diff --git a/.vscode/c_cpp_properties.json b/.vscode/c_cpp_properties.json
index 6d860804c..0fcce52ae 100644
--- a/.vscode/c_cpp_properties.json
+++ b/.vscode/c_cpp_properties.json
@@ -43,7 +43,6 @@
 				"forcealignargpointer=",
 				"noasan=",
 				"noubsan=",
-				"testonly=",
 				"donothing=",
 				"nosideeffect=",
 				"unreachable=",,
diff --git a/libc/integral/c.inc b/libc/integral/c.inc
index ba410d7fe..4c1c96d00 100644
--- a/libc/integral/c.inc
+++ b/libc/integral/c.inc
@@ -602,7 +602,6 @@ typedef struct {
   } while (0)
 
 #ifndef __STRICT_ANSI__
-#define testonly    dontinline _Section(".test")
 #define textstartup _Section(".text.startup") noinstrument
 #define textexit    _Section(".text.exit") noinstrument
 #define textreal    _Section(".text.real")
@@ -610,7 +609,6 @@ typedef struct {
 #define textwindows _Section(".text.windows")
 #define antiquity   _Section(".text.antiquity")
 #else
-#define testonly
 #define textstartup
 #define textexit
 #define textreal
diff --git a/libc/testlib/almostequallongdouble.c b/libc/testlib/almostequallongdouble.c
index cd299f279..7f20f0c5b 100644
--- a/libc/testlib/almostequallongdouble.c
+++ b/libc/testlib/almostequallongdouble.c
@@ -21,7 +21,7 @@
 
 #define EPSILON 0.00000001L
 
-testonly bool testlib_almostequallongdouble(long double x, long double y) {
+bool testlib_almostequallongdouble(long double x, long double y) {
   /* TODO(jart): This algorithm has to be binary. */
   if (isnan(x) || isnan(y)) return false;
   return fabsl(x - y) <= EPSILON;
diff --git a/libc/testlib/binequals.c b/libc/testlib/binequals.c
index 43b5d0b73..35fab15b0 100644
--- a/libc/testlib/binequals.c
+++ b/libc/testlib/binequals.c
@@ -26,8 +26,7 @@
  *
  * @see libc/nexgen32e/kCp437.S
  */
-testonly bool testlib_binequals(const char16_t *want, const void *got,
-                                size_t n) {
+bool testlib_binequals(const char16_t *want, const void *got, size_t n) {
   size_t i;
   const unsigned char *p = (const unsigned char *)got;
   if (!got) return false;
diff --git a/libc/testlib/comborunner.c b/libc/testlib/comborunner.c
index d0d82bea7..9de2fd06b 100644
--- a/libc/testlib/comborunner.c
+++ b/libc/testlib/comborunner.c
@@ -16,8 +16,8 @@
 │ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR             │
 │ PERFORMANCE OF THIS SOFTWARE.                                                │
 ╚─────────────────────────────────────────────────────────────────────────────*/
-#include "libc/intrin/safemacros.internal.h"
 #include "libc/fmt/fmt.h"
+#include "libc/intrin/safemacros.internal.h"
 #include "libc/mem/mem.h"
 #include "libc/str/str.h"
 #include "libc/testlib/testlib.h"
@@ -33,7 +33,7 @@ struct ComboProduct {
   struct ComboGroup groups[];
 };
 
-mallocesque testonly struct ComboProduct *testlib_setupcomboproduct(
+mallocesque struct ComboProduct *testlib_setupcomboproduct(
     const struct TestFixture *start, const struct TestFixture *end) {
   unsigned i, j, entrycount;
   struct ComboProduct *product;
@@ -54,8 +54,8 @@ mallocesque testonly struct ComboProduct *testlib_setupcomboproduct(
   return product;
 }
 
