1 files changed, 0 insertions, 311 deletions
diff --git a/src/pkg/runtime/thread_linux.c b/src/pkg/runtime/thread_linux.c
deleted file mode 100644
index 7fdc757dfc..0000000000
--- a/src/pkg/runtime/thread_linux.c
+++ /dev/null
@@ -1,311 +0,0 @@
-// 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.
-
-#include "runtime.h"
-#include "defs_GOOS_GOARCH.h"
-#include "os_GOOS.h"
-#include "stack.h"
-
-extern SigTab runtime·sigtab[];
-
-static Sigset sigset_none;
-static Sigset sigset_all = { ~(uint32)0, ~(uint32)0 };
-
-// Linux futex.
-//
-//	futexsleep(uint32 *addr, uint32 val)
-//	futexwakeup(uint32 *addr)
-//
-// Futexsleep atomically checks if *addr == val and if so, sleeps on addr.
-// Futexwakeup wakes up threads sleeping on addr.
-// Futexsleep is allowed to wake up spuriously.
-
-enum
-{
-	FUTEX_WAIT = 0,
-	FUTEX_WAKE = 1,
-};
-
-// Atomically,
-//	if(*addr == val) sleep
-// Might be woken up spuriously; that's allowed.
-// Don't sleep longer than ns; ns < 0 means forever.
-void
-runtime·futexsleep(uint32 *addr, uint32 val, int64 ns)
-{
-	Timespec ts, *tsp;
-
-	if(ns < 0)
-		tsp = nil;
-	else {
-		ts.tv_sec = ns/1000000000LL;
-		ts.tv_nsec = ns%1000000000LL;
-		// Avoid overflow
-		if(ts.tv_sec > 1<<30)
-			ts.tv_sec = 1<<30;
-		tsp = &ts;
-	}
-
-	// Some Linux kernels have a bug where futex of
-	// FUTEX_WAIT returns an internal error code
-	// as an errno.  Libpthread ignores the return value
-	// here, and so can we: as it says a few lines up,
-	// spurious wakeups are allowed.
-	runtime·futex(addr, FUTEX_WAIT, val, tsp, nil, 0);
-}
-
-// If any procs are sleeping on addr, wake up at most cnt.
-void
-runtime·futexwakeup(uint32 *addr, uint32 cnt)
-{
-	int64 ret;
-
-	ret = runtime·futex(addr, FUTEX_WAKE, cnt, nil, nil, 0);
-
-	if(ret >= 0)
-		return;
-
-	// I don't know that futex wakeup can return
-	// EAGAIN or EINTR, but if it does, it would be
-	// safe to loop and call futex again.
-	runtime·printf("futexwakeup addr=%p returned %D\n", addr, ret);
-	*(int32*)0x1006 = 0x1006;
-}
-
-extern runtime·sched_getaffinity(uintptr pid, uintptr len, uintptr *buf);
-static int32
-getproccount(void)
-{
-	uintptr buf[16], t;
-	int32 r, cnt, i;
-
-	cnt = 0;
-	r = runtime·sched_getaffinity(0, sizeof(buf), buf);
-	if(r > 0)
-	for(i = 0; i < r/sizeof(buf[0]); i++) {
-		t = buf[i];
-		t = t - ((t >> 1) & 0x5555555555555555ULL);
-		t = (t & 0x3333333333333333ULL) + ((t >> 2) & 0x3333333333333333ULL);
-		cnt += (int32)((((t + (t >> 4)) & 0xF0F0F0F0F0F0F0FULL) * 0x101010101010101ULL) >> 56);
-	}
-
-	return cnt ? cnt : 1;
-}
-
-// Clone, the Linux rfork.
