mirror of
https://github.com/php/php-src.git
synced 2024-11-23 18:04:36 +08:00
70b02d75f2
We add riscv64 assembly files from Boost, needed for fibers support, and hook up riscv64 fibers support during configure. Closes GH-7879.
92 lines
4.0 KiB
ArmAsm
92 lines
4.0 KiB
ArmAsm
/*
|
|
Distributed under the Boost Software License, Version 1.0.
|
|
(See accompanying file LICENSE_1_0.txt or copy at
|
|
http://www.boost.org/LICENSE_1_0.txt)
|
|
*/
|
|
/*******************************************************
|
|
* *
|
|
* ------------------------------------------------- *
|
|
* | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | *
|
|
* ------------------------------------------------- *
|
|
* | 0x0 | 0x4 | 0x8 | 0xc | 0x10| 0x14| 0x18| 0x1c| *
|
|
* ------------------------------------------------- *
|
|
* | fs0 | fs1 | fs2 | fs3 | *
|
|
* ------------------------------------------------- *
|
|
* ------------------------------------------------- *
|
|
* | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | *
|
|
* ------------------------------------------------- *
|
|
* | 0x20| 0x24| 0x28| 0x2c| 0x30| 0x34| 0x38| 0x3c| *
|
|
* ------------------------------------------------- *
|
|
* | fs4 | fs5 | fs6 | fs7 | *
|
|
* ------------------------------------------------- *
|
|
* ------------------------------------------------- *
|
|
* | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | *
|
|
* ------------------------------------------------- *
|
|
* | 0x40| 0x44| 0x48| 0x4c| 0x50| 0x54| 0x58| 0x5c| *
|
|
* ------------------------------------------------- *
|
|
* | fs8 | fs9 | fs10 | fs11 | *
|
|
* ------------------------------------------------- *
|
|
* ------------------------------------------------- *
|
|
* | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | *
|
|
* ------------------------------------------------- *
|
|
* | 0x60| 0x64| 0x68| 0x6c| 0x70| 0x74| 0x78| 0x7c| *
|
|
* ------------------------------------------------- *
|
|
* | s0 | s1 | s2 | s3 | *
|
|
* ------------------------------------------------- *
|
|
* ------------------------------------------------- *
|
|
* | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | *
|
|
* ------------------------------------------------- *
|
|
* | 0x80| 0x84| 0x88| 0x8c| 0x90| 0x94| 0x98| 0x9c| *
|
|
* ------------------------------------------------- *
|
|
* | s4 | s5 | s6 | s7 | *
|
|
* ------------------------------------------------- *
|
|
* ------------------------------------------------- *
|
|
* | 40 | 41 | 42 | 43 | 44 | 45 | 46 | 47 | *
|
|
* ------------------------------------------------- *
|
|
* | 0xa0| 0xa4| 0xa8| 0xac| 0xb0| 0xb4| 0xb8| 0xbc| *
|
|
* ------------------------------------------------- *
|
|
* | s8 | s9 | s10 | s11 | *
|
|
* ------------------------------------------------- *
|
|
* ------------------------------------------------- *
|
|
* | 48 | 49 | 50 | 51 | | | | | *
|
|
* ------------------------------------------------- *
|
|
* | 0xc0| 0xc4| 0xc8| 0xcc| | | | | *
|
|
* ------------------------------------------------- *
|
|
* | ra | pc | | | *
|
|
* ------------------------------------------------- *
|
|
* *
|
|
*******************************************************/
|
|
|
|
.file "make_riscv64_sysv_elf_gas.S"
|
|
.text
|
|
.align 1
|
|
.global make_fcontext
|
|
.type make_fcontext, %function
|
|
make_fcontext:
|
|
# shift address in a0 (allocated stack) to lower 16 byte boundary
|
|
andi a0, a0, ~0xF
|
|
|
|
# reserve space for context-data on context-stack
|
|
addi a0, a0, -0xd0
|
|
|
|
# third arg of make_fcontext() == address of context-function
|
|
# store address as a PC to jump in
|
|
sd a2, 0xc8(a0)
|
|
|
|
# save address of finish as return-address for context-function
|
|
# will be entered after context-function returns (RA register)
|
|
lla a4, finish
|
|
sd a4, 0xc0(a0)
|
|
|
|
ret // return pointer to context-data (a0)
|
|
|
|
finish:
|
|
# exit code is zero
|
|
li a0, 0
|
|
# exit application
|
|
tail _exit@plt
|
|
|
|
.size make_fcontext,.-make_fcontext
|
|
# Mark that we don't need executable stack.
|
|
.section .note.GNU-stack,"",%progbits
|