C代码宏编译错误（AOSP：外部/ clearsilver/util的/ neo_err.h）

-1

我在C编译错误，涉及的宏，这是驾驶我坚果。这不是我的代码，而是广泛使用的库的一部分。我给你后面的故事，因为我知道我会问，否则。C代码宏编译错误（AOSP：外部/ clearsilver/util的/ neo_err.h）

我试图建立Android开源项目（AOSP）的Droid的2.3版，在Ubuntu v.16.04，通过GNU制作v.3.81。我遇到很多错误，这都与回本小学一：

external/clearsilver/util/neo_err.h:88:69: error: expected expression before ‘)’ token 
    nerr_raisef(__PRETTY_FUNCTION__,__FILE__,__LINE__,e,f,__VA_ARGS__)

根据这个家伙的“问Ubuntu的”，他在安装libswitch-perl后遇到这个问题：

https://askubuntu.com/questions/830569/external-clearsilver-util-neo-err-h8869-error-expected-expression-before

那似乎是一个非常奇怪的原因！我从来没有以前编译AOSP，所以我不能做一个比较的要求。对于它的价值，我没有安装。

dpkg-query: package 'libswitch-perl' is not installed and no information is available

忽略其他任何东西，让我们来深入了解更多细节。下面是相关clearsilver码：上线时

#if defined(USE_C99_VARARG_MACROS) 
#define nerr_raise(e,f,...) \ 
    nerr_raisef(__PRETTY_FUNCTION__,__FILE__,__LINE__,e,f,__VA_ARGS__) 
#elif defined(USE_GNUC_VARARG_MACROS) 
#define nerr_raise(e,f,a...) \ 
    nerr_raisef(__PRETTY_FUNCTION__,__FILE__,__LINE__,e,f,##a) 
#endif 

NEOERR *nerr_raisef (const char *func, const char *file, int lineno, 
        NERR_TYPE error, const char *fmt, ...) 
        ATTRIBUTE_PRINTF(5,6);

错误：

nerr_raisef(__PRETTY_FUNCTION__,__FILE__,__LINE__,e,f,__VA_ARGS__)

我累了移动的宏定义到nerr_raisef函数定义之后，而且没有任何影响。我也试过这些行（这是失败的行之前插入），以帮助查找问题：

#define mytest1 __PRETTY_FUNCTION__ 
#define myitest2 __FILE__ 
#define mytest3 __LINE__ 
#define mytest4(...) __VA_ARGS__ 
#define mytest5(e,f) nerr_raisef(__PRETTY_FUNCTION__,__FILE__,__LINE__,e,f) 
#define mytest6(e,f,...) nerr_raisef(__PRETTY_FUNCTION__,__FILE__,__LINE__,e,f) 
#define mytest7(e,f,...) nerr_raisef(__PRETTY_FUNCTION__,__FILE__,__LINE__,e,f,__VA_ARGS__) 
#define mytest8(e,f,...) \ 
    nerr_raisef(__PRETTY_FUNCTION__,__FILE__,__LINE__,e,f,__VA_ARGS__) 

