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runtime/cgo: consolidate linux cgo code

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Much of the gcc_linux_*.c code is identical and duplicated across
architectures. Consolidate code for 386, arm, loong64, mips* and
riscv64, where the only difference is the build tags (386 also
has some non-functional ordering differences).

Change-Id: I14ee9a4cc6b72e165239d196b68b6343efaddf0a
Reviewed-on: https://go-review.googlesource.com/c/go/+/518620
Run-TryBot: Joel Sing <joel@sing.id.au>
Reviewed-by: Ian Lance Taylor <iant@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
This commit is contained in:
Joel Sing 2023-08-11 18:54:52 +10:00
parent 60506f4d7f
commit 23e4a4b6e5
6 changed files with 4 additions and 322 deletions
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6
src/runtime/cgo/gcc_linux_386.c → src/runtime/cgo/gcc_linux.c
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@ -2,6 +2,8 @@
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build linux && (386 || arm || loong64 || mips || mipsle || mips64 || mips64le || riscv64)
#include <pthread.h>
#include <string.h>
#include <signal.h>
@ -9,15 +11,15 @@
#include "libcgo_unix.h"
static void *threadentry(void*);
static void (*setg_gcc)(void*);
// This will be set in gcc_android.c for android-specific customization.
void (*x_cgo_inittls)(void **tlsg, void **tlsbase) __attribute__((common));
static void (*setg_gcc)(void*);
void
x_cgo_init(G *g, void (*setg)(void*), void **tlsg, void **tlsbase)
{
setg_gcc = setg;
_cgo_set_stacklo(g, NULL);
if (x_cgo_inittls) {

63
src/runtime/cgo/gcc_linux_arm.c
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@ -1,63 +0,0 @@
// Copyright 2010 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 <pthread.h>
#include <string.h>
#include <signal.h>
#include "libcgo.h"
#include "libcgo_unix.h"
static void *threadentry(void*);
void (*x_cgo_inittls)(void **tlsg, void **tlsbase) __attribute__((common));
static void (*setg_gcc)(void*);
void
_cgo_sys_thread_start(ThreadStart *ts)
{
pthread_attr_t attr;
sigset_t ign, oset;
pthread_t p;
size_t size;
int err;
sigfillset(&ign);
pthread_sigmask(SIG_SETMASK, &ign, &oset);
pthread_attr_init(&attr);
pthread_attr_getstacksize(&attr, &size);
// Leave stacklo=0 and set stackhi=size; mstart will do the rest.
ts->g->stackhi = size;
err = _cgo_try_pthread_create(&p, &attr, threadentry, ts);
pthread_sigmask(SIG_SETMASK, &oset, nil);
if (err != 0) {
fatalf("pthread_create failed: %s", strerror(err));
}
}
extern void crosscall1(void (*fn)(void), void (*setg_gcc)(void*), void *g);
static void*
threadentry(void *v)
{
ThreadStart ts;
ts = *(ThreadStart*)v;
free(v);
crosscall1(ts.fn, setg_gcc, (void*)ts.g);
return nil;
}
void
x_cgo_init(G *g, void (*setg)(void*), void **tlsg, void **tlsbase)
{
setg_gcc = setg;
_cgo_set_stacklo(g, NULL);
if (x_cgo_inittls) {
x_cgo_inittls(tlsg, tlsbase);
}
}

63
src/runtime/cgo/gcc_linux_loong64.c
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@ -1,63 +0,0 @@
// Copyright 2022 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 <pthread.h>
#include <string.h>
#include <signal.h>
#include "libcgo.h"
#include "libcgo_unix.h"
static void *threadentry(void*);
void (*x_cgo_inittls)(void **tlsg, void **tlsbase);
static void (*setg_gcc)(void*);
void
_cgo_sys_thread_start(ThreadStart *ts)
{
pthread_attr_t attr;
sigset_t ign, oset;
pthread_t p;
size_t size;
int err;
sigfillset(&ign);
pthread_sigmask(SIG_SETMASK, &ign, &oset);
pthread_attr_init(&attr);
pthread_attr_getstacksize(&attr, &size);
// Leave stacklo=0 and set stackhi=size; mstart will do the rest.
ts->g->stackhi = size;
err = _cgo_try_pthread_create(&p, &attr, threadentry, ts);
pthread_sigmask(SIG_SETMASK, &oset, nil);
if (err != 0) {
fatalf("pthread_create failed: %s", strerror(err));
}
}
extern void crosscall1(void (*fn)(void), void (*setg_gcc)(void*), void *g);
static void*
threadentry(void *v)
{
ThreadStart ts;
ts = *(ThreadStart*)v;
free(v);
crosscall1(ts.fn, setg_gcc, (void*)ts.g);
return nil;
}
void
x_cgo_init(G *g, void (*setg)(void*), void **tlsg, void **tlsbase)
{
setg_gcc = setg;
_cgo_set_stacklo(g, NULL);
if (x_cgo_inittls) {
x_cgo_inittls(tlsg, tlsbase);
}
}

