File Manager

X7ROOT File Manager

Current Path: /opt/golang/1.17.2/src/runtime

📁 ..
📄 HACKING.md(13.07 KB)
📄 Makefile(178 B)
📄 abi_test.go(2.88 KB)
📄 alg.go(9.45 KB)
📄 asm.s(715 B)
📄 asm_386.s(40.27 KB)
📄 asm_amd64.s(56.93 KB)
📄 asm_arm.s(30.23 KB)
📄 asm_arm64.s(33 KB)
📄 asm_mips64x.s(22.43 KB)
📄 asm_mipsx.s(24.39 KB)
📄 asm_ppc64x.h(1023 B)
📄 asm_ppc64x.s(29.16 KB)
📄 asm_riscv64.s(22.43 KB)
📄 asm_s390x.s(26.04 KB)
📄 asm_wasm.s(9.8 KB)
📄 atomic_arm64.s(259 B)
📄 atomic_mips64x.s(326 B)
📄 atomic_mipsx.s(284 B)
📄 atomic_pointer.go(2.62 KB)
📄 atomic_ppc64x.s(461 B)
📄 atomic_riscv64.s(275 B)
📄 auxv_none.go(360 B)
📄 callers_test.go(7.72 KB)
📁 cgo
📄 cgo.go(2.01 KB)
📄 cgo_mmap.go(2.42 KB)
📄 cgo_ppc64x.go(439 B)
📄 cgo_sigaction.go(3.17 KB)
📄 cgocall.go(18.88 KB)
📄 cgocallback.go(317 B)
📄 cgocheck.go(6.83 KB)
📄 chan.go(23.54 KB)
📄 chan_test.go(23.01 KB)
📄 chanbarrier_test.go(1.4 KB)
📄 checkptr.go(3.29 KB)
📄 checkptr_test.go(1.62 KB)
📄 closure_test.go(937 B)
📄 compiler.go(413 B)
📄 complex.go(1.59 KB)
📄 complex_test.go(1.05 KB)
📄 conv_wasm_test.go(2.96 KB)
📄 cpuflags.go(800 B)
📄 cpuflags_amd64.go(533 B)
📄 cpuflags_arm64.go(334 B)
📄 cpuprof.go(6.92 KB)
📄 cputicks.go(497 B)
📄 crash_cgo_test.go(16.17 KB)
📄 crash_nonunix_test.go(429 B)
📄 crash_test.go(20.96 KB)
📄 crash_unix_test.go(8.52 KB)
📁 debug
📄 debug.go(1.63 KB)
📄 debug_test.go(6.82 KB)
📄 debugcall.go(6.21 KB)
📄 debuglog.go(17.49 KB)
📄 debuglog_off.go(377 B)
📄 debuglog_on.go(1.11 KB)
📄 debuglog_test.go(4.56 KB)
📄 defer_test.go(10.32 KB)
📄 defs1_linux.go(862 B)
📄 defs1_netbsd_386.go(2.84 KB)
📄 defs1_netbsd_amd64.go(3.07 KB)
📄 defs1_netbsd_arm.go(2.96 KB)
📄 defs1_netbsd_arm64.go(3.18 KB)
📄 defs1_solaris_amd64.go(4.02 KB)
📄 defs2_linux.go(3.52 KB)
📄 defs3_linux.go(1.11 KB)
📄 defs_aix.go(4.18 KB)
📄 defs_aix_ppc64.go(3.63 KB)
📄 defs_arm_linux.go(2.69 KB)
📄 defs_darwin.go(3.79 KB)
📄 defs_darwin_amd64.go(6.07 KB)
📄 defs_darwin_arm64.go(3.89 KB)
📄 defs_dragonfly.go(2.63 KB)
📄 defs_dragonfly_amd64.go(3.31 KB)
📄 defs_freebsd.go(3.86 KB)
📄 defs_freebsd_386.go(4.38 KB)
📄 defs_freebsd_amd64.go(4.65 KB)
📄 defs_freebsd_arm.go(3.71 KB)
📄 defs_freebsd_arm64.go(4.03 KB)
📄 defs_illumos_amd64.go(285 B)
📄 defs_linux.go(3.05 KB)
📄 defs_linux_386.go(3.77 KB)
📄 defs_linux_amd64.go(4.28 KB)
📄 defs_linux_arm.go(3.45 KB)
📄 defs_linux_arm64.go(3.21 KB)
📄 defs_linux_mips64x.go(3.24 KB)
📄 defs_linux_mipsx.go(3.21 KB)
📄 defs_linux_ppc64.go(3.28 KB)
📄 defs_linux_ppc64le.go(3.28 KB)
📄 defs_linux_riscv64.go(3.27 KB)
📄 defs_linux_s390x.go(2.76 KB)
📄 defs_netbsd.go(2.76 KB)
📄 defs_netbsd_386.go(872 B)
📄 defs_netbsd_amd64.go(1.03 KB)
📄 defs_netbsd_arm.go(781 B)
📄 defs_openbsd.go(3.1 KB)
📄 defs_openbsd_386.go(2.89 KB)
📄 defs_openbsd_amd64.go(3.09 KB)
📄 defs_openbsd_arm.go(3 KB)
📄 defs_openbsd_arm64.go(2.76 KB)
📄 defs_openbsd_mips64.go(2.66 KB)
📄 defs_plan9_386.go(1.63 KB)
📄 defs_plan9_amd64.go(1.82 KB)
📄 defs_plan9_arm.go(1.73 KB)
📄 defs_solaris.go(3.35 KB)
📄 defs_solaris_amd64.go(1021 B)
📄 defs_windows.go(2.09 KB)
📄 defs_windows_386.go(1.98 KB)
📄 defs_windows_amd64.go(2.71 KB)
📄 defs_windows_arm.go(2.11 KB)
📄 defs_windows_arm64.go(2.63 KB)
📄 duff_386.s(8.24 KB)
📄 duff_amd64.s(5.62 KB)
📄 duff_arm.s(7.11 KB)
📄 duff_arm64.s(5.25 KB)
📄 duff_mips64x.s(11.31 KB)
📄 duff_ppc64x.s(2.43 KB)
📄 duff_riscv64.s(11.38 KB)
📄 duff_s390x.s(507 B)
