Make improvements

- Add GetCpuCount() API to redbean
- Add unix.gmtime() API to redbean
- Add unix.readlink() API to redbean
- Add unix.localtime() API to redbean
- Perfect the new redbean UNIX module APIs
- Integrate with Linux clock_gettime() vDSO
- Run Lua garbage collector when malloc() fails
- Fix another regression quirk with linenoise repl
- Fix GetProgramExecutableName() for systemwide installs
- Fix a build flake with test/libc/mem/test.mk SRCS list

test/libc/calls/access_test.c

@@ -72,5 +72,5 @@ TEST(access, testRequestWriteOnReadOnly_returnsEaccess) {
 }
 
 TEST(access, runThisExecutable) {
-  ASSERT_SYS(0, 0, access(program_executable_name, R_OK | X_OK));
+  ASSERT_SYS(0, 0, access(GetProgramExecutableName(), R_OK | X_OK));
 }

test/libc/calls/clock_gettime_test.c

@@ -0,0 +1,29 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Copyright 2022 Justine Alexandra Roberts Tunney                              │
+│                                                                              │
+│ Permission to use, copy, modify, and/or distribute this software for         │
+│ any purpose with or without fee is hereby granted, provided that the         │
+│ above copyright notice and this permission notice appear in all copies.      │
+│                                                                              │
+│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL                │
+│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED                │
+│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE             │
+│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL         │
+│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR        │
+│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER               │
+│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR             │
+│ PERFORMANCE OF THIS SOFTWARE.                                                │
+╚─────────────────────────────────────────────────────────────────────────────*/
+#include "libc/calls/calls.h"
+#include "libc/calls/struct/timespec.h"
+#include "libc/sysv/consts/clock.h"
+#include "libc/testlib/ezbench.h"
+#include "libc/testlib/testlib.h"
+
+BENCH(clock_gettime, bench) {
+  struct timespec ts;
+  EZBENCH2("nowl", donothing, nowl());
+  EZBENCH2("clock_gettime", donothing, clock_gettime(CLOCK_REALTIME, &ts));
+}

test/libc/calls/dup_test.c

@@ -51,8 +51,8 @@ TEST(dup, clearsCloexecFlag) {
   ASSERT_NE(-1, (ws = xspawn(0)));
   if (ws == -2) {
     dup2(3, 0);
-    execv(program_executable_name,
-          (char *const[]){program_executable_name, "boop", 0});
+    execv(GetProgramExecutableName(),
+          (char *const[]){GetProgramExecutableName(), "boop", 0});
     _exit(127);
   }
   ASSERT_EQ(72, WEXITSTATUS(ws));

