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Current Path: /opt/golang/1.22.0/src/runtime

📁 ..
📄 HACKING.md(13.85 KB)
📄 Makefile(178 B)
📄 abi_test.go(2.83 KB)
📄 alg.go(10.99 KB)
📄 align_runtime_test.go(1.82 KB)
📄 align_test.go(5.37 KB)
📄 arena.go(31.66 KB)
📄 arena_test.go(13.39 KB)
📁 asan
📄 asan.go(1.55 KB)
📄 asan0.go(760 B)
📄 asan_amd64.s(2.45 KB)
📄 asan_arm64.s(2.14 KB)
📄 asan_loong64.s(2.12 KB)
📄 asan_ppc64le.s(2.75 KB)
📄 asan_riscv64.s(1.92 KB)
📄 asm.s(719 B)
📄 asm_386.s(42.54 KB)
📄 asm_amd64.h(631 B)
📄 asm_amd64.s(60.09 KB)
📄 asm_arm.s(31.58 KB)
📄 asm_arm64.s(43.33 KB)
📄 asm_loong64.s(27.58 KB)
📄 asm_mips64x.s(24.34 KB)
📄 asm_mipsx.s(25.82 KB)
📄 asm_ppc64x.h(1.93 KB)
📄 asm_ppc64x.s(45.19 KB)
📄 asm_riscv64.s(26.97 KB)
📄 asm_s390x.s(27.55 KB)
📄 asm_wasm.s(11.82 KB)
📄 atomic_arm64.s(259 B)
📄 atomic_loong64.s(245 B)
📄 atomic_mips64x.s(300 B)
📄 atomic_mipsx.s(262 B)
📄 atomic_pointer.go(3.66 KB)
📄 atomic_ppc64x.s(437 B)
📄 atomic_riscv64.s(275 B)
📄 auxv_none.go(298 B)
📄 callers_test.go(12.13 KB)
📁 cgo
📄 cgo.go(2.5 KB)
📄 cgo_mmap.go(2.42 KB)
📄 cgo_ppc64x.go(418 B)
📄 cgo_sigaction.go(3.28 KB)
📄 cgocall.go(23.23 KB)
📄 cgocallback.go(317 B)
📄 cgocheck.go(7.97 KB)
📄 chan.go(23.74 KB)
📄 chan_test.go(23.44 KB)
📄 chanbarrier_test.go(1.4 KB)
📄 checkptr.go(3.29 KB)
📄 checkptr_test.go(2.86 KB)
📄 closure_test.go(937 B)
📄 compiler.go(410 B)
📄 complex.go(1.59 KB)
📄 complex_test.go(1.05 KB)
📄 conv_wasm_test.go(2.96 KB)
📄 coro.go(4.92 KB)
📁 coverage
📄 covercounter.go(749 B)
📄 covermeta.go(2.4 KB)
📄 cpuflags.go(810 B)
📄 cpuflags_amd64.go(533 B)
📄 cpuflags_arm64.go(312 B)
📄 cpuprof.go(7.94 KB)
📄 cputicks.go(437 B)
📄 crash_cgo_test.go(23.35 KB)
📄 crash_test.go(23.12 KB)
📄 crash_unix_test.go(9.19 KB)
📄 create_file_nounix.go(305 B)
📄 create_file_unix.go(368 B)
📁 debug
📄 debug.go(3.53 KB)
📄 debug_test.go(7.99 KB)
📄 debugcall.go(6.75 KB)
📄 debuglog.go(18.24 KB)
📄 debuglog_off.go(357 B)
📄 debuglog_on.go(1.09 KB)
📄 debuglog_test.go(4.9 KB)
📄 defer_test.go(11.4 KB)
📄 defs1_linux.go(845 B)
📄 defs1_netbsd_386.go(2.91 KB)
📄 defs1_netbsd_amd64.go(3.14 KB)
📄 defs1_netbsd_arm.go(3.03 KB)
📄 defs1_netbsd_arm64.go(3.25 KB)
📄 defs1_solaris_amd64.go(4.01 KB)
📄 defs2_linux.go(3.22 KB)
📄 defs3_linux.go(1.09 KB)
📄 defs_aix.go(4.17 KB)
📄 defs_aix_ppc64.go(3.63 KB)
📄 defs_arm_linux.go(2.67 KB)
📄 defs_darwin.go(4.18 KB)
📄 defs_darwin_amd64.go(6.34 KB)
📄 defs_darwin_arm64.go(4.17 KB)
📄 defs_dragonfly.go(2.73 KB)
📄 defs_dragonfly_amd64.go(3.41 KB)
📄 defs_freebsd.go(3.96 KB)
📄 defs_freebsd_386.go(4.52 KB)
📄 defs_freebsd_amd64.go(4.79 KB)
📄 defs_freebsd_arm.go(3.92 KB)
📄 defs_freebsd_arm64.go(4.18 KB)
📄 defs_freebsd_riscv64.go(4.19 KB)
📄 defs_illumos_amd64.go(285 B)
📄 defs_linux.go(2.92 KB)
📄 defs_linux_386.go(4.2 KB)
📄 defs_linux_amd64.go(4.7 KB)
📄 defs_linux_arm.go(3.89 KB)
📄 defs_linux_arm64.go(3.62 KB)
📄 defs_linux_loong64.go(3.43 KB)
📄 defs_linux_mips64x.go(3.6 KB)
📄 defs_linux_mipsx.go(3.6 KB)
📄 defs_linux_ppc64.go(3.69 KB)
📄 defs_linux_ppc64le.go(3.69 KB)
📄 defs_linux_riscv64.go(3.81 KB)
📄 defs_linux_s390x.go(3.16 KB)
📄 defs_netbsd.go(2.83 KB)
📄 defs_netbsd_386.go(855 B)
📄 defs_netbsd_amd64.go(1.01 KB)
📄 defs_netbsd_arm.go(764 B)
📄 defs_openbsd.go(3.06 KB)
📄 defs_openbsd_386.go(2.91 KB)
📄 defs_openbsd_amd64.go(3.11 KB)
📄 defs_openbsd_arm.go(3.03 KB)
📄 defs_openbsd_arm64.go(2.78 KB)
📄 defs_openbsd_mips64.go(2.75 KB)
📄 defs_openbsd_ppc64.go(3 KB)
📄 defs_openbsd_riscv64.go(2.89 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(3.32 KB)
📄 defs_solaris_amd64.go(1004 B)
📄 defs_windows.go(2.25 KB)
📄 defs_windows_386.go(2.28 KB)
📄 defs_windows_amd64.go(3.19 KB)
📄 defs_windows_arm.go(2.57 KB)
📄 defs_windows_arm64.go(3.07 KB)
📄 duff_386.s(8.24 KB)
📄 duff_amd64.s(5.64 KB)
📄 duff_arm.s(7.11 KB)
📄 duff_arm64.s(5.27 KB)
📄 duff_loong64.s(11.9 KB)
📄 duff_mips64x.s(11.28 KB)
📄 duff_ppc64x.s(7.06 KB)
📄 duff_riscv64.s(11.4 KB)
📄 duff_s390x.s(507 B)
📄 ehooks_test.go(2.04 KB)
📄 env_plan9.go(3 KB)
📄 env_posix.go(1.56 KB)
📄 env_test.go(1.16 KB)
📄 error.go(9.29 KB)
📄 example_test.go(1.55 KB)
📄 exithook.go(2.32 KB)
📄 export_aix_test.go(207 B)
📄 export_arm_test.go(226 B)
📄 export_darwin_test.go(207 B)
📄 export_debug_amd64_test.go(3.6 KB)
📄 export_debug_arm64_test.go(3.49 KB)
📄 export_debug_ppc64le_test.go(3.5 KB)
📄 export_debug_test.go(5.07 KB)
📄 export_debuglog_test.go(1.27 KB)
📄 export_linux_test.go(378 B)
📄 export_mmap_test.go(429 B)
📄 export_pipe2_test.go(310 B)
📄 export_pipe_test.go(219 B)
📄 export_test.go(50.52 KB)
📄 export_unix_test.go(2.27 KB)
📄 export_windows_test.go(903 B)
📄 extern.go(18.58 KB)
📄 fastlog2.go(1.22 KB)
📄 fastlog2_test.go(784 B)
📄 fastlog2table.go(904 B)
📄 fds_nonunix.go(256 B)
📄 fds_test.go(1.43 KB)
📄 fds_unix.go(1.27 KB)
