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Add support for LoongArch (ruby#7343)
* vm_dump.c: Dump machine registers on loongarch64 Linux. * coroutines: Support for native loongarch64 coroutines. --------- Co-authored-by: zangruochen <zangruochen@loongson.cn>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,73 @@ | ||
| #define TOKEN_PASTE(x,y) x##y | ||
| #define PREFIXED_SYMBOL(prefix,name) TOKEN_PASTE(prefix,name) | ||
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| .text | ||
| .align 2 | ||
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| .global PREFIXED_SYMBOL(SYMBOL_PREFIX,coroutine_transfer) | ||
| PREFIXED_SYMBOL(SYMBOL_PREFIX,coroutine_transfer): | ||
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| # Make space on the stack for caller registers | ||
| addi.d $sp, $sp, -0xa0 | ||
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| # Save caller registers | ||
| st.d $s0, $sp, 0x00 | ||
| st.d $s1, $sp, 0x08 | ||
| st.d $s2, $sp, 0x10 | ||
| st.d $s3, $sp, 0x18 | ||
| st.d $s4, $sp, 0x20 | ||
| st.d $s5, $sp, 0x28 | ||
| st.d $s6, $sp, 0x30 | ||
| st.d $s7, $sp, 0x38 | ||
| st.d $s8, $sp, 0x40 | ||
| st.d $fp, $sp, 0x48 | ||
| fst.d $fs0, $sp, 0x50 | ||
| fst.d $fs1, $sp, 0x58 | ||
| fst.d $fs2, $sp, 0x60 | ||
| fst.d $fs3, $sp, 0x68 | ||
| fst.d $fs4, $sp, 0x70 | ||
| fst.d $fs5, $sp, 0x78 | ||
| fst.d $fs6, $sp, 0x80 | ||
| fst.d $fs7, $sp, 0x88 | ||
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| # Save return address | ||
| st.d $ra, $sp, 0x90 | ||
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| # Save stack pointer to a0 (first argument) | ||
| st.d $sp, $a0, 0x00 | ||
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| # Load stack pointer from a1 (second argument) | ||
| ld.d $sp, $a1, 0x00 | ||
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| # Restore caller registers | ||
| ld.d $s0, $sp, 0x00 | ||
| ld.d $s1, $sp, 0x08 | ||
| ld.d $s2, $sp, 0x10 | ||
| ld.d $s3, $sp, 0x18 | ||
| ld.d $s4, $sp, 0x20 | ||
| ld.d $s5, $sp, 0x28 | ||
| ld.d $s6, $sp, 0x30 | ||
| ld.d $s7, $sp, 0x38 | ||
| ld.d $s8, $sp, 0x40 | ||
| ld.d $fp, $sp, 0x48 | ||
| fld.d $fs0, $sp, 0x50 | ||
| fld.d $fs1, $sp, 0x58 | ||
| fld.d $fs2, $sp, 0x60 | ||
| fld.d $fs3, $sp, 0x68 | ||
| fld.d $fs4, $sp, 0x70 | ||
| fld.d $fs5, $sp, 0x78 | ||
| fld.d $fs6, $sp, 0x80 | ||
| fld.d $fs7, $sp, 0x88 | ||
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| # Load return address | ||
| ld.d $ra, $sp, 0x90 | ||
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| # Pop stack frame | ||
| addi.d $sp, $sp, 0xa0 | ||
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| # Jump to return address | ||
| jr $ra | ||
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| #if defined(__linux__) && defined(__ELF__) | ||
| .section .note.GNU-stack,"",%progbits | ||
| #endif |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,46 @@ | ||
| #pragma once | ||
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| #include <assert.h> | ||
| #include <stddef.h> | ||
| #include <stdint.h> | ||
| #include <string.h> | ||
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| #define COROUTINE __attribute__((noreturn)) void | ||
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| enum {COROUTINE_REGISTERS = 0xa0 / 8}; | ||
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| struct coroutine_context | ||
| { | ||
| void **stack_pointer; | ||
| void *argument; | ||
| }; | ||
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| typedef COROUTINE(* coroutine_start)(struct coroutine_context *from, struct coroutine_context *self); | ||
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| static inline void coroutine_initialize_main(struct coroutine_context * context) { | ||
| context->stack_pointer = NULL; | ||
| } | ||
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| static inline void coroutine_initialize( | ||
| struct coroutine_context *context, | ||
| coroutine_start start, | ||
| void *stack, | ||
| size_t size | ||
| ) { | ||
| assert(start && stack && size >= 1024); | ||
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| // Stack grows down. Force 16-byte alignment. | ||
| char * top = (char*)stack + size; | ||
| context->stack_pointer = (void**)((uintptr_t)top & ~0xF); | ||
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| context->stack_pointer -= COROUTINE_REGISTERS; | ||
| memset(context->stack_pointer, 0, sizeof(void*) * COROUTINE_REGISTERS); | ||
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| context->stack_pointer[0x90 / 8] = (void*)start; | ||
| } | ||
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| struct coroutine_context * coroutine_transfer(struct coroutine_context * current, struct coroutine_context * target); | ||
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| static inline void coroutine_destroy(struct coroutine_context * context) | ||
| { | ||
| } |
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