scc

Simple C99 Compiler
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commit 2d86c0725718e46bdf246d2434b7f2d123a3faa5
parent 283bf2e17c0ffb78933cc52c502803609dfadda7
Author: FRIGN <dev@frign.de>
Date:   Wed, 25 May 2016 16:47:33 +0200

[driver] neither call abort(), nor exit(), but _exit() after exec-fail

exit() among other things does some cleanup. We cannot guarantee a
proper application state after a failed exec though, so we have to
resort to _exit() which does not do any cleanups.

Diffstat:
driver/posix/scc.c | 12+++++-------
1 file changed, 5 insertions(+), 7 deletions(-)

diff --git a/driver/posix/scc.c b/driver/posix/scc.c @@ -48,12 +48,11 @@ cc1(int fd) dup2(fd, 1); fmt = (arch) ? "%s/libexec/scc/cc1-%s" : "%s/libexec/scc/cc1"; r = snprintf(cmd, sizeof(cmd), fmt, PREFIX, arch); - if (r == sizeof(cmd)) { + if (r == sizeof(cmd)) die("scc: incorrect prefix\n"); - } execv(cmd, argcc1); - die("scc: execv cc1: %s", strerror(errno)); - abort(); + fprintf(stderr, "scc: execv cc1: %s\n", strerror(errno)); + _exit(1); default: pid_cc1 = pid; close(fd); @@ -75,12 +74,11 @@ cc2(int fd) dup2(fd, 0); fmt = (arch) ? "%s/libexec/scc/cc2-%s" : "%s/libexec/scc/cc2"; r = snprintf(cmd, sizeof(cmd), fmt, PREFIX, arch); - if (r == sizeof(cmd)) { + if (r == sizeof(cmd)) die("scc: incorrect prefix"); - } execv(cmd, argcc2); fprintf(stderr, "scc: execv cc2: %s\n", strerror(errno)); - abort(); + _exit(1); default: pid_cc2 = pid; close(fd);