Stop using .com extension in monorepo

The WIN32 CreateProcess() function does not require an .exe or .com suffix in order to spawn an executable. Now that we have Cosmo bash we're no longer so dependent on the cmd.exe prompt.
2025-07-12 14:09:12 +00:00 · 2024-03-02 16:57:56 -08:00 · 2024-03-02 16:57:56 -08:00 · a6baba1b07
commit a6baba1b07
parent c8383f25b4
239 changed files with 2092 additions and 2244 deletions
--- a/test/libc/calls/BUILD.mk
+++ b/test/libc/calls/BUILD.mk
@ -13,21 +13,21 @@ TEST_LIBC_CALLS_OBJS =							\
 	$(TEST_LIBC_CALLS_SRCS:%.c=o/$(MODE)/%.o)

 TEST_LIBC_CALLS_COMS =							\
-	$(TEST_LIBC_CALLS_SRCS_TEST:%.c=o/$(MODE)/%.com)
+	$(TEST_LIBC_CALLS_SRCS_TEST:%.c=o/$(MODE)/%)

 TEST_LIBC_CALLS_BINS =							\
 	$(TEST_LIBC_CALLS_COMS)						\
 	$(TEST_LIBC_CALLS_COMS:%=%.dbg)					\
-	o/$(MODE)/test/libc/calls/life-nomod.com			\
-	o/$(MODE)/test/libc/calls/life-classic.com			\
-	o/$(MODE)/test/libc/calls/zipread.com.dbg			\
-	o/$(MODE)/test/libc/calls/zipread.com
+	o/$(MODE)/test/libc/calls/life-nomod				\
+	o/$(MODE)/test/libc/calls/life-classic				\
+	o/$(MODE)/test/libc/calls/zipread.dbg				\
+	o/$(MODE)/test/libc/calls/zipread

 TEST_LIBC_CALLS_TESTS =							\
-	$(TEST_LIBC_CALLS_SRCS_TEST:%.c=o/$(MODE)/%.com.ok)
+	$(TEST_LIBC_CALLS_SRCS_TEST:%.c=o/$(MODE)/%.ok)

 TEST_LIBC_CALLS_CHECKS =						\
-	$(TEST_LIBC_CALLS_SRCS_TEST:%.c=o/$(MODE)/%.com.runs)
+	$(TEST_LIBC_CALLS_SRCS_TEST:%.c=o/$(MODE)/%.runs)

 TEST_LIBC_CALLS_DIRECTDEPS =						\
 	DSP_CORE							\
@ -61,7 +61,7 @@ o/$(MODE)/test/libc/calls/calls.pkg:					\
 		$(TEST_LIBC_CALLS_OBJS)					\
 		$(foreach x,$(TEST_LIBC_CALLS_DIRECTDEPS),$($(x)_A).pkg)

-o/$(MODE)/test/libc/calls/%.com.dbg:					\
+o/$(MODE)/test/libc/calls/%.dbg:					\
 		$(TEST_LIBC_CALLS_DEPS)					\
 		o/$(MODE)/test/libc/calls/%.o				\
 		o/$(MODE)/test/libc/calls/calls.pkg			\
@ -70,7 +70,7 @@ o/$(MODE)/test/libc/calls/%.com.dbg:					\
 		$(APE_NO_MODIFY_SELF)
 	@$(APELINK)

-o/$(MODE)/test/libc/calls/stat_test.com.dbg:				\
+o/$(MODE)/test/libc/calls/stat_test.dbg:				\
 		$(TEST_LIBC_CALLS_DEPS)					\
 		o/$(MODE)/test/libc/calls/stat_test.o			\
 		o/$(MODE)/third_party/python/Lib/test/tokenize_tests-latin1-coding-cookie-and-utf8-bom-sig.txt.zip.o	\
@ -80,7 +80,7 @@ o/$(MODE)/test/libc/calls/stat_test.com.dbg:				\
 		$(APE_NO_MODIFY_SELF)
 	@$(APELINK)

-o/$(MODE)/test/libc/calls/unveil_test.com.dbg:				\
+o/$(MODE)/test/libc/calls/unveil_test.dbg:				\
 		$(TEST_LIBC_CALLS_DEPS)					\
 		o/$(MODE)/test/libc/calls/unveil_test.o			\
 		o/$(MODE)/test/libc/mem/prog/life.elf.zip.o		\
@ -91,7 +91,7 @@ o/$(MODE)/test/libc/calls/unveil_test.com.dbg:				\
 		$(APE_NO_MODIFY_SELF)
 	@$(APELINK)

-o/$(MODE)/test/libc/calls/pledge_test.com.dbg:				\
+o/$(MODE)/test/libc/calls/pledge_test.dbg:				\
 		$(TEST_LIBC_CALLS_DEPS)					\
 		o/$(MODE)/test/libc/calls/pledge_test.o			\
 		o/$(MODE)/test/libc/mem/prog/life.elf.zip.o		\
@ -102,14 +102,14 @@ o/$(MODE)/test/libc/calls/pledge_test.com.dbg:				\
 		$(APE_NO_MODIFY_SELF)
 	@$(APELINK)

-o/$(MODE)/test/libc/calls/life-classic.com.dbg:				\
+o/$(MODE)/test/libc/calls/life-classic.dbg:				\
 		$(LIBC_RUNTIME)						\
 		o/$(MODE)/test/libc/calls/life.o			\
 		$(CRT)							\
 		$(APE)
 	@$(APELINK)

-o/$(MODE)/test/libc/calls/life-nomod.com.dbg:				\
+o/$(MODE)/test/libc/calls/life-nomod.dbg:				\
 		$(LIBC_RUNTIME)						\
 		o/$(MODE)/test/libc/calls/life.o			\
 		$(CRT)							\
@ -117,43 +117,43 @@ o/$(MODE)/test/libc/calls/life-nomod.com.dbg:				\
 	@$(APELINK)

 o/$(MODE)/test/libc/calls/tiny64.elf.zip.o				\
-o/$(MODE)/test/libc/calls/life-nomod.com.zip.o				\
-o/$(MODE)/test/libc/calls/life-classic.com.zip.o			\
-o/$(MODE)/test/libc/calls/zipread.com.zip.o: private			\
+o/$(MODE)/test/libc/calls/life-nomod.zip.o				\
+o/$(MODE)/test/libc/calls/life-classic.zip.o				\
+o/$(MODE)/test/libc/calls/zipread.zip.o: private			\
 		ZIPOBJ_FLAGS +=						\
 			-B

 # TODO(jart): Have pledge() support SIOCGIFCONF
-o/$(MODE)/test/libc/calls/ioctl_test.com.runs:				\
+o/$(MODE)/test/libc/calls/ioctl_test.runs:				\
 		private .PLEDGE =

-o/$(MODE)/test/libc/calls/lseek_test.com.runs				\
-o/$(MODE)/test/libc/calls/poll_test.com.runs:				\
+o/$(MODE)/test/libc/calls/lseek_test.runs				\
+o/$(MODE)/test/libc/calls/poll_test.runs:				\
 		private .PLEDGE = stdio rpath wpath cpath fattr proc inet

-o/$(MODE)/test/libc/calls/fcntl_test.com.runs				\
-o/$(MODE)/test/libc/calls/lock_test.com.runs				\
-o/$(MODE)/test/libc/calls/lock2_test.com.runs				\
-o/$(MODE)/test/libc/calls/lock_ofd_test.com.runs:			\
+o/$(MODE)/test/libc/calls/fcntl_test.runs				\
+o/$(MODE)/test/libc/calls/lock_test.runs				\
+o/$(MODE)/test/libc/calls/lock2_test.runs				\
+o/$(MODE)/test/libc/calls/lock_ofd_test.runs:				\
 		private .PLEDGE = stdio rpath wpath cpath fattr proc flock

-o/$(MODE)/test/libc/calls/unveil_test.com.runs				\
-o/$(MODE)/test/libc/calls/openbsd_test.com.runs:			\
+o/$(MODE)/test/libc/calls/unveil_test.runs				\
+o/$(MODE)/test/libc/calls/openbsd_test.runs:				\
 		private .PLEDGE = stdio rpath wpath cpath fattr proc unveil

-o/$(MODE)/test/libc/calls/fexecve_test.com.runs:			\
+o/$(MODE)/test/libc/calls/fexecve_test.runs:				\
 		private .UNSANDBOXED = 1  # for memfd_create()

-o/$(MODE)/test/libc/calls/execve_test.com.runs:				\
+o/$(MODE)/test/libc/calls/execve_test.runs:				\
 		private .UNSANDBOXED = 1  # for memfd_create()

-o/$(MODE)/test/libc/calls/read_test.com.runs:				\
+o/$(MODE)/test/libc/calls/read_test.runs:				\
 		private .UNVEIL += /dev/zero

 # TODO(jart): Update nointernet() to allow AF_INET6
-o/$(MODE)/test/libc/calls/pledge_test.com.runs:				\
+o/$(MODE)/test/libc/calls/pledge_test.runs:				\
 		private .INTERNET = 1
-o/$(MODE)/test/libc/calls/pledge_test.com.runs:				\
+o/$(MODE)/test/libc/calls/pledge_test.runs:				\
 		private .PLEDGE =

 .PHONY: o/$(MODE)/test/libc/calls
--- a/test/libc/calls/commandv_test.c
+++ b/test/libc/calls/commandv_test.c
@ -55,35 +55,34 @@ TEST(commandv, testPathSearch) {
 }

 TEST(commandv, testSlashes_wontSearchPath_butChecksAccess) {
-  EXPECT_SYS(0, 3, creat("home/sh.com", 0755));
+  EXPECT_SYS(0, 3, creat("home/sh", 0755));
  EXPECT_SYS(0, 2, write(3, "MZ", 2));
  EXPECT_SYS(0, 0, close(3));
-  EXPECT_STREQ("home/sh.com",
-               commandv("home/sh.com", pathbuf, sizeof(pathbuf)));
+  EXPECT_STREQ("home/sh", commandv("home/sh", pathbuf, sizeof(pathbuf)));
 }

 TEST(commandv, testSameDir_doesntHappenByDefaultUnlessItsWindows) {
-  EXPECT_SYS(0, 3, creat("bog.com", 0755));
+  EXPECT_SYS(0, 3, creat("bog", 0755));
  EXPECT_SYS(0, 2, write(3, "MZ", 2));
  EXPECT_SYS(0, 0, close(3));
-  EXPECT_STREQ(NULL, commandv("bog.com", pathbuf, sizeof(pathbuf)));
+  EXPECT_STREQ(NULL, commandv("bog", pathbuf, sizeof(pathbuf)));
  EXPECT_EQ(ENOENT, errno);
 }

 TEST(commandv, testSameDir_willHappenWithColonBlank) {
  ASSERT_NE(-1, setenv("PATH", "bin:", true));
-  EXPECT_SYS(0, 3, creat("bog.com", 0755));
+  EXPECT_SYS(0, 3, creat("bog", 0755));
  EXPECT_SYS(0, 2, write(3, "MZ", 2));
  EXPECT_SYS(0, 0, close(3));
-  EXPECT_STREQ("bog.com", commandv("bog.com", pathbuf, sizeof(pathbuf)));
+  EXPECT_STREQ("bog", commandv("bog", pathbuf, sizeof(pathbuf)));
 }

 TEST(commandv, testSameDir_willHappenWithColonBlank2) {
  ASSERT_NE(-1, setenv("PATH", ":bin", true));
-  EXPECT_SYS(0, 3, creat("bog.com", 0755));
+  EXPECT_SYS(0, 3, creat("bog", 0755));
  EXPECT_SYS(0, 2, write(3, "MZ", 2));
  EXPECT_SYS(0, 0, close(3));
-  EXPECT_STREQ("bog.com", commandv("bog.com", pathbuf, sizeof(pathbuf)));
+  EXPECT_STREQ("bog", commandv("bog", pathbuf, sizeof(pathbuf)));
 }

 TEST(commandv, test_DirPaths_wontConsiderDirectoriesExecutable) {
@ -95,9 +94,8 @@ TEST(commandv, test_DirPaths_wontConsiderDirectoriesExecutable) {

 TEST(commandv, test_DirPaths_wontConsiderDirectoriesExecutable2) {
  ASSERT_NE(-1, setenv("PATH", ":bin", true));
-  EXPECT_SYS(0, 0, mkdir("this_is_a_directory.com", 0755));
-  EXPECT_STREQ(NULL,
-               commandv("this_is_a_directory.com", pathbuf, sizeof(pathbuf)));
+  EXPECT_SYS(0, 0, mkdir("this_is_a_directory", 0755));
+  EXPECT_STREQ(NULL, commandv("this_is_a_directory", pathbuf, sizeof(pathbuf)));
  EXPECT_EQ(ENOENT, errno);
 }

--- a/test/libc/calls/getprogramexecutablename_test.c
+++ b/test/libc/calls/getprogramexecutablename_test.c
@ -124,7 +124,7 @@ TEST(GetProgramExecutableName, movedSelf) {
  if (skiptests) return;
  if (IsAarch64() && IsQemuUser()) {
    // clang-format off
-    // TODO(mrdomino): fix: make -j8 m=aarch64 o/aarch64/test/libc/calls/getprogramexecutablename_test.com.ok
+    // TODO(mrdomino): fix: make -j8 m=aarch64 o/aarch64/test/libc/calls/getprogramexecutablename_test.ok
    //                 possibly related to the intersection of binfmt_misc and qemu-aarch64
    // clang-format on
    return;
--- a/test/libc/calls/mkntcmdline_test.c
+++ b/test/libc/calls/mkntcmdline_test.c
@ -85,9 +85,9 @@ TEST(mkntcmdline, fixit) {
 }

 TEST(mkntcmdline, testWut) {
-  char *argv[] = {"C:\\Users\\jart\\𝑟𝑒𝑑𝑏𝑒𝑎𝑛.com", "--strace", NULL};
+  char *argv[] = {"C:\\Users\\jart\\𝑟𝑒𝑑𝑏𝑒𝑎𝑛", "--strace", NULL};
  EXPECT_NE(-1, mkntcmdline(cmdline, argv));
-  EXPECT_STREQ(u"C:\\Users\\jart\\𝑟𝑒𝑑𝑏𝑒𝑎𝑛.com --strace", cmdline);
+  EXPECT_STREQ(u"C:\\Users\\jart\\𝑟𝑒𝑑𝑏𝑒𝑎𝑛 --strace", cmdline);
 }

 BENCH(mkntcmdline, lotsOfArgs) {
--- a/test/libc/calls/mkntpath_test.c
+++ b/test/libc/calls/mkntpath_test.c
@ -37,8 +37,8 @@ TEST(mkntpath, testSlashes) {
   * all it takes to make the feature entirely useless to us, similar to
   * the law of noncontradiction. We address the issue as follows:
   */
-  EXPECT_EQ(9, __mkntpath("o/foo.com", p));
-  EXPECT_STREQ(u"o\\foo.com", p);
+  EXPECT_EQ(5, __mkntpath("o/foo", p));
+  EXPECT_STREQ(u"o\\foo", p);
 }

