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-rw-r--r--libc/sysdeps/linux/common/Makefile.in3
-rw-r--r--libc/sysdeps/linux/common/bits/fcntl-linux.h34
-rw-r--r--libc/sysdeps/linux/common/bits/mman-shared.h2
-rw-r--r--libc/sysdeps/linux/common/bits/nan.h4
-rw-r--r--libc/sysdeps/linux/common/bits/stat.h4
-rw-r--r--libc/sysdeps/linux/common/clock_adjtime.c2
-rw-r--r--libc/sysdeps/linux/common/fstat64.c3
-rw-r--r--libc/sysdeps/linux/common/fstatat64.c3
-rw-r--r--libc/sysdeps/linux/common/getentropy.c45
-rw-r--r--libc/sysdeps/linux/common/getrandom.c3
-rw-r--r--libc/sysdeps/linux/common/lseek.c2
-rw-r--r--libc/sysdeps/linux/common/memfd_create.c13
-rw-r--r--libc/sysdeps/linux/common/process_vm_readv.c32
-rw-r--r--libc/sysdeps/linux/common/process_vm_writev.c32
-rw-r--r--libc/sysdeps/linux/common/sys/epoll.h14
-rw-r--r--libc/sysdeps/linux/common/sys/random.h22
16 files changed, 206 insertions, 12 deletions
diff --git a/libc/sysdeps/linux/common/Makefile.in b/libc/sysdeps/linux/common/Makefile.in
index 848bc1e4a..e0b280c33 100644
--- a/libc/sysdeps/linux/common/Makefile.in
+++ b/libc/sysdeps/linux/common/Makefile.in
@@ -30,6 +30,7 @@ CSRC-$(UCLIBC_LINUX_SPECIFIC) += \
inotify.c \
ioperm.c \
iopl.c \
+ memfd_create.c \
modify_ldt.c \
module.c \
name_to_handle_at.c \
@@ -39,6 +40,8 @@ CSRC-$(UCLIBC_LINUX_SPECIFIC) += \
ppoll.c \
prctl.c \
prlimit.c \
+ process_vm_readv.c \
+ process_vm_writev.c \
readahead.c \
reboot.c \
remap_file_pages.c \
diff --git a/libc/sysdeps/linux/common/bits/fcntl-linux.h b/libc/sysdeps/linux/common/bits/fcntl-linux.h
new file mode 100644
index 000000000..d0236fd8b
--- /dev/null
+++ b/libc/sysdeps/linux/common/bits/fcntl-linux.h
@@ -0,0 +1,34 @@
+/* O_*, F_*, FD_* bit values for Linux.
+ Copyright (C) 2001-2024 Free Software Foundation, Inc.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <https://www.gnu.org/licenses/>. */
+
+#ifndef _FCNTL_H
+# error "Never use <bits/fcntl-linux.h> directly; include <fcntl.h> instead."
+#endif
+
+#ifdef __USE_GNU
+/* Types of seals. */
+# define F_SEAL_SEAL 0x0001 /* Prevent further seals from being set. */
+# define F_SEAL_SHRINK 0x0002 /* Prevent file from shrinking. */
+# define F_SEAL_GROW 0x0004 /* Prevent file from growing. */
+# define F_SEAL_WRITE 0x0008 /* Prevent writes. */
+# define F_SEAL_FUTURE_WRITE 0x0010 /* Prevent future writes while
+ mapped. */
+# define F_SEAL_EXEC 0x0020 /* Prevent chmod modifying exec bits. */
+
+# define F_ADD_SEALS 1033 /* Add seals to file. */
+# define F_GET_SEALS 1034 /* Get seals for file. */
+#endif
diff --git a/libc/sysdeps/linux/common/bits/mman-shared.h b/libc/sysdeps/linux/common/bits/mman-shared.h
index 98c9e1d3c..c40ae2d1e 100644
--- a/libc/sysdeps/linux/common/bits/mman-shared.h
+++ b/libc/sysdeps/linux/common/bits/mman-shared.h
@@ -40,11 +40,9 @@
__BEGIN_DECLS
-#if 0
/* Create a new memory file descriptor. NAME is a name for debugging.
