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add support for linux_riscv64 and freestanding_riscv64

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Laytan
2024-08-15 20:39:35 +02:00
committed by Laytan Laats
parent 29838da782
commit ca6ef95b03
28 changed files with 1395 additions and 116 deletions
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25
src/llvm_backend_proc.cpp
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@@ -2877,6 +2877,31 @@ gb_internal lbValue lb_build_builtin_proc(lbProcedure *p, Ast *expr, TypeAndValu
LLVMValueRef inline_asm = nullptr;
switch (build_context.metrics.arch) {
case TargetArch_riscv64:
{
GB_ASSERT(arg_count <= 7);
char asm_string[] = "ecall";
gbString constraints = gb_string_make(heap_allocator(), "={a0}");
for (unsigned i = 0; i < arg_count; i++) {
constraints = gb_string_appendc(constraints, ",{");
static char const *regs[] = {
"a7",
"a0",
"a1",
"a2",
"a3",
"a4",
"a5",
"a6"
};
constraints = gb_string_appendc(constraints, regs[i]);
constraints = gb_string_appendc(constraints, "}");
}
inline_asm = llvm_get_inline_asm(func_type, make_string_c(asm_string), make_string_c(constraints));
}
break;
case TargetArch_amd64:
{
GB_ASSERT(arg_count <= 7);