clean up uclibc patch/config version handling a bit

[openwrt/svn-archive/archive.git] / toolchain / uClibc / patches / 001-fix_mmap.patch

diff --git a/toolchain/uClibc/patches/001-fix_mmap.patch b/toolchain/uClibc/patches/001-fix_mmap.patch
deleted file mode 100644 (file)
index 38cf60a..0000000
--- a/toolchain/uClibc/patches/001-fix_mmap.patch
+++ /dev/null
@@ -1,91 +0,0 @@
---- /dev/null
-+++ b/test/mmap/mmap2.c
-@@ -0,0 +1,41 @@
-+/* When trying to map /dev/mem with offset 0xFFFFF000 on the ARM platform, mmap
-+ * returns -EOVERFLOW.
-+ *
-+ * Since off_t is defined as a long int and the sign bit is set in the address,
-+ * the shift operation shifts in ones instead of zeroes
-+ * from the left. This results the offset sent to the kernel function becomes
-+ * 0xFFFFFFFF instead of 0x000FFFFF with MMAP2_PAGE_SHIFT set to 12.
-+ */
-+
-+#include <unistd.h>
-+#include <stdio.h>
-+#include <stdlib.h>
-+#include <string.h>
-+#include <errno.h>
-+#include <fcntl.h>
-+#include <sys/mman.h>
-+
-+#define FATAL do { fprintf(stderr, "Error at line %d, file %s (%d) [%s]\n", \
-+  __LINE__, __FILE__, errno, strerror(errno)); exit(1); } while(0)
-+
-+#define MAP_SIZE 4096UL
-+#define MAP_MASK (MAP_SIZE - 1)
-+
-+int main(int argc, char **argv) {
-+    void* map_base = 0;
-+    int fd;
-+    off_t target = 0xfffff000;
-+    if((fd = open("/dev/mem", O_RDWR | O_SYNC)) == -1) FATAL;
-+    printf("/dev/mem opened.\n");
-+    fflush(stdout);
-+
-+   /* Map one page */
-+    map_base = mmap(0, MAP_SIZE, PROT_READ | PROT_WRITE, MAP_SHARED,
-+                        fd, target & ~MAP_MASK);
-+    if(map_base == (void *) -1) FATAL;
-+    printf("Memory mapped at address %p.\n", map_base);
-+    fflush(stdout);
-+    if(munmap(map_base, MAP_SIZE) == -1) FATAL;
-+    close(fd);
-+    return 0;
-+}
---- a/libc/sysdeps/linux/arm/mmap.c
-+++ b/libc/sysdeps/linux/arm/mmap.c
-@@ -27,7 +27,6 @@ __ptr_t mmap(__ptr_t addr, size_t len, i
- 
- #elif defined  (__NR_mmap2)
- #define __NR__mmap __NR_mmap2
--
- #ifndef MMAP2_PAGE_SHIFT
- # define MMAP2_PAGE_SHIFT 12
- #endif
-@@ -39,9 +38,17 @@ __ptr_t mmap(__ptr_t addr, size_t len, i
- {
-   /* check if offset is page aligned */
-     if (offset & ((1 << MMAP2_PAGE_SHIFT) - 1))
-+    {
-+        __set_errno(EINVAL);
-         return MAP_FAILED;
-+    }
-+#ifdef __USE_FILE_OFFSET64
-+  return (__ptr_t) _mmap (addr, len, prot, flags,
-+                                                fd,((__u_quad_t) offset >> MMAP2_PAGE_SHIFT));
-+#else
-   return (__ptr_t) _mmap (addr, len, prot, flags,
--                                                fd,(off_t) (offset >> MMAP2_PAGE_SHIFT));
-+                          fd,((__u_long) offset >> MMAP2_PAGE_SHIFT));
-+#endif
- }
- #elif defined (__NR_mmap)
- # define __NR__mmap __NR_mmap
---- a/libc/sysdeps/linux/common/mmap64.c
-+++ b/libc/sysdeps/linux/common/mmap64.c
-@@ -58,8 +58,13 @@ __ptr_t mmap64(__ptr_t addr, size_t len,
-               __set_errno(EINVAL);
-               return MAP_FAILED;
-       }
--
--      return __syscall_mmap2(addr, len, prot, flags, fd, (off_t) (offset >> MMAP2_PAGE_SHIFT));
-+#ifdef __USE_FILE_OFFSET64
-+  return __syscall_mmap2(addr, len, prot, flags,
-+                         fd,((__u_quad_t)offset >> MMAP2_PAGE_SHIFT));
-+#else
-+   return __syscall_mmap2(addr, len, prot, flags,
-+                          fd,((__u_long)offset >> MMAP2_PAGE_SHIFT));
-+#endif
- }
- 
- # endif