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| author | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2016-06-30 16:34:18 -0300 |
|---|---|---|
| committer | Adhemerval Zanella <adhemerval.zanella@linaro.com> | 2016-09-26 08:47:13 -0700 |
| commit | e33a23fbe8c2dba04fe05678c584d3efcb6c9951 (patch) | |
| tree | 9c166167d4881527abbed9f2d8609c9116ee7cd3 /libio/memstream.c | |
| parent | bb8081f57f23a3e1b28b1b7104f24d17da9a3d82 (diff) | |
| download | glibc-e33a23fbe8c2dba04fe05678c584d3efcb6c9951.tar.gz glibc-e33a23fbe8c2dba04fe05678c584d3efcb6c9951.tar.xz glibc-e33a23fbe8c2dba04fe05678c584d3efcb6c9951.zip | |
Add INTERNAL_SYSCALL_CALL
This patch adds two new macros for internal and inline syscall to use
within GLIBC: INTERNAL_SYSCALL_CALL and INLINE_SYSCALL_CALL. They are
similar to the old INTERNAL_SYSCALL and INLINE_SYSCALL with the difference
the new macros accept a variable argument call and do not require to pass
the expected argument size.
The advantage is it is possible to use variable argument macros like
SYSCALL_LL{64} without the need to also handle the argument size. So
for an ABI where SYSCALL_LL might split the argument in high and low
parts, instead of:
INTERNAL_SYSCALL_DECL (err);
#if ...
INTERNAL_SYSCALL (syscall, err, 2, SYSCALL_LL (len));
#else
INTERNAL_SYSCALL (syscall, err, 1, SYSCALL_LL (len));
#endif
It will be just:
INTERNAL_SYSCALL_CALL (syscall, err, SYSCALL_LL (len));
The INLINE_SYSCALL_CALL follows the same semanthic regarding the argument
and is similar to INLINE_SYSCALL regarding setting errno.
Checked with a build for x86_64, i386, aach64, armhf, powerpc64le, powerpc32,
and mips32. No code generation changed.
* sysdeps/unix/sysdep.h (__INTERNAL_SYSCALL0): New macro.
(__INTERNAL_SYSCALL1): Likewise.
(__INTERNAL_SYSCALL2): Likewise.
(__INTERNAL_SYSCALL3): Likewise.
(__INTERNAL_SYSCALL4): Likewise.
(__INTERNAL_SYSCALL5): Likewise.
(__INTERNAL_SYSCALL6): Likewise.
(__INTERNAL_SYSCALL7): Likewise.
(__INTERNAL_SYSCALL_NARGS_X): Likewise.
(__INTERNAL_SYSCALL_NARGS): Likewise.
(__INTERNAL_SYSCALL_DISP): Likewise.
(INTERNAL_SYSCALL_CALL): Likewise.
(__SYSCALL0): Rename to __INLINE_SYSCALL0.
(__SYSCALL1): Rename to __INLINE_SYSCALL1.
(__SYSCALL2): Rename to __INLINE_SYSCALL2.
(__SYSCALL3): Rename to __INLINE_SYSCALL3.
(__SYSCALL4): Rename to __INLINE_SYSCALL4.
(__SYSCALL5): Rename to __INLINE_SYSCALL5.
(__SYSCALL6): Rename to __INLINE_SYSCALL6.
(__SYSCALL7): Rename to __INLINE_SYSCALL7.
(__SYSCALL_NARGS_X): Rename to __INLINE_SYSCALL_NARGS_X.
(__SYSCALL_NARGS): Rename to __INLINE_SYSCALL_NARGS.
(__SYSCALL_DISP): Rename to __INLINE_SYSCALL_DISP.
(__SYSCALL_CALL): Rename to INLINE_SYSCALL_CALL.
(SYSCALL_CANCEL): Replace __SYSCALL_CALL with INLINE_SYSCALL_CALL.
Diffstat (limited to 'libio/memstream.c')
0 files changed, 0 insertions, 0 deletions