diff options
| author | Pixel <pixel@nobis-crew.org> | 2011-02-05 08:31:33 -0800 |
|---|---|---|
| committer | Pixel <pixel@nobis-crew.org> | 2011-02-05 08:31:33 -0800 |
| commit | 0736203a630b2fbc2bc3e6383e4aec9285bba184 (patch) | |
| tree | 1bca3f8821e607a47b4adfaab2f60fa029a2a58a | |
| parent | 681c1493836e79ea87faba47a804899374ccc219 (diff) | |
Context switch also means switching that global errno variable.
| -rw-r--r-- | FreeRTOS/Source/tasks.c | 1 | ||||
| -rw-r--r-- | libc/Makefile | 1 | ||||
| -rw-r--r-- | libc/include/errno.h | 2 | ||||
| -rw-r--r-- | libc/src/errno.c | 3 |
4 files changed, 7 insertions, 0 deletions
diff --git a/FreeRTOS/Source/tasks.c b/FreeRTOS/Source/tasks.c index 6ad1c58..1aac8f2 100644 --- a/FreeRTOS/Source/tasks.c +++ b/FreeRTOS/Source/tasks.c @@ -1641,6 +1641,7 @@ void vTaskSwitchContext( void ) #if ( configUSE_NEWLIB_REENTRANT == 1 )
_impure_ptr = &(pxCurrentTCB->reent);
+ errno = _impure_ptr->_errno;
#endif
traceTASK_SWITCHED_IN();
diff --git a/libc/Makefile b/libc/Makefile index 64cfa5d..9ef6392 100644 --- a/libc/Makefile +++ b/libc/Makefile @@ -20,6 +20,7 @@ src/read.c \ src/write.c \ \ src/stdio.c \ +src/errno.c \ \ src/reent.c \ \ diff --git a/libc/include/errno.h b/libc/include/errno.h index c88ea64..5e0af8c 100644 --- a/libc/include/errno.h +++ b/libc/include/errno.h @@ -137,4 +137,6 @@ enum errno_t { ERFKILL = 132, }; +volatile extern enum errno_t errno; + #endif diff --git a/libc/src/errno.c b/libc/src/errno.c new file mode 100644 index 0000000..6e6a6e8 --- /dev/null +++ b/libc/src/errno.c @@ -0,0 +1,3 @@ +#include "errno.h" + +volatile enum errno_t errno = ENOERROR; |