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runtime: move semaphore ops from system calls to libc calls on iOS

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Change-Id: I1c7a12497c47dd166cc41230d6e5e005edcbc848
Reviewed-on: https://go-review.googlesource.com/118819
Run-TryBot: Keith Randall <khr@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
This commit is contained in:
Elias Naur 2018-06-14 10:23:10 +02:00 committed by Keith Randall
parent 5b5473c6bf
commit cdffe9b1e3
4 changed files with 135 additions and 278 deletions
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93
src/runtime/defs_darwin_arm.go
View File

@ -8,8 +8,9 @@ package runtime
import "unsafe"
const (
_EINTR = 0x4
_EFAULT = 0xe
_EINTR = 0x4
_EFAULT = 0xe
_ETIMEDOUT = 0x3c
_PROT_NONE = 0x0
_PROT_READ = 0x1
@ -23,40 +24,6 @@ const (
_MADV_DONTNEED = 0x4
_MADV_FREE = 0x5
_MACH_MSG_TYPE_MOVE_RECEIVE = 0x10
_MACH_MSG_TYPE_MOVE_SEND = 0x11
_MACH_MSG_TYPE_MOVE_SEND_ONCE = 0x12
_MACH_MSG_TYPE_COPY_SEND = 0x13
_MACH_MSG_TYPE_MAKE_SEND = 0x14
_MACH_MSG_TYPE_MAKE_SEND_ONCE = 0x15
_MACH_MSG_TYPE_COPY_RECEIVE = 0x16
_MACH_MSG_PORT_DESCRIPTOR = 0x0
_MACH_MSG_OOL_DESCRIPTOR = 0x1
_MACH_MSG_OOL_PORTS_DESCRIPTOR = 0x2
_MACH_MSG_OOL_VOLATILE_DESCRIPTOR = 0x3
_MACH_MSGH_BITS_COMPLEX = 0x80000000
_MACH_SEND_MSG = 0x1
_MACH_RCV_MSG = 0x2
_MACH_RCV_LARGE = 0x4
_MACH_SEND_TIMEOUT = 0x10
_MACH_SEND_INTERRUPT = 0x40
_MACH_SEND_ALWAYS = 0x10000
_MACH_SEND_TRAILER = 0x20000
_MACH_RCV_TIMEOUT = 0x100
_MACH_RCV_NOTIFY = 0x200
_MACH_RCV_INTERRUPT = 0x400
_MACH_RCV_OVERWRITE = 0x1000
_NDR_PROTOCOL_2_0 = 0x0
_NDR_INT_BIG_ENDIAN = 0x0
_NDR_INT_LITTLE_ENDIAN = 0x1
_NDR_FLOAT_IEEE = 0x0
_NDR_CHAR_ASCII = 0x0
_SA_SIGINFO = 0x40
_SA_RESTART = 0x2
_SA_ONSTACK = 0x1
@ -130,38 +97,6 @@ const (
_FD_CLOEXEC = 0x1
)
type machbody struct {
msgh_descriptor_count uint32
}
type machheader struct {
msgh_bits uint32
msgh_size uint32
msgh_remote_port uint32
msgh_local_port uint32
msgh_reserved uint32
msgh_id int32
}
type machndr struct {
mig_vers uint8
if_vers uint8
reserved1 uint8
mig_encoding uint8
int_rep uint8
char_rep uint8
float_rep uint8
reserved2 uint8
}
type machport struct {
name uint32
pad1 uint32
pad2 uint16
disposition uint8
_type uint8
}
type stackt struct {
ss_sp *byte
ss_size uintptr
@ -213,6 +148,12 @@ type timespec struct {
tv_nsec int32
}
//go:nosplit
func (t *timespec) set_nsec(ns int64) {
t.tv_sec = int32(ns / 1000000000)
t.tv_nsec = int32(ns % 1000000000)
}
type floatstate32 struct {
r [32]uint32
fpscr uint32
@ -261,6 +202,22 @@ type pthreadattr struct {
X__sig int32
X__opaque [36]int8
}
type pthreadmutex struct {
X__sig int32
X__opaque [40]int8
}
type pthreadmutexattr struct {
X__sig int32
X__opaque [8]int8
}
type pthreadcond struct {
X__sig int32
X__opaque [24]int8
}
type pthreadcondattr struct {
X__sig int32
X__opaque [4]int8
}
type machTimebaseInfo struct {
numer uint32