-static testonly void testlib_describecombo(struct ComboProduct *product,
-                                           const struct TestFixture *combos) {
+static void testlib_describecombo(struct ComboProduct *product,
+                                  const struct TestFixture *combos) {
   char *p = &g_fixturename[0];
   char *pe = p + sizeof(g_fixturename);
   for (unsigned i = 0; i < product->n && p < pe; ++i) {
@@ -66,10 +66,9 @@ static testonly void testlib_describecombo(struct ComboProduct *product,
   }
 }
 
-static testonly void testlib_callcombos(struct ComboProduct *product,
-                                        const struct TestFixture *combos,
-                                        testfn_t *test_start,
-                                        testfn_t *test_end) {
+static void testlib_callcombos(struct ComboProduct *product,
+                               const struct TestFixture *combos,
+                               testfn_t *test_start, testfn_t *test_end) {
   for (;;) {
     testlib_describecombo(product, combos);
     for (unsigned i = 0; i < product->n; ++i) {
@@ -89,9 +88,9 @@ static testonly void testlib_callcombos(struct ComboProduct *product,
  * @see ape/ape.lds
  * @see libc/testlib/testlib.h
  */
-testonly void testlib_runcombos(testfn_t *test_start, testfn_t *test_end,
-                                const struct TestFixture *combo_start,
-                                const struct TestFixture *combo_end) {
+void testlib_runcombos(testfn_t *test_start, testfn_t *test_end,
+                       const struct TestFixture *combo_start,
+                       const struct TestFixture *combo_end) {
   struct ComboProduct *product;
   product = testlib_setupcomboproduct(combo_start, combo_end);
   testlib_callcombos(product, combo_start, test_start, test_end);
diff --git a/libc/testlib/contains.c b/libc/testlib/contains.c
index f8978685c..8f0604df2 100644
--- a/libc/testlib/contains.c
+++ b/libc/testlib/contains.c
@@ -19,7 +19,7 @@
 #include "libc/str/str.h"
 #include "libc/testlib/testlib.h"
 
-testonly bool testlib_contains(size_t cw, const void *s, const void *needle) {
+bool testlib_contains(size_t cw, const void *s, const void *needle) {
   if (s == needle) return true;
   if (!s || !needle) return false;
   return sizeof(cw) == sizeof(char16_t) ? !!strstr16(s, needle)
diff --git a/libc/testlib/endswith.c b/libc/testlib/endswith.c
index 3eb6fe5b4..23168083b 100644
--- a/libc/testlib/endswith.c
+++ b/libc/testlib/endswith.c
@@ -19,10 +19,10 @@
 #include "libc/str/str.h"
 #include "libc/testlib/testlib.h"
 
-testonly bool testlib_endswith(size_t cw, const void *s, const void *suffix) {
+bool testlib_endswith(size_t cw, const void *s, const void *suffix) {
   if (s == suffix) return true;
   if (!s || !suffix) return false;
-  return cw == sizeof(wchar_t) ? wcsendswith(s, suffix)
-                               : cw == sizeof(char16_t) ? endswith16(s, suffix)
-                                                        : endswith(s, suffix);
+  return cw == sizeof(wchar_t)    ? wcsendswith(s, suffix)
+         : cw == sizeof(char16_t) ? endswith16(s, suffix)
+                                  : endswith(s, suffix);
 }
diff --git a/libc/testlib/fixturerunner.c b/libc/testlib/fixturerunner.c
index 5d63975fd..d61d3e598 100644
--- a/libc/testlib/fixturerunner.c
+++ b/libc/testlib/fixturerunner.c
@@ -21,8 +21,8 @@
 #include "libc/sysv/consts/prot.h"
 #include "libc/testlib/testlib.h"
 
-testonly int testlib_countfixtures(const struct TestFixture *start,
-                                   const struct TestFixture *end) {
+int testlib_countfixtures(const struct TestFixture *start,
+                          const struct TestFixture *end) {
   return ((intptr_t)end - (intptr_t)start) / sizeof(struct TestFixture);
 }
 
