gprofng: Fix -Wformat= warnings

Added format attribute to several gprofng functions.
Fixed -Wformat= warnings.

gprofng/ChangeLog
2023-10-23  Vladimir Mezentsev  <vladimir.mezentsev@oracle.com>

	* libcollector/heaptrace.c: Fixed -Wformat= warnings.
	* libcollector/hwprofile.c: Likewise.
	* libcollector/iolib.c: Likewise.
	* libcollector/iotrace.c: Likewise.
	* libcollector/jprofile.c: Likewise.
	* libcollector/profile.c: Likewise.
	* libcollector/synctrace.c: Likewise.
	* src/ClassFile.cc: Likewise.
	* src/SourceFile.cc: Likewise.
	* libcollector/libcol_util.h: Added format attribute.
	* src/Emsg.h: Likewise.
	* src/collector_module.h: Likewise.
	* src/data_pckts.h: Define fld_sizeof.

13 files changed, 149 insertions, 82 deletions

diff --git a/gprofng/libcollector/heaptrace.c b/gprofng/libcollector/heaptrace.c
index b51ab33..4c1b6b3 100644
--- a/gprofng/libcollector/heaptrace.c
+++ b/gprofng/libcollector/heaptrace.c
@@ -24,6 +24,7 @@
 
 #include "config.h"
 #include <dlfcn.h>
+#include <stddef.h>
 
 #include "gp-defs.h"
 #include "collector.h"
@@ -151,26 +152,34 @@ open_experiment (const char *exp)
 				 module_interface.description);
 
