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Diffstat (limited to 'src/pkg/runtime/sys_freebsd_amd64.s')
-rw-r--r--src/pkg/runtime/sys_freebsd_amd64.s345
1 files changed, 0 insertions, 345 deletions
diff --git a/src/pkg/runtime/sys_freebsd_amd64.s b/src/pkg/runtime/sys_freebsd_amd64.s
deleted file mode 100644
index 4c5b32504..000000000
--- a/src/pkg/runtime/sys_freebsd_amd64.s
+++ /dev/null
@@ -1,345 +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.
-//
-// System calls and other sys.stuff for AMD64, FreeBSD
-// /usr/src/sys/kern/syscalls.master for syscall numbers.
-//
-
-#include "zasm_GOOS_GOARCH.h"
-#include "../../cmd/ld/textflag.h"
-
-// FreeBSD 8, FreeBSD 9, and older versions that I have checked
-// do not restore R10 on exit from a "restarted" system call
-// if you use the SYSCALL instruction. This means that, for example,
-// if a signal arrives while the wait4 system call is executing,
-// the wait4 internally returns ERESTART, which makes the kernel
-// back up the PC to execute the SYSCALL instruction a second time.
-// However, since the kernel does not restore R10, the fourth
-// argument to the system call has been lost. (FreeBSD 9 also fails
-// to restore the fifth and sixth arguments, R8 and R9, although
-// some earlier versions did restore those correctly.)
-// The broken code is in fast_syscall in FreeBSD's amd64/amd64/exception.S.
-// It restores only DI, SI, DX, AX, and RFLAGS on system call return.
-// http://fxr.watson.org/fxr/source/amd64/amd64/exception.S?v=FREEBSD91#L399
-//
-// The INT $0x80 system call path (int0x80_syscall in FreeBSD's
-// amd64/ia32/ia32_exception.S) does not have this problem,
-// but it expects the third argument in R10. Instead of rewriting
-// all the assembly in this file, #define SYSCALL to a safe simulation
-// using INT $0x80.
-//
-// INT $0x80 is a little slower than SYSCALL, but correctness wins.
-//
-// See golang.org/issue/6372.
-#define SYSCALL MOVQ R10, CX; INT $0x80
-
-TEXT runtime·sys_umtx_op(SB),NOSPLIT,$0
- MOVQ 8(SP), DI
- MOVL 16(SP), SI
- MOVL 20(SP), DX
- MOVQ 24(SP), R10
- MOVQ 32(SP), R8
- MOVL $454, AX
- SYSCALL
- RET
-
-TEXT runtime·thr_new(SB),NOSPLIT,$0
- MOVQ 8(SP), DI
- MOVQ 16(SP), SI
- MOVL $455, AX
- SYSCALL
- RET
-
-TEXT runtime·thr_start(SB),NOSPLIT,$0
- MOVQ DI, R13 // m
-
- // set up FS to point at m->tls
- LEAQ m_tls(R13), DI
- CALL runtime·settls(SB) // smashes DI
-
- // set up m, g
- get_tls(CX)
- MOVQ R13, m(CX)
- MOVQ m_g0(R13), DI
- MOVQ DI, g(CX)
-
- CALL runtime·stackcheck(SB)
- CALL runtime·mstart(SB)
-
- MOVQ 0, AX // crash (not reached)
-
-// Exit the entire program (like C exit)
-TEXT runtime·exit(SB),NOSPLIT,$-8
