added option to run with gdb

1 files changed, 43 insertions, 10 deletions

diff --git a/build.zig b/build.zig
index 10055a2..7b1e650 100644
--- a/build.zig
+++ b/build.zig
@@ -12,11 +12,12 @@ pub fn build(b: *std.Build) !void {
     });
 
     const elfo = b.addExecutable(.{
-        .name = "elfo-pretty",
+        .name = "elfo",
         .root_module = b.createModule(.{
-            .root_source_file = b.path("src/elfo-pretty.zig"),
+            .root_source_file = b.path("src/elfo.zig"),
             .target = target,
             .optimize = optimize,
+            .link_libc = true,
         }),
     });
 
@@ -47,15 +48,45 @@ pub fn build(b: *std.Build) !void {
     b.installArtifact(elfo);
     b.installArtifact(gloves);
 
-    const run_elfo_cmd = b.addRunArtifact(elfo);
-    const run_elfo_step = b.step("elfo", "See the pretty elfo!");
-    run_elfo_step.dependOn(&run_elfo_cmd.step);
+    const gdb_opt = b.option(bool, "gdb", "Run executable under gdb") orelse false;
+    const comp_opts = b.addOptions();
+    comp_opts.addOption(bool, "gdb", gdb_opt);
 
-    const run_gloves_cmd = b.addRunArtifact(gloves);
+    const unit_tests = b.addTest(.{
+        .root_module = b.createModule(.{
+            .optimize = optimize,
+            .target = target,
+            .root_source_file = b.path("tests/test.zig"),
+        }),
+    });
+
+    const test_step = b.step("test", "Test the library");
+
+    const run_elfo_step = b.step("elfo", "See the pretty elfo!");
     const run_gloves_step = b.step("gloves", "See the pretty gloves!");
-    run_gloves_step.dependOn(&run_gloves_cmd.step);
 
-    // TODO: add flag to run on gdb
+    const run_steps = [_]struct { *std.Build.Step, *std.Build.Step.Compile }{
+        .{ test_step, unit_tests },
+        .{ run_elfo_step, elfo },
+        .{ run_gloves_step, gloves },
+    };
+    const gdbscript = b.addWriteFile("gdbscript",
+        \\r
+    );
+
+    for (run_steps) |run| {
+        run.@"1".root_module.addOptions("meta", comp_opts);
+        if (gdb_opt) {
+            const run_gdb = b.addSystemCommand(&.{"gdb"});
+            run_gdb.addArg("-x");
+            run_gdb.addFileArg(gdbscript.getDirectory().path(b, "gdbscript"));
+            run_gdb.addArtifactArg(run.@"1");
+            run.@"0".dependOn(&run_gdb.step);
+        } else {
+            const run_unit = b.addRunArtifact(run.@"1");
+            run.@"0".dependOn(&run_unit.step);
+        }
+    }
 }
 
 fn gum_stalker(b: *std.Build, opts: struct {
@@ -87,7 +118,8 @@ fn gum_stalker(b: *std.Build, opts: struct {
     // C-only module (translate-c can't handle GLib's _Pragma macros)
     const c_mod = b.createModule(.{
         .target = opts.target,
-        .optimize = opts.optimize,
+        // .optimize = opts.optimize,
+        .optimize = .Debug,
         .link_libc = true,
     });
 
@@ -239,7 +271,8 @@ fn capstone(b: *std.Build, opts: struct {
     const translate_c = b.addTranslateC(.{
         .root_source_file = capstone_dep.path("include/capstone/capstone.h"),
         .target = opts.target,
-        .optimize = opts.optimize,
+        // .optimize = opts.optimize,
+        .optimize = .Debug,
         .link_libc = true,
     });