📄 env_plan9.go(2.99 KB)
📄 env_posix.go(1.95 KB)
📄 env_test.go(1.16 KB)
📄 error.go(9.23 KB)
📄 example_test.go(1.55 KB)
📄 export_aix_test.go(204 B)
📄 export_arm_test.go(226 B)
📄 export_darwin_test.go(351 B)
📄 export_debug_regabiargs_off_test.go(416 B)
📄 export_debug_regabiargs_on_test.go(1.39 KB)
📄 export_debug_test.go(5.86 KB)
📄 export_debuglog_test.go(1.27 KB)
📄 export_futex_test.go(570 B)
📄 export_linux_test.go(429 B)
📄 export_mmap_test.go(571 B)
📄 export_pipe2_test.go(436 B)
📄 export_pipe_test.go(240 B)
📄 export_solaris_test.go(282 B)
📄 export_test.go(30.12 KB)
📄 export_unix_test.go(2.35 KB)
📄 export_windows_test.go(652 B)
📄 extern.go(12.58 KB)
📄 fastlog2.go(1.22 KB)
📄 fastlog2_test.go(784 B)
📄 fastlog2table.go(904 B)
📄 float.go(1.35 KB)
📄 funcdata.h(2.47 KB)
📄 futex_test.go(2.15 KB)
📄 gc_test.go(19.21 KB)
📄 gcinfo_test.go(5.69 KB)
📄 go_tls.h(366 B)
📄 hash32.go(1.61 KB)
📄 hash64.go(2.01 KB)
📄 hash_test.go(16.5 KB)
📄 heapdump.go(17.74 KB)
📄 histogram.go(6.42 KB)
📄 histogram_test.go(1.85 KB)
📄 iface.go(16.13 KB)
📄 iface_test.go(7.51 KB)
📁 internal
📄 lfstack.go(1.77 KB)
📄 lfstack_32bit.go(562 B)
📄 lfstack_64bit.go(2.24 KB)
📄 lfstack_test.go(2.78 KB)
📄 libfuzzer.go(2.6 KB)
📄 libfuzzer_amd64.s(961 B)
📄 libfuzzer_arm64.s(772 B)
📄 lock_futex.go(5.22 KB)
📄 lock_js.go(5.81 KB)
📄 lock_sema.go(6.8 KB)
📄 lockrank.go(11.62 KB)
📄 lockrank_off.go(1.17 KB)
📄 lockrank_on.go(9.84 KB)
📄 lockrank_test.go(1.15 KB)
📄 malloc.go(52.33 KB)
📄 malloc_test.go(10.83 KB)
📄 map.go(42.47 KB)
📄 map_benchmark_test.go(10.51 KB)
📄 map_fast32.go(12.63 KB)
📄 map_fast64.go(12.82 KB)
📄 map_faststr.go(14.15 KB)
📄 map_test.go(27.52 KB)
📄 mbarrier.go(12.2 KB)
📄 mbitmap.go(65.27 KB)
📄 mcache.go(9.68 KB)
📄 mcentral.go(7.8 KB)
📄 mcheckmark.go(2.81 KB)
📄 mem_aix.go(1.94 KB)
📄 mem_bsd.go(2.12 KB)
📄 mem_darwin.go(1.88 KB)
📄 mem_js.go(2.35 KB)
📄 mem_linux.go(5.59 KB)
📄 mem_plan9.go(4.53 KB)
📄 mem_windows.go(3.87 KB)
📄 memclr_386.s(2.42 KB)
📄 memclr_amd64.s(3.89 KB)
📄 memclr_arm.s(2.6 KB)
📄 memclr_arm64.s(3.65 KB)
📄 memclr_mips64x.s(1.75 KB)
📄 memclr_mipsx.s(1.35 KB)
📄 memclr_plan9_386.s(983 B)
📄 memclr_plan9_amd64.s(511 B)
📄 memclr_ppc64x.s(4.31 KB)
📄 memclr_riscv64.s(926 B)
📄 memclr_s390x.s(1.96 KB)
📄 memclr_wasm.s(622 B)
📄 memmove_386.s(4.46 KB)
📄 memmove_amd64.s(12.66 KB)
📄 memmove_arm.s(5.9 KB)
📄 memmove_arm64.s(6 KB)
📄 memmove_linux_amd64_test.go(1.6 KB)
📄 memmove_mips64x.s(1.85 KB)
📄 memmove_mipsx.s(4.42 KB)
📄 memmove_plan9_386.s(3.06 KB)
📄 memmove_plan9_amd64.s(3.04 KB)
📄 memmove_ppc64x.s(4.11 KB)
📄 memmove_riscv64.s(1.81 KB)
📄 memmove_s390x.s(2.92 KB)
📄 memmove_test.go(12.04 KB)
📄 memmove_wasm.s(1.74 KB)
📁 metrics
📄 metrics.go(17.69 KB)
📄 metrics_test.go(12.48 KB)
📄 mfinal.go(15.76 KB)
📄 mfinal_test.go(5.85 KB)
📄 mfixalloc.go(2.73 KB)
📄 mgc.go(55.18 KB)
📄 mgcmark.go(45.54 KB)
📄 mgcpacer.go(29.56 KB)
📄 mgcscavenge.go(35.05 KB)
📄 mgcscavenge_test.go(12.74 KB)
📄 mgcstack.go(10.58 KB)
📄 mgcsweep.go(23.56 KB)
📄 mgcwork.go(12.82 KB)
📄 mheap.go(66.31 KB)
📄 mkduff.go(7.19 KB)
📄 mkfastlog2table.go(1.32 KB)
📄 mkpreempt.go(14.17 KB)
📄 mksizeclasses.go(9.31 KB)
📄 mmap.go(990 B)
📄 mpagealloc.go(36.77 KB)
📄 mpagealloc_32bit.go(3.81 KB)
📄 mpagealloc_64bit.go(6.65 KB)
📄 mpagealloc_test.go(32.38 KB)
📄 mpagecache.go(5.28 KB)
📄 mpagecache_test.go(9.93 KB)
📄 mpallocbits.go(12.01 KB)
