diff options
Diffstat (limited to 'libffi/testsuite/libffi.call/ffitest.h')
| -rw-r--r-- | libffi/testsuite/libffi.call/ffitest.h | 71 |
1 files changed, 70 insertions, 1 deletions
diff --git a/libffi/testsuite/libffi.call/ffitest.h b/libffi/testsuite/libffi.call/ffitest.h index 7856405d2f5..2d0df0e7734 100644 --- a/libffi/testsuite/libffi.call/ffitest.h +++ b/libffi/testsuite/libffi.call/ffitest.h @@ -2,8 +2,77 @@ #include <stdio.h> #include <string.h> #include <ffi.h> +#include "fficonfig.h" #define MAX_ARGS 256 -#define CHECK(x) !(x) ? abort() : 0 +#define CHECK(x) !(x) ? abort() : 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 + +#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 |