static-jemalloc.c

/* Minimal exapmle of static jemalloc.
 *
 * $ gcc -g3 -o main main.cpp -Wl,-Bstatic -ljemalloc_pic -Wl,-Bdynamic -nodefaultlibs -lc -lpthread -ldl -lgcc
 * (or if you have only libjemalloc.a then -ljemalloc)
 * NOTE: order is important
 *
 * $ ldd main
 *         linux-vdso.so.1 (0x00007ffff7fcb000)
 *         libc.so.6 => /usr/lib/libc.so.6 (0x00007ffff7b22000)
 *         libpthread.so.0 => /usr/lib/libpthread.so.0 (0x00007ffff7b01000)
 *         libdl.so.2 => /usr/lib/libdl.so.2 (0x00007ffff7afa000)
 *         /lib64/ld-linux-x86-64.so.2 => /usr/lib64/ld-linux-x86-64.so.2 (0x00007ffff7fcd000)
 *
 * $ gdb -q -ex start -ex 'b malloc' -ex c -ex bt ./main
 *
 * Breakpoint 2, malloc (size=9) at tsd.h:341
 * 341     tsd.h: No such file or directory.
 * #0  malloc (size=9) at tsd.h:341
 * #1  0x00007ffff7e6534f in strdup () from /usr/lib/libc.so.6
 * #2  0x000055555555a200 in main () at main.cpp:16
 *
 * NOTE: if you configured jemalloc with prefix,
 * than take a look at malloc hooks example [1].
 *
 *   [1]: http://jemalloc.net/mailman/jemalloc-discuss/2013-July/000617.html
 */

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

int main()
{
	char *body = strdup("It works");
	puts(body);
	free(body);

	return 0;
}