RFA: [PATCH] Hide internal __ioctl function [BZ #18822]
Commit Message
Hide internal __ioctl function to allow direct access within libc.so and
libc.a without using GOT nor PLT.
__GI___ioctl is defined when sysdeps/unix/syscalls.list is used to
generate ioctl. Otherwise libc_hidden_def is needed explicitly.
Could someone please test it on hurd, aarch64, mips/mips64/n64, powerpc
and tilegx.
Thanks.
H.J.
---
[BZ #18822]
* include/sys/ioctl.h (__ioctl): Add libc_hidden_proto.
* misc/ioctl.c (__ioctl): Add libc_hidden_def.
* sysdeps/mach/hurd/ioctl.c (__ioctl): Likewise.
* sysdeps/unix/sysv/linux/aarch64/ioctl.S (__ioctl): Likewise.
* sysdeps/unix/sysv/linux/mips/mips64/n64/ioctl.S (__ioctl):
Likewise.
* sysdeps/unix/sysv/linux/powerpc/ioctl.c (__ioctl): Likewise.
* sysdeps/unix/sysv/linux/tile/tilegx/ioctl.S (__ioctl): Likewise.
---
include/sys/ioctl.h | 1 +
misc/ioctl.c | 1 +
sysdeps/mach/hurd/ioctl.c | 1 +
sysdeps/unix/sysv/linux/aarch64/ioctl.S | 1 +
sysdeps/unix/sysv/linux/mips/mips64/n64/ioctl.S | 1 +
sysdeps/unix/sysv/linux/powerpc/ioctl.c | 1 +
sysdeps/unix/sysv/linux/tile/tilegx/ioctl.S | 1 +
7 files changed, 7 insertions(+)
@@ -5,6 +5,7 @@
/* Now define the internal interfaces. */
extern int __ioctl (int __fd, unsigned long int __request, ...);
+libc_hidden_proto (__ioctl)
# endif /* !_ISOMAC */
#endif
@@ -28,4 +28,5 @@ __ioctl (int fd, unsigned long int request, ...)
}
stub_warning (ioctl)
+libc_hidden_def (__ioctl)
weak_alias (__ioctl, ioctl)
@@ -323,4 +323,5 @@ __ioctl (int fd, unsigned long int request, ...)
}
}
+libc_hidden_def (__ioctl)
weak_alias (__ioctl, ioctl)
@@ -28,4 +28,5 @@ ENTRY(__ioctl)
ret
PSEUDO_END (__ioctl)
+libc_hidden_def (__ioctl)
weak_alias (__ioctl, ioctl)
@@ -38,4 +38,5 @@ L(error):
PSEUDO_END (__ioctl)
+libc_hidden_def (__ioctl)
weak_alias (__ioctl, ioctl)
@@ -61,4 +61,5 @@ __ioctl (int fd, unsigned long int request, ...)
return result;
}
+libc_hidden_def (__ioctl)
weak_alias (__ioctl, ioctl)
@@ -38,4 +38,5 @@ ENTRY (__ioctl)
BNEZ r1, 0f
jrp lr
PSEUDO_END (__ioctl)
+libc_hidden_def (__ioctl)
weak_alias (__ioctl, ioctl)