@@ -31,9 +31,9 @@ testonly int testlib_countfixtures(const struct TestFixture *start,
  * @see ape/ape.lds
  * @see libc/testlib/testlib.h
  */
-testonly void testlib_runfixtures(testfn_t *test_start, testfn_t *test_end,
-                                  const struct TestFixture *fixture_start,
-                                  const struct TestFixture *fixture_end) {
+void testlib_runfixtures(testfn_t *test_start, testfn_t *test_end,
+                         const struct TestFixture *fixture_start,
+                         const struct TestFixture *fixture_end) {
   unsigned i, count;
   count = testlib_countfixtures(fixture_start, fixture_end);
   for (i = 0; i < count && !g_testlib_failed; ++i) {
diff --git a/libc/testlib/formatbinaryasglyphs.c b/libc/testlib/formatbinaryasglyphs.c
index 78889757d..c6100ff87 100644
--- a/libc/testlib/formatbinaryasglyphs.c
+++ b/libc/testlib/formatbinaryasglyphs.c
@@ -20,9 +20,8 @@
 #include "libc/testlib/testlib.h"
 #include "libc/x/x.h"
 
-testonly void testlib_formatbinaryasglyphs(const char16_t *want,
-                                           const void *got, size_t n,
-                                           char **out_v1, char **out_v2) {
+void testlib_formatbinaryasglyphs(const char16_t *want, const void *got,
+                                  size_t n, char **out_v1, char **out_v2) {
   if (n == -1ul) n = strlen16(want);
   *out_v1 = xasprintf("%`#.*hs", n, want);
   *out_v2 = xasprintf(" %`'#.*s", n, got);
diff --git a/libc/testlib/formatbinaryashex.c b/libc/testlib/formatbinaryashex.c
index 34dca18ce..43cd20930 100644
--- a/libc/testlib/formatbinaryashex.c
+++ b/libc/testlib/formatbinaryashex.c
@@ -21,9 +21,8 @@
 #include "libc/testlib/testlib.h"
 #include "libc/x/x.h"
 
-testonly void testlib_formatbinaryashex(const char *want, const void *got,
-                                        size_t n, char **out_v1,
-                                        char **out_v2) {
+void testlib_formatbinaryashex(const char *want, const void *got, size_t n,
+                               char **out_v1, char **out_v2) {
   size_t i;
   uint8_t b;
   char *gothex;
diff --git a/libc/testlib/formatfloat.c b/libc/testlib/formatfloat.c
index 0056a8ded..c5c028f30 100644
--- a/libc/testlib/formatfloat.c
+++ b/libc/testlib/formatfloat.c
@@ -22,6 +22,6 @@
 #include "libc/x/x.h"
 #include "third_party/gdtoa/gdtoa.h"
 
-testonly char *testlib_formatfloat(long double x) {
+char *testlib_formatfloat(long double x) {
   return xasprintf("%.15Lg", x);
 }
diff --git a/libc/testlib/formatint.c b/libc/testlib/formatint.c
index b2e84a637..5aca7d16f 100644
--- a/libc/testlib/formatint.c
+++ b/libc/testlib/formatint.c
@@ -16,8 +16,8 @@
 │ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR             │
 │ PERFORMANCE OF THIS SOFTWARE.                                                │
 ╚─────────────────────────────────────────────────────────────────────────────*/
-#include "libc/intrin/bits.h"
 #include "libc/fmt/fmt.h"
+#include "libc/intrin/bits.h"
 #include "libc/macros.internal.h"
 #include "libc/mem/mem.h"
 #include "libc/testlib/testlib.h"
@@ -25,7 +25,7 @@
 static size_t sbufi_;
 static char sbufs_[2][256];
 
-dontdiscard testonly char *testlib_formatint(intptr_t x) {
+dontdiscard char *testlib_formatint(intptr_t x) {
   char *str = sbufi_ < ARRAYLEN(sbufs_) ? sbufs_[sbufi_++] : malloc(256);
   char *p = str;
   p += sprintf(p, "%ld\t(or %#lx", x, x);
diff --git a/libc/testlib/formatrange.c b/libc/testlib/formatrange.c
index dd7e80b4c..468abaacd 100644
--- a/libc/testlib/formatrange.c
+++ b/libc/testlib/formatrange.c
@@ -19,6 +19,6 @@
 #include "libc/testlib/testlib.h"
 #include "libc/x/x.h"
 
