diff options
Diffstat (limited to 'sys/dev/microcode/aic7xxx/aic7xxx_asm.c')
| -rw-r--r-- | sys/dev/microcode/aic7xxx/aic7xxx_asm.c | 102 |
1 files changed, 68 insertions, 34 deletions
diff --git a/sys/dev/microcode/aic7xxx/aic7xxx_asm.c b/sys/dev/microcode/aic7xxx/aic7xxx_asm.c index d03c1e9797b..698fa4e08b3 100644 --- a/sys/dev/microcode/aic7xxx/aic7xxx_asm.c +++ b/sys/dev/microcode/aic7xxx/aic7xxx_asm.c @@ -43,12 +43,13 @@ * are token separators. * *-M*************************************************************************/ -static char id[] = "$Id: aic7xxx_asm.c,v 1.1 1995/10/18 08:52:39 deraadt Exp $"; +static char id[] = "$Id: aic7xxx_asm.c,v 1.2 1996/05/05 12:42:38 deraadt Exp $"; #include <ctype.h> #include <stdio.h> #include <string.h> #include <stdlib.h> #include <unistd.h> +#include <fcntl.h> #define MEMORY 448 #define MAXLINE 1024 @@ -67,10 +68,9 @@ static char id[] = "$Id: aic7xxx_asm.c,v 1.1 1995/10/18 08:52:39 deraadt Exp $"; int debug; int lineno, LC; char *filename; -FILE *ifp, *ofp; unsigned char M[MEMORY][4]; -void +void error(char *s) { fprintf(stderr, "%s: %s at line %d\n", filename, s, lineno); @@ -107,7 +107,7 @@ typedef struct sym_t { struct sym_t *next; /* MUST BE FIRST */ char *name; int value; - int npatch; + int npatch; int *patch; } sym_t; @@ -151,7 +151,7 @@ lookup(char *name) return(NULL); } -void +void patch(sym_t *p, int location) { p->npatch += 1; @@ -223,7 +223,7 @@ getl(int *n) i = 0; - while (fgets(buf, sizeof(buf), ifp)) { + while (fgets(buf, sizeof(buf), stdin)) { lineno += 1; @@ -244,7 +244,7 @@ rescan: else error("too many tokens"); if (quote) { - quote++; + quote++; p = strchr(quote, '\"'); if (!p) error("unterminated string constant"); @@ -256,7 +256,7 @@ rescan: else error("too many tokens"); goto rescan; - } + } if (i) { *n = i; return(a); @@ -336,7 +336,7 @@ struct { { 0, 0, 0, 0, 0, 0, 0, 0 } }; -int +int eval_operand(char **a, int spec) { int i; @@ -536,7 +536,7 @@ crack(char **a, int n) #undef A void -assemble(void) +assemble(FILE *ofile) { int n; char **a; @@ -559,7 +559,7 @@ assemble(void) continue; if (n == 3 && !strcmp("VERSION", *a)) - fprintf(ofp, "#define %s \"%s\"\n", a[1], a[2]); + fprintf(ofile, "#define %s \"%s\"\n", a[1], a[2]); else { if (n == 3 && !strcmp("=", a[1])) define(*a, strtol(a[2], NULL, 0)); @@ -569,7 +569,7 @@ assemble(void) } backpatch(); - output(ofp); + output(ofile); if (debug) output(stderr); @@ -577,12 +577,15 @@ assemble(void) int main(int argc, char **argv) -{ int my_version_print_flag; +{ int c; + int pid; + int ifile; + FILE *ofile; + int fd[2]; - my_version_print_flag=0; - - while ((c = getopt(argc, argv, "dho:vD")) != EOF) { + ofile = NULL; + while ((c = getopt(argc, argv, "dho:vD:")) != EOF) { switch (c) { case 'd': debug = !0; @@ -599,23 +602,20 @@ main(int argc, char **argv) break; } case 'o': - ofp = fopen(optarg, "w"); - if (!ofp) { + + if ((ofile = fopen(optarg, "w")) == NULL) { perror(optarg); exit(EXIT_FAILURE); } break; case 'h': - printf("usage: %s [-d] [-Dname] [-ooutput] input\n", + printf("usage: %s [-d] [-Dname] [-ooutput] input\n", *argv); exit(EXIT_SUCCESS); break; case 'v': - if (!my_version_print_flag) - { printf("%s\n",id); - - my_version_print_flag=1; - } + printf("%s\n", id); + exit(EXIT_SUCCESS); break; default: exit(EXIT_FAILURE); @@ -624,28 +624,62 @@ main(int argc, char **argv) } if (argc - optind != 1) { - if (my_version_print_flag) - { exit(EXIT_SUCCESS); - } fprintf(stderr, "%s: must have one input file\n", *argv); exit(EXIT_FAILURE); } filename = argv[optind]; - ifp = fopen(filename, "r"); - if (!ifp) { + + if ((ifile = open(filename, O_RDONLY)) < 0) { perror(filename); exit(EXIT_FAILURE); } - if (!ofp) { - ofp = fopen(ADOTOUT, "w"); - if (!ofp) { + if (!ofile) { + if ((ofile = fopen(ADOTOUT, "w")) == NULL) { perror(ADOTOUT); exit(EXIT_FAILURE); } } - assemble(); - exit(EXIT_SUCCESS); + if (pipe(fd) < 0) { + perror("pipe failed"); + exit(1); + } + + if ((pid = fork()) < 0 ) { + perror("fork failed"); + exit(1); + } + else if (pid > 0) { /* Parent */ + close(fd[1]); /* Close write end */ + if (fd[0] != STDIN_FILENO) { + if (dup2(fd[0], STDIN_FILENO) != STDIN_FILENO) { + perror("dup2 error on stdin"); + exit(EXIT_FAILURE); + } + close(fd[0]); + } + assemble(ofile); + exit(EXIT_SUCCESS); + } + else { /* Child */ + close(fd[0]); /* Close Read end */ + if (fd[1] != STDOUT_FILENO) { + if (dup2(fd[1], STDOUT_FILENO) != STDOUT_FILENO) { + perror("dup2 error on stdout"); + exit(EXIT_FAILURE); + } + close(fd[1]); + } + if (ifile != STDIN_FILENO) { + if (dup2(ifile, STDIN_FILENO) != STDIN_FILENO) { + perror("dup2 error on stdin"); + exit(EXIT_FAILURE); + } + close(ifile); + } + execl("/usr/bin/cpp", "/usr/bin/cpp", "-P", "-", "-", NULL); + } + return(EXIT_SUCCESS); } |