#ifdef nerr_raise 
x 
#endif

万无一失那些。请注意，mytest8宏是完全相同的该死的东西，用不同的名称，并编译！此外，松散x不包括在内，即nerr_raise先前未定义。

这里就是整个输出运行时，make我得到：

============================================ 
PLATFORM_VERSION_CODENAME=REL 
PLATFORM_VERSION=2.3.4 
TARGET_PRODUCT=imx53_smd 
TARGET_BUILD_VARIANT=user 
TARGET_SIMULATOR=false 
TARGET_BUILD_TYPE=release 
TARGET_BUILD_APPS= 
TARGET_ARCH=arm 
HOST_ARCH=x86 
HOST_OS=linux 
HOST_BUILD_TYPE=release 
BUILD_ID=GRJ22 
============================================ 
build/core/main.mk:303: implicitly installing apns-conf_sdk.xml 
find: ‘frameworks/base/frameworks/base/docs/html’: No such file or directory 
find: ‘out/target/common/docs/gen’: No such file or directory 
find: ‘frameworks/base/frameworks/base/docs/html’: No such file or directory 
find: ‘out/target/common/docs/gen’: No such file or directory 
find: ‘frameworks/base/frameworks/base/docs/html’: No such file or directory 
find: ‘out/target/common/docs/gen’: No such file or directory 
find: ‘frameworks/base/frameworks/base/docs/html’: No such file or directory 
find: ‘out/target/common/docs/gen’: No such file or directory 
find: ‘frameworks/base/frameworks/base/docs/html’: No such file or directory 
find: ‘out/target/common/docs/gen’: No such file or directory 
No private recovery resources for TARGET_DEVICE imx53_smd 
host Java: droiddoc (out/host/common/obj/JAVA_LIBRARIES/droiddoc_intermediates/classes) 
host C: libclearsilver-jni <= external/clearsilver/java-jni/j_neo_util.c 
host C: libneo_util <= external/clearsilver/util/neo_files.c 
host C: libneo_util <= external/clearsilver/util/ulist.c 
host C: libneo_util <= external/clearsilver/util/neo_hdf.c 
host C: libneo_util <= external/clearsilver/util/neo_str.c 
host C: libneo_util <= external/clearsilver/util/ulocks.c 
host C: libneo_util <= external/clearsilver/util/neo_hash.c 
In file included from external/clearsilver/util/ulist.c:19:0: 
external/clearsilver/util/ulist.c: In function ‘uListInit’: 
external/clearsilver/util/neo_err.h:88:69: error: expected expression before ‘)’ token 
    nerr_raisef(__PRETTY_FUNCTION__,__FILE__,__LINE__,e,f,__VA_ARGS__) 
                    ^
external/clearsilver/util/ulist.c:64:12: note: in expansion of macro ‘nerr_raise’ 
    return nerr_raise(NERR_NOMEM, "Unable to create ULIST: Out of memory"); 
      ^
external/clearsilver/util/neo_err.h:88:69: error: expected expression before ‘)’ token 
    nerr_raisef(__PRETTY_FUNCTION__,__FILE__,__LINE__,e,f,__VA_ARGS__) 
                    ^
external/clearsilver/util/ulist.c:70:12: note: in expansion of macro ‘nerr_raise’ 
    return nerr_raise(NERR_NOMEM, "Unable to create ULIST: Out of memory"); 
      ^
external/clearsilver/util/ulist.c: In function ‘uListPop’: 
external/clearsilver/util/neo_err.h:88:69: error: expected expression before ‘)’ token 
    nerr_raisef(__PRETTY_FUNCTION__,__FILE__,__LINE__,e,f,__VA_ARGS__) 
                    ^
external/clearsilver/util/ulist.c:124:12: note: in expansion of macro ‘nerr_raise’ 
    return nerr_raise(NERR_OUTOFRANGE, "uListPop: empty list"); 
      ^
In file included from external/clearsilver/java-jni/j_neo_util.c:6:0: 
external/clearsilver/java-jni/j_neo_util.c: In function ‘jni_fileload_cb’: 
external/clearsilver/java-jni/../util/neo_err.h:88:69: error: expected expression before ‘)’ token 
    nerr_raisef(__PRETTY_FUNCTION__,__FILE__,__LINE__,e,f,__VA_ARGS__) 
                    ^
external/clearsilver/java-jni/j_neo_util.c:257:12: note: in expansion of macro ‘nerr_raise’ 
    return nerr_raise(NERR_ASSERT, 
      ^
external/clearsilver/java-jni/../util/neo_err.h:88:69: error: expected expression before ‘)’ token 
    nerr_raisef(__PRETTY_FUNCTION__,__FILE__,__LINE__,e,f,__VA_ARGS__) 
                    ^
external/clearsilver/java-jni/j_neo_util.c:268:12: note: in expansion of macro ‘nerr_raise’ 
    return nerr_raise(NERR_ASSERT, 
      ^
In file included from external/clearsilver/util/neo_files.c:26:0: 
external/clearsilver/util/neo_files.c: In function ‘ne_listdir_fmatch’: 
