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Diffstat (limited to 'src/pkg/runtime/linux/arm/sys.s')
| -rw-r--r-- | src/pkg/runtime/linux/arm/sys.s | 289 |
1 files changed, 0 insertions, 289 deletions
diff --git a/src/pkg/runtime/linux/arm/sys.s b/src/pkg/runtime/linux/arm/sys.s deleted file mode 100644 index ab5349822..000000000 --- a/src/pkg/runtime/linux/arm/sys.s +++ /dev/null @@ -1,289 +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 arm, Linux -// - -#include "arm/asm.h" - -// OABI -//#define SYS_BASE 0x00900000 - -// EABI -#define SYS_BASE 0x0 - -#define SYS_exit (SYS_BASE + 1) -#define SYS_write (SYS_BASE + 4) -#define SYS_gettimeofday (SYS_BASE + 78) -#define SYS_clone (SYS_BASE + 120) -#define SYS_rt_sigreturn (SYS_BASE + 173) -#define SYS_rt_sigaction (SYS_BASE + 174) -#define SYS_sigaltstack (SYS_BASE + 186) -#define SYS_mmap2 (SYS_BASE + 192) -#define SYS_futex (SYS_BASE + 240) -#define SYS_exit_group (SYS_BASE + 248) -#define SYS_munmap (SYS_BASE + 91) -#define SYS_setitimer (SYS_BASE + 104) -#define SYS_mincore (SYS_BASE + 219) -#define SYS_gettid (SYS_BASE + 224) -#define SYS_tkill (SYS_BASE + 238) - -#define ARM_BASE (SYS_BASE + 0x0f0000) -#define SYS_ARM_cacheflush (ARM_BASE + 2) - -TEXT runtime·write(SB),7,$0 - MOVW 0(FP), R0 - MOVW 4(FP), R1 - MOVW 8(FP), R2 - MOVW $SYS_write, R7 - SWI $0 - RET - -TEXT runtime·exit(SB),7,$-4 - MOVW 0(FP), R0 - MOVW $SYS_exit_group, R7 - SWI $0 - MOVW $1234, R0 - MOVW $1002, R1 - MOVW R0, (R1) // fail hard - -TEXT runtime·exit1(SB),7,$-4 - MOVW 0(FP), R0 - MOVW $SYS_exit, R7 - SWI $0 - MOVW $1234, R0 - MOVW $1003, R1 - MOVW R0, (R1) // fail hard - -TEXT runtime·raisesigpipe(SB),7,$-4 - MOVW $SYS_gettid, R7 - SWI $0 - // arg 1 tid already in R0 from gettid - MOVW $13, R1 // arg 2 SIGPIPE - MOVW $SYS_tkill, R7 - SWI $0 - RET - -TEXT runtime·mmap(SB),7,$0 - MOVW 0(FP), R0 - MOVW 4(FP), R1 - MOVW 8(FP), R2 - MOVW 12(FP), R3 - MOVW 16(FP), R4 - MOVW 20(FP), R5 - MOVW $SYS_mmap2, R7 - SWI $0 - RET - -TEXT runtime·munmap(SB),7,$0 - MOVW 0(FP), R0 - MOVW 4(FP), R1 - MOVW $SYS_munmap, R7 - SWI $0 - RET - -TEXT runtime·setitimer(SB),7,$0 - MOVW 0(FP), R0 - MOVW 4(FP), R1 - MOVW 8(FP), R2 - MOVW $SYS_setitimer, R7 - SWI $0 - RET - -TEXT runtime·mincore(SB),7,$0 - MOVW 0(FP), R0 - MOVW 4(FP), R1 - MOVW 8(FP), R2 - MOVW $SYS_mincore, R7 - SWI $0 - RET - -TEXT runtime·gettime(SB),7,$32 - /* dummy version - return 0,0 */ - MOVW $0, R1 - MOVW 0(FP), R0 - MOVW R1, 0(R0) - MOVW R1, 4(R0) - MOVW 4(FP), R0 - MOVW R1, 0(R0) - -/* - attempt at real version - seg faults - - MOVW $8(SP), R0 - MOVW $0, R1 - MOVW $SYS_gettimeofday, R7 - SWI $0 - - MOVW 0(FP), R0 // sec - MOVW 8(SP), R1 - MOVW R1, 0(R0) - - MOVW 4(FP), R0 // usec - MOVW 12(SP), R1 - MOVW R1, 0(R0) -*/ - RET - -// int32 futex(int32 *uaddr, int32 op, int32 val, -// struct timespec *timeout, int32 *uaddr2, int32 val2); -TEXT runtime·futex(SB),7,$0 - MOVW 4(SP), R0 - MOVW 8(SP), R1 - MOVW 12(SP), R2 - MOVW 16(SP), R3 - MOVW 20(SP), R4 - MOVW 24(SP), R5 - MOVW $SYS_futex, R7 - SWI $0 - RET - - -// int32 clone(int32 flags, void *stack, M *m, G *g, void (*fn)(void)); -TEXT runtime·clone(SB),7,$0 - MOVW flags+0(FP), R0 - MOVW stack+4(FP), R1 - MOVW $0, R2 // parent tid ptr - MOVW $0, R3 // tls_val - MOVW $0, R4 // child tid ptr - MOVW $0, R5 - - // Copy m, g, fn off parent stack for use by child. - // TODO(kaib): figure out which registers are clobbered by clone and avoid stack copying - MOVW $-16(R1), R1 - MOVW mm+8(FP), R6 - MOVW R6, 0(R1) - MOVW gg+12(FP), R6 - MOVW R6, 4(R1) - MOVW fn+16(FP), R6 - MOVW R6, 8(R1) - MOVW $1234, R6 - MOVW R6, 12(R1) - - MOVW $SYS_clone, R7 - SWI $0 - - // In parent, return. - CMP $0, R0 - BEQ 2(PC) - RET - - // Paranoia: check that SP is as we expect. Use R13 to avoid linker 'fixup' - MOVW 12(R13), R0 - MOVW $1234, R1 - CMP R0, R1 - BEQ 2(PC) - BL runtime·abort(SB) - - MOVW 0(R13), m - MOVW 4(R13), g - - // paranoia; check they are not nil - MOVW 0(m), R0 - MOVW 0(g), R0 - - BL runtime·emptyfunc(SB) // fault if stack check is wrong - - // Initialize m->procid to Linux tid - MOVW $SYS_gettid, R7 - SWI $0 - MOVW R0, m_procid(m) - - // Call fn - MOVW 8(R13), R0 - MOVW $16(R13), R13 - BL (R0) - - MOVW $0, R0 - MOVW R0, 4(R13) - BL runtime·exit1(SB) - - // It shouldn't return - MOVW $1234, R0 - MOVW $1005, R1 - MOVW R0, (R1) - - -TEXT runtime·cacheflush(SB),7,$0 - MOVW 0(FP), R0 - MOVW 4(FP), R1 - MOVW $0, R2 - MOVW $SYS_ARM_cacheflush, R7 - SWI $0 - RET - -TEXT runtime·sigaltstack(SB),7,$0 - MOVW 0(FP), R0 - MOVW 4(FP), R1 - MOVW $SYS_sigaltstack, R7 - SWI $0 - RET - -TEXT runtime·sigignore(SB),7,$0 - RET - -TEXT runtime·sigtramp(SB),7,$24 - // save g - MOVW g, R3 - MOVW g, 20(R13) - - // g = m->gsignal - MOVW m_gsignal(m), g - - // copy arguments for call to sighandler - MOVW R0, 4(R13) - MOVW R1, 8(R13) - MOVW R2, 12(R13) - MOVW R3, 16(R13) - - BL runtime·sighandler(SB) - - // restore g - MOVW 20(R13), g - - RET - -TEXT runtime·rt_sigaction(SB),7,$0 - MOVW 0(FP), R0 - MOVW 4(FP), R1 - MOVW 8(FP), R2 - MOVW 12(FP), R3 - MOVW $SYS_rt_sigaction, R7 - SWI $0 - RET - -TEXT runtime·sigreturn(SB),7,$0 - MOVW $SYS_rt_sigreturn, R7 - SWI $0 - RET - -// Use kernel version instead of native armcas in ../../arm.s. -// See ../../../sync/atomic/asm_linux_arm.s for details. -TEXT cas<>(SB),7,$0 - MOVW $0xffff0fc0, PC - -TEXT runtime·cas(SB),7,$0 - MOVW valptr+0(FP), R2 - MOVW old+4(FP), R0 -casagain: - MOVW new+8(FP), R1 - BL cas<>(SB) - BCC cascheck - MOVW $1, R0 - RET -cascheck: - // Kernel lies; double-check. - MOVW valptr+0(FP), R2 - MOVW old+4(FP), R0 - MOVW 0(R2), R3 - CMP R0, R3 - BEQ casagain - MOVW $0, R0 - RET - - -TEXT runtime·casp(SB),7,$0 - B runtime·cas(SB) - |