mirror of
https://github.com/ziglang/zig.git
synced 2025-12-06 06:13:07 +00:00
8cba6b1df8
This is f5fb720a5399ee98e45f36337b2f68a4d23a783c plus ehaas's nonnull attribute pull request currently at 4b26cb3ac610a0a070fc43e43da8b4cdf0e9101b with zig patches intact.
95 lines
2.5 KiB
Zig
Vendored
95 lines
2.5 KiB
Zig
Vendored
const std = @import("std");
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/// place uninitialized global variables in a common block
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common: bool,
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/// Place each function into its own section in the output file if the target supports arbitrary sections
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func_sections: bool,
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/// Place each data item into its own section in the output file if the target supports arbitrary sections
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data_sections: bool,
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pic_level: PicLevel,
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/// Generate position-independent code that can only be linked into executables
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is_pie: bool,
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optimization_level: OptimizationLevel,
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/// Generate debug information
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debug: DebugFormat,
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dwarf_version: DwarfVersion,
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pub const DebugFormat = union(enum) {
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strip,
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dwarf: std.dwarf.Format,
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code_view,
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};
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pub const DwarfVersion = enum(u3) {
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@"0" = 0,
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@"2" = 2,
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@"3" = 3,
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@"4" = 4,
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@"5" = 5,
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};
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pub const PicLevel = enum(u8) {
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/// Do not generate position-independent code
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none = 0,
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/// Generate position-independent code (PIC) suitable for use in a shared library, if supported for the target machine.
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one = 1,
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/// If supported for the target machine, emit position-independent code, suitable for dynamic linking and avoiding
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/// any limit on the size of the global offset table.
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two = 2,
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};
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pub const OptimizationLevel = enum {
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@"0",
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@"1",
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@"2",
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@"3",
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/// Optimize for size
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s,
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/// Disregard strict standards compliance
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fast,
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/// Optimize debugging experience
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g,
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/// Optimize aggressively for size rather than speed
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z,
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const level_map = std.StaticStringMap(OptimizationLevel).initComptime(.{
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.{ "0", .@"0" },
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.{ "1", .@"1" },
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.{ "2", .@"2" },
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.{ "3", .@"3" },
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.{ "s", .s },
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.{ "fast", .fast },
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.{ "g", .g },
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.{ "z", .z },
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});
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pub fn fromString(str: []const u8) ?OptimizationLevel {
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return level_map.get(str);
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}
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pub fn isSizeOptimized(self: OptimizationLevel) bool {
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return switch (self) {
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.s, .z => true,
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.@"0", .@"1", .@"2", .@"3", .fast, .g => false,
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};
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}
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pub fn hasAnyOptimizations(self: OptimizationLevel) bool {
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return switch (self) {
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.@"0" => false,
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.@"1", .@"2", .@"3", .s, .fast, .g, .z => true,
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};
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}
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};
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pub const default: @This() = .{
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.common = false,
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.func_sections = false,
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.data_sections = false,
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.pic_level = .none,
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.is_pie = false,
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.optimization_level = .@"0",
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.debug = .strip,
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.dwarf_version = .@"0",
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};
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