diff options
Diffstat (limited to 'util/m5/m5.c')
-rw-r--r-- | util/m5/m5.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/util/m5/m5.c b/util/m5/m5.c index 021816ce3..1ddaaf66d 100644 --- a/util/m5/m5.c +++ b/util/m5/m5.c @@ -51,10 +51,15 @@ #include <stdio.h> #include <stdlib.h> #include <string.h> +#include <sys/mman.h> +#include <sys/stat.h> +#include <sys/types.h> #include <unistd.h> #include "m5op.h" +void *m5_mem = NULL; + char *progname; char *command = "unspecified"; void usage(); @@ -315,6 +320,26 @@ usage() exit(1); } +static void +map_m5_mem() +{ +#ifdef M5OP_ADDR + int fd; + + fd = open("/dev/mem", O_RDWR | O_SYNC); + if (fd == -1) { + perror("Can't open /dev/mem"); + exit(1); + } + + m5_mem = mmap(NULL, 0x10000, PROT_READ | PROT_WRITE, MAP_SHARED, fd, M5OP_ADDR); + if (!m5_mem) { + perror("Can't mmap /dev/mem"); + exit(1); + } +#endif +} + int main(int argc, char *argv[]) { @@ -322,6 +347,8 @@ main(int argc, char *argv[]) if (argc < 2) usage(1); + map_m5_mem(); + command = argv[1]; argv += 2; |