 TEST(mkntpath, testUnicode) {
--- a/test/libc/fmt/BUILD.mk
+++ b/test/libc/fmt/BUILD.mk
@ -6,58 +6,58 @@ PKGS += TEST_LIBC_FMT
 TEST_LIBC_FMT_SRCS := $(wildcard test/libc/fmt/*.c)
 TEST_LIBC_FMT_SRCS_TEST = $(filter %_test.c,$(TEST_LIBC_FMT_SRCS))
 TEST_LIBC_FMT_BINS = $(TEST_LIBC_FMT_COMS) $(TEST_LIBC_FMT_COMS:%=%.dbg)
-TEST_LIBC_FMT_TESTS = $(TEST_LIBC_FMT_SRCS_TEST:%.c=o/$(MODE)/%.com.ok)
+TEST_LIBC_FMT_TESTS = $(TEST_LIBC_FMT_SRCS_TEST:%.c=o/$(MODE)/%.ok)

-TEST_LIBC_FMT_OBJS =					\
+TEST_LIBC_FMT_OBJS =				\
 	$(TEST_LIBC_FMT_SRCS:%.c=o/$(MODE)/%.o)

-TEST_LIBC_FMT_COMS =					\
-	$(TEST_LIBC_FMT_SRCS:%.c=o/$(MODE)/%.com)
+TEST_LIBC_FMT_COMS =				\
+	$(TEST_LIBC_FMT_SRCS:%.c=o/$(MODE)/%)

-TEST_LIBC_FMT_CHECKS =					\
-	$(TEST_LIBC_FMT_SRCS_TEST:%.c=o/$(MODE)/%.com.runs)
+TEST_LIBC_FMT_CHECKS =				\
+	$(TEST_LIBC_FMT_SRCS_TEST:%.c=o/$(MODE)/%.runs)

-TEST_LIBC_FMT_DIRECTDEPS =				\
-	LIBC_FMT					\
-	LIBC_INTRIN					\
-	LIBC_LOG					\
-	LIBC_MEM					\
-	LIBC_NEXGEN32E					\
-	LIBC_RUNTIME					\
-	LIBC_STDIO					\
-	LIBC_STR					\
-	LIBC_SYSV					\
-	LIBC_TESTLIB					\
-	LIBC_TINYMATH					\
-	LIBC_X						\
+TEST_LIBC_FMT_DIRECTDEPS =			\
+	LIBC_FMT				\
+	LIBC_INTRIN				\
+	LIBC_LOG				\
+	LIBC_MEM				\
+	LIBC_NEXGEN32E				\
+	LIBC_RUNTIME				\
+	LIBC_STDIO				\
+	LIBC_STR				\
+	LIBC_SYSV				\
+	LIBC_TESTLIB				\
+	LIBC_TINYMATH				\
+	LIBC_X					\
 	THIRD_PARTY_GDTOA

-TEST_LIBC_FMT_DEPS :=					\
+TEST_LIBC_FMT_DEPS :=				\
 	$(call uniq,$(foreach x,$(TEST_LIBC_FMT_DIRECTDEPS),$($(x))))

-o/$(MODE)/test/libc/fmt/fmt.pkg:			\
-		$(TEST_LIBC_FMT_OBJS)			\
+o/$(MODE)/test/libc/fmt/fmt.pkg:		\
+		$(TEST_LIBC_FMT_OBJS)		\
 		$(foreach x,$(TEST_LIBC_FMT_DIRECTDEPS),$($(x)_A).pkg)

-o/$(MODE)/test/libc/fmt/%.com.dbg:			\
-		$(TEST_LIBC_FMT_DEPS)			\
-		o/$(MODE)/test/libc/fmt/%.o		\
-		o/$(MODE)/test/libc/fmt/fmt.pkg		\
-		$(LIBC_TESTMAIN)			\
-		$(CRT)					\
+o/$(MODE)/test/libc/fmt/%.dbg:			\
+		$(TEST_LIBC_FMT_DEPS)		\
+		o/$(MODE)/test/libc/fmt/%.o	\
+		o/$(MODE)/test/libc/fmt/fmt.pkg	\
+		$(LIBC_TESTMAIN)		\
+		$(CRT)				\
 		$(APE_NO_MODIFY_SELF)
 	@$(APELINK)

 $(TEST_LIBC_FMT_OBJS): test/libc/fmt/BUILD.mk

-$(TEST_LIBC_FMT_OBJS): private				\
-	DEFAULT_CCFLAGS +=				\
+$(TEST_LIBC_FMT_OBJS): private			\
+	DEFAULT_CCFLAGS +=			\
 		-fno-builtin

-o/$(MODE)/test/libc/fmt/fprintf_test.com.runs:		\
+o/$(MODE)/test/libc/fmt/fprintf_test.runs:	\
 	private .UNVEIL += w:/dev/full

 .PHONY: o/$(MODE)/test/libc/fmt
-o/$(MODE)/test/libc/fmt:				\
-		$(TEST_LIBC_FMT_BINS)			\
+o/$(MODE)/test/libc/fmt:			\
+		$(TEST_LIBC_FMT_BINS)		\
 		$(TEST_LIBC_FMT_CHECKS)
--- a/test/libc/fmt/stripexts_test.c
+++ b/test/libc/fmt/stripexts_test.c
@ -23,19 +23,19 @@
 #include "libc/x/x.h"

 TEST(stripexts, test) {
-  char s[] = "foo/bar.com.dbg";
+  char s[] = "foo/bar.dbg";
  EXPECT_STREQ("foo/bar", stripexts(s));
 }

 TEST(stripexts, test2) {
-  char s[] = "foo/bar.com.dbg";
+  char s[] = "foo/bar.dbg";
  EXPECT_STREQ("bar", stripexts(basename(s)));
 }

 TEST(xstripexts, test) {
-  EXPECT_STREQ("foo/bar", gc(xstripexts("foo/bar.com.dbg")));
+  EXPECT_STREQ("foo/bar", gc(xstripexts("foo/bar.dbg")));
 }

 TEST(xstripexts, test2) {
-  EXPECT_STREQ("bar", gc(xstripexts(basename("foo/bar.com.dbg"))));
+  EXPECT_STREQ("bar", gc(xstripexts(basename("foo/bar.dbg"))));
 }
--- a/test/libc/intrin/BUILD.mk
+++ b/test/libc/intrin/BUILD.mk
@ -10,17 +10,17 @@ TEST_LIBC_INTRIN_OBJS =					\
 	$(TEST_LIBC_INTRIN_SRCS:%.c=o/$(MODE)/%.o)

 TEST_LIBC_INTRIN_COMS =					\
-	$(TEST_LIBC_INTRIN_SRCS:%.c=o/$(MODE)/%.com)
+	$(TEST_LIBC_INTRIN_SRCS:%.c=o/$(MODE)/%)

 TEST_LIBC_INTRIN_BINS =					\
 	$(TEST_LIBC_INTRIN_COMS)			\
 	$(TEST_LIBC_INTRIN_COMS:%=%.dbg)

 TEST_LIBC_INTRIN_TESTS =				\
-	$(TEST_LIBC_INTRIN_SRCS_TEST:%.c=o/$(MODE)/%.com.ok)
+	$(TEST_LIBC_INTRIN_SRCS_TEST:%.c=o/$(MODE)/%.ok)

 TEST_LIBC_INTRIN_CHECKS =				\
-	$(TEST_LIBC_INTRIN_SRCS_TEST:%.c=o/$(MODE)/%.com.runs)
+	$(TEST_LIBC_INTRIN_SRCS_TEST:%.c=o/$(MODE)/%.runs)

 TEST_LIBC_INTRIN_DIRECTDEPS =				\
 	LIBC_CALLS					\
@ -50,7 +50,7 @@ o/$(MODE)/test/libc/intrin/intrin.pkg:			\
 		$(TEST_LIBC_INTRIN_OBJS)		\
 		$(foreach x,$(TEST_LIBC_INTRIN_DIRECTDEPS),$($(x)_A).pkg)

-o/$(MODE)/test/libc/intrin/%.com.dbg:			\
+o/$(MODE)/test/libc/intrin/%.dbg:			\
 		$(TEST_LIBC_INTRIN_DEPS)		\
 		o/$(MODE)/test/libc/intrin/%.o		\
 		o/$(MODE)/test/libc/intrin/intrin.pkg	\
@ -60,7 +60,7 @@ o/$(MODE)/test/libc/intrin/%.com.dbg:			\
 	@$(APELINK)

 # Test what happens when *NSYNC isn't linked.
-o/$(MODE)/test/libc/intrin/lock_test.com.dbg:		\
+o/$(MODE)/test/libc/intrin/lock_test.dbg:		\
 		$(TEST_LIBC_INTRIN_DEPS)		\
 		o/$(MODE)/test/libc/intrin/lock_test.o	\
 		o/$(MODE)/test/libc/intrin/intrin.pkg	\
--- a/test/libc/intrin/lockscale_test.c
+++ b/test/libc/intrin/lockscale_test.c
@ -31,7 +31,7 @@
 *
 * This test can be run as follows:
 *
- *     make o//test/libc/intrin/lockscale_test.com.runs V=5 TESTARGS=-b
+ *     make o//test/libc/intrin/lockscale_test.runs V=5 TESTARGS=-b
 *
 * It's intended to demonstrate the importance of futexes. On systems
 * that don't have them, this test consumes orders of a magnitude more
--- a/test/libc/log/BUILD.mk
+++ b/test/libc/log/BUILD.mk
@ -8,21 +8,21 @@ TEST_LIBC_LOG_SRCS_TEST = $(filter %_test.c,$(TEST_LIBC_LOG_SRCS))

 TEST_LIBC_LOG_OBJS =						\
 	$(TEST_LIBC_LOG_SRCS:%.c=o/$(MODE)/%.o)			\
-	o/$(MODE)/test/libc/log/backtrace.com.zip.o		\
-	o/$(MODE)/test/libc/log/backtrace.com.dbg.zip.o
+	o/$(MODE)/test/libc/log/backtrace.zip.o			\
+	o/$(MODE)/test/libc/log/backtrace.dbg.zip.o

 TEST_LIBC_LOG_COMS =						\
-	$(TEST_LIBC_LOG_SRCS:%.c=o/$(MODE)/%.com)
+	$(TEST_LIBC_LOG_SRCS:%.c=o/$(MODE)/%)

 TEST_LIBC_LOG_BINS =						\
 	$(TEST_LIBC_LOG_COMS)					\
 	$(TEST_LIBC_LOG_COMS:%=%.dbg)

 TEST_LIBC_LOG_TESTS =						\
-	$(TEST_LIBC_LOG_SRCS_TEST:%.c=o/$(MODE)/%.com.ok)
+	$(TEST_LIBC_LOG_SRCS_TEST:%.c=o/$(MODE)/%.ok)

 TEST_LIBC_LOG_CHECKS =						\
-	$(TEST_LIBC_LOG_SRCS_TEST:%.c=o/$(MODE)/%.com.runs)
+	$(TEST_LIBC_LOG_SRCS_TEST:%.c=o/$(MODE)/%.runs)

 TEST_LIBC_LOG_DIRECTDEPS =					\
 	LIBC_CALLS						\
@ -47,7 +47,7 @@ o/$(MODE)/test/libc/log/log.pkg:				\
 		$(TEST_LIBC_LOG_OBJS)				\
 		$(foreach x,$(TEST_LIBC_LOG_DIRECTDEPS),$($(x)_A).pkg)

-o/$(MODE)/test/libc/log/%.com.dbg:				\
+o/$(MODE)/test/libc/log/%.dbg:					\
 		$(TEST_LIBC_LOG_DEPS)				\
 		o/$(MODE)/test/libc/log/%.o			\
 		o/$(MODE)/test/libc/log/log.pkg			\
@ -56,10 +56,10 @@ o/$(MODE)/test/libc/log/%.com.dbg:				\
 		$(APE_NO_MODIFY_SELF)
 	@$(APELINK)

-o/$(MODE)/test/libc/log/backtrace_test.com.dbg:			\
+o/$(MODE)/test/libc/log/backtrace_test.dbg:			\
 		$(TEST_LIBC_LOG_DEPS)				\
-		o/$(MODE)/test/libc/log/backtrace.com.zip.o	\
-		o/$(MODE)/test/libc/log/backtrace.com.dbg.zip.o	\
+		o/$(MODE)/test/libc/log/backtrace.zip.o		\
+		o/$(MODE)/test/libc/log/backtrace.dbg.zip.o	\
 		o/$(MODE)/test/libc/log/backtrace_test.o	\
 		o/$(MODE)/test/libc/log/log.pkg			\
 		$(LIBC_TESTMAIN)				\
@ -67,15 +67,15 @@ o/$(MODE)/test/libc/log/backtrace_test.com.dbg:			\
 		$(APE_NO_MODIFY_SELF)
 	@$(APELINK)

-o/$(MODE)/test/libc/log/backtrace.com.dbg:			\
+o/$(MODE)/test/libc/log/backtrace.dbg:				\
 		$(TEST_LIBC_LOG_DEPS)				\
 		o/$(MODE)/test/libc/log/backtrace.o		\
 		$(CRT)						\
 		$(APE_NO_MODIFY_SELF)
 	@$(APELINK)

-o/$(MODE)/test/libc/log/backtrace.com.zip.o			\
-o/$(MODE)/test/libc/log/backtrace.com.dbg.zip.o: private	\
+o/$(MODE)/test/libc/log/backtrace.zip.o				\
+o/$(MODE)/test/libc/log/backtrace.dbg.zip.o: private		\
 		ZIPOBJ_FLAGS +=					\
 			-B

--- a/test/libc/log/backtrace_test.c
+++ b/test/libc/log/backtrace_test.c
@ -41,14 +41,14 @@
 #ifdef __x86_64__

 #if 0
-__static_yoink("backtrace.com");
-__static_yoink("backtrace.com.dbg");
+__static_yoink("backtrace");
+__static_yoink("backtrace.dbg");

 void SetUpOnce(void) {
  testlib_enable_tmp_setup_teardown_once();
  ASSERT_NE(-1, mkdir("bin", 0755));
-  testlib_extract("/zip/backtrace.com", "bin/backtrace.com", 0755);
-  testlib_extract("/zip/backtrace.com.dbg", "bin/backtrace.com.dbg", 0755);
+  testlib_extract("/zip/backtrace", "bin/backtrace", 0755);
+  testlib_extract("/zip/backtrace.dbg", "bin/backtrace.dbg", 0755);
 }

 static bool OutputHasSymbol(const char *output, const char *s) {
@ -56,7 +56,7 @@ static bool OutputHasSymbol(const char *output, const char *s) {
 }

