Date: Sun, 1 Nov 2015 21:59:57 +0000 (UTC) From: Oleksandr Tymoshenko <gonzo@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r290243 - in head/sys/arm: arm include Message-ID: <201511012159.tA1LxvZq041599@repo.freebsd.org>
next in thread | raw e-mail | index | archive | help
Author: gonzo Date: Sun Nov 1 21:59:56 2015 New Revision: 290243 URL: https://svnweb.freebsd.org/changeset/base/290243 Log: Treat synchronous VFP exception just like aynchronous: as an FP exception, not as illegal instruction Modified: head/sys/arm/arm/vfp.c head/sys/arm/include/vfp.h Modified: head/sys/arm/arm/vfp.c ============================================================================== --- head/sys/arm/arm/vfp.c Sun Nov 1 21:20:29 2015 (r290242) +++ head/sys/arm/arm/vfp.c Sun Nov 1 21:59:56 2015 (r290243) @@ -179,12 +179,12 @@ vfp_bounce(u_int addr, u_int insn, struc fpexc = fmrx(fpexc); if (fpexc & VFPEXC_EN) { /* Clear any exceptions */ - fmxr(fpexc, fpexc & ~(VFPEXC_EX | VFPEXC_FP2V)); + fmxr(fpexc, fpexc & ~(VFPEXC_EX | VFPEXC_DEX | VFPEXC_FP2V)); /* kill the process - we do not handle emulation */ critical_exit(); - if (fpexc & VFPEXC_EX) { + if (fpexc & (VFPEXC_EX | VFPEXC_DEX)) { /* We have an exception, signal a SIGFPE */ ksiginfo_init_trap(&ksi); ksi.ksi_signo = SIGFPE; Modified: head/sys/arm/include/vfp.h ============================================================================== --- head/sys/arm/include/vfp.h Sun Nov 1 21:20:29 2015 (r290242) +++ head/sys/arm/include/vfp.h Sun Nov 1 21:59:56 2015 (r290243) @@ -92,6 +92,7 @@ /* VFPEXC */ #define VFPEXC_EX (0x80000000) /* exception v1 v2 */ #define VFPEXC_EN (0x40000000) /* vfp enable */ +#define VFPEXC_DEX (0x20000000) /* Synchronous exception */ #define VFPEXC_FP2V (0x10000000) /* FPINST2 valid */ #define VFPEXC_INV (0x00000080) /* Input exception */ #define VFPEXC_UFC (0x00000008) /* Underflow exception */
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?201511012159.tA1LxvZq041599>