From 545167252d564ed13a669f62a29a5a2640c55a43 Mon Sep 17 00:00:00 2001 From: Zheng Bao Date: Mon, 22 Oct 2012 16:41:42 +0800 Subject: 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 Signed-off-by: Zheng Bao Reviewed-on: http://review.coreboot.org/1604 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi --- util/nvramtool/win32mmap.c | 49 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 49 insertions(+) create mode 100644 util/nvramtool/win32mmap.c (limited to 'util/nvramtool/win32mmap.c') 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 + +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); +} -- cgit v1.2.3