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| author | Elias Naur <elias.naur@gmail.com> | 2018-05-01 10:48:19 +0200 |
|---|---|---|
| committer | Elias Naur <elias.naur@gmail.com> | 2018-05-21 20:35:00 +0000 |
| commit | c8d07295c55863c0246c2db3181eada3c9f4d63b (patch) | |
| tree | dea8a4df477607d4fdaddb553df673f68e10cc55 /src/runtime/asm_arm64.s | |
| parent | 467e15accc95d4e080a8088eaff0aaa28f572c7e (diff) | |
| download | go-c8d07295c55863c0246c2db3181eada3c9f4d63b.tar.gz go-c8d07295c55863c0246c2db3181eada3c9f4d63b.zip | |
cmd/link,runtime: move syscalls to libc on iOS
This CL is the darwin/arm and darwin/arm64 equivalent to CL 108679,
110215, 110437, 110438, 111258, 110655.
Updates #17490
Change-Id: Ia95b27b38f9c3535012c566f17a44b4ed26b9db6
Reviewed-on: https://go-review.googlesource.com/111015
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
Diffstat (limited to 'src/runtime/asm_arm64.s')
| -rw-r--r-- | src/runtime/asm_arm64.s | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/src/runtime/asm_arm64.s b/src/runtime/asm_arm64.s index 2319b82255..d1b90b056c 100644 --- a/src/runtime/asm_arm64.s +++ b/src/runtime/asm_arm64.s @@ -869,9 +869,12 @@ TEXT ·asmcgocall(SB),NOSPLIT,$0-20 // We get called to create new OS threads too, and those // come in on the m->g0 stack already. MOVD g_m(g), R8 + MOVD m_gsignal(R8), R3 + CMP R3, g + BEQ noswitch MOVD m_g0(R8), R3 CMP R3, g - BEQ g0 + BEQ noswitch MOVD R0, R9 // gosave<> and save_g might clobber R0 BL gosave<>(SB) MOVD R3, g @@ -881,11 +884,12 @@ TEXT ·asmcgocall(SB),NOSPLIT,$0-20 MOVD R9, R0 // Now on a scheduling stack (a pthread-created stack). -g0: +noswitch: // Save room for two of our pointers /*, plus 32 bytes of callee // save area that lives on the caller stack. */ MOVD RSP, R13 SUB $16, R13 + BIC $0xf, R13 // alignment for gcc ABI MOVD R13, RSP MOVD R4, 0(RSP) // save old g on stack MOVD (g_stack+stack_hi)(R4), R4 |