external/clearsilver/util/neo_err.h:88:69: error: expected expression before ‘)’ token 
    nerr_raisef(__PRETTY_FUNCTION__,__FILE__,__LINE__,e,f,__VA_ARGS__) 
                    ^
external/clearsilver/util/neo_files.c:219:12: note: in expansion of macro ‘nerr_raise’ 
    return nerr_raise(NERR_ASSERT, "Invalid call to ne_listdir_fmatch"); 
      ^
In file included from external/clearsilver/util/neo_hdf.c:24:0: 
external/clearsilver/util/neo_hdf.c: In function ‘_alloc_hdf’: 
external/clearsilver/util/neo_err.h:88:69: error: expected expression before ‘)’ token 
    nerr_raisef(__PRETTY_FUNCTION__,__FILE__,__LINE__,e,f,__VA_ARGS__) 
                    ^
external/clearsilver/util/neo_hdf.c:62:12: note: in expansion of macro ‘nerr_raise’ 
    return nerr_raise (NERR_NOMEM, "Unable to allocate memory for hdf element"); 
      ^
In file included from external/clearsilver/util/neo_str.c:22:0: 
external/clearsilver/util/neo_str.c: In function ‘string_appendvf’: 
external/clearsilver/util/neo_err.h:88:69: error: expected expression before ‘)’ token 
    nerr_raisef(__PRETTY_FUNCTION__,__FILE__,__LINE__,e,f,__VA_ARGS__) 
                    ^
external/clearsilver/util/neo_str.c:167:14: note: in expansion of macro ‘nerr_raise’ 
     return nerr_raise(NERR_NOMEM, 
      ^
external/clearsilver/util/neo_str.c: In function ‘string_array_split’: 
external/clearsilver/util/neo_err.h:88:69: error: expected expression before ‘)’ token 
    nerr_raisef(__PRETTY_FUNCTION__,__FILE__,__LINE__,e,f,__VA_ARGS__) 
                    ^
external/clearsilver/util/neo_str.c:223:12: note: in expansion of macro ‘nerr_raise’ 
    return nerr_raise (NERR_ASSERT, "separator must be at least one character"); 
      ^
external/clearsilver/util/neo_hdf.c: In function ‘hdf_set_attr’: 
external/clearsilver/util/neo_err.h:88:69: error: expected expression before ‘)’ token 
    nerr_raisef(__PRETTY_FUNCTION__,__FILE__,__LINE__,e,f,__VA_ARGS__) 
                    ^
external/clearsilver/util/neo_hdf.c:409:12: note: in expansion of macro ‘nerr_raise’ 
    return nerr_raise(NERR_ASSERT, "Unable to set attribute on none existant node"); 
      ^
external/clearsilver/util/neo_hdf.c: In function ‘_set_value’: 
external/clearsilver/util/neo_err.h:88:69: error: expected expression before ‘)’ token 
    nerr_raisef(__PRETTY_FUNCTION__,__FILE__,__LINE__,e,f,__VA_ARGS__) 
                    ^
external/clearsilver/util/neo_hdf.c:648:14: note: in expansion of macro ‘nerr_raise’ 
     return nerr_raise(NERR_NOMEM, "Unable to allocate memory"); 
      ^
external/clearsilver/util/neo_err.h:88:69: error: expected expression before ‘)’ token 
    nerr_raisef(__PRETTY_FUNCTION__,__FILE__,__LINE__,e,f,__VA_ARGS__) 
                    ^
external/clearsilver/util/neo_hdf.c:795:16: note: in expansion of macro ‘nerr_raise’ 
     return nerr_raise(NERR_NOMEM, "Unable to allocate memory"); 
       ^
external/clearsilver/util/neo_hdf.c: In function ‘hdf_set_valuevf’: 
external/clearsilver/util/neo_err.h:88:69: error: expected expression before ‘)’ token 
    nerr_raisef(__PRETTY_FUNCTION__,__FILE__,__LINE__,e,f,__VA_ARGS__) 
                    ^
external/clearsilver/util/neo_hdf.c:869:12: note: in expansion of macro ‘nerr_raise’ 
    return nerr_raise(NERR_NOMEM, "Unable to allocate memory for format string"); 
      ^
external/clearsilver/util/neo_hdf.c: In function ‘_copy_attr’: 
external/clearsilver/util/neo_err.h:88:69: error: expected expression before ‘)’ token 
    nerr_raisef(__PRETTY_FUNCTION__,__FILE__,__LINE__,e,f,__VA_ARGS__) 
                    ^
external/clearsilver/util/neo_hdf.c:1028:14: note: in expansion of macro ‘nerr_raise’ 
     return nerr_raise(NERR_NOMEM, "Unable to allocate copy of HDF_ATTR"); 
      ^
external/clearsilver/util/neo_err.h:88:69: error: expected expression before ‘)’ token 
    nerr_raisef(__PRETTY_FUNCTION__,__FILE__,__LINE__,e,f,__VA_ARGS__) 
                    ^
external/clearsilver/util/neo_hdf.c:1036:14: note: in expansion of macro ‘nerr_raise’ 
