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hurd: Fix local PLT

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* include/sys/random.h (__getrandom): Add hidden prototype.
* stdlib/getrandom.c (getrandom): Rename to hidden definition __getrandom.
Add weak alias.
* sysdeps/mach/hurd/getrandom.c (getrandom): Likewise.
* sysdeps/unix/sysv/linux/getrandom.c (getrandom): Likewise.
* sysdeps/mach/hurd/getentropy.c (getentropy): Use __getrandom instead of
getrandom.
This commit is contained in:
Samuel Thibault 2019-12-13 10:10:59 +01:00
parent f7649d5780
commit 8eaf34eda2
5 changed files with 23 additions and 6 deletions
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10
include/sys/random.h
View File

@ -1 +1,11 @@
#ifndef _SYS_RANDOM_H
#include <stdlib/sys/random.h>
# ifndef _ISOMAC
extern ssize_t __getrandom (void *__buffer, size_t __length,
unsigned int __flags) __wur;
libc_hidden_proto (__getrandom)
# endif /* !_ISOMAC */
#endif

6
stdlib/getrandom.c
View File

@ -22,10 +22,12 @@
/* Write up to LENGTH bytes of randomness starting at BUFFER.
Return the number of bytes written, or -1 on error. */
ssize_t
getrandom (void *buffer, size_t length, unsigned int flags)
__getrandom (void *buffer, size_t length, unsigned int flags)
{
__set_errno (ENOSYS);
return -1;
}
stub_warning (getrandom)
libc_hidden_def (__getrandom)
weak_alias (__getrandom, getrandom)

2
sysdeps/mach/hurd/getentropy.c
View File

@ -41,7 +41,7 @@ getentropy (void *buffer, size_t length)
while (buffer < end)
{
/* NB: No cancellation point. */
ssize_t bytes = getrandom (buffer, end - buffer, 0);
ssize_t bytes = __getrandom (buffer, end - buffer, 0);
if (bytes < 0)
{
if (errno == EINTR)

5
sysdeps/mach/hurd/getrandom.c
View File

@ -24,7 +24,7 @@
/* Write up to LENGTH bytes of randomness starting at BUFFER.
Return the number of bytes written, or -1 on error. */
ssize_t
getrandom (void *buffer, size_t length, unsigned int flags)
__getrandom (void *buffer, size_t length, unsigned int flags)
{
const char *random_source = "/dev/urandom";
size_t amount_read;
@ -41,3 +41,6 @@ getrandom (void *buffer, size_t length, unsigned int flags)
__close_nocancel_nostatus(fd);
return amount_read;
}
libc_hidden_def (__getrandom)
weak_alias (__getrandom, getrandom)

6
sysdeps/unix/sysv/linux/getrandom.c
View File

@ -25,7 +25,7 @@
/* Write up to LENGTH bytes of randomness starting at BUFFER.
Return the number of bytes written, or -1 on error. */
ssize_t
getrandom (void *buffer, size_t length, unsigned int flags)
__getrandom (void *buffer, size_t length, unsigned int flags)
{
return SYSCALL_CANCEL (getrandom, buffer, length, flags);
}
@ -33,7 +33,7 @@ getrandom (void *buffer, size_t length, unsigned int flags)
/* Always provide a definition, even if the kernel headers lack the
system call number. */
ssize_t
getrandom (void *buffer, size_t length, unsigned int flags)
__getrandom (void *buffer, size_t length, unsigned int flags)
{
/* Ideally, we would add a cancellation point here, but we currently
cannot do so inside libc. */
@ -41,3 +41,5 @@ getrandom (void *buffer, size_t length, unsigned int flags)
return -1;
}
#endif
libc_hidden_def (__getrandom)
weak_alias (__getrandom, getrandom)