-enum
-{
-	CLONE_VM = 0x100,
-	CLONE_FS = 0x200,
-	CLONE_FILES = 0x400,
-	CLONE_SIGHAND = 0x800,
-	CLONE_PTRACE = 0x2000,
-	CLONE_VFORK = 0x4000,
-	CLONE_PARENT = 0x8000,
-	CLONE_THREAD = 0x10000,
-	CLONE_NEWNS = 0x20000,
-	CLONE_SYSVSEM = 0x40000,
-	CLONE_SETTLS = 0x80000,
-	CLONE_PARENT_SETTID = 0x100000,
-	CLONE_CHILD_CLEARTID = 0x200000,
-	CLONE_UNTRACED = 0x800000,
-	CLONE_CHILD_SETTID = 0x1000000,
-	CLONE_STOPPED = 0x2000000,
-	CLONE_NEWUTS = 0x4000000,
-	CLONE_NEWIPC = 0x8000000,
-};
-
-void
-runtime·newosproc(M *mp, void *stk)
-{
-	int32 ret;
-	int32 flags;
-	Sigset oset;
-
-	/*
-	 * note: strace gets confused if we use CLONE_PTRACE here.
-	 */
-	flags = CLONE_VM	/* share memory */
-		| CLONE_FS	/* share cwd, etc */
-		| CLONE_FILES	/* share fd table */
-		| CLONE_SIGHAND	/* share sig handler table */
-		| CLONE_THREAD	/* revisit - okay for now */
-		;
-
-	mp->tls[0] = mp->id;	// so 386 asm can find it
-	if(0){
-		runtime·printf("newosproc stk=%p m=%p g=%p clone=%p id=%d/%d ostk=%p\n",
-			stk, mp, mp->g0, runtime·clone, mp->id, (int32)mp->tls[0], &mp);
-	}
-
-	// Disable signals during clone, so that the new thread starts
-	// with signals disabled.  It will enable them in minit.
-	runtime·rtsigprocmask(SIG_SETMASK, &sigset_all, &oset, sizeof oset);
-	ret = runtime·clone(flags, stk, mp, mp->g0, runtime·mstart);
-	runtime·rtsigprocmask(SIG_SETMASK, &oset, nil, sizeof oset);
-
-	if(ret < 0) {
-		runtime·printf("runtime: failed to create new OS thread (have %d already; errno=%d)\n", runtime·mcount(), -ret);
-		runtime·throw("runtime.newosproc");
-	}
-}
-
-void
-runtime·osinit(void)
-{
-	runtime·ncpu = getproccount();
-}
-
-// Random bytes initialized at startup.  These come
-// from the ELF AT_RANDOM auxiliary vector (vdso_linux_amd64.c).
-byte*	runtime·startup_random_data;
-uint32	runtime·startup_random_data_len;
-
-void
-runtime·get_random_data(byte **rnd, int32 *rnd_len)
-{
-	if(runtime·startup_random_data != nil) {
-		*rnd = runtime·startup_random_data;
-		*rnd_len = runtime·startup_random_data_len;
-	} else {
-		static byte urandom_data[HashRandomBytes];
-		int32 fd;
-		fd = runtime·open("/dev/urandom", 0 /* O_RDONLY */, 0);
-		if(runtime·read(fd, urandom_data, HashRandomBytes) == HashRandomBytes) {
-			*rnd = urandom_data;
-			*rnd_len = HashRandomBytes;
-		} else {
-			*rnd = nil;
-			*rnd_len = 0;
-		}
-		runtime·close(fd);
-	}
-}
-
-void
-runtime·goenvs(void)
-{
-	runtime·goenvs_unix();
-}
-
-// Called to initialize a new m (including the bootstrap m).
-// Called on the parent thread (main thread in case of bootstrap), can allocate memory.
-void
-runtime·mpreinit(M *mp)
-{
-	mp->gsignal = runtime·malg(32*1024);	// OS X wants >=8K, Linux >=2K
-}
-
-// Called to initialize a new m (including the bootstrap m).
-// Called on the new thread, can not allocate memory.