65
src/runtime/cgo/gcc_linux_mips64x.c
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@ -1,65 +0,0 @@
// Copyright 2016 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.
//go:build linux && (mips64 || mips64le)
#include <pthread.h>
#include <string.h>
#include <signal.h>
#include "libcgo.h"
#include "libcgo_unix.h"
static void *threadentry(void*);
void (*x_cgo_inittls)(void **tlsg, void **tlsbase);
static void (*setg_gcc)(void*);
void
_cgo_sys_thread_start(ThreadStart *ts)
{
pthread_attr_t attr;
sigset_t ign, oset;
pthread_t p;
size_t size;
int err;
sigfillset(&ign);
pthread_sigmask(SIG_SETMASK, &ign, &oset);
pthread_attr_init(&attr);
pthread_attr_getstacksize(&attr, &size);
// Leave stacklo=0 and set stackhi=size; mstart will do the rest.
ts->g->stackhi = size;
err = _cgo_try_pthread_create(&p, &attr, threadentry, ts);
pthread_sigmask(SIG_SETMASK, &oset, nil);
if (err != 0) {
fatalf("pthread_create failed: %s", strerror(err));
}
}
extern void crosscall1(void (*fn)(void), void (*setg_gcc)(void*), void *g);
static void*
threadentry(void *v)
{
ThreadStart ts;
ts = *(ThreadStart*)v;
free(v);
crosscall1(ts.fn, setg_gcc, (void*)ts.g);
return nil;
}
void
x_cgo_init(G *g, void (*setg)(void*), void **tlsg, void **tlsbase)
{
setg_gcc = setg;
_cgo_set_stacklo(g, NULL);
if (x_cgo_inittls) {
x_cgo_inittls(tlsg, tlsbase);
}
}

66
src/runtime/cgo/gcc_linux_mipsx.c
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@ -1,66 +0,0 @@
// Copyright 2016 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.
//go:build linux && (mips || mipsle)
#include <pthread.h>
#include <string.h>
#include <signal.h>
#include "libcgo.h"
#include "libcgo_unix.h"
static void *threadentry(void*);
void (*x_cgo_inittls)(void **tlsg, void **tlsbase);
static void (*setg_gcc)(void*);
void
_cgo_sys_thread_start(ThreadStart *ts)
{
pthread_attr_t attr;
sigset_t ign, oset;
pthread_t p;
size_t size;
int err;
sigfillset(&ign);
pthread_sigmask(SIG_SETMASK, &ign, &oset);
pthread_attr_init(&attr);
pthread_attr_getstacksize(&attr, &size);
// Leave stacklo=0 and set stackhi=size; mstart will do the rest.
ts->g->stackhi = size;
err = _cgo_try_pthread_create(&p, &attr, threadentry, ts);
pthread_sigmask(SIG_SETMASK, &oset, nil);
if (err != 0) {
fatalf("pthread_create failed: %s", strerror(err));
}
}
extern void crosscall1(void (*fn)(void), void (*setg_gcc)(void*), void *g);
static void*
threadentry(void *v)
{
ThreadStart ts;
ts = *(ThreadStart*)v;
free(v);
crosscall1(ts.fn, setg_gcc, (void*)ts.g);
return nil;
}
void
x_cgo_init(G *g, void (*setg)(void*), void **tlsg, void **tlsbase)
{
setg_gcc = setg;
_cgo_set_stacklo(g, NULL);
if (x_cgo_inittls) {
x_cgo_inittls(tlsg, tlsbase);
}
}

63
src/runtime/cgo/gcc_linux_riscv64.c
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@ -1,63 +0,0 @@
// Copyright 2020 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 <pthread.h>
#include <string.h>
#include <signal.h>
#include "libcgo.h"
#include "libcgo_unix.h"
static void *threadentry(void*);
void (*x_cgo_inittls)(void **tlsg, void **tlsbase);
static void (*setg_gcc)(void*);
void
_cgo_sys_thread_start(ThreadStart *ts)
{
pthread_attr_t attr;
sigset_t ign, oset;
pthread_t p;
size_t size;
int err;
sigfillset(&ign);
pthread_sigmask(SIG_SETMASK, &ign, &oset);
pthread_attr_init(&attr);
pthread_attr_getstacksize(&attr, &size);
// Leave stacklo=0 and set stackhi=size; mstart will do the rest.
ts->g->stackhi = size;
err = _cgo_try_pthread_create(&p, &attr, threadentry, ts);
pthread_sigmask(SIG_SETMASK, &oset, nil);
if (err != 0) {
fatalf("pthread_create failed: %s", strerror(err));
}
}
extern void crosscall1(void (*fn)(void), void (*setg_gcc)(void*), void *g);
static void*
threadentry(void *v)
{
ThreadStart ts;
ts = *(ThreadStart*)v;
free(v);
crosscall1(ts.fn, setg_gcc, (void*)ts.g);
return nil;
}
void
x_cgo_init(G *g, void (*setg)(void*), void **tlsg, void **tlsbase)
{
setg_gcc = setg;
_cgo_set_stacklo(g, NULL);
if (x_cgo_inittls) {
x_cgo_inittls(tlsg, tlsbase);
}
}