runtime: add symbolic constants for freebsd/386 syscalls

Brings freebsd/386 on par with other OSes/archs.

Updates #53479

Change-Id: I16a7d051233e06e589b19919e68f07b6bf92f73c
Reviewed-on: https://go-review.googlesource.com/c/go/+/413365
TryBot-Result: Gopher Robot <gobot@golang.org>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: Michael Pratt <mpratt@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Run-TryBot: Ian Lance Taylor <iant@google.com>

diff --git a/src/runtime/sys_freebsd_386.s b/src/runtime/sys_freebsd_386.s
index 9e5210b0db71ce17ca469465f436b290d4bd0b0b..e10c89665c628984d96c16288cf03da425e42f99 100644 (file)
--- a/src/runtime/sys_freebsd_386.s
+++ b/src/runtime/sys_freebsd_386.s
@@ -10,8 +10,44 @@
 #include "go_tls.h"
 #include "textflag.h"
 
+#define CLOCK_REALTIME         0
+#define CLOCK_MONOTONIC                4
+#define FD_CLOEXEC             1
+#define F_SETFD                        2
+
+#define SYS_exit               1
+#define SYS_read               3
+#define SYS_write              4
+#define SYS_open               5
+#define SYS_close              6
+#define SYS_getpid             20
+#define SYS_kill               37
+#define SYS_sigaltstack                53
+#define SYS_munmap             73
+#define SYS_madvise            75
+#define SYS_setitimer          83
+#define SYS_fcntl              92
+#define SYS_sysarch            165
+#define SYS___sysctl           202
+#define SYS_clock_gettime      232
+#define SYS_nanosleep          240
+#define SYS_sched_yield                331
+#define SYS_sigprocmask                340
+#define SYS_kqueue             362
+#define SYS_kevent             363
+#define SYS_sigaction          416
+#define SYS_sigreturn          417
+#define SYS_thr_exit           431
+#define SYS_thr_self           432
+#define SYS_thr_kill           433
+#define SYS__umtx_op           454
+#define SYS_thr_new            455
+#define SYS_mmap               477
+#define SYS_cpuset_getaffinity 487
+#define SYS_pipe2              542
+
 TEXT runtime·sys_umtx_op(SB),NOSPLIT,$-4
-       MOVL    $454, AX
+       MOVL    $SYS__umtx_op, AX
        INT     $0x80
        JAE     2(PC)
        NEGL    AX
@@ -19,7 +55,7 @@ TEXT runtime·sys_umtx_op(SB),NOSPLIT,$-4
        RET
 
 TEXT runtime·thr_new(SB),NOSPLIT,$-4
-       MOVL    $455, AX
+       MOVL    $SYS_thr_new, AX
        INT     $0x80
        JAE     2(PC)
        NEGL    AX
@@ -54,7 +90,7 @@ TEXT runtime·thr_start(SB),NOSPLIT,$0
 
 // Exit the entire program (like C exit)
 TEXT runtime·exit(SB),NOSPLIT,$-4
-       MOVL    $1, AX
+       MOVL    $SYS_exit, AX
        INT     $0x80
        MOVL    $0xf1, 0xf1  // crash
        RET
@@ -72,13 +108,13 @@ TEXT runtime·exitThread(SB),NOSPLIT,$0-4
        // on the stack. We want to pass 0, so switch over to a fake
        // stack of 0s. It won't write to the stack.
        MOVL    $exitStack<>(SB), SP
-       MOVL    $431, AX        // thr_exit
+       MOVL    $SYS_thr_exit, AX
        INT     $0x80
        MOVL    $0xf1, 0xf1  // crash
        JMP     0(PC)
 
 TEXT runtime·open(SB),NOSPLIT,$-4
-       MOVL    $5, AX
+       MOVL    $SYS_open, AX
        INT     $0x80
        JAE     2(PC)
        MOVL    $-1, AX
@@ -86,7 +122,7 @@ TEXT runtime·open(SB),NOSPLIT,$-4
        RET
 
 TEXT runtime·closefd(SB),NOSPLIT,$-4
-       MOVL    $6, AX
+       MOVL    $SYS_close, AX
        INT     $0x80
        JAE     2(PC)
        MOVL    $-1, AX
@@ -94,7 +130,7 @@ TEXT runtime·closefd(SB),NOSPLIT,$-4
        RET
 
 TEXT runtime·read(SB),NOSPLIT,$-4
-       MOVL    $3, AX
+       MOVL    $SYS_read, AX
        INT     $0x80
        JAE     2(PC)
        NEGL    AX                      // caller expects negative errno
@@ -103,7 +139,7 @@ TEXT runtime·read(SB),NOSPLIT,$-4
 