   /* Record Heap_packet description */
-  Heap_packet *pp = NULL;
   collector_interface->writeLog ("  <profpckt kind=\"%d\" uname=\"Heap tracing data\">\n", HEAP_PCKT);
   collector_interface->writeLog ("    <field name=\"LWPID\" uname=\"Lightweight process id\" offset=\"%d\" type=\"%s\"/>\n",
-				 &pp->comm.lwp_id, sizeof (pp->comm.lwp_id) == 4 ? "INT32" : "INT64");
+		(int) offsetof (Heap_packet, comm.lwp_id),
+		fld_sizeof (Heap_packet, comm.lwp_id) == 4 ? "INT32" : "INT64");
   collector_interface->writeLog ("    <field name=\"THRID\" uname=\"Thread number\" offset=\"%d\" type=\"%s\"/>\n",
-				 &pp->comm.thr_id, sizeof (pp->comm.thr_id) == 4 ? "INT32" : "INT64");
+		(int) offsetof (Heap_packet, comm.thr_id),
+		fld_sizeof (Heap_packet, comm.thr_id) == 4 ? "INT32" : "INT64");
   collector_interface->writeLog ("    <field name=\"CPUID\" uname=\"CPU id\" offset=\"%d\" type=\"%s\"/>\n",
-				 &pp->comm.cpu_id, sizeof (pp->comm.cpu_id) == 4 ? "INT32" : "INT64");
+		(int) offsetof (Heap_packet, comm.cpu_id),
+		fld_sizeof (Heap_packet, comm.cpu_id) == 4 ? "INT32" : "INT64");
   collector_interface->writeLog ("    <field name=\"TSTAMP\" uname=\"High resolution timestamp\" offset=\"%d\" type=\"%s\"/>\n",
-				 &pp->comm.tstamp, sizeof (pp->comm.tstamp) == 4 ? "INT32" : "INT64");
+		(int) offsetof (Heap_packet, comm.tstamp),
+		fld_sizeof (Heap_packet, comm.tstamp) == 4 ? "INT32" : "INT64");
   collector_interface->writeLog ("    <field name=\"FRINFO\" offset=\"%d\" type=\"%s\"/>\n",
-				 &pp->comm.frinfo, sizeof (pp->comm.frinfo) == 4 ? "INT32" : "INT64");
+		(int) offsetof (Heap_packet, comm.frinfo),
+		fld_sizeof (Heap_packet, comm.frinfo) == 4 ? "INT32" : "INT64");
   collector_interface->writeLog ("    <field name=\"HTYPE\" uname=\"Heap trace function type\" offset=\"%d\" type=\"%s\"/>\n",
-				 &pp->mtype, sizeof (pp->mtype) == 4 ? "INT32" : "INT64");
+		(int) offsetof (Heap_packet, mtype),
+		fld_sizeof (Heap_packet, mtype) == 4 ? "INT32" : "INT64");
   collector_interface->writeLog ("    <field name=\"HSIZE\" uname=\"Memory size\" offset=\"%d\" type=\"%s\"/>\n",
-				 &pp->size, sizeof (pp->size) == 4 ? "UINT32" : "UINT64");
+		(int) offsetof (Heap_packet, size),
+		fld_sizeof (Heap_packet, size) == 4 ? "UINT32" : "UINT64");
   collector_interface->writeLog ("    <field name=\"HVADDR\" uname=\"Memory address\" offset=\"%d\" type=\"%s\"/>\n",
-				 &pp->vaddr, sizeof (pp->vaddr) == 4 ? "UINT32" : "UINT64");
+		(int) offsetof (Heap_packet, vaddr),
+		fld_sizeof (Heap_packet, vaddr) == 4 ? "UINT32" : "UINT64");
   collector_interface->writeLog ("    <field name=\"HOVADDR\" uname=\"Previous memory address\" offset=\"%d\" type=\"%s\"/>\n",
-				 &pp->ovaddr, sizeof (pp->ovaddr) == 4 ? "UINT32" : "UINT64");
+		(int) offsetof (Heap_packet, ovaddr),
+		fld_sizeof (Heap_packet, ovaddr) == 4 ? "UINT32" : "UINT64");
   collector_interface->writeLog ("  </profpckt>\n");
   collector_interface->writeLog ("</profile>\n");
   return COL_ERROR_NONE;
diff --git a/gprofng/libcollector/hwprofile.c b/gprofng/libcollector/hwprofile.c
index 3ca89d1..092d665 100644
--- a/gprofng/libcollector/hwprofile.c
+++ b/gprofng/libcollector/hwprofile.c
@@ -25,6 +25,7 @@
 #include <dlfcn.h>
 #include <stdlib.h>
 #include <stdio.h>
+#include <stddef.h>
 #include <unistd.h>
 #include <errno.h>
 #include <sys/syscall.h>
@@ -823,66 +824,90 @@ hwclogwrite0 ()
   collector_interface->writeLog ("<profdata fname=\"%s\"/>\n",
 				 module_interface.description);
   /* Record Hwcntr_packet description */
-  Hwcntr_packet *pp = NULL;
   collector_interface->writeLog ("<profpckt kind=\"%d\" uname=\"" STXT ("Hardware counter profiling data") "\">\n", HW_PCKT);
   collector_interface->writeLog ("    <field name=\"LWPID\" uname=\"" STXT ("Lightweight process id") "\" offset=\"%d\" type=\"%s\"/>\n",
-				 &pp->comm.lwp_id, sizeof (pp->comm.lwp_id) == 4 ? "INT32" : "INT64");
+			(int) offsetof (Hwcntr_packet, comm.lwp_id),
+			fld_sizeof (Hwcntr_packet, comm.lwp_id) == 4 ? "INT32" : "INT64");
   collector_interface->writeLog ("    <field name=\"THRID\" uname=\"" STXT ("Thread number") "\" offset=\"%d\" type=\"%s\"/>\n",
-				 &pp->comm.thr_id, sizeof (pp->comm.thr_id) == 4 ? "INT32" : "INT64");
+			(int) offsetof (Hwcntr_packet, comm.thr_id),
+			fld_sizeof (Hwcntr_packet, comm.thr_id) == 4 ? "INT32" : "INT64");
   collector_interface->writeLog ("    <field name=\"CPUID\" uname=\"" STXT ("CPU id") "\" offset=\"%d\" type=\"%s\"/>\n",
-				 &pp->comm.cpu_id, sizeof (pp->comm.cpu_id) == 4 ? "INT32" : "INT64");
