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Diffstat (limited to 'src/pkg/runtime/sys_linux_386.s')
-rw-r--r--src/pkg/runtime/sys_linux_386.s477
1 files changed, 0 insertions, 477 deletions
diff --git a/src/pkg/runtime/sys_linux_386.s b/src/pkg/runtime/sys_linux_386.s
deleted file mode 100644
index b7896f178..000000000
--- a/src/pkg/runtime/sys_linux_386.s
+++ /dev/null
@@ -1,477 +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 386, Linux
-//
-
-#include "zasm_GOOS_GOARCH.h"
-#include "../../cmd/ld/textflag.h"
-
-TEXT runtime·exit(SB),NOSPLIT,$0
- MOVL $252, AX // syscall number
- MOVL 4(SP), BX
- CALL *runtime·_vdso(SB)
- INT $3 // not reached
- RET
-
-TEXT runtime·exit1(SB),NOSPLIT,$0
- MOVL $1, AX // exit - exit the current os thread
- MOVL 4(SP), BX
- CALL *runtime·_vdso(SB)
- INT $3 // not reached
- RET
-
-TEXT runtime·open(SB),NOSPLIT,$0
- MOVL $5, AX // syscall - open
- MOVL 4(SP), BX
- MOVL 8(SP), CX
- MOVL 12(SP), DX
- CALL *runtime·_vdso(SB)
- RET
-
-TEXT runtime·close(SB),NOSPLIT,$0
- MOVL $6, AX // syscall - close
- MOVL 4(SP), BX
- CALL *runtime·_vdso(SB)
- RET
-
-TEXT runtime·write(SB),NOSPLIT,$0
- MOVL $4, AX // syscall - write
- MOVL 4(SP), BX
- MOVL 8(SP), CX
- MOVL 12(SP), DX
- CALL *runtime·_vdso(SB)
- RET
-
-TEXT runtime·read(SB),NOSPLIT,$0
- MOVL $3, AX // syscall - read
- MOVL 4(SP), BX
- MOVL 8(SP), CX
- MOVL 12(SP), DX
- CALL *runtime·_vdso(SB)
- RET
-
-TEXT runtime·getrlimit(SB),NOSPLIT,$0
- MOVL $191, AX // syscall - ugetrlimit
- MOVL 4(SP), BX
- MOVL 8(SP), CX
- CALL *runtime·_vdso(SB)
- RET
-
-TEXT runtime·usleep(SB),NOSPLIT,$8
- MOVL $0, DX
- MOVL usec+0(FP), AX
- MOVL $1000000, CX
- DIVL CX
- MOVL AX, 0(SP)
- MOVL DX, 4(SP)
-
- // select(0, 0, 0, 0, &tv)
- MOVL $142, AX
- MOVL $0, BX
- MOVL $0, CX
- MOVL $0, DX
- MOVL $0, SI
- LEAL 0(SP), DI
- CALL *runtime·_vdso(SB)
- RET
-
-TEXT runtime·raise(SB),NOSPLIT,$12
- MOVL $224, AX // syscall - gettid
- CALL *runtime·_vdso(SB)
- MOVL AX, BX // arg 1 tid
- MOVL sig+0(FP), CX // arg 2 signal
- MOVL $238, AX // syscall - tkill
- CALL *runtime·_vdso(SB)
- RET
-
-TEXT runtime·setitimer(SB),NOSPLIT,$0-24
- MOVL $104, AX // syscall - setitimer
- MOVL 4(SP), BX
- MOVL 8(SP), CX
- MOVL 12(SP), DX
- CALL *runtime·_vdso(SB)
- RET
-
-TEXT runtime·mincore(SB),NOSPLIT,$0-24
- MOVL $218, AX // syscall - mincore
- MOVL 4(SP), BX
- MOVL 8(SP), CX
- MOVL 12(SP), DX
- CALL *runtime·_vdso(SB)
- RET
-
-// func now() (sec int64, nsec int32)
-TEXT time·now(SB), NOSPLIT, $32
- MOVL $265, AX // syscall - clock_gettime
- MOVL $0, BX // CLOCK_REALTIME
- LEAL 8(SP), CX
- MOVL $0, DX
- CALL *runtime·_vdso(SB)
- MOVL 8(SP), AX // sec
- MOVL 12(SP), BX // nsec
-
- // sec is in AX, nsec in BX
- MOVL AX, sec+0(FP)
- MOVL $0, sec+4(FP)
- MOVL BX, nsec+8(FP)
- RET
-
-// int64 nanotime(void) so really
-// void nanotime(int64 *nsec)
-TEXT runtime·nanotime(SB), NOSPLIT, $32