 // UNFREED MEMORY
-// o/dbg/test/libc/log/backtrace_test.com
+// o/dbg/test/libc/log/backtrace_test
 // max allocated space            655,360
 // total allocated space               80
 // total free space               327,600
@ -95,7 +95,7 @@ TEST(ShowCrashReports, testMemoryLeakCrash) {
  if (!pid) {
    dup2(fds[1], 1);
    dup2(fds[1], 2);
-    execv("bin/backtrace.com", (char *const[]){"bin/backtrace.com", "6", 0});
+    execv("bin/backtrace", (char *const[]){"bin/backtrace", "6", 0});
    _Exit(127);
  }
  close(fds[1]);
@ -126,7 +126,7 @@ TEST(ShowCrashReports, testMemoryLeakCrash) {
 }

 // error: Uncaught SIGFPE (FPE_INTDIV) on nightmare pid 11724
-//   /home/jart/cosmo/o/dbg/test/libc/log/backtrace_test.com.tmp.11721
+//   /home/jart/cosmo/o/dbg/test/libc/log/backtrace_test.tmp.11721
 //   ENOTTY[25]
 //   Linux nightmare SMP Thu, 12 Aug 2021 06:16:45 UTC
 //
@ -164,9 +164,9 @@ TEST(ShowCrashReports, testMemoryLeakCrash) {
 // /* 22 frames mapped w/ 1,879,015,395 frames gapped */
 //
 // 00400000-0045b000 r-xp 00000000 08:03 4587526
-// /home/jart/cosmo/o/dbg/test/libc/log/backtrace_test.com.tmp.11721
+// /home/jart/cosmo/o/dbg/test/libc/log/backtrace_test.tmp.11721
 // 0045b000-00461000 rw-p 0005b000 08:03 4587526
-// /home/jart/cosmo/o/dbg/test/libc/log/backtrace_test.com.tmp.11721
+// /home/jart/cosmo/o/dbg/test/libc/log/backtrace_test.tmp.11721
 // 00461000-004a0000 rw-p 00000000 00:00 0
 // 80070000-80090000 rw-p 00000000 00:00 0
 // e007ffd0000-e0080000000 rw-p 00000000 00:00 0
@ -176,7 +176,7 @@ TEST(ShowCrashReports, testMemoryLeakCrash) {
 // 7ffe075a8000-7ffe075ab000 r--p 00000000 00:00 0 [vvar]
 // 7ffe075ab000-7ffe075ac000 r-xp 00000000 00:00 0 [vdso]
 //
-// /home/jart/cosmo/o/dbg/test/libc/log/backtrace_test.com.tmp.11721 1
+// /home/jart/cosmo/o/dbg/test/libc/log/backtrace_test.tmp.11721 1
 TEST(ShowCrashReports, testDivideByZero) {
  size_t got;
  ssize_t rc;
@ -187,7 +187,7 @@ TEST(ShowCrashReports, testDivideByZero) {
  if (!pid) {
    dup2(fds[1], 1);
    dup2(fds[1], 2);
-    execv("bin/backtrace.com", (char *const[]){"bin/backtrace.com", "1", 0});
+    execv("bin/backtrace", (char *const[]){"bin/backtrace", "1", 0});
    _Exit(127);
  }
  close(fds[1]);
@ -312,7 +312,7 @@ TEST(ShowCrashReports, testBssOverrunCrash) {
  if (!pid) {
    dup2(fds[1], 1);
    dup2(fds[1], 2);
-    execv("bin/backtrace.com", (char *const[]){"bin/backtrace.com", "2", 0});
+    execv("bin/backtrace", (char *const[]){"bin/backtrace", "2", 0});
    _Exit(127);
  }
  close(fds[1]);
@ -387,7 +387,7 @@ TEST(ShowCrashReports, testNpeCrash) {
  if (!pid) {
    dup2(fds[1], 1);
    dup2(fds[1], 2);
-    execv("bin/backtrace.com", (char *const[]){"bin/backtrace.com", "7", 0});
+    execv("bin/backtrace", (char *const[]){"bin/backtrace", "7", 0});
    _Exit(127);
  }
  close(fds[1]);
@ -431,7 +431,7 @@ TEST(ShowCrashReports, testDataOverrunCrash) {
  if (!pid) {
    dup2(fds[1], 1);
    dup2(fds[1], 2);
-    execv("bin/backtrace.com", (char *const[]){"bin/backtrace.com", "4", 0});
+    execv("bin/backtrace", (char *const[]){"bin/backtrace", "4", 0});
    _Exit(127);
  }
  close(fds[1]);
@ -479,7 +479,7 @@ TEST(ShowCrashReports, testNpeCrashAfterFinalize) {
  if (!pid) {
    dup2(fds[1], 1);
    dup2(fds[1], 2);
-    execv("bin/backtrace.com", (char *const[]){"bin/backtrace.com", "8", 0});
+    execv("bin/backtrace", (char *const[]){"bin/backtrace", "8", 0});
    _Exit(127);
  }
  close(fds[1]);
--- a/test/libc/mem/BUILD.mk
+++ b/test/libc/mem/BUILD.mk
@ -13,20 +13,20 @@ 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)		\
-	$(TEST_LIBC_MEM_SRCS_CC:%.cc=o/$(MODE)/%.com)
+	$(TEST_LIBC_MEM_SRCS_C:%.c=o/$(MODE)/%)			\
+	$(TEST_LIBC_MEM_SRCS_CC:%.cc=o/$(MODE)/%)

 TEST_LIBC_MEM_BINS =						\
 	$(TEST_LIBC_MEM_COMS)					\
 	$(TEST_LIBC_MEM_COMS:%=%.dbg)

 TEST_LIBC_MEM_TESTS =						\
-	$(TEST_LIBC_MEM_SRCS_C:%.c=o/$(MODE)/%.com.ok)		\
-	$(TEST_LIBC_MEM_SRCS_CC:%.cc=o/$(MODE)/%.com.ok)
+	$(TEST_LIBC_MEM_SRCS_C:%.c=o/$(MODE)/%.ok)		\
+	$(TEST_LIBC_MEM_SRCS_CC:%.cc=o/$(MODE)/%.ok)

 TEST_LIBC_MEM_CHECKS =						\
-	$(TEST_LIBC_MEM_SRCS_C:%.c=o/$(MODE)/%.com.runs)	\
-	$(TEST_LIBC_MEM_SRCS_CC:%.cc=o/$(MODE)/%.com.runs)
+	$(TEST_LIBC_MEM_SRCS_C:%.c=o/$(MODE)/%.runs)		\
+	$(TEST_LIBC_MEM_SRCS_CC:%.cc=o/$(MODE)/%.runs)

 TEST_LIBC_MEM_DIRECTDEPS =					\
 	LIBC_CALLS						\
@ -55,7 +55,7 @@ o/$(MODE)/test/libc/mem/mem.pkg:				\
 		$(TEST_LIBC_MEM_OBJS)				\
 		$(foreach x,$(TEST_LIBC_MEM_DIRECTDEPS),$($(x)_A).pkg)

-o/$(MODE)/test/libc/mem/%.com.dbg:				\
+o/$(MODE)/test/libc/mem/%.dbg:					\
 		$(TEST_LIBC_MEM_DEPS)				\
 		o/$(MODE)/test/libc/mem/%.o			\
 		o/$(MODE)/test/libc/mem/mem.pkg			\
@ -74,7 +74,7 @@ o/$(MODE)/test/libc/mem/prog/sock.o:				\

 ################################################################################

-o/$(MODE)/test/libc/mem/prog/life.com.dbg:			\
+o/$(MODE)/test/libc/mem/prog/life.dbg:				\
 		$(LIBC_RUNTIME)					\
 		o/$(MODE)/test/libc/mem/prog/life.o		\
 		$(CRT)						\
@ -82,14 +82,14 @@ o/$(MODE)/test/libc/mem/prog/life.com.dbg:			\
 	@$(APELINK)

 o/$(MODE)/test/libc/mem/prog/life.elf:				\
-		o/$(MODE)/tool/build/assimilate.com		\
-		o/$(MODE)/test/libc/mem/prog/life.com
+		o/$(MODE)/tool/build/assimilate			\
+		o/$(MODE)/test/libc/mem/prog/life
 	@$(COMPILE) -wACP -T$@					\
-		build/bootstrap/cp.com				\
-		o/$(MODE)/test/libc/mem/prog/life.com		\
+		build/bootstrap/cp				\
+		o/$(MODE)/test/libc/mem/prog/life		\
 		o/$(MODE)/test/libc/mem/prog/life.elf
 	@$(COMPILE) -wAASSIMILATE -T$@				\
-		o/$(MODE)/tool/build/assimilate.com -bcef	\
+		o/$(MODE)/tool/build/assimilate -bcef		\
 		o/$(MODE)/test/libc/mem/prog/life.elf

 o/$(MODE)/test/libc/mem/prog/life.elf.zip.o: private		\
@ -98,13 +98,13 @@ o/$(MODE)/test/libc/mem/prog/life.elf.zip.o: private		\

 ################################################################################

-o/$(MODE)/test/libc/mem/prog/life.com.zip.o: private		\
+o/$(MODE)/test/libc/mem/prog/life.zip.o: private		\
 		ZIPOBJ_FLAGS +=					\
 			-B

 ################################################################################

-o/$(MODE)/test/libc/mem/prog/sock.com.dbg:			\
+o/$(MODE)/test/libc/mem/prog/sock.dbg:				\
 		$(LIBC_RUNTIME)					\
 		$(LIBC_SOCK)					\
 		o/$(MODE)/test/libc/mem/prog/sock.o		\
@ -113,14 +113,14 @@ o/$(MODE)/test/libc/mem/prog/sock.com.dbg:			\
 	@$(APELINK)

 o/$(MODE)/test/libc/mem/prog/sock.elf:				\
-		o/$(MODE)/tool/build/assimilate.com		\
-		o/$(MODE)/test/libc/mem/prog/sock.com
+		o/$(MODE)/tool/build/assimilate			\
+		o/$(MODE)/test/libc/mem/prog/sock
 	@$(COMPILE) -wACP -T$@					\
-		build/bootstrap/cp.com				\
-		o/$(MODE)/test/libc/mem/prog/sock.com		\
+		build/bootstrap/cp				\
+		o/$(MODE)/test/libc/mem/prog/sock		\
 		o/$(MODE)/test/libc/mem/prog/sock.elf
 	@$(COMPILE) -wAASSIMILATE -T$@				\
-		o/$(MODE)/tool/build/assimilate.com -cef	\
+		o/$(MODE)/tool/build/assimilate -cef		\
 		o/$(MODE)/test/libc/mem/prog/sock.elf

 o/$(MODE)/test/libc/mem/prog/sock.elf.zip.o: private		\
--- a/test/libc/nexgen32e/BUILD.mk
+++ b/test/libc/nexgen32e/BUILD.mk
@ -12,17 +12,17 @@ TEST_LIBC_NEXGEN32E_OBJS =					\
 	$(TEST_LIBC_NEXGEN32E_SRCS:%.c=o/$(MODE)/%.o)

 TEST_LIBC_NEXGEN32E_COMS =					\
-	$(TEST_LIBC_NEXGEN32E_SRCS:%.c=o/$(MODE)/%.com)
+	$(TEST_LIBC_NEXGEN32E_SRCS:%.c=o/$(MODE)/%)

 TEST_LIBC_NEXGEN32E_BINS =					\
 	$(TEST_LIBC_NEXGEN32E_COMS)				\
 	$(TEST_LIBC_NEXGEN32E_COMS:%=%.dbg)

 TEST_LIBC_NEXGEN32E_TESTS =					\
-	$(TEST_LIBC_NEXGEN32E_SRCS_TEST:%.c=o/$(MODE)/%.com.ok)
+	$(TEST_LIBC_NEXGEN32E_SRCS_TEST:%.c=o/$(MODE)/%.ok)

 TEST_LIBC_NEXGEN32E_CHECKS =					\
-	$(TEST_LIBC_NEXGEN32E_SRCS_TEST:%.c=o/$(MODE)/%.com.runs)
+	$(TEST_LIBC_NEXGEN32E_SRCS_TEST:%.c=o/$(MODE)/%.runs)

 TEST_LIBC_NEXGEN32E_DIRECTDEPS =				\
 	LIBC_CALLS						\
@ -48,7 +48,7 @@ o/$(MODE)/test/libc/nexgen32e/nexgen32e.pkg:			\
 		$(TEST_LIBC_NEXGEN32E_OBJS)			\
 		$(foreach x,$(TEST_LIBC_NEXGEN32E_DIRECTDEPS),$($(x)_A).pkg)

-o/$(MODE)/test/libc/nexgen32e/%.com.dbg:			\
+o/$(MODE)/test/libc/nexgen32e/%.dbg:				\
 		$(TEST_LIBC_NEXGEN32E_DEPS)			\
 		o/$(MODE)/test/libc/nexgen32e/%.o		\
 		o/$(MODE)/test/libc/nexgen32e/nexgen32e.pkg	\
@ -58,10 +58,10 @@ o/$(MODE)/test/libc/nexgen32e/%.com.dbg:			\
 	@$(APELINK)

 # we can't run this test on openbsd because rwx memory isn't allowed
-o/$(MODE)/test/libc/nexgen32e/stackrwx_test.com.ok:		\
-		o/$(MODE)/tool/build/runit.com			\
-		o/$(MODE)/tool/build/runitd.com			\
-		o/$(MODE)/test/libc/nexgen32e/stackrwx_test.com
+o/$(MODE)/test/libc/nexgen32e/stackrwx_test.ok:			\
+		o/$(MODE)/tool/build/runit			\
+		o/$(MODE)/tool/build/runitd			\
+		o/$(MODE)/test/libc/nexgen32e/stackrwx_test
 	@$(COMPILE) -wATEST -tT$@ $^ $(filter-out openbsd,$(HOSTS))

 $(TEST_LIBC_NEXGEN32E_OBJS): private				\
--- a/test/libc/proc/BUILD.mk
+++ b/test/libc/proc/BUILD.mk
@ -6,90 +6,90 @@ PKGS += TEST_LIBC_PROC
 TEST_LIBC_PROC_SRCS := $(wildcard test/libc/proc/*.c)
 TEST_LIBC_PROC_SRCS_TEST = $(filter %_test.c,$(TEST_LIBC_PROC_SRCS))

-TEST_LIBC_PROC_OBJS =						\
+TEST_LIBC_PROC_OBJS =							\
 	$(TEST_LIBC_PROC_SRCS:%.c=o/$(MODE)/%.o)

-TEST_LIBC_PROC_COMS =						\
-	$(TEST_LIBC_PROC_SRCS:%.c=o/$(MODE)/%.com)
+TEST_LIBC_PROC_COMS =							\
+	$(TEST_LIBC_PROC_SRCS:%.c=o/$(MODE)/%)

-TEST_LIBC_PROC_BINS =						\
-	$(TEST_LIBC_PROC_COMS)					\
+TEST_LIBC_PROC_BINS =							\
+	$(TEST_LIBC_PROC_COMS)						\
 	$(TEST_LIBC_PROC_COMS:%=%.dbg)

