Add MODE=optlinux build mode (#141)

libc/testlib/benchrunner.c

@@ -18,6 +18,7 @@
 ╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/calls/calls.h"
 #include "libc/calls/kntprioritycombos.internal.h"
+#include "libc/errno.h"
 #include "libc/log/log.h"
 #include "libc/nexgen32e/x86feature.h"
 #include "libc/runtime/runtime.h"
@@ -51,9 +52,12 @@ void testlib_benchwarmup(void) {
  * @see BENCH()
  */
 void testlib_runallbenchmarks(void) {
+  int e;
+  e = errno;
   _peekall();
   mlockall(MCL_CURRENT);
   nice(-1);
+  errno = e;
   __log_level = kLogWarn;
   testlib_runtestcases(__bench_start, __bench_end, testlib_benchwarmup);
 }

libc/testlib/leaks.c

@@ -71,7 +71,7 @@ noasan void testlib_checkformemoryleaks(void) {
   struct mallinfo mi;
   if (!cmpxchg(&once, false, true)) {
     __printf("testlib_checkformemoryleaks() may only be called once\n");
-    _Exit(1);
+    exit(1);
   }
   __cxa_finalize(0);
   if (!IsAsan()) {

libc/testlib/quota.c

@@ -47,7 +47,7 @@ static relegated void DieBecauseOfQuota(int rc, const char *message) {
   gethostname(hostname, sizeof(hostname));
   __printf("%s on %s pid %d\n", message, hostname, (long)__getpid());
   PrintBacktraceUsingSymbols(2, 0, GetSymbolTable());
-  _Exit(rc);
+  exit(rc);
 }
 
 static relegated void OnXcpu(int sig) {
@@ -89,7 +89,7 @@ relegated void __oom_hook(size_t request) {
   __printf("\nTHE STRAW THAT BROKE THE CAMEL'S BACK\n");
   PrintBacktraceUsingSymbols(2, 0, GetSymbolTable());
   PrintSystemMappings(2);
-  _Exit(42);
+  exit(42);
 }
 
 static textstartup void InstallQuotaHandlers(void) {

libc/testlib/showerror.c

@@ -37,18 +37,15 @@ testonly void testlib_showerror(const char *file, int line, const char *func,
   /* TODO(jart): Pay off tech debt re duplication */
   __getpid(); /* make strace easier to read */
   __getpid();
-  __printf("%serror%s:%s:%d%s: %s() in %s(%s)\n"
+  __printf("%serror%s%s:%s:%d%s: %s() in %s(%s)\n"
            "\t%s\n"
            "\t\tneed %s %s\n"
            "\t\t got %s\n"
            "\t%s%s\n"
            "\t%s%s\n",
-           !g_isterminalinarticulate ? "\e[91;1m" : "",
-           !g_isterminalinarticulate ? "\e[22;94;49m" : "", file, (long)line,
-           !g_isterminalinarticulate ? "\e[0m" : "", method, func,
-           g_fixturename, code, v1, symbol, v2,
-           !g_isterminalinarticulate ? "\e[35m" : "", strerror(errno),
-           program_executable_name, !g_isterminalinarticulate ? "\e[0m" : "");
+           RED2, UNBOLD, BLUE1, file, (long)line, RESET, method, func,
+           g_fixturename, code, v1, symbol, v2, SUBTLE, strerror(errno),
+           program_executable_name, RESET);
   free_s(&v1);
   free_s(&v2);
 }
@@ -58,67 +55,36 @@ testonly void testlib_showerror_(int line, const char *wantcode,
                                  const char *gotcode, char *FREED_want,
                                  char *FREED_got, const char *fmt, ...) {
   int e;
-  char *p;
   va_list va;
   char hostname[32];
-  __getpid();
-  __getpid();
-  p = __fatalbuf;
   e = errno;
-  p = __stpcpy(p, RED2);
-  p = __stpcpy(p, "error");
-  p = __stpcpy(p, UNBOLD);
-  p = __stpcpy(p, ":");
-  p = __stpcpy(p, BLUE1);
-  p = __stpcpy(p, testlib_showerror_file);
-  p = __stpcpy(p, ":");
-  p = __intcpy(p, line);
-  p = __stpcpy(p, RESET);
-  p = __stpcpy(p, ": ");
-  p = __stpcpy(p, testlib_showerror_func);
-  p = __stpcpy(p, "(");
-  p = __stpcpy(p, g_fixturename);
-  p = __stpcpy(p, ")\n\t");
-  p = __stpcpy(p, testlib_showerror_macro);
-  p = __stpcpy(p, "(");
-  p = __stpcpy(p, wantcode);
-  p = __stpcpy(p, ", ");
-  p = __stpcpy(p, gotcode);
+  __getpid();
+  __getpid();
+  __printf("%serror%s:%s%s:%d%s: %s(%s)\n"
+           "\t%s(%s, %s)\n",
+           RED2, UNBOLD, BLUE1, testlib_showerror_file, line, RESET,
+           testlib_showerror_func, g_fixturename, testlib_showerror_macro,
+           wantcode, gotcode);
   if (wantcode) {
-    p = __stpcpy(p, ")\n\t\tneed ");
-    p = __stpcpy(p, FREED_want);
-    p = __stpcpy(p, " ");
-    p = __stpcpy(p, testlib_showerror_symbol);
-    p = __stpcpy(p, "\n\t\t got ");
-    p = __stpcpy(p, FREED_got);
-    p = __stpcpy(p, "\n");
+    __printf("\t\tneed %s %s\n"
+             "\t\t got %s\n",
+             FREED_want, testlib_showerror_symbol, FREED_got);
   } else {
-    p = __stpcpy(p, ")\n\t\t→ ");
-    p = __stpcpy(p, testlib_showerror_symbol);
-    p = __stpcpy(p, FREED_want);
-    p = __stpcpy(p, "\n");
+    __printf("\t\t→ %s%s\n", testlib_showerror_symbol, FREED_want);
   }
   if (!isempty(fmt)) {
-    *p++ = '\t';
+    __printf("\t");
     va_start(va, fmt);
-    p += vsprintf(p, fmt, va);
+    __vprintf(fmt, va);
     va_end(va);
-    *p++ = '\n';
+    __printf("\n");
   }
   __stpcpy(hostname, "unknown");
   gethostname(hostname, sizeof(hostname));
-  p = __stpcpy(p, "\t");
-  p = __stpcpy(p, SUBTLE);
-  p = __stpcpy(p, strerror(e));
-  p = __stpcpy(p, RESET);
-  p = __stpcpy(p, "\n\t");
-  p = __stpcpy(p, SUBTLE);
-  p = __stpcpy(p, program_invocation_name);
-  p = __stpcpy(p, " @ ");
-  p = __stpcpy(p, hostname);
-  p = __stpcpy(p, RESET);
-  p = __stpcpy(p, "\n");
-  __write(__fatalbuf, p - __fatalbuf);
+  __printf("\t%s%s%s\n"
+           "\t%s%s @ %s%s\n",
+           SUBTLE, strerror(e), RESET, SUBTLE, program_invocation_name,
+           hostname, RESET);
   free_s(&FREED_want);
   free_s(&FREED_got);
   ++g_testlib_failed;

libc/testlib/testmain.c

@@ -103,5 +103,5 @@ noasan int main(int argc, char *argv[]) {
   } else if (!g_testlib_failed) {
     testlib_checkformemoryleaks();
   }
-  _Exit(min(255, g_testlib_failed));
+  exit(min(255, g_testlib_failed));
 }