+			(int) offsetof (Hwcntr_packet, comm.cpu_id),
+			fld_sizeof (Hwcntr_packet, comm.cpu_id) == 4 ? "INT32" : "INT64");
   collector_interface->writeLog ("    <field name=\"TSTAMP\" uname=\"" STXT ("High resolution timestamp") "\" offset=\"%d\" type=\"%s\"/>\n",
-				 &pp->comm.tstamp, sizeof (pp->comm.tstamp) == 4 ? "INT32" : "INT64");
+			(int) offsetof (Hwcntr_packet, comm.tstamp),
+			fld_sizeof (Hwcntr_packet, comm.tstamp) == 4 ? "INT32" : "INT64");
   collector_interface->writeLog ("    <field name=\"FRINFO\" offset=\"%d\" type=\"%s\"/>\n",
-				 &pp->comm.frinfo, sizeof (pp->comm.frinfo) == 4 ? "INT32" : "INT64");
+			(int) offsetof (Hwcntr_packet, comm.frinfo),
+			fld_sizeof (Hwcntr_packet, comm.frinfo) == 4 ? "INT32" : "INT64");
   collector_interface->writeLog ("    <field name=\"HWCTAG\" uname=\"" STXT ("Hardware counter index") "\" offset=\"%d\" type=\"%s\"/>\n",
-				 &pp->tag, sizeof (pp->tag) == 4 ? "INT32" : "INT64");
+			(int) offsetof (Hwcntr_packet, tag),
+			fld_sizeof (Hwcntr_packet, tag) == 4 ? "INT32" : "INT64");
   collector_interface->writeLog ("    <field name=\"HWCINT\" uname=\"" STXT ("Hardware counter interval") "\" offset=\"%d\" type=\"%s\"/>\n",
-				 &pp->interval, sizeof (pp->interval) == 4 ? "INT32" : "INT64");
+			(int) offsetof (Hwcntr_packet, interval),
+			fld_sizeof (Hwcntr_packet, interval) == 4 ? "INT32" : "INT64");
   collector_interface->writeLog ("</profpckt>\n");
   if (hwcdef_has_memspace)
     {
       /* Record MHwcntr_packet description */
-      MHwcntr_packet *xpp = NULL;
       collector_interface->writeLog ("<profpckt kind=\"%d\" uname=\"" STXT ("Hardware counter profiling data") "\">\n", MHWC_PCKT);
       collector_interface->writeLog ("    <field name=\"LWPID\" uname=\"" STXT ("Lightweight process id") "\" offset=\"%d\" type=\"%s\"/>\n",
-				     &xpp->comm.lwp_id, sizeof (xpp->comm.lwp_id) == 4 ? "INT32" : "INT64");
+			(int) offsetof (MHwcntr_packet, comm.lwp_id),
+			fld_sizeof (MHwcntr_packet, comm.lwp_id) == 4 ? "INT32" : "INT64");
       collector_interface->writeLog ("    <field name=\"THRID\" uname=\"" STXT ("Thread number") "\" offset=\"%d\" type=\"%s\"/>\n",
-				     &xpp->comm.thr_id, sizeof (xpp->comm.thr_id) == 4 ? "INT32" : "INT64");
+			(int) offsetof (MHwcntr_packet, comm.thr_id),
+			fld_sizeof (MHwcntr_packet, comm.thr_id) == 4 ? "INT32" : "INT64");
       collector_interface->writeLog ("    <field name=\"CPUID\" uname=\"" STXT ("CPU id") "\" offset=\"%d\" type=\"%s\"/>\n",
-				     &xpp->comm.cpu_id, sizeof (xpp->comm.cpu_id) == 4 ? "INT32" : "INT64");
+			(int) offsetof (MHwcntr_packet, comm.cpu_id),
+			fld_sizeof (MHwcntr_packet, comm.cpu_id) == 4 ? "INT32" : "INT64");
       collector_interface->writeLog ("    <field name=\"TSTAMP\" uname=\"" STXT ("High resolution timestamp") "\" offset=\"%d\" type=\"%s\"/>\n",
-				     &xpp->comm.tstamp, sizeof (xpp->comm.tstamp) == 4 ? "INT32" : "INT64");
+			(int) offsetof (MHwcntr_packet, comm.tstamp),
+			fld_sizeof (MHwcntr_packet, comm.tstamp) == 4 ? "INT32" : "INT64");
       collector_interface->writeLog ("    <field name=\"FRINFO\" offset=\"%d\" type=\"%s\"/>\n",
-				     &xpp->comm.frinfo, sizeof (xpp->comm.frinfo) == 4 ? "INT32" : "INT64");
+			(int) offsetof (MHwcntr_packet, comm.frinfo),
+			fld_sizeof (MHwcntr_packet, comm.frinfo) == 4 ? "INT32" : "INT64");
       collector_interface->writeLog ("    <field name=\"HWCTAG\" uname=\"" STXT ("Hardware counter index") "\" offset=\"%d\" type=\"%s\"/>\n",
-				     &xpp->tag, sizeof (xpp->tag) == 4 ? "INT32" : "INT64");
+			(int) offsetof (MHwcntr_packet, tag),
+			fld_sizeof (MHwcntr_packet, tag) == 4 ? "INT32" : "INT64");
       collector_interface->writeLog ("    <field name=\"HWCINT\" uname=\"" STXT ("Hardware counter interval") "\" offset=\"%d\" type=\"%s\"/>\n",
-				     &xpp->interval, sizeof (xpp->interval) == 4 ? "INT32" : "INT64");
+			(int) offsetof (MHwcntr_packet, interval),
+			fld_sizeof (MHwcntr_packet, interval) == 4 ? "INT32" : "INT64");
       collector_interface->writeLog ("    <field name=\"VADDR\" uname=\"" STXT ("Virtual address (data)") "\" offset=\"%d\" type=\"%s\"/>\n",
-				     &xpp->ea_vaddr, sizeof (xpp->ea_vaddr) == 4 ? "UINT32" : "UINT64");
+			(int) offsetof (MHwcntr_packet, ea_vaddr),
+			fld_sizeof (MHwcntr_packet, ea_vaddr) == 4 ? "UINT32" : "UINT64");
       collector_interface->writeLog ("    <field name=\"PADDR\" uname=\"" STXT ("Physical address (data)") "\" offset=\"%d\" type=\"%s\"/>\n",
-				     &xpp->ea_paddr, sizeof (xpp->ea_paddr) == 4 ? "UINT32" : "UINT64");
+			(int) offsetof (MHwcntr_packet, ea_paddr),
