Treat synchronous VFP exception just like aynchronous: as an FP exception,
not as illegal instruction
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parent
bb3d23fd35
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0265aa0a15
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=290243
@ -179,12 +179,12 @@ vfp_bounce(u_int addr, u_int insn, struct trapframe *frame, int code)
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fpexc = fmrx(fpexc);
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if (fpexc & VFPEXC_EN) {
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/* Clear any exceptions */
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fmxr(fpexc, fpexc & ~(VFPEXC_EX | VFPEXC_FP2V));
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fmxr(fpexc, fpexc & ~(VFPEXC_EX | VFPEXC_DEX | VFPEXC_FP2V));
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/* kill the process - we do not handle emulation */
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critical_exit();
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if (fpexc & VFPEXC_EX) {
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if (fpexc & (VFPEXC_EX | VFPEXC_DEX)) {
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/* We have an exception, signal a SIGFPE */
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ksiginfo_init_trap(&ksi);
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ksi.ksi_signo = SIGFPE;
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@ -92,6 +92,7 @@
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/* VFPEXC */
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#define VFPEXC_EX (0x80000000) /* exception v1 v2 */
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#define VFPEXC_EN (0x40000000) /* vfp enable */
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#define VFPEXC_DEX (0x20000000) /* Synchronous exception */
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#define VFPEXC_FP2V (0x10000000) /* FPINST2 valid */
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#define VFPEXC_INV (0x00000080) /* Input exception */
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#define VFPEXC_UFC (0x00000008) /* Underflow exception */
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