add a simple test of mtrace

.gitignore

@@ -23,3 +23,6 @@ test-inline-assembly
 test-inline-assembly.s
 uiowa-threads-example
 tags
+mtrace-test
+mtrace-test.trace
+mtrace-test.txt

Makefile

@@ -1,7 +1,9 @@
 CFLAGS=-std=c99 -Wextra -pedantic -g -O2
 
-TARGETS=approximate-pi linked-list mandelbrot threads circular-buffer structs ncurses-pong bit-fuckery bit-fuckery2 checkcheck multibrot bloom wo-lernen lua-foo binsearch test-inline-assembly uiowa-threads-example
+CFLAGS=-std=c99 -Wextra -pedantic -g -O0
-EXTRAS=mandelbrot.bmp multibrot.png test-inline-assembly.s tags
+
+TARGETS=approximate-pi linked-list mandelbrot threads circular-buffer structs ncurses-pong bit-fuckery bit-fuckery2 checkcheck multibrot bloom wo-lernen lua-foo binsearch test-inline-assembly uiowa-threads-example mtrace-test
+EXTRAS=mandelbrot.bmp multibrot.png test-inline-assembly.s tags mtrace-test.trace mtrace-test.txt
 
 .PHONY: all
 all: $(TARGETS) $(EXTRAS)
@@ -50,5 +52,11 @@ test-inline-assembly: test-inline-assembly.c
 test-inline-assembly.s: test-inline-assembly.c
 	$(CC) -Wall -S -o $@ $<
 
+mtrace-test.trace: mtrace-test
+	MALLOC_TRACE=$@ ./mtrace-test
+
+mtrace-test.txt: mtrace-test.trace
+	-mtrace mtrace-test mtrace-test.trace > mtrace-test.txt
+
 uiowa-threads-example: uiowa-threads.o uiowa-threads-example.c
 	$(CC) $(CFLAGS) -o $@ $^

mtrace-test.c

@@ -0,0 +1,12 @@
+#include <mcheck.h>
+#include <stdlib.h>
+
+int main(void) {
+  mtrace();
+
+  int* a = malloc(sizeof(int));
+
+  muntrace();
+
+  exit(EXIT_SUCCESS);
+}