-dontdiscard testonly char *testlib_formatrange(intptr_t beg, intptr_t end) {
+dontdiscard char *testlib_formatrange(intptr_t beg, intptr_t end) {
   return xasprintf("[%#ld,%#ld]", beg, end);
 }
diff --git a/libc/testlib/formatstr.c b/libc/testlib/formatstr.c
index 13313a03c..a836e6cd7 100644
--- a/libc/testlib/formatstr.c
+++ b/libc/testlib/formatstr.c
@@ -25,7 +25,7 @@
 /**
  * Turns string into code.
  */
-dontdiscard testonly char *testlib_formatstr(size_t cw, const void *s, int n) {
+dontdiscard char *testlib_formatstr(size_t cw, const void *s, int n) {
   if (s) {
     switch (cw) {
       case 1:
diff --git a/libc/testlib/hexequals.c b/libc/testlib/hexequals.c
index 2306a38a7..a7b2421ae 100644
--- a/libc/testlib/hexequals.c
+++ b/libc/testlib/hexequals.c
@@ -26,7 +26,7 @@
  *
  * @see unhexstr()
  */
-testonly bool testlib_hexequals(const char *want, const void *got, size_t n) {
+bool testlib_hexequals(const char *want, const void *got, size_t n) {
   size_t i;
   const unsigned char *p = (const unsigned char *)got;
   if (!got) return false;
diff --git a/libc/testlib/runner.c b/libc/testlib/runner.c
index e21ef413c..a9091c9dd 100644
--- a/libc/testlib/runner.c
+++ b/libc/testlib/runner.c
@@ -28,7 +28,7 @@
  * @see libc/testlib/testlib.h
  * @see ape/ape.lds
  */
-testonly void testlib_runalltests(void) {
+void testlib_runalltests(void) {
   if ((intptr_t)__testcase_end > (intptr_t)__testcase_start) {
     if (testlib_countfixtures(__combo_start, __combo_end)) {
       testlib_runcombos(__testcase_start, __testcase_end, __combo_start,
diff --git a/libc/testlib/showerror.c b/libc/testlib/showerror.c
index bb9efc127..546665e25 100644
--- a/libc/testlib/showerror.c
+++ b/libc/testlib/showerror.c
@@ -16,12 +16,12 @@
 │ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR             │
 │ PERFORMANCE OF THIS SOFTWARE.                                                │
 ╚─────────────────────────────────────────────────────────────────────────────*/
-#include "libc/intrin/atomic.h"
-#include "libc/intrin/safemacros.internal.h"
 #include "libc/calls/calls.h"
 #include "libc/errno.h"
 #include "libc/fmt/fmt.h"
+#include "libc/intrin/atomic.h"
 #include "libc/intrin/kprintf.h"
+#include "libc/intrin/safemacros.internal.h"
 #include "libc/log/color.internal.h"
 #include "libc/log/internal.h"
 #include "libc/log/libfatal.internal.h"
@@ -35,9 +35,9 @@ const char *testlib_showerror_isfatal;
 const char *testlib_showerror_macro;
 const char *testlib_showerror_symbol;
 
-testonly void testlib_showerror(const char *file, int line, const char *func,
-                                const char *method, const char *symbol,
-                                const char *code, char *v1, char *v2) {
+void testlib_showerror(const char *file, int line, const char *func,
+                       const char *method, const char *symbol, const char *code,
+                       char *v1, char *v2) {
   char *p;
   char hostname[128];
   __stpcpy(hostname, "unknown");
@@ -56,9 +56,9 @@ testonly void testlib_showerror(const char *file, int line, const char *func,
 }
 