 // func pipe2(flags int32) (r, w int32, errno int32)
 TEXT runtime·pipe2(SB),NOSPLIT,$12-16
-       MOVL    $542, AX
+       MOVL    $SYS_pipe2, AX
        LEAL    r+4(FP), BX
        MOVL    BX, 4(SP)
        MOVL    flags+0(FP), BX
@@ -115,7 +151,7 @@ TEXT runtime·pipe2(SB),NOSPLIT,$12-16
        RET
 
 TEXT runtime·write1(SB),NOSPLIT,$-4
-       MOVL    $4, AX
+       MOVL    $SYS_write, AX
        INT     $0x80
        JAE     2(PC)
        NEGL    AX                      // caller expects negative errno
@@ -126,25 +162,25 @@ TEXT runtime·thr_self(SB),NOSPLIT,$8-4
        // thr_self(&0(FP))
        LEAL    ret+0(FP), AX
        MOVL    AX, 4(SP)
-       MOVL    $432, AX
+       MOVL    $SYS_thr_self, AX
        INT     $0x80
        RET
 
 TEXT runtime·thr_kill(SB),NOSPLIT,$-4
        // thr_kill(tid, sig)
-       MOVL    $433, AX
+       MOVL    $SYS_thr_kill, AX
        INT     $0x80
        RET
 
 TEXT runtime·raiseproc(SB),NOSPLIT,$16
        // getpid
-       MOVL    $20, AX
+       MOVL    $SYS_getpid, AX
        INT     $0x80
        // kill(self, sig)
        MOVL    AX, 4(SP)
        MOVL    sig+0(FP), AX
        MOVL    AX, 8(SP)
-       MOVL    $37, AX
+       MOVL    $SYS_kill, AX
        INT     $0x80
        RET
 
@@ -160,7 +196,7 @@ TEXT runtime·mmap(SB),NOSPLIT,$32
        MOVSL
        MOVL    $0, AX  // top 32 bits of file offset
        STOSL
-       MOVL    $477, AX
+       MOVL    $SYS_mmap, AX
        INT     $0x80
        JAE     ok
        MOVL    $0, p+24(FP)
@@ -172,14 +208,14 @@ ok:
        RET
 
 TEXT runtime·munmap(SB),NOSPLIT,$-4
-       MOVL    $73, AX
+       MOVL    $SYS_munmap, AX
        INT     $0x80
        JAE     2(PC)
        MOVL    $0xf1, 0xf1  // crash
        RET
 
 TEXT runtime·madvise(SB),NOSPLIT,$-4
-       MOVL    $75, AX // madvise
+       MOVL    $SYS_madvise, AX
        INT     $0x80
        JAE     2(PC)
        MOVL    $-1, AX
@@ -187,15 +223,15 @@ TEXT runtime·madvise(SB),NOSPLIT,$-4
        RET
 
 TEXT runtime·setitimer(SB), NOSPLIT, $-4
-       MOVL    $83, AX
+       MOVL    $SYS_setitimer, AX
        INT     $0x80
        RET
 
 // func fallback_walltime() (sec int64, nsec int32)
 TEXT runtime·fallback_walltime(SB), NOSPLIT, $32-12
-       MOVL    $232, AX // clock_gettime
+       MOVL    $SYS_clock_gettime, AX
        LEAL    12(SP), BX
-       MOVL    $0, 4(SP)       // CLOCK_REALTIME
+       MOVL    $CLOCK_REALTIME, 4(SP)
        MOVL    BX, 8(SP)
        INT     $0x80
        MOVL    12(SP), AX      // sec
@@ -209,9 +245,9 @@ TEXT runtime·fallback_walltime(SB), NOSPLIT, $32-12
 
 // func fallback_nanotime() int64
 TEXT runtime·fallback_nanotime(SB), NOSPLIT, $32-8
-       MOVL    $232, AX
+       MOVL    $SYS_clock_gettime, AX
        LEAL    12(SP), BX
-       MOVL    $4, 4(SP)       // CLOCK_MONOTONIC
+       MOVL    $CLOCK_MONOTONIC, 4(SP)
        MOVL    BX, 8(SP)
        INT     $0x80
        MOVL    12(SP), AX      // sec
@@ -230,7 +266,7 @@ TEXT runtime·fallback_nanotime(SB), NOSPLIT, $32-8
 
 
 TEXT runtime·asmSigaction(SB),NOSPLIT,$-4
-       MOVL    $416, AX
+       MOVL    $SYS_sigaction, AX
        INT     $0x80
        MOVL    AX, ret+12(FP)
        RET
@@ -267,13 +303,13 @@ TEXT runtime·sigtramp(SB),NOSPLIT|TOPFRAME,$12
        MOVL    24(SP), AX      // context
        MOVL    $0, 0(SP)       // syscall gap
        MOVL    AX, 4(SP)
-       MOVL    $417, AX        // sigreturn(ucontext)
+       MOVL    $SYS_sigreturn, AX
        INT     $0x80
        MOVL    $0xf1, 0xf1  // crash
        RET
 