+			fld_sizeof (MHwcntr_packet, ea_paddr) == 4 ? "UINT32" : "UINT64");
       collector_interface->writeLog ("    <field name=\"VIRTPC\" uname=\"" STXT ("Virtual address (instruction)") "\" offset=\"%d\" type=\"%s\"/>\n",
-				     &xpp->pc_vaddr, sizeof (xpp->pc_vaddr) == 4 ? "UINT32" : "UINT64");
+			(int) offsetof (MHwcntr_packet, pc_vaddr),
+			fld_sizeof (MHwcntr_packet, pc_vaddr) == 4 ? "UINT32" : "UINT64");
       collector_interface->writeLog ("    <field name=\"PHYSPC\" uname=\"" STXT ("Physical address (instruction)") "\" offset=\"%d\" type=\"%s\"/>\n",
-				     &xpp->pc_paddr, sizeof (xpp->pc_paddr) == 4 ? "UINT32" : "UINT64");
+			(int) offsetof (MHwcntr_packet, pc_paddr),
+			fld_sizeof (MHwcntr_packet, pc_paddr) == 4 ? "UINT32" : "UINT64");
       collector_interface->writeLog ("    <field name=\"EA_PAGESIZE\" uname=\"" STXT ("Page size (data)") "\" offset=\"%d\" type=\"%s\"/>\n",
-				     &xpp->ea_pagesz, sizeof (xpp->ea_pagesz) == 4 ? "INT32" : "INT64");
+			(int) offsetof (MHwcntr_packet, ea_pagesz),
+			fld_sizeof (MHwcntr_packet, ea_pagesz) == 4 ? "INT32" : "INT64");
       collector_interface->writeLog ("    <field name=\"PC_PAGESIZE\" uname=\"" STXT ("Page size (instruction)") "\" offset=\"%d\" type=\"%s\"/>\n",
-				     &xpp->pc_pagesz, sizeof (xpp->pc_pagesz) == 4 ? "INT32" : "INT64");
+			(int) offsetof (MHwcntr_packet, pc_pagesz),
+			fld_sizeof (MHwcntr_packet, pc_pagesz) == 4 ? "INT32" : "INT64");
       collector_interface->writeLog ("    <field name=\"EA_LGRP\" uname=\"" STXT ("Page locality group (data)") "\" offset=\"%d\" type=\"%s\"/>\n",
-				     &xpp->ea_lgrp, sizeof (xpp->ea_lgrp) == 4 ? "INT32" : "INT64");
+			(int) offsetof (MHwcntr_packet, ea_lgrp),
+			fld_sizeof (MHwcntr_packet, ea_lgrp) == 4 ? "INT32" : "INT64");
       collector_interface->writeLog ("    <field name=\"PC_LGRP\" uname=\"" STXT ("Page locality group (instruction)") "\" offset=\"%d\" type=\"%s\"/>\n",
-				     &xpp->pc_lgrp, sizeof (xpp->pc_lgrp) == 4 ? "INT32" : "INT64");
+			(int) offsetof (MHwcntr_packet, pc_lgrp),
+			fld_sizeof (MHwcntr_packet, pc_lgrp) == 4 ? "INT32" : "INT64");
       collector_interface->writeLog ("    <field name=\"LWP_LGRP_HOME\" uname=\"" STXT ("LWP home lgroup id") "\" offset=\"%d\" type=\"%s\"/>\n",
-				     &xpp->lgrp_lwp, sizeof (xpp->lgrp_lwp) == 4 ? "INT32" : "INT64");
+			(int) offsetof (MHwcntr_packet, lgrp_lwp),
+			fld_sizeof (MHwcntr_packet, lgrp_lwp) == 4 ? "INT32" : "INT64");
       collector_interface->writeLog ("    <field name=\"PS_LGRP_HOME\" uname=\"" STXT ("Process home lgroup id") "\" offset=\"%d\" type=\"%s\"/>\n",
-				     &xpp->lgrp_ps, sizeof (xpp->lgrp_ps) == 4 ? "INT32" : "INT64");
+			(int) offsetof (MHwcntr_packet, lgrp_ps),
+			fld_sizeof (MHwcntr_packet, lgrp_ps) == 4 ? "INT32" : "INT64");
       collector_interface->writeLog ("    <field name=\"MEM_LAT\" uname=\"" STXT ("Memory Latency Cycles") "\" offset=\"%d\" type=\"%s\"/>\n",
-				     &xpp->latency, sizeof (xpp->latency) == 4 ? "INT32" : "INT64");
+			(int) offsetof (MHwcntr_packet, latency),
+			fld_sizeof (MHwcntr_packet, latency) == 4 ? "INT32" : "INT64");
       collector_interface->writeLog ("    <field name=\"MEM_SRC\" uname=\"" STXT ("Memory Data Source") "\" offset=\"%d\" type=\"%s\"/>\n",
-				     &xpp->data_source, sizeof (xpp->data_source) == 4 ? "INT32" : "INT64");
+			(int) offsetof (MHwcntr_packet, data_source),
+			fld_sizeof (MHwcntr_packet, data_source) == 4 ? "INT32" : "INT64");
       collector_interface->writeLog ("</profpckt>\n");
     }
 }
diff --git a/gprofng/libcollector/iolib.c b/gprofng/libcollector/iolib.c
index 9de4814..96fdd25 100644
--- a/gprofng/libcollector/iolib.c
+++ b/gprofng/libcollector/iolib.c
@@ -640,7 +640,7 @@ remapBlock (DataHandle *hndl, unsigned iflow, unsigned ichunk)
       hrtime_t teo = __collector_gethrtime ();
       double deltato = (double) (teo - tso) / 1000000.;
       (void) CALL_UTIL (snprintf) (errmsg, sizeof (errmsg),
-	      " t=%d, %s: open-retries=%lu, %3.6f ms.; remap\n",
+	      " t=%ld, %s: open-retries=%d, %3.6f ms.; remap\n",
 	      (unsigned long) __collector_thr_self (), hndl->fname,
 	      iter, deltato);
       __collector_log_write ("<event kind=\"%s\" id=\"%d\">%s</event>\n",
diff --git a/gprofng/libcollector/iotrace.c b/gprofng/libcollector/iotrace.c
index 81c8440..7ed9c99 100644
--- a/gprofng/libcollector/iotrace.c
+++ b/gprofng/libcollector/iotrace.c
@@ -25,6 +25,7 @@
 #include <dlfcn.h>
 #include <errno.h>
 #include <stdarg.h>
+#include <stddef.h>
 #include <stdlib.h>
 