-TEST_LIBC_PROC_TESTS =						\
-	$(TEST_LIBC_PROC_SRCS_TEST:%.c=o/$(MODE)/%.com.ok)
+TEST_LIBC_PROC_TESTS =							\
+	$(TEST_LIBC_PROC_SRCS_TEST:%.c=o/$(MODE)/%.ok)

-TEST_LIBC_PROC_CHECKS =					\
-	$(TEST_LIBC_PROC_SRCS_TEST:%.c=o/$(MODE)/%.com.runs)
+TEST_LIBC_PROC_CHECKS =							\
+	$(TEST_LIBC_PROC_SRCS_TEST:%.c=o/$(MODE)/%.runs)

-TEST_LIBC_PROC_DIRECTDEPS =					\
-	LIBC_CALLS						\
-	LIBC_FMT						\
-	LIBC_INTRIN						\
-	LIBC_MEM						\
-	LIBC_NEXGEN32E						\
-	LIBC_NT_KERNEL32					\
-	LIBC_RUNTIME						\
-	LIBC_PROC						\
-	LIBC_STR						\
-	LIBC_SYSV						\
-	LIBC_TESTLIB						\
-	LIBC_THREAD						\
-	LIBC_X							\
-	THIRD_PARTY_MUSL					\
+TEST_LIBC_PROC_DIRECTDEPS =						\
+	LIBC_CALLS							\
+	LIBC_FMT							\
+	LIBC_INTRIN							\
+	LIBC_MEM							\
+	LIBC_NEXGEN32E							\
+	LIBC_NT_KERNEL32						\
+	LIBC_RUNTIME							\
+	LIBC_PROC							\
+	LIBC_STR							\
+	LIBC_SYSV							\
+	LIBC_TESTLIB							\
+	LIBC_THREAD							\
+	LIBC_X								\
+	THIRD_PARTY_MUSL						\
 	THIRD_PARTY_TR

-TEST_LIBC_PROC_DEPS :=						\
+TEST_LIBC_PROC_DEPS :=							\
 	$(call uniq,$(foreach x,$(TEST_LIBC_PROC_DIRECTDEPS),$($(x))))

-o/$(MODE)/test/libc/proc/proc.pkg:				\
-		$(TEST_LIBC_PROC_OBJS)				\
+o/$(MODE)/test/libc/proc/proc.pkg:					\
+		$(TEST_LIBC_PROC_OBJS)					\
 		$(foreach x,$(TEST_LIBC_PROC_DIRECTDEPS),$($(x)_A).pkg)

-o/$(MODE)/test/libc/proc/%.com.dbg:				\
-		$(TEST_LIBC_PROC_DEPS)				\
-		o/$(MODE)/test/libc/proc/%.o			\
-		o/$(MODE)/test/libc/proc/proc.pkg		\
-		o/$(MODE)/tool/build/echo.com.zip.o		\
-		$(LIBC_TESTMAIN)				\
-		$(CRT)						\
+o/$(MODE)/test/libc/proc/%.dbg:						\
+		$(TEST_LIBC_PROC_DEPS)					\
+		o/$(MODE)/test/libc/proc/%.o				\
+		o/$(MODE)/test/libc/proc/proc.pkg			\
+		o/$(MODE)/tool/build/echo.zip.o				\
+		$(LIBC_TESTMAIN)					\
+		$(CRT)							\
 		$(APE_NO_MODIFY_SELF)
 	@$(APELINK)

-o/$(MODE)/test/libc/proc/posix_spawn_test.com.runs:		\
+o/$(MODE)/test/libc/proc/posix_spawn_test.runs:				\
 		private QUOTA += -M8192m

-o/$(MODE)/test/libc/proc/posix_spawn_test.com.dbg:		\
-		$(TEST_LIBC_PROC_DEPS)				\
-		o/$(MODE)/test/libc/proc/posix_spawn_test.o	\
-		o/$(MODE)/test/libc/proc/proc.pkg		\
-		o/$(MODE)/tool/build/echo.com.zip.o		\
-		o/$(MODE)/tool/build/cocmd.com.zip.o		\
-		o/$(MODE)/test/libc/mem/prog/life.com.zip.o	\
-		o/$(MODE)/test/libc/mem/prog/life.elf.zip.o	\
-		o/$(MODE)/test/libc/proc/life-pe.com.zip.o	\
-		$(LIBC_TESTMAIN)				\
-		$(CRT)						\
+o/$(MODE)/test/libc/proc/posix_spawn_test.dbg:				\
+		$(TEST_LIBC_PROC_DEPS)					\
+		o/$(MODE)/test/libc/proc/posix_spawn_test.o		\
+		o/$(MODE)/test/libc/proc/proc.pkg			\
+		o/$(MODE)/tool/build/echo.zip.o				\
+		o/$(MODE)/tool/build/cocmd.zip.o			\
+		o/$(MODE)/test/libc/mem/prog/life.zip.o			\
+		o/$(MODE)/test/libc/mem/prog/life.elf.zip.o		\
+		o/$(MODE)/test/libc/proc/life-pe.zip.o			\
+		$(LIBC_TESTMAIN)					\
+		$(CRT)							\
 		$(APE_NO_MODIFY_SELF)
 	@$(APELINK)

-o/$(MODE)/test/libc/proc/system_test.com.dbg:			\
-		$(TEST_LIBC_PROC_DEPS)				\
-		o/$(MODE)/test/libc/proc/system_test.o		\
-		o/$(MODE)/test/libc/proc/proc.pkg		\
-		o/$(MODE)/tool/build/echo.com.zip.o		\
-		o/$(MODE)/tool/build/cocmd.com.zip.o		\
-		o/$(MODE)/tool/build/false.com.zip.o		\
-		$(LIBC_TESTMAIN)				\
-		$(CRT)						\
+o/$(MODE)/test/libc/proc/system_test.dbg:				\
+		$(TEST_LIBC_PROC_DEPS)					\
+		o/$(MODE)/test/libc/proc/system_test.o			\
+		o/$(MODE)/test/libc/proc/proc.pkg			\
+		o/$(MODE)/tool/build/echo.zip.o				\
+		o/$(MODE)/tool/build/cocmd.zip.o			\
+		o/$(MODE)/tool/build/false.zip.o			\
+		$(LIBC_TESTMAIN)					\
+		$(CRT)							\
 		$(APE_NO_MODIFY_SELF)
 	@$(APELINK)

-o/$(MODE)/test/libc/proc/execve_test.com.dbg:				\
+o/$(MODE)/test/libc/proc/execve_test.dbg:				\
 		$(TEST_LIBC_PROC_DEPS)					\
 		o/$(MODE)/test/libc/proc/execve_test.o			\
-		o/$(MODE)/test/libc/calls/life-nomod.com.zip.o		\
-		o/$(MODE)/test/libc/proc/execve_test_prog1.com.zip.o	\
+		o/$(MODE)/test/libc/calls/life-nomod.zip.o		\
+		o/$(MODE)/test/libc/proc/execve_test_prog1.zip.o	\
 		o/$(MODE)/test/libc/mem/prog/life.elf.zip.o		\
 		o/$(MODE)/test/libc/mem/prog/sock.elf.zip.o		\
 		o/$(MODE)/test/libc/proc/proc.pkg			\
@ -98,26 +98,26 @@ o/$(MODE)/test/libc/proc/execve_test.com.dbg:				\
 		$(APE_NO_MODIFY_SELF)
 	@$(APELINK)

-o/$(MODE)/test/libc/proc/fexecve_test.com.dbg:				\
+o/$(MODE)/test/libc/proc/fexecve_test.dbg:				\
 		$(TEST_LIBC_PROC_DEPS)					\
-		o/$(MODE)/test/libc/proc/fexecve_test.o		\
+		o/$(MODE)/test/libc/proc/fexecve_test.o			\
 		o/$(MODE)/test/libc/proc/proc.pkg			\
 		o/$(MODE)/test/libc/mem/prog/life.elf.zip.o		\
-		o/$(MODE)/test/libc/calls/life-nomod.com.zip.o		\
-		o/$(MODE)/test/libc/calls/zipread.com.zip.o		\
+		o/$(MODE)/test/libc/calls/life-nomod.zip.o		\
+		o/$(MODE)/test/libc/calls/zipread.zip.o			\
 		$(LIBC_TESTMAIN)					\
 		$(CRT)							\
 		$(APE_NO_MODIFY_SELF)
 	@$(APELINK)

-o/$(MODE)/test/libc/proc/execve_test_prog1.com.zip.o		\
-o/$(MODE)/test/libc/proc/life-pe.com.zip.o: private		\
-		ZIPOBJ_FLAGS +=					\
+o/$(MODE)/test/libc/proc/execve_test_prog1.zip.o			\
+o/$(MODE)/test/libc/proc/life-pe.zip.o: private				\
+		ZIPOBJ_FLAGS +=						\
 			-B

 $(TEST_LIBC_PROC_OBJS): test/libc/proc/BUILD.mk

 .PHONY: o/$(MODE)/test/libc/proc
-o/$(MODE)/test/libc/proc:					\
-		$(TEST_LIBC_PROC_BINS)				\
+o/$(MODE)/test/libc/proc:						\
+		$(TEST_LIBC_PROC_BINS)					\
 		$(TEST_LIBC_PROC_CHECKS)
--- a/test/libc/proc/execve_test.c
+++ b/test/libc/proc/execve_test.c
@ -51,8 +51,8 @@ void GenBuf(char buf[8], int x) {
 TEST(execve, testArgPassing) {
  int i;
  char ibuf[12], buf[8];
-  const char *prog = "./execve_test_prog1.com";
-  testlib_extract("/zip/execve_test_prog1.com", prog, 0755);
+  const char *prog = "./execve_test_prog1";
+  testlib_extract("/zip/execve_test_prog1", prog, 0755);
  for (i = 0; i < N; ++i) {
    FormatInt32(ibuf, i);
    GenBuf(buf, i);
@ -84,12 +84,12 @@ TEST(execve, ziposAPE) {
  if (IsFreebsd()) return;                        // TODO: fixme on freebsd
  if (IsLinux() && !__is_linux_2_6_23()) return;  // TODO: fixme on old linux
  if (!IsLinux() && !IsFreebsd()) {
-    EXPECT_EQ(-1, execve("/zip/life-nomod.com", (char *const[]){0},
-                         (char *const[]){0}));
+    EXPECT_EQ(
+        -1, execve("/zip/life-nomod", (char *const[]){0}, (char *const[]){0}));
    return;
  }
  SPAWN(fork);
-  execve("/zip/life-nomod.com", (char *const[]){0}, (char *const[]){0});
+  execve("/zip/life-nomod", (char *const[]){0}, (char *const[]){0});
  kprintf("execve failed: %m\n");
  EXITS(42);
 }
--- a/test/libc/proc/fexecve_test.c
+++ b/test/libc/proc/fexecve_test.c
@ -102,9 +102,9 @@ TEST(fexecve, memfd_create) {

 TEST(fexecve, APE) {
  if (!IsLinux() && !IsFreebsd()) return;
-  testlib_extract("/zip/life-nomod.com", "life-nomod.com", 0555);
+  testlib_extract("/zip/life-nomod", "life-nomod", 0555);
  SPAWN(fork);
-  int fd = open("life-nomod.com", O_RDONLY);
+  int fd = open("life-nomod", O_RDONLY);
  ASSERT_NE(-1, fd);
  fexecve(fd, (char *const[]){0}, (char *const[]){0});
  EXITS(42);
@ -112,9 +112,9 @@ TEST(fexecve, APE) {

 TEST(fexecve, APE_cloexec) {
  if (!IsLinux() && !IsFreebsd()) return;
-  testlib_extract("/zip/life-nomod.com", "life-nomod.com", 0555);
+  testlib_extract("/zip/life-nomod", "life-nomod", 0555);
  SPAWN(fork);
-  int fd = open("life-nomod.com", O_RDONLY | O_CLOEXEC);
+  int fd = open("life-nomod", O_RDONLY | O_CLOEXEC);
  ASSERT_NE(-1, fd);
  fexecve(fd, (char *const[]){0}, (char *const[]){0});
  EXITS(42);
@ -132,7 +132,7 @@ TEST(fexecve, zipos) {

 TEST(fexecve, ziposAPE) {
  if (!IsLinux() && !IsFreebsd()) return;
-  int fd = open("/zip/life-nomod.com", O_RDONLY);
+  int fd = open("/zip/life-nomod", O_RDONLY);
  ASSERT_NE(-1, fd);
  SPAWN(fork);
  fexecve(fd, (char *const[]){0}, (char *const[]){0});
@ -143,7 +143,7 @@ TEST(fexecve, ziposAPE) {
 TEST(fexecve, ziposAPEHasZipos) {
  if (1) return; // TODO: fixme
  if (!IsLinux() && !IsFreebsd()) return;
-  int fd = open("/zip/zipread.com", O_RDONLY);
+  int fd = open("/zip/zipread", O_RDONLY);
  ASSERT_NE(-1, fd);
  SPAWN(fork);
  ASSERT_NE(-1, fd);
--- a/test/libc/proc/getpriority_test.c
+++ b/test/libc/proc/getpriority_test.c
@ -29,7 +29,7 @@

 void SetUp(void) {
  if (getpriority(PRIO_PROCESS, getpid()) != 0) {
-    kprintf("getpriority_test.com must be launched at priority zero\n");
+    kprintf("getpriority_test must be launched at priority zero\n");
    exit(0);
  }
 }
--- a/test/libc/proc/life-pe.com
+++ b/test/libc/proc/life-pe.com
--- a/test/libc/proc/posix_spawn_test.c
+++ b/test/libc/proc/posix_spawn_test.c
@ -118,10 +118,10 @@ TEST(posix_spawn, self) {

