4e1847781b
The most important change in this release is the removal of the poll_fd() system call; CloudABI's equivalent of kevent(). Though I think that kqueue is a lot saner than many of its alternatives, our experience is that emulating this system call on other systems accurately isn't easy. It has become a complex API, even though I'm not convinced this complexity is needed. This is why we've decided to take a different approach, by looking one layer up. We're currently adding an event loop to CloudABI's C library that is API compatible with libuv (except when incompatible with Capsicum). Initially, this event loop will be built on top of plain inefficient poll() calls. Only after this is finished, we'll work our way backwards and design a new set of system calls to optimize it. Interesting challenges will include integrating asynchronous I/O into such a system call API. libuv currently doesn't aio(4) on Linux/BSD, due to it being unreliable and having undesired semantics. Obtained from: https://github.com/NuxiNL/cloudabi
432 lines
7.3 KiB
ArmAsm
432 lines
7.3 KiB
ArmAsm
// Copyright (c) 2016 Nuxi (https://nuxi.nl/) and contributors.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions
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// are met:
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// 1. Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// 2. Redistributions in binary form must reproduce the above copyright
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// notice, this list of conditions and the following disclaimer in the
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// documentation and/or other materials provided with the distribution.
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//
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// THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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// ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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// SUCH DAMAGE.
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//
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// This file is automatically generated. Do not edit.
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//
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// Source: https://github.com/NuxiNL/cloudabi
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#define ENTRY(name) \
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.text; \
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.p2align 2; \
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.global name; \
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.type name, @function; \
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name:
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#define END(name) .size name, . - name
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ENTRY(cloudabi_sys_clock_res_get)
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str x1, [sp, #-8]
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mov w8, #0
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svc #0
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ldr x2, [sp, #-8]
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b.cs 1f
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str x0, [x2]
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mov w0, wzr
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1:
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ret
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END(cloudabi_sys_clock_res_get)
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ENTRY(cloudabi_sys_clock_time_get)
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str x2, [sp, #-8]
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mov w8, #1
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svc #0
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ldr x2, [sp, #-8]
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b.cs 1f
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str x0, [x2]
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mov w0, wzr
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1:
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ret
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END(cloudabi_sys_clock_time_get)
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ENTRY(cloudabi_sys_condvar_signal)
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mov w8, #2
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svc #0
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ret
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END(cloudabi_sys_condvar_signal)
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ENTRY(cloudabi_sys_fd_close)
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mov w8, #3
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svc #0
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ret
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END(cloudabi_sys_fd_close)
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ENTRY(cloudabi_sys_fd_create1)
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str x1, [sp, #-8]
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mov w8, #4
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svc #0
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ldr x2, [sp, #-8]
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b.cs 1f
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str w0, [x2]
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mov w0, wzr
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1:
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ret
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END(cloudabi_sys_fd_create1)
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ENTRY(cloudabi_sys_fd_create2)
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stp x1, x2, [sp, #-16]
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mov w8, #5
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svc #0
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ldp x2, x3, [sp, #-16]
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b.cs 1f
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str w0, [x2]
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str w1, [x3]
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mov w0, wzr
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1:
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ret
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END(cloudabi_sys_fd_create2)
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ENTRY(cloudabi_sys_fd_datasync)
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mov w8, #6
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svc #0
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ret
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END(cloudabi_sys_fd_datasync)
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ENTRY(cloudabi_sys_fd_dup)
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str x1, [sp, #-8]
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mov w8, #7
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svc #0
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ldr x2, [sp, #-8]
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b.cs 1f
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str w0, [x2]
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mov w0, wzr
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1:
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ret
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END(cloudabi_sys_fd_dup)
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ENTRY(cloudabi_sys_fd_pread)
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str x4, [sp, #-8]
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mov w8, #8
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svc #0
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ldr x2, [sp, #-8]
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b.cs 1f
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str x0, [x2]
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mov w0, wzr
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1:
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ret
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END(cloudabi_sys_fd_pread)
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ENTRY(cloudabi_sys_fd_pwrite)
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str x4, [sp, #-8]
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mov w8, #9
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svc #0
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ldr x2, [sp, #-8]
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b.cs 1f
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str x0, [x2]