 /* TODO(jart): Pay off tech debt re duplication */
-testonly void testlib_showerror_(int line, const char *wantcode,
-                                 const char *gotcode, char *FREED_want,
-                                 char *FREED_got, const char *fmt, ...) {
+void testlib_showerror_(int line, const char *wantcode, const char *gotcode,
+                        char *FREED_want, char *FREED_got, const char *fmt,
+                        ...) {
   int e;
   va_list va;
   char hostname[128];
diff --git a/libc/testlib/startswith.c b/libc/testlib/startswith.c
index 79cf3e9eb..d1a9dfa5a 100644
--- a/libc/testlib/startswith.c
+++ b/libc/testlib/startswith.c
@@ -19,11 +19,10 @@
 #include "libc/str/str.h"
 #include "libc/testlib/testlib.h"
 
-testonly bool testlib_startswith(size_t cw, const void *s, const void *prefix) {
+bool testlib_startswith(size_t cw, const void *s, const void *prefix) {
   if (s == prefix) return true;
   if (!s || !prefix) return false;
-  return cw == sizeof(wchar_t)
-             ? wcsstartswith(s, prefix)
-             : cw == sizeof(char16_t) ? startswith16(s, prefix)
-                                      : startswith(s, prefix);
+  return cw == sizeof(wchar_t)    ? wcsstartswith(s, prefix)
+         : cw == sizeof(char16_t) ? startswith16(s, prefix)
+                                  : startswith(s, prefix);
 }
diff --git a/libc/testlib/strcaseequals.c b/libc/testlib/strcaseequals.c
index 1b069fa6f..e6c43b0ba 100644
--- a/libc/testlib/strcaseequals.c
+++ b/libc/testlib/strcaseequals.c
@@ -20,16 +20,15 @@
 #include "libc/str/str.h"
 #include "libc/testlib/testlib.h"
 
-testonly bool testlib_strcaseequals(size_t cw, const void *s1, const void *s2) {
+bool testlib_strcaseequals(size_t cw, const void *s1, const void *s2) {
   return testlib_strncaseequals(cw, s1, s2, SIZE_MAX);
 }
 
-testonly bool testlib_strncaseequals(size_t cw, const void *s1, const void *s2,
-                                     size_t n) {
+bool testlib_strncaseequals(size_t cw, const void *s1, const void *s2,
+                            size_t n) {
   if (s1 == s2) return true;
   if (!s1 || !s2) return false;
-  return (cw == sizeof(wchar_t)
-              ? wcsncasecmp(s1, s2, n)
-              : cw == sizeof(char16_t) ? strncasecmp16(s1, s2, n)
-                                       : strncasecmp(s1, s2, n)) == 0;
+  return (cw == sizeof(wchar_t)    ? wcsncasecmp(s1, s2, n)
+          : cw == sizeof(char16_t) ? strncasecmp16(s1, s2, n)
+                                   : strncasecmp(s1, s2, n)) == 0;
 }
diff --git a/libc/testlib/strequals.c b/libc/testlib/strequals.c
index ef46f7c88..68acd5ed8 100644
--- a/libc/testlib/strequals.c
+++ b/libc/testlib/strequals.c
@@ -20,16 +20,14 @@
 #include "libc/str/str.h"
 #include "libc/testlib/testlib.h"
 
-testonly bool testlib_strequals(size_t cw, const void *s1, const void *s2) {
+bool testlib_strequals(size_t cw, const void *s1, const void *s2) {
   return testlib_strnequals(cw, s1, s2, SIZE_MAX);
 }
 
