organized build functions

2 files changed, 285 insertions, 0 deletions

diff --git a/build/capstone.zig b/build/capstone.zig
new file mode 100644
index 0000000..fa17784
--- /dev/null
+++ b/build/capstone.zig
@@ -0,0 +1,110 @@
+const std = @import("std");
+
+pub fn capstone(b: *std.Build, opts: struct {
+    target: std.Build.ResolvedTarget,
+    optimize: std.builtin.OptimizeMode,
+}) *std.Build.Step.Compile {
+    const capstone_dep = b.dependency("capstone", .{});
+
+    // later I'll use this
+    const translate_c = b.addTranslateC(.{
+        .root_source_file = capstone_dep.path("include/capstone/capstone.h"),
+        .target = opts.target,
+        .optimize = opts.optimize,
+        // .optimize = .Debug,
+        .link_libc = true,
+    });
+
+    const mod = translate_c.createModule();
+
+    // const mod = b.createModule(.{
+    //     .optimize = opts.optimize,
+    //     .target = opts.target,
+    //     .link_libc = true,
+    // });
+
+    mod.addIncludePath(capstone_dep.path("include"));
+    mod.addIncludePath(capstone_dep.path("include/capstone"));
+    mod.addIncludePath(capstone_dep.path("include/capstone/X86"));
+    mod.addIncludePath(capstone_dep.path("include/capstone/ARM"));
+
+    if (opts.optimize == .Debug) mod.addCMacro("CAPSTONE_DEBUG", "");
+    mod.addCMacro("CAPSTONE_HAS_X86", "");
+    mod.addCMacro("CAPSTONE_HAS_ARM", "");
+    mod.addCMacro("CAPSTONE_HAS_AArch64", "");
+    mod.addCMacro("CAPSTONE_BUILD_CSTOOL", "OFF");
+    mod.addCMacro("CAPSTONE_USE_SYS_DYN_MEM", "1");
+    mod.addCMacro("CAPSTONE_BUILD_DIET", "1");
+    mod.addCMacro("CAPSTONE_X86_REDUCE", "1");
+
+    mod.addCSourceFiles(.{ .root = capstone_dep.path(""), .files = common_sources });
+
+    mod.addCSourceFiles(.{
+        .root = capstone_dep.path("arch/ARM"),
+        .files = &.{
+            "ARMBaseInfo.c",
+            "ARMDisassembler.c",
+            "ARMDisassemblerExtension.c",
+            "ARMInstPrinter.c",
+            "ARMMapping.c",
+            "ARMModule.c",
+        },
+    });
+    mod.addCSourceFiles(.{
+        .root = capstone_dep.path("arch/X86"),
+        .files = &.{
+            "X86Disassembler.c",
+            "X86DisassemblerDecoder.c",
+            "X86IntelInstPrinter.c",
+            "X86ATTInstPrinter.c",
+            "X86InstPrinterCommon.c",
+            "X86Mapping.c",
+            "X86Module.c",
+        },
+    });
+
+    const capstone_lib = b.addLibrary(.{
+        .name = "capstone",
+        .linkage = .static,
+        .root_module = mod,
+    });
+
+    capstone_lib.installHeadersDirectory(capstone_dep.path("include/capstone"), "capstone", .{});
+    capstone_lib.installHeader(capstone_dep.path("include/platform.h"), "capstone/platform.h");
+
+    return capstone_lib;
+}
+const common_sources: []const []const u8 = &.{
+    "cs.c",
+    "Mapping.c",
+    "MCInst.c",
+    "MCInstrDesc.c",
+    "MCInstPrinter.c",
+    "MCRegisterInfo.c",
+    "SStream.c",
+    "utils.c",
+};
+
+// .AArch64
+// .ARC
+// .ARM
+// .Alpha
+// .BPF
+// .EVM
+// .HPPA
+// .LoongArch
+// .M680X
+// .M68K
+// .MOS65XX
+// .Mips
+// .PowerPC
+// .RISCV
+// .SH
+// .Sparc
+// .SystemZ
+// .TMS320C64x
+// .TriCore
+// .WASM
+// .X86
+// .XCore
+// .Xtensa
diff --git a/build/frida-gum.zig b/build/frida-gum.zig
new file mode 100644
index 0000000..dfee7de
--- /dev/null
+++ b/build/frida-gum.zig
@@ -0,0 +1,175 @@
+const std = @import("std");
+
+pub fn gum_stalker(b: *std.Build, opts: struct {