- MOVL $265, AX // syscall - clock_gettime
- MOVL $1, BX // CLOCK_MONOTONIC
- LEAL 8(SP), CX
- MOVL $0, DX
- CALL *runtime·_vdso(SB)
- MOVL 8(SP), AX // sec
- MOVL 12(SP), BX // nsec
-
- // sec is in AX, nsec in BX
- // convert to DX:AX nsec
- MOVL $1000000000, CX
- MULL CX
- ADDL BX, AX
- ADCL $0, DX
-
- MOVL ret+0(FP), DI
- MOVL AX, 0(DI)
- MOVL DX, 4(DI)
- RET
-
-TEXT runtime·rtsigprocmask(SB),NOSPLIT,$0
- MOVL $175, AX // syscall entry
- MOVL 4(SP), BX
- MOVL 8(SP), CX
- MOVL 12(SP), DX
- MOVL 16(SP), SI
- CALL *runtime·_vdso(SB)
- CMPL AX, $0xfffff001
- JLS 2(PC)
- INT $3
- RET
-
-TEXT runtime·rt_sigaction(SB),NOSPLIT,$0
- MOVL $174, AX // syscall - rt_sigaction
- MOVL 4(SP), BX
- MOVL 8(SP), CX
- MOVL 12(SP), DX
- MOVL 16(SP), SI
- CALL *runtime·_vdso(SB)
- RET
-
-TEXT runtime·sigtramp(SB),NOSPLIT,$44
- get_tls(CX)
-
- // check that m exists
- MOVL m(CX), BX
- CMPL BX, $0
- JNE 6(PC)
- MOVL sig+0(FP), BX
- MOVL BX, 0(SP)
- MOVL $runtime·badsignal(SB), AX
- CALL AX
- RET
-
- // save g
- MOVL g(CX), DI
- MOVL DI, 20(SP)
-
- // g = m->gsignal
- MOVL m(CX), BX
- MOVL m_gsignal(BX), BX
- MOVL BX, g(CX)
-
- // copy arguments for call to sighandler
- MOVL sig+0(FP), BX
- MOVL BX, 0(SP)
- MOVL info+4(FP), BX
- MOVL BX, 4(SP)
- MOVL context+8(FP), BX
- MOVL BX, 8(SP)
- MOVL DI, 12(SP)
-
- CALL runtime·sighandler(SB)
-
- // restore g
- get_tls(CX)
- MOVL 20(SP), BX
- MOVL BX, g(CX)
-
- RET
-
-TEXT runtime·sigreturn(SB),NOSPLIT,$0
- MOVL $173, AX // rt_sigreturn
- // Sigreturn expects same SP as signal handler,
- // so cannot CALL *runtime._vsdo(SB) here.
- INT $0x80
- INT $3 // not reached
- RET
-
-TEXT runtime·mmap(SB),NOSPLIT,$0
- MOVL $192, AX // mmap2
- MOVL 4(SP), BX
- MOVL 8(SP), CX
- MOVL 12(SP), DX
- MOVL 16(SP), SI
- MOVL 20(SP), DI
- MOVL 24(SP), BP
- SHRL $12, BP
- CALL *runtime·_vdso(SB)
- CMPL AX, $0xfffff001
- JLS 3(PC)
- NOTL AX
- INCL AX
- RET
-
-TEXT runtime·munmap(SB),NOSPLIT,$0
- MOVL $91, AX // munmap
- MOVL 4(SP), BX
- MOVL 8(SP), CX
- CALL *runtime·_vdso(SB)
- CMPL AX, $0xfffff001
- JLS 2(PC)
- INT $3
- RET
-
-TEXT runtime·madvise(SB),NOSPLIT,$0
- MOVL $219, AX // madvise
- MOVL 4(SP), BX
- MOVL 8(SP), CX
- MOVL 12(SP), DX
- CALL *runtime·_vdso(SB)
- // ignore failure - maybe pages are locked
- RET
-
-// int32 futex(int32 *uaddr, int32 op, int32 val,
-// struct timespec *timeout, int32 *uaddr2, int32 val2);
-TEXT runtime·futex(SB),NOSPLIT,$0
- MOVL $240, AX // futex
- MOVL 4(SP), BX
- MOVL 8(SP), CX
- MOVL 12(SP), DX
- MOVL 16(SP), SI
- MOVL 20(SP), DI
- MOVL 24(SP), BP
- CALL *runtime·_vdso(SB)
- RET
-
-// int32 clone(int32 flags, void *stack, M *mp, G *gp, void (*fn)(void));
-TEXT runtime·clone(SB),NOSPLIT,$0
- MOVL $120, AX // clone
- MOVL flags+4(SP), BX
- MOVL stack+8(SP), CX
- MOVL $0, DX // parent tid ptr
- MOVL $0, DI // child tid ptr
-
- // Copy mp, gp, fn off parent stack for use by child.
