 07ad224f2416e7c9411fd095fef148c67011eb49 Mon Sep 17 00:00:00 2001
+From: root <root@hpe-dl160gen8-01.hpe2.lab.eng.bos.redhat.com>
+Date: Wed, 20 Dec 2023 13:08:28 -0500
+Subject: [PATCH] rtla: Use SYS_gettid for gettid
+
+Use SYS_gettid for gettid since gittid is not available in the version
+of glibc in rhel8.x
+
+Also add the -lpthread to the flags in the Makefile for
+pthread_setname_np
+
+Signed-off-by: root <root@hpe-dl160gen8-01.hpe2.lab.eng.bos.redhat.com>
+---
+ Makefile         | 2 +-
+ src/timerlat_u.c | 6 ++++++
+ 2 files changed, 7 insertions(+), 1 deletion(-)
+
+diff --git a/Makefile b/Makefile
+index 2456a399eb9a..db85545e9ec1 100644
+--- a/Makefile
++++ b/Makefile
+@@ -32,7 +32,7 @@ TRACEFS_HEADERS	:= $$($(PKG_CONFIG) --cflags libtracefs)
+ 
+ CFLAGS	:=	-O -g -DVERSION=\"$(VERSION)\" $(FOPTS) $(MOPTS) $(WOPTS) $(TRACEFS_HEADERS) $(EXTRA_CFLAGS)
+ LDFLAGS	:=	-ggdb $(EXTRA_LDFLAGS)
+-LIBS	:=	$$($(PKG_CONFIG) --libs libtracefs)
++LIBS	:=	$$($(PKG_CONFIG) --libs libtracefs) -lpthread
+ 
+ SRC	:=	$(wildcard src/*.c)
+ HDR	:=	$(wildcard src/*.h)
+diff --git a/src/timerlat_u.c b/src/timerlat_u.c
+index 01dbf9a6b5a5..e8d0ec92c8d2 100644
+--- a/src/timerlat_u.c
++++ b/src/timerlat_u.c
+@@ -16,6 +16,12 @@
+ #include <sys/wait.h>
+ #include <sys/prctl.h>
+ 
++#include <sys/syscall.h>
++#ifndef SYS_gettid
++#error "SYS_gettid unavailable"
++#endif
++#define gettid() ((pid_t)syscall(SYS_gettid))
++
+ #include "utils.h"
+ #include "timerlat_u.h"
+ 
+-- 
+2.43.0
+

rtla.spec

@@ -19,6 +19,7 @@ Requires: libtracefs >= 1.3.1
 
 # Patches
 Patch01: rtla-Fix-uninitialized-variable-found.patch
+Patch02: rtla-Use-SYS_gettid-for-gettid.patch
 
 %description
 The rtla meta-tool includes a set of commands that aims to analyze
@@ -30,6 +31,7 @@ about the properties and root causes of unexpected results.
 %prep
 %setup -q -n %{name}-%{version}
 %patch1 -p1
+%patch2 -p1
 
 
 %build
@@ -68,6 +70,7 @@ make DESTDIR=%{buildroot} -C Documentation install
 %changelog
 * Mon Dec 18 2023 John Kacur <jkacur@redhat.com> - 6.6.0-1
 Update to rtla in linux-6.6.0
+- Add patch to use SYS_gettid and add -lpthread to the Makefile
 Resolves: RHEL-10081
 
 * Fri Jul 14 2023 John Kacur <jkacur@redhat.com> - 5.14.0-8