ref: 05764878243785d7bae1dda067d86eb9bcaec443
dir: /mbld/opts.myr/
use std use thread use "config" pkg bld = var opt_arch : byte[:] var opt_sys : byte[:] var opt_sysvers : (int, int, int) var opt_cpufeatures : uint64 var opt_runtime : byte[:] var opt_genasm : bool var opt_incpaths : byte[:][:] var opt_alltags : byte[:][:] var opt_mcflags : byte[:][:] var opt_museflags : byte[:][:] var opt_ldflags : byte[:][:] var opt_instbase : byte[:] var opt_destdir : byte[:] var opt_objdir : byte[:] var opt_maxproc : std.size var opt_debug : bool var opt_silent : bool /* undocumented/unsupported opts */ var opt_mc : byte[:] var opt_muse : byte[:] var sysarchstr : byte[:] var archstr : byte[:] var sysstr : byte[:] const initopts : (-> void) const parseversion : (v : byte[:] -> (int, int, int)) /* not exactly portable, but good enough for now */ const CpuidSSE2 : uint64= 0x400000000000000 const CpuidSSE4 : uint64= 0x180000 /* Intel manuals (vol 1, 14.5.3) say AVX, OSXSAVE also needed. For full portability, XGETBV also needs to be checked, though it isn't right now. */ const CpuidFMA : uint64= 0x18001000 extern const cpufeatures : (-> uint64) ;; var opt_arch = "" var opt_sys = "" var opt_binname = "" var opt_cpufeatures = 0ul var opt_libname = "" var opt_runtime = "" var opt_incpaths = [][:] var opt_instbase = "" var opt_destdir = "" var opt_sysvers var opt_debug = false var opt_mc = "6m" var opt_as = "as" var opt_muse = "muse" var opt_mcflags = [][:] var opt_museflags = [][:] var opt_ldflags = [][:] var opt_alltags = [][:] var opt_objdir = "obj" var opt_genasm = false var opt_silent = false var opt_maxproc = 1 const initopts = { var si std.getsysinfo(&si) match si.system | "Linux": opt_sys = "linux" | "Darwin": opt_sys = "osx" | "FreeBSD": opt_sys = "freebsd" | "NetBSD": opt_sys = "netbsd" | "OpenBSD": opt_sys = "openbsd" | "Plan9": opt_sys = "plan9" | unknown: std.fatal("unknown systemy \"{}\"\n", unknown) ;; opt_sysvers = parseversion(si.release) match si.arch | "x86_64": opt_arch = "x64" | "amd64": opt_arch = "x64" | unknown: std.fatal("unknown architecture \"{}\"\n", unknown) ;; /* from cpuid with EAX=1; EDX at top, ECX at bottom */ opt_cpufeatures = cpufeatures() opt_maxproc = 2*(thread.ncpu() : std.size) opt_instbase = config.Instroot opt_destdir = std.getenvv("DESTDIR", "") opt_mc = std.getenvv("MYR_MC", "6m") opt_muse = std.getenvv("MYR_MUSE", "muse") opt_runtime = std.getenvv("MYR_RT", "") match std.getenv("MYR_MCFLAGS") | `std.Some s: opt_mcflags = std.strtok(s) | `std.None: /* ok */ ;; match std.getenv("MYR_MUSEFLAGS") | `std.Some s: opt_mcflags = std.strtok(s) | `std.None: /* ok */ ;; match std.getenv("MYR_LDFLAGS") | `std.Some s: opt_ldflags = std.strtok(s) | `std.None: /* ok */ ;; if opt_runtime.len == 0 opt_runtime = std.pathjoin([opt_instbase, config.Libpath, config.Runtime][:]) ;; } const parseversion = {v var a var i i = 0 a = [0, 0, 0] for e : std.bysplit(v, ".") match std.intparse(e) | `std.Some n: a[i++] = n | `std.None: continue ;; if i == 3 break ;; ;; -> (a[0], a[1], a[2]) }