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Adapt fixdep to works with MinGW

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MinGW does not provide mman nor arpa/inet.h library.
This patch modify fixdep to work with windows without
using those library.

Change-Id: I3908735d0d989b165f2adb70b21f4cd41c8e15a6
Signed-off-by: Louise Mendoza <yonattan.a.louise.mendoza@intel.com>
This commit is contained in:
Louise Mendoza 2015-12-08 20:02:14 -06:00 • committed by Anas Nashif
commit 264617c83d
1 changed files with 76 additions and 11 deletions
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87
scripts/basic/fixdep.c
View file

@ -102,10 +102,15 @@
* through arch/um/include/uml-config.h; this fixdep "bug" makes sure that
* those files will have correct dependencies.
*/
#if !defined(_WIN32) && !defined(__WIN32__)
#define DO_MMAP 1
#endif
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/mman.h>
#if DO_MMAP
#include <sys/mman.h>
#endif
#include <unistd.h>
#include <fcntl.h>
#include <string.h>
@ -113,12 +118,24 @@
#include <stdio.h>
#include <limits.h>
#include <ctype.h>
#include <arpa/inet.h>
#define INT_CONF ntohl(0x434f4e46)
#define INT_ONFI ntohl(0x4f4e4649)
#define INT_NFIG ntohl(0x4e464947)
#define INT_FIG_ ntohl(0x4649475f)
#if !defined(_WIN32) && !defined(__WIN32__)
#include <arpa/inet.h>
#else
#include <winsock2.h>
#endif
#if !defined(_WIN32) && !defined(__WIN32__)
#define INT_CONF ntohl(0x434f4e46)
#define INT_ONFI ntohl(0x4f4e4649)
#define INT_NFIG ntohl(0x4e464947)
#define INT_FIG_ ntohl(0x4649475f)
#else
#define INT_CONF 0x464e4f43
#define INT_ONFI 0x49464e4f
#define INT_NFIG 0x4749464e
#define INT_FIG_ 0x5f474946
#endif
char *target;
char *depfile;
@ -278,13 +295,32 @@ static int strrcmp(char *s, char *sub)
return memcmp(s + slen - sublen, sub, sublen);
}
#if !DO_MMAP
static void *read_file_in(int fd, size_t size)
{
void *map = malloc(size);
if (!map)
return map;
if (read(fd, map, size) != size) {
perror("fixdep: read_file");
free(map);
return NULL;
}
return map;
}
#endif
static void do_config_file(const char *filename)
{
struct stat st;
int fd;
void *map;
#if !defined(_WIN32) && !defined(__WIN32__)
fd = open(filename, O_RDONLY);
#else
fd = open(filename, O_RDONLY | O_BINARY);
#endif
if (fd < 0) {
fprintf(stderr, "fixdep: error opening config file: ");
perror(filename);
@ -295,16 +331,27 @@ static void do_config_file(const char *filename)
close(fd);
return;
}
#if DO_MMAP
map = mmap(NULL, st.st_size, PROT_READ, MAP_PRIVATE, fd, 0);
if ((long) map == -1) {
perror("fixdep: mmap");
close(fd);
return;
}
#else
map = read_file_in(fd, st.st_size);
if (!map) {
close(fd);
return;
}
#endif
parse_config_file(map, st.st_size);
#if DO_MMAP
munmap(map, st.st_size);
#else
free(map);
#endif
close(fd);
}
@ -404,7 +451,11 @@ static void print_deps(void)
int fd;
void *map;
#ifdef _WIN32
fd = open(depfile, O_RDONLY | O_BINARY);
#else
fd = open(depfile, O_RDONLY);
#endif
if (fd < 0) {
fprintf(stderr, "fixdep: error opening depfile: ");
perror(depfile);
@ -420,16 +471,27 @@ static void print_deps(void)
close(fd);
return;
}
#if DO_MMAP
map = mmap(NULL, st.st_size, PROT_READ, MAP_PRIVATE, fd, 0);
if ((long) map == -1) {
perror("fixdep: mmap");
close(fd);
return;
}
#else
map = read_file_in(fd, st.st_size);
if (!map) {
close(fd);
return;
}
#endif
parse_dep_file(map, st.st_size);
#if DO_MMAP
munmap(map, st.st_size);
#else
free(map);
#endif
close(fd);
}
@ -440,8 +502,11 @@ static void traps(void)
int *p = (int *)test;
if (*p != INT_CONF) {
fprintf(stderr, "fixdep: sizeof(int) != 4 or wrong endianness? %#x\n",
*p);
fprintf(stderr, "fixdep: sizeof(int) : %ld\n",
sizeof(int));
fprintf(stderr, "fixdep: sizeof(int) != 4 or wrong endianness? %#x"
" vs %#x\n", *p, INT_CONF);
exit(2);
}
}