-testonly bool testlib_strnequals(size_t cw, const void *s1, const void *s2,
-                                 size_t n) {
+bool testlib_strnequals(size_t cw, const void *s1, const void *s2, size_t n) {
   if (s1 == s2) return true;
   if (!s1 || !s2) return false;
-  return (cw == sizeof(wchar_t)
-              ? wcsncmp(s1, s2, n)
-              : cw == sizeof(char16_t) ? strncmp16(s1, s2, n)
-                                       : strncmp(s1, s2, n)) == 0;
+  return (cw == sizeof(wchar_t)    ? wcsncmp(s1, s2, n)
+          : cw == sizeof(char16_t) ? strncmp16(s1, s2, n)
+                                   : strncmp(s1, s2, n)) == 0;
 }
diff --git a/libc/testlib/testlib.h b/libc/testlib/testlib.h
index 3e2fd0004..bef3f434b 100644
--- a/libc/testlib/testlib.h
+++ b/libc/testlib/testlib.h
@@ -72,7 +72,7 @@ COSMOPOLITAN_C_START_
 #define __TEST_PROTOTYPE(S, N, A, K)               \
   void S##_##N(void);                              \
   testfn_t S##_##N##_ptr[] A(S##_##N) = {S##_##N}; \
-  testonly K void S##_##N(void)
+  K void S##_##N(void)
 
 #define __TEST_SECTION(NAME, CONTENT) \
   ".section " NAME "\n" CONTENT "\n\t.previous\n"
@@ -89,7 +89,7 @@ COSMOPOLITAN_C_START_
                     "\t.quad\t" STRINGIFY(GROUP##_##ENTRY)) \
           __ROSTR("1:\t.asciz\t" STRINGIFY(#GROUP))         \
               __ROSTR("2:\t.asciz\t" STRINGIFY(#ENTRY)));   \
-  testonly void GROUP##_##ENTRY(void)
+  void GROUP##_##ENTRY(void)
 
 /**
  * Enables setup and teardown of test directories.
diff --git a/libc/testlib/testrunner.c b/libc/testlib/testrunner.c
index 8a144a491..d1a16a99b 100644
--- a/libc/testlib/testrunner.c
+++ b/libc/testlib/testrunner.c
@@ -193,8 +193,7 @@ static void CheckForZombies(void) {
 /**
  * Runs all test case functions in sorted order.
  */
-testonly void testlib_runtestcases(testfn_t *start, testfn_t *end,
-                                   testfn_t warmup) {
+void testlib_runtestcases(testfn_t *start, testfn_t *end, testfn_t warmup) {
   /*
    * getpid() calls are inserted to help visually see tests in traces
    * which can be performed on Linux, FreeBSD, OpenBSD, and XNU:
diff --git a/test/libc/calls/signal_test.c b/test/libc/calls/signal_test.c
index deef09aa7..2b7aaa21d 100644
--- a/test/libc/calls/signal_test.c
+++ b/test/libc/calls/signal_test.c
@@ -26,7 +26,7 @@
 #include "libc/testlib/ezbench.h"
 #include "libc/testlib/testlib.h"
 
-testonly void OnUsr1(int sig) {
+void OnUsr1(int sig) {
   _exit(0);
 }
 
diff --git a/test/libc/fmt/palandprintf_test.c b/test/libc/fmt/palandprintf_test.c
index 9ac2165a0..86563ebcb 100644
--- a/test/libc/fmt/palandprintf_test.c
+++ b/test/libc/fmt/palandprintf_test.c
@@ -24,11 +24,11 @@
 │ OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN    │
 │ THE SOFTWARE.                                                                │
 └─────────────────────────────────────────────────────────────────────────────*/
-#include "libc/intrin/pushpop.h"
-#include "libc/intrin/safemacros.internal.h"
 #include "libc/errno.h"
 #include "libc/fmt/fmt.h"
 #include "libc/fmt/itoa.h"
+#include "libc/intrin/pushpop.h"
+#include "libc/intrin/safemacros.internal.h"
 #include "libc/limits.h"
 #include "libc/math.h"
 #include "libc/mem/mem.h"
@@ -541,14 +541,14 @@ TEST(sprintf, test_snprintf) {
   EXPECT_STREQ("-1", buffer);
 }
 
-testonly void vsnprintf_builder_1(char *buf, ...) {
+void vsnprintf_builder_1(char *buf, ...) {
   va_list args;
   va_start(args, buf);
   vsnprintf(buf, 100U, "%d", args);
   va_end(args);
 }
 
