build

Author: jacobly0

.lldbinit

@@ -0,0 +1,5 @@
+command script import tools/lldb_pretty_printers.py
+type category enable zig.stage2 zig.std zig.lang
+type summary add --category zig.stage2 --inline-children arch.x86_64.CodeGen.FrameAddr
+type summary add --category zig.stage2 --inline-children arch.x86_64.CodeGen.RegisterOffset
+type summary add --category zig.stage2 --inline-children arch.x86_64.CodeGen.InstTracking

build.sh

@@ -0,0 +1,11 @@
+#!/bin/sh
+set -e
+build=build
+if [ "x$1" != x--debug ]; then
+    cmake -GNinja -S. -B$build -DCMAKE_BUILD_TYPE:STRING=Release -DCMAKE_C_COMPILER:FILEPATH=clang -DCMAKE_CXX_COMPILER:FILEPATH=clang++ -DZIG_NO_LIB:BOOL=ON
+    cmake --build $build
+    cmake --install $build
+else
+    shift
+fi
+$build/stage3/bin/zig build -p debug -Dno-lib -Denable-llvm "$@"

lib/std/Build/Step/Run.zig

@@ -976,6 +976,35 @@ fn runCommand(
         else => false,
     };
 
+    if (b.enable_qemu) runtime_dir: {
+        const exe = switch (run.argv.items[0]) {
+            .artifact => |exe| exe.artifact,
+            else => break :runtime_dir,
+        };
+        switch (exe.kind) {
+            .exe, .@"test" => {},
+            else => break :runtime_dir,
+        }
+
+        const root_target = exe.rootModuleTarget();
+        const need_cross_glibc = root_target.isGnuLibC() and
+            exe.is_linking_libc;
+
+        const glibc_dir_arg = if (need_cross_glibc)
+            b.glibc_runtimes_dir
+        else
+            null;
+        if (glibc_dir_arg) |dir| run.setEnvironmentVariable("QEMU_LD_PREFIX", b.pathJoin(&.{
+            dir,
+            try std.zig.target.glibcRuntimeTriple(
+                b.allocator,
+                root_target.cpu.arch,
+                root_target.os.tag,
+                root_target.abi,
+            ),
+        }));
+    }
+
     var interp_argv = std.ArrayList([]const u8).init(b.allocator);
     defer interp_argv.deinit();
 

lldb

@@ -0,0 +1 @@
+../../llvm/lldb/Debug/bin/lldb

test.sh

@@ -0,0 +1,26 @@
+#!/bin/bash
+if [[ $1 == --behavior-c ]]; then
+    shift
+    ./build.sh --debug && debug/bin/zig test -Itest test/behavior.zig -ofmt=c "$@"
+elif [[ $1 == --enable-fixed-behavior ]]; then
+    backend=$2
+    shift 2
+    declare -A offsets
+    git grep --no-index --line-number stage2_$backend test/behavior | while read -r match; do
+        printf '\e[36mTrying to enable... %s\e[m\n' "$match"
+        file=`cut -d: -f1 <<<"$match"`
+        offset=${offsets[$file]:=0}
+        echo "match = \"$match\""
+        let line=`cut -d: -f2 <<<"$match"`-$offset
+        contents=`cut -d: -f3- <<<"$match"`
+        sed --in-place "${line}d" "$file"
+        if timeout 15s debug/bin/zig test test/behavior.zig "$@"; then
+            printf '\e[32mTest was enabled! :)\e[m\n'
+            let offsets[$file]+=1
+        else
+            printf '\e[31mTest kept disabled. :(\e[m\n'
+            sed --in-place "${line}i\\
+$contents" "$file"
+        fi
+    done
+fi