+    target: std.Build.ResolvedTarget,
+    optimize: std.builtin.OptimizeMode,
+}) *std.Build.Step.Compile {
+    const dep = b.dependency("frida-gum", .{});
+    const capstone_dep = b.dependency("capstone", .{});
+
+    // stub gumenumtypes.h — normally generated by gnome.mkenums
+    const wf = b.addWriteFiles();
+    _ = wf.add("gum/gumenumtypes.h",
+        \\#ifndef __GUM_ENUM_TYPES_H__
+        \\#define __GUM_ENUM_TYPES_H__
+        \\#include <glib-object.h>
+        \\G_BEGIN_DECLS
+        \\GType gum_elf_type_get_type (void) G_GNUC_CONST;
+        \\#define GUM_TYPE_ELF_TYPE (gum_elf_type_get_type ())
+        \\GType gum_elf_osabi_get_type (void) G_GNUC_CONST;
+        \\#define GUM_TYPE_ELF_OSABI (gum_elf_osabi_get_type ())
+        \\GType gum_elf_machine_get_type (void) G_GNUC_CONST;
+        \\#define GUM_TYPE_ELF_MACHINE (gum_elf_machine_get_type ())
+        \\GType gum_elf_source_mode_get_type (void) G_GNUC_CONST;
+        \\#define GUM_TYPE_ELF_SOURCE_MODE (gum_elf_source_mode_get_type ())
+        \\G_END_DECLS
+        \\#endif
+    );
+
+    // C-only module (translate-c can't handle GLib's _Pragma macros)
+    const c_mod = b.createModule(.{
+        .target = opts.target,
+        // .optimize = opts.optimize,
+        .optimize = .Debug,
+        .link_libc = true,
+    });
+
+    // include paths for C source compilation
+    c_mod.addIncludePath(dep.path(""));
+    c_mod.addIncludePath(dep.path("gum"));
+    c_mod.addIncludePath(dep.path("gum/arch-x86"));
+    c_mod.addIncludePath(dep.path("gum/arch-arm"));
+    c_mod.addIncludePath(dep.path("gum/arch-arm64"));
+    c_mod.addIncludePath(dep.path("gum/arch-mips"));
+    c_mod.addIncludePath(dep.path("gum/backend-linux/include"));
+    c_mod.addIncludePath(dep.path("gum/backend-elf"));
+    c_mod.addIncludePath(dep.path("gum/backend-posix"));
+    c_mod.addIncludePath(dep.path("libs"));
+    c_mod.addIncludePath(dep.path("libs/gum/heap"));
+    c_mod.addIncludePath(dep.path("libs/gum/prof"));
+    c_mod.addIncludePath(capstone_dep.path("include/capstone"));
+    c_mod.addIncludePath(capstone_dep.path("include"));
+    c_mod.addIncludePath(wf.getDirectory());
+
+    // system libraries
+    c_mod.linkSystemLibrary("glib-2.0", .{});
+    c_mod.linkSystemLibrary("gobject-2.0", .{});
+
+    // config defines — replaces meson's config.h + add_project_arguments
+    // platform / arch
+    c_mod.addCMacro("HAVE_LINUX", "1");
+    c_mod.addCMacro("HAVE_I386", "1");
+    c_mod.addCMacro("HAVE_ELF", "1");
+    c_mod.addCMacro("HAVE_GLIBC", "1");
+    // frida-gum options
+    c_mod.addCMacro("GUM_STATIC", "1");
+    c_mod.addCMacro("GUM_USE_SYSTEM_ALLOC", "1");
+    c_mod.addCMacro("FRIDA_VERSION", "\"16.x\"");
+    // compiler feature detection
+    c_mod.addCMacro("HAVE_SYNC_LOCK", "1");
+    c_mod.addCMacro("HAVE_CLEAR_CACHE", "1");
+    c_mod.addCMacro("HAVE_CLTZ", "1");
+    c_mod.addCMacro("HAVE_POPCOUNT", "1");
+    c_mod.addCMacro("HAVE_PACK_PRAGMA", "1");
+    // system headers
+    c_mod.addCMacro("HAVE_ELF_H", "1");
+    c_mod.addCMacro("HAVE_LINK_H", "1");
+    c_mod.addCMacro("HAVE_STDINT_H", "1");
+    c_mod.addCMacro("HAVE_SYS_AUXV_H", "1");
+    c_mod.addCMacro("HAVE_ASM_PRCTL_H", "1");
+    c_mod.addCMacro("HAVE_SYS_USER_H", "1");
+    // system functions / types
+    c_mod.addCMacro("HAVE_MADVISE", "1");
+    c_mod.addCMacro("HAVE_LONG_DOUBLE", "1");
+    c_mod.addCMacro("HAVE_LONG_LONG_INT", "1");
+    c_mod.addCMacro("HAVE_UNSIGNED_LONG_LONG_INT", "1");