📄 float.go(1.35 KB)
📄 float_test.go(699 B)
📄 funcdata.h(2.53 KB)
📄 gc_test.go(20.32 KB)
📄 gcinfo_test.go(5.95 KB)
📄 go_tls.h(366 B)
📄 hash32.go(1.58 KB)
📄 hash64.go(1.95 KB)
📄 hash_test.go(17.24 KB)
📄 heap_test.go(529 B)
📄 heapdump.go(17.88 KB)
📄 histogram.go(7.3 KB)
📄 histogram_test.go(3.51 KB)
📄 iface.go(20.92 KB)
📄 iface_test.go(7.45 KB)
📄 import_test.go(1.42 KB)
📄 importx_test.go(763 B)
📁 internal
📄 lfstack.go(2.03 KB)
📄 lfstack_test.go(2.74 KB)
📄 libfuzzer.go(6.34 KB)
📄 libfuzzer_amd64.s(5.03 KB)
📄 libfuzzer_arm64.s(3.15 KB)
📄 lock_futex.go(5.4 KB)
📄 lock_js.go(7.28 KB)
📄 lock_sema.go(6.75 KB)
📄 lock_wasip1.go(2.01 KB)
📄 lockrank.go(18.19 KB)
📄 lockrank_off.go(1.17 KB)
📄 lockrank_on.go(10.27 KB)
📄 lockrank_test.go(856 B)
📄 malloc.go(58.5 KB)
📄 malloc_test.go(10.64 KB)
📄 map.go(52.17 KB)
📄 map_benchmark_test.go(10.59 KB)
📄 map_fast32.go(12.74 KB)
📄 map_fast64.go(12.92 KB)
📄 map_faststr.go(14.32 KB)
📄 map_test.go(31.75 KB)
📄 mbarrier.go(13.78 KB)
📄 mbitmap.go(22.54 KB)
📄 mbitmap_allocheaders.go(44.67 KB)
📄 mbitmap_noallocheaders.go(28.95 KB)
📄 mcache.go(10 KB)
📄 mcentral.go(8.05 KB)
📄 mcheckmark.go(2.85 KB)
📄 mem.go(6.72 KB)
📄 mem_aix.go(2.01 KB)
📄 mem_bsd.go(2.21 KB)
📄 mem_darwin.go(1.96 KB)
📄 mem_js.go(457 B)
📄 mem_linux.go(4.98 KB)
📄 mem_plan9.go(447 B)
📄 mem_sbrk.go(4.19 KB)
📄 mem_wasip1.go(392 B)
📄 mem_wasm.go(488 B)
📄 mem_windows.go(3.88 KB)
📄 memclr_386.s(2.38 KB)
📄 memclr_amd64.s(4.91 KB)
📄 memclr_arm.s(2.6 KB)
📄 memclr_arm64.s(3.62 KB)
📄 memclr_loong64.s(843 B)
📄 memclr_mips64x.s(1.72 KB)
📄 memclr_mipsx.s(1.32 KB)
📄 memclr_plan9_386.s(983 B)
📄 memclr_plan9_amd64.s(511 B)
📄 memclr_ppc64x.s(4.44 KB)
📄 memclr_riscv64.s(1.71 KB)
📄 memclr_s390x.s(1.96 KB)
📄 memclr_wasm.s(485 B)
📄 memmove_386.s(4.42 KB)
📄 memmove_amd64.s(12.48 KB)
📄 memmove_arm.s(5.9 KB)
📄 memmove_arm64.s(5.96 KB)
📄 memmove_linux_amd64_test.go(1.53 KB)
📄 memmove_loong64.s(1.87 KB)
📄 memmove_mips64x.s(1.83 KB)
📄 memmove_mipsx.s(4.4 KB)
📄 memmove_plan9_386.s(3.06 KB)
📄 memmove_plan9_amd64.s(3.04 KB)
📄 memmove_ppc64x.s(4.91 KB)
📄 memmove_riscv64.s(5.46 KB)
📄 memmove_s390x.s(2.92 KB)
📄 memmove_test.go(21.23 KB)
📄 memmove_wasm.s(479 B)
📁 metrics
📄 metrics.go(26.01 KB)
📄 metrics_test.go(42.46 KB)
📄 mfinal.go(18.91 KB)
📄 mfinal_test.go(5.57 KB)
📄 mfixalloc.go(3.13 KB)
📄 mgc.go(59.29 KB)
📄 mgclimit.go(17.28 KB)
📄 mgclimit_test.go(9.02 KB)
📄 mgcmark.go(53.07 KB)
📄 mgcpacer.go(55.36 KB)
📄 mgcpacer_test.go(39.26 KB)
📄 mgcscavenge.go(52.32 KB)
📄 mgcscavenge_test.go(25.2 KB)
📄 mgcstack.go(10.58 KB)
📄 mgcsweep.go(32.26 KB)
📄 mgcwork.go(12.89 KB)
📄 mheap.go(72.64 KB)
📄 minmax.go(1.46 KB)
📄 minmax_test.go(3.31 KB)
📄 mkduff.go(8.04 KB)
📄 mkfastlog2table.go(3.08 KB)
📄 mklockrank.go(9 KB)
📄 mkpreempt.go(15.33 KB)
📄 mksizeclasses.go(9.52 KB)
📄 mmap.go(844 B)
📄 mpagealloc.go(39.23 KB)
📄 mpagealloc_32bit.go(4.56 KB)
📄 mpagealloc_64bit.go(9.34 KB)
📄 mpagealloc_test.go(32.59 KB)
📄 mpagecache.go(5.59 KB)
📄 mpagecache_test.go(10.79 KB)
📄 mpallocbits.go(12.58 KB)
📄 mpallocbits_test.go(13.69 KB)
📄 mprof.go(47.4 KB)
📄 mranges.go(14.46 KB)
📄 mranges_test.go(5.68 KB)
📁 msan
📄 msan.go(1.5 KB)
📄 msan0.go(725 B)
📄 msan_amd64.s(2.3 KB)
📄 msan_arm64.s(1.98 KB)
📄 msan_loong64.s(1.96 KB)
📄 msize_allocheaders.go(1.32 KB)
📄 msize_noallocheaders.go(915 B)
📄 mspanset.go(13.12 KB)
📄 mstats.go(33.81 KB)
📄 mwbbuf.go(8.13 KB)
📄 nbpipe_pipe.go(405 B)
📄 nbpipe_pipe2.go(344 B)
📄 nbpipe_pipe_test.go(706 B)
📄 nbpipe_test.go(1.99 KB)
📄 net_plan9.go(645 B)
📄 netpoll.go(20.55 KB)
📄 netpoll_aix.go(5.06 KB)
📄 netpoll_epoll.go(4.4 KB)
📄 netpoll_fake.go(664 B)
📄 netpoll_kqueue.go(5.62 KB)
📄 netpoll_os_test.go(520 B)
📄 netpoll_solaris.go(11.2 KB)
📄 netpoll_stub.go(1.48 KB)
📄 netpoll_wasip1.go(6.08 KB)
📄 netpoll_windows.go(4.01 KB)
📄 nonwindows_stub.go(729 B)
📄 norace_linux_test.go(915 B)
📄 norace_test.go(983 B)
📄 numcpu_freebsd_test.go(381 B)
📄 os2_aix.go(20.88 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(3.94 KB)
📄 os3_solaris.go(17.59 KB)
📄 os_aix.go(8.89 KB)
📄 os_android.go(463 B)
📄 os_darwin.go(11.92 KB)
📄 os_darwin_arm64.go(329 B)
📄 os_dragonfly.go(7.14 KB)
📄 os_freebsd.go(11.64 KB)
📄 os_freebsd2.go(603 B)
📄 os_freebsd_amd64.go(658 B)
📄 os_freebsd_arm.go(1.45 KB)
📄 os_freebsd_arm64.go(320 B)
📄 os_freebsd_noauxv.go(241 B)
📄 os_freebsd_riscv64.go(198 B)
📄 os_illumos.go(3.93 KB)
📄 os_js.go(767 B)
📄 os_linux.go(25.71 KB)
📄 os_linux_arm.go(1.51 KB)
📄 os_linux_arm64.go(478 B)
📄 os_linux_be64.go(806 B)
📄 os_linux_generic.go(870 B)
📄 os_linux_loong64.go(263 B)
📄 os_linux_mips64x.go(996 B)
📄 os_linux_mipsx.go(987 B)
📄 os_linux_noauxv.go(337 B)
📄 os_linux_novdso.go(347 B)
📄 os_linux_ppc64x.go(526 B)
📄 os_linux_riscv64.go(198 B)
📄 os_linux_s390x.go(825 B)
