diff options
author | Zheng Bao <fishbaozi@gmail.com> | 2012-10-22 16:41:42 +0800 |
---|---|---|
committer | Patrick Georgi <patrick@georgi-clan.de> | 2012-10-22 21:49:54 +0200 |
commit | 545167252d564ed13a669f62a29a5a2640c55a43 (patch) | |
tree | 3b75a5fde02b94291440edccb3899950b4502493 /util/nvramtool/win32mmap.c | |
parent | c31cdd8662e770fb17a9c78e2fc508967c4795f2 (diff) |
build: build coreboot on mingw.
regex, pdcurses, wsock(for itohl) are seperated libraries. mmap and unmmap are
ported from git.
Issues:
1. The length of command line is limited. That makes the Thather can not be built
because too many obj.o need to be built.
Change-Id: I1d60ec5c7720c1e712e246c4cd12e4b718fed05f
Signed-off-by: Zheng Bao <zheng.bao@amd.com>
Signed-off-by: Zheng Bao <fishbaozi@gmail.com>
Reviewed-on: http://review.coreboot.org/1604
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
Diffstat (limited to 'util/nvramtool/win32mmap.c')
-rw-r--r-- | util/nvramtool/win32mmap.c | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/util/nvramtool/win32mmap.c b/util/nvramtool/win32mmap.c new file mode 100644 index 0000000000..f44dec88fc --- /dev/null +++ b/util/nvramtool/win32mmap.c @@ -0,0 +1,49 @@ +#include "common.h" +#include <windows.h> + +static inline size_t xsize_t(off_t len) +{ + if (len > (size_t) len) + die("Cannot handle files this big"); + return (size_t)len; +} + +void *win32_mmap(void *start, size_t length, int prot, int flags, int fd, off_t offset) +{ + HANDLE hmap; + void *temp; + off_t len; + struct stat st; + uint64_t o = offset; + uint32_t l = o & 0xFFFFFFFF; + uint32_t h = (o >> 32) & 0xFFFFFFFF; + + if (!fstat(fd, &st)) + len = st.st_size; + else + printf("mmap: could not determine filesize"); + + if ((length + offset) > len) + length = xsize_t(len - offset); + + if (!(flags & MAP_PRIVATE)) + printf("Invalid usage of mmap when built with USE_WIN32_MMAP"); + + hmap = CreateFileMapping((HANDLE)_get_osfhandle(fd), 0, PAGE_WRITECOPY, + 0, 0, 0); + + if (!hmap) + return MAP_FAILED; + + temp = MapViewOfFileEx(hmap, FILE_MAP_COPY, h, l, length, start); + + if (!CloseHandle(hmap)) + printf("unable to close file mapping handle"); + + return temp ? temp : MAP_FAILED; +} + +int win32_munmap(void *start, size_t length) +{ + return !UnmapViewOfFile(start); +} |