-void
-runtime·minit(void)
-{
-	// Initialize signal handling.
-	runtime·signalstack((byte*)m->gsignal->stackguard - StackGuard, 32*1024);
-	runtime·rtsigprocmask(SIG_SETMASK, &sigset_none, nil, sizeof(Sigset));
-}
-
-// Called from dropm to undo the effect of an minit.
-void
-runtime·unminit(void)
-{
-	runtime·signalstack(nil, 0);
-}
-
-void
-runtime·sigpanic(void)
-{
-	switch(g->sig) {
-	case SIGBUS:
-		if(g->sigcode0 == BUS_ADRERR && g->sigcode1 < 0x1000) {
-			if(g->sigpc == 0)
-				runtime·panicstring("call of nil func value");
-			}
-			runtime·panicstring("invalid memory address or nil pointer dereference");
-		runtime·printf("unexpected fault address %p\n", g->sigcode1);
-		runtime·throw("fault");
-	case SIGSEGV:
-		if((g->sigcode0 == 0 || g->sigcode0 == SEGV_MAPERR || g->sigcode0 == SEGV_ACCERR) && g->sigcode1 < 0x1000) {
-			if(g->sigpc == 0)
-				runtime·panicstring("call of nil func value");
-			runtime·panicstring("invalid memory address or nil pointer dereference");
-		}
-		runtime·printf("unexpected fault address %p\n", g->sigcode1);
-		runtime·throw("fault");
-	case SIGFPE:
-		switch(g->sigcode0) {
-		case FPE_INTDIV:
-			runtime·panicstring("integer divide by zero");
-		case FPE_INTOVF:
-			runtime·panicstring("integer overflow");
-		}
-		runtime·panicstring("floating point error");
-	}
-	runtime·panicstring(runtime·sigtab[g->sig].name);
-}
-
-uintptr
-runtime·memlimit(void)
-{
-	Rlimit rl;
-	extern byte text[], end[];
-	uintptr used;
-
-	if(runtime·getrlimit(RLIMIT_AS, &rl) != 0)
-		return 0;
-	if(rl.rlim_cur >= 0x7fffffff)
-		return 0;
-
-	// Estimate our VM footprint excluding the heap.
-	// Not an exact science: use size of binary plus
-	// some room for thread stacks.
-	used = end - text + (64<<20);
-	if(used >= rl.rlim_cur)
-		return 0;
-
-	// If there's not at least 16 MB left, we're probably
-	// not going to be able to do much.  Treat as no limit.
-	rl.rlim_cur -= used;
-	if(rl.rlim_cur < (16<<20))
-		return 0;
-
-	return rl.rlim_cur - used;
-}
-
-void
-runtime·setprof(bool on)
-{
-	USED(on);
-}
-
-static int8 badcallback[] = "runtime: cgo callback on thread not created by Go.\n";
-
-// This runs on a foreign stack, without an m or a g.  No stack split.
-#pragma textflag 7
-void
-runtime·badcallback(void)
-{
-	runtime·write(2, badcallback, sizeof badcallback - 1);
-}
-
-static int8 badsignal[] = "runtime: signal received on thread not created by Go: ";
-
-// This runs on a foreign stack, without an m or a g.  No stack split.
-#pragma textflag 7
-void
-runtime·badsignal(int32 sig)
-{
-	if (sig == SIGPROF) {
-		return;  // Ignore SIGPROFs intended for a non-Go thread.
-	}
-	runtime·write(2, badsignal, sizeof badsignal - 1);
-	if (0 <= sig && sig < NSIG) {
-		// Call runtime·findnull dynamically to circumvent static stack size check.
-		static int32 (*findnull)(byte*) = runtime·findnull;
-		runtime·write(2, runtime·sigtab[sig].name, findnull((byte*)runtime·sigtab[sig].name));
-	}
-	runtime·write(2, "\n", 1);
-	runtime·exit(1);
-}