📄 mpallocbits_test.go(13.69 KB)
📄 mprof.go(25.82 KB)
📄 mranges.go(11.84 KB)
📄 mranges_test.go(5.68 KB)
📁 msan
📄 msan.go(1.51 KB)
📄 msan0.go(741 B)
📄 msan_amd64.s(2.32 KB)
📄 msan_arm64.s(2.01 KB)
📄 msize.go(777 B)
📄 mspanset.go(12.2 KB)
📄 mstats.go(30.65 KB)
📄 mwbbuf.go(9.3 KB)
📄 nbpipe_fcntl_libc_test.go(499 B)
📄 nbpipe_fcntl_unix_test.go(507 B)
📄 nbpipe_pipe.go(426 B)
📄 nbpipe_pipe2.go(592 B)
📄 nbpipe_test.go(2.26 KB)
📄 net_plan9.go(645 B)
📄 netpoll.go(16.24 KB)
📄 netpoll_aix.go(4.87 KB)
📄 netpoll_epoll.go(4.21 KB)
📄 netpoll_fake.go(670 B)
📄 netpoll_kqueue.go(4.64 KB)
📄 netpoll_os_test.go(360 B)
📄 netpoll_solaris.go(10.75 KB)
📄 netpoll_stub.go(1.42 KB)
📄 netpoll_windows.go(3.75 KB)
📄 norace_linux_test.go(905 B)
📄 norace_test.go(996 B)
📄 numcpu_freebsd_test.go(381 B)
📄 os2_aix.go(20.45 KB)
📄 os2_freebsd.go(302 B)
📄 os2_openbsd.go(296 B)
📄 os2_plan9.go(1.48 KB)
📄 os2_solaris.go(320 B)
📄 os3_plan9.go(3.88 KB)
📄 os3_solaris.go(17.02 KB)
📄 os_aix.go(8.06 KB)
📄 os_android.go(463 B)
📄 os_darwin.go(11.54 KB)
📄 os_darwin_arm64.go(416 B)
📄 os_dragonfly.go(6.46 KB)
📄 os_freebsd.go(11.2 KB)
📄 os_freebsd2.go(507 B)
📄 os_freebsd_amd64.go(529 B)
📄 os_freebsd_arm.go(1.32 KB)
📄 os_freebsd_arm64.go(398 B)
📄 os_freebsd_noauxv.go(264 B)
📄 os_illumos.go(3.93 KB)
📄 os_js.go(3.26 KB)
📄 os_linux.go(13.47 KB)
📄 os_linux_arm.go(1.35 KB)
📄 os_linux_arm64.go(572 B)
📄 os_linux_be64.go(862 B)
📄 os_linux_generic.go(950 B)
📄 os_linux_mips64x.go(1.11 KB)
📄 os_linux_mipsx.go(1.09 KB)
📄 os_linux_noauxv.go(408 B)
📄 os_linux_novdso.go(387 B)
📄 os_linux_ppc64x.go(566 B)
📄 os_linux_riscv64.go(198 B)
📄 os_linux_s390x.go(316 B)
📄 os_linux_x86.go(270 B)
📄 os_netbsd.go(9.09 KB)
📄 os_netbsd_386.go(588 B)
📄 os_netbsd_amd64.go(585 B)
📄 os_netbsd_arm.go(1.13 KB)
📄 os_netbsd_arm64.go(827 B)
📄 os_nonopenbsd.go(456 B)
📄 os_only_solaris.go(376 B)
📄 os_openbsd.go(6.01 KB)
📄 os_openbsd_arm.go(749 B)
📄 os_openbsd_arm64.go(416 B)
📄 os_openbsd_libc.go(1.7 KB)
📄 os_openbsd_mips64.go(416 B)
📄 os_openbsd_syscall.go(1.27 KB)
📄 os_openbsd_syscall1.go(466 B)
📄 os_openbsd_syscall2.go(2.5 KB)
📄 os_plan9.go(10.2 KB)
📄 os_plan9_arm.go(462 B)
📄 os_solaris.go(6.49 KB)
📄 os_windows.go(43.68 KB)
📄 os_windows_arm.go(511 B)
📄 os_windows_arm64.go(339 B)
📄 panic.go(44.28 KB)
📄 panic32.go(4.83 KB)
📄 panic_test.go(1.71 KB)
📄 plugin.go(4.27 KB)
📁 pprof
📄 preempt.go(15.4 KB)
📄 preempt_386.s(1.07 KB)
📄 preempt_amd64.s(1.81 KB)
📄 preempt_arm.s(1.66 KB)
📄 preempt_arm64.s(2.99 KB)
📄 preempt_mips64x.s(2.93 KB)
📄 preempt_mipsx.s(2.89 KB)
📄 preempt_nonwindows.go(309 B)
📄 preempt_ppc64x.s(2.92 KB)
📄 preempt_riscv64.s(2.48 KB)
📄 preempt_s390x.s(1.19 KB)
📄 preempt_wasm.s(365 B)
📄 print.go(5.95 KB)
📄 proc.go(181.46 KB)
📄 proc_runtime_test.go(820 B)
📄 proc_test.go(25.02 KB)
📄 profbuf.go(18.26 KB)
📄 profbuf_test.go(8.65 KB)
📄 proflabel.go(1.52 KB)
📁 race
📄 race.go(18.56 KB)
📄 race0.go(2.81 KB)
📄 race_amd64.s(14.46 KB)
📄 race_arm64.s(13.71 KB)
📄 race_ppc64le.s(17.72 KB)
📄 rand_test.go(783 B)
📄 rdebug.go(553 B)
📄 relax_stub.go(617 B)
📄 rt0_aix_ppc64.s(4.33 KB)
📄 rt0_android_386.s(822 B)
📄 rt0_android_amd64.s(754 B)
📄 rt0_android_arm.s(843 B)
📄 rt0_android_arm64.s(941 B)
📄 rt0_darwin_amd64.s(399 B)
📄 rt0_darwin_arm64.s(2.27 KB)
📄 rt0_dragonfly_amd64.s(448 B)
📄 rt0_freebsd_386.s(454 B)
📄 rt0_freebsd_amd64.s(442 B)
📄 rt0_freebsd_arm.s(298 B)
