diff options
| -rw-r--r-- | regress/sys/uvm/mmap_fixed/Makefile | 4 | ||||
| -rw-r--r-- | regress/sys/uvm/mmap_fixed/mmap_fixed.c | 33 |
2 files changed, 37 insertions, 0 deletions
diff --git a/regress/sys/uvm/mmap_fixed/Makefile b/regress/sys/uvm/mmap_fixed/Makefile new file mode 100644 index 00000000000..405f33cb805 --- /dev/null +++ b/regress/sys/uvm/mmap_fixed/Makefile @@ -0,0 +1,4 @@ +# $OpenBSD: Makefile,v 1.1.1.1 2006/04/06 20:39:03 kurt Exp $ +PROG=mmap_fixed + +.include <bsd.regress.mk> diff --git a/regress/sys/uvm/mmap_fixed/mmap_fixed.c b/regress/sys/uvm/mmap_fixed/mmap_fixed.c new file mode 100644 index 00000000000..4b3669ba5da --- /dev/null +++ b/regress/sys/uvm/mmap_fixed/mmap_fixed.c @@ -0,0 +1,33 @@ +/* $OpenBSD: mmap_fixed.c,v 1.1.1.1 2006/04/06 20:39:03 kurt Exp $ */ + +/* + * Public domain. 2006, Kurt Miller <kurt@intricatesoftware.com> + */ + +#include <sys/types.h> +#include <sys/mman.h> +#include <err.h> + +#define MEM_SIZE 1024*1024 + +/* + * Repetitively call mmap with MMAP_FIXED on the same region of memory + * to ensure process datasize is properly calculated. + */ + +int +main(void) +{ + void *mem_area; + int i; + + mem_area = mmap(0, MEM_SIZE, PROT_NONE, MAP_ANON, -1, 0); + + for (i = 0; i < 20000; i++) { + if (mmap(mem_area, MEM_SIZE, PROT_READ|PROT_WRITE|PROT_EXEC, + MAP_ANON|MAP_FIXED, -1, 0) == MAP_FAILED) + err(1, NULL); + } + + return (0); +} |