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coroutines: import riscv64 assembly

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This commit is contained in:
q66 2019-07-04 01:51:17 +02:00
parent d729e06212
commit a56966d6cf
7 changed files with 403 additions and 7 deletions
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2
src/asm/README.md
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@ -1,4 +1,4 @@
*Last sync: 82293a2c03ac2571aafa181ea58a67375a13ceb9.*
*Last sync: d4608a4e8ba2e8a0bdd45613243e6c53a23d23dc.*
This directory contains assembly context switching code for different platforms,
taken from the Boost.Context library and adapted to libostd's needs. The files

6
src/asm/jump_all_gas.S
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@ -21,7 +21,7 @@
# else
# include "x86_64/jump_x86_64_sysv_elf_gas.S"
# endif
#elif defined(__ppc64__) || defined(__PPC64__)
#elif defined(__ppc64__) || defined(__PPC64__) || defined(__powerpc64__)
# if defined(__APPLE__)
# include "ppc64/jump_ppc64_sysv_macho_gas.S"
# elif defined(_AIX)
@ -29,7 +29,7 @@
# else
# include "ppc64/jump_ppc64_sysv_elf_gas.S"
# endif
#elif defined(__ppc__) || defined(__PPC__)
#elif defined(__ppc__) || defined(__PPC__) || defined(__powerpc__)
# if defined(__APPLE__)
# include "ppc32/jump_ppc32_sysv_macho_gas.S"
# elif defined(_AIX)
@ -51,6 +51,8 @@
# endif
#elif defined(__mips__)
# include "mips32/jump_mips32_o32_elf_gas.S"
#elif defined(__riscv) && (__riscv_xlen == 64)
# include "riscv64/jump_riscv64_sysv_elf_gas.S"
#else
#error "Unsupported architecture"
#endif

6
src/asm/make_all_gas.S
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@ -21,7 +21,7 @@
# else
# include "x86_64/make_x86_64_sysv_elf_gas.S"
# endif
#elif defined(__ppc64__) || defined(__PPC64__)
#elif defined(__ppc64__) || defined(__PPC64__) || defined(__powerpc64__)
# if defined(__APPLE__)
# include "ppc64/make_ppc64_sysv_macho_gas.S"
# elif defined(_AIX)
@ -29,7 +29,7 @@
# else
# include "ppc64/make_ppc64_sysv_elf_gas.S"
# endif
#elif defined(__ppc__) || defined(__PPC__)
#elif defined(__ppc__) || defined(__PPC__) || defined(__powerpc__)
# if defined(__APPLE__)
# include "ppc32/make_ppc32_sysv_macho_gas.S"
# elif defined(_AIX)
@ -51,6 +51,8 @@
# endif
#elif defined(__mips__)
# include "mips32/make_mips32_o32_elf_gas.S"
#elif defined(__riscv) && (__riscv_xlen == 64)
# include "riscv64/make_riscv64_sysv_elf_gas.S"
#else
#error "Unsupported architecture"
#endif

6
src/asm/ontop_all_gas.S
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@ -21,7 +21,7 @@
# else
# include "x86_64/ontop_x86_64_sysv_elf_gas.S"
# endif
#elif defined(__ppc64__) || defined(__PPC64__)
#elif defined(__ppc64__) || defined(__PPC64__) || defined(__powerpc64__)
# if defined(__APPLE__)
# include "ppc64/ontop_ppc64_sysv_macho_gas.S"
# elif defined(_AIX)
@ -29,7 +29,7 @@
# else
# include "ppc64/ontop_ppc64_sysv_elf_gas.S"
# endif
#elif defined(__ppc__) || defined(__PPC__)
#elif defined(__ppc__) || defined(__PPC__) || defined(__powerpc__)
# if defined(__APPLE__)
# include "ppc32/ontop_ppc32_sysv_macho_gas.S"
# elif defined(_AIX)
@ -51,6 +51,8 @@
# endif
#elif defined(__mips__)
# include "mips32/ontop_mips32_o32_elf_gas.S"
#elif defined(__riscv) && (__riscv_xlen == 64)
# include "riscv64/ontop_riscv64_sysv_elf_gas.S"
#else
#error "Unsupported architecture"
#endif