📄 rt0_freebsd_arm64.s(2.46 KB)
📄 rt0_illumos_amd64.s(311 B)
📄 rt0_ios_amd64.s(425 B)
📄 rt0_ios_arm64.s(425 B)
📄 rt0_js_wasm.s(2.3 KB)
📄 rt0_linux_386.s(450 B)
📄 rt0_linux_amd64.s(307 B)
📄 rt0_linux_arm.s(1007 B)
📄 rt0_linux_arm64.s(2.39 KB)
📄 rt0_linux_mips64x.s(1.03 KB)
📄 rt0_linux_mipsx.s(835 B)
📄 rt0_linux_ppc64.s(865 B)
📄 rt0_linux_ppc64le.s(3.88 KB)
📄 rt0_linux_riscv64.s(370 B)
📄 rt0_linux_s390x.s(676 B)
📄 rt0_netbsd_386.s(452 B)
📄 rt0_netbsd_amd64.s(309 B)
📄 rt0_netbsd_arm.s(296 B)
📄 rt0_netbsd_arm64.s(2.38 KB)
📄 rt0_openbsd_386.s(454 B)
📄 rt0_openbsd_amd64.s(311 B)
📄 rt0_openbsd_arm.s(298 B)
📄 rt0_openbsd_arm64.s(2.54 KB)
📄 rt0_openbsd_mips64.s(976 B)
📄 rt0_plan9_386.s(523 B)
📄 rt0_plan9_amd64.s(481 B)
📄 rt0_plan9_arm.s(397 B)
📄 rt0_solaris_amd64.s(311 B)
📄 rt0_windows_386.s(1.28 KB)
📄 rt0_windows_amd64.s(986 B)
📄 rt0_windows_arm.s(386 B)
📄 rt0_windows_arm64.s(725 B)
📄 runtime-gdb.py(15.02 KB)
📄 runtime-gdb_test.go(20.19 KB)
📄 runtime-lldb_test.go(4.95 KB)
📄 runtime.go(1.42 KB)
📄 runtime1.go(12.63 KB)
📄 runtime2.go(42.27 KB)
📄 runtime_linux_test.go(1.46 KB)
📄 runtime_mmap_test.go(1.91 KB)
📄 runtime_test.go(7.81 KB)
📄 runtime_unix_test.go(1.29 KB)
📄 rwmutex.go(3.53 KB)
📄 rwmutex_test.go(4.03 KB)
📄 select.go(14.45 KB)
📄 sema.go(16.08 KB)
📄 sema_test.go(2.5 KB)
📄 semasleep_test.go(1.65 KB)
📄 sigaction.go(543 B)
📄 signal_386.go(1.72 KB)
📄 signal_aix_ppc64.go(3.56 KB)
📄 signal_amd64.go(2.71 KB)
📄 signal_arm.go(2.56 KB)
📄 signal_arm64.go(3.16 KB)
📄 signal_darwin.go(2.13 KB)
📄 signal_darwin_amd64.go(3.85 KB)
📄 signal_darwin_arm64.go(3.6 KB)
📄 signal_dragonfly.go(2.17 KB)
📄 signal_dragonfly_amd64.go(2.01 KB)
📄 signal_freebsd.go(2.2 KB)
📄 signal_freebsd_386.go(1.55 KB)
📄 signal_freebsd_amd64.go(2.03 KB)
📄 signal_freebsd_arm.go(2.18 KB)
📄 signal_freebsd_arm64.go(3.23 KB)
📄 signal_linux_386.go(1.59 KB)
📄 signal_linux_amd64.go(2.05 KB)
📄 signal_linux_arm.go(2.13 KB)
📄 signal_linux_arm64.go(2.95 KB)
📄 signal_linux_mips64x.go(3.39 KB)
📄 signal_linux_mipsx.go(3.7 KB)
📄 signal_linux_ppc64x.go(3.46 KB)
📄 signal_linux_riscv64.go(2.92 KB)
📄 signal_linux_s390x.go(4.43 KB)
📄 signal_mips64x.go(3.2 KB)
📄 signal_mipsx.go(3.07 KB)
📄 signal_netbsd.go(2.18 KB)
📄 signal_netbsd_386.go(1.76 KB)
📄 signal_netbsd_amd64.go(2.33 KB)
📄 signal_netbsd_arm.go(2.3 KB)
📄 signal_netbsd_arm64.go(3.4 KB)
📄 signal_openbsd.go(2.18 KB)
📄 signal_openbsd_386.go(1.58 KB)
📄 signal_openbsd_amd64.go(2.04 KB)
📄 signal_openbsd_arm.go(2.12 KB)
📄 signal_openbsd_arm64.go(3.38 KB)
📄 signal_openbsd_mips64.go(3.28 KB)
📄 signal_plan9.go(1.93 KB)
📄 signal_ppc64x.go(3.64 KB)
📄 signal_riscv64.go(2.88 KB)
📄 signal_solaris.go(4.5 KB)
📄 signal_solaris_amd64.go(2.47 KB)
📄 signal_unix.go(37.82 KB)
📄 signal_windows.go(9.2 KB)
📄 signal_windows_test.go(5.73 KB)
📄 sigqueue.go(8.76 KB)
📄 sigqueue_note.go(673 B)
📄 sigqueue_plan9.go(3.39 KB)
📄 sigtab_aix.go(11.3 KB)
📄 sigtab_linux_generic.go(3.56 KB)
📄 sigtab_linux_mipsx.go(6.01 KB)
📄 sizeclasses.go(9.14 KB)
📄 sizeof_test.go(905 B)
📄 slice.go(8.94 KB)
📄 slice_test.go(10.32 KB)
📄 softfloat64.go(10.78 KB)
📄 softfloat64_test.go(4.05 KB)
📄 stack.go(41.92 KB)
📄 stack_test.go(21.05 KB)
📄 string.go(10.85 KB)
📄 string_test.go(9.62 KB)
📄 stubs.go(18.17 KB)
📄 stubs2.go(1.14 KB)
📄 stubs3.go(331 B)
📄 stubs_386.go(550 B)
📄 stubs_amd64.go(1.2 KB)
📄 stubs_arm.go(531 B)