 TEXT runtime·sigaltstack(SB),NOSPLIT,$0
-       MOVL    $53, AX
+       MOVL    $SYS_sigaltstack, AX
        INT     $0x80
        JAE     2(PC)
        MOVL    $0xf1, 0xf1  // crash
@@ -293,7 +329,7 @@ TEXT runtime·usleep(SB),NOSPLIT,$20
        LEAL    12(SP), AX
        MOVL    AX, 4(SP)               // arg 1 - rqtp
        MOVL    $0, 8(SP)               // arg 2 - rmtp
-       MOVL    $240, AX                // sys_nanosleep
+       MOVL    $SYS_nanosleep, AX
        INT     $0x80
        RET
 
@@ -352,7 +388,7 @@ TEXT i386_set_ldt<>(SB),NOSPLIT,$16
        MOVL    $0, 0(SP)       // syscall gap
        MOVL    $1, 4(SP)
        MOVL    AX, 8(SP)
-       MOVL    $165, AX
+       MOVL    $SYS_sysarch, AX
        INT     $0x80
        JAE     2(PC)
        INT     $3
@@ -368,7 +404,7 @@ TEXT runtime·sysctl(SB),NOSPLIT,$28
        MOVSL                           // arg 4 - oldlenp
        MOVSL                           // arg 5 - newp
        MOVSL                           // arg 6 - newlen
-       MOVL    $202, AX                // sys___sysctl
+       MOVL    $SYS___sysctl, AX
        INT     $0x80
        JAE     4(PC)
        NEGL    AX
@@ -379,7 +415,7 @@ TEXT runtime·sysctl(SB),NOSPLIT,$28
        RET
 
 TEXT runtime·osyield(SB),NOSPLIT,$-4
-       MOVL    $331, AX                // sys_sched_yield
+       MOVL    $SYS_sched_yield, AX
        INT     $0x80
        RET
 
@@ -391,7 +427,7 @@ TEXT runtime·sigprocmask(SB),NOSPLIT,$16
        MOVL    AX, 8(SP)               // arg 2 - set
        MOVL    old+8(FP), AX
        MOVL    AX, 12(SP)              // arg 3 - oset
-       MOVL    $340, AX                // sys_sigprocmask
+       MOVL    $SYS_sigprocmask, AX
        INT     $0x80
        JAE     2(PC)
        MOVL    $0xf1, 0xf1  // crash
@@ -399,7 +435,7 @@ TEXT runtime·sigprocmask(SB),NOSPLIT,$16
 
 // int32 runtime·kqueue(void);
 TEXT runtime·kqueue(SB),NOSPLIT,$0
-       MOVL    $362, AX
+       MOVL    $SYS_kqueue, AX
        INT     $0x80
        JAE     2(PC)
        NEGL    AX
@@ -408,7 +444,7 @@ TEXT runtime·kqueue(SB),NOSPLIT,$0
 
 // int32 runtime·kevent(int kq, Kevent *changelist, int nchanges, Kevent *eventlist, int nevents, Timespec *timeout);
 TEXT runtime·kevent(SB),NOSPLIT,$0
-       MOVL    $363, AX
+       MOVL    $SYS_kevent, AX
        INT     $0x80
        JAE     2(PC)
        NEGL    AX
@@ -417,12 +453,12 @@ TEXT runtime·kevent(SB),NOSPLIT,$0
 
 // int32 runtime·closeonexec(int32 fd);
 TEXT runtime·closeonexec(SB),NOSPLIT,$32
-       MOVL    $92, AX         // fcntl
+       MOVL    $SYS_fcntl, AX
        // 0(SP) is where the caller PC would be; kernel skips it
        MOVL    fd+0(FP), BX
        MOVL    BX, 4(SP)       // fd
-       MOVL    $2, 8(SP)       // F_SETFD
-       MOVL    $1, 12(SP)      // FD_CLOEXEC
+       MOVL    $F_SETFD, 8(SP)
+       MOVL    $FD_CLOEXEC, 12(SP)
        INT     $0x80
        JAE     2(PC)
        NEGL    AX
@@ -430,7 +466,7 @@ TEXT runtime·closeonexec(SB),NOSPLIT,$32
 
 // func cpuset_getaffinity(level int, which int, id int64, size int, mask *byte) int32
 TEXT runtime·cpuset_getaffinity(SB), NOSPLIT, $0-28
-       MOVL    $487, AX
+       MOVL    $SYS_cpuset_getaffinity, AX
        INT     $0x80
        JAE     2(PC)
        NEGL    AX