diff options
Diffstat (limited to 'testsuite/libffi.special/ffitestcxx.h')
-rw-r--r-- | testsuite/libffi.special/ffitestcxx.h | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/testsuite/libffi.special/ffitestcxx.h b/testsuite/libffi.special/ffitestcxx.h new file mode 100644 index 0000000..e300cce --- /dev/null +++ b/testsuite/libffi.special/ffitestcxx.h @@ -0,0 +1,96 @@ +#include <stdlib.h> +#include <stdio.h> +#include <fcntl.h> +#include <ffi.h> +#include "fficonfig.h" + +#define MAX_ARGS 256 + + +/* Define __UNUSED__ that also other compilers than gcc can run the tests. */ +#undef __UNUSED__ +#if defined(__GNUC__) +#define __UNUSED__ __attribute__((__unused__)) +#else +#define __UNUSED__ +#endif + +#define CHECK(x) (!(x) ? abort() : (void)0) + +/* Prefer MAP_ANON(YMOUS) to /dev/zero, since we don't need to keep a + file open. */ +#ifdef HAVE_MMAP_ANON +# undef HAVE_MMAP_DEV_ZERO + +# include <sys/mman.h> +# ifndef MAP_FAILED +# define MAP_FAILED -1 +# endif +# if !defined (MAP_ANONYMOUS) && defined (MAP_ANON) +# define MAP_ANONYMOUS MAP_ANON +# endif +# define USING_MMAP + +#endif + +#ifdef HAVE_MMAP_DEV_ZERO + +# include <sys/mman.h> +# ifndef MAP_FAILED +# define MAP_FAILED -1 +# endif +# define USING_MMAP + +#endif + + +/* MinGW kludge. */ +#ifdef _WIN64 +#define PRIdLL "I64d" +#define PRIuLL "I64u" +#else +#define PRIdLL "lld" +#define PRIuLL "llu" +#endif + +#ifdef USING_MMAP +static inline void * +allocate_mmap (size_t size) +{ + void *page; +#if defined (HAVE_MMAP_DEV_ZERO) + static int dev_zero_fd = -1; +#endif + +#ifdef HAVE_MMAP_DEV_ZERO + if (dev_zero_fd == -1) + { + dev_zero_fd = open ("/dev/zero", O_RDONLY); + if (dev_zero_fd == -1) + { + perror ("open /dev/zero: %m"); + exit (1); + } + } +#endif + + +#ifdef HAVE_MMAP_ANON + page = mmap (NULL, size, PROT_READ | PROT_WRITE | PROT_EXEC, + MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); +#endif +#ifdef HAVE_MMAP_DEV_ZERO + page = mmap (NULL, size, PROT_READ | PROT_WRITE | PROT_EXEC, + MAP_PRIVATE, dev_zero_fd, 0); +#endif + + if (page == MAP_FAILED) + { + perror ("virtual memory exhausted"); + exit (1); + } + + return page; +} + +#endif |