📄 stubs_arm64.go(351 B)
📄 stubs_linux.go(663 B)
📄 stubs_mips64x.go(390 B)
📄 stubs_mipsx.go(305 B)
📄 stubs_nonlinux.go(315 B)
📄 stubs_ppc64.go(383 B)
📄 stubs_ppc64le.go(271 B)
📄 stubs_s390x.go(256 B)
📄 symtab.go(32.29 KB)
📄 symtab_test.go(6.78 KB)
📄 sys_aix_ppc64.s(7.13 KB)
📄 sys_arm.go(521 B)
📄 sys_arm64.go(469 B)
📄 sys_darwin.go(15.91 KB)
📄 sys_darwin_amd64.s(18.52 KB)
📄 sys_darwin_arm64.go(1.68 KB)
📄 sys_darwin_arm64.s(17.23 KB)
📄 sys_dragonfly_amd64.s(8.42 KB)
📄 sys_freebsd_386.s(8.98 KB)
📄 sys_freebsd_amd64.s(10.55 KB)
📄 sys_freebsd_arm.s(10.69 KB)
📄 sys_freebsd_arm64.s(10.33 KB)
📄 sys_libc.go(1.87 KB)
📄 sys_linux_386.s(18.17 KB)
📄 sys_linux_amd64.s(16.25 KB)
📄 sys_linux_arm.s(15.84 KB)
📄 sys_linux_arm64.s(15.26 KB)
📄 sys_linux_mips64x.s(13.4 KB)
📄 sys_linux_mipsx.s(11.16 KB)
📄 sys_linux_ppc64x.s(21.48 KB)
📄 sys_linux_riscv64.s(10.35 KB)
📄 sys_linux_s390x.s(10.52 KB)
📄 sys_mips64x.go(526 B)
📄 sys_mipsx.go(518 B)
📄 sys_netbsd_386.s(10.13 KB)
📄 sys_netbsd_amd64.s(9.91 KB)
📄 sys_netbsd_arm.s(10.94 KB)
📄 sys_netbsd_arm64.s(10.42 KB)
📄 sys_nonppc64x.go(271 B)
📄 sys_openbsd.go(2.3 KB)
📄 sys_openbsd1.go(1.16 KB)
📄 sys_openbsd2.go(7.31 KB)
📄 sys_openbsd3.go(3.29 KB)
📄 sys_openbsd_386.s(19.97 KB)
📄 sys_openbsd_amd64.s(16.44 KB)
📄 sys_openbsd_arm.s(18.09 KB)
📄 sys_openbsd_arm64.s(15.92 KB)
📄 sys_openbsd_mips64.s(9.22 KB)
📄 sys_plan9_386.s(4.4 KB)
📄 sys_plan9_amd64.s(4.47 KB)
📄 sys_plan9_arm.s(7.03 KB)
📄 sys_ppc64x.go(556 B)
📄 sys_riscv64.go(469 B)
📄 sys_s390x.go(469 B)
📄 sys_solaris_amd64.s(6.69 KB)
📄 sys_wasm.go(732 B)
📄 sys_wasm.s(2.65 KB)
📄 sys_windows_386.s(7.74 KB)
📄 sys_windows_amd64.s(9.16 KB)
📄 sys_windows_arm.s(12.02 KB)
📄 sys_windows_arm64.s(12.51 KB)
📄 sys_x86.go(574 B)
📄 syscall2_solaris.go(1.65 KB)
📄 syscall_aix.go(5.99 KB)
📄 syscall_solaris.go(8.26 KB)
📄 syscall_windows.go(16.48 KB)
📄 syscall_windows_test.go(32.53 KB)
📁 testdata
📄 textflag.h(1.52 KB)
📄 time.go(30.56 KB)
📄 time_fake.go(2.38 KB)
📄 time_linux_amd64.s(2.18 KB)
📄 time_nofake.go(587 B)
📄 time_test.go(2.03 KB)
📄 time_windows.h(694 B)
📄 time_windows_386.s(1.81 KB)
📄 time_windows_amd64.s(1.07 KB)
📄 time_windows_arm.s(2.07 KB)
📄 time_windows_arm64.s(1.33 KB)
📄 timeasm.go(468 B)
📄 timestub.go(595 B)
📄 timestub2.go(447 B)
📄 tls_arm.s(3.33 KB)
📄 tls_arm64.h(1.22 KB)
📄 tls_arm64.s(1.2 KB)
📄 tls_mips64x.s(759 B)
📄 tls_mipsx.s(731 B)
📄 tls_ppc64x.s(1.52 KB)
📄 tls_riscv64.s(726 B)
📄 tls_s390x.s(1.55 KB)
📄 tls_stub.go(294 B)
📄 tls_windows_amd64.go(294 B)
📁 trace
📄 trace.go(38.36 KB)
📄 traceback.go(46.51 KB)
📄 traceback_test.go(8.04 KB)
📄 type.go(18.59 KB)
📄 typekind.go(742 B)
📄 utf8.go(3.39 KB)
📄 vdso_elf32.go(2.79 KB)
📄 vdso_elf64.go(2.87 KB)
📄 vdso_freebsd.go(2.46 KB)
📄 vdso_freebsd_arm.go(454 B)
📄 vdso_freebsd_arm64.go(443 B)
📄 vdso_freebsd_x86.go(1.89 KB)
📄 vdso_in_none.go(490 B)
📄 vdso_linux.go(7.77 KB)
📄 vdso_linux_386.go(669 B)
📄 vdso_linux_amd64.go(685 B)
📄 vdso_linux_arm.go(669 B)
📄 vdso_linux_arm64.go(670 B)
📄 vdso_linux_mips64x.go(892 B)
📄 vdso_linux_ppc64x.go(712 B)
📄 vlop_386.s(2.02 KB)
📄 vlop_arm.s(7.06 KB)
📄 vlop_arm_test.go(3.75 KB)
📄 vlrt.go(5.91 KB)
📄 wincallback.go(3.52 KB)
📄 write_err.go(310 B)
📄 write_err_android.go(4.65 KB)
📄 zcallback_windows.go(155 B)
📄 zcallback_windows.s(63.05 KB)
📄 zcallback_windows_arm.s(89.34 KB)
📄 zcallback_windows_arm64.s(89.34 KB)