- MOVL 8(SP), DI // arg 1 exit status
- MOVL $1, AX
- SYSCALL
- MOVL $0xf1, 0xf1 // crash
- RET
-
-TEXT runtime·exit1(SB),NOSPLIT,$-8
- MOVQ 8(SP), DI // arg 1 exit status
- MOVL $431, AX
- SYSCALL
- MOVL $0xf1, 0xf1 // crash
- RET
-
-TEXT runtime·open(SB),NOSPLIT,$-8
- MOVQ 8(SP), DI // arg 1 pathname
- MOVL 16(SP), SI // arg 2 flags
- MOVL 20(SP), DX // arg 3 mode
- MOVL $5, AX
- SYSCALL
- RET
-
-TEXT runtime·close(SB),NOSPLIT,$-8
- MOVL 8(SP), DI // arg 1 fd
- MOVL $6, AX
- SYSCALL
- RET
-
-TEXT runtime·read(SB),NOSPLIT,$-8
- MOVL 8(SP), DI // arg 1 fd
- MOVQ 16(SP), SI // arg 2 buf
- MOVL 24(SP), DX // arg 3 count
- MOVL $3, AX
- SYSCALL
- RET
-
-TEXT runtime·write(SB),NOSPLIT,$-8
- MOVL 8(SP), DI // arg 1 fd
- MOVQ 16(SP), SI // arg 2 buf
- MOVL 24(SP), DX // arg 3 count
- MOVL $4, AX
- SYSCALL
- RET
-
-TEXT runtime·getrlimit(SB),NOSPLIT,$-8
- MOVL 8(SP), DI
- MOVQ 16(SP), SI
- MOVL $194, AX
- SYSCALL
- RET
-
-TEXT runtime·raise(SB),NOSPLIT,$16
- // thr_self(&8(SP))
- LEAQ 8(SP), DI // arg 1 &8(SP)
- MOVL $432, AX
- SYSCALL
- // thr_kill(self, SIGPIPE)
- MOVQ 8(SP), DI // arg 1 id
- MOVL sig+0(FP), SI // arg 2
- MOVL $433, AX
- SYSCALL
- RET
-
-TEXT runtime·setitimer(SB), NOSPLIT, $-8
- MOVL 8(SP), DI
- MOVQ 16(SP), SI
- MOVQ 24(SP), DX
- MOVL $83, AX
- SYSCALL
- RET
-
-// func now() (sec int64, nsec int32)
-TEXT time·now(SB), NOSPLIT, $32
- MOVL $232, AX
- MOVQ $0, DI // CLOCK_REALTIME
- LEAQ 8(SP), SI
- SYSCALL
- MOVQ 8(SP), AX // sec
- MOVQ 16(SP), DX // nsec
-
- // sec is in AX, nsec in DX
- MOVQ AX, sec+0(FP)
- MOVL DX, nsec+8(FP)
- RET
-
-TEXT runtime·nanotime(SB), NOSPLIT, $32
- MOVL $232, AX
- // We can use CLOCK_MONOTONIC_FAST here when we drop
- // support for FreeBSD 8-STABLE.
- MOVQ $4, DI // CLOCK_MONOTONIC
- LEAQ 8(SP), SI
- SYSCALL
- MOVQ 8(SP), AX // sec
- MOVQ 16(SP), DX // nsec
-
- // sec is in AX, nsec in DX
- // return nsec in AX
- IMULQ $1000000000, AX
- ADDQ DX, AX
- RET
-
-TEXT runtime·sigaction(SB),NOSPLIT,$-8
- MOVL 8(SP), DI // arg 1 sig
- MOVQ 16(SP), SI // arg 2 act
- MOVQ 24(SP), DX // arg 3 oact
- MOVL $416, AX
- SYSCALL
- JCC 2(PC)
- MOVL $0xf1, 0xf1 // crash
- RET
-
-TEXT runtime·sigtramp(SB),NOSPLIT,$64
- get_tls(BX)
-
- // check that m exists
- MOVQ m(BX), BP
- CMPQ BP, $0
- JNE 5(PC)
- MOVQ DI, 0(SP)
- MOVQ $runtime·badsignal(SB), AX
- CALL AX
- RET
-
- // save g
- MOVQ g(BX), R10
- MOVQ R10, 40(SP)
-
- // g = m->signal
- MOVQ m_gsignal(BP), BP
- MOVQ BP, g(BX)
-
- MOVQ DI, 0(SP)
- MOVQ SI, 8(SP)
- MOVQ DX, 16(SP)
- MOVQ R10, 24(SP)
-
- CALL runtime·sighandler(SB)
-
- // restore g
- get_tls(BX)
- MOVQ 40(SP), R10
- MOVQ R10, g(BX)
- RET
-
-TEXT runtime·mmap(SB),NOSPLIT,$0