📄 os_linux_x86.go(234 B)
📄 os_netbsd.go(10.12 KB)
📄 os_netbsd_386.go(617 B)
📄 os_netbsd_amd64.go(614 B)
📄 os_netbsd_arm.go(1.07 KB)
📄 os_netbsd_arm64.go(769 B)
📄 os_nonopenbsd.go(437 B)
📄 os_only_solaris.go(357 B)
📄 os_openbsd.go(6.23 KB)
📄 os_openbsd_arm.go(662 B)
📄 os_openbsd_arm64.go(329 B)
📄 os_openbsd_libc.go(1.49 KB)
📄 os_openbsd_mips64.go(329 B)
📄 os_openbsd_syscall.go(1.36 KB)
📄 os_openbsd_syscall1.go(441 B)
📄 os_openbsd_syscall2.go(2.51 KB)
📄 os_plan9.go(10.18 KB)
📄 os_plan9_arm.go(375 B)
📄 os_solaris.go(6.62 KB)
📄 os_unix.go(436 B)
📄 os_unix_nonlinux.go(374 B)
📄 os_wasip1.go(7 KB)
📄 os_wasm.go(3.15 KB)
📄 os_windows.go(41.39 KB)
📄 os_windows_arm.go(511 B)
📄 os_windows_arm64.go(339 B)
📄 pagetrace_off.go(550 B)
📄 pagetrace_on.go(10.36 KB)
📄 panic.go(41.85 KB)
📄 panic32.go(4.8 KB)
📄 panic_test.go(1.71 KB)
📄 panicnil_test.go(1.25 KB)
📄 pinner.go(10.98 KB)
📄 pinner_test.go(11.04 KB)
📄 plugin.go(4.37 KB)
📁 pprof
📄 preempt.go(15.03 KB)
📄 preempt_386.s(824 B)
📄 preempt_amd64.s(1.67 KB)
📄 preempt_arm.s(1.49 KB)
📄 preempt_arm64.s(1.97 KB)
📄 preempt_loong64.s(2.41 KB)
📄 preempt_mips64x.s(2.72 KB)
📄 preempt_mipsx.s(2.68 KB)
📄 preempt_nonwindows.go(290 B)
📄 preempt_ppc64x.s(2.72 KB)
📄 preempt_riscv64.s(2.26 KB)
📄 preempt_s390x.s(1.01 KB)
📄 preempt_wasm.s(176 B)
📄 print.go(5.92 KB)
📄 proc.go(204.28 KB)
📄 proc_runtime_test.go(1.38 KB)
📄 proc_test.go(25.85 KB)
📄 profbuf.go(18.26 KB)
📄 profbuf_test.go(8.54 KB)
📄 proflabel.go(1.52 KB)
📁 race
📄 race.go(18.81 KB)
📄 race0.go(2.79 KB)
📄 race_amd64.s(13.94 KB)
📄 race_arm64.s(14.21 KB)
📄 race_ppc64le.s(15.93 KB)
📄 race_s390x.s(11.99 KB)
📄 rand.go(7.11 KB)
📄 rand_test.go(1.95 KB)
📄 rdebug.go(550 B)
📄 retry.go(760 B)
📄 rt0_aix_ppc64.s(4.09 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(1.69 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(1.88 KB)
📄 rt0_freebsd_riscv64.s(2.72 KB)
📄 rt0_illumos_amd64.s(311 B)
📄 rt0_ios_amd64.s(425 B)
📄 rt0_ios_arm64.s(425 B)
📄 rt0_js_wasm.s(1.53 KB)
📄 rt0_linux_386.s(450 B)
📄 rt0_linux_amd64.s(307 B)
📄 rt0_linux_arm.s(1007 B)
📄 rt0_linux_arm64.s(1.81 KB)
📄 rt0_linux_loong64.s(2.01 KB)
📄 rt0_linux_mips64x.s(1014 B)
📄 rt0_linux_mipsx.s(797 B)
📄 rt0_linux_ppc64.s(847 B)
📄 rt0_linux_ppc64le.s(2.89 KB)
📄 rt0_linux_riscv64.s(2.65 KB)
📄 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(1.8 KB)
📄 rt0_openbsd_386.s(454 B)
📄 rt0_openbsd_amd64.s(311 B)
📄 rt0_openbsd_arm.s(298 B)
📄 rt0_openbsd_arm64.s(1.96 KB)
📄 rt0_openbsd_mips64.s(976 B)
📄 rt0_openbsd_ppc64.s(370 B)
📄 rt0_openbsd_riscv64.s(372 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_wasip1_wasm.s(387 B)
📄 rt0_windows_386.s(1.28 KB)
📄 rt0_windows_amd64.s(1.14 KB)
📄 rt0_windows_arm.s(386 B)
📄 rt0_windows_arm64.s(733 B)
📄 runtime-gdb.py(15.44 KB)
📄 runtime-gdb_test.go(24.04 KB)
📄 runtime-gdb_unix_test.go(9.4 KB)
📄 runtime-lldb_test.go(4.95 KB)
📄 runtime-seh_windows_test.go(4.7 KB)
📄 runtime.go(7.1 KB)
📄 runtime1.go(16.66 KB)
📄 runtime2.go(46.16 KB)
📄 runtime_boring.go(606 B)
📄 runtime_linux_test.go(1.77 KB)
📄 runtime_mmap_test.go(1.77 KB)
📄 runtime_test.go(11.81 KB)
📄 runtime_unix_test.go(1.22 KB)
📄 rwmutex.go(5 KB)
📄 rwmutex_test.go(4.21 KB)
📄 security_aix.go(449 B)
📄 security_issetugid.go(502 B)
📄 security_linux.go(335 B)
📄 security_nonunix.go(256 B)
📄 security_test.go(4.09 KB)
📄 security_unix.go(818 B)
📄 select.go(14.82 KB)
📄 sema.go(18.43 KB)
📄 sema_test.go(4.21 KB)
📄 semasleep_test.go(3.46 KB)
📄 sigaction.go(489 B)
📄 signal_386.go(1.72 KB)
📄 signal_aix_ppc64.go(3.54 KB)
📄 signal_amd64.go(2.73 KB)
📄 signal_arm.go(2.54 KB)
📄 signal_arm64.go(3.83 KB)
📄 signal_darwin.go(2.13 KB)
📄 signal_darwin_amd64.go(4 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(3.24 KB)
📄 signal_freebsd_riscv64.go(3.08 KB)
📄 signal_linux_386.go(1.59 KB)
📄 signal_linux_amd64.go(2.05 KB)
📄 signal_linux_arm.go(2.12 KB)
📄 signal_linux_arm64.go(2.95 KB)
📄 signal_linux_loong64.go(3.22 KB)
📄 signal_linux_mips64x.go(3.35 KB)
📄 signal_linux_mipsx.go(3.67 KB)
📄 signal_linux_ppc64x.go(3.5 KB)
📄 signal_linux_riscv64.go(2.92 KB)
📄 signal_linux_s390x.go(4.49 KB)
📄 signal_loong64.go(3.01 KB)
📄 signal_mips64x.go(3.18 KB)
📄 signal_mipsx.go(3.06 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(3.39 KB)
📄 signal_openbsd_mips64.go(3.28 KB)
📄 signal_openbsd_ppc64.go(3.53 KB)
📄 signal_openbsd_riscv64.go(3.12 KB)
📄 signal_plan9.go(1.93 KB)
📄 signal_ppc64x.go(3.71 KB)
📄 signal_riscv64.go(2.91 KB)
📄 signal_solaris.go(4.5 KB)
📄 signal_solaris_amd64.go(2.47 KB)
📄 signal_unix.go(44.11 KB)
📄 signal_windows.go(14.48 KB)
📄 signal_windows_test.go(8.98 KB)
📄 sigqueue.go(7.62 KB)
📄 sigqueue_note.go(648 B)
📄 sigqueue_plan9.go(3.25 KB)
📄 sigtab_aix.go(11.3 KB)
📄 sigtab_linux_generic.go(3.52 KB)