 // create() and others are defined in fcntl.h.
@@ -305,32 +306,42 @@ open_experiment (const char *exp)
   collector_interface->writeLog ("  <profdata fname=\"%s\"/>\n",
 				 module_interface.description);
   /* Record IOTrace_packet description */
-  IOTrace_packet *pp = NULL;
   collector_interface->writeLog ("  <profpckt kind=\"%d\" uname=\"IO tracing data\">\n", IOTRACE_PCKT);
   collector_interface->writeLog ("    <field name=\"LWPID\" uname=\"Lightweight process id\" offset=\"%d\" type=\"%s\"/>\n",
-				 &pp->comm.lwp_id, sizeof (pp->comm.lwp_id) == 4 ? "INT32" : "INT64");
+		(int) offsetof (IOTrace_packet, comm.lwp_id),
+		fld_sizeof (IOTrace_packet, comm.lwp_id) == 4 ? "INT32" : "INT64");
   collector_interface->writeLog ("    <field name=\"THRID\" uname=\"Thread number\" offset=\"%d\" type=\"%s\"/>\n",
-				 &pp->comm.thr_id, sizeof (pp->comm.thr_id) == 4 ? "INT32" : "INT64");
+		(int) offsetof (IOTrace_packet, comm.thr_id),
+		fld_sizeof (IOTrace_packet, comm.thr_id) == 4 ? "INT32" : "INT64");
   collector_interface->writeLog ("    <field name=\"CPUID\" uname=\"CPU id\" offset=\"%d\" type=\"%s\"/>\n",
-				 &pp->comm.cpu_id, sizeof (pp->comm.cpu_id) == 4 ? "INT32" : "INT64");
+		(int) offsetof (IOTrace_packet, comm.cpu_id),
+		fld_sizeof (IOTrace_packet, comm.cpu_id) == 4 ? "INT32" : "INT64");
   collector_interface->writeLog ("    <field name=\"TSTAMP\" uname=\"High resolution timestamp\" offset=\"%d\" type=\"%s\"/>\n",
-				 &pp->comm.tstamp, sizeof (pp->comm.tstamp) == 4 ? "INT32" : "INT64");
+		(int) offsetof (IOTrace_packet, comm.tstamp),
+		fld_sizeof (IOTrace_packet, comm.tstamp) == 4 ? "INT32" : "INT64");
   collector_interface->writeLog ("    <field name=\"FRINFO\" offset=\"%d\" type=\"%s\"/>\n",
-				 &pp->comm.frinfo, sizeof (pp->comm.frinfo) == 4 ? "INT32" : "INT64");
+		(int) offsetof (IOTrace_packet, comm.frinfo),
+		fld_sizeof (IOTrace_packet, comm.frinfo) == 4 ? "INT32" : "INT64");
   collector_interface->writeLog ("    <field name=\"IOTYPE\" uname=\"IO trace function type\" offset=\"%d\" type=\"%s\"/>\n",
-				 &pp->iotype, sizeof (pp->iotype) == 4 ? "INT32" : "INT64");
+		(int) offsetof (IOTrace_packet, iotype),
+		fld_sizeof (IOTrace_packet, iotype) == 4 ? "INT32" : "INT64");
   collector_interface->writeLog ("    <field name=\"IOFD\" uname=\"File descriptor\" offset=\"%d\" type=\"%s\"/>\n",
-				 &pp->fd, sizeof (pp->fd) == 4 ? "INT32" : "INT64");
+		(int) offsetof (IOTrace_packet, fd),
+		fld_sizeof (IOTrace_packet, fd) == 4 ? "INT32" : "INT64");
   collector_interface->writeLog ("    <field name=\"IONBYTE\" uname=\"Number of bytes\" offset=\"%d\" type=\"%s\"/>\n",
-				 &pp->nbyte, sizeof (pp->nbyte) == 4 ? "INT32" : "INT64");
+		(int) offsetof (IOTrace_packet, nbyte),
+		fld_sizeof (IOTrace_packet, nbyte) == 4 ? "INT32" : "INT64");
   collector_interface->writeLog ("    <field name=\"IORQST\" uname=\"Time of IO requested\" offset=\"%d\" type=\"%s\"/>\n",
-				 &pp->requested, sizeof (pp->requested) == 4 ? "INT32" : "INT64");
+		(int) offsetof (IOTrace_packet, requested),
+		fld_sizeof (IOTrace_packet, requested) == 4 ? "INT32" : "INT64");
   collector_interface->writeLog ("    <field name=\"IOOFD\" uname=\"Original file descriptor\" offset=\"%d\" type=\"%s\"/>\n",
-				 &pp->ofd, sizeof (pp->ofd) == 4 ? "INT32" : "INT64");
+		(int) offsetof (IOTrace_packet, ofd),
+		fld_sizeof (IOTrace_packet, ofd) == 4 ? "INT32" : "INT64");
   collector_interface->writeLog ("    <field name=\"IOFSTYPE\" uname=\"File system type\" offset=\"%d\" type=\"%s\"/>\n",
-				 &pp->fstype, sizeof (pp->fstype) == 4 ? "INT32" : "INT64");
+		(int) offsetof (IOTrace_packet, fstype),
+		fld_sizeof (IOTrace_packet, fstype) == 4 ? "INT32" : "INT64");
   collector_interface->writeLog ("    <field name=\"IOFNAME\" uname=\"File name\" offset=\"%d\" type=\"%s\"/>\n",
-				 &pp->fname, "STRING");
+		(int) offsetof (IOTrace_packet, fname), "STRING");
   collector_interface->writeLog ("  </profpckt>\n");
   collector_interface->writeLog ("</profile>\n");
   return COL_ERROR_NONE;
diff --git a/gprofng/libcollector/jprofile.c b/gprofng/libcollector/jprofile.c
index 4bec999..130da19 100644
--- a/gprofng/libcollector/jprofile.c
+++ b/gprofng/libcollector/jprofile.c
@@ -28,7 +28,7 @@
 #include <unistd.h>
 #include <errno.h>
 #include <sys/param.h> /* MAXPATHLEN */
-
+#include <stddef.h>
 #include <jni.h>
 #include <jvmti.h>
 
