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Revert r290243, it's vaid "illegal instruction" case

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DEX bit is set to 1 and exception raised whenever vectorized operation is
attempted on the VFP implementation that does not support it (i.e. on Cortex A7)
This commit is contained in:
Oleksandr Tymoshenko 2015-11-04 04:01:59 +00:00
parent ee09cb0bfb
commit 23e00b90da
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=290349
1 changed files with 2 additions and 2 deletions
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sys/arm/arm/vfp.c
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@ -179,12 +179,12 @@ vfp_bounce(u_int addr, u_int insn, struct trapframe *frame, int code)
fpexc = fmrx(fpexc);
if (fpexc & VFPEXC_EN) {
/* Clear any exceptions */
fmxr(fpexc, fpexc & ~(VFPEXC_EX | VFPEXC_DEX | VFPEXC_FP2V));
fmxr(fpexc, fpexc & ~(VFPEXC_EX | VFPEXC_FP2V));
/* kill the process - we do not handle emulation */
critical_exit();
if (fpexc & (VFPEXC_EX | VFPEXC_DEX)) {
if (fpexc & VFPEXC_EX) {
/* We have an exception, signal a SIGFPE */
ksiginfo_init_trap(&ksi);
ksi.ksi_signo = SIGFPE;