📄 sigtab_linux_mipsx.go(5.95 KB)
📄 sizeclasses.go(9.17 KB)
📄 sizeof_test.go(1003 B)
📄 slice.go(11.23 KB)
📄 slice_test.go(10.32 KB)
📄 softfloat64.go(11.54 KB)
📄 softfloat64_test.go(4.04 KB)
📄 stack.go(40.02 KB)
📄 stack_test.go(23.14 KB)
📄 start_line_amd64_test.go(647 B)
📄 start_line_test.go(2.58 KB)
📄 stkframe.go(9.88 KB)
📄 string.go(13.35 KB)
📄 string_test.go(13.33 KB)
📄 stubs.go(17.39 KB)
📄 stubs2.go(1.15 KB)
📄 stubs3.go(324 B)
📄 stubs_386.go(708 B)
📄 stubs_amd64.go(1.38 KB)
📄 stubs_arm.go(689 B)
📄 stubs_arm64.go(700 B)
📄 stubs_linux.go(650 B)
📄 stubs_loong64.go(638 B)
📄 stubs_mips64x.go(522 B)
📄 stubs_mipsx.go(441 B)
📄 stubs_nonlinux.go(298 B)
📄 stubs_ppc64.go(302 B)
📄 stubs_ppc64x.go(688 B)
📄 stubs_riscv64.go(695 B)
📄 stubs_s390x.go(414 B)
📄 symtab.go(34.76 KB)
📄 symtab_test.go(7.48 KB)
📄 symtabinl.go(3.81 KB)
📄 symtabinl_test.go(2.97 KB)
📄 sys_aix_ppc64.s(7.42 KB)
📄 sys_arm.go(521 B)
📄 sys_arm64.go(469 B)
📄 sys_darwin.go(22.56 KB)
📄 sys_darwin_amd64.s(19.65 KB)
📄 sys_darwin_arm64.go(1.74 KB)
📄 sys_darwin_arm64.s(18.28 KB)
📄 sys_dragonfly_amd64.s(8.31 KB)
📄 sys_freebsd_386.s(9.41 KB)
📄 sys_freebsd_amd64.s(12.67 KB)
📄 sys_freebsd_arm.s(10.38 KB)
📄 sys_freebsd_arm64.s(9.49 KB)
📄 sys_freebsd_riscv64.s(8.92 KB)
📄 sys_libc.go(1.84 KB)
📄 sys_linux_386.s(17.89 KB)
📄 sys_linux_amd64.s(15.74 KB)
📄 sys_linux_arm.s(13.5 KB)
📄 sys_linux_arm64.s(16.71 KB)
📄 sys_linux_loong64.s(14.16 KB)
📄 sys_linux_mips64x.s(11.96 KB)
📄 sys_linux_mipsx.s(9.69 KB)
📄 sys_linux_ppc64x.s(18.09 KB)
📄 sys_linux_riscv64.s(11.48 KB)
📄 sys_linux_s390x.s(12.49 KB)
📄 sys_loong64.go(489 B)
📄 sys_mips64x.go(500 B)
📄 sys_mipsx.go(496 B)
📄 sys_netbsd_386.s(9.61 KB)
📄 sys_netbsd_amd64.s(9.78 KB)
📄 sys_netbsd_arm.s(10.58 KB)
📄 sys_netbsd_arm64.s(9.47 KB)
📄 sys_nonppc64x.go(245 B)
📄 sys_openbsd.go(2.59 KB)
📄 sys_openbsd1.go(1.23 KB)
📄 sys_openbsd2.go(8.67 KB)
📄 sys_openbsd3.go(3.37 KB)
📄 sys_openbsd_386.s(20.4 KB)
📄 sys_openbsd_amd64.s(15.54 KB)
📄 sys_openbsd_arm.s(18.46 KB)
📄 sys_openbsd_arm64.s(15.05 KB)
📄 sys_openbsd_mips64.s(8.81 KB)
📄 sys_openbsd_ppc64.s(15.3 KB)
📄 sys_openbsd_riscv64.s(16.8 KB)
📄 sys_plan9_386.s(4.48 KB)
📄 sys_plan9_amd64.s(4.56 KB)
📄 sys_plan9_arm.s(7.03 KB)
📄 sys_ppc64x.go(532 B)
📄 sys_riscv64.go(469 B)
📄 sys_s390x.go(469 B)
📄 sys_solaris_amd64.s(6.42 KB)
📄 sys_wasm.go(758 B)
📄 sys_wasm.s(1.43 KB)
📄 sys_windows_386.s(6.46 KB)
📄 sys_windows_amd64.s(8.41 KB)
📄 sys_windows_arm.s(7.72 KB)
📄 sys_windows_arm64.s(6.8 KB)
📄 sys_x86.go(552 B)
📄 syscall2_solaris.go(1.85 KB)
📄 syscall_aix.go(6.33 KB)
📄 syscall_solaris.go(8.38 KB)
📄 syscall_unix_test.go(635 B)
📄 syscall_windows.go(16.57 KB)
📄 syscall_windows_test.go(32.45 KB)
📄 tagptr.go(496 B)
📄 tagptr_32bit.go(927 B)
📄 tagptr_64bit.go(3.23 KB)
📄 test_amd64.go(196 B)
📄 test_amd64.s(316 B)
📄 test_stubs.go(218 B)
📁 testdata
📄 textflag.h(1.47 KB)
📄 time.go(30.57 KB)
📄 time_fake.go(2.5 KB)
📄 time_linux_amd64.s(2.02 KB)
📄 time_nofake.go(709 B)
📄 time_test.go(2.04 KB)
📄 time_windows.h(753 B)
📄 time_windows_386.s(1.71 KB)
📄 time_windows_amd64.s(786 B)
📄 time_windows_arm.s(1.97 KB)
📄 time_windows_arm64.s(906 B)
📄 timeasm.go(418 B)
📄 timestub.go(532 B)
📄 timestub2.go(363 B)
📄 tls_arm.s(3.45 KB)
📄 tls_arm64.h(1.1 KB)
📄 tls_arm64.s(1.2 KB)
📄 tls_loong64.s(589 B)
📄 tls_mips64x.s(733 B)
📄 tls_mipsx.s(710 B)
📄 tls_ppc64x.s(1.52 KB)
📄 tls_riscv64.s(615 B)
📄 tls_s390x.s(1.55 KB)
📄 tls_stub.go(260 B)
📄 tls_windows_amd64.go(294 B)
📁 trace
📄 trace.go(62.76 KB)
📄 trace2.go(33.81 KB)
📄 trace2buf.go(6.58 KB)
📄 trace2cpu.go(8.87 KB)
📄 trace2event.go(8.39 KB)
📄 trace2map.go(4.36 KB)
📄 trace2region.go(1.68 KB)
📄 trace2runtime.go(24.2 KB)
📄 trace2stack.go(9.45 KB)
📄 trace2status.go(7.24 KB)
📄 trace2string.go(2.59 KB)
📄 trace2time.go(3.21 KB)
📄 trace_cgo_test.go(4.47 KB)
📄 traceback.go(54.61 KB)
📄 traceback_test.go(22.95 KB)
📄 tracebackx_test.go(509 B)
📄 type.go(12.1 KB)
📄 typekind.go(743 B)
📄 unsafe.go(2.97 KB)
📄 unsafepoint_test.go(3.27 KB)
📄 utf8.go(3.39 KB)
📄 vdso_elf32.go(2.76 KB)
📄 vdso_elf64.go(2.84 KB)
📄 vdso_freebsd.go(2.44 KB)
📄 vdso_freebsd_arm.go(454 B)
📄 vdso_freebsd_arm64.go(454 B)
📄 vdso_freebsd_riscv64.go(429 B)
📄 vdso_freebsd_x86.go(1.86 KB)
📄 vdso_in_none.go(443 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_loong64.go(793 B)
📄 vdso_linux_mips64x.go(850 B)
📄 vdso_linux_ppc64x.go(672 B)
📄 vdso_linux_riscv64.go(666 B)
📄 vdso_linux_s390x.go(659 B)
📄 vdso_test.go(3.71 KB)
📄 vlop_386.s(2.02 KB)
📄 vlop_arm.s(7.06 KB)
📄 vlop_arm_test.go(3.75 KB)
📄 vlrt.go(6.71 KB)
📄 wincallback.go(3.45 KB)
📄 write_err.go(291 B)
📄 write_err_android.go(4.65 KB)
📄 zcallback_windows.go(155 B)
📄 zcallback_windows.s(63.06 KB)
📄 zcallback_windows_arm.s(89.32 KB)
📄 zcallback_windows_arm64.s(89.32 KB)

