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author | Ian Lance Taylor <ian@gcc.gnu.org> | 2016-10-30 16:45:34 +0000 |
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committer | Ian Lance Taylor <ian@gcc.gnu.org> | 2016-10-30 16:45:34 +0000 |
commit | 48e21b40b5549ddcf2a3e20cde612ed5c52ed3c2 (patch) | |
tree | 19849be05aa15fa5a472ab92d3bf98a5cb37da12 /libgo/runtime/runtime.c | |
parent | aee707743d4724c2754ba3f73bc9326b39964701 (diff) | |
download | gcc-48e21b40b5549ddcf2a3e20cde612ed5c52ed3c2.zip gcc-48e21b40b5549ddcf2a3e20cde612ed5c52ed3c2.tar.gz gcc-48e21b40b5549ddcf2a3e20cde612ed5c52ed3c2.tar.bz2 |
libgo: eliminate a lot of duplication in Makefile.am
I read through the GNU make manual. I knew there had to be a way to do it.
Remove the special netgo library. The essential feature--using the Go
DNS resolver--is now available by setting GODEBUG=netdns=go.
Reviewed-on: https://go-review.googlesource.com/32333
From-SVN: r241687
Diffstat (limited to 'libgo/runtime/runtime.c')
-rw-r--r-- | libgo/runtime/runtime.c | 206 |
1 files changed, 0 insertions, 206 deletions
diff --git a/libgo/runtime/runtime.c b/libgo/runtime/runtime.c deleted file mode 100644 index 16be089..0000000 --- a/libgo/runtime/runtime.c +++ /dev/null @@ -1,206 +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 <errno.h> -#include <signal.h> -#include <unistd.h> - -#include "config.h" - -#include "runtime.h" -#include "arch.h" -#include "array.h" - -enum { - maxround = sizeof(uintptr), -}; - -extern volatile intgo runtime_MemProfileRate - __asm__ (GOSYM_PREFIX "runtime.MemProfileRate"); - -struct gotraceback_ret { - int32 level; - bool crash; -}; - -extern struct gotraceback_ret gotraceback(void) - __asm__ (GOSYM_PREFIX "runtime.gotraceback"); - -// runtime_gotraceback is the C interface to runtime.gotraceback. -int32 -runtime_gotraceback(bool *crash) -{ - struct gotraceback_ret r; - - r = gotraceback(); - if(crash != nil) - *crash = r.crash; - return r.level; -} - -int32 -runtime_atoi(const byte *p, intgo len) -{ - int32 n; - - n = 0; - while(len > 0 && '0' <= *p && *p <= '9') { - n = n*10 + *p++ - '0'; - len--; - } - return n; -} - -uint32 -runtime_fastrand1(void) -{ - M *m; - uint32 x; - - m = runtime_m(); - x = m->fastrand; - x += x; - if(x & 0x80000000L) - x ^= 0x88888eefUL; - m->fastrand = x; - return x; -} - -int64 -runtime_cputicks(void) -{ -#if defined(__386__) || defined(__x86_64__) - uint32 low, high; - asm("rdtsc" : "=a" (low), "=d" (high)); - return (int64)(((uint64)high << 32) | (uint64)low); -#elif defined (__s390__) || defined (__s390x__) - uint64 clock = 0; - /* stckf may not write the return variable in case of a clock error, so make - it read-write to prevent that the initialisation is optimised out. - Note: Targets below z9-109 will crash when executing store clock fast, i.e. - we don't support Go for machines older than that. */ - asm volatile(".insn s,0xb27c0000,%0" /* stckf */ : "+Q" (clock) : : "cc" ); - return (int64)clock; -#else - // Currently cputicks() is used in blocking profiler and to seed runtime·fastrand1(). - // runtime·nanotime() is a poor approximation of CPU ticks that is enough for the profiler. - // TODO: need more entropy to better seed fastrand1. - return runtime_nanotime(); -#endif -} - -// 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) -{ - int32 stacksize = 32 * 1024; // OS X wants >=8K, Linux >=2K - -#ifdef SIGSTKSZ - if(stacksize < SIGSTKSZ) - stacksize = SIGSTKSZ; -#endif - - mp->gsignal = runtime_malg(stacksize, (byte**)&mp->gsignalstack, &mp->gsignalstacksize); - mp->gsignal->m = mp; -} - -// Called to initialize a new m (including the bootstrap m). -// Called on the new thread, can not allocate memory. -void -runtime_minit(void) -{ - M* m; - sigset_t sigs; - - // Initialize signal handling. - m = runtime_m(); - runtime_signalstack(m->gsignalstack, m->gsignalstacksize); - if (sigemptyset(&sigs) != 0) - runtime_throw("sigemptyset"); - pthread_sigmask(SIG_SETMASK, &sigs, nil); -} - -// Called from dropm to undo the effect of an minit. -void -runtime_unminit(void) -{ - runtime_signalstack(nil, 0); -} - - -void -runtime_signalstack(byte *p, int32 n) -{ - stack_t st; - - st.ss_sp = p; - st.ss_size = n; - st.ss_flags = 0; - if(p == nil) - st.ss_flags = SS_DISABLE; - if(sigaltstack(&st, nil) < 0) - *(int *)0xf1 = 0xf1; -} - -struct debugVars runtime_debug; - -void -runtime_setdebug(struct debugVars* d) { - runtime_debug = *d; -} - -void memclrBytes(Slice) - __asm__ (GOSYM_PREFIX "runtime.memclrBytes"); - -void -memclrBytes(Slice s) -{ - runtime_memclr(s.__values, s.__count); -} - -int32 go_open(char *, int32, int32) - __asm__ (GOSYM_PREFIX "runtime.open"); - -int32 -go_open(char *name, int32 mode, int32 perm) -{ - return runtime_open(name, mode, perm); -} - -int32 go_read(int32, void *, int32) - __asm__ (GOSYM_PREFIX "runtime.read"); - -int32 -go_read(int32 fd, void *p, int32 n) -{ - return runtime_read(fd, p, n); -} - -int32 go_write(uintptr, void *, int32) - __asm__ (GOSYM_PREFIX "runtime.write"); - -int32 -go_write(uintptr fd, void *p, int32 n) -{ - return runtime_write(fd, p, n); -} - -int32 go_closefd(int32) - __asm__ (GOSYM_PREFIX "runtime.closefd"); - -int32 -go_closefd(int32 fd) -{ - return runtime_close(fd); -} - -intgo go_errno(void) - __asm__ (GOSYM_PREFIX "runtime.errno"); - -intgo -go_errno() -{ - return (intgo)errno; -} |