     return nerr_raise(NERR_NOMEM, "Unable to allocate copy of HDF_ATTR"); 
      ^
In file included from external/clearsilver/util/ulocks.c:22:0: 
external/clearsilver/util/ulocks.c: In function ‘fLock’: 
external/clearsilver/util/neo_err.h:102:75: error: expected expression before ‘)’ token 
    nerr_raise_errnof(__PRETTY_FUNCTION__,__FILE__,__LINE__,e,f,__VA_ARGS__) 
                     ^
external/clearsilver/util/ulocks.c:96:12: note: in expansion of macro ‘nerr_raise_errno’ 
    return nerr_raise_errno (NERR_LOCK, "File lock failed"); 
      ^
In file included from external/clearsilver/util/neo_hash.c:18:0: 
external/clearsilver/util/neo_hash.c: In function ‘ne_hash_init’: 
external/clearsilver/util/neo_err.h:88:69: error: expected expression before ‘)’ token 
    nerr_raisef(__PRETTY_FUNCTION__,__FILE__,__LINE__,e,f,__VA_ARGS__) 
                    ^
external/clearsilver/util/neo_hash.c:30:12: note: in expansion of macro ‘nerr_raise’ 
    return nerr_raise(NERR_NOMEM, "Unable to allocate memory for NE_HASH"); 
      ^
external/clearsilver/util/neo_err.h:88:69: error: expected expression before ‘)’ token 
    nerr_raisef(__PRETTY_FUNCTION__,__FILE__,__LINE__,e,f,__VA_ARGS__) 
                    ^
external/clearsilver/util/neo_hash.c:41:12: note: in expansion of macro ‘nerr_raise’ 
    return nerr_raise(NERR_NOMEM, "Unable to allocate memory for NE_HASHNODES"); 
      ^
external/clearsilver/util/neo_hdf.c: In function ‘hdf_write_string’: 
external/clearsilver/util/neo_err.h:88:69: error: expected expression before ‘)’ token 
    nerr_raisef(__PRETTY_FUNCTION__,__FILE__,__LINE__,e,f,__VA_ARGS__) 
                    ^
external/clearsilver/util/neo_hdf.c:1342:28: note: in expansion of macro ‘nerr_raise’ 
    if (*s == NULL) return nerr_raise(NERR_NOMEM, "Unable to allocate empty string"); 
          ^
external/clearsilver/util/neo_hash.c: In function ‘ne_hash_insert’: 
external/clearsilver/util/neo_err.h:88:69: error: expected expression before ‘)’ token 
    nerr_raisef(__PRETTY_FUNCTION__,__FILE__,__LINE__,e,f,__VA_ARGS__) 
                    ^
external/clearsilver/util/neo_hash.c:91:14: note: in expansion of macro ‘nerr_raise’ 
     return nerr_raise(NERR_NOMEM, "Unable to allocate NE_HASHNODE"); 
      ^
external/clearsilver/util/neo_hash.c: In function ‘_hash_resize’: 
external/clearsilver/util/neo_err.h:88:69: error: expected expression before ‘)’ token 
    nerr_raisef(__PRETTY_FUNCTION__,__FILE__,__LINE__,e,f,__VA_ARGS__) 
                    ^
external/clearsilver/util/neo_hash.c:229:12: note: in expansion of macro ‘nerr_raise’ 
    return nerr_raise(NERR_NOMEM, "Unable to allocate memory to resize NE_HASH"); 
      ^
external/clearsilver/util/neo_hdf.c: In function ‘hdf_read_file’: 
external/clearsilver/util/neo_err.h:88:69: error: expected expression before ‘)’ token 
    nerr_raisef(__PRETTY_FUNCTION__,__FILE__,__LINE__,e,f,__VA_ARGS__) 
                    ^
external/clearsilver/util/neo_hdf.c:1834:12: note: in expansion of macro ‘nerr_raise’ 
    return nerr_raise(NERR_ASSERT, "Can't read NULL file"); 
      ^
make: *** [out/host/linux-x86/obj/SHARED_LIBRARIES/libclearsilver-jni_intermediates/j_neo_util.o] Error 1 
make: *** Waiting for unfinished jobs.... 
make: *** [out/host/linux-x86/obj/SHARED_LIBRARIES/libneo_util_intermediates/neo_files.o] Error 1 
make: *** [out/host/linux-x86/obj/SHARED_LIBRARIES/libneo_util_intermediates/ulist.o] Error 1 
make: *** [out/host/linux-x86/obj/SHARED_LIBRARIES/libneo_util_intermediates/neo_str.o] Error 1 
make: *** [out/host/linux-x86/obj/SHARED_LIBRARIES/libneo_util_intermediates/ulocks.o] Error 1 
make: *** [out/host/linux-x86/obj/SHARED_LIBRARIES/libneo_util_intermediates/neo_hash.o] Error 1 
make: *** [out/host/linux-x86/obj/SHARED_LIBRARIES/libneo_util_intermediates/neo_hdf.o] Error 1 
Note: Some input files use unchecked or unsafe operations. 
Note: Recompile with -Xlint:unchecked for details. 
/bin/bash: jar: command not found 
make: *** [out/host/common/obj/JAVA_LIBRARIES/droiddoc_intermediates/javalib.jar] Error 127

