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stage2: fix building self-hosted compiler with -Dstatic-llvm

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This supersedes c81ae52ee0
This commit is contained in:
Timon Kruiper 2020-12-29 18:52:53 +01:00
parent 5aac2fc281
commit 0ed04aac8b
2 changed files with 42 additions and 21 deletions
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43
build.zig
View File

@ -91,6 +91,20 @@ pub fn build(b: *Builder) !void {
exe.addBuildOption(bool, "have_llvm", enable_llvm);
if (enable_llvm) {
const cmake_cfg = if (static_llvm) null else findAndParseConfigH(b, config_h_path_option);
const exe_cflags = [_][]const u8{
"-std=c++14",
"-D__STDC_CONSTANT_MACROS",
"-D__STDC_FORMAT_MACROS",
"-D__STDC_LIMIT_MACROS",
"-D_GNU_SOURCE",
"-fvisibility-inlines-hidden",
"-fno-exceptions",
"-fno-rtti",
"-Werror=type-limits",
"-Wno-missing-braces",
"-Wno-comment",
};
if (is_stage1) {
exe.addIncludeDir("src");
exe.addIncludeDir("deps/SoftFloat-3e/source/include");
@ -109,28 +123,8 @@ pub fn build(b: *Builder) !void {
softfloat.addCSourceFiles(&softfloat_sources, &[_][]const u8{ "-std=c99", "-O3" });
exe.linkLibrary(softfloat);
const exe_cflags = [_][]const u8{
"-std=c++14",
"-D__STDC_CONSTANT_MACROS",
"-D__STDC_FORMAT_MACROS",
"-D__STDC_LIMIT_MACROS",
"-D_GNU_SOURCE",
"-fvisibility-inlines-hidden",
"-fno-exceptions",
"-fno-rtti",
"-Werror=type-limits",
"-Wno-missing-braces",
"-Wno-comment",
};
exe.addCSourceFiles(&stage1_sources, &exe_cflags);
exe.addCSourceFiles(&optimized_c_sources, &[_][]const u8{ "-std=c99", "-O3" });
if (cmake_cfg == null) {
// We need this because otherwise zig_clang_cc1_main.cpp ends up pulling
// in a dependency on llvm::cfg::Update<llvm::BasicBlock*>::dump() which is
// unavailable when LLVM is compiled in Release mode.
const zig_cpp_cflags = exe_cflags ++ [_][]const u8{"-DNDEBUG=1"};
exe.addCSourceFiles(&zig_cpp_sources, &zig_cpp_cflags);
}
}
if (cmake_cfg) |cfg| {
// Inside this code path, we have to coordinate with system packaged LLVM, Clang, and LLD.
@ -193,6 +187,15 @@ pub fn build(b: *Builder) !void {
}
} else {
// Here we are -Denable-llvm but no cmake integration.
// Adds the Zig C++ sources which both stage1 and stage2 need.
//
// We need this because otherwise zig_clang_cc1_main.cpp ends up pulling
// in a dependency on llvm::cfg::Update<llvm::BasicBlock*>::dump() which is
// unavailable when LLVM is compiled in Release mode.
const zig_cpp_cflags = exe_cflags ++ [_][]const u8{"-DNDEBUG=1"};
exe.addCSourceFiles(&zig_cpp_sources, &zig_cpp_cflags);
for (clang_libs) |lib_name| {
exe.linkSystemLibrary(lib_name);
}

20
src/zig_clang.h
View File

@ -8,14 +8,32 @@
#ifndef ZIG_ZIG_CLANG_H
#define ZIG_ZIG_CLANG_H
#include "stage1/stage2.h"
#include <inttypes.h>
#include <stdbool.h>
#include <stddef.h>
#ifdef __cplusplus
#define ZIG_EXTERN_C extern "C"
#else
#define ZIG_EXTERN_C
#endif
// ATTENTION: If you modify this file, be sure to update the corresponding
// extern function declarations in the self-hosted compiler file
// src/clang.zig.
// ABI warning
struct Stage2ErrorMsg {
const char *filename_ptr; // can be null
size_t filename_len;
const char *msg_ptr;
size_t msg_len;
const char *source; // valid until the ASTUnit is freed. can be null
unsigned line; // 0 based
unsigned column; // 0 based
unsigned offset; // byte offset into source
};
struct ZigClangSourceLocation {
unsigned ID;
};