-testonly void vsnprintf_builder_3(char *buf, ...) {
+void vsnprintf_builder_3(char *buf, ...) {
   va_list args;
   va_start(args, buf);
   vsnprintf(buf, 100U, "%d %d %s", args);
diff --git a/test/libc/mem/critbit0_test.c b/test/libc/mem/critbit0_test.c
index 99651324a..b193be932 100644
--- a/test/libc/mem/critbit0_test.c
+++ b/test/libc/mem/critbit0_test.c
@@ -16,8 +16,8 @@
 │ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR             │
 │ PERFORMANCE OF THIS SOFTWARE.                                                │
 ╚─────────────────────────────────────────────────────────────────────────────*/
-#include "libc/mem/critbit0.h"
 #include "libc/intrin/bits.h"
+#include "libc/mem/critbit0.h"
 #include "libc/mem/mem.h"
 #include "libc/runtime/runtime.h"
 #include "libc/str/str.h"
@@ -29,25 +29,25 @@ struct Bog {
   const char *p[];
 };
 
-static testonly dontdiscard struct Bog *NewBog(unsigned n) {
+static dontdiscard struct Bog *NewBog(unsigned n) {
   struct Bog *res = malloc(sizeof(struct Bog) + sizeof(const char *) * n);
   res->i = 0;
   res->n = n;
   return res;
 }
 
-static testonly void ClearBog(struct Bog *bog) {
+static void ClearBog(struct Bog *bog) {
   bog->i = 0;
 }
 
-static testonly void FreeBog(struct Bog **bog) {
+static void FreeBog(struct Bog **bog) {
   free(*bog), *bog = NULL;
 }
 
 static const char *const elems[] = {"a",   "aa",  "aaz", "abz",
                                     "bba", "bbc", "bbd", NULL};
 
-testonly static void MakeTree(struct critbit0 *tree) {
+static void MakeTree(struct critbit0 *tree) {
   memset(tree, 0, sizeof(*tree));
   for (unsigned i = 0; elems[i]; ++i) {
     ASSERT_EQ(true, critbit0_insert(tree, elems[i]));
@@ -84,7 +84,7 @@ TEST(critbit0, testDelete) {
   critbit0_clear(&tree);
 }
 
-static testonly intptr_t allprefixed_cb(const char *elem, void *arg) {
+static intptr_t allprefixed_cb(const char *elem, void *arg) {
   struct Bog *bog = arg;
   ASSERT_LT(bog->i, bog->n);
   bog->p[bog->i++] = elem;
@@ -110,7 +110,7 @@ TEST(critbit0, testAllPrefixed) {
   FreeBog(&a);
 }
 
-static testonly intptr_t allprefixed_cb_halt(const char *elem, void *arg) {
+static intptr_t allprefixed_cb_halt(const char *elem, void *arg) {
   struct Bog *bog = arg;
   ASSERT_LT(bog->i, bog->n);
   bog->p[bog->i++] = elem;
diff --git a/test/libc/str/strcmp_test.c b/test/libc/str/strcmp_test.c
index eb953c56e..f2129fa8b 100644
--- a/test/libc/str/strcmp_test.c
+++ b/test/libc/str/strcmp_test.c
@@ -489,14 +489,14 @@ TEST(wcsncmp, testTwosComplementBane) {
 │ test/libc/str/strcmp_test.c § benchmarks                                 ─╬─│┼
 ╚────────────────────────────────────────────────────────────────────────────│*/
 
-testonly dontinline int strcmp_pure(const char *a, const char *b) {
+dontinline int strcmp_pure(const char *a, const char *b) {
   for (; *a == *b; a++, b++) {
     if (!*a) break;
   }
   return (*a & 0xff) - (*b & 0xff);
 }
 
