| created | 2022-10-30T02:38:52Z |
|---|---|
| begin | 2022-10-22T00:00:00Z |
| end | 2022-10-23T00:00:00Z |
| path | src/sys |
| commits | 3 |
| date | 2022-10-22T00:58:56Z | |||
|---|---|---|---|---|
| author | gkoehler | |||
| files | src/sys/arch/powerpc/conf/files.powerpc | log | diff | annotate |
| src/sys/arch/powerpc/include/trap.h | log | diff | annotate | |
| src/sys/arch/powerpc/powerpc/trap.c | log | diff | annotate | |
| src/sys/arch/powerpc/powerpc/vecast.S | log | diff | annotate | |
| message |
AltiVec assist for subnormal floats in vectors The old CPU in a macppc traps AltiVec instructions when they encounter denormal or subnormal floats. Emulate most of them. They operate on vectors of 4 single-precision floats. The emulations either use scalar operations (so vmaddfp becomes 4 of fmadds) or a formula (like vrsqrtefp's 1 / sqrt(b) = 1 / sqrt(b * 2**126) * 2**63). I am forgetting to emulate some instructions (at least vrfin, vrfiz, vrfip, vrfim). If I don't emulate it, it will still cause SIGFPE. Mac OS never emulated these instructions, but set AltiVec's "non-Java" NJ bit (which changes all subnormal floats to zero). FreeBSD also sets NJ; NetBSD does SIGFPE; Linux emulates them. The POWER9 running OpenBSD/powerpc64 does them in hardware (without trapping). ok kettenis@ miod@ |
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| date | 2022-10-22T15:06:47Z | |||
|---|---|---|---|---|
| author | deraadt | |||
| files | src/sys/kern/exec_elf.c | log | diff | annotate |
| message |
automatic immutable for base executable is not ready on mips because DT_DEBUG isn't in the right place |
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| date | 2022-10-22T20:09:41Z | |||
|---|---|---|---|---|
| author | miod | |||
| files | src/sys/arch/sparc64/include/cpu.h | log | diff | annotate |
| src/sys/arch/sparc64/include/frame.h | log | diff | annotate | |
| src/sys/arch/sparc64/include/reg.h | log | diff | annotate | |
| message | Put struct rwindow back in reg.h, pcb.h depends on this. | |||