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mov w0, wzr
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1:
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ret
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END(cloudabi_sys_fd_pwrite)
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ENTRY(cloudabi_sys_fd_read)
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str x3, [sp, #-8]
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mov w8, #10
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svc #0
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ldr x2, [sp, #-8]
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b.cs 1f
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str x0, [x2]
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mov w0, wzr
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1:
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ret
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END(cloudabi_sys_fd_read)
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ENTRY(cloudabi_sys_fd_replace)
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mov w8, #11
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svc #0
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ret
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END(cloudabi_sys_fd_replace)
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ENTRY(cloudabi_sys_fd_seek)
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str x3, [sp, #-8]
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mov w8, #12
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svc #0
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ldr x2, [sp, #-8]
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b.cs 1f
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str x0, [x2]
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mov w0, wzr
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1:
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ret
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END(cloudabi_sys_fd_seek)
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ENTRY(cloudabi_sys_fd_stat_get)
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mov w8, #13
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svc #0
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ret
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END(cloudabi_sys_fd_stat_get)
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ENTRY(cloudabi_sys_fd_stat_put)
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mov w8, #14
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svc #0
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ret
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END(cloudabi_sys_fd_stat_put)
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ENTRY(cloudabi_sys_fd_sync)
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mov w8, #15
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svc #0
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ret
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END(cloudabi_sys_fd_sync)
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ENTRY(cloudabi_sys_fd_write)
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str x3, [sp, #-8]
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mov w8, #16
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svc #0
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ldr x2, [sp, #-8]
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b.cs 1f
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str x0, [x2]
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mov w0, wzr
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1:
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ret
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END(cloudabi_sys_fd_write)
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ENTRY(cloudabi_sys_file_advise)
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mov w8, #17
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svc #0
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ret
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END(cloudabi_sys_file_advise)
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ENTRY(cloudabi_sys_file_allocate)
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mov w8, #18
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svc #0
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ret
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END(cloudabi_sys_file_allocate)
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ENTRY(cloudabi_sys_file_create)
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mov w8, #19
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svc #0
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ret
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END(cloudabi_sys_file_create)
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ENTRY(cloudabi_sys_file_link)
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mov w8, #20
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svc #0
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ret
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END(cloudabi_sys_file_link)
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ENTRY(cloudabi_sys_file_open)
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str x5, [sp, #-8]
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mov w8, #21
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svc #0
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ldr x2, [sp, #-8]
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b.cs 1f
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str w0, [x2]
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mov w0, wzr
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1:
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ret
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END(cloudabi_sys_file_open)
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ENTRY(cloudabi_sys_file_readdir)
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str x4, [sp, #-8]
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mov w8, #22
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svc #0
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ldr x2, [sp, #-8]
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b.cs 1f
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str x0, [x2]
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mov w0, wzr
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1:
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ret
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END(cloudabi_sys_file_readdir)
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ENTRY(cloudabi_sys_file_readlink)
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str x5, [sp, #-8]
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mov w8, #23
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svc #0
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ldr x2, [sp, #-8]
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b.cs 1f
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str x0, [x2]
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mov w0, wzr
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1:
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ret
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END(cloudabi_sys_file_readlink)
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ENTRY(cloudabi_sys_file_rename)
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mov w8, #24
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svc #0
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ret
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END(cloudabi_sys_file_rename)
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ENTRY(cloudabi_sys_file_stat_fget)
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mov w8, #25
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svc #0
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ret
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END(cloudabi_sys_file_stat_fget)
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ENTRY(cloudabi_sys_file_stat_fput)
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mov w8, #26
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svc #0
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ret
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END(cloudabi_sys_file_stat_fput)
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ENTRY(cloudabi_sys_file_stat_get)
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mov w8, #27
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svc #0
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ret
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END(cloudabi_sys_file_stat_get)
