porting: Port for FreeBSD rebased from Mike Ma's efforts

- Provides a working Gluster Management Daemon, CLI
- Provides a working GlusterFS server, GlusterNFS server
- Provides a working GlusterFS client
- execinfo port from FreeBSD is moved into ./contrib/libexecinfo
  for ease of portability on NetBSD. (FreeBSD 10 and OSX provide
  execinfo natively)
- More portability cleanups for Darwin, FreeBSD and NetBSD
- Provides a new rc script for FreeBSD

Change-Id: I8dff336f97479ca5a7f9b8c6b730051c0f8ac46f
BUG: 1111774
Original-Author: Mike Ma <mikemandarine@gmail.com>
Signed-off-by: Harshavardhana <harsha@harshavardhana.net>
Reviewed-on: http://review.gluster.org/8141
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com>

2 files changed, 26 insertions, 24 deletions

diff --git a/xlators/features/protect/src/Makefile.am b/xlators/features/protect/src/Makefile.am
index 968e88c457a..fdfed4b219e 100644
--- a/xlators/features/protect/src/Makefile.am
+++ b/xlators/features/protect/src/Makefile.am
@@ -14,8 +14,8 @@ prot_server_la_LDFLAGS = -module -avoid-version
 prot_server_la_SOURCES = prot_server.c
 prot_server_la_LIBADD  = $(top_builddir)/libglusterfs/src/libglusterfs.la
 
-AM_CPPFLAGS = $(GF_CPPFLAGS) -I$(top_srcdir)/libglusterfs/src
+AM_CPPFLAGS = $(GF_CPPFLAGS) -I$(top_srcdir)/libglusterfs/src \
+	 -I$(CONTRIBDIR)/libexecinfo
 AM_CFLAGS = -Wall $(GF_CFLAGS)
 
-CLEANFILES = 
-
+CLEANFILES =
diff --git a/xlators/features/protect/src/prot_client.c b/xlators/features/protect/src/prot_client.c
index d09715067bd..500c772bedd 100644
--- a/xlators/features/protect/src/prot_client.c
+++ b/xlators/features/protect/src/prot_client.c
@@ -15,8 +15,10 @@
 #include "xlator.h"
 #include "defaults.h"
 
-#ifndef __NetBSD__
+#ifdef HAVE_BACKTRACE
 #include <execinfo.h>
+#else
+#include "execinfo_compat.h"
 #endif
 
 #define NUM_FRAMES 20
@@ -44,20 +46,20 @@ pcli_print_trace (char *name, call_frame_t *frame)
                 frame = frame->next;
         }
 
-        size = backtrace(frames,NUM_FRAMES);
+        size = backtrace (frames, NUM_FRAMES);
         if (size <= 0) {
                 return;
         }
-        symbols = backtrace_symbols(frames,size);
+        symbols = backtrace_symbols (frames, size);
         if (!symbols) {
                 return;
         }
 
-        gf_log(name, GF_LOG_INFO, "Processor stack:");
+        gf_log (name, GF_LOG_INFO, "Processor stack:");
         for (i = 0; i < size; ++i) {
                 gf_log (name, GF_LOG_INFO, "%s", symbols[i]);
         }
-        free(symbols);
+        free (symbols);
 }
 
 int32_t
@@ -73,14 +75,14 @@ pcli_rename (call_frame_t *frame, xlator_t *this, loc_t *oldloc,
         if (!oldloc->parent) {
                 goto simple_unwind;
         }
-        if (inode_ctx_get(oldloc->parent,this,&value) != 0) {
+        if (inode_ctx_get (oldloc->parent, this, &value) != 0) {
                 goto simple_unwind;
         }
 
         if (value != PROT_ACT_NONE) {
                 gf_log (this->name, GF_LOG_WARNING,
                         "got rename for protected %s", oldloc->path);
-                pcli_print_trace(this->name,frame->next);
+                pcli_print_trace (this->name, frame->next);
                 if (value == PROT_ACT_REJECT) {
                         STACK_UNWIND_STRICT (rename, frame, -1, EPERM,
                                              NULL, NULL, NULL, NULL, NULL,
@@ -181,25 +183,25 @@ simple_unwind:
 int32_t
 init (xlator_t *this)
 {
-	if (!this->children || this->children->next) {
-		gf_log (this->name, GF_LOG_ERROR,
-			"translator not configured with exactly one child");
-		return -1;
-	}
-
-	if (!this->parents) {
-		gf_log (this->name, GF_LOG_WARNING,
-			"dangling volume. check volfile ");
-	}
-
-	return 0;
+        if (!this->children || this->children->next) {
+                gf_log (this->name, GF_LOG_ERROR,
+                        "translator not configured with exactly one child");
+                return -1;
+        }
+
+        if (!this->parents) {
+                gf_log (this->name, GF_LOG_WARNING,
+                        "dangling volume. check volfile ");
+        }
+
+        return 0;
 }
 
 
 void
 fini (xlator_t *this)
 {
-	return;
+        return;
 }
 
 
@@ -213,5 +215,5 @@ struct xlator_cbks cbks = {
 };
 
 struct volume_options options[] = {
-	{ .key = {NULL} },
+        { .key = {NULL} },
 };