all: clean up addition of constants in riscv64 assembly

[gostls13.git] / src / runtime / sys_linux_riscv64.s

diff --git a/src/runtime/sys_linux_riscv64.s b/src/runtime/sys_linux_riscv64.s
index afb2d11da98fdc6af4abdac1e0f3a4b228fd502f..ffec2b5b759e926ba90eea851324a3276f1e110d 100644 (file)
--- a/src/runtime/sys_linux_riscv64.s
+++ b/src/runtime/sys_linux_riscv64.s
@@ -18,13 +18,9 @@
 #define SYS_clone              220
 #define SYS_close              57
 #define SYS_connect            203
-#define SYS_epoll_create1      20
-#define SYS_epoll_ctl          21
-#define SYS_epoll_pwait                22
 #define SYS_exit               93
 #define SYS_exit_group         94
 #define SYS_faccessat          48
-#define SYS_fcntl              25
 #define SYS_futex              98
 #define SYS_getpid             172
 #define SYS_gettid             178
@@ -61,7 +57,7 @@ TEXT runtime·exit(SB),NOSPLIT|NOFRAME,$0-4
        ECALL
        RET
 
-// func exitThread(wait *uint32)
+// func exitThread(wait *atomic.Uint32)
 TEXT runtime·exitThread(SB),NOSPLIT|NOFRAME,$0-8
        MOV     wait+0(FP), A0
        // We're done using the stack.
@@ -260,7 +256,7 @@ TEXT runtime·walltime(SB),NOSPLIT,$40-12
        MOV     (g_sched+gobuf_sp)(T1), X2
 
 noswitch:
-       ADDI    $-24, X2 // Space for result
+       SUB     $24, X2 // Space for result
        ANDI    $~7, X2 // Align for C code
        MOV     $8(X2), A1
 
@@ -332,7 +328,7 @@ TEXT runtime·nanotime1(SB),NOSPLIT,$40-8
        MOV     (g_sched+gobuf_sp)(T1), X2
 
 noswitch:
-       ADDI    $-24, X2 // Space for result
+       SUB     $24, X2 // Space for result
        ANDI    $~7, X2 // Align for C code
        MOV     $8(X2), A1
 
@@ -578,54 +574,6 @@ TEXT runtime·sched_getaffinity(SB),NOSPLIT|NOFRAME,$0
        MOV     A0, ret+24(FP)
        RET
 
-// func epollcreate(size int32) int32
-TEXT runtime·epollcreate(SB),NOSPLIT|NOFRAME,$0
-       MOV     $0, A0
-       MOV     $SYS_epoll_create1, A7
-       ECALL
-       MOVW    A0, ret+8(FP)
-       RET
-
-// func epollcreate1(flags int32) int32
-TEXT runtime·epollcreate1(SB),NOSPLIT|NOFRAME,$0
-       MOVW    flags+0(FP), A0
-       MOV     $SYS_epoll_create1, A7
-       ECALL
-       MOVW    A0, ret+8(FP)
-       RET
-
-// func epollctl(epfd, op, fd int32, ev *epollevent) int32
-TEXT runtime·epollctl(SB),NOSPLIT|NOFRAME,$0
-       MOVW    epfd+0(FP), A0
-       MOVW    op+4(FP), A1
-       MOVW    fd+8(FP), A2
-       MOV     ev+16(FP), A3
-       MOV     $SYS_epoll_ctl, A7
-       ECALL
-       MOVW    A0, ret+24(FP)
-       RET
-
-// func epollwait(epfd int32, ev *epollevent, nev, timeout int32) int32
-TEXT runtime·epollwait(SB),NOSPLIT|NOFRAME,$0
-       MOVW    epfd+0(FP), A0
-       MOV     ev+8(FP), A1
-       MOVW    nev+16(FP), A2
-       MOVW    timeout+20(FP), A3
-       MOV     $0, A4
-       MOV     $SYS_epoll_pwait, A7
-       ECALL
-       MOVW    A0, ret+24(FP)
-       RET
-
-// func closeonexec(int32)
-TEXT runtime·closeonexec(SB),NOSPLIT|NOFRAME,$0
-       MOVW    fd+0(FP), A0  // fd
-       MOV     $2, A1  // F_SETFD
-       MOV     $1, A2  // FD_CLOEXEC
-       MOV     $SYS_fcntl, A7
-       ECALL
-       RET
-
 // func sbrk0() uintptr
 TEXT runtime·sbrk0(SB),NOSPLIT,$0-8
        // Implemented as brk(NULL).