diff options
Diffstat (limited to 'sys/boot/common/interp.c')
| -rw-r--r-- | sys/boot/common/interp.c | 18 |
1 files changed, 13 insertions, 5 deletions
diff --git a/sys/boot/common/interp.c b/sys/boot/common/interp.c index 33f48e6..b9343a6 100644 --- a/sys/boot/common/interp.c +++ b/sys/boot/common/interp.c @@ -92,7 +92,7 @@ perform(int argc, char *argv[]) void interact(void) { - char input[256]; /* big enough? */ + static char input[256]; /* big enough? */ #ifndef BOOT_FORTH int argc; char **argv; @@ -178,14 +178,21 @@ command_include(int argc, char *argv[]) return(res); } +/* + * Header prepended to each line. The text immediately follows the header. + * We try to make this short in order to save memory -- the loader has + * limited memory available, and some of the forth files are very long. + */ struct includeline { - char *text; + struct includeline *next; +#ifndef BOOT_FORTH int flags; int line; #define SL_QUIET (1<<0) #define SL_IGNOREERR (1<<1) - struct includeline *next; +#endif + char text[0]; }; int @@ -236,13 +243,14 @@ include(const char *filename) } #endif /* Allocate script line structure and copy line, flags */ + if (*cp == '\0') + continue; /* ignore empty line, save memory */ sp = malloc(sizeof(struct includeline) + strlen(cp) + 1); - sp->text = (char *)sp + sizeof(struct includeline); strcpy(sp->text, cp); #ifndef BOOT_FORTH sp->flags = flags; -#endif sp->line = line; +#endif sp->next = NULL; if (script == NULL) { |