93
src/runtime/defs_darwin_arm64.go
View File

@ -6,8 +6,9 @@ package runtime
import "unsafe"
const (
_EINTR = 0x4
_EFAULT = 0xe
_EINTR = 0x4
_EFAULT = 0xe
_ETIMEDOUT = 0x3c
_PROT_NONE = 0x0
_PROT_READ = 0x1
@ -21,40 +22,6 @@ const (
_MADV_DONTNEED = 0x4
_MADV_FREE = 0x5
_MACH_MSG_TYPE_MOVE_RECEIVE = 0x10
_MACH_MSG_TYPE_MOVE_SEND = 0x11
_MACH_MSG_TYPE_MOVE_SEND_ONCE = 0x12
_MACH_MSG_TYPE_COPY_SEND = 0x13
_MACH_MSG_TYPE_MAKE_SEND = 0x14
_MACH_MSG_TYPE_MAKE_SEND_ONCE = 0x15
_MACH_MSG_TYPE_COPY_RECEIVE = 0x16
_MACH_MSG_PORT_DESCRIPTOR = 0x0
_MACH_MSG_OOL_DESCRIPTOR = 0x1
_MACH_MSG_OOL_PORTS_DESCRIPTOR = 0x2
_MACH_MSG_OOL_VOLATILE_DESCRIPTOR = 0x3
_MACH_MSGH_BITS_COMPLEX = 0x80000000
_MACH_SEND_MSG = 0x1
_MACH_RCV_MSG = 0x2
_MACH_RCV_LARGE = 0x4
_MACH_SEND_TIMEOUT = 0x10
_MACH_SEND_INTERRUPT = 0x40
_MACH_SEND_ALWAYS = 0x10000
_MACH_SEND_TRAILER = 0x20000
_MACH_RCV_TIMEOUT = 0x100
_MACH_RCV_NOTIFY = 0x200
_MACH_RCV_INTERRUPT = 0x400
_MACH_RCV_OVERWRITE = 0x1000
_NDR_PROTOCOL_2_0 = 0x0
_NDR_INT_BIG_ENDIAN = 0x0
_NDR_INT_LITTLE_ENDIAN = 0x1
_NDR_FLOAT_IEEE = 0x0
_NDR_CHAR_ASCII = 0x0
_SA_SIGINFO = 0x40
_SA_RESTART = 0x2
_SA_ONSTACK = 0x1
@ -128,38 +95,6 @@ const (
_FD_CLOEXEC = 0x1
)
type machbody struct {
msgh_descriptor_count uint32
}
type machheader struct {
msgh_bits uint32
msgh_size uint32
msgh_remote_port uint32
msgh_local_port uint32
msgh_reserved uint32
msgh_id int32
}
type machndr struct {
mig_vers uint8
if_vers uint8
reserved1 uint8
mig_encoding uint8
int_rep uint8
char_rep uint8
float_rep uint8
reserved2 uint8
}
type machport struct {
name uint32
pad1 uint32
pad2 uint16
disposition uint8
_type uint8
}
type stackt struct {
ss_sp *byte
ss_size uintptr
@ -213,6 +148,12 @@ type timespec struct {
tv_nsec int64
}
//go:nosplit
func (t *timespec) set_nsec(ns int64) {
t.tv_sec = ns / 1000000000
t.tv_nsec = ns % 1000000000
}
type exceptionstate64 struct {
far uint64 // virtual fault addr
esr uint32 // exception syndrome
@ -264,6 +205,22 @@ type pthreadattr struct {
X__sig int64
X__opaque [56]int8
}
type pthreadmutex struct {
X__sig int64
X__opaque [56]int8
}
type pthreadmutexattr struct {
X__sig int64
X__opaque [8]int8
}
type pthreadcond struct {
X__sig int64
X__opaque [40]int8
}
type pthreadcondattr struct {
X__sig int64
X__opaque [8]int8
}
type machTimebaseInfo struct {
numer uint32

