Refactor some code

- Write tests for cthreads
- Fix bugs in pe2.com tool
- Fix ASAN issue with GetDosEnviron()
- Consolidate the cthread header files
- Some code size optimizations for MODE=
- Attempted to squash a tls linker warning
- Attempted to get futexes working on FreeBSD

libc/log/log.mk

@@ -59,8 +59,8 @@ $(LIBC_LOG_A).pkg:					\
 		$(LIBC_LOG_A_OBJS)			\
 		$(foreach x,$(LIBC_LOG_A_DIRECTDEPS),$($(x)_A).pkg)
 
-o/$(MODE)/libc/log/backtrace2.greg.o			\
-o/$(MODE)/libc/log/backtrace3.greg.o:			\
+o/$(MODE)/libc/log/backtrace2.o				\
+o/$(MODE)/libc/log/backtrace3.o:			\
 		OVERRIDE_CFLAGS +=			\
 			-fno-sanitize=all
 
@@ -68,10 +68,7 @@ o/$(MODE)/libc/log/checkfail.o:				\
 		OVERRIDE_CFLAGS +=			\
 			-mgeneral-regs-only
 
-o/$(MODE)/libc/log/restoretty.greg.o			\
 o/$(MODE)/libc/log/attachdebugger.o			\
-o/$(MODE)/libc/log/backtrace2.o				\
-o/$(MODE)/libc/log/backtrace3.o				\
 o/$(MODE)/libc/log/checkaligned.o			\
 o/$(MODE)/libc/log/checkfail.o				\
 o/$(MODE)/libc/log/checkfail_ndebug.o			\

libc/log/restoretty.c

@@ -25,6 +25,7 @@
 #include "libc/errno.h"
 #include "libc/log/color.internal.h"
 #include "libc/log/internal.h"
+#include "libc/log/libfatal.internal.h"
 #include "libc/runtime/internal.h"
 #include "libc/sysv/consts/termios.h"
 
@@ -60,7 +61,7 @@ void __restore_tty(void) {
   int e;
   if (__isrestorable && !__isworker && !__nocolor) {
     e = errno;
-    sys_write(0, ANSI_RESTORE, strlen(ANSI_RESTORE));
+    sys_write(0, ANSI_RESTORE, __strlen(ANSI_RESTORE));
     sys_ioctl(0, TCSETSF, &__oldtermios);
     errno = e;
   }