@@ -628,8 +628,8 @@ jvmti_ThreadStart (jvmtiEnv *jvmti_env, JNIEnv* jni_env, jthread thread)
 				 group_name,
 				 parent_name,
 				 (unsigned long) tid,
-				 thread,
-				 jni_env
+				 (unsigned long) thread,
+				 (unsigned long) jni_env
 				 );
   TSD_Entry *tsd = collector_interface->getKey (tsd_key);
   if (tsd)
@@ -648,8 +648,8 @@ jvmti_ThreadEnd (jvmtiEnv *jvmti_env, JNIEnv* jni_env, jthread thread)
 				 SP_JCMD_JTHREND,
 				 (unsigned) (hrt / NANOSEC), (unsigned) (hrt % NANOSEC),
 				 (unsigned long) tid,
-				 thread,
-				 jni_env
+				 (unsigned long) thread,
+				 (unsigned long) jni_env
 				 );
   TSD_Entry *tsd = collector_interface->getKey (tsd_key);
   if (tsd)
diff --git a/gprofng/libcollector/libcol_util.h b/gprofng/libcollector/libcol_util.h
index bb94114..c21b4a4 100644
--- a/gprofng/libcollector/libcol_util.h
+++ b/gprofng/libcollector/libcol_util.h
@@ -38,7 +38,8 @@ extern  void __collector_libscf_funcs_init();
 