113
src/runtime/sys_darwin_arm.s
View File

@ -3,8 +3,8 @@
// license that can be found in the LICENSE file.
// System calls and other sys.stuff for ARM, Darwin
// See http://fxr.watson.org/fxr/source/bsd/kern/syscalls.c?v=xnu-1228
// or /usr/include/sys/syscall.h (on a Mac) for system call numbers.
// System calls are implemented in libSystem, this file contains
// trampolines that convert from Go to C calling convention.
#include "go_asm.h"
#include "go_tls.h"
@ -265,75 +265,6 @@ TEXT runtime·sysctl_trampoline(SB),NOSPLIT,$0
ADD $(2*4), R13
RET
// uint32 mach_msg_trap(void*, uint32, uint32, uint32, uint32, uint32, uint32)
TEXT runtime·mach_msg_trap(SB),NOSPLIT,$0
MOVW h+0(FP), R0
MOVW op+4(FP), R1
MOVW send_size+8(FP), R2
MOVW rcv_size+12(FP), R3
MOVW rcv_name+16(FP), R4
MOVW timeout+20(FP), R5
MOVW notify+24(FP), R6
MVN $30, R12
SWI $0x80
MOVW R0, ret+28(FP)
RET
TEXT runtime·mach_task_self(SB),NOSPLIT,$0
MVN $27, R12 // task_self_trap
SWI $0x80
MOVW R0, ret+0(FP)
RET
TEXT runtime·mach_thread_self(SB),NOSPLIT,$0
MVN $26, R12 // thread_self_trap
SWI $0x80
MOVW R0, ret+0(FP)
RET
TEXT runtime·mach_reply_port(SB),NOSPLIT,$0
MVN $25, R12 // mach_reply_port
SWI $0x80
MOVW R0, ret+0(FP)
RET
// Mach provides trap versions of the semaphore ops,
// instead of requiring the use of RPC.
// uint32 mach_semaphore_wait(uint32)
TEXT runtime·mach_semaphore_wait(SB),NOSPLIT,$0
MOVW sema+0(FP), R0
MVN $35, R12 // semaphore_wait_trap
SWI $0x80
MOVW R0, ret+4(FP)
RET
// uint32 mach_semaphore_timedwait(uint32, uint32, uint32)
TEXT runtime·mach_semaphore_timedwait(SB),NOSPLIT,$0
MOVW sema+0(FP), R0
MOVW sec+4(FP), R1
MOVW nsec+8(FP), R2
MVN $37, R12 // semaphore_timedwait_trap
SWI $0x80
MOVW R0, ret+12(FP)
RET
// uint32 mach_semaphore_signal(uint32)
TEXT runtime·mach_semaphore_signal(SB),NOSPLIT,$0
MOVW sema+0(FP), R0
MVN $32, R12 // semaphore_signal_trap
SWI $0x80
MOVW R0, ret+4(FP)
RET
// uint32 mach_semaphore_signal_all(uint32)
TEXT runtime·mach_semaphore_signal_all(SB),NOSPLIT,$0
MOVW sema+0(FP), R0
MVN $33, R12 // semaphore_signal_all_trap
SWI $0x80
MOVW R0, ret+4(FP)
RET
TEXT runtime·kqueue_trampoline(SB),NOSPLIT,$0
BL libc_kqueue(SB)
RET
@ -408,3 +339,43 @@ TEXT runtime·raise_trampoline(SB),NOSPLIT,$0
MOVW 0(R0), R0 // arg 1 sig
BL libc_raise(SB)
RET
TEXT runtime·pthread_mutex_init_trampoline(SB),NOSPLIT,$0
MOVW 4(R0), R1 // arg 2 attr
MOVW 0(R0), R0 // arg 1 mutex
BL libc_pthread_mutex_init(SB)
RET
TEXT runtime·pthread_mutex_lock_trampoline(SB),NOSPLIT,$0
MOVW 0(R0), R0 // arg 1 mutex
BL libc_pthread_mutex_lock(SB)
RET
TEXT runtime·pthread_mutex_unlock_trampoline(SB),NOSPLIT,$0
MOVW 0(R0), R0 // arg 1 mutex
BL libc_pthread_mutex_unlock(SB)
RET
TEXT runtime·pthread_cond_init_trampoline(SB),NOSPLIT,$0
MOVW 4(R0), R1 // arg 2 attr
MOVW 0(R0), R0 // arg 1 cond
BL libc_pthread_cond_init(SB)
RET
TEXT runtime·pthread_cond_wait_trampoline(SB),NOSPLIT,$0
MOVW 4(R0), R1 // arg 2 mutex
MOVW 0(R0), R0 // arg 1 cond
BL libc_pthread_cond_wait(SB)
RET
TEXT runtime·pthread_cond_timedwait_trampoline(SB),NOSPLIT,$0
MOVW 4(R0), R1 // arg 2 mutex
MOVW 8(R0), R2 // arg 3 timeout
MOVW 0(R0), R0 // arg 1 cond
BL libc_pthread_cond_timedwait(SB)
RET
TEXT runtime·pthread_cond_signal_trampoline(SB),NOSPLIT,$0
MOVW 0(R0), R0 // arg 1 cond
BL libc_pthread_cond_signal(SB)
RET