Editing: mpallocbits.go

// Copyright 2019 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package runtime

import (
	"runtime/internal/sys"
)

// pageBits is a bitmap representing one bit per page in a palloc chunk.
type pageBits [pallocChunkPages / 64]uint64

// get returns the value of the i'th bit in the bitmap.
func (b *pageBits) get(i uint) uint {
	return uint((b[i/64] >> (i % 64)) & 1)
}

// block64 returns the 64-bit aligned block of bits containing the i'th bit.
func (b *pageBits) block64(i uint) uint64 {
	return b[i/64]
}

// set sets bit i of pageBits.
func (b *pageBits) set(i uint) {
	b[i/64] |= 1 << (i % 64)
}

// setRange sets bits in the range [i, i+n).
func (b *pageBits) setRange(i, n uint) {
	_ = b[i/64]
	if n == 1 {
		// Fast path for the n == 1 case.
		b.set(i)
		return
	}
	// Set bits [i, j].
	j := i + n - 1
	if i/64 == j/64 {
		b[i/64] |= ((uint64(1) << n) - 1) << (i % 64)
		return
	}
	_ = b[j/64]
	// Set leading bits.
	b[i/64] |= ^uint64(0) << (i % 64)
	for k := i/64 + 1; k < j/64; k++ {
		b[k] = ^uint64(0)
	}
	// Set trailing bits.
	b[j/64] |= (uint64(1) << (j%64 + 1)) - 1
}

// setAll sets all the bits of b.
func (b *pageBits) setAll() {
	for i := range b {
		b[i] = ^uint64(0)
	}
}

// clear clears bit i of pageBits.
func (b *pageBits) clear(i uint) {
	b[i/64] &^= 1 << (i % 64)
}

// clearRange clears bits in the range [i, i+n).
func (b *pageBits) clearRange(i, n uint) {
	_ = b[i/64]
	if n == 1 {
		// Fast path for the n == 1 case.
		b.clear(i)
		return
	}
	// Clear bits [i, j].
	j := i + n - 1
	if i/64 == j/64 {
		b[i/64] &^= ((uint64(1) << n) - 1) << (i % 64)
		return
	}
	_ = b[j/64]
	// Clear leading bits.
	b[i/64] &^= ^uint64(0) << (i % 64)
	for k := i/64 + 1; k < j/64; k++ {
		b[k] = 0
	}
	// Clear trailing bits.
	b[j/64] &^= (uint64(1) << (j%64 + 1)) - 1
}

// clearAll frees all the bits of b.
func (b *pageBits) clearAll() {
	for i := range b {
		b[i] = 0
	}
}