Editing: sys_linux_arm.s

// Copyright 2009 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.

//
// System calls and other sys.stuff for arm, Linux
//

#include "go_asm.h"
#include "go_tls.h"
#include "textflag.h"

#define CLOCK_REALTIME	0
#define CLOCK_MONOTONIC	1

// for EABI, as we don't support OABI
#define SYS_BASE 0x0

#define SYS_exit (SYS_BASE + 1)
#define SYS_read (SYS_BASE + 3)
#define SYS_write (SYS_BASE + 4)
#define SYS_open (SYS_BASE + 5)
#define SYS_close (SYS_BASE + 6)
#define SYS_getpid (SYS_BASE + 20)
#define SYS_kill (SYS_BASE + 37)
#define SYS_clone (SYS_BASE + 120)
#define SYS_rt_sigreturn (SYS_BASE + 173)
#define SYS_rt_sigaction (SYS_BASE + 174)
#define SYS_rt_sigprocmask (SYS_BASE + 175)
#define SYS_sigaltstack (SYS_BASE + 186)
#define SYS_mmap2 (SYS_BASE + 192)
#define SYS_futex (SYS_BASE + 240)
#define SYS_exit_group (SYS_BASE + 248)
#define SYS_munmap (SYS_BASE + 91)
#define SYS_madvise (SYS_BASE + 220)
#define SYS_setitimer (SYS_BASE + 104)
#define SYS_mincore (SYS_BASE + 219)
#define SYS_gettid (SYS_BASE + 224)
#define SYS_tgkill (SYS_BASE + 268)
#define SYS_sched_yield (SYS_BASE + 158)
#define SYS_nanosleep (SYS_BASE + 162)
#define SYS_sched_getaffinity (SYS_BASE + 242)
#define SYS_clock_gettime (SYS_BASE + 263)
#define SYS_timer_create (SYS_BASE + 257)
#define SYS_timer_settime (SYS_BASE + 258)
#define SYS_timer_delete (SYS_BASE + 261)
#define SYS_pipe2 (SYS_BASE + 359)
#define SYS_access (SYS_BASE + 33)
#define SYS_connect (SYS_BASE + 283)
#define SYS_socket (SYS_BASE + 281)
#define SYS_brk (SYS_BASE + 45)