 /* -------  functions from libcol_util.c ----------------- */
 extern void * __collector_memcpy (void *s1, const void *s2, size_t n);
-extern int (*__collector_sscanfp)(const char *restrict s, const char *restrict fmt, ...);
+extern int (*__collector_sscanfp)(const char *restrict s, const char *restrict fmt, ...)
+	__attribute__ ((format (scanf, 2, 3)));
 extern char * __collector_strcat (char *s1, const char *s2);
 extern char * __collector_strchr (const char *s1, int chr);
 extern size_t __collector_strlcpy (char *dst, const char *src, size_t dstsize);
diff --git a/gprofng/libcollector/profile.c b/gprofng/libcollector/profile.c
index 4819d83..02c3e66 100644
--- a/gprofng/libcollector/profile.c
+++ b/gprofng/libcollector/profile.c
@@ -27,6 +27,7 @@
 
 #include "config.h"
 #include <dlfcn.h>
+#include <stddef.h>
 #include <stdlib.h>
 #include <string.h>
 #include <ucontext.h>
@@ -181,22 +182,28 @@ open_experiment (const char *exp)
 				 module_interface.description);
 
   /* Record Profile packet description */
-  ClockPacket *cp = NULL;
   collector_interface->writeLog ("  <profpckt kind=\"%d\" uname=\"" STXT ("Clock profiling data") "\">\n", CLOCK_TYPE);
   collector_interface->writeLog ("    <field name=\"LWPID\" uname=\"" STXT ("Lightweight process id") "\" offset=\"%d\" type=\"%s\"/>\n",
-				 &cp->lwp_id, sizeof (cp->lwp_id) == 4 ? "INT32" : "INT64");
+		(int) offsetof (ClockPacket, lwp_id),
+		fld_sizeof (ClockPacket, lwp_id) == 4 ? "INT32" : "INT64");
   collector_interface->writeLog ("    <field name=\"THRID\" uname=\"" STXT ("Thread number") "\" offset=\"%d\" type=\"%s\"/>\n",
-				 &cp->thr_id, sizeof (cp->thr_id) == 4 ? "INT32" : "INT64");
+		(int) offsetof (ClockPacket, thr_id),
+		fld_sizeof (ClockPacket, thr_id) == 4 ? "INT32" : "INT64");
   collector_interface->writeLog ("    <field name=\"CPUID\" uname=\"" STXT ("CPU id") "\" offset=\"%d\" type=\"%s\"/>\n",
-				 &cp->cpu_id, sizeof (cp->cpu_id) == 4 ? "INT32" : "INT64");
+		(int) offsetof (ClockPacket, cpu_id),
+		fld_sizeof (ClockPacket, cpu_id) == 4 ? "INT32" : "INT64");
   collector_interface->writeLog ("    <field name=\"TSTAMP\" uname=\"" STXT ("High resolution timestamp") "\" offset=\"%d\" type=\"%s\"/>\n",
-				 &cp->tstamp, sizeof (cp->tstamp) == 4 ? "INT32" : "INT64");
+		(int) offsetof (ClockPacket, tstamp),
+		fld_sizeof (ClockPacket, tstamp) == 4 ? "INT32" : "INT64");
   collector_interface->writeLog ("    <field name=\"FRINFO\" offset=\"%d\" type=\"%s\"/>\n",
-				 &cp->frinfo, sizeof (cp->frinfo) == 4 ? "INT32" : "INT64");
+		(int) offsetof (ClockPacket, frinfo),
+		fld_sizeof (ClockPacket, frinfo) == 4 ? "INT32" : "INT64");
   collector_interface->writeLog ("    <field name=\"MSTATE\" uname=\"" STXT ("Thread state") "\" offset=\"%d\" type=\"%s\"/>\n",
-				 &cp->mstate, sizeof (cp->mstate) == 4 ? "INT32" : "INT64");
+		(int) offsetof (ClockPacket, mstate),
+		fld_sizeof (ClockPacket, mstate) == 4 ? "INT32" : "INT64");
   collector_interface->writeLog ("    <field name=\"NTICK\" uname=\"" STXT ("Duration") "\" offset=\"%d\" type=\"%s\"/>\n",
-				 &cp->nticks, sizeof (cp->nticks) == 4 ? "INT32" : "INT64");
+		(int) offsetof (ClockPacket, nticks),
+		fld_sizeof (ClockPacket, nticks) == 4 ? "INT32" : "INT64");
   collector_interface->writeLog ("  </profpckt>\n");
   collector_interface->writeLog ("</profile>\n");
   return COL_ERROR_NONE;
diff --git a/gprofng/libcollector/synctrace.c b/gprofng/libcollector/synctrace.c
index 565afbe..4c4d80d 100644
--- a/gprofng/libcollector/synctrace.c
+++ b/gprofng/libcollector/synctrace.c
@@ -26,6 +26,7 @@
 #include <dlfcn.h>
 #include <unistd.h>
 #include <semaphore.h>		/* sem_wait() */
+#include <stddef.h>
 #include <stdlib.h>
 #include <string.h>
 #include <sys/param.h>
@@ -252,22 +253,28 @@ open_experiment (const char *exp)
   collector_interface->writeLog ("  <profdata fname=\"%s\"/>\n",
 				 module_interface.description);
   /* Record Sync_packet description */
-  Sync_packet *pp = NULL;
   collector_interface->writeLog ("  <profpckt kind=\"%d\" uname=\"Synchronization tracing data\">\n", SYNC_PCKT);
   collector_interface->writeLog ("    <field name=\"LWPID\" uname=\"Lightweight process id\" offset=\"%d\" type=\"%s\"/>\n",
-				 &pp->comm.lwp_id, sizeof (pp->comm.lwp_id) == 4 ? "INT32" : "INT64");
+		(int) offsetof (Sync_packet, comm.lwp_id),
+		fld_sizeof (Sync_packet, comm.lwp_id) == 4 ? "INT32" : "INT64");
   collector_interface->writeLog ("    <field name=\"THRID\" uname=\"Thread number\" offset=\"%d\" type=\"%s\"/>\n",
-				 &pp->comm.thr_id, sizeof (pp->comm.thr_id) == 4 ? "INT32" : "INT64");
+		(int) offsetof (Sync_packet, comm.thr_id),
+		fld_sizeof (Sync_packet, comm.thr_id) == 4 ? "INT32" : "INT64");
   collector_interface->writeLog ("    <field name=\"CPUID\" uname=\"CPU id\" offset=\"%d\" type=\"%s\"/>\n",
-				 &pp->comm.cpu_id, sizeof (pp->comm.cpu_id) == 4 ? "INT32" : "INT64");
+		(int) offsetof (Sync_packet, comm.cpu_id),
+		fld_sizeof (Sync_packet, comm.cpu_id) == 4 ? "INT32" : "INT64");
   collector_interface->writeLog ("    <field name=\"TSTAMP\" uname=\"High resolution timestamp\" offset=\"%d\" type=\"%s\"/>\n",
-				 &pp->comm.tstamp, sizeof (pp->comm.tstamp) == 4 ? "INT32" : "INT64");
+		(int) offsetof (Sync_packet, comm.tstamp),
+		fld_sizeof (Sync_packet, comm.tstamp) == 4 ? "INT32" : "INT64");
   collector_interface->writeLog ("    <field name=\"FRINFO\" offset=\"%d\" type=\"%s\"/>\n",
-				 &pp->comm.frinfo, sizeof (pp->comm.frinfo) == 4 ? "INT32" : "INT64");
+		(int) offsetof (Sync_packet, comm.frinfo),
+		fld_sizeof (Sync_packet, comm.frinfo) == 4 ? "INT32" : "INT64");
   collector_interface->writeLog ("    <field name=\"SRQST\" uname=\"Synchronization start time\" offset=\"%d\" type=\"%s\"/>\n",
-				 &pp->requested, sizeof (pp->requested) == 4 ? "INT32" : "INT64");
+		(int) offsetof (Sync_packet, requested),
+		fld_sizeof (Sync_packet, requested) == 4 ? "INT32" : "INT64");
   collector_interface->writeLog ("    <field name=\"SOBJ\" uname=\"Synchronization object address\" offset=\"%d\" type=\"%s\"/>\n",
-				 &pp->objp, sizeof (pp->objp) == 4 ? "INT32" : "INT64");
+		(int) offsetof (Sync_packet, objp),
+		fld_sizeof (Sync_packet, objp) == 4 ? "INT32" : "INT64");
   collector_interface->writeLog ("  </profpckt>\n");
   collector_interface->writeLog ("</profile>\n");
 
