diff options
| author | NIIBE Yutaka <gniibe@fsij.org> | 2013-11-08 12:37:55 +0900 |
|---|---|---|
| committer | NIIBE Yutaka <gniibe@fsij.org> | 2013-11-08 12:37:55 +0900 |
| commit | 51a862e200766d563583b5e5085815fae4db770f (patch) | |
| tree | 092beb2d47536768ff9582bd679c53a4a3602f89 | |
| parent | 21c3f461c56832329a4968103c060ffc22545e96 (diff) | |
Version 0.03release/0.03
| -rw-r--r-- | ChangeLog | 7 | ||||
| -rw-r--r-- | NEWS | 10 | ||||
| -rw-r--r-- | README | 2 | ||||
| -rw-r--r-- | chopstx.c | 6 | ||||
| -rw-r--r-- | doc/chopstx.texi | 2 |
5 files changed, 23 insertions, 4 deletions
@@ -1,5 +1,12 @@ 2013-11-08 Niibe Yutaka <gniibe@fsij.org> + * Version 0.03. + * doc/chopstx.texi (VERSION): 0.03. + + * chopstx.c (preempt): Disable interrupt. + +2013-11-08 Niibe Yutaka <gniibe@fsij.org> + * Version 0.02. * doc/chopstx.texi (VERSION): 0.02. @@ -1,5 +1,15 @@ NEWS - Noteworthy changes +* Major changes in Chopstx 0.03 + + Released 2013-11-08, by NIIBE Yutaka + +** Bug fix of preemption +In the implementation of preemption, there was a bug which might cause +not to schedule proper thread. This is because the routine preepmt +itself might be interrupted. This is now fixed in 0.03. + + * Major changes in Chopstx 0.02 Released 2013-11-08, by NIIBE Yutaka @@ -1,5 +1,5 @@ Chopstx - Threads and only Threads - Version 0.02 + Version 0.03 2013-11-08 Niibe Yutaka Flying Stone Technology @@ -431,7 +431,9 @@ preempt (void) { register struct chx_thread *tp asm ("r0"); - asm ("ldr r1, =running\n\t" + tp = (struct chx_thread *)CPU_EXCEPTION_PRIORITY_INHIBIT_SCHED; + asm ("msr BASEPRI, r0\n\t" + "ldr r1, =running\n\t" "ldr r0, [r1]\n\t" "cbnz r0, 0f\n\t" /* It's idle which was preempted. Discard saved registers on stack. */ @@ -449,7 +451,7 @@ preempt (void) "mrs r6, PSP\n\t" /* r13(=SP) in user space. */ "stm r1, {r2, r3, r4, r5, r6}" : "=r" (tp) - : /* no input */ + : "r" (tp) : "r1", "r2", "r3", "r4", "r5", "r6", "cc", "memory"); if (tp) diff --git a/doc/chopstx.texi b/doc/chopstx.texi index 0d8303e..e168c74 100644 --- a/doc/chopstx.texi +++ b/doc/chopstx.texi @@ -1,7 +1,7 @@ \input texinfo @c -*-texinfo-*- @c %**start of header @setfilename chopstx.info -@set VERSION 0.02 +@set VERSION 0.03 @settitle Chopstx Reference Manual @c Unify some of the indices. @syncodeindex tp fn |