114
src/runtime/sys_darwin_arm64.s
View File

@ -3,8 +3,8 @@
// license that can be found in the LICENSE file.
// System calls and other sys.stuff for ARM64, Darwin
// See http://fxr.watson.org/fxr/source/bsd/kern/syscalls.c?v=xnu-1228
// or /usr/include/sys/syscall.h (on a Mac) for system call numbers.
// System calls are implemented in libSystem, this file contains
// trampolines that convert from Go to C calling convention.
#include "go_asm.h"
#include "go_tls.h"
@ -258,75 +258,6 @@ TEXT runtime·sysctl_trampoline(SB),NOSPLIT,$0
BL libc_sysctl(SB)
RET
// uint32 mach_msg_trap(void*, uint32, uint32, uint32, uint32, uint32, uint32)
TEXT runtime·mach_msg_trap(SB),NOSPLIT,$0
MOVD h+0(FP), R0
MOVW op+8(FP), R1
MOVW send_size+12(FP), R2
MOVW rcv_size+16(FP), R3
MOVW rcv_name+20(FP), R4
MOVW timeout+24(FP), R5
MOVW notify+28(FP), R6
MOVN $30, R16
SVC $0x80
MOVW R0, ret+32(FP)
RET
TEXT runtime·mach_task_self(SB),NOSPLIT,$0
MOVN $27, R16 // task_self_trap
SVC $0x80
MOVW R0, ret+0(FP)
RET
TEXT runtime·mach_thread_self(SB),NOSPLIT,$0
MOVN $26, R16 // thread_self_trap
SVC $0x80
MOVW R0, ret+0(FP)
RET
TEXT runtime·mach_reply_port(SB),NOSPLIT,$0
MOVN $25, R16 // mach_reply_port
SVC $0x80
MOVW R0, ret+0(FP)
RET
// Mach provides trap versions of the semaphore ops,
// instead of requiring the use of RPC.
// uint32 mach_semaphore_wait(uint32)
TEXT runtime·mach_semaphore_wait(SB),NOSPLIT,$0
MOVW sema+0(FP), R0
MOVN $35, R16 // semaphore_wait_trap
SVC $0x80
MOVW R0, ret+8(FP)
RET
// uint32 mach_semaphore_timedwait(uint32, uint32, uint32)
TEXT runtime·mach_semaphore_timedwait(SB),NOSPLIT,$0
MOVW sema+0(FP), R0
MOVW sec+4(FP), R1
MOVW nsec+8(FP), R2
MOVN $37, R16 // semaphore_timedwait_trap
SVC $0x80
MOVW R0, ret+16(FP)
RET
// uint32 mach_semaphore_signal(uint32)
TEXT runtime·mach_semaphore_signal(SB),NOSPLIT,$0
MOVW sema+0(FP), R0
MOVN $32, R16 // semaphore_signal_trap
SVC $0x80
MOVW R0, ret+8(FP)
RET
// uint32 mach_semaphore_signal_all(uint32)
TEXT runtime·mach_semaphore_signal_all(SB),NOSPLIT,$0
MOVW sema+0(FP), R0
MOVN $33, R16 // semaphore_signal_all_trap
SVC $0x80
MOVW R0, ret+8(FP)
RET
TEXT runtime·kqueue_trampoline(SB),NOSPLIT,$0
BL libc_kqueue(SB)
RET
@ -397,3 +328,44 @@ TEXT runtime·raise_trampoline(SB),NOSPLIT,$0
MOVW 0(R0), R0 // arg 1 sig
BL libc_raise(SB)
RET
TEXT runtime·pthread_mutex_init_trampoline(SB),NOSPLIT,$0
MOVD 8(R0), R1 // arg 2 attr
MOVD 0(R0), R0 // arg 1 mutex
BL libc_pthread_mutex_init(SB)
RET
TEXT runtime·pthread_mutex_lock_trampoline(SB),NOSPLIT,$0
MOVD 0(R0), R0 // arg 1 mutex
BL libc_pthread_mutex_lock(SB)
RET
TEXT runtime·pthread_mutex_unlock_trampoline(SB),NOSPLIT,$0
MOVD 0(R0), R0 // arg 1 mutex
BL libc_pthread_mutex_unlock(SB)
RET
TEXT runtime·pthread_cond_init_trampoline(SB),NOSPLIT,$0
MOVD 8(R0), R1 // arg 2 attr
MOVD 0(R0), R0 // arg 1 cond
BL libc_pthread_cond_init(SB)
RET
TEXT runtime·pthread_cond_wait_trampoline(SB),NOSPLIT,$0
MOVD 8(R0), R1 // arg 2 mutex
MOVD 0(R0), R0 // arg 1 cond
BL libc_pthread_cond_wait(SB)
RET
TEXT runtime·pthread_cond_timedwait_trampoline(SB),NOSPLIT,$0
MOVD 8(R0), R1 // arg 2 mutex
MOVD 16(R0), R2 // arg 3 timeout
MOVD 0(R0), R0 // arg 1 cond
BL libc_pthread_cond_timedwait(SB)
RET
TEXT runtime·pthread_cond_signal_trampoline(SB),NOSPLIT,$0
MOVD 0(R0), R0 // arg 1 cond
BL libc_pthread_cond_signal(SB)
RET