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ENTRY(cloudabi_sys_file_stat_put)
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mov w8, #28
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svc #0
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ret
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END(cloudabi_sys_file_stat_put)
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ENTRY(cloudabi_sys_file_symlink)
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mov w8, #29
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svc #0
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ret
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END(cloudabi_sys_file_symlink)
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ENTRY(cloudabi_sys_file_unlink)
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mov w8, #30
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svc #0
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ret
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END(cloudabi_sys_file_unlink)
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ENTRY(cloudabi_sys_lock_unlock)
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mov w8, #31
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svc #0
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ret
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END(cloudabi_sys_lock_unlock)
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ENTRY(cloudabi_sys_mem_advise)
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mov w8, #32
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svc #0
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ret
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END(cloudabi_sys_mem_advise)
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ENTRY(cloudabi_sys_mem_map)
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str x6, [sp, #-8]
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mov w8, #33
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svc #0
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ldr x2, [sp, #-8]
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b.cs 1f
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str x0, [x2]
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mov w0, wzr
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1:
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ret
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END(cloudabi_sys_mem_map)
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ENTRY(cloudabi_sys_mem_protect)
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mov w8, #34
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svc #0
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ret
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END(cloudabi_sys_mem_protect)
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ENTRY(cloudabi_sys_mem_sync)
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mov w8, #35
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svc #0
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ret
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END(cloudabi_sys_mem_sync)
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ENTRY(cloudabi_sys_mem_unmap)
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mov w8, #36
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svc #0
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ret
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END(cloudabi_sys_mem_unmap)
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ENTRY(cloudabi_sys_poll)
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str x3, [sp, #-8]
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mov w8, #37
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svc #0
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ldr x2, [sp, #-8]
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b.cs 1f
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str x0, [x2]
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mov w0, wzr
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1:
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ret
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END(cloudabi_sys_poll)
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ENTRY(cloudabi_sys_proc_exec)
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mov w8, #38
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svc #0
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ret
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END(cloudabi_sys_proc_exec)
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ENTRY(cloudabi_sys_proc_exit)
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mov w8, #39
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svc #0
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END(cloudabi_sys_proc_exit)
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ENTRY(cloudabi_sys_proc_fork)
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stp x0, x1, [sp, #-16]
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mov w8, #40
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svc #0
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ldp x2, x3, [sp, #-16]
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b.cs 1f
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str w0, [x2]
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str w1, [x3]
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mov w0, wzr
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1:
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ret
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END(cloudabi_sys_proc_fork)
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ENTRY(cloudabi_sys_proc_raise)
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mov w8, #41
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svc #0
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ret
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END(cloudabi_sys_proc_raise)
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ENTRY(cloudabi_sys_random_get)
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mov w8, #42
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svc #0
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ret
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END(cloudabi_sys_random_get)
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ENTRY(cloudabi_sys_sock_recv)
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mov w8, #43
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svc #0
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ret
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END(cloudabi_sys_sock_recv)
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ENTRY(cloudabi_sys_sock_send)
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mov w8, #44
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svc #0
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ret
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END(cloudabi_sys_sock_send)
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ENTRY(cloudabi_sys_sock_shutdown)
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mov w8, #45
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svc #0
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ret
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END(cloudabi_sys_sock_shutdown)
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ENTRY(cloudabi_sys_thread_create)
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str x1, [sp, #-8]
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mov w8, #46
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svc #0
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ldr x2, [sp, #-8]
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b.cs 1f
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str w0, [x2]
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mov w0, wzr
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1:
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ret
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END(cloudabi_sys_thread_create)
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ENTRY(cloudabi_sys_thread_exit)
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mov w8, #47
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svc #0
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END(cloudabi_sys_thread_exit)
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ENTRY(cloudabi_sys_thread_yield)
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mov w8, #48
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svc #0
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ret
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END(cloudabi_sys_thread_yield)
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