diff --git a/gprofng/src/ClassFile.cc b/gprofng/src/ClassFile.cc
index 0f1d468..d59c963 100644
--- a/gprofng/src/ClassFile.cc
+++ b/gprofng/src/ClassFile.cc
@@ -1594,7 +1594,7 @@ ClassFile::get_disasm (uint64_t inst_address, uint64_t end_address,
     {
       append_msg (CMSG_ERROR, GTXT ("Cannot disassemble class file %s (%s), implausible size = %lld"),
 		  get_name (), dbeFile->get_location (),
-		  (end_address - start_address));
+		  (long long) (end_address - start_address));
       inst_size = 0;
       return NULL;
     }
diff --git a/gprofng/src/Emsg.h b/gprofng/src/Emsg.h
index bed664b..9dbacea 100644
--- a/gprofng/src/Emsg.h
+++ b/gprofng/src/Emsg.h
@@ -105,7 +105,8 @@ public:
   Vector<Emsg*> *msgs;
   void remove_msg (Emsg *msg);
   Emsg *get_error ();
-  Emsg *append_msg (Cmsg_warn w, const char *fmt, ...);
+  Emsg *append_msg (Cmsg_warn w, const char *fmt, ...)
+	__attribute__ ((format (printf, 3, 4)));
   void append_msgs (Vector<Emsg*> *lst);
 };
 
diff --git a/gprofng/src/SourceFile.cc b/gprofng/src/SourceFile.cc
index 35629cc..f3809c8 100644
--- a/gprofng/src/SourceFile.cc
+++ b/gprofng/src/SourceFile.cc
@@ -135,7 +135,8 @@ SourceFile::readSource ()
 	  DbeLine *p = v->get (i);
 	  if (p->lineno >= srcLines->size ())
 	    append_msg (CMSG_ERROR, GTXT ("Wrong line number %d. '%s' has only %d lines"),
-			p->lineno, dbeFile->get_location (), srcLines->size ());
+			(int) p->lineno, dbeFile->get_location (),
+			(int) srcLines->size ());
 	}
       delete v;
     }
@@ -167,7 +168,8 @@ SourceFile::find_dbeline (Function *func, int lineno)
 	  if (dbeLine == NULL)
 	    append_msg (CMSG_ERROR,
 			GTXT ("Wrong line number %d. '%s' has only %d lines"),
-			lineno, dbeFile->get_location (), lines->size ());
+			(int) lineno, dbeFile->get_location (),
+			(int) lines->size ());
 	}
       else
 	{
diff --git a/gprofng/src/collector_module.h b/gprofng/src/collector_module.h
index 07bf362..67dcad6 100644
--- a/gprofng/src/collector_module.h
+++ b/gprofng/src/collector_module.h
@@ -53,7 +53,8 @@ typedef struct CollectorUtilFuncs
   char *(*fgets)(char *s, int n, FILE *stream);
   FILE *(*fopen)(const char *filename, const char *mode);
   pid_t (*vfork)();
-  int (*fprintf)(FILE *stream, const char *format, ...);
+  int (*fprintf)(FILE *stream, const char *format, ...)
+	__attribute__ ((format (printf, 2, 3)));
   void (*free)(void *ptr);
   int (*fstat)(int fd, struct stat *buf);
   int (*getcontext)(ucontext_t *ucp);
@@ -82,7 +83,8 @@ typedef struct CollectorUtilFuncs
   int (*setenv)(const char *name, const char *value, int overwrite);
   int (*sigfillset)(sigset_t *set);
   int (*sigprocmask)(int how, const sigset_t *set, sigset_t *oldset);
-  int (*snprintf)(char *str, size_t size, const char *format, ...);
+  int (*snprintf)(char *str, size_t size, const char *format, ...)
+	__attribute__ ((format (printf, 3, 4)));
   int (*stack_getbounds)();
   char *(*strchr)(const char *name, int c);
   int (*strcmp)(const char *s1, const char *s2);
@@ -168,12 +170,13 @@ typedef struct CollectorInterface
   CollectorModule (*registerModule)(struct ModuleInterface*);
   const char *(*getParams)();
   const char *(*getExpDir)();
-  int (*writeLog)(char *format, ...);
+  int (*writeLog)(char *format, ...) __attribute__ ((format (printf, 1, 2)));
   FrameInfo (*getFrameInfo)(CollectorModule modl, HiResTime ts, int mode, void *arg);
   FrameInfo (*getUID)(CM_Array *arg);
   FrameInfo (*getUID2)(CM_Array *arg, FrameInfo uid);
   int (*getStackTrace)(void *buf, int size, void *bptr, void *eptr, void *arg);
-  int (*writeMetaData)(CollectorModule modl, char *format, ...);
+  int (*writeMetaData)(CollectorModule modl, char *format, ...)
+	__attribute__ ((format (printf, 2, 3)));
 
   /* writeDataRecord ensures that the header is filled in, and then calls writeDataPacket */
   int (*writeDataRecord)(CollectorModule modl, struct Common_packet *pckt);
diff --git a/gprofng/src/data_pckts.h b/gprofng/src/data_pckts.h
index 484edae..eecd4e9 100644
--- a/gprofng/src/data_pckts.h
+++ b/gprofng/src/data_pckts.h
@@ -51,6 +51,7 @@ typedef uint32_t Size_type;     /* size_t for 32 bit apps */
 #define SP_FAILED_UNWIND_MARKER ((uint64_t)(-3))
 
 #define PROFILE_BUFFER_CHUNK    16384
+#define fld_sizeof(t, f) (sizeof (((t *)0)->f))
 
 typedef enum
 {