+    c_mod.addCMacro("HAVE_PTHREAD_ATTR_GETSTACK", "1");
+    c_mod.addCMacro("HAVE_PTHREAD_SETNAME_NP", "1");
+    // NOTE: HAVE_FRIDA_GLIB omitted — system GLib lacks frida's patches
+    // capstone compat (frida-gum uses capstone 5 type names)
+    c_mod.addCMacro("CAPSTONE_ARM_COMPAT_HEADER", "1");
+    c_mod.addCMacro("CAPSTONE_AARCH64_COMPAT_HEADER", "1");
+    c_mod.addCMacro("CAPSTONE_SYSTEMZ_COMPAT_HEADER", "1");
+    // GLib / compiler flags
+    c_mod.addCMacro("_GNU_SOURCE", "1");
+    c_mod.addCMacro("G_LOG_DOMAIN", "\"Frida\"");
+    c_mod.addCMacro("GLIB_VERSION_MIN_REQUIRED", "GLIB_VERSION_2_56");
+    c_mod.addCMacro("G_DISABLE_DEPRECATED", "");
+
+    // core + arch writers (unconditional in upstream meson)
+    c_mod.addCSourceFiles(.{
+        .root = dep.path("gum"),
+        .files = &.{
+            "gum.c",
+            "gumapiresolver.c",
+            "gumbacktracer.c",
+            "gumcloak.c",
+            "gumcodeallocator.c",
+            "gumcodesegment.c",
+            // gumdarwingrafter.c and gumdarwinmodule.c omitted (darwin only)
+            "gumelfmodule.c",
+            "gumeventsink.c",
+            "gumexceptor.c",
+            "gumheapapi.c",
+            "guminterceptor.c",
+            "guminvocationcontext.c",
+            "guminvocationlistener.c",
+            "gumkernel.c",
+            "gumleb.c",
+            "gumlibc.c",
+            "gummemory.c",
+            "gummemorymap.c",
+            "gummetalarray.c",
+            "gummetalhash.c",
+            "gummoduleapiresolver.c",
+            "gummodulemap.c",
+            "gumprintf.c",
+            "gumprocess.c",
+            "gumthreadregistry.c",
+            "gummodule.c",
+            "gummodulefacade.c",
+            "gummoduleregistry.c",
+            "gumreturnaddress.c",
+            "gumspinlock.c",
+            "gumstalker.c",
+            "gumswiftapiresolver.c",
+            // arch writers (x86 only — arm/arm64/mips need frida's capstone fork)
+            "arch-x86/gumx86writer.c",
+            "arch-x86/gumx86relocator.c",
+            "arch-x86/gumx86reader.c",
+            // x86 backend
+            "arch-x86/gumx86backtracer.c",
+            "backend-x86/gumcpucontext-x86.c",
+            "backend-x86/gumprocess-x86.c",
+            "backend-x86/guminterceptor-x86.c",
+            "backend-x86/gumstalker-x86.c",
+            // linux + posix backend
+            "backend-linux/gummemory-linux.c",
+            "backend-posix/gummemory-posix.c",
+            "backend-linux/gumprocess-linux.c",
+            "backend-linux/gumthreadregistry-linux.c",
+            "backend-linux/gummoduleregistry-linux.c",
+            "backend-linux/gummodule-linux.c",
+            "backend-posix/gumtls-posix.c",
+            "backend-posix/gumexceptor-posix.c",
+            "backend-posix/gummemoryaccessmonitor-posix.c",
+            // elf backend
+            "backend-elf/gummodule-elf.c",
+            "backend-elf/gummoduleregistry-elf.c",
+        },
+    });
+
+    // x86 assembly glue
+    c_mod.addAssemblyFile(dep.path("gum/backend-x86/gumstalker-x86-glue.S"));
+
+    const stalker_lib = b.addLibrary(.{
+        .name = "gumstalker",
+        .linkage = .static,
+        .root_module = c_mod,
+    });
+
+    stalker_lib.installHeadersDirectory(capstone_dep.path("include/capstone"), "capstone", .{});
+    stalker_lib.installHeader(capstone_dep.path("include/platform.h"), "capstone/platform.h");
+
+    return stalker_lib;
+}