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author | Ben Cheng <bccheng@google.com> | 2013-03-28 11:14:20 -0700 |
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committer | Ben Cheng <bccheng@google.com> | 2013-03-28 12:40:33 -0700 |
commit | af0c51ac87ab2a87caa03fa108f0d164987a2764 (patch) | |
tree | 4b8b470f7c5b69642fdab8d0aa1fbc148d02196b /gcc-4.8/libmudflap/testsuite/libmudflap.c/pass51-frag.c | |
parent | d87cae247d39ebf4f5a6bf25c932a14d2fdb9384 (diff) | |
download | toolchain_gcc-af0c51ac87ab2a87caa03fa108f0d164987a2764.tar.gz toolchain_gcc-af0c51ac87ab2a87caa03fa108f0d164987a2764.tar.bz2 toolchain_gcc-af0c51ac87ab2a87caa03fa108f0d164987a2764.zip |
[GCC 4.8] Initial check-in of GCC 4.8.0
Change-Id: I0719d8a6d0f69b367a6ab6f10eb75622dbf12771
Diffstat (limited to 'gcc-4.8/libmudflap/testsuite/libmudflap.c/pass51-frag.c')
-rw-r--r-- | gcc-4.8/libmudflap/testsuite/libmudflap.c/pass51-frag.c | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/gcc-4.8/libmudflap/testsuite/libmudflap.c/pass51-frag.c b/gcc-4.8/libmudflap/testsuite/libmudflap.c/pass51-frag.c new file mode 100644 index 000000000..2780ffd72 --- /dev/null +++ b/gcc-4.8/libmudflap/testsuite/libmudflap.c/pass51-frag.c @@ -0,0 +1,44 @@ +/* Test object-spanning accesses. This is most conveniently done with + mmap, thus the config.h specificity here. */ +#include "../config.h" + +#include <unistd.h> +#include <string.h> +#ifdef HAVE_SYS_MMAN_H +#include <sys/mman.h> +#endif + +int main () +{ +#ifndef MAP_ANONYMOUS +#define MAP_ANONYMOUS MAP_ANON +#endif +#ifndef MAP_FAILED +#define MAP_FAILED ((void *)-1) +#endif +#ifdef HAVE_MMAP + void *p; + unsigned pg = getpagesize (); + int rc; + + p = mmap (NULL, 4 * pg, PROT_READ|PROT_WRITE, + MAP_PRIVATE|MAP_ANONYMOUS, -1, 0); + if (p == MAP_FAILED) + return 1; + + memset (p, 0, 4*pg); + rc = munmap (p, pg); + if (rc < 0) return 1; + memset (p+pg, 0, 3*pg); + rc = munmap (p+pg, pg); + if (rc < 0) return 1; + memset (p+2*pg, 0, 2*pg); + rc = munmap (p+2*pg, pg); + if (rc < 0) return 1; + memset (p+3*pg, 0, pg); + rc = munmap (p+3*pg, pg); + if (rc < 0) return 1; +#endif + + return 0; +} |