diff options
Diffstat (limited to 'util/ich_descriptors_tool/ich_descriptors_tool.c')
| -rw-r--r-- | util/ich_descriptors_tool/ich_descriptors_tool.c | 17 |
1 files changed, 12 insertions, 5 deletions
diff --git a/util/ich_descriptors_tool/ich_descriptors_tool.c b/util/ich_descriptors_tool/ich_descriptors_tool.c index a1bce1b..1ca970a 100644 --- a/util/ich_descriptors_tool/ich_descriptors_tool.c +++ b/util/ich_descriptors_tool/ich_descriptors_tool.c @@ -25,7 +25,6 @@ #include <stdio.h> #include <stdint.h> #include <stdlib.h> -#include <sys/mman.h> #include <sys/types.h> #include <sys/stat.h> #include <fcntl.h> @@ -33,6 +32,13 @@ #include <string.h> #include <errno.h> #include "ich_descriptors.h" +/* Some DJGPP builds define __unix__ although they don't support mmap(). + * Cygwin defines __unix__ and supports mmap(), but it does not work well. + */ +#if !defined(__MSDOS__) && !defined(_WIN32) && (defined(unix) || defined(__unix__) || defined(__unix)) || (defined(__MACH__) && defined(__APPLE__)) +#define HAVE_MMAP 1 +#include <sys/mman.h> +#endif static void dump_file(const char *basename, const uint32_t *dump, unsigned int len, struct ich_desc_region *reg, unsigned int i) { @@ -161,16 +167,17 @@ int main(int argc, char *argv[]) if (len < 0) usage(argv, "Seeking to the end of the file failed"); +#ifdef HAVE_MMAP buf = mmap(NULL, len, PROT_READ, MAP_PRIVATE, fd, 0); - if (buf == (void *) -1) { + if (buf == (void *) -1) +#endif + { /* fallback for stupid OSes like cygwin */ - int ret; buf = malloc(len); if (!buf) usage(argv, "Could not allocate memory"); lseek(fd, 0, SEEK_SET); - ret = read(fd, buf, len); - if (ret != len) + if (len != read(fd, buf, len)) usage(argv, "Seeking to the end of the file failed"); } printf("The flash image has a size of %d [0x%x] bytes.\n", len, len); |