来源

2017-03-23 BuvinJ

是整个错误？ Usualy g ++将添加更多信息（注释），即。关于这个宏被使用的地方。通常原因可能是缺少在宏调用中使用的定义（空）。 – marcinj

还有其他一些与此相关的错误。我会发布这些以防万一。谢谢！ – BuvinJ

查看修改后的帖子。 – BuvinJ

我现在面临的AOSP建立一个新的错误，并且看起来这将是一个可怕的无休止的战斗，除非我解决什么关于我的环境，配置或其他什么更基本。然而，我确实通过以下方式解决了这个特定的错误...

而不是运行整个AOSP化妆，我尝试编译只是一个文件，该文件是在这个宏哽咽道：

cd external/clearsilver/util 
gcc -I/[my full path...]/external/clearsilver neo_files.c

结果

In file included from neo_files.c:26:0: 
neo_files.c: In function ‘ne_listdir_fmatch’: 
neo_err.h:88:69: error: expected expression before ‘)’ token 
    nerr_raisef(__PRETTY_FUNCTION__,__FILE__,__LINE__,e,f,__VA_ARGS__) 
                    ^
neo_files.c:219:12: note: in expansion of macro ‘nerr_raise’ 
    return nerr_raise(NERR_ASSERT, "Invalid call to ne_listdir_fmatch");

然后，用约翰·布林的建议下，我使用GCC -E：

gcc -E -I/[my full path...]/external/clearsilver neo_files.c

部分的结果

... 
    if (files == 
# 218 "neo_files.c" 3 4 
       ((void *)0) 
# 218 "neo_files.c" 
       ) 
    return nerr_raisef(__PRETTY_FUNCTION__,"neo_files.c",219,NERR_ASSERT,"Invalid call to ne_listdir_fmatch",); 

...

