[libc][musl] support arm-linux-musleabi toolchain

目前基本功能已经可以在QEMU上跑起来，但是pthread和内核signal选中会报冲突。先合并一版本，后续解决这些问题。

components/libc/compilers/common/include/sys/select.h

@@ -12,7 +12,7 @@
 #ifndef __SYS_SELECT_H__
 #define __SYS_SELECT_H__
 
-#include <rtthread.h>
+#include <rtconfig.h>
 #include <sys/types.h>
 #include <sys/time.h>
 

components/libc/compilers/common/include/sys/signal.h

@@ -14,12 +14,11 @@
 
 #ifdef __cplusplus
 extern "C" {
-#endif
+#endif /* __cplusplus */
 
 #include <stdint.h>
 #include <sys/types.h>
 
-
 /* sigev_notify values
    NOTE: P1003.1c/D10, p. 34 adds SIGEV_THREAD.  */
 
@@ -54,7 +53,6 @@ struct siginfo
 {
     uint16_t si_signo;
     uint16_t si_code;
-
     union sigval si_value;
 };
 typedef struct siginfo siginfo_t;
@@ -216,17 +214,16 @@ int sigaction(int signum, const struct sigaction *act, struct sigaction *oldact)
 #define SIGUSR2 31  /* user defined signal 2 */
 #define NSIG    32      /* signal 0 implied */
 
-#ifndef _SIGNAL_H_
+#if defined(RT_USING_NEWLIBC)
 /* Some applications take advantage of the fact that <sys/signal.h>
  * and <signal.h> are equivalent in glibc.  Allow for that here.  */
 #include <signal.h>
-#endif
-
-#endif
+#endif /* defined(RT_USING_NEWLIBC) */
+#endif /* __ARMCC_VERSION */
 
 #ifdef __cplusplus
 }
-#endif
+#endif /* __cplusplus */
 
-#endif
+#endif /* __SYS_SIGNAL_H__ */
 

components/libc/compilers/common/include/sys/time.h

@@ -22,7 +22,7 @@ typedef __time64_t time_t;
 
 #ifdef __cplusplus
 extern "C" {
-#endif
+#endif /* __cplusplus */
 
 #undef CLOCKS_PER_SEC
 #define CLOCKS_PER_SEC RT_TICK_PER_SECOND
@@ -79,22 +79,21 @@ int stime(const time_t *t);
 time_t timegm(struct tm * const t);
 int gettimeofday(struct timeval *tv, struct timezone *tz);
 int settimeofday(const struct timeval *tv, const struct timezone *tz);
-#if defined(__ARMCC_VERSION) || defined (__ICCARM__)
+
+#if defined(__ARMCC_VERSION) || defined (__ICCARM__) || defined(_WIN32)
 struct tm *gmtime_r(const time_t *timep, struct tm *r);
-struct tm* localtime_r(const time_t* t, struct tm* r);
 char* asctime_r(const struct tm *t, char *buf);
 char *ctime_r(const time_t * tim_p, char * result);
-#elif defined(_WIN32)
-struct tm* gmtime_r(const time_t* timep, struct tm* r);
-struct tm* gmtime(const time_t* t);
 struct tm* localtime_r(const time_t* t, struct tm* r);
+#endif /* defined(__ARMCC_VERSION) || defined (__ICCARM__) || defined(_WIN32) */
+
+#ifdef _WIN32
+struct tm* gmtime(const time_t* t);
 struct tm* localtime(const time_t* t);
 time_t mktime(struct tm* const t);
-char* asctime_r(const struct tm* t, char* buf);
-char* ctime_r(const time_t* tim_p, char* result);
 char* ctime(const time_t* tim_p);
 time_t time(time_t* t);
-#endif
+#endif /* _WIN32 */
 
 #ifdef RT_USING_POSIX_DELAY
 int nanosleep(const struct timespec *rqtp, struct timespec *rmtp);
@@ -112,20 +111,21 @@ int nanosleep(const struct timespec *rqtp, struct timespec *rmtp);
 
 #ifndef CLOCK_REALTIME
 #define CLOCK_REALTIME      1
-#endif
+#endif /* CLOCK_REALTIME */
 
 #define CLOCK_CPUTIME_ID    2
 
 #ifndef CLOCK_PROCESS_CPUTIME_ID
 #define CLOCK_PROCESS_CPUTIME_ID CLOCK_CPUTIME_ID
-#endif
+#endif /* CLOCK_PROCESS_CPUTIME_ID */
+
 #ifndef CLOCK_THREAD_CPUTIME_ID
 #define CLOCK_THREAD_CPUTIME_ID  CLOCK_CPUTIME_ID
-#endif
+#endif /* CLOCK_THREAD_CPUTIME_ID */
 
 #ifndef CLOCK_MONOTONIC
 #define CLOCK_MONOTONIC     4
-#endif
+#endif /* CLOCK_MONOTONIC */
 #endif /* defined(RT_USING_POSIX_CLOCK) || defined (RT_USING_POSIX_TIMER) */
 
 #ifdef RT_USING_POSIX_CLOCK
@@ -142,8 +142,7 @@ int timer_create(clockid_t clockid, struct sigevent *evp, timer_t *timerid);
 int timer_delete(timer_t timerid);
 int timer_getoverrun(timer_t timerid);
 int timer_gettime(timer_t timerid, struct itimerspec *its);
-int timer_settime(timer_t timerid, int flags, const struct itimerspec *value,
-                  struct itimerspec *ovalue);
+int timer_settime(timer_t timerid, int flags, const struct itimerspec *value, struct itimerspec *ovalue);
 #endif /* RT_USING_POSIX_TIMER */
 
 /* timezone */
@@ -153,6 +152,6 @@ int8_t tz_is_dst(void);
 
 #ifdef __cplusplus
 }
-#endif
+#endif /* __cplusplus */
 
 #endif /* _SYS_TIME_H_ */