- MOVQ 8(SP), DI // arg 1 addr
- MOVQ 16(SP), SI // arg 2 len
- MOVL 24(SP), DX // arg 3 prot
- MOVL 28(SP), R10 // arg 4 flags
- MOVL 32(SP), R8 // arg 5 fid
- MOVL 36(SP), R9 // arg 6 offset
- MOVL $477, AX
- SYSCALL
- RET
-
-TEXT runtime·munmap(SB),NOSPLIT,$0
- MOVQ 8(SP), DI // arg 1 addr
- MOVQ 16(SP), SI // arg 2 len
- MOVL $73, AX
- SYSCALL
- JCC 2(PC)
- MOVL $0xf1, 0xf1 // crash
- RET
-
-TEXT runtime·madvise(SB),NOSPLIT,$0
- MOVQ 8(SP), DI
- MOVQ 16(SP), SI
- MOVQ 24(SP), DX
- MOVQ $75, AX // madvise
- SYSCALL
- // ignore failure - maybe pages are locked
- RET
-
-TEXT runtime·sigaltstack(SB),NOSPLIT,$-8
- MOVQ new+8(SP), DI
- MOVQ old+16(SP), SI
- MOVQ $53, AX
- SYSCALL
- JCC 2(PC)
- MOVL $0xf1, 0xf1 // crash
- RET
-
-TEXT runtime·usleep(SB),NOSPLIT,$16
- MOVL $0, DX
- MOVL usec+0(FP), AX
- MOVL $1000000, CX
- DIVL CX
- MOVQ AX, 0(SP) // tv_sec
- MOVL $1000, AX
- MULL DX
- MOVQ AX, 8(SP) // tv_nsec
-
- MOVQ SP, DI // arg 1 - rqtp
- MOVQ $0, SI // arg 2 - rmtp
- MOVL $240, AX // sys_nanosleep
- SYSCALL
- RET
-
-// set tls base to DI
-TEXT runtime·settls(SB),NOSPLIT,$8
- ADDQ $16, DI // adjust for ELF: wants to use -16(FS) and -8(FS) for g and m
- MOVQ DI, 0(SP)
- MOVQ SP, SI
- MOVQ $129, DI // AMD64_SET_FSBASE
- MOVQ $165, AX // sysarch
- SYSCALL
- JCC 2(PC)
- MOVL $0xf1, 0xf1 // crash
- RET
-
-TEXT runtime·sysctl(SB),NOSPLIT,$0
- MOVQ 8(SP), DI // arg 1 - name
- MOVL 16(SP), SI // arg 2 - namelen
- MOVQ 24(SP), DX // arg 3 - oldp
- MOVQ 32(SP), R10 // arg 4 - oldlenp
- MOVQ 40(SP), R8 // arg 5 - newp
- MOVQ 48(SP), R9 // arg 6 - newlen
- MOVQ $202, AX // sys___sysctl
- SYSCALL
- JCC 3(PC)
- NEGQ AX
- RET
- MOVL $0, AX
- RET
-
-TEXT runtime·osyield(SB),NOSPLIT,$-4
- MOVL $331, AX // sys_sched_yield
- SYSCALL
- RET
-
-TEXT runtime·sigprocmask(SB),NOSPLIT,$0
- MOVL $3, DI // arg 1 - how (SIG_SETMASK)
- MOVQ 8(SP), SI // arg 2 - set
- MOVQ 16(SP), DX // arg 3 - oset
- MOVL $340, AX // sys_sigprocmask
- SYSCALL
- JAE 2(PC)
- MOVL $0xf1, 0xf1 // crash
- RET
-
-// int32 runtime·kqueue(void);
-TEXT runtime·kqueue(SB),NOSPLIT,$0
- MOVQ $0, DI
- MOVQ $0, SI
- MOVQ $0, DX
- MOVL $362, AX
- SYSCALL
- JCC 2(PC)
- NEGQ AX
- RET
-
-// int32 runtime·kevent(int kq, Kevent *changelist, int nchanges, Kevent *eventlist, int nevents, Timespec *timeout);
-TEXT runtime·kevent(SB),NOSPLIT,$0
- MOVL 8(SP), DI
- MOVQ 16(SP), SI
- MOVL 24(SP), DX
- MOVQ 32(SP), R10
- MOVL 40(SP), R8
- MOVQ 48(SP), R9
- MOVL $363, AX
- SYSCALL
- JCC 2(PC)
- NEGQ AX
- RET
-
-// void runtime·closeonexec(int32 fd);
-TEXT runtime·closeonexec(SB),NOSPLIT,$0
- MOVL 8(SP), DI // fd
- MOVQ $2, SI // F_SETFD
- MOVQ $1, DX // FD_CLOEXEC
- MOVL $92, AX // fcntl
- SYSCALL
- RET