Clean up more code

- Found some bugs in LLVM compiler-rt library
- The useless LIBC_STUBS package is now deleted
- Improve the overflow checking story even further
- Get chibicc tests working in MODE=dbg mode again
- The libc/isystem/ headers now have correctly named guards

libc/calls/calls.h

@@ -40,6 +40,8 @@
 #define SIG_DFL ((void (*)(int))0)
 #define SIG_IGN ((void (*)(int))1)
 
+#define CLOCKS_PER_SEC 1000000L
+
 #define MAP_FAILED ((void *)-1)
 
 #define WCOREDUMP(s)    (128 & (s))
@@ -174,6 +176,8 @@ int usleep(unsigned);
 int vfork(void) returnstwice;
 int wait(int *);
 int waitpid(int, int *, int);
+int64_t clock(void);
+int64_t time(int64_t *);
 ssize_t copy_file_range(int, long *, int, long *, size_t, unsigned);
 ssize_t lseek(int, int64_t, int);
 ssize_t pread(int, void *, size_t, int64_t);
@@ -183,10 +187,12 @@ ssize_t readlink(const char *, char *, size_t);
 ssize_t readlinkat(int, const char *, char *, size_t);
 ssize_t splice(int, int64_t *, int, int64_t *, size_t, unsigned);
 ssize_t write(int, const void *, size_t);
+unsigned alarm(unsigned);
 unsigned getegid(void) nosideeffect;
 unsigned geteuid(void) nosideeffect;
 unsigned getgid(void) nosideeffect;
 unsigned getuid(void) libcesque;
+unsigned sleep(unsigned);
 unsigned umask(unsigned);
 void sync(void);
 

libc/calls/calls.mk

@@ -45,13 +45,12 @@ LIBC_CALLS_A_DIRECTDEPS =				\
 	LIBC_NT_KERNEL32				\
 	LIBC_NT_NTDLL					\
 	LIBC_NT_PDH					\
-	LIBC_NT_PSAPI					\
 	LIBC_NT_POWRPROF				\
+	LIBC_NT_PSAPI					\
 	LIBC_NT_WS2_32					\
 	LIBC_STR					\
-	LIBC_STUBS					\
-	LIBC_SYSV_CALLS					\
 	LIBC_SYSV					\
+	LIBC_SYSV_CALLS					\
 	THIRD_PARTY_COMPILER_RT
 
 LIBC_CALLS_A_DEPS :=					\

libc/calls/copy.c

@@ -18,6 +18,7 @@
 ╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/calls/calls.h"
 #include "libc/macros.internal.h"
+#include "libc/runtime/runtime.h"
 
 /**
  * Copies data between file descriptors the old fashioned way.
@@ -43,7 +44,7 @@ ssize_t copyfd(int in, int out, size_t n) {
     if (dw != dr) {
       // POSIX requires atomic IO up to PIPE_BUF
       // The minimum permissible PIPE_BUF is 512
-      __builtin_trap();
+      abort();
     }
   }
   return i;

libc/calls/now.c

@@ -33,6 +33,8 @@
 #include "libc/thread/tls.h"
 #include "libc/time/time.h"
 
+// TODO(jart): DELETE
+
 static clock_gettime_f *__gettime;
 
 static struct Now {

libc/calls/oldbench.c

@@ -31,6 +31,8 @@
 #include "libc/thread/tls.h"
 #include "libc/time/time.h"
 
+// TODO(jart): DELETE
+
 static struct Now {
   bool once;
   uint64_t k0;

libc/calls/weirdtypes.h

@@ -6,44 +6,44 @@
  * @fileoverview Types we'd prefer hadn't been invented.
  */
 
-#define blkcnt_t      int64_t
-#define cc_t          uint8_t
-#define clock_t       int64_t  /* uint64_t on xnu */
-#define dev_t         uint64_t /* int32_t on xnu */
-#define fsblkcnt_t    uint64_t
-#define fsfilcnt_t    int64_t /* uint32_t on xnu */
-#define gid_t         uint32_t
-#define id_t          uint32_t /* int32_t on linux/freebsd/etc. */
-#define in_addr_t     uint32_t
-#define in_addr_t     uint32_t
-#define in_port_t     uint16_t
-#define ino_t         uint64_t
-#define key_t         int32_t
-#define loff_t        int64_t
-#define mode_t        uint32_t /* uint16_t on xnu */
-#define nfds_t        uint64_t
-#define off_t         int64_t
-#define pid_t         int32_t
-#define register_t    int64_t
-#define sa_family_t   uint16_t /* bsd:uint8_t */
-#define socklen_t     uint32_t
-#define speed_t       uint32_t
-#define suseconds_t   int64_t  /* int32_t on xnu */
-#define useconds_t    uint64_t /* uint32_t on xnu */
-#define syscall_arg_t int64_t  /* uint64_t on xnu */
-#define tcflag_t      uint32_t
-#define time_t        int64_t
-#define timer_t       void*
-#define uid_t         uint32_t
-#define rlim_t        uint64_t /* int64_t on bsd */
-#define clockid_t     int32_t
+typedef int64_t blkcnt_t;
+typedef uint8_t cc_t;
+typedef int64_t clock_t; /* uint64_t on xnu */
+typedef uint64_t dev_t;  /* int32_t on xnu */
+typedef uint64_t fsblkcnt_t;
+typedef int64_t fsfilcnt_t; /* uint32_t on xnu */
+typedef uint32_t gid_t;
+typedef uint32_t id_t; /* int32_t on linux/freebsd/etc. */
+typedef uint32_t in_addr_t;
+typedef uint32_t in_addr_t;
+typedef uint16_t in_port_t;
+typedef uint64_t ino_t;
+typedef int32_t key_t;
+typedef int64_t loff_t;
+typedef uint32_t mode_t; /* uint16_t on xnu */
+typedef uint64_t nfds_t;
+typedef int64_t off_t;
+typedef int32_t pid_t;
+typedef int64_t register_t;
+typedef uint16_t sa_family_t; /* bsd:uint8_t */
+typedef uint32_t socklen_t;
+typedef uint32_t speed_t;
+typedef int64_t suseconds_t;   /* int32_t on xnu */
+typedef uint64_t useconds_t;   /* uint32_t on xnu */
+typedef int64_t syscall_arg_t; /* uint64_t on xnu */
+typedef uint32_t tcflag_t;
+typedef int64_t time_t;
+typedef void *timer_t;
+typedef uint32_t uid_t;
+typedef uint64_t rlim_t; /* int64_t on bsd */
+typedef int32_t clockid_t;
 
 #ifdef __x86_64__
-#define blksize_t int64_t /* int32_t on xnu */
-#define nlink_t   uint64_t
+typedef int64_t blksize_t; /* int32_t on xnu */
+typedef uint64_t nlink_t;
 #elif defined(__aarch64__)
-#define blksize_t int32_t
-#define nlink_t   uint32_t /* uint16_t on xnu */
+typedef int32_t blksize_t;
+typedef uint32_t nlink_t; /* uint16_t on xnu */
 #endif
 
 #define TIME_T_MAX __INT64_MAX__