 TEST(posix_spawn, ape) {
  int ws, pid;
-  char *prog = "./life.com";
+  char *prog = "./life";
  char *args[] = {prog, 0};
  char *envs[] = {0};
-  testlib_extract("/zip/life.com", prog, 0755);
+  testlib_extract("/zip/life", prog, 0755);
  ASSERT_EQ(0, posix_spawn(&pid, prog, NULL, NULL, args, envs));
  ASSERT_NE(-1, waitpid(pid, &ws, 0));
  ASSERT_TRUE(WIFEXITED(ws));
@ -145,9 +145,9 @@ TEST(posix_spawn, elf) {
 TEST(posix_spawn, pipe) {
  char buf[10];
  int p[2], pid, status;
-  const char *pn = "./echo.com";
+  const char *pn = "./echo";
  posix_spawn_file_actions_t fa;
-  testlib_extract("/zip/echo.com", "echo.com", 0755);
+  testlib_extract("/zip/echo", "echo", 0755);
  ASSERT_SYS(0, 0, pipe(p));
  ASSERT_EQ(0, posix_spawn_file_actions_init(&fa));
  ASSERT_EQ(0, posix_spawn_file_actions_addclose(&fa, p[0]));
@ -165,17 +165,17 @@ TEST(posix_spawn, pipe) {
 TEST(posix_spawn, chdir) {
  int ws, pid, p[2];
  char buf[16] = {0};
-  char *args[] = {"cocmd.com", "-c", "cat hello.txt", 0};
+  char *args[] = {"cocmd", "-c", "cat hello.txt", 0};
  char *envs[] = {0};
  posix_spawn_file_actions_t fa;
-  testlib_extract("/zip/cocmd.com", "cocmd.com", 0755);
+  testlib_extract("/zip/cocmd", "cocmd", 0755);
  ASSERT_SYS(0, 0, mkdir("subdir", 0777));
  ASSERT_SYS(0, 0, xbarf("subdir/hello.txt", "hello\n", -1));
  ASSERT_SYS(0, 0, pipe2(p, O_CLOEXEC));
  ASSERT_EQ(0, posix_spawn_file_actions_init(&fa));
  ASSERT_EQ(0, posix_spawn_file_actions_adddup2(&fa, p[1], 1));
  ASSERT_EQ(0, posix_spawn_file_actions_addchdir_np(&fa, "subdir"));
-  ASSERT_EQ(0, posix_spawn(&pid, "../cocmd.com", &fa, 0, args, envs));
+  ASSERT_EQ(0, posix_spawn(&pid, "../cocmd", &fa, 0, args, envs));
  ASSERT_EQ(0, posix_spawn_file_actions_destroy(&fa));
  ASSERT_SYS(0, 0, close(p[1]));
  ASSERT_NE(-1, waitpid(pid, &ws, 0));
@ -201,8 +201,8 @@ TEST(posix_spawn, torture) {
  posix_spawn_file_actions_t fa;
  signal(SIGUSR2, OhMyGoth);
  sigfillset(&allsig);
-  if (!fileexists("echo.com")) {
-    testlib_extract("/zip/echo.com", "echo.com", 0755);
+  if (!fileexists("echo")) {
+    testlib_extract("/zip/echo", "echo", 0755);
  }
  // XXX: NetBSD doesn't seem to let us set the scheduler to itself ;_;
  ASSERT_EQ(0, posix_spawnattr_init(&attr));
@ -220,10 +220,10 @@ TEST(posix_spawn, torture) {
  for (int i = 0; i < n; ++i) {
    char *volatile zzz = malloc(13);
    volatile int fd = open("/dev/null", O_WRONLY);
-    char *args[] = {"./echo.com", NULL};
+    char *args[] = {"./echo", NULL};
    char *envs[] = {NULL};
    raise(SIGUSR2);
-    ASSERT_EQ(0, posix_spawn(&pid, "./echo.com", &fa, &attr, args, envs));
+    ASSERT_EQ(0, posix_spawn(&pid, "./echo", &fa, &attr, args, envs));
    ASSERT_FALSE(__vforked);
    ASSERT_NE(-1, waitpid(pid, &ws, 0));
    EXPECT_FALSE(WIFSIGNALED(ws));
@ -246,7 +246,7 @@ void *Torturer(void *arg) {
 TEST(posix_spawn, agony) {
  int i, n = 4;
  pthread_t *t = gc(malloc(sizeof(pthread_t) * n));
-  testlib_extract("/zip/echo.com", "echo.com", 0755);
+  testlib_extract("/zip/echo", "echo", 0755);
  for (i = 0; i < n; ++i) {
    ASSERT_EQ(0, pthread_create(t + i, 0, Torturer, 0));
  }
@ -264,11 +264,11 @@ TEST(posix_spawn, etxtbsy) {
  if (IsNetbsd()) return;   // they don't appear impacted by this race condition
  if (IsOpenbsd()) return;  // they don't appear impacted by this race condition
  int ws, me, pid, thief;
-  char *prog = "./life.com";
+  char *prog = "./life";
  char *args[] = {prog, 0};
  char *envs[] = {0};
  sigset_t ss, old;
-  testlib_extract("/zip/life.com", prog, 0755);
+  testlib_extract("/zip/life", prog, 0755);
  for (int i = 0; i < 2; ++i) {
    sigemptyset(&ss);
    sigaddset(&ss, SIGUSR1);
@ -382,22 +382,21 @@ BENCH(posix_spawn, bench) {
  creat("tiny64", 0755);
  write(3, kTinyLinuxExit, 128);
  close(3);
-  testlib_extract("/zip/life.com", "life.com", 0755);
+  testlib_extract("/zip/life", "life", 0755);
  testlib_extract("/zip/life.elf", "life.elf", 0755);
-  testlib_extract("/zip/life-pe.com", "life-pe.com", 0755);
+  testlib_extract("/zip/life-pe", "life-pe", 0755);
  kprintf("%s %s (MODE=" MODE
-          " rss=%'zu tiny64=%'zu life.com=%'zu life.elf=%'zu)\n",
+          " rss=%'zu tiny64=%'zu life=%'zu life.elf=%'zu)\n",
          __describe_os(), GetHost(), GetRss(), GetSize("tiny64"),
-          GetSize("life.com"), GetSize("life.elf"));
-  ForkExecveWait("./life.com");
-  EZBENCH2("posix_spawn life.com", donothing, PosixSpawnWait("./life.com"));
-  EZBENCH2("vfork life.com", donothing, VforkExecveWait("./life.com"));
-  EZBENCH2("fork life.com", donothing, ForkExecveWait("./life.com"));
+          GetSize("life"), GetSize("life.elf"));
+  ForkExecveWait("./life");
+  EZBENCH2("posix_spawn life", donothing, PosixSpawnWait("./life"));
+  EZBENCH2("vfork life", donothing, VforkExecveWait("./life"));
+  EZBENCH2("fork life", donothing, ForkExecveWait("./life"));
  if (IsWindows()) {
-    EZBENCH2("posix_spawn life-pe.com", donothing,
-             PosixSpawnWait("./life-pe.com"));
-    EZBENCH2("vfork life-pe.com", donothing, VforkExecveWait("./life-pe.com"));
-    EZBENCH2("fork life-pe.com", donothing, ForkExecveWait("./life-pe.com"));
+    EZBENCH2("posix_spawn life-pe", donothing, PosixSpawnWait("./life-pe"));
+    EZBENCH2("vfork life-pe", donothing, VforkExecveWait("./life-pe"));
+    EZBENCH2("fork life-pe", donothing, ForkExecveWait("./life-pe"));
  }
  if (IsXnu() || IsWindows() || IsMetal()) return;
  EZBENCH2("posix_spawn life.elf", donothing, PosixSpawnWait("./life.elf"));
--- a/test/libc/proc/system_test.c
+++ b/test/libc/proc/system_test.c
@ -21,7 +21,6 @@
 #include "libc/dce.h"
 #include "libc/intrin/kprintf.h"
 #include "libc/mem/gc.h"
-#include "libc/mem/gc.h"
 #include "libc/paths.h"
 #include "libc/runtime/runtime.h"
 #include "libc/stdio/stdio.h"
@ -81,14 +80,14 @@ TEST(system, exit) {
 }

 TEST(system, testStdoutRedirect) {
-  testlib_extract("/zip/echo.com", "echo.com", 0755);
-  ASSERT_EQ(0, system("./echo.com hello >hello.txt"));
+  testlib_extract("/zip/echo", "echo", 0755);
+  ASSERT_EQ(0, system("./echo hello >hello.txt"));
  EXPECT_STREQ("hello\n", gc(xslurp("hello.txt", 0)));
 }

 TEST(system, testStdoutRedirect_withSpacesInFilename) {
-  testlib_extract("/zip/echo.com", "echo.com", 0755);
-  ASSERT_EQ(0, system("./echo.com hello >\"hello there.txt\""));
+  testlib_extract("/zip/echo", "echo", 0755);
+  ASSERT_EQ(0, system("./echo hello >\"hello there.txt\""));
  EXPECT_STREQ("hello\n", gc(xslurp("hello there.txt", 0)));
 }

@ -109,10 +108,10 @@ TEST(system, testStderrRedirect_toStdout) {
  buf[1] = 0;
  buf[2] = 0;
  buf[3] = 0;
-  testlib_extract("/zip/echo.com", "echo.com", 0755);
+  testlib_extract("/zip/echo", "echo", 0755);
  ASSERT_NE(-1, dup2(1, 2));
  success = false;
-  if (GETEXITSTATUS(system("./echo.com aaa 2>&1")) == 0) {
+  if (GETEXITSTATUS(system("./echo aaa 2>&1")) == 0) {
    success = read(pipefd[0], buf, 4) == (4);
  }
  ASSERT_NE(-1, dup2(stderrBack, 2));
@ -176,17 +175,17 @@ TEST(system, kill) {
 }

 TEST(system, exitStatusPreservedAfterSemiColon) {
-  testlib_extract("/zip/false.com", "false.com", 0755);
+  testlib_extract("/zip/false", "false", 0755);
  ASSERT_EQ(1, GETEXITSTATUS(system("false;")));
  ASSERT_EQ(1, GETEXITSTATUS(system("false; ")));
-  ASSERT_EQ(1, GETEXITSTATUS(system("./false.com;")));
-  ASSERT_EQ(1, GETEXITSTATUS(system("./false.com;")));
+  ASSERT_EQ(1, GETEXITSTATUS(system("./false;")));
+  ASSERT_EQ(1, GETEXITSTATUS(system("./false;")));
  CaptureStdout();
  ASSERT_EQ(0, GETEXITSTATUS(system("false; echo $?")));
  char buf[9] = {0};
  ASSERT_EQ(2, read(pipefd[0], buf, 8));
  ASSERT_STREQ("1\n", buf);
-  ASSERT_EQ(0, GETEXITSTATUS(system("./false.com; echo $?")));
+  ASSERT_EQ(0, GETEXITSTATUS(system("./false; echo $?")));
  ASSERT_EQ(2, read(pipefd[0], buf, 8));
  ASSERT_STREQ("1\n", buf);
  ASSERT_EQ(0, GETEXITSTATUS(system("echo -n hi")));
@ -222,17 +221,17 @@ TEST(system, allowsLoneCloseCurlyBrace) {
  ASSERT_EQ(5, read(pipefd[0], buf, 5));
  ASSERT_STREQ("aaa}\n", buf);
  bzero(buf, 6);
-  testlib_extract("/zip/echo.com", "echo.com", 0755);
-  ASSERT_EQ(0, GETEXITSTATUS(system("./echo.com \"aaa\"}")));
+  testlib_extract("/zip/echo", "echo", 0755);
+  ASSERT_EQ(0, GETEXITSTATUS(system("./echo \"aaa\"}")));
  ASSERT_EQ(5, read(pipefd[0], buf, 5));
  ASSERT_STREQ("aaa}\n", buf);
  RestoreStdout();
 }

 TEST(system, glob) {
-  testlib_extract("/zip/echo.com", "echo.com", 0755);
-  ASSERT_EQ(0, system("./ec*.com aaa"));
-  ASSERT_EQ(0, system("./ec?o.com aaa"));
+  testlib_extract("/zip/echo", "echo", 0755);
+  ASSERT_EQ(0, system("./ec* aaa"));
+  ASSERT_EQ(0, system("./ec?o aaa"));
 }

 TEST(system, env) {
@ -253,8 +252,8 @@ TEST(system, env) {
 TEST(system, pipelineCanOutputToFile) {
  ASSERT_EQ(0, GETEXITSTATUS(system("echo hello | tr a-z A-Z >res")));
  ASSERT_STREQ("HELLO\n", gc(xslurp("res", 0)));
-  testlib_extract("/zip/echo.com", "echo.com", 0755);
-  ASSERT_EQ(0, GETEXITSTATUS(system("./echo.com hello | tr a-z A-Z >res")));
+  testlib_extract("/zip/echo", "echo", 0755);
+  ASSERT_EQ(0, GETEXITSTATUS(system("./echo hello | tr a-z A-Z >res")));
  ASSERT_STREQ("HELLO\n", gc(xslurp("res", 0)));
 }

@ -267,11 +266,11 @@ TEST(system, pipelineCanOutputBackToSelf) {
  ASSERT_EQ(0, GETEXITSTATUS(system("echo hello | exec tr a-z A-Z")));
  ASSERT_SYS(0, 6, read(pipefd[0], buf, 16));
  ASSERT_STREQ("HELLO\n", buf);
-  testlib_extract("/zip/echo.com", "echo.com", 0755);
-  ASSERT_EQ(0, GETEXITSTATUS(system("./echo.com hello | tr a-z A-Z")));
+  testlib_extract("/zip/echo", "echo", 0755);
+  ASSERT_EQ(0, GETEXITSTATUS(system("./echo hello | tr a-z A-Z")));
  ASSERT_SYS(0, 6, read(pipefd[0], buf, 16));
  ASSERT_STREQ("HELLO\n", buf);
-  ASSERT_EQ(0, GETEXITSTATUS(system("./echo.com hello | exec tr a-z A-Z")));
+  ASSERT_EQ(0, GETEXITSTATUS(system("./echo hello | exec tr a-z A-Z")));
  ASSERT_SYS(0, 6, read(pipefd[0], buf, 16));
  ASSERT_STREQ("HELLO\n", buf);
  RestoreStdout();
@ -280,10 +279,10 @@ TEST(system, pipelineCanOutputBackToSelf) {
 int system2(const char *);

 BENCH(system, bench) {
-  testlib_extract("/zip/echo.com", "echo.com", 0755);
-  EZBENCH2("system cmd", donothing, system("./echo.com hi >/dev/null"));
+  testlib_extract("/zip/echo", "echo", 0755);
+  EZBENCH2("system cmd", donothing, system("./echo hi >/dev/null"));
  EZBENCH2("systemvpe cmd", donothing,
-           systemvpe("./echo.com", (char *[]){"./echo.com", "hi", 0}, 0));
+           systemvpe("./echo", (char *[]){"./echo", "hi", 0}, 0));
  EZBENCH2("cocmd echo", donothing, system("echo hi >/dev/null"));
  EZBENCH2("cocmd exit", donothing, system("exit"));
 }
--- a/test/libc/release/BUILD.mk
+++ b/test/libc/release/BUILD.mk
@ -14,9 +14,9 @@ o/$(MODE)/test/libc/release/cosmopolitan.zip:			\
 		o/$(MODE)/ape/ape-copy-self.o			\
 		o/$(MODE)/ape/ape-no-modify-self.o		\
 		o/$(MODE)/cosmopolitan.a			\
-		o/$(MODE)/third_party/zip/zip.com
+		o/$(MODE)/third_party/zip/zip
 	@$(COMPILE) -AZIP -T$@					\
-		o/$(MODE)/third_party/zip/zip.com		\
+		o/$(MODE)/third_party/zip/zip			\
 		-b$(TMPDIR) -qj $@				\
 		o/cosmopolitan.h				\
 		o/$(MODE)/ape/ape.lds				\
@ -46,7 +46,7 @@ o/$(MODE)/test/libc/release/smoke.o:					\
 		-Wl,-z,noexecstack					\
 		$<

