Module Name: src
Committed By: chs
Date: Mon Feb 27 06:57:45 UTC 2017
Modified Files:
src/sys/arch/mips/mips: fp.S
Log Message:
in mips_emul_fp(), clear all pending FP exceptions rather than
just a particular one, otherwise the kernel can take another
FPU trap when it writes back the new FCSR value.
discovered via the fesetround() bug that wrote garbage to the FCSR.
To generate a diff of this commit:
cvs rdiff -u -r1.47 -r1.48 src/sys/arch/mips/mips/fp.S
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/arch/mips/mips/fp.S
diff -u src/sys/arch/mips/mips/fp.S:1.47 src/sys/arch/mips/mips/fp.S:1.48
--- src/sys/arch/mips/mips/fp.S:1.47 Thu Oct 13 18:54:46 2016
+++ src/sys/arch/mips/mips/fp.S Mon Feb 27 06:57:45 2017
@@ -1,4 +1,4 @@
-/* $NetBSD: fp.S,v 1.47 2016/10/13 18:54:46 macallan Exp $ */
+/* $NetBSD: fp.S,v 1.48 2017/02/27 06:57:45 chs Exp $ */
/*
* Copyright (c) 1992, 1993
@@ -145,7 +145,7 @@ NESTED(mips_emul_fp, CALLFRAME_SIZ, ra)
#else
cfc1 a2, MIPS_FPU_CSR # get exception register
PTR_L a3, fmt_tbl(v0) # switch on FUNC & FMT
- and a2, a2, ~MIPS_FPU_EXCEPTION_UNIMPL # clear exception
+ and a2, a2, ~MIPS_FPU_EXCEPTION_BITS # clear exception
ctc1 a2, MIPS_FPU_CSR
#endif
j a3
