diff --git a/libr/bin/format/mach0/mach0.c b/libr/bin/format/mach0/mach0.c
index 5f4d5fb70e..dac010b0dc 100644
--- a/libr/bin/format/mach0/mach0.c
+++ b/libr/bin/format/mach0/mach0.c
@@ -2782,7 +2782,8 @@ static void fill_exports_list(struct MACH0_(obj_t) *bin, const char *name, ut64
 const RList *MACH0_(get_symbols_list)(struct MACH0_(obj_t) *bin) {
 	struct symbol_t *symbols;
 	size_t i, j, s, symbols_size, symbols_count;
-	ut32 to, from;
+	ut32 to = UT32_MAX;
+	ut32 from = UT32_MAX;
 
 	r_return_val_if_fail (bin, NULL);
 	if (bin->symbols_cache) {
@@ -2812,7 +2813,7 @@ const RList *MACH0_(get_symbols_list)(struct MACH0_(obj_t) *bin) {
 	/* parse dynamic symbol table */
 	symbols_count = (bin->dysymtab.nextdefsym + \
 			bin->dysymtab.nlocalsym + \
-			bin->dysymtab.nundefsym );
+			bin->dysymtab.nundefsym);
 	symbols_count += bin->nsymtab;
 	ut64 tmp = symbols_count + 1;
 	if (SZT_MUL_OVFCHK (symbols_count + 1, 2)) {
@@ -2994,9 +2995,12 @@ static void assign_export_symbol_t(struct MACH0_(obj_t) *bin, const char *name,
 }
 
 const struct symbol_t *MACH0_(get_symbols)(struct MACH0_(obj_t) *bin) {
+	r_return_val_if_fail (bin, NULL);
 	struct symbol_t *symbols;
-	int j, s, stridx, symbols_size, symbols_count;
-	ut32 to, from, i;
+	int j = 0, s, stridx, symbols_size, symbols_count;
+	ut32 to = UT32_MAX;
+	ut32 from = UT32_MAX;
+	ut32 i;
 
 	if (bin->symbols) {
 		return bin->symbols;
@@ -3007,7 +3011,6 @@ const struct symbol_t *MACH0_(get_symbols)(struct MACH0_(obj_t) *bin) {
 		return NULL;
 	}
 
-	r_return_val_if_fail (bin, NULL);
 	int n_exports = walk_exports (bin, NULL, NULL);
 
 	symbols_count = n_exports;
diff --git a/libr/core/p/core_sixref.c b/libr/core/p/core_sixref.c
index 2c68f0f029..4ff5dacb88 100644
--- a/libr/core/p/core_sixref.c
+++ b/libr/core/p/core_sixref.c
@@ -216,7 +216,7 @@ static void siguza_xrefs_chunked(RCore *core, ut64 search, int lenbytes) {
 				addref (core, addr, addr + off, R_ANAL_REF_TYPE_CODE);
 				// r_cons_printf ("ax 0x%"PFMT64x" 0x%"PFMT64x"\n", addr + off, addr);
 			} else if (addr + off == search) {
-				const char *cond;
+				const char *cond = "al";
 				switch(v & 0xf)
 				{
 					case 0x0: cond = "eq"; break;
@@ -236,7 +236,7 @@ static void siguza_xrefs_chunked(RCore *core, ut64 search, int lenbytes) {
 					case 0xe: cond = "al"; break;
 					case 0xf: cond = "nv"; break;
 				}
-				r_cons_printf("%#"PFMT64x": b.%s %#"PFMT64x"\n", addr, cond, search);
+				r_cons_printf ("%#"PFMT64x": b.%s %#"PFMT64x"\n", addr, cond, search);
 			}
 		}
 		else if ((v & 0x7e000000) == 0x34000000) // cbz and cbnz
diff --git a/libr/main/rabin2.c b/libr/main/rabin2.c
index a01d1c7d9a..63ccd5b805 100644
--- a/libr/main/rabin2.c
+++ b/libr/main/rabin2.c
@@ -278,58 +278,57 @@ static int rabin_dump_symbols(RBin *bin, int len) {
 }
 
 static bool __dumpSections(RBin *bin, const char *scnname, const char *output, const char *file, bool raw) {
-	RList *sections;
 	RListIter *iter;
 	RBinSection *section;
-	ut8 *buf;
-	char *ret;
-	int r;
-
-	if (!(sections = r_bin_get_sections (bin))) {
+	RList *sections = r_bin_get_sections (bin);
+	if (!sections || r_list_empty (sections)) {
+		R_LOG_WARN ("No sections to dump");
 		return false;
 	}
 
 	r_list_foreach (sections, iter, section) {
-		if (r_str_glob (section->name, scnname)) {
-			if (!(buf = malloc (section->size))) {
-				return false;
-			}
-			if ((section->size * 2) + 1 < section->size) {
-				free (buf);
-				return false;
-			}
-			if (!(ret = malloc (section->size*2+1))) {
-				free (buf);
-				return false;
-			}
-			if (section->paddr > r_buf_size (bin->cur->buf) ||
-				section->paddr + section->size > r_buf_size (bin->cur->buf)) {
-				free (buf);
-				free (ret);
-				return false;
-			}
-			r = r_buf_read_at (bin->cur->buf, section->paddr,
-					buf, section->size);
-			if (r < 1) {
-				free (buf);
-				free (ret);
-				return false;
-			}
-			//it does mean the user specified an output file
-			if (strcmp (output, file)) {
-				r_file_dump (output, buf, section->size, 0);
-			} else {
-				if (raw) {
-					write (1, buf, section->size);
-				} else {
-					r_hex_bin2str (buf, section->size, ret);
-					printf ("%s\n", ret);
-				}
-			}
+		if (!r_str_glob (section->name, scnname)) {
+			continue;
+		}
+		const size_t ss = section->size;
+		if ((ss * 2) + 1 < ss) {
+			return false;
+		}
+		ut8 *buf = malloc (ss);
+		char *ret = malloc (ss * 2 + 1);
+		if (R_UNLIKELY (!buf || !ret)) {
 			free (buf);
 			free (ret);
-			break;
+			return false;
 		}
+		if (section->paddr > r_buf_size (bin->cur->buf) ||
+			section->paddr + ss > r_buf_size (bin->cur->buf)) {
+			free (buf);
+			free (ret);
+			return false;
+		}
+		int r = r_buf_read_at (bin->cur->buf, section->paddr, buf, ss);
+		if (r < 1) {
+			free (buf);
+			free (ret);
+			return false;
+		}
+		//it does mean the user specified an output file
+		if (strcmp (output, file)) {
+			r_file_dump (output, buf, ss, 0);
+		} else {
+			if (raw) {
+				if (write (1, buf, ss) != ss) {
+					R_LOG_WARN ("write truncated");
+				}
+			} else {
+				r_hex_bin2str (buf, ss, ret);
+				printf ("%s\n", ret);
+			}
+		}
+		free (buf);
+		free (ret);
+		break;
 	}
 	return true;
 }
diff --git a/sys/profiling.sh b/sys/profiling.sh
new file mode 100755
index 0000000000..e7f51b86c5
--- /dev/null
+++ b/sys/profiling.sh
@@ -0,0 +1,4 @@
+#!/bin/sh
+export CFLAGS="-pg -g -O1 -no-pie"
+export LDFLAGS="$CFLAGS"
+sys/install.sh