150
src/asm/riscv64/jump_riscv64_sysv_elf_gas.S Normal file
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/*
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 "jump_riscv64_sysv_elf_gas.S"
.text
.align 1
.global ostd_jump_fcontext
.type ostd_jump_fcontext, %function
ostd_jump_fcontext:
# prepare stack for GP + FPU
addi sp, sp, -0xd0
# save fs0 - fs11
fsd fs0, 0x00(sp)
fsd fs1, 0x08(sp)
fsd fs2, 0x10(sp)
fsd fs3, 0x18(sp)
fsd fs4, 0x20(sp)
fsd fs5, 0x28(sp)
fsd fs6, 0x30(sp)
fsd fs7, 0x38(sp)
fsd fs8, 0x40(sp)
fsd fs9, 0x48(sp)
fsd fs10, 0x50(sp)
fsd fs11, 0x58(sp)
# save s0-s11, ra
sd s0, 0x60(sp)
sd s1, 0x68(sp)
sd s2, 0x70(sp)
sd s3, 0x78(sp)
sd s4, 0x80(sp)
sd s5, 0x88(sp)
sd s6, 0x90(sp)
sd s7, 0x98(sp)
sd s8, 0xa0(sp)
sd s9, 0xa8(sp)
sd s10, 0xb0(sp)
sd s11, 0xb8(sp)
sd ra, 0xc0(sp)
# save RA as PC
sd ra, 0xc8(sp)
# store SP (pointing to context-data) in A2
mv a2, sp
# restore SP (pointing to context-data) from A0
mv sp, a0
# load fs0 - fs11
fld fs0, 0x00(sp)
fld fs1, 0x08(sp)
fld fs2, 0x10(sp)
fld fs3, 0x18(sp)
fld fs4, 0x20(sp)
fld fs5, 0x28(sp)
fld fs6, 0x30(sp)
fld fs7, 0x38(sp)
fld fs8, 0x40(sp)
fld fs9, 0x48(sp)
fld fs10, 0x50(sp)
fld fs11, 0x58(sp)
# load s0-s11,ra
ld s0, 0x60(sp)
ld s1, 0x68(sp)
ld s2, 0x70(sp)
ld s3, 0x78(sp)
ld s4, 0x80(sp)
ld s5, 0x88(sp)
ld s6, 0x90(sp)
ld s7, 0x98(sp)
ld s8, 0xa0(sp)
ld s9, 0xa8(sp)
ld s10, 0xb0(sp)
ld s11, 0xb8(sp)
ld ra, 0xc0(sp)
# return transfer_t from jump
# pass transfer_t as first arg in context function
# a0 == FCTX, a1 == DATA
mv a0, a2
# load pc
ld a2, 0xc8(sp)
# restore stack from GP + FPU
addi sp, sp, 0xd0
jr a2
.size ostd_jump_fcontext,.-ostd_jump_fcontext
# Mark that we don't need executable stack.
.section .note.GNU-stack,"",%progbits

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src/asm/riscv64/make_riscv64_sysv_elf_gas.S Normal file
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/*
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 ostd_make_fcontext
.type ostd_make_fcontext, %function
ostd_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 ostd_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)
la 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
.size ostd_make_fcontext,.-ostd_make_fcontext
# Mark that we don't need executable stack.
.section .note.GNU-stack,"",%progbits

149
src/asm/riscv64/ontop_riscv64_sysv_elf_gas.S Normal file
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/*
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 "ontop_riscv64_sysv_elf_gas.S"
.text
.align 1
.global ostd_ontop_fcontext
.type ostd_ontop_fcontext, %function
ostd_ontop_fcontext:
# prepare stack for GP + FPU
addi sp, sp, -0xd0
# save fs0 - fs11
fsd fs0, 0x00(sp)
fsd fs1, 0x08(sp)
fsd fs2, 0x10(sp)
fsd fs3, 0x18(sp)
fsd fs4, 0x20(sp)
fsd fs5, 0x28(sp)
fsd fs6, 0x30(sp)
fsd fs7, 0x38(sp)
fsd fs8, 0x40(sp)
fsd fs9, 0x48(sp)
fsd fs10, 0x50(sp)
fsd fs11, 0x58(sp)
# save s0-s11, ra
sd s0, 0x60(sp)
sd s1, 0x68(sp)
sd s2, 0x70(sp)
sd s3, 0x78(sp)
sd s4, 0x80(sp)
sd s5, 0x88(sp)
sd s6, 0x90(sp)
sd s7, 0x98(sp)
sd s8, 0xa0(sp)
sd s9, 0xa8(sp)
sd s10, 0xb0(sp)
sd s11, 0xb8(sp)
sd ra, 0xc0(sp)
# save RA as PC
sd ra, 0xc8(sp)
# store SP (pointing to context-data) in A3
mv a3, sp
# restore SP (pointing to context-data) from A0
mv sp, a0
# load fs0 - fs11
fld fs0, 0x00(sp)
fld fs1, 0x08(sp)
fld fs2, 0x10(sp)
fld fs3, 0x18(sp)
fld fs4, 0x20(sp)
fld fs5, 0x28(sp)
fld fs6, 0x30(sp)
fld fs7, 0x38(sp)
fld fs8, 0x40(sp)
fld fs9, 0x48(sp)
fld fs10, 0x50(sp)
fld fs11, 0x58(sp)
# load s0-s11,ra
ld s0, 0x60(sp)
ld s1, 0x68(sp)
ld s2, 0x70(sp)
ld s3, 0x78(sp)
ld s4, 0x80(sp)
ld s5, 0x88(sp)
ld s6, 0x90(sp)
ld s7, 0x98(sp)
ld s8, 0xa0(sp)
ld s9, 0xa8(sp)
ld s10, 0xb0(sp)
ld s11, 0xb8(sp)
ld ra, 0xc0(sp)
# return transfer_t from jump
# pass transfer_t as first arg in context function
# a0 == FCTX, a1 == DATA
mv a0, a3
# skip pc
# restore stack from GP + FPU
addi sp, sp, 0xd0
# jump to ontop-function
jr a2
.size ostd_ontop_fcontext,.-ostd_ontop_fcontext
# Mark that we don't need executable stack.
.section .note.GNU-stack,"",%progbits