几个编译错误

[Fors3cDream]

1. xh_core.c中未引入stdio.h导致编译时产生如下错误：
   jni/xh_core.c:140:5: error: use of undeclared identifier 'FILE'
   FILE *fp;

2. xh_elf.h中一些宏重复定义或者没有定义：

jni/xh_elf.c:61:9: error: 'ELF_R_SYM' macro redefined [-Werror,-Wmacro-redefined]
#define ELF_R_SYM(info) ELF32_R_SYM(info)
^
/Users/killer/AndTool/ndk/platforms/android-14/arch-arm/usr/include/sys/exec_elf.h:559:9: note: previous definition is here
#define ELF_R_SYM ELF32_R_SYM
^
jni/xh_elf.c:62:9: error: 'ELF_R_TYPE' macro redefined [-Werror,-Wmacro-redefined]
#define ELF_R_TYPE(info) ELF32_R_TYPE(info)
^
/Users/killer/AndTool/ndk/platforms/android-14/arch-arm/usr/include/sys/exec_elf.h:560:9: note: previous definition is here
#define ELF_R_TYPE ELF32_R_TYPE
^
jni/xh_elf.c:906:14: error: use of undeclared identifier 'DT_ANDROID_REL'
case DT_ANDROID_REL:
^
jni/xh_elf.c:907:14: error: use of undeclared identifier 'DT_ANDROID_RELA'
case DT_ANDROID_RELA:
^
jni/xh_elf.c:913:14: error: use of undeclared identifier 'DT_ANDROID_RELSZ'
case DT_ANDROID_RELSZ:
^
jni/xh_elf.c:914:14: error: use of undeclared identifier 'DT_ANDROID_RELASZ'
case DT_ANDROID_RELASZ:
^
jni/xh_elf.c:927:14: error: use of undeclared identifier 'DT_GNU_HASH'
case DT_GNU_HASH:
^
jni/xh_elf.c:1026:28: error: use of undeclared identifier 'R_ARM_JUMP_SLOT'
if(is_plt && r_type != R_GENERIC_JUMP_SLOT) return 0;
^
jni/xh_elf.c:48:29: note: expanded from macro 'R_GENERIC_JUMP_SLOT'
#define R_GENERIC_JUMP_SLOT R_ARM_JUMP_SLOT //.rel.plt
^
jni/xh_elf.c:1027:30: error: use of undeclared identifier 'R_ARM_GLOB_DAT'
if(!is_plt && (r_type != R_GENERIC_GLOB_DAT && r_type != R_GENERIC_ABS)) return 0;
^
jni/xh_elf.c:49:29: note: expanded from macro 'R_GENERIC_GLOB_DAT'
#define R_GENERIC_GLOB_DAT R_ARM_GLOB_DAT //.rel.dyn
^
jni/xh_elf.c:1027:62: error: use of undeclared identifier 'R_ARM_ABS32'
if(!is_plt && (r_type != R_GENERIC_GLOB_DAT && r_type != R_GENERIC_ABS)) return 0;
^
jni/xh_elf.c:50:29: note: expanded from macro 'R_GENERIC_ABS'
#define R_GENERIC_ABS R_ARM_ABS32 //.rel.dyn
^
10 errors generated.

[caikelun]

谢谢反馈！

应该是NDK版本差异导致的编译问题。我们目前使用的NDK版本是r16b，我已经修改了readme加入了对NDK版本的说明。

1. 根据规范，fopen和FILE确实应该include stdio.h。已修复。

2. ELF宏重复定义。xhook中自己定义的一些ELF宏，确实和旧版本NDK中定义的ELF宏有冲突。已修复。

3. ELF宏未定义。这个问题还是请你升级到最新版的NDK解决吧，android ELF格式的扩展还是比较频繁的，旧版本NDK中的宏定义肯定会有缺少。我这边目前不太可能去维护和测试旧版本NDK的兼容性。抱歉。

[Fors3cDream]

ok！用最新的版本测试成功。多谢楼主提供好用的hook。