- SUBL $16, CX
- MOVL mm+12(SP), SI
- MOVL SI, 0(CX)
- MOVL gg+16(SP), SI
- MOVL SI, 4(CX)
- MOVL fn+20(SP), SI
- MOVL SI, 8(CX)
- MOVL $1234, 12(CX)
-
- // cannot use CALL *runtime·_vdso(SB) here, because
- // the stack changes during the system call (after
- // CALL *runtime·_vdso(SB), the child is still using
- // the parent's stack when executing its RET instruction).
- INT $0x80
-
- // In parent, return.
- CMPL AX, $0
- JEQ 2(PC)
- RET
-
- // Paranoia: check that SP is as we expect.
- MOVL 12(SP), BP
- CMPL BP, $1234
- JEQ 2(PC)
- INT $3
-
- // Initialize AX to Linux tid
- MOVL $224, AX
- CALL *runtime·_vdso(SB)
-
- // In child on new stack. Reload registers (paranoia).
- MOVL 0(SP), BX // m
- MOVL 4(SP), DX // g
- MOVL 8(SP), SI // fn
-
- MOVL AX, m_procid(BX) // save tid as m->procid
-
- // set up ldt 7+id to point at m->tls.
- // newosproc left the id in tls[0].
- LEAL m_tls(BX), BP
- MOVL 0(BP), DI
- ADDL $7, DI // m0 is LDT#7. count up.
- // setldt(tls#, &tls, sizeof tls)
- PUSHAL // save registers
- PUSHL $32 // sizeof tls
- PUSHL BP // &tls
- PUSHL DI // tls #
- CALL runtime·setldt(SB)
- POPL AX
- POPL AX
- POPL AX
- POPAL
-
- // Now segment is established. Initialize m, g.
- get_tls(AX)
- MOVL DX, g(AX)
- MOVL BX, m(AX)
-
- CALL runtime·stackcheck(SB) // smashes AX, CX
- MOVL 0(DX), DX // paranoia; check they are not nil
- MOVL 0(BX), BX
-
- // more paranoia; check that stack splitting code works
- PUSHAL
- CALL runtime·emptyfunc(SB)
- POPAL
-
- CALL SI // fn()
- CALL runtime·exit1(SB)
- MOVL $0x1234, 0x1005
- RET
-
-TEXT runtime·sigaltstack(SB),NOSPLIT,$-8
- MOVL $186, AX // sigaltstack
- MOVL new+4(SP), BX
- MOVL old+8(SP), CX
- CALL *runtime·_vdso(SB)
- CMPL AX, $0xfffff001
- JLS 2(PC)
- INT $3
- RET
-
-// <asm-i386/ldt.h>
-// struct user_desc {
-// unsigned int entry_number;
-// unsigned long base_addr;
-// unsigned int limit;
-// unsigned int seg_32bit:1;
-// unsigned int contents:2;
-// unsigned int read_exec_only:1;
-// unsigned int limit_in_pages:1;
-// unsigned int seg_not_present:1;
-// unsigned int useable:1;
-// };
-#define SEG_32BIT 0x01
-// contents are the 2 bits 0x02 and 0x04.