test/libc/log/backtrace_test.c

@@ -177,8 +177,8 @@ TEST(ShowCrashReports, testMemoryLeakCrash) {
   if (!pid) {
     dup2(fds[1], 1);
     dup2(fds[1], 2);
-    execv(program_executable_name,
-          (char *const[]){program_executable_name, "6", 0});
+    execv(GetProgramExecutableName(),
+          (char *const[]){GetProgramExecutableName(), "6", 0});
     _exit(127);
   }
   close(fds[1]);
@@ -255,8 +255,8 @@ TEST(ShowCrashReports, testStackOverrunCrash) {
   if (!pid) {
     dup2(fds[1], 1);
     dup2(fds[1], 2);
-    execv(program_executable_name,
-          (char *const[]){program_executable_name, "5", 0});
+    execv(GetProgramExecutableName(),
+          (char *const[]){GetProgramExecutableName(), "5", 0});
     _exit(127);
   }
   close(fds[1]);
@@ -364,8 +364,8 @@ TEST(ShowCrashReports, testDivideByZero) {
   if (!pid) {
     dup2(fds[1], 1);
     dup2(fds[1], 2);
-    execv(program_executable_name,
-          (char *const[]){program_executable_name, "1", 0});
+    execv(GetProgramExecutableName(),
+          (char *const[]){GetProgramExecutableName(), "1", 0});
     _exit(127);
   }
   close(fds[1]);
@@ -486,8 +486,8 @@ TEST(ShowCrashReports, testBssOverrunCrash) {
   if (!pid) {
     dup2(fds[1], 1);
     dup2(fds[1], 2);
-    execv(program_executable_name,
-          (char *const[]){program_executable_name, "2", 0});
+    execv(GetProgramExecutableName(),
+          (char *const[]){GetProgramExecutableName(), "2", 0});
     _exit(127);
   }
   close(fds[1]);
@@ -565,8 +565,8 @@ TEST(ShowCrashReports, testNpeCrash) {
   if (!pid) {
     dup2(fds[1], 1);
     dup2(fds[1], 2);
-    execv(program_executable_name,
-          (char *const[]){program_executable_name, "7", 0});
+    execv(GetProgramExecutableName(),
+          (char *const[]){GetProgramExecutableName(), "7", 0});
     _exit(127);
   }
   close(fds[1]);
@@ -625,8 +625,8 @@ TEST(ShowCrashReports, testDataOverrunCrash) {
   if (!pid) {
     dup2(fds[1], 1);
     dup2(fds[1], 2);
-    execv(program_executable_name,
-          (char *const[]){program_executable_name, "4", 0});
+    execv(GetProgramExecutableName(),
+          (char *const[]){GetProgramExecutableName(), "4", 0});
     _exit(127);
   }
   close(fds[1]);
@@ -680,8 +680,8 @@ TEST(ShowCrashReports, testNpeCrashAfterFinalize) {
   if (!pid) {
     dup2(fds[1], 1);
     dup2(fds[1], 2);
-    execv(program_executable_name,
-          (char *const[]){program_executable_name, "8", 0});
+    execv(GetProgramExecutableName(),
+          (char *const[]){GetProgramExecutableName(), "8", 0});
     _exit(127);
   }
   close(fds[1]);

test/libc/mem/test.mk

@@ -4,6 +4,7 @@
 PKGS += TEST_LIBC_MEM
 
 TEST_LIBC_MEM_FILES := $(wildcard test/libc/mem/*)
+TEST_LIBC_MEM_SRCS = $(TEST_LIBC_MEM_SRCS_C) $(TEST_LIBC_MEM_SRCS_CC)
 TEST_LIBC_MEM_SRCS_C = $(filter %_test.c,$(TEST_LIBC_MEM_FILES))
 TEST_LIBC_MEM_SRCS_CC = $(filter %_test.cc,$(TEST_LIBC_MEM_FILES))
 
@@ -12,7 +13,7 @@ TEST_LIBC_MEM_OBJS =						\
 	$(TEST_LIBC_MEM_SRCS_CC:%.cc=o/$(MODE)/%.o)
 
 TEST_LIBC_MEM_COMS =						\
-	$(TEST_LIBC_MEM_SRCS_C:%.c=o/$(MODE)/%.com)	\
+	$(TEST_LIBC_MEM_SRCS_C:%.c=o/$(MODE)/%.com)		\
 	$(TEST_LIBC_MEM_SRCS_CC:%.cc=o/$(MODE)/%.com)
 
 TEST_LIBC_MEM_BINS =						\
@@ -20,7 +21,7 @@ TEST_LIBC_MEM_BINS =						\
 	$(TEST_LIBC_MEM_COMS:%=%.dbg)
 
 TEST_LIBC_MEM_TESTS =						\
-	$(TEST_LIBC_MEM_SRCS_C:%.c=o/$(MODE)/%.com.ok)	\
+	$(TEST_LIBC_MEM_SRCS_C:%.c=o/$(MODE)/%.com.ok)		\
 	$(TEST_LIBC_MEM_SRCS_CC:%.cc=o/$(MODE)/%.com.ok)
 
 TEST_LIBC_MEM_CHECKS =						\