-testonly dontinline int strcasecmp_pure(const char *a, const char *b) {
+dontinline int strcasecmp_pure(const char *a, const char *b) {
   for (; *a && *b; a++, b++) {
     if (!(*a == *b || tolower(*a & 0xff) == tolower(*b & 0xff))) {
       break;
diff --git a/test/libc/time/strftime_test.c b/test/libc/time/strftime_test.c
index a70ea551d..18684fb0e 100644
--- a/test/libc/time/strftime_test.c
+++ b/test/libc/time/strftime_test.c
@@ -28,7 +28,7 @@ textstartup static void strftime_test_init(void) {
 }
 const void *const strftime_test_ctor[] initarray = {strftime_test_init};
 
-testonly char *FormatTime(const char *fmt, struct tm *tm) {
+char *FormatTime(const char *fmt, struct tm *tm) {
   static char buf[64];
   strftime(buf, sizeof(buf), fmt, tm);
   return &buf[0];
diff --git a/test/libc/xed/x86ild_lib.c b/test/libc/xed/x86ild_lib.c
index 1cd65857c..095bd4dee 100644
--- a/test/libc/xed/x86ild_lib.c
+++ b/test/libc/xed/x86ild_lib.c
@@ -25,7 +25,7 @@
 #include "test/libc/xed/lib.h"
 #include "third_party/xed/x86.h"
 
-testonly dontdiscard uint8_t *unbingx86op(const char16_t *codez) {
+dontdiscard uint8_t *unbingx86op(const char16_t *codez) {
   size_t len;
   len = strlen16(codez);
   return unbingbuf(xmalloc(ROUNDUP(len, 16)), len, codez, 0x90);
@@ -34,7 +34,7 @@ testonly dontdiscard uint8_t *unbingx86op(const char16_t *codez) {
 /**
  * Long mode instruction length decoder.
  */
-testonly int ild(const char16_t *codez) {
+int ild(const char16_t *codez) {
   int error;
   struct XedDecodedInst xedd;
   error = xed_instruction_length_decode(
@@ -46,7 +46,7 @@ testonly int ild(const char16_t *codez) {
 /**
  * Real mode instruction length decoder.
  */
-testonly int ildreal(const char16_t *codez) {
+int ildreal(const char16_t *codez) {
   int error;
   struct XedDecodedInst xedd;
   error = xed_instruction_length_decode(
@@ -58,7 +58,7 @@ testonly int ildreal(const char16_t *codez) {
 /**
  * Legacy mode instruction length decoder.
  */
-testonly int ildlegacy(const char16_t *codez) {
+int ildlegacy(const char16_t *codez) {
   int error;
   struct XedDecodedInst xedd;
   error = xed_instruction_length_decode(
diff --git a/tool/emacs/c.lang b/tool/emacs/c.lang
index f95fd4c23..c316300c3 100644
--- a/tool/emacs/c.lang
+++ b/tool/emacs/c.lang
@@ -84,7 +84,6 @@ Keywords={
 "offsetof",
 "microarchitecture",
 "targetclones",
-"testonly",
 "forcealignargpointer",
 "textexit",
 "externinline",
diff --git a/tool/emacs/cosmo-c-keywords.el b/tool/emacs/cosmo-c-keywords.el
index 34f61419b..7e166b8a6 100644
--- a/tool/emacs/cosmo-c-keywords.el
+++ b/tool/emacs/cosmo-c-keywords.el
@@ -26,7 +26,6 @@
            "offsetof"
            "microarchitecture"
            "targetclones"
-           "testonly"
            "forcealignargpointer"
            "textexit"
            "externinline"
diff --git a/tool/emacs/key.py b/tool/emacs/key.py
index fb85e31e6..739d79c04 100644
--- a/tool/emacs/key.py
+++ b/tool/emacs/key.py
@@ -369,7 +369,6 @@ cosmo_kws = frozenset([
   "scanfesque",
   "strftimeesque",
   "strlenesque",
-  "testonly",
   "textexit",
   "textreal",
   "textstartup",
@@ -432,7 +431,6 @@ cosmo_kws = frozenset([
   "scanfesque",
   "strftimeesque",
   "strlenesque",
-  "testonly",
   "textexit",
   "textreal",
   "textstartup",