#define ARM_BASE (SYS_BASE + 0x0f0000)

TEXT runtime·open(SB),NOSPLIT,$0
	MOVW	name+0(FP), R0
	MOVW	mode+4(FP), R1
	MOVW	perm+8(FP), R2
	MOVW	$SYS_open, R7
	SWI	$0
	MOVW	$0xfffff001, R1
	CMP	R1, R0
	MOVW.HI	$-1, R0
	MOVW	R0, ret+12(FP)
	RET

TEXT runtime·closefd(SB),NOSPLIT,$0
	MOVW	fd+0(FP), R0
	MOVW	$SYS_close, R7
	SWI	$0
	MOVW	$0xfffff001, R1
	CMP	R1, R0
	MOVW.HI	$-1, R0
	MOVW	R0, ret+4(FP)
	RET

TEXT runtime·write1(SB),NOSPLIT,$0
	MOVW	fd+0(FP), R0
	MOVW	p+4(FP), R1
	MOVW	n+8(FP), R2
	MOVW	$SYS_write, R7
	SWI	$0
	MOVW	R0, ret+12(FP)
	RET

TEXT runtime·read(SB),NOSPLIT,$0
	MOVW	fd+0(FP), R0
	MOVW	p+4(FP), R1
	MOVW	n+8(FP), R2
	MOVW	$SYS_read, R7
	SWI	$0
	MOVW	R0, ret+12(FP)
	RET

// func pipe2(flags int32) (r, w int32, errno int32)
TEXT runtime·pipe2(SB),NOSPLIT,$0-16
	MOVW	$r+4(FP), R0
	MOVW	flags+0(FP), R1
	MOVW	$SYS_pipe2, R7
	SWI	$0
	MOVW	R0, errno+12(FP)
	RET

TEXT runtime·exit(SB),NOSPLIT|NOFRAME,$0
	MOVW	code+0(FP), R0
	MOVW	$SYS_exit_group, R7
	SWI	$0
	MOVW	$1234, R0
	MOVW	$1002, R1
	MOVW	R0, (R1)	// fail hard

TEXT exit1<>(SB),NOSPLIT|NOFRAME,$0
	MOVW	code+0(FP), R0
	MOVW	$SYS_exit, R7
	SWI	$0
	MOVW	$1234, R0
	MOVW	$1003, R1
	MOVW	R0, (R1)	// fail hard

// func exitThread(wait *atomic.Uint32)
TEXT runtime·exitThread(SB),NOSPLIT|NOFRAME,$0-4
	MOVW	wait+0(FP), R0
	// We're done using the stack.
	// Alas, there's no reliable way to make this write atomic
	// without potentially using the stack. So it goes.
	MOVW	$0, R1
	MOVW	R1, (R0)
	MOVW	$0, R0	// exit code
	MOVW	$SYS_exit, R7
	SWI	$0
	MOVW	$1234, R0
	MOVW	$1004, R1
	MOVW	R0, (R1)	// fail hard
	JMP	0(PC)

TEXT runtime·gettid(SB),NOSPLIT,$0-4
	MOVW	$SYS_gettid, R7
	SWI	$0
	MOVW	R0, ret+0(FP)
	RET

TEXT	runtime·raise(SB),NOSPLIT|NOFRAME,$0
	MOVW	$SYS_getpid, R7
	SWI	$0
	MOVW	R0, R4
	MOVW	$SYS_gettid, R7
	SWI	$0
	MOVW	R0, R1	// arg 2 tid
	MOVW	R4, R0	// arg 1 pid
	MOVW	sig+0(FP), R2	// arg 3
	MOVW	$SYS_tgkill, R7
	SWI	$0
	RET

TEXT	runtime·raiseproc(SB),NOSPLIT|NOFRAME,$0
	MOVW	$SYS_getpid, R7
	SWI	$0
	// arg 1 tid already in R0 from getpid
	MOVW	sig+0(FP), R1	// arg 2 - signal
	MOVW	$SYS_kill, R7
	SWI	$0
	RET

TEXT ·getpid(SB),NOSPLIT,$0-4
	MOVW	$SYS_getpid, R7
	SWI	$0
	MOVW	R0, ret+0(FP)
	RET

TEXT ·tgkill(SB),NOSPLIT,$0-12
	MOVW	tgid+0(FP), R0
	MOVW	tid+4(FP), R1
	MOVW	sig+8(FP), R2
	MOVW	$SYS_tgkill, R7
	SWI	$0
	RET

TEXT runtime·mmap(SB),NOSPLIT,$0
	MOVW	addr+0(FP), R0
	MOVW	n+4(FP), R1
	MOVW	prot+8(FP), R2
	MOVW	flags+12(FP), R3
	MOVW	fd+16(FP), R4
	MOVW	off+20(FP), R5
	MOVW	$SYS_mmap2, R7
	SWI	$0
	MOVW	$0xfffff001, R6
	CMP		R6, R0
	MOVW	$0, R1
	RSB.HI	$0, R0
	MOVW.HI	R0, R1		// if error, put in R1
	MOVW.HI	$0, R0
	MOVW	R0, p+24(FP)
	MOVW	R1, err+28(FP)
	RET

TEXT runtime·munmap(SB),NOSPLIT,$0
	MOVW	addr+0(FP), R0
	MOVW	n+4(FP), R1
	MOVW	$SYS_munmap, R7
	SWI	$0
	MOVW	$0xfffff001, R6
	CMP 	R6, R0
	MOVW.HI	$0, R8  // crash on syscall failure
	MOVW.HI	R8, (R8)
	RET

TEXT runtime·madvise(SB),NOSPLIT,$0
	MOVW	addr+0(FP), R0
	MOVW	n+4(FP), R1
	MOVW	flags+8(FP), R2
	MOVW	$SYS_madvise, R7
	SWI	$0
	MOVW	R0, ret+12(FP)
	RET

TEXT runtime·setitimer(SB),NOSPLIT,$0
	MOVW	mode+0(FP), R0
	MOVW	new+4(FP), R1
	MOVW	old+8(FP), R2
	MOVW	$SYS_setitimer, R7
	SWI	$0
	RET

TEXT runtime·timer_create(SB),NOSPLIT,$0-16
	MOVW	clockid+0(FP), R0
	MOVW	sevp+4(FP), R1
	MOVW	timerid+8(FP), R2
	MOVW	$SYS_timer_create, R7
	SWI	$0
	MOVW	R0, ret+12(FP)
	RET

