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configure.ac: setup build tools and register objects main.c: wrap main with rb_wasm_rt_start to handle asyncify unwinds tool/m4/ruby_wasm_tools.m4: setup default command based on WASI_SDK_PATH environment variable. checks wasm-opt which is used for asyncify. tool/wasm-clangw wasm/wasm-opt: a clang wrapper which replaces real wasm-opt with do-nothing wasm-opt to avoid misoptimization before asyncify. asyncify is performed at POSTLINK, but clang linker driver tries to run optimization by wasm-opt unconditionally. inlining pass at wasm level breaks asyncify's assumption, so should not optimize before POSTLIK. wasm/GNUmakefile.in: wasm specific rules to compile objects
27 lines
829 B
ArmAsm
27 lines
829 B
ArmAsm
# extern int _rb_wasm_setjmp_internal(rb_wasm_jmp_buf *env);
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.functype _rb_wasm_setjmp_internal (i32) -> (i32)
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# extern int __stack_pointer;
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.globaltype __stack_pointer, i32
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# A wrapper of _rb_wasm_setjmp_internal to save and restore stack pointer
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# This cannot be implemented in C because there is no way to manipulate stack pointer
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# without C-epilogue.
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# extern int _rb_wasm_setjmp(rb_wasm_jmp_buf *env);
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.section .text._rb_wasm_setjmp,"",@
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.globl _rb_wasm_setjmp
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.type _rb_wasm_setjmp,@function
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_rb_wasm_setjmp:
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.functype _rb_wasm_setjmp (i32) -> (i32)
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.local i32, i32
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# save sp (this local is stored in asyncify stack and restored when rewinding)
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global.get __stack_pointer
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local.set 1
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local.get 0
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call _rb_wasm_setjmp_internal
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# restore sp
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local.get 1
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global.set __stack_pointer
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end_function
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