// popcntRange counts the number of set bits in the
// range [i, i+n).
func (b *pageBits) popcntRange(i, n uint) (s uint) {
	if n == 1 {
		return uint((b[i/64] >> (i % 64)) & 1)
	}
	_ = b[i/64]
	j := i + n - 1
	if i/64 == j/64 {
		return uint(sys.OnesCount64((b[i/64] >> (i % 64)) & ((1 << n) - 1)))
	}
	_ = b[j/64]
	s += uint(sys.OnesCount64(b[i/64] >> (i % 64)))
	for k := i/64 + 1; k < j/64; k++ {
		s += uint(sys.OnesCount64(b[k]))
	}
	s += uint(sys.OnesCount64(b[j/64] & ((1 << (j%64 + 1)) - 1)))
	return
}

// pallocBits is a bitmap that tracks page allocations for at most one
// palloc chunk.
//
// The precise representation is an implementation detail, but for the
// sake of documentation, 0s are free pages and 1s are allocated pages.
type pallocBits pageBits

// summarize returns a packed summary of the bitmap in pallocBits.
func (b *pallocBits) summarize() pallocSum {
	var start, max, cur uint
	const notSetYet = ^uint(0) // sentinel for start value
	start = notSetYet
	for i := 0; i < len(b); i++ {
		x := b[i]
		if x == 0 {
			cur += 64
			continue
		}
		t := uint(sys.TrailingZeros64(x))
		l := uint(sys.LeadingZeros64(x))

// Finish any region spanning the uint64s
		cur += t
		if start == notSetYet {
			start = cur
		}
		if cur > max {
			max = cur
		}
		// Final region that might span to next uint64
		cur = l
	}
	if start == notSetYet {
		// Made it all the way through without finding a single 1 bit.
		const n = uint(64 * len(b))
		return packPallocSum(n, n, n)
	}
	if cur > max {
		max = cur
	}
	if max >= 64-2 {
		// There is no way an internal run of zeros could beat max.
		return packPallocSum(start, max, cur)
	}
	// Now look inside each uint64 for runs of zeros.
	// All uint64s must be nonzero, or we would have aborted above.
outer:
	for i := 0; i < len(b); i++ {
		x := b[i]

// Look inside this uint64. We have a pattern like
		// 000000 1xxxxx1 000000
		// We need to look inside the 1xxxxx1 for any contiguous
		// region of zeros.

// We already know the trailing zeros are no larger than max. Remove them.
		x >>= sys.TrailingZeros64(x) & 63
		if x&(x+1) == 0 { // no more zeros (except at the top).
			continue
		}

// Strategy: shrink all runs of zeros by max. If any runs of zero
		// remain, then we've identified a larger maxiumum zero run.
		p := max     // number of zeros we still need to shrink by.
		k := uint(1) // current minimum length of runs of ones in x.
		for {
			// Shrink all runs of zeros by p places (except the top zeros).
			for p > 0 {
				if p <= k {
					// Shift p ones down into the top of each run of zeros.
					x |= x >> (p & 63)
					if x&(x+1) == 0 { // no more zeros (except at the top).
						continue outer
					}
					break
				}
				// Shift k ones down into the top of each run of zeros.
				x |= x >> (k & 63)
				if x&(x+1) == 0 { // no more zeros (except at the top).
					continue outer
				}
				p -= k
				// We've just doubled the minimum length of 1-runs.
				// This allows us to shift farther in the next iteration.
				k *= 2
			}

// The length of the lowest-order zero run is an increment to our maximum.
			j := uint(sys.TrailingZeros64(^x)) // count contiguous trailing ones
			x >>= j & 63                       // remove trailing ones
			j = uint(sys.TrailingZeros64(x))   // count contiguous trailing zeros
			x >>= j & 63                       // remove zeros
			max += j                           // we have a new maximum!
			if x&(x+1) == 0 {                  // no more zeros (except at the top).
				continue outer
			}
			p = j // remove j more zeros from each zero run.
		}
	}
	return packPallocSum(start, max, cur)
}

// find searches for npages contiguous free pages in pallocBits and returns
// the index where that run starts, as well as the index of the first free page
// it found in the search. searchIdx represents the first known free page and
// where to begin the next search from.
//
// If find fails to find any free space, it returns an index of ^uint(0) and
// the new searchIdx should be ignored.
//
// Note that if npages == 1, the two returned values will always be identical.
func (b *pallocBits) find(npages uintptr, searchIdx uint) (uint, uint) {
	if npages == 1 {
		addr := b.find1(searchIdx)
		return addr, addr
	} else if npages <= 64 {
		return b.findSmallN(npages, searchIdx)
	}
	return b.findLargeN(npages, searchIdx)
}

// find1 is a helper for find which searches for a single free page
// in the pallocBits and returns the index.
//
// See find for an explanation of the searchIdx parameter.
func (b *pallocBits) find1(searchIdx uint) uint {
	_ = b[0] // lift nil check out of loop
	for i := searchIdx / 64; i < uint(len(b)); i++ {
		x := b[i]
		if ^x == 0 {
			continue
		}
		return i*64 + uint(sys.TrailingZeros64(^x))
	}
	return ^uint(0)
}

