wireguard-openbsd/lib/libm/arch, branch jd/simplify-queueing WireGuard implementation for the OpenBSD kernel https://git.zx2c4.com/wireguard-openbsd/atom/lib/libm/arch?h=jd%2Fsimplify-queueing 2019-03-12T22:14:50Z Setting and getting the rounding mode on our arm64 FPU has not worked 2019-03-12T22:14:50Z patrick patrick@openbsd.org 2019-03-12T22:14:50Z urn:sha1:53b00876ee12a0c62c3f155b1de308a45679f18e in libm since the rounding mode is in fpcr, not fpsr. Since both FPU registers are 32-bit we can store them in the 64-bit fenv_t to make handling the bits easier. While there add FE_DENORMAL, which also exists on x86. Also make sure that whenever we are being passed an exception mask, we only allow the bits that are supported by hardware. Found by regression tests Debugged with Moritz Buhl ok kettenis@ Add missing retguard check 2018-07-08T12:49:16Z mortimer mortimer@openbsd.org 2018-07-08T12:49:16Z urn:sha1:f02487654d2a17e384c1733cbed4444bb30bba52 ok deraadt Add retguard macros to libm assembly. 2018-07-03T22:43:34Z mortimer mortimer@openbsd.org 2018-07-03T22:43:34Z urn:sha1:3ba7702be0c7af3f580acc0a15f2fb78868ef980 ok deraadt Since most (if not all) ARMv8 hardware doesn't actually support trapping of 2018-03-16T10:22:52Z kettenis kettenis@openbsd.org 2018-03-16T10:22:52Z urn:sha1:1ff8d394f3ae9f209c103a45737dbc8f39da325b floating-point exceptions, simplify the functions that control the exception masks just like we did on armv7. ok tom@ Make the binding of rintl, significand, and significandf consistently 2018-03-12T04:27:48Z guenther guenther@openbsd.org 2018-03-12T04:27:48Z urn:sha1:d17b7c42c56308448a37b04fda5041f9c413e4fb 'weak' in the static libm.a ok deraadt@ Change floating-point mode/environment control functions to operate on 2018-02-28T11:16:54Z kettenis kettenis@openbsd.org 2018-02-28T11:16:54Z urn:sha1:b02ee2d0b169340f8c05ac869f38b89250c96865 both the hardfloat (FPU registers) and softfloat (software) state. This makes these functions work correctly when mixing hardfloat and softfloat code. Disable trapping for softfloat since most (if not all) ARMv7 and ARMv8 hardware that is on the market doesn't support trapping of floating-point exceptions. ok patrick@ Constants which can go into .rodata 2018-02-05T04:01:49Z deraadt deraadt@openbsd.org 2018-02-05T04:01:49Z urn:sha1:f6b709d44327051d2daaa7bf3b25ca2bc658a081 Use 0xcc trapsleds instead of default/nop/0xcc in BTC alignments 2017-08-19T18:27:19Z deraadt deraadt@openbsd.org 2017-08-19T18:27:19Z urn:sha1:692d8164fc61f2d957f938d876aa5fb3a4eb71c6 don't bother with .text before ENTRY() Add support for AArch64. Based on FreeBSD's msun header, modified 2017-01-11T13:38:13Z patrick patrick@openbsd.org 2017-01-11T13:38:13Z urn:sha1:3c6363cf8bb94e6527044bc52d6c77cd85f71439 to look and feel like our code. copysign and copysignf are used within libm, so declare them accordingly. 2016-12-22T16:11:26Z naddy naddy@openbsd.org 2016-12-22T16:11:26Z urn:sha1:6d9c1604e2b9950ba6aad939ef3b473074496c63 Required if the compiler doesn't replace them with builtins (e.g. clang on amd64). ok kettenis@ guenther@ i386 sync requested by guenther@