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Check for mmap() 

Apparently there exist systems with mprotect(), but not mmap()?
This commit is contained in:
Behdad Esfahbod 2011-05-17 15:05:34 -04:00
parent 4053f3f788
commit 5be7d047f6
2 changed files with 5 additions and 3 deletions
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2
configure.ac
View File

@ -34,7 +34,7 @@ AC_SUBST(HB_VERSION)
# Functions and headers # Functions and headers
AC_CHECK_FUNCS(mprotect sysconf getpagesize) AC_CHECK_FUNCS(mprotect sysconf getpagesize mmap)
AC_CHECK_HEADERS(unistd.h sys/mman.h) AC_CHECK_HEADERS(unistd.h sys/mman.h)
# Compiler flags # Compiler flags

6
test/test-blob.c
View File

@ -28,7 +28,7 @@
/* Unit tests for hb-blob.h */ /* Unit tests for hb-blob.h */
#if defined(HAVE_SYS_MMAN_H) && defined(HAVE_MPROTECT) #if defined(HAVE_SYS_MMAN_H) && defined(HAVE_MPROTECT) && defined(HAVE_MMAP)
# define TEST_MMAP 1 # define TEST_MMAP 1
@ -109,6 +109,7 @@ free_up_free (fixture_t *fixture)
} }
#ifdef TEST_MMAP
static uintptr_t static uintptr_t
get_pagesize (void) get_pagesize (void)
{ {
@ -133,6 +134,7 @@ free_up_munmap (fixture_t *fixture)
free_up (fixture); free_up (fixture);
munmap (fixture->data, get_pagesize ()); munmap (fixture->data, get_pagesize ());
} }
#endif
#include <errno.h> #include <errno.h>
static void static void
@ -164,7 +166,7 @@ fixture_init (fixture_t *fixture, gconstpointer user_data)
free_func = (hb_destroy_func_t) free_up_free; free_func = (hb_destroy_func_t) free_up_free;
break; break;
#if TEST_MMAP #ifdef TEST_MMAP
case HB_MEMORY_MODE_READONLY_MAY_MAKE_WRITABLE: case HB_MEMORY_MODE_READONLY_MAY_MAKE_WRITABLE:
{ {
uintptr_t pagesize = get_pagesize (); uintptr_t pagesize = get_pagesize ();