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Mint APE Loader v1.7

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This change reduces the memory requirements of your APE Loader by 10x,
in terms of virtual memory size, thanks to the help of alloca(). We're
also now creating argument blocks with the same layout across systems.
This commit is contained in:
Justine Tunney 2023-08-17 07:21:13 -07:00
parent d967a94c9a
commit 1d8937d528
No known key found for this signature in database
GPG key ID: BE714B4575D6E328
31 changed files with 367 additions and 656 deletions
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21
tool/build/unbuffer.c
View file

@ -81,13 +81,13 @@ int main(int argc, char *argv[]) {
if (!(prog = commandv(argv[optind], pathbuf, sizeof(pathbuf)))) {
kprintf("%s: command not found\n", argv[optind]);
return __COUNTER__ + 1;
exit(1);
}
if (outputpath) {
if ((outfd = creat(outputpath, 0644)) == -1) {
perror(outputpath);
return __COUNTER__ + 1;
exit(1);
}
}
@ -97,12 +97,12 @@ int main(int argc, char *argv[]) {
if (tcgetattr(1, &tio)) {
perror("tcgetattr");
return __COUNTER__ + 1;
exit(1);
}
if (openpty(&mfd, &sfd, 0, &tio, &wsz)) {
perror("openpty");
return __COUNTER__ + 1;
exit(1);
}
ignore.sa_flags = 0;
@ -116,7 +116,7 @@ int main(int argc, char *argv[]) {
if ((pid = fork()) == -1) {
perror("fork");
return __COUNTER__ + 1;
exit(1);
}
if (!pid) {
@ -148,13 +148,13 @@ int main(int argc, char *argv[]) {
rc = 0;
} else {
perror("read");
return __COUNTER__ + 1;
exit(1);
}
}
if (!(got = rc)) {
if (waitpid(pid, &ws, 0) == -1) {
perror("waitpid");
return __COUNTER__ + 1;
exit(1);
}
break;
}
@ -164,7 +164,7 @@ int main(int argc, char *argv[]) {
wrote = rc;
} else {
perror("write");
return __COUNTER__ + 1;
exit(1);
}
}
if (outputpath) {
@ -174,7 +174,7 @@ int main(int argc, char *argv[]) {
wrote = rc;
} else {
perror("write");
return __COUNTER__ + 1;
exit(1);
}
}
}
@ -187,6 +187,7 @@ int main(int argc, char *argv[]) {
if (WIFEXITED(ws)) {
return WEXITSTATUS(ws);
} else {
return 128 + WTERMSIG(ws);
raise(WTERMSIG(ws));
exit(128 + WTERMSIG(ws));
}
}