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pass the crash tag through

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Folkert 2023-07-27 19:28:08 +02:00
parent f692c8dabf
commit 29df340a26
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3 changed files with 54 additions and 25 deletions
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9
crates/compiler/gen_dev/src/generic64/x86_64.rs
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@ -485,7 +485,7 @@ impl CallConv<X86_64GeneralReg, X86_64FloatReg, X86_64Assembler> for X86_64Syste
ASM::mov_reg64_mem64_offset32(buf, RDX, RSP, 0);
ASM::mov_mem64_offset32_reg64(buf, RDI, offset, RDX);
// zero out eax, so we return 0i32 (we do a 64-bit xor for convenience)
// zero out eax, so we return 0 (we do a 64-bit xor for convenience)
ASM::xor_reg64_reg64_reg64(buf, RAX, RAX, RAX);
ASM::ret(buf)
@ -527,8 +527,11 @@ impl CallConv<X86_64GeneralReg, X86_64FloatReg, X86_64Assembler> for X86_64Syste
type ASM = X86_64Assembler;
// move the first argument to roc_panic (a *RocStr) into r8
ASM::mov_reg64_imm64(buf, R8, 8);
ASM::add_reg64_reg64_reg64(buf, R8, R8, RSP);
ASM::add_reg64_reg64_imm32(buf, R8, RSP, 8);
// move the crash tag into the second return register. We add 1 to it because the 0 value
// is already used for "no crash occurred"
ASM::add_reg64_reg64_imm32(buf, RDX, RDI, 1);
// the setlongjmp_buffer
ASM::data_pointer(buf, relocs, String::from("setlongjmp_buffer"), RDI);