-o/$(MODE)/test/libc/release/smoke.com.dbg:				\
+o/$(MODE)/test/libc/release/smoke.dbg:					\
 		o/$(MODE)/test/libc/release/smoke.o			\
 		o/$(MODE)/ape/ape.lds					\
 		o/$(MODE)/libc/crt/crt.o				\
@ -67,7 +67,7 @@ o/$(MODE)/test/libc/release/smoke.com.dbg:				\
 		o/$(MODE)/cosmopolitan.a				\
 		-o $@

-o/$(MODE)/test/libc/release/smoke-nms.com.dbg:				\
+o/$(MODE)/test/libc/release/smoke-nms.dbg:				\
 		o/$(MODE)/test/libc/release/smoke.o			\
 		o/$(MODE)/ape/ape.lds					\
 		o/$(MODE)/libc/crt/crt.o				\
@ -88,13 +88,13 @@ o/$(MODE)/test/libc/release/smoke-nms.com.dbg:				\
 		o/$(MODE)/cosmopolitan.a				\
 		-o $@

-o/$(MODE)/test/libc/release/smoke-chibicc.com.dbg:			\
+o/$(MODE)/test/libc/release/smoke-chibicc.dbg:				\
 		o/$(MODE)/test/libc/release/smoke-chibicc.o		\
 		o/$(MODE)/ape/ape.lds					\
 		o/$(MODE)/libc/crt/crt.o				\
 		o/$(MODE)/ape/ape-no-modify-self.o			\
 		o/$(MODE)/cosmopolitan.a				\
-		o/$(MODE)/third_party/chibicc/chibicc.com
+		o/$(MODE)/third_party/chibicc/chibicc
 	@$(COMPILE) -ALD $(LD)						\
 		-static							\
 		-no-pie							\
@ -113,9 +113,9 @@ o/$(MODE)/test/libc/release/smoke-chibicc.com.dbg:			\
 o/$(MODE)/test/libc/release/smoke-chibicc.o:				\
 		test/libc/release/smoke.c				\
 		o/cosmopolitan.h					\
-		o/$(MODE)/third_party/chibicc/chibicc.com
+		o/$(MODE)/third_party/chibicc/chibicc
 	@$(COMPILE) -wACHIBICC						\
-		o/$(MODE)/third_party/chibicc/chibicc.com		\
+		o/$(MODE)/third_party/chibicc/chibicc			\
 		$(CHIBICC_FLAGS)					\
 		-o $@							\
 		-c							\
@ -131,7 +131,7 @@ o/$(MODE)/test/libc/release/smoke-chibicc.o:				\
 		-include o/cosmopolitan.h				\
 		$<

-o/$(MODE)/test/libc/release/smokecxx.com.dbg:				\
+o/$(MODE)/test/libc/release/smokecxx.dbg:				\
 		o/$(MODE)/test/libc/release/smokecxx.o			\
 		o/$(MODE)/ape/ape.lds					\
 		o/$(MODE)/libc/crt/crt.o				\
@ -171,7 +171,7 @@ o/$(MODE)/test/libc/release/smokecxx.o:					\
 		-include o/cosmopolitan.h				\
 		test/libc/release/smokecxx.cc

-o/$(MODE)/test/libc/release/smokeansi.com.dbg:				\
+o/$(MODE)/test/libc/release/smokeansi.dbg:				\
 		o/$(MODE)/test/libc/release/smokeansi.o			\
 		o/$(MODE)/ape/ape.lds					\
 		o/$(MODE)/libc/crt/crt.o				\
@ -216,27 +216,27 @@ o/$(MODE)/test/libc/release/smokeansi.o:				\
 # TODO(jart): Rewrite these shell scripts as C code.
 # o/$(MODE)/test/libc/release/metal.ok:					\
 # 		test/libc/release/metal.sh				\
-# 		o/$(MODE)/examples/hello.com				\
-# 		o/$(MODE)/tool/build/blinkenlights.com.dbg
+# 		o/$(MODE)/examples/hello				\
+# 		o/$(MODE)/tool/build/blinkenlights.dbg
 # 	@$(COMPILE) -ASHTEST -tT$@ $<
 # o/$(MODE)/test/libc/release/emulate.ok:				\
 # 		test/libc/release/emulate.sh				\
-# 		o/$(MODE)/examples/hello.com				\
-# 		o/$(MODE)/tool/build/blinkenlights.com.dbg
+# 		o/$(MODE)/examples/hello				\
+# 		o/$(MODE)/tool/build/blinkenlights.dbg
 # 	@$(COMPILE) -ASHTEST -tT$@ $<

 .PHONY: o/$(MODE)/test/libc/release
 o/$(MODE)/test/libc/release:						\
-		o/$(MODE)/test/libc/release/smoke.com			\
-		o/$(MODE)/test/libc/release/smoke.com.runs		\
-		o/$(MODE)/test/libc/release/smoke-nms.com		\
-		o/$(MODE)/test/libc/release/smoke-nms.com.runs		\
-		o/$(MODE)/test/libc/release/smoke-chibicc.com		\
-		o/$(MODE)/test/libc/release/smoke-chibicc.com.runs	\
-		o/$(MODE)/test/libc/release/smokecxx.com		\
-		o/$(MODE)/test/libc/release/smokecxx.com.runs		\
-		o/$(MODE)/test/libc/release/smokeansi.com		\
-		o/$(MODE)/test/libc/release/smokeansi.com.runs
+		o/$(MODE)/test/libc/release/smoke			\
+		o/$(MODE)/test/libc/release/smoke.runs			\
+		o/$(MODE)/test/libc/release/smoke-nms			\
+		o/$(MODE)/test/libc/release/smoke-nms.runs		\
+		o/$(MODE)/test/libc/release/smoke-chibicc		\
+		o/$(MODE)/test/libc/release/smoke-chibicc.runs		\
+		o/$(MODE)/test/libc/release/smokecxx			\
+		o/$(MODE)/test/libc/release/smokecxx.runs		\
+		o/$(MODE)/test/libc/release/smokeansi			\
+		o/$(MODE)/test/libc/release/smokeansi.runs

 endif
 endif
--- a/test/libc/release/emulate.sh
+++ b/test/libc/release/emulate.sh
@ -9,7 +9,7 @@ if [ "$MODE" = opt ] || [ "$MODE" = optlinux ]; then
 fi

 # smoke test userspace binary emulation
-CMD="o/$MODE/tool/build/blinkenlights.com.dbg o/$MODE/examples/hello.com"
+CMD="o/$MODE/tool/build/blinkenlights.dbg o/$MODE/examples/hello"
 if OUTPUT="$($CMD)"; then
  if [ x"$OUTPUT" = x"hello world" ]; then
    exit 0
--- a/test/libc/release/metal.sh
+++ b/test/libc/release/metal.sh
@ -13,7 +13,7 @@ fi
 $MKDIR o/$MODE/test/libc/release/

 # smoke test booting on bare metal and printing data to serial uart
-CMD="o/$MODE/tool/build/blinkenlights.com.dbg -r o/$MODE/examples/hello.com"
+CMD="o/$MODE/tool/build/blinkenlights.dbg -r o/$MODE/examples/hello"
 if OUTPUT="$($CMD)"; then
  if [ x"$OUTPUT" = x"hello world" ]; then
    exit 0
--- a/test/libc/runtime/BUILD.mk
+++ b/test/libc/runtime/BUILD.mk
@ -10,17 +10,17 @@ TEST_LIBC_RUNTIME_OBJS =						\
 	$(TEST_LIBC_RUNTIME_SRCS:%.c=o/$(MODE)/%.o)

 TEST_LIBC_RUNTIME_COMS =						\
-	$(TEST_LIBC_RUNTIME_SRCS:%.c=o/$(MODE)/%.com)
+	$(TEST_LIBC_RUNTIME_SRCS:%.c=o/$(MODE)/%)

 TEST_LIBC_RUNTIME_BINS =						\
 	$(TEST_LIBC_RUNTIME_COMS)					\
 	$(TEST_LIBC_RUNTIME_COMS:%=%.dbg)

 TEST_LIBC_RUNTIME_TESTS =						\
-	$(TEST_LIBC_RUNTIME_SRCS_TEST:%.c=o/$(MODE)/%.com.ok)
+	$(TEST_LIBC_RUNTIME_SRCS_TEST:%.c=o/$(MODE)/%.ok)

 TEST_LIBC_RUNTIME_CHECKS =						\
-	$(TEST_LIBC_RUNTIME_SRCS_TEST:%.c=o/$(MODE)/%.com.runs)
+	$(TEST_LIBC_RUNTIME_SRCS_TEST:%.c=o/$(MODE)/%.runs)

 TEST_LIBC_RUNTIME_DIRECTDEPS =						\
 	LIBC_CALLS							\
@ -49,7 +49,7 @@ o/$(MODE)/test/libc/runtime/runtime.pkg:				\
 		$(TEST_LIBC_RUNTIME_OBJS)				\
 		$(foreach x,$(TEST_LIBC_RUNTIME_DIRECTDEPS),$($(x)_A).pkg)

-o/$(MODE)/test/libc/runtime/%.com.dbg:					\
+o/$(MODE)/test/libc/runtime/%.dbg:					\
 		$(TEST_LIBC_RUNTIME_DEPS)				\
 		o/$(MODE)/test/libc/mem/prog/life.elf.zip.o		\
 		o/$(MODE)/test/libc/runtime/prog/ftraceasm.txt.zip.o	\
@ -61,7 +61,7 @@ o/$(MODE)/test/libc/runtime/%.com.dbg:					\
 		$(APE_NO_MODIFY_SELF)
 	@$(APELINK)

-o/$(MODE)/test/libc/runtime/ape_test.com.dbg:				\
+o/$(MODE)/test/libc/runtime/ape_test.dbg:				\
 		$(TEST_LIBC_RUNTIME_DEPS)				\
 		o/$(MODE)/test/libc/runtime/ape_test.o			\
 		o/$(MODE)/test/libc/runtime/runtime.pkg			\
@ -74,8 +74,8 @@ $(TEST_LIBC_RUNTIME_OBJS): private					\
 	DEFAULT_CCFLAGS +=						\
 		-fno-builtin

-o/$(MODE)/test/libc/runtime/getenv_test.com.runs:			\
-		o/$(MODE)/test/libc/runtime/getenv_test.com
+o/$(MODE)/test/libc/runtime/getenv_test.runs:				\
+		o/$(MODE)/test/libc/runtime/getenv_test
 	@HELLO=THERE build/runit $@ $<

 o/$(MODE)/test/libc/runtime/itsatrap_test.o: private			\
--- a/test/libc/runtime/getdosargv_test.c
+++ b/test/libc/runtime/getdosargv_test.c
@ -95,9 +95,9 @@ TEST(GetDosArgv, realWorldUsage) {
  size_t size = ARG_MAX / 2;
  char *buf = malloc(size * sizeof(char));
  char **argv = malloc(max * sizeof(char *));
-  EXPECT_EQ(5, GetDosArgv(u"C:\\Users\\jtunn\\printargs.com oh yes yes yes",
-                          buf, size, argv, max));
-  EXPECT_STREQ("C:\\Users\\jtunn\\printargs.com", argv[0]);
+  EXPECT_EQ(5, GetDosArgv(u"C:\\Users\\jtunn\\printargs oh yes yes yes", buf,
+                          size, argv, max));
+  EXPECT_STREQ("C:\\Users\\jtunn\\printargs", argv[0]);
  EXPECT_STREQ("oh", argv[1]);
  EXPECT_STREQ("yes", argv[2]);
  EXPECT_STREQ("yes", argv[3]);
--- a/test/libc/sock/BUILD.mk
+++ b/test/libc/sock/BUILD.mk
@ -6,85 +6,85 @@ PKGS += TEST_LIBC_SOCK
 TEST_LIBC_SOCK_SRCS := $(wildcard test/libc/sock/*.c)
 TEST_LIBC_SOCK_SRCS_TEST = $(filter %_test.c,$(TEST_LIBC_SOCK_SRCS))

-TEST_LIBC_SOCK_OBJS =						\
+TEST_LIBC_SOCK_OBJS =					\
 	$(TEST_LIBC_SOCK_SRCS:%.c=o/$(MODE)/%.o)

-TEST_LIBC_SOCK_COMS =						\
-	$(TEST_LIBC_SOCK_SRCS:%.c=o/$(MODE)/%.com)
+TEST_LIBC_SOCK_COMS =					\
+	$(TEST_LIBC_SOCK_SRCS:%.c=o/$(MODE)/%)

-TEST_LIBC_SOCK_BINS =						\
-	$(TEST_LIBC_SOCK_COMS)					\
+TEST_LIBC_SOCK_BINS =					\
+	$(TEST_LIBC_SOCK_COMS)				\
 	$(TEST_LIBC_SOCK_COMS:%=%.dbg)

-TEST_LIBC_SOCK_TESTS =						\
-	$(TEST_LIBC_SOCK_SRCS_TEST:%.c=o/$(MODE)/%.com.ok)
+TEST_LIBC_SOCK_TESTS =					\
+	$(TEST_LIBC_SOCK_SRCS_TEST:%.c=o/$(MODE)/%.ok)

-TEST_LIBC_SOCK_CHECKS =						\
-	$(TEST_LIBC_SOCK_SRCS_TEST:%.c=o/$(MODE)/%.com.runs)
+TEST_LIBC_SOCK_CHECKS =					\
+	$(TEST_LIBC_SOCK_SRCS_TEST:%.c=o/$(MODE)/%.runs)

-TEST_LIBC_SOCK_DIRECTDEPS =					\
-	LIBC_CALLS						\
-	LIBC_FMT						\
-	LIBC_INTRIN						\
-	LIBC_MEM						\
-	LIBC_NEXGEN32E						\
-	LIBC_PROC						\
-	LIBC_RUNTIME						\
-	LIBC_SOCK						\
-	LIBC_STDIO						\
-	LIBC_STR						\
-	LIBC_SYSV						\
-	LIBC_THREAD						\
-	LIBC_LOG						\
-	LIBC_SYSV_CALLS						\
-	LIBC_TESTLIB						\
-	LIBC_X							\
+TEST_LIBC_SOCK_DIRECTDEPS =				\
+	LIBC_CALLS					\
+	LIBC_FMT					\
+	LIBC_INTRIN					\
+	LIBC_MEM					\
+	LIBC_NEXGEN32E					\
+	LIBC_PROC					\
+	LIBC_RUNTIME					\
+	LIBC_SOCK					\
+	LIBC_STDIO					\
+	LIBC_STR					\
+	LIBC_SYSV					\
+	LIBC_THREAD					\
+	LIBC_LOG					\
+	LIBC_SYSV_CALLS					\
+	LIBC_TESTLIB					\
+	LIBC_X						\
 	TOOL_DECODE_LIB

