Introduce CPUID detection for Blink

libc/calls/pledge.c

@@ -239,7 +239,7 @@
 int pledge(const char *promises, const char *execpromises) {
   int e, rc;
   unsigned long ipromises, iexecpromises;
-  if (IsGenuineCosmo()) {
+  if (IsGenuineCosmo() || IsGenuineBlink()) {
     rc = 0;  // blink doesn't support seccomp
   } else if (!ParsePromises(promises, &ipromises) &&
              !ParsePromises(execpromises, &iexecpromises)) {

libc/calls/unveil.c

@@ -354,7 +354,7 @@ int sys_unveil_linux(const char *path, const char *permissions) {
 int unveil(const char *path, const char *permissions) {
   int e, rc;
   e = errno;
-  if (IsGenuineCosmo()) {
+  if (IsGenuineCosmo() || IsGenuineBlink()) {
     rc = 0;  // blink doesn't support landlock
   } else if (IsLinux()) {
     rc = sys_unveil_linux(path, permissions);

libc/intrin/isdebuggerpresent.c

@@ -43,6 +43,7 @@ int IsDebuggerPresent(bool force) {
   int e, fd, res;
   char *p, buf[1024];
   if (!force && IsGenuineCosmo()) return 0;
+  if (!force && IsGenuineBlink()) return 0;
   if (!force && __getenv(environ, "HEISENDEBUG")) return 0;
   if (IsWindows()) return IsBeingDebugged();
   if (__isworker) return false;

libc/log/attachdebugger.c

@@ -57,7 +57,8 @@ relegated int(AttachDebugger)(intptr_t continuetoaddr) {
   char pidstr[11], breakcmd[40];
   const char *se, *elf, *gdb, *rewind, *layout;
   __restore_tty();
-  if (IsGenuineCosmo() || !(gdb = GetGdbPath()) || !isatty(0) || !isatty(1) ||
+  if (IsGenuineCosmo() || IsGenuineBlink() || !(gdb = GetGdbPath()) ||
+      !isatty(0) || !isatty(1) ||
       (ttyfd = open(_PATH_TTY, O_RDWR | O_CLOEXEC)) == -1) {
     return -1;
   }

libc/nexgen32e/vendor.internal.h

@@ -18,5 +18,10 @@
    kCpuids[KCPUIDS_0H][KCPUIDS_EDX] == 0x43656e69 /* ineC */ && \
    kCpuids[KCPUIDS_0H][KCPUIDS_ECX] == 0x6f6d736f /* osmo */)
 
+#define IsGenuineBlink()                                        \
+  (kCpuids[KCPUIDS_0H][KCPUIDS_EBX] == 0x756e6547 /* Genu */ && \
+   kCpuids[KCPUIDS_0H][KCPUIDS_EDX] == 0x42656e69 /* ineB */ && \
+   kCpuids[KCPUIDS_0H][KCPUIDS_ECX] == 0x6b6e696c /* link */)
+
 #endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
 #endif /* COSMOPOLITAN_LIBC_NEXGEN32E_VENDOR_H_ */

libc/thread/sem_getvalue.c

@@ -22,7 +22,7 @@
 #include "libc/thread/semaphore.h"
 
 /**
- * Destroys unnamed semaphore.
+ * Returns semaphore value.
  *
  * @param sem was created by sem_init()
  * @param sval receives output value

test/libc/stdio/dtoa_test.c

@@ -137,7 +137,9 @@ static const struct {
 };
 
 TEST(printf, longdouble) {
-  if (IsGenuineCosmo()) return;  // TODO(jart): long double precision in blink
+  if (IsGenuineCosmo() || IsGenuineBlink()) {
+    return;  // TODO(jart): long double precision in blink
+  }
   int i;
   for (i = 0; i < ARRAYLEN(Vx); ++i) {
     ++g_testlib_ran;

test/libc/thread/pthread_create_test.c

@@ -99,7 +99,6 @@ static void *CheckSchedule(void *arg) {
 TEST(pthread_create, scheduling) {
   pthread_t id;
   pthread_attr_t attr;
-  if (IsGenuineCosmo()) return;  // TODO(jart): blink
   struct sched_param pri = {sched_get_priority_min(SCHED_OTHER)};
   ASSERT_EQ(0, pthread_attr_init(&attr));
   ASSERT_EQ(0, pthread_attr_setinheritsched(&attr, PTHREAD_EXPLICIT_SCHED));

third_party/nsync/futex.c

@@ -66,10 +66,6 @@ __attribute__((__constructor__)) static void nsync_futex_init_ (void) {
 
 	FUTEX_WAIT_ = FUTEX_WAIT;
 
-	if (IsGenuineCosmo ()) {
-		return;
-	}
-
 	if (IsWindows ()) {
 		futex_is_supported = true;
 		return;

tool/build/lib/syscall.c

@@ -150,7 +150,7 @@ static int GetAfd(struct Machine *m, int fd) {
 }
 
 static const char *GetSimulated(void) {
-  if (IsGenuineCosmo()) {
+  if (IsGenuineCosmo() || IsGenuineBlink()) {
     return " SIMULATED";
   } else {
     return "";

tool/build/lib/throw.c

@@ -18,8 +18,8 @@
 ╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/log/check.h"
 #include "libc/log/log.h"
-#include "libc/nexgen32e/vendor.internal.h"
 #include "libc/mem/gc.internal.h"
+#include "libc/nexgen32e/vendor.internal.h"
 #include "libc/runtime/runtime.h"
 #include "libc/str/str.h"
 #include "tool/build/lib/address.h"
@@ -47,7 +47,8 @@ void ThrowSegmentationFault(struct Machine *m, int64_t va) {
   WARNF("%s%s ADDR %012lx IP %012lx AX %lx CX %lx DX %lx BX %lx SP %lx "
         "BP %lx SI %lx DI %lx R8 %lx R9 %lx R10 %lx R11 %lx R12 %lx R13 %lx "
         "R14 %lx R15 %lx",
-        "SEGMENTATION FAULT", IsGenuineCosmo() ? " SIMULATED" : "", va, m->ip,
+        "SEGMENTATION FAULT",
+        IsGenuineCosmo() || IsGenuineBlink() ? " SIMULATED" : "", va, m->ip,
         Read64(m->ax), Read64(m->cx), Read64(m->dx), Read64(m->bx),
         Read64(m->sp), Read64(m->bp), Read64(m->si), Read64(m->di),
         Read64(m->r8), Read64(m->r9), Read64(m->r10), Read64(m->r11),

tool/net/redbean.c

@@ -7258,7 +7258,7 @@ static void GetOpts(int argc, char *argv[]) {
   int opt;
   bool storeasset = false;
   // only generate ecp cert under blinkenlights (rsa is slow)
-  norsagen = IsGenuineCosmo();
+  norsagen = IsGenuineCosmo() || IsGenuineBlink();
   while ((opt = getopt(argc, argv, GETOPTS)) != -1) {
     switch (opt) {
       CASE('S', ++sandboxed);