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x86_64: implement error name

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This commit is contained in:
Jacob Young
2023-04-01 03:08:55 -04:00
parent ccefa9dbf5
commit 677427bc3a
11 changed files with 529 additions and 42 deletions
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51
src/codegen.zig
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@@ -99,6 +99,47 @@ fn writeFloat(comptime F: type, f: F, target: Target, endian: std.builtin.Endian
mem.writeInt(Int, code[0..@sizeOf(Int)], int, endian);
}
pub fn generateLazySymbol(
bin_file: *link.File,
src_loc: Module.SrcLoc,
lazy_sym: link.File.LazySymbol,
code: *std.ArrayList(u8),
debug_output: DebugInfoOutput,
reloc_info: RelocInfo,
) CodeGenError!Result {
_ = debug_output;
_ = reloc_info;
const tracy = trace(@src());
defer tracy.end();
const target = bin_file.options.target;
const endian = target.cpu.arch.endian();
const mod = bin_file.options.module.?;
log.debug("generateLazySymbol: kind = {s}, ty = {}", .{
@tagName(lazy_sym.kind),
lazy_sym.ty.fmt(mod),
});
if (lazy_sym.kind == .const_data and lazy_sym.ty.isAnyError()) {
const err_names = mod.error_name_list.items;
try code.resize(err_names.len * 4);
for (err_names, 0..) |err_name, index| {
mem.writeInt(u32, code.items[index * 4 ..][0..4], @intCast(u32, code.items.len), endian);
try code.ensureUnusedCapacity(err_name.len + 1);
code.appendSliceAssumeCapacity(err_name);
code.appendAssumeCapacity(0);
}
return Result.ok;
} else return .{ .fail = try ErrorMsg.create(
bin_file.allocator,
src_loc,
"TODO implement generateLazySymbol for {s} {}",
.{ @tagName(lazy_sym.kind), lazy_sym.ty.fmt(mod) },
) };
}
pub fn generateSymbol(
bin_file: *link.File,
src_loc: Module.SrcLoc,
@@ -118,9 +159,10 @@ pub fn generateSymbol(
const target = bin_file.options.target;
const endian = target.cpu.arch.endian();
const mod = bin_file.options.module.?;
log.debug("generateSymbol: ty = {}, val = {}", .{
typed_value.ty.fmtDebug(),
typed_value.val.fmtDebug(),
typed_value.ty.fmt(mod),
typed_value.val.fmtValue(typed_value.ty, mod),
});
if (typed_value.val.isUndefDeep()) {
@@ -170,7 +212,6 @@ pub fn generateSymbol(
},
.str_lit => {
const str_lit = typed_value.val.castTag(.str_lit).?.data;
const mod = bin_file.options.module.?;
const bytes = mod.string_literal_bytes.items[str_lit.index..][0..str_lit.len];
try code.ensureUnusedCapacity(bytes.len + 1);
code.appendSliceAssumeCapacity(bytes);
@@ -300,7 +341,6 @@ pub fn generateSymbol(
switch (container_ptr.tag()) {
.decl_ref => {
const decl_index = container_ptr.castTag(.decl_ref).?.data;
const mod = bin_file.options.module.?;
const decl = mod.declPtr(decl_index);
const addend = blk: {
switch (decl.ty.zigTypeTag()) {
@@ -493,7 +533,6 @@ pub fn generateSymbol(
const field_vals = typed_value.val.castTag(.aggregate).?.data;
const abi_size = math.cast(usize, typed_value.ty.abiSize(target)) orelse return error.Overflow;
const current_pos = code.items.len;
const mod = bin_file.options.module.?;
try code.resize(current_pos + abi_size);
var bits: u16 = 0;
@@ -570,7 +609,6 @@ pub fn generateSymbol(
}
const union_ty = typed_value.ty.cast(Type.Payload.Union).?.data;
const mod = bin_file.options.module.?;
const field_index = typed_value.ty.unionTagFieldIndex(union_obj.tag, mod).?;
assert(union_ty.haveFieldTypes());
const field_ty = union_ty.fields.values()[field_index].ty;
@@ -776,7 +814,6 @@ pub fn generateSymbol(
},
.str_lit => {
const str_lit = typed_value.val.castTag(.str_lit).?.data;
const mod = bin_file.options.module.?;
const bytes = mod.string_literal_bytes.items[str_lit.index..][0..str_lit.len];
try code.ensureUnusedCapacity(str_lit.len);
code.appendSliceAssumeCapacity(bytes);