-#define CONTENTS_DATA 0x00
-#define CONTENTS_STACK 0x02
-#define CONTENTS_CODE 0x04
-#define READ_EXEC_ONLY 0x08
-#define LIMIT_IN_PAGES 0x10
-#define SEG_NOT_PRESENT 0x20
-#define USEABLE 0x40
-
-// setldt(int entry, int address, int limit)
-TEXT runtime·setldt(SB),NOSPLIT,$32
- MOVL entry+0(FP), BX // entry
- MOVL address+4(FP), CX // base address
-
- /*
- * When linking against the system libraries,
- * we use its pthread_create and let it set up %gs
- * for us. When we do that, the private storage
- * we get is not at 0(GS), 4(GS), but -8(GS), -4(GS).
- * To insulate the rest of the tool chain from this
- * ugliness, 8l rewrites 0(TLS) into -8(GS) for us.
- * To accommodate that rewrite, we translate
- * the address here and bump the limit to 0xffffffff (no limit)
- * so that -8(GS) maps to 0(address).
- * Also, the final 0(GS) (current 8(CX)) has to point
- * to itself, to mimic ELF.
- */
- ADDL $0x8, CX // address
- MOVL CX, 0(CX)
-
- // set up user_desc
- LEAL 16(SP), AX // struct user_desc
- MOVL BX, 0(AX)
- MOVL CX, 4(AX)
- MOVL $0xfffff, 8(AX)
- MOVL $(SEG_32BIT|LIMIT_IN_PAGES|USEABLE|CONTENTS_DATA), 12(AX) // flag bits
-
- // call modify_ldt
- MOVL $1, BX // func = 1 (write)
- MOVL AX, CX // user_desc
- MOVL $16, DX // sizeof(user_desc)
- MOVL $123, AX // syscall - modify_ldt
- CALL *runtime·_vdso(SB)
-
- // breakpoint on error
- CMPL AX, $0xfffff001
- JLS 2(PC)
- INT $3
-
- // compute segment selector - (entry*8+7)
- MOVL entry+0(FP), AX
- SHLL $3, AX
- ADDL $7, AX
- MOVW AX, GS
-
- RET
-
-TEXT runtime·osyield(SB),NOSPLIT,$0
- MOVL $158, AX
- CALL *runtime·_vdso(SB)
- RET
-
-TEXT runtime·sched_getaffinity(SB),NOSPLIT,$0
- MOVL $242, AX // syscall - sched_getaffinity
- MOVL 4(SP), BX
- MOVL 8(SP), CX
- MOVL 12(SP), DX
- CALL *runtime·_vdso(SB)
- RET
-
-// int32 runtime·epollcreate(int32 size);
-TEXT runtime·epollcreate(SB),NOSPLIT,$0
- MOVL $254, AX
- MOVL 4(SP), BX
- CALL *runtime·_vdso(SB)
- RET
-
-// int32 runtime·epollcreate1(int32 flags);
-TEXT runtime·epollcreate1(SB),NOSPLIT,$0
- MOVL $329, AX
- MOVL 4(SP), BX
- CALL *runtime·_vdso(SB)
- RET
-
-// int32 runtime·epollctl(int32 epfd, int32 op, int32 fd, EpollEvent *ev);
-TEXT runtime·epollctl(SB),NOSPLIT,$0
- MOVL $255, AX
- MOVL 4(SP), BX
- MOVL 8(SP), CX
- MOVL 12(SP), DX
- MOVL 16(SP), SI
- CALL *runtime·_vdso(SB)
- RET
-
-// int32 runtime·epollwait(int32 epfd, EpollEvent *ev, int32 nev, int32 timeout);
-TEXT runtime·epollwait(SB),NOSPLIT,$0
- MOVL $256, AX
- MOVL 4(SP), BX
- MOVL 8(SP), CX
- MOVL 12(SP), DX
- MOVL 16(SP), SI
- CALL *runtime·_vdso(SB)
- RET
-
-// void runtime·closeonexec(int32 fd);
-TEXT runtime·closeonexec(SB),NOSPLIT,$0
- MOVL $55, AX // fcntl
- MOVL 4(SP), BX // fd
- MOVL $2, CX // F_SETFD
- MOVL $1, DX // FD_CLOEXEC
- CALL *runtime·_vdso(SB)
- RET