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/* gcc on mingw is hardcoded to use /mingw (which is c:/mingw) to
find various files. If this is a different version of mingw to the
one that we have in the GHC tree then things can go wrong. We
therefore need to add various -B flags to the gcc commandline,
so that it uses our in-tree mingw. Hence this wrapper. */
#include "cwrapper.h"
#include <errno.h>
#include <process.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#include <string.h>
void die(const char *fmt, ...) {
va_list argp;
va_start(argp, fmt);
vfprintf(stderr, fmt, argp);
va_end(argp);
exit(1);
}
char *mkString(const char *fmt, ...) {
char *p;
int i, j;
va_list argp;
va_start(argp, fmt);
i = vsnprintf(NULL, 0, fmt, argp);
va_end(argp);
if (i < 0) {
die("snprintf 0 failed: errno %d: %s\n", errno, strerror(errno));
}
p = malloc(i + 1);
if (p == NULL) {
die("malloc failed: errno %d: %s\n", errno, strerror(errno));
}
va_start(argp, fmt);
j = vsnprintf(p, i + 1, fmt, argp);
va_end(argp);
if (i < 0) {
die("snprintf with %d failed: errno %d: %s\n",
i + 1, errno, strerror(errno));
}
return p;
}
char *quote(char *str) {
char *quotedStr;
char *p;
quotedStr = malloc(2 * strlen(str) + 2 + 1);
if (quotedStr == NULL) {
die("malloc failed: errno %d: %s\n", errno, strerror(errno));
}
p = quotedStr;
*p++ = '"';
while (*str) {
if (*str == '"') {
*p++ = '\\';
}
*p++ = *str++;
}
*p++ = '"';
*p = '\0';
return quotedStr;
}
__attribute__((noreturn)) int run(char *exePath, int numArgs1, char **args1, int numArgs2, char **args2) {
char **p;
char **newArgv;
int i, ret;
newArgv = malloc(sizeof(char *) * (1 + numArgs1 + numArgs2 + 1));
if (newArgv == NULL) {
die("malloc failed: errno %d: %s\n", errno, strerror(errno));
}
p = newArgv;
*p++ = quote(exePath);
for (i = 0; i < numArgs1; i++) {
*p++ = quote(args1[i]);
}
for (i = 0; i < numArgs2; i++) {
*p++ = quote(args2[i]);
}
*p = NULL;
ret = spawnv(_P_WAIT, exePath, (const char* const*)newArgv);
if (errno) {
die("spawnv failed: errno %d: %s\n", errno, strerror(errno));
}
exit(ret);
}
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