如果你看看行的最后的宏观扩展到，你看：

... NERR_ASSERT,"Invalid call to ne_listdir_fmatch",);

注意逗号在参数列表的末尾！那就是问题所在！

解决方案？使用##__VAR_ARGRS_。在宏观。在##前缀消除了这种情形下导致你逗号：

nerr_raisef(__PRETTY_FUNCTION__,__FILE__,__LINE__,e,f,##__VA_ARGS__)

我重复，对于其他的宏在neo_err.h文件少数为好。于是，不仅可以我编译一个文件，但我可以为整个clearsliver UTIL国防部运行make：

make

结果

gcc -g -O2 -Wall -I.. -fPIC -o neo_err.o -c neo_err.c 
gcc -g -O2 -Wall -I.. -fPIC -o neo_files.o -c neo_files.c 
gcc -g -O2 -Wall -I.. -fPIC -o neo_misc.o -c neo_misc.c 
gcc -g -O2 -Wall -I.. -fPIC -o neo_rand.o -c neo_rand.c 
gcc -g -O2 -Wall -I.. -fPIC -o ulist.o -c ulist.c 
gcc -g -O2 -Wall -I.. -fPIC -o neo_hdf.o -c neo_hdf.c 
gcc -g -O2 -Wall -I.. -fPIC -o neo_str.o -c neo_str.c 
gcc -g -O2 -Wall -I.. -fPIC -o neo_date.o -c neo_date.c 
gcc -g -O2 -Wall -I.. -fPIC -o wildmat.o -c wildmat.c 
gcc -g -O2 -Wall -I.. -fPIC -o neo_hash.o -c neo_hash.c 
gcc -g -O2 -Wall -I.. -fPIC -o ulocks.o -c ulocks.c 
gcc -g -O2 -Wall -I.. -fPIC -o rcfs.o -c rcfs.c 
gcc -g -O2 -Wall -I.. -fPIC -o skiplist.o -c skiplist.c 
gcc -g -O2 -Wall -I.. -fPIC -o dict.o -c dict.c 
gcc -g -O2 -Wall -I.. -fPIC -o filter.o -c filter.c 
gcc -g -O2 -Wall -I.. -fPIC -o neo_net.o -c neo_net.c 
gcc -g -O2 -Wall -I.. -fPIC -o neo_server.o -c neo_server.c 
ar cr ../libs/libneo_utl.a neo_err.o neo_files.o neo_misc.o neo_rand.o ulist.o neo_hdf.o neo_str.o neo_date.o wildmat.o neo_hash.o ulocks.o rcfs.o skiplist.o dict.o filter.o neo_net.o neo_server.o 
ranlib ../libs/libneo_utl.a

成功！现在

，到下一个问题与AOSP噩梦......

来源

2017-03-23 19:26:51 BuvinJ

显然，这是我真正的答案：

https://source.android.com/source/known-issues.html#build-error-with-40x-and-earlier-on-ubuntu-1110

大厦IceCreamSandwich 4.0.x版（及以上版本）在Ubuntu 11.10 和更新版本上失败...可以降级到Ubuntu 10.04，或使用主分区，该分支可以在Ubuntu 11.10和更高版本上编译。

我正在使用其他人为显着定制的AOSP编写的源代码，并且只是在一个巨大的tarball中移交。我不能搞砸我正在使用的回购的哪个分支。显然，我没有选择，只能设置整个单独的操作系统。

哟！（或类似的东西...）

来源

2017-03-24 15:19:26 BuvinJ

C代码宏编译错误（AOSP：外部/ clearsilver/util的/ neo_err.h）

回答

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