TEXT runtime·timer_settime(SB),NOSPLIT,$0-20
	MOVW	timerid+0(FP), R0
	MOVW	flags+4(FP), R1
	MOVW	new+8(FP), R2
	MOVW	old+12(FP), R3
	MOVW	$SYS_timer_settime, R7
	SWI	$0
	MOVW	R0, ret+16(FP)
	RET

TEXT runtime·timer_delete(SB),NOSPLIT,$0-8
	MOVW	timerid+0(FP), R0
	MOVW	$SYS_timer_delete, R7
	SWI	$0
	MOVW	R0, ret+4(FP)
	RET

TEXT runtime·mincore(SB),NOSPLIT,$0
	MOVW	addr+0(FP), R0
	MOVW	n+4(FP), R1
	MOVW	dst+8(FP), R2
	MOVW	$SYS_mincore, R7
	SWI	$0
	MOVW	R0, ret+12(FP)
	RET

// Call a VDSO function.
//
// R0-R3: arguments to VDSO function (C calling convention)
// R4: uintptr function to call
//
// There is no return value.
TEXT runtime·vdsoCall(SB),NOSPLIT,$8-0
	// R0-R3 may be arguments to fn, do not touch.
	// R4 is function to call.
	// R5-R9 are available as locals. They are unchanged by the C call
	// (callee-save).

// We don't know how much stack space the VDSO code will need,
	// so switch to g0.

// Save old SP. Use R13 instead of SP to avoid linker rewriting the offsets.
	MOVW	R13, R5

MOVW	g_m(g), R6

// Set vdsoPC and vdsoSP for SIGPROF traceback.
	// Save the old values on stack and restore them on exit,
	// so this function is reentrant.
	MOVW	m_vdsoPC(R6), R7
	MOVW	m_vdsoSP(R6), R8
	MOVW	R7, 4(R13)
	MOVW	R8, 8(R13)

MOVW	$sp-4(FP), R7 // caller's SP
	MOVW	LR, m_vdsoPC(R6)
	MOVW	R7, m_vdsoSP(R6)

MOVW	m_curg(R6), R7

CMP	g, R7		// Only switch if on curg.
	B.NE	noswitch

MOVW	m_g0(R6), R7
	MOVW	(g_sched+gobuf_sp)(R7), R13	 // Set SP to g0 stack

noswitch:
	BIC	$0x7, R13	// Align for C code

// Store g on gsignal's stack, so if we receive a signal
	// during VDSO code we can find the g.

// When using cgo, we already saved g on TLS, also don't save g here.
	MOVB	runtime·iscgo(SB), R7
	CMP	$0, R7
	BNE	nosaveg
	// If we don't have a signal stack, we won't receive signal, so don't
	// bother saving g.
	MOVW	m_gsignal(R6), R7          // g.m.gsignal
	CMP	$0, R7
	BEQ	nosaveg
	// Don't save g if we are already on the signal stack, as we won't get
	// a nested signal.
	CMP	g, R7
	BEQ	nosaveg
	// If we don't have a signal stack, we won't receive signal, so don't
	// bother saving g.
	MOVW	(g_stack+stack_lo)(R7), R7 // g.m.gsignal.stack.lo
	CMP	$0, R7
	BEQ	nosaveg
	MOVW	g, (R7)

BL	(R4)

MOVW	$0, R8
	MOVW	R8, (R7) // clear g slot

JMP	finish

nosaveg:
	BL	(R4)

finish:
	MOVW	R5, R13		// Restore real SP
	// Restore vdsoPC, vdsoSP
	// We don't worry about being signaled between the two stores.
	// If we are not in a signal handler, we'll restore vdsoSP to 0,
	// and no one will care about vdsoPC. If we are in a signal handler,
	// we cannot receive another signal.
	MOVW	8(R13), R7
	MOVW	R7, m_vdsoSP(R6)
	MOVW	4(R13), R7
	MOVW	R7, m_vdsoPC(R6)
	RET

TEXT runtime·walltime(SB),NOSPLIT,$12-12
	MOVW	$CLOCK_REALTIME, R0
	MOVW	$spec-12(SP), R1	// timespec

MOVW	runtime·vdsoClockgettimeSym(SB), R4
	CMP	$0, R4
	B.EQ	fallback

BL	runtime·vdsoCall(SB)

JMP	finish

fallback:
	MOVW	$SYS_clock_gettime, R7
	SWI	$0

finish:
	MOVW	sec-12(SP), R0  // sec
	MOVW	nsec-8(SP), R2  // nsec

MOVW	R0, sec_lo+0(FP)
	MOVW	$0, R1
	MOVW	R1, sec_hi+4(FP)
	MOVW	R2, nsec+8(FP)
	RET

// func nanotime1() int64
TEXT runtime·nanotime1(SB),NOSPLIT,$12-8
	MOVW	$CLOCK_MONOTONIC, R0
	MOVW	$spec-12(SP), R1	// timespec

MOVW	runtime·vdsoClockgettimeSym(SB), R4
	CMP	$0, R4
	B.EQ	fallback

BL	runtime·vdsoCall(SB)

JMP	finish

fallback:
	MOVW	$SYS_clock_gettime, R7
	SWI	$0

finish:
	MOVW	sec-12(SP), R0  // sec
	MOVW	nsec-8(SP), R2  // nsec

MOVW	$1000000000, R3
	MULLU	R0, R3, (R1, R0)
	ADD.S	R2, R0
	ADC	$0, R1	// Add carry bit to upper half.

MOVW	R0, ret_lo+0(FP)
	MOVW	R1, ret_hi+4(FP)

RET

// int32 futex(int32 *uaddr, int32 op, int32 val,
//	struct timespec *timeout, int32 *uaddr2, int32 val2);
TEXT runtime·futex(SB),NOSPLIT,$0
	MOVW    addr+0(FP), R0
	MOVW    op+4(FP), R1
	MOVW    val+8(FP), R2
	MOVW    ts+12(FP), R3
	MOVW    addr2+16(FP), R4
	MOVW    val3+20(FP), R5
	MOVW	$SYS_futex, R7
	SWI	$0
	MOVW	R0, ret+24(FP)
	RET

// int32 clone(int32 flags, void *stack, M *mp, G *gp, void (*fn)(void));
TEXT runtime·clone(SB),NOSPLIT,$0
	MOVW	flags+0(FP), R0
	MOVW	stk+4(FP), R1
	MOVW	$0, R2	// parent tid ptr
	MOVW	$0, R3	// tls_val
	MOVW	$0, R4	// child tid ptr
	MOVW	$0, R5

// Copy mp, gp, fn off parent stack for use by child.
	MOVW	$-16(R1), R1
	MOVW	mp+8(FP), R6
	MOVW	R6, 0(R1)
	MOVW	gp+12(FP), R6
	MOVW	R6, 4(R1)
	MOVW	fn+16(FP), R6
	MOVW	R6, 8(R1)
	MOVW	$1234, R6
	MOVW	R6, 12(R1)

