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Implement _FILE_OFFSET_BITS (mostly).

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I still don't think we can make stdio's fseeko and ftello work, but we can
have everything else, and very few programs use fseeko/ftello (and they can
just refrain from using _FILE_OFFSET_BITS and be no worse off than they are
today).

Bug: 11865851
Change-Id: Ic3cb409aae6713f4b345de954bcc4241fcd969ec
This commit is contained in:
Elliott Hughes
2015-02-06 22:28:49 -08:00
parent d687905f11
commit 68dc20d411
7 changed files with 65 additions and 24 deletions
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25
libc/include/unistd.h
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@@ -146,22 +146,14 @@ extern int chown(const char *, uid_t, gid_t);
extern int fchown(int, uid_t, gid_t);
extern int fchownat(int, const char*, uid_t, gid_t, int);
extern int lchown(const char *, uid_t, gid_t);
extern int truncate(const char *, off_t);
extern int truncate64(const char *, off64_t);
extern char *getcwd(char *, size_t);
extern int sync(void);
extern int close(int);
extern off_t lseek(int, off_t, int);
extern off64_t lseek64(int, off64_t, int);
extern ssize_t read(int, void *, size_t);
extern ssize_t write(int, const void *, size_t);
extern ssize_t pread(int, void *, size_t, off_t);
extern ssize_t pread64(int, void *, size_t, off64_t);
extern ssize_t pwrite(int, const void *, size_t, off_t);
extern ssize_t pwrite64(int, const void *, size_t, off64_t);
extern int dup(int);
extern int dup2(int, int);
@@ -171,7 +163,24 @@ extern int ioctl(int, int, ...);
extern int flock(int, int);
extern int fsync(int);
extern int fdatasync(int);
#if defined(__USE_FILE_OFFSET64)
extern int truncate(const char *, off_t) __RENAME(truncate64);
extern off_t lseek(int, off_t, int) __RENAME(lseek64);
extern ssize_t pread(int, void *, size_t, off_t) __RENAME(pread64);
extern ssize_t pwrite(int, const void *, size_t, off_t) __RENAME(pwrite64);
extern int ftruncate(int, off_t) __RENAME(ftruncate64);
#else
extern int truncate(const char *, off_t);
extern off_t lseek(int, off_t, int);
extern ssize_t pread(int, void *, size_t, off_t);
extern ssize_t pwrite(int, const void *, size_t, off_t);
extern int ftruncate(int, off_t);
#endif
extern int truncate64(const char *, off64_t);
extern off64_t lseek64(int, off64_t, int);
extern ssize_t pread64(int, void *, size_t, off64_t);
extern ssize_t pwrite64(int, const void *, size_t, off64_t);
extern int ftruncate64(int, off64_t);
extern int pause(void);