// findSmallN is a helper for find which searches for npages contiguous free pages
// in this pallocBits and returns the index where that run of contiguous pages
// starts as well as the index of the first free page it finds in its search.
//
// See find for an explanation of the searchIdx parameter.
//
// Returns a ^uint(0) index on failure and the new searchIdx should be ignored.
//
// findSmallN assumes npages <= 64, where any such contiguous run of pages
// crosses at most one aligned 64-bit boundary in the bits.
func (b *pallocBits) findSmallN(npages uintptr, searchIdx uint) (uint, uint) {
	end, newSearchIdx := uint(0), ^uint(0)
	for i := searchIdx / 64; i < uint(len(b)); i++ {
		bi := b[i]
		if ^bi == 0 {
			end = 0
			continue
		}
		// First see if we can pack our allocation in the trailing
		// zeros plus the end of the last 64 bits.
		if newSearchIdx == ^uint(0) {
			// The new searchIdx is going to be at these 64 bits after any
			// 1s we file, so count trailing 1s.
			newSearchIdx = i*64 + uint(sys.TrailingZeros64(^bi))
		}
		start := uint(sys.TrailingZeros64(bi))
		if end+start >= uint(npages) {
			return i*64 - end, newSearchIdx
		}
		// Next, check the interior of the 64-bit chunk.
		j := findBitRange64(^bi, uint(npages))
		if j < 64 {
			return i*64 + j, newSearchIdx
		}
		end = uint(sys.LeadingZeros64(bi))
	}
	return ^uint(0), newSearchIdx
}

// findLargeN is a helper for find which searches for npages contiguous free pages
// in this pallocBits and returns the index where that run starts, as well as the
// index of the first free page it found it its search.
//
// See alloc for an explanation of the searchIdx parameter.
//
// Returns a ^uint(0) index on failure and the new searchIdx should be ignored.
//
// findLargeN assumes npages > 64, where any such run of free pages
// crosses at least one aligned 64-bit boundary in the bits.
func (b *pallocBits) findLargeN(npages uintptr, searchIdx uint) (uint, uint) {
	start, size, newSearchIdx := ^uint(0), uint(0), ^uint(0)
	for i := searchIdx / 64; i < uint(len(b)); i++ {
		x := b[i]
		if x == ^uint64(0) {
			size = 0
			continue
		}
		if newSearchIdx == ^uint(0) {
			// The new searchIdx is going to be at these 64 bits after any
			// 1s we file, so count trailing 1s.
			newSearchIdx = i*64 + uint(sys.TrailingZeros64(^x))
		}
		if size == 0 {
			size = uint(sys.LeadingZeros64(x))
			start = i*64 + 64 - size
			continue
		}
		s := uint(sys.TrailingZeros64(x))
		if s+size >= uint(npages) {
			size += s
			return start, newSearchIdx
		}
		if s < 64 {
			size = uint(sys.LeadingZeros64(x))
			start = i*64 + 64 - size
			continue
		}
		size += 64
	}
	if size < uint(npages) {
		return ^uint(0), newSearchIdx
	}
	return start, newSearchIdx
}

// allocRange allocates the range [i, i+n).
func (b *pallocBits) allocRange(i, n uint) {
	(*pageBits)(b).setRange(i, n)
}

// allocAll allocates all the bits of b.
func (b *pallocBits) allocAll() {
	(*pageBits)(b).setAll()
}

// free1 frees a single page in the pallocBits at i.
func (b *pallocBits) free1(i uint) {
	(*pageBits)(b).clear(i)
}

// free frees the range [i, i+n) of pages in the pallocBits.
func (b *pallocBits) free(i, n uint) {
	(*pageBits)(b).clearRange(i, n)
}

// freeAll frees all the bits of b.
func (b *pallocBits) freeAll() {
	(*pageBits)(b).clearAll()
}

// pages64 returns a 64-bit bitmap representing a block of 64 pages aligned
// to 64 pages. The returned block of pages is the one containing the i'th
// page in this pallocBits. Each bit represents whether the page is in-use.
func (b *pallocBits) pages64(i uint) uint64 {
	return (*pageBits)(b).block64(i)
}

// findBitRange64 returns the bit index of the first set of
// n consecutive 1 bits. If no consecutive set of 1 bits of
// size n may be found in c, then it returns an integer >= 64.
// n must be > 0.
func findBitRange64(c uint64, n uint) uint {
	// This implementation is based on shrinking the length of
	// runs of contiguous 1 bits. We remove the top n-1 1 bits
	// from each run of 1s, then look for the first remaining 1 bit.
	p := n - 1   // number of 1s we want to remove.
	k := uint(1) // current minimum width of runs of 0 in c.
	for p > 0 {
		if p <= k {
			// Shift p 0s down into the top of each run of 1s.
			c &= c >> (p & 63)
			break
		}
		// Shift k 0s down into the top of each run of 1s.
		c &= c >> (k & 63)
		if c == 0 {
			return 64
		}
		p -= k
		// We've just doubled the minimum length of 0-runs.
		// This allows us to shift farther in the next iteration.
		k *= 2
	}
	// Find first remaining 1.
	// Since we shrunk from the top down, the first 1 is in
	// its correct original position.
	return uint(sys.TrailingZeros64(c))
}

// pallocData encapsulates pallocBits and a bitmap for
// whether or not a given page is scavenged in a single
// structure. It's effectively a pallocBits with
// additional functionality.
//
// Update the comment on (*pageAlloc).chunks should this
// structure change.
type pallocData struct {
	pallocBits
	scavenged pageBits
}

// allocRange sets bits [i, i+n) in the bitmap to 1 and
// updates the scavenged bits appropriately.
func (m *pallocData) allocRange(i, n uint) {
	// Clear the scavenged bits when we alloc the range.
	m.pallocBits.allocRange(i, n)
	m.scavenged.clearRange(i, n)
}

// allocAll sets every bit in the bitmap to 1 and updates
// the scavenged bits appropriately.
func (m *pallocData) allocAll() {
	// Clear the scavenged bits when we alloc the range.
	m.pallocBits.allocAll()
	m.scavenged.clearAll()
}

X7ROOT File Manager

Editing: mpallocbits.go

Upload File

Create Folder