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better mmuhack usage

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git-svn-id: file:///home/notaz/opt/svn/PicoDrive/platform@184 be3aeb3a-fb24-0410-a615-afba39da0efa
This commit is contained in:
notaz 2007-07-05 20:33:23 +00:00
parent 576fc63792
commit 9e68ce27d4
2 changed files with 19 additions and 15 deletions
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32
gp2x/squidgehack.c
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@ -12,25 +12,29 @@ extern char **g_argv;
int mmuhack(void)
{
char kocmd[1024];
int i, mmufd = open("/dev/mmuhack", O_RDWR);
int i, mmufd;
if(mmufd < 0) {
strcpy(kocmd, "/sbin/insmod ");
strncpy(kocmd+13, g_argv[0], 1023-13);
kocmd[1023] = 0;
for (i = strlen(kocmd); i > 0; i--)
if (kocmd[i] == '/') { kocmd[i] = 0; break; }
strcat(kocmd, "/mmuhack.o");
/* some programs like some versions of gpSP use some weird version of mmuhack.o
* which doesn't seem to work. What's even worse they leave their mmuhack loaded on exit.
* So we must remove whatever may be left and always reload _our_ mmuhack.o */
system("/sbin/rmmod mmuhack");
strcpy(kocmd, "/sbin/insmod ");
strncpy(kocmd+13, g_argv[0], 1023-13);
kocmd[1023] = 0;
for (i = strlen(kocmd); i > 0; i--)
if (kocmd[i] == '/') { kocmd[i] = 0; break; }
strcat(kocmd, "/mmuhack.o");
printf("Installing NK's kernel module for Squidge MMU Hack (%s)...\n", kocmd);
system(kocmd);
mmufd = open("/dev/mmuhack", O_RDWR);
printf("Installing NK's kernel module for Squidge MMU Hack (%s)...\n", kocmd);
system(kocmd);
mmufd = open("/dev/mmuhack", O_RDWR);
}
if(mmufd < 0) return 0;
close(mmufd);
return 1;
}
}
/* Unload MMU Hack kernel module after closing all memory devices*/