MOVW	$SYS_clone, R7
	SWI	$0

// In parent, return.
	CMP	$0, R0
	BEQ	3(PC)
	MOVW	R0, ret+20(FP)
	RET

// Paranoia: check that SP is as we expect. Use R13 to avoid linker 'fixup'
	NOP	R13	// tell vet SP/R13 changed - stop checking offsets
	MOVW	12(R13), R0
	MOVW	$1234, R1
	CMP	R0, R1
	BEQ	2(PC)
	BL	runtime·abort(SB)

MOVW	0(R13), R8    // m
	MOVW	4(R13), R0    // g

CMP	$0, R8
	BEQ	nog
	CMP	$0, R0
	BEQ	nog

MOVW	R0, g
	MOVW	R8, g_m(g)

// paranoia; check they are not nil
	MOVW	0(R8), R0
	MOVW	0(g), R0

BL	runtime·emptyfunc(SB)	// fault if stack check is wrong

// Initialize m->procid to Linux tid
	MOVW	$SYS_gettid, R7
	SWI	$0
	MOVW	g_m(g), R8
	MOVW	R0, m_procid(R8)

nog:
	// Call fn
	MOVW	8(R13), R0
	MOVW	$16(R13), R13
	BL	(R0)

// It shouldn't return. If it does, exit that thread.
	SUB	$16, R13 // restore the stack pointer to avoid memory corruption
	MOVW	$0, R0
	MOVW	R0, 4(R13)
	BL	exit1<>(SB)

MOVW	$1234, R0
	MOVW	$1005, R1
	MOVW	R0, (R1)

TEXT runtime·sigaltstack(SB),NOSPLIT,$0
	MOVW	new+0(FP), R0
	MOVW	old+4(FP), R1
	MOVW	$SYS_sigaltstack, R7
	SWI	$0
	MOVW	$0xfffff001, R6
	CMP 	R6, R0
	MOVW.HI	$0, R8  // crash on syscall failure
	MOVW.HI	R8, (R8)
	RET

TEXT runtime·sigfwd(SB),NOSPLIT,$0-16
	MOVW	sig+4(FP), R0
	MOVW	info+8(FP), R1
	MOVW	ctx+12(FP), R2
	MOVW	fn+0(FP), R11
	MOVW	R13, R4
	SUB	$24, R13
	BIC	$0x7, R13 // alignment for ELF ABI
	BL	(R11)
	MOVW	R4, R13
	RET

TEXT runtime·sigtramp(SB),NOSPLIT|TOPFRAME,$0
	// Reserve space for callee-save registers and arguments.
	MOVM.DB.W [R4-R11], (R13)
	SUB	$16, R13

// this might be called in external code context,
	// where g is not set.
	// first save R0, because runtime·load_g will clobber it
	MOVW	R0, 4(R13)
	MOVB	runtime·iscgo(SB), R0
	CMP 	$0, R0
	BL.NE	runtime·load_g(SB)

MOVW	R1, 8(R13)
	MOVW	R2, 12(R13)
	MOVW  	$runtime·sigtrampgo(SB), R11
	BL	(R11)

// Restore callee-save registers.
	ADD	$16, R13
	MOVM.IA.W (R13), [R4-R11]

RET

TEXT runtime·cgoSigtramp(SB),NOSPLIT,$0
	MOVW  	$runtime·sigtramp(SB), R11
	B	(R11)

TEXT runtime·rtsigprocmask(SB),NOSPLIT,$0
	MOVW	how+0(FP), R0
	MOVW	new+4(FP), R1
	MOVW	old+8(FP), R2
	MOVW	size+12(FP), R3
	MOVW	$SYS_rt_sigprocmask, R7
	SWI	$0
	RET

TEXT runtime·rt_sigaction(SB),NOSPLIT,$0
	MOVW	sig+0(FP), R0
	MOVW	new+4(FP), R1
	MOVW	old+8(FP), R2
	MOVW	size+12(FP), R3
	MOVW	$SYS_rt_sigaction, R7
	SWI	$0
	MOVW	R0, ret+16(FP)
	RET

TEXT runtime·usleep(SB),NOSPLIT,$12
	MOVW	usec+0(FP), R0
	CALL	runtime·usplitR0(SB)
	MOVW	R0, 4(R13)
	MOVW	$1000, R0	// usec to nsec
	MUL	R0, R1
	MOVW	R1, 8(R13)
	MOVW	$4(R13), R0
	MOVW	$0, R1
	MOVW	$SYS_nanosleep, R7
	SWI	$0
	RET

// As for cas, memory barriers are complicated on ARM, but the kernel
// provides a user helper. ARMv5 does not support SMP and has no
// memory barrier instruction at all. ARMv6 added SMP support and has
// a memory barrier, but it requires writing to a coprocessor
// register. ARMv7 introduced the DMB instruction, but it's expensive
// even on single-core devices. The kernel helper takes care of all of
// this for us.

TEXT kernelPublicationBarrier<>(SB),NOSPLIT,$0
	// void __kuser_memory_barrier(void);
	MOVW	$0xffff0fa0, R11
	CALL	(R11)
	RET

TEXT ·publicationBarrier(SB),NOSPLIT,$0
	MOVB	·goarm(SB), R11
	CMP	$7, R11
	BLT	2(PC)
	JMP	·armPublicationBarrier(SB)
	JMP	kernelPublicationBarrier<>(SB) // extra layer so this function is leaf and no SP adjustment on GOARM=7

TEXT runtime·osyield(SB),NOSPLIT,$0
	MOVW	$SYS_sched_yield, R7
	SWI	$0
	RET

TEXT runtime·sched_getaffinity(SB),NOSPLIT,$0
	MOVW	pid+0(FP), R0
	MOVW	len+4(FP), R1
	MOVW	buf+8(FP), R2
	MOVW	$SYS_sched_getaffinity, R7
	SWI	$0
	MOVW	R0, ret+12(FP)
	RET

// b __kuser_get_tls @ 0xffff0fe0
TEXT runtime·read_tls_fallback(SB),NOSPLIT|NOFRAME,$0
	MOVW	$0xffff0fe0, R0
	B	(R0)

TEXT runtime·access(SB),NOSPLIT,$0
	MOVW	name+0(FP), R0
	MOVW	mode+4(FP), R1
	MOVW	$SYS_access, R7
	SWI	$0
	MOVW	R0, ret+8(FP)
	RET

TEXT runtime·connect(SB),NOSPLIT,$0
	MOVW	fd+0(FP), R0
	MOVW	addr+4(FP), R1
	MOVW	len+8(FP), R2
	MOVW	$SYS_connect, R7
	SWI	$0
	MOVW	R0, ret+12(FP)
	RET

TEXT runtime·socket(SB),NOSPLIT,$0
	MOVW	domain+0(FP), R0
	MOVW	typ+4(FP), R1
	MOVW	prot+8(FP), R2
	MOVW	$SYS_socket, R7
	SWI	$0
	MOVW	R0, ret+12(FP)
	RET

// func sbrk0() uintptr
TEXT runtime·sbrk0(SB),NOSPLIT,$0-4
	// Implemented as brk(NULL).
	MOVW	$0, R0
	MOVW	$SYS_brk, R7
	SWI	$0
	MOVW	R0, ret+0(FP)
	RET

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