-TEST_LIBC_SOCK_DEPS :=						\
+TEST_LIBC_SOCK_DEPS :=					\
 	$(call uniq,$(foreach x,$(TEST_LIBC_SOCK_DIRECTDEPS),$($(x))))

-o/$(MODE)/test/libc/sock/sock.pkg:				\
-		$(TEST_LIBC_SOCK_OBJS)				\
+o/$(MODE)/test/libc/sock/sock.pkg:			\
+		$(TEST_LIBC_SOCK_OBJS)			\
 		$(foreach x,$(TEST_LIBC_SOCK_DIRECTDEPS),$($(x)_A).pkg)

-o/$(MODE)/test/libc/sock/%.com.dbg:				\
-		$(TEST_LIBC_SOCK_DEPS)				\
-		o/$(MODE)/test/libc/sock/%.o			\
-		o/$(MODE)/test/libc/sock/sock.pkg		\
-		$(LIBC_TESTMAIN)				\
-		$(CRT)						\
+o/$(MODE)/test/libc/sock/%.dbg:				\
+		$(TEST_LIBC_SOCK_DEPS)			\
+		o/$(MODE)/test/libc/sock/%.o		\
+		o/$(MODE)/test/libc/sock/sock.pkg	\
+		$(LIBC_TESTMAIN)			\
+		$(CRT)					\
 		$(APE_NO_MODIFY_SELF)
 	@$(APELINK)

-o/$(MODE)/test/libc/sock/unix_test.com.runs:			\
+o/$(MODE)/test/libc/sock/unix_test.runs:		\
 		private .PLEDGE = stdio rpath wpath cpath fattr proc unix

-o/$(MODE)/test/libc/sock/connect_test.com.runs			\
-o/$(MODE)/test/libc/sock/recvfrom_test.com.runs			\
-o/$(MODE)/test/libc/sock/nonblock_test.com.runs			\
-o/$(MODE)/test/libc/sock/socket_test.com.runs			\
-o/$(MODE)/test/libc/sock/shutdown_test.com.runs			\
-o/$(MODE)/test/libc/sock/setsockopt_test.com.runs		\
-o/$(MODE)/test/libc/sock/sendfile_test.com.runs			\
-o/$(MODE)/test/libc/sock/poll_test.com.runs			\
-o/$(MODE)/test/libc/sock/pollfd_test.com.runs:			\
+o/$(MODE)/test/libc/sock/connect_test.runs		\
+o/$(MODE)/test/libc/sock/recvfrom_test.runs		\
+o/$(MODE)/test/libc/sock/nonblock_test.runs		\
+o/$(MODE)/test/libc/sock/socket_test.runs		\
+o/$(MODE)/test/libc/sock/shutdown_test.runs		\
+o/$(MODE)/test/libc/sock/setsockopt_test.runs		\
+o/$(MODE)/test/libc/sock/sendfile_test.runs		\
+o/$(MODE)/test/libc/sock/poll_test.runs			\
+o/$(MODE)/test/libc/sock/pollfd_test.runs:		\
 		private .PLEDGE = stdio rpath wpath cpath fattr proc inet

-o/$(MODE)/test/libc/sock/sendrecvmsg_test.com.runs:		\
+o/$(MODE)/test/libc/sock/sendrecvmsg_test.runs:		\
 		private .PLEDGE = stdio rpath wpath cpath fattr proc inet recvfd sendfd

-o/$(MODE)/test/libc/sock/socket_test.com.runs:			\
+o/$(MODE)/test/libc/sock/socket_test.runs:		\
 		private .INTERNET = 1  # todo: ipv6 filtering

-o/$(MODE)/test/libc/sock/recvmsg_test.com.runs:			\
+o/$(MODE)/test/libc/sock/recvmsg_test.runs:		\
 		private .INTERNET = 1  # need to bind to 0.0.0.0
-o/$(MODE)/test/libc/sock/recvmsg_test.com.runs:			\
+o/$(MODE)/test/libc/sock/recvmsg_test.runs:		\
 		private .PLEDGE = stdio rpath wpath cpath fattr proc inet recvfd sendfd

 $(TEST_LIBC_SOCK_OBJS): test/libc/sock/BUILD.mk

 .PHONY: o/$(MODE)/test/libc/sock
-o/$(MODE)/test/libc/sock:					\
-		$(TEST_LIBC_SOCK_BINS)				\
+o/$(MODE)/test/libc/sock:				\
+		$(TEST_LIBC_SOCK_BINS)			\
 		$(TEST_LIBC_SOCK_CHECKS)
--- a/test/libc/stdio/BUILD.mk
+++ b/test/libc/stdio/BUILD.mk
@ -12,17 +12,17 @@ TEST_LIBC_STDIO_OBJS =						\
 	$(TEST_LIBC_STDIO_SRCS:%.c=o/$(MODE)/%.o)

 TEST_LIBC_STDIO_COMS =						\
-	$(TEST_LIBC_STDIO_SRCS:%.c=o/$(MODE)/%.com)
+	$(TEST_LIBC_STDIO_SRCS:%.c=o/$(MODE)/%)

 TEST_LIBC_STDIO_BINS =						\
 	$(TEST_LIBC_STDIO_COMS)					\
 	$(TEST_LIBC_STDIO_COMS:%=%.dbg)

 TEST_LIBC_STDIO_TESTS =						\
-	$(TEST_LIBC_STDIO_SRCS_TEST:%.c=o/$(MODE)/%.com.ok)
+	$(TEST_LIBC_STDIO_SRCS_TEST:%.c=o/$(MODE)/%.ok)

 TEST_LIBC_STDIO_CHECKS =					\
-	$(TEST_LIBC_STDIO_SRCS_TEST:%.c=o/$(MODE)/%.com.runs)
+	$(TEST_LIBC_STDIO_SRCS_TEST:%.c=o/$(MODE)/%.runs)

 TEST_LIBC_STDIO_DIRECTDEPS =					\
 	LIBC_CALLS						\
@ -55,21 +55,21 @@ o/$(MODE)/test/libc/stdio/stdio.pkg:				\
 		$(TEST_LIBC_STDIO_OBJS)				\
 		$(foreach x,$(TEST_LIBC_STDIO_DIRECTDEPS),$($(x)_A).pkg)

-o/$(MODE)/test/libc/stdio/%.com.dbg:				\
+o/$(MODE)/test/libc/stdio/%.dbg:				\
 		$(TEST_LIBC_STDIO_DEPS)				\
 		o/$(MODE)/test/libc/stdio/%.o			\
 		o/$(MODE)/test/libc/stdio/stdio.pkg		\
-		o/$(MODE)/tool/build/echo.com.zip.o		\
+		o/$(MODE)/tool/build/echo.zip.o			\
 		$(LIBC_TESTMAIN)				\
 		$(CRT)						\
 		$(APE_NO_MODIFY_SELF)
 	@$(APELINK)

-o/$(MODE)/test/libc/stdio/popen_test.com.dbg:			\
+o/$(MODE)/test/libc/stdio/popen_test.dbg:			\
 		$(TEST_LIBC_STDIO_DEPS)				\
 		o/$(MODE)/test/libc/stdio/popen_test.o		\
 		o/$(MODE)/test/libc/stdio/stdio.pkg		\
-		o/$(MODE)/tool/build/echo.com.zip.o		\
+		o/$(MODE)/tool/build/echo.zip.o			\
 		$(LIBC_TESTMAIN)				\
 		$(CRT)						\
 		$(APE_NO_MODIFY_SELF)
--- a/test/libc/stdio/dirstream_test.c
+++ b/test/libc/stdio/dirstream_test.c
@ -27,7 +27,6 @@
 #include "libc/limits.h"
 #include "libc/mem/critbit0.h"
 #include "libc/mem/gc.h"
-#include "libc/mem/gc.h"
 #include "libc/mem/mem.h"
 #include "libc/runtime/runtime.h"
 #include "libc/stdio/append.h"
@ -424,7 +423,7 @@ static int walk(const char *fpath,      //

 TEST(dirstream, walk) {
  ASSERT_SYS(0, 0, nftw("/zip", walk, 128, FTW_PHYS | FTW_DEPTH));
-  ASSERT_STREQ("FTW_F  /zip/echo.com\n"
+  ASSERT_STREQ("FTW_F  /zip/echo\n"
               "FTW_F  /zip/libc/testlib/hyperion.txt\n"
               "FTW_F  /zip/libc/testlib/moby.txt\n"
               "FTW_DP /zip/libc/testlib\n"
--- a/test/libc/stdio/popen_test.c
+++ b/test/libc/stdio/popen_test.c
@ -62,8 +62,8 @@ void CheckForFdLeaks(void) {

 TEST(popen, command) {
  char foo[6];
-  testlib_extract("/zip/echo.com", "echo.com", 0755);
-  ASSERT_NE(NULL, (f = popen("./echo.com hello", "r")));
+  testlib_extract("/zip/echo", "echo", 0755);
+  ASSERT_NE(NULL, (f = popen("./echo hello", "r")));
  ASSERT_NE(NULL, fgets(foo, sizeof(foo), f));
  ASSERT_STREQ("hello", foo);
  ASSERT_EQ(0, pclose(f));
@ -142,7 +142,7 @@ void *Worker(void *arg) {
    arg2 = malloc(13);
    FormatInt32(arg1, _rand64());
    FormatInt32(arg2, _rand64());
-    sprintf(cmd, "echo %s; ./echo.com %s", arg1, arg2);
+    sprintf(cmd, "echo %s; ./echo %s", arg1, arg2);
    strcat(arg1, "\n");
    strcat(arg2, "\n");
    ASSERT_NE(NULL, (f = popen(cmd, "r")));
@ -163,7 +163,7 @@ TEST(popen, torture) {
  }
  int i, n = 4;
  pthread_t *t = gc(malloc(sizeof(pthread_t) * n));
-  testlib_extract("/zip/echo.com", "echo.com", 0755);
+  testlib_extract("/zip/echo", "echo", 0755);
  for (i = 0; i < n; ++i) ASSERT_EQ(0, pthread_create(t + i, 0, Worker, 0));
  for (i = 0; i < n; ++i) ASSERT_EQ(0, pthread_join(t[i], 0));
  CheckForFdLeaks();
--- a/test/libc/stdio/zipdir_test.c
+++ b/test/libc/stdio/zipdir_test.c
@ -101,7 +101,7 @@ TEST(zipdir, testListZip) {
  ASSERT_STREQ("..", ent->d_name);
  ASSERT_EQ(DT_DIR, ent->d_type);
  ASSERT_NE(NULL, (ent = readdir(dir)));
-  ASSERT_STREQ("echo.com", ent->d_name);
+  ASSERT_STREQ("echo", ent->d_name);
  ASSERT_EQ(DT_REG, ent->d_type);
  ASSERT_NE(NULL, (ent = readdir(dir)));
  ASSERT_STREQ("libc", ent->d_name);
--- a/test/libc/str/BUILD.mk
+++ b/test/libc/str/BUILD.mk
@ -10,78 +10,78 @@ TEST_LIBC_STR_SRCS = $(TEST_LIBC_STR_SRCS_C) $(TEST_LIBC_STR_SRCS_CC)
 TEST_LIBC_STR_SRCS_TEST_C = $(filter %_test.c,$(TEST_LIBC_STR_FILES))
 TEST_LIBC_STR_SRCS_TEST_CC = $(filter %_test.cc,$(TEST_LIBC_STR_FILES))

-TEST_LIBC_STR_OBJS =							\
-	$(TEST_LIBC_STR_SRCS_C:%.c=o/$(MODE)/%.o)			\
+TEST_LIBC_STR_OBJS =						\
+	$(TEST_LIBC_STR_SRCS_C:%.c=o/$(MODE)/%.o)		\
 	$(TEST_LIBC_STR_SRCS_CC:%.cc=o/$(MODE)/%.o)

-TEST_LIBC_STR_COMS =							\
-	$(TEST_LIBC_STR_SRCS_TEST_C:%.c=o/$(MODE)/%.com)		\
-	$(TEST_LIBC_STR_SRCS_TEST_CC:%.cc=o/$(MODE)/%.com)
+TEST_LIBC_STR_COMS =						\
+	$(TEST_LIBC_STR_SRCS_TEST_C:%.c=o/$(MODE)/%)		\
+	$(TEST_LIBC_STR_SRCS_TEST_CC:%.cc=o/$(MODE)/%)

-TEST_LIBC_STR_BINS =							\
-	$(TEST_LIBC_STR_COMS)						\
+TEST_LIBC_STR_BINS =						\
+	$(TEST_LIBC_STR_COMS)					\
 	$(TEST_LIBC_STR_COMS:%=%.dbg)

-TEST_LIBC_STR_TESTS =							\
-	$(TEST_LIBC_STR_SRCS_TEST_C:%.c=o/$(MODE)/%.com.ok)		\
-	$(TEST_LIBC_STR_SRCS_TEST_CC:%.cc=o/$(MODE)/%.com.ok)
+TEST_LIBC_STR_TESTS =						\
+	$(TEST_LIBC_STR_SRCS_TEST_C:%.c=o/$(MODE)/%.ok)		\
+	$(TEST_LIBC_STR_SRCS_TEST_CC:%.cc=o/$(MODE)/%.ok)

-TEST_LIBC_STR_CHECKS =							\
-	$(TEST_LIBC_STR_SRCS_TEST_C:%.c=o/$(MODE)/%.com.runs)		\
-	$(TEST_LIBC_STR_SRCS_TEST_CC:%.cc=o/$(MODE)/%.com.runs)
+TEST_LIBC_STR_CHECKS =						\
+	$(TEST_LIBC_STR_SRCS_TEST_C:%.c=o/$(MODE)/%.runs)	\
+	$(TEST_LIBC_STR_SRCS_TEST_CC:%.cc=o/$(MODE)/%.runs)

-TEST_LIBC_STR_DIRECTDEPS =						\
-	LIBC_CALLS							\
-	LIBC_FMT							\
-	LIBC_INTRIN							\
-	LIBC_LOG							\
-	LIBC_TINYMATH							\
-	LIBC_MEM							\
-	LIBC_NEXGEN32E							\
-	LIBC_RUNTIME							\
-	LIBC_STDIO							\
-	LIBC_STR							\
-	LIBC_SYSV							\
-	LIBC_SYSV_CALLS							\
-	LIBC_TESTLIB							\
-	LIBC_X								\
-	THIRD_PARTY_COMPILER_RT						\
-	THIRD_PARTY_MBEDTLS						\
-	THIRD_PARTY_REGEX						\
-	THIRD_PARTY_ZLIB						\
-	THIRD_PARTY_LIBCXX						\
-	THIRD_PARTY_SMALLZ4						\
+TEST_LIBC_STR_DIRECTDEPS =					\
+	LIBC_CALLS						\
+	LIBC_FMT						\
+	LIBC_INTRIN						\
+	LIBC_LOG						\
+	LIBC_TINYMATH						\
+	LIBC_MEM						\
+	LIBC_NEXGEN32E						\
+	LIBC_RUNTIME						\
+	LIBC_STDIO						\
+	LIBC_STR						\
+	LIBC_SYSV						\
+	LIBC_SYSV_CALLS						\
+	LIBC_TESTLIB						\
+	LIBC_X							\
+	THIRD_PARTY_COMPILER_RT					\
+	THIRD_PARTY_MBEDTLS					\
+	THIRD_PARTY_REGEX					\
+	THIRD_PARTY_ZLIB					\
+	THIRD_PARTY_LIBCXX					\
+	THIRD_PARTY_SMALLZ4					\
 	THIRD_PARTY_VQSORT

