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Merge "Better backwards compatibility for stat64."

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Elliott Hughes 2018-02-13 15:42:55 +00:00 committed by Gerrit Code Review
commit f99b7a34c8
4 changed files with 18 additions and 9 deletions
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1
libc/Android.bp
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@ -33,6 +33,7 @@ libc_common_src_files_32 = [
libc_common_flags = [
"-D_LIBC=1",
"-D__BIONIC_LP32_USE_STAT64",
"-Wall",
"-Wextra",
"-Wunused",

8
libc/include/ftw.h
View file

@ -56,11 +56,9 @@ struct FTW {
__BEGIN_DECLS
int ftw(const char* __dir_path, int (*__callback)(const char*, const struct stat*, int), int __max_fd_count) __INTRODUCED_IN(17);
int nftw(const char* __dir_path, int (*__callback)(const char*, const struct stat*, int, struct FTW*), int __max_fd_count, int __flags)
__INTRODUCED_IN(17);
int ftw64(const char* __dir_path, int (*__callback)(const char*, const struct stat64*, int), int __max_fd_count) __INTRODUCED_IN(21);
int nftw64(const char* __dir_path, int (*__callback)(const char*, const struct stat64*, int, struct FTW*), int __max_fd_count, int __flags)
__INTRODUCED_IN(21);
int nftw(const char* __dir_path, int (*__callback)(const char*, const struct stat*, int, struct FTW*), int __max_fd_count, int __flags) __INTRODUCED_IN(17);
int ftw64(const char* __dir_path, int (*__callback)(const char*, const struct stat64*, int), int __max_fd_count) __RENAME_STAT64(ftw, 17, 21);
int nftw64(const char* __dir_path, int (*__callback)(const char*, const struct stat64*, int, struct FTW*), int __max_fd_count, int __flags) __RENAME_STAT64(nftw, 17, 21);
__END_DECLS
#endif

10
libc/include/sys/cdefs.h
View file

@ -245,6 +245,16 @@
#define __RENAME_LDBL(rewrite,rewrite_api_level,regular_api_level) __RENAME(rewrite) __INTRODUCED_IN(rewrite_api_level)
#endif
/*
* On all architectures, `struct stat` == `struct stat64`, but LP32 didn't gain the *64 functions
* until API level 21.
*/
#if defined(__LP64__) || defined(__BIONIC_LP32_USE_STAT64)
#define __RENAME_STAT64(rewrite,rewrite_api_level,regular_api_level) __INTRODUCED_IN(regular_api_level)
#else
#define __RENAME_STAT64(rewrite,rewrite_api_level,regular_api_level) __RENAME(rewrite) __INTRODUCED_IN(rewrite_api_level)
#endif
/* glibc compatibility. */
#if defined(__LP64__)
#define __WORDSIZE 64

8
libc/include/sys/stat.h
View file

@ -156,13 +156,13 @@ int fchmod(int __fd, mode_t __mode);
int mkdir(const char* __path, mode_t __mode);
int fstat(int __fd, struct stat* __buf);
int fstat64(int __fd, struct stat64* __buf) __INTRODUCED_IN(21);
int fstat64(int __fd, struct stat64* __buf) __RENAME_STAT64(fstat, 3, 21);
int fstatat(int __dir_fd, const char* __path, struct stat* __buf, int __flags);
int fstatat64(int __dir_fd, const char* __path, struct stat64* __buf, int __flags) __INTRODUCED_IN(21);
int fstatat64(int __dir_fd, const char* __path, struct stat64* __buf, int __flags) __RENAME_STAT64(fstatat, 3, 21);
int lstat(const char* __path, struct stat* __buf);
int lstat64(const char* __path, struct stat64* __buf) __INTRODUCED_IN(21);
int lstat64(const char* __path, struct stat64* __buf) __RENAME_STAT64(lstat, 3, 21);
int stat(const char* __path, struct stat* __buf);
int stat64(const char* __path, struct stat64* __buf) __INTRODUCED_IN(21);
int stat64(const char* __path, struct stat64* __buf) __RENAME_STAT64(stat, 3, 21);
int mknod(const char* __path, mode_t __mode, dev_t __dev);
mode_t umask(mode_t __mask);