-TEST_LIBC_STR_DEPS :=							\
+TEST_LIBC_STR_DEPS :=						\
 	$(call uniq,$(foreach x,$(TEST_LIBC_STR_DIRECTDEPS),$($(x))))

-o/$(MODE)/test/libc/str/str.pkg:					\
-		$(TEST_LIBC_STR_OBJS)					\
+o/$(MODE)/test/libc/str/str.pkg:				\
+		$(TEST_LIBC_STR_OBJS)				\
 		$(foreach x,$(TEST_LIBC_STR_DIRECTDEPS),$($(x)_A).pkg)

-o/$(MODE)/test/libc/str/tpenc_test.o: private				\
-		CFLAGS +=						\
+o/$(MODE)/test/libc/str/tpenc_test.o: private			\
+		CFLAGS +=					\
 			$(TRADITIONAL)

-o/$(MODE)/test/libc/str/%.com.dbg:					\
-		$(TEST_LIBC_STR_DEPS)					\
-		o/$(MODE)/test/libc/str/%.o				\
-		o/$(MODE)/test/libc/str/str.pkg				\
-		$(LIBC_TESTMAIN)					\
-		$(CRT)							\
+o/$(MODE)/test/libc/str/%.dbg:					\
+		$(TEST_LIBC_STR_DEPS)				\
+		o/$(MODE)/test/libc/str/%.o			\
+		o/$(MODE)/test/libc/str/str.pkg			\
+		$(LIBC_TESTMAIN)				\
+		$(CRT)						\
 		$(APE_NO_MODIFY_SELF)
 	@$(APELINK)

-$(TEST_LIBC_STR_OBJS): private						\
-		DEFAULT_CCFLAGS +=					\
+$(TEST_LIBC_STR_OBJS): private					\
+		DEFAULT_CCFLAGS +=				\
 			-fno-builtin

-o/$(MODE)/test/libc/str/memmove_test.o: private				\
-		CFLAGS +=						\
+o/$(MODE)/test/libc/str/memmove_test.o: private			\
+		CFLAGS +=					\
 			-O2 -D_FORTIFY_SOURCE=2

 .PHONY: o/$(MODE)/test/libc/str
-o/$(MODE)/test/libc/str:						\
-		$(TEST_LIBC_STR_BINS)					\
+o/$(MODE)/test/libc/str:					\
+		$(TEST_LIBC_STR_BINS)				\
 		$(TEST_LIBC_STR_CHECKS)
--- a/test/libc/str/regex_test.c
+++ b/test/libc/str/regex_test.c
@ -38,7 +38,7 @@ TEST(regex, testDns) {
  regex_t rx;
  EXPECT_EQ(REG_OK, regcomp(&rx, "^[-._0-9A-Za-z]*$", REG_EXTENDED));
  EXPECT_EQ(REG_OK, regexec(&rx, "", 0, NULL, 0));
-  EXPECT_EQ(REG_OK, regexec(&rx, "foo.com", 0, NULL, 0));
+  EXPECT_EQ(REG_OK, regexec(&rx, "foo", 0, NULL, 0));
  EXPECT_EQ(REG_NOMATCH, regexec(&rx, "bar@example", 0, NULL, 0));
  regfree(&rx);
 }
@ -96,16 +96,16 @@ TEST(regex, testUnicodeCharacterClass) {
 void A(void) {
  regex_t rx;
  regcomp(&rx, "^[-._0-9A-Za-z]*$", REG_EXTENDED);
-  regexec(&rx, "foo.com", 0, NULL, 0);
+  regexec(&rx, "foo", 0, NULL, 0);
  regfree(&rx);
 }
 void B(regex_t *rx) {
-  regexec(rx, "foo.com", 0, NULL, 0);
+  regexec(rx, "foo", 0, NULL, 0);
 }
 void C(void) {
  regex_t rx;
  regcomp(&rx, "^[-._0-9A-Za-z]*$", 0);
-  regexec(&rx, "foo.com", 0, NULL, 0);
+  regexec(&rx, "foo", 0, NULL, 0);
  regfree(&rx);
 }
 void D(regex_t *rx, regmatch_t *m) {
--- a/test/libc/thread/BUILD.mk
+++ b/test/libc/thread/BUILD.mk
@ -16,17 +16,17 @@ TEST_LIBC_THREAD_OBJS =					\
 	$(TEST_LIBC_THREAD_SRCS_CC:%.cc=o/$(MODE)/%.o)

 TEST_LIBC_THREAD_COMS =					\
-	$(TEST_LIBC_THREAD_OBJS:%.o=%.com)
+	$(TEST_LIBC_THREAD_OBJS:%.o=%)

 TEST_LIBC_THREAD_BINS =					\
 	$(TEST_LIBC_THREAD_COMS)			\
 	$(TEST_LIBC_THREAD_COMS:%=%.dbg)

 TEST_LIBC_THREAD_TESTS =				\
-	$(TEST_LIBC_THREAD_OBJS:%.o=%.com.ok)
+	$(TEST_LIBC_THREAD_OBJS:%.o=%.ok)

 TEST_LIBC_THREAD_CHECKS =				\
-	$(TEST_LIBC_THREAD_OBJS:%.o=%.com.runs)
+	$(TEST_LIBC_THREAD_OBJS:%.o=%.runs)

 TEST_LIBC_THREAD_DIRECTDEPS =				\
 	LIBC_CALLS					\
@ -58,7 +58,7 @@ o/$(MODE)/test/libc/thread/thread.pkg:			\
 		$(TEST_LIBC_THREAD_OBJS)		\
 		$(foreach x,$(TEST_LIBC_THREAD_DIRECTDEPS),$($(x)_A).pkg)

-o/$(MODE)/test/libc/thread/%.com.dbg:			\
+o/$(MODE)/test/libc/thread/%.dbg:			\
 		$(TEST_LIBC_THREAD_DEPS)		\
 		o/$(MODE)/test/libc/thread/%.o		\
 		o/$(MODE)/test/libc/thread/thread.pkg	\
@ -67,7 +67,7 @@ o/$(MODE)/test/libc/thread/%.com.dbg:			\
 		$(APE_NO_MODIFY_SELF)
 	@$(APELINK)

-o/$(MODE)/test/libc/thread/pthread_kill_test.com.runs:	\
+o/$(MODE)/test/libc/thread/pthread_kill_test.runs:	\
 		private .PLEDGE = stdio rpath wpath cpath fattr proc inet

 .PHONY: o/$(MODE)/test/libc/thread
--- a/test/libc/time/BUILD.mk
+++ b/test/libc/time/BUILD.mk
@ -11,11 +11,11 @@ TEST_LIBC_TIME_OBJS =					\
 	$(TEST_LIBC_TIME_SRCS:%.c=o/$(MODE)/%.o)

 TEST_LIBC_TIME_COMS =					\
-	$(TEST_LIBC_TIME_SRCS:%.c=o/$(MODE)/%.com)
+	$(TEST_LIBC_TIME_SRCS:%.c=o/$(MODE)/%)

-TEST_LIBC_TIME_TESTS = $(TEST_LIBC_TIME_SRCS_TEST:%.c=o/$(MODE)/%.com.ok)
+TEST_LIBC_TIME_TESTS = $(TEST_LIBC_TIME_SRCS_TEST:%.c=o/$(MODE)/%.ok)
 TEST_LIBC_TIME_CHECKS =					\
-	$(TEST_LIBC_TIME_SRCS_TEST:%.c=o/$(MODE)/%.com.runs)
+	$(TEST_LIBC_TIME_SRCS_TEST:%.c=o/$(MODE)/%.runs)

 TEST_LIBC_TIME_DIRECTDEPS =				\
 	LIBC_CALLS					\
@ -36,7 +36,7 @@ o/$(MODE)/test/libc/time/time.pkg:			\
 		$(TEST_LIBC_TIME_OBJS)			\
 		$(foreach x,$(TEST_LIBC_TIME_DIRECTDEPS),$($(x)_A).pkg)

-o/$(MODE)/test/libc/time/%.com.dbg:			\
+o/$(MODE)/test/libc/time/%.dbg:				\
 		$(TEST_LIBC_TIME_DEPS)			\
 		o/$(MODE)/test/libc/time/%.o		\
 		o/$(MODE)/test/libc/time/time.pkg	\
--- a/test/libc/tinymath/BUILD.mk
+++ b/test/libc/tinymath/BUILD.mk
@ -10,17 +10,17 @@ TEST_LIBC_TINYMATH_OBJS =					\
 	$(TEST_LIBC_TINYMATH_SRCS:%.c=o/$(MODE)/%.o)

 TEST_LIBC_TINYMATH_COMS =					\
-	$(TEST_LIBC_TINYMATH_SRCS:%.c=o/$(MODE)/%.com)
+	$(TEST_LIBC_TINYMATH_SRCS:%.c=o/$(MODE)/%)

 TEST_LIBC_TINYMATH_BINS =					\
 	$(TEST_LIBC_TINYMATH_COMS)				\
 	$(TEST_LIBC_TINYMATH_COMS:%=%.dbg)

 TEST_LIBC_TINYMATH_TESTS =					\
-	$(TEST_LIBC_TINYMATH_SRCS_TEST:%.c=o/$(MODE)/%.com.ok)
+	$(TEST_LIBC_TINYMATH_SRCS_TEST:%.c=o/$(MODE)/%.ok)

 TEST_LIBC_TINYMATH_CHECKS =					\
-	$(TEST_LIBC_TINYMATH_SRCS_TEST:%.c=o/$(MODE)/%.com.runs)
+	$(TEST_LIBC_TINYMATH_SRCS_TEST:%.c=o/$(MODE)/%.runs)

 TEST_LIBC_TINYMATH_DIRECTDEPS =					\
 	LIBC_CALLS						\
@ -47,7 +47,7 @@ o/$(MODE)/test/libc/tinymath/tinymath.pkg:			\
 		$(TEST_LIBC_TINYMATH_OBJS)			\
 		$(foreach x,$(TEST_LIBC_TINYMATH_DIRECTDEPS),$($(x)_A).pkg)

-o/$(MODE)/test/libc/tinymath/%.com.dbg:				\
+o/$(MODE)/test/libc/tinymath/%.dbg:				\
 		$(TEST_LIBC_TINYMATH_DEPS)			\
 		o/$(MODE)/test/libc/tinymath/%.o		\
 		o/$(MODE)/test/libc/tinymath/tinymath.pkg	\
--- a/test/libc/x/BUILD.mk
+++ b/test/libc/x/BUILD.mk
@ -10,17 +10,17 @@ TEST_LIBC_X_OBJS =				\
 	$(TEST_LIBC_X_SRCS:%.c=o/$(MODE)/%.o)

 TEST_LIBC_X_COMS =				\
-	$(TEST_LIBC_X_SRCS:%.c=o/$(MODE)/%.com)
+	$(TEST_LIBC_X_SRCS:%.c=o/$(MODE)/%)

 TEST_LIBC_X_BINS =				\
 	$(TEST_LIBC_X_COMS)			\
 	$(TEST_LIBC_X_COMS:%=%.dbg)

 TEST_LIBC_X_TESTS =				\
-	$(TEST_LIBC_X_SRCS_TEST:%.c=o/$(MODE)/%.com.ok)
+	$(TEST_LIBC_X_SRCS_TEST:%.c=o/$(MODE)/%.ok)

 TEST_LIBC_X_CHECKS =				\
-	$(TEST_LIBC_X_SRCS_TEST:%.c=o/$(MODE)/%.com.runs)
+	$(TEST_LIBC_X_SRCS_TEST:%.c=o/$(MODE)/%.runs)

 TEST_LIBC_X_DIRECTDEPS =			\
 	LIBC_CALLS				\
@ -45,7 +45,7 @@ o/$(MODE)/test/libc/x/x.pkg:			\
 		$(TEST_LIBC_X_OBJS)		\
 		$(foreach x,$(TEST_LIBC_X_DIRECTDEPS),$($(x)_A).pkg)

-o/$(MODE)/test/libc/x/%.com.dbg:		\
+o/$(MODE)/test/libc/x/%.dbg:			\
 		$(TEST_LIBC_X_DEPS)		\
 		o/$(MODE)/test/libc/x/%.o	\
 		o/$(MODE)/test/libc/x/x.pkg	\
--- a/test/libc/xed/BUILD.mk
+++ b/test/libc/xed/BUILD.mk
@ -56,17 +56,17 @@ TEST_LIBC_XED_OBJS =						\
 	$(TEST_LIBC_XED_SRCS:%.c=o/$(MODE)/%.o)

 TEST_LIBC_XED_COMS =						\
-	$(TEST_LIBC_XED_SRCS:%.c=o/$(MODE)/%.com)
+	$(TEST_LIBC_XED_SRCS:%.c=o/$(MODE)/%)

 TEST_LIBC_XED_BINS =						\
 	$(TEST_LIBC_XED_COMS)					\
 	$(TEST_LIBC_XED_COMS:%=%.dbg)

 TEST_LIBC_XED_TESTS =						\
-	$(TEST_LIBC_XED_SRCS:%.c=o/$(MODE)/%.com.ok)
+	$(TEST_LIBC_XED_SRCS:%.c=o/$(MODE)/%.ok)

 TEST_LIBC_XED_CHECKS =						\
-	$(TEST_LIBC_XED_SRCS:%.c=o/$(MODE)/%.com.runs)
+	$(TEST_LIBC_XED_SRCS:%.c=o/$(MODE)/%.runs)

 TEST_LIBC_XED_DIRECTDEPS =					\
 	LIBC_INTRIN						\
@ -85,7 +85,7 @@ o/$(MODE)/test/libc/xed/xed.pkg:				\
 		$(TEST_LIBC_XED_OBJS)				\
 		$(foreach x,$(TEST_LIBC_XED_DIRECTDEPS),$($(x)_A).pkg)

-o/$(MODE)/test/libc/xed/%.com.dbg:				\
+o/$(MODE)/test/libc/xed/%.dbg:					\
 		$(TEST_LIBC_XED_DEPS)				\
 		o/$(MODE)/test/libc/xed/%.o			\
 		o/$(MODE)/test/libc/xed/xed.pkg			\