FLAGS is a combination of the MFD_* constants. */
int memfd_create (const char *__name, unsigned int __flags) __THROW;
-#endif
/* Lock pages from ADDR (inclusive) to ADDR + LENGTH (exclusive) into
memory. FLAGS is a combination of the MLOCK_* flags above. */
diff --git a/libc/sysdeps/linux/common/bits/nan.h b/libc/sysdeps/linux/common/bits/nan.h
index 00cb405f1..46cfb613f 100644
--- a/libc/sysdeps/linux/common/bits/nan.h
+++ b/libc/sysdeps/linux/common/bits/nan.h
@@ -25,7 +25,9 @@
#if __GNUC_PREREQ(3,3)
-# define NAN (__builtin_nanf (""))
+# ifndef NAN
+# define NAN (__builtin_nanf (""))
+# endif
#elif defined __GNUC__
diff --git a/libc/sysdeps/linux/common/bits/stat.h b/libc/sysdeps/linux/common/bits/stat.h
index 07c09f50a..fc76cc3e7 100644
--- a/libc/sysdeps/linux/common/bits/stat.h
+++ b/libc/sysdeps/linux/common/bits/stat.h
@@ -61,7 +61,7 @@ struct stat
#else
__blkcnt64_t st_blocks; /* Number 512-byte blocks allocated. */
#endif
-#ifdef __USE_MISC
+#if defined(__USE_MISC) || defined(__USE_XOPEN2K8)
/* Nanosecond resolution timestamps are stored in a format
equivalent to 'struct timespec'. This is the type used
whenever possible but the Unix namespace rules do not allow the
@@ -107,7 +107,7 @@ struct stat64
__blksize_t st_blksize; /* Optimal block size for I/O. */
__blkcnt64_t st_blocks; /* Number 512-byte blocks allocated. */
-#ifdef __USE_MISC
+#if defined(__USE_MISC) || defined(__USE_XOPEN2K8)
/* Nanosecond resolution timestamps are stored in a format
equivalent to 'struct timespec'. This is the type used
whenever possible but the Unix namespace rules do not allow the
diff --git a/libc/sysdeps/linux/common/clock_adjtime.c b/libc/sysdeps/linux/common/clock_adjtime.c
index 53f64e9d5..ada256ccd 100644
--- a/libc/sysdeps/linux/common/clock_adjtime.c
+++ b/libc/sysdeps/linux/common/clock_adjtime.c
@@ -15,5 +15,5 @@ _syscall2_64(int, clock_adjtime, clockid_t, clock_id, struct timex*, ntx)
#elif defined(__NR_clock_adjtime)
_syscall2(int, clock_adjtime, clockid_t, clock_id, struct timex*, ntx)
#else
-#error "clock_adjtime syscall is not defined!"
+#warning "clock_adjtime syscall is not defined!"
#endif
diff --git a/libc/sysdeps/linux/common/fstat64.c b/libc/sysdeps/linux/common/fstat64.c
index 359c22af6..121b21fc8 100644
--- a/libc/sysdeps/linux/common/fstat64.c
+++ b/libc/sysdeps/linux/common/fstat64.c
@@ -8,8 +8,9 @@
#include <_lfs_64.h>
#include <sys/syscall.h>
+#include <linux/version.h>
-#if defined(__NR_fstat64) && !defined(__UCLIBC_USE_TIME64__)
+#if defined(__NR_fstat64) && (!defined(__UCLIBC_USE_TIME64__) || LINUX_VERSION_CODE <= KERNEL_VERSION(5,1,0))
# include <unistd.h>
# include <sys/stat.h>
# include "xstatconv.h"
diff --git a/libc/sysdeps/linux/common/fstatat64.c b/libc/sysdeps/linux/common/fstatat64.c
index 16dbf9215..739e84081 100644
--- a/libc/sysdeps/linux/common/fstatat64.c
+++ b/libc/sysdeps/linux/common/fstatat64.c
@@ -9,6 +9,7 @@
#include <_lfs_64.h>
#include <bits/wordsize.h>
#include <sys/syscall.h>
+#include <linux/version.h>
#if defined __mips__
# include <sgidefs.h>
@@ -23,7 +24,7 @@
# define __NR_fstatat64 __NR_newfstatat
#endif
-#if defined(__NR_fstatat64) && !defined(__UCLIBC_USE_TIME64__)
+#if defined(__NR_fstatat64) && (!defined(__UCLIBC_USE_TIME64__) || LINUX_VERSION_CODE <= KERNEL_VERSION(5,1,0))
# include <sys/stat.h>
# include "xstatconv.h"
int fstatat64(int fd, const char *file, struct stat64 *buf, int flag)
diff --git a/libc/sysdeps/linux/common/getentropy.c b/libc/sysdeps/linux/common/getentropy.c
new file mode 100644
index 000000000..55bd48a12
--- /dev/null
+++ b/libc/sysdeps/linux/common/getentropy.c
@@ -0,0 +1,45 @@
+/*
+ * getentropy() by wrapping getrandom(), for µClibc-ng
+ *
+ * © 2025 mirabilos Ⓕ CC0 or MirBSD or GNU LGPLv2
+ *
+ * Note: may be a thread cancellation point, unlike the
+ * implementations in glibc and musl libc. Should this
+ * ever become a concern, it will need patching.
+ */
+
+#define _DEFAULT_SOURCE
+#include <errno.h>
+#include <unistd.h>
+#include <sys/random.h>
+
+#ifdef __NR_getrandom
+int
+getentropy(void *__buf, size_t __len)
+{
+ ssize_t n;
+
+ if (__len > 256U) {
+ errno = EIO;
+ return (-1);
+ }
+
+ again:
+ if ((n = getrandom(__buf, __len, 0)) == -1)
+ switch (errno) {
+ case EAGAIN: /* should not happen but better safe than sorry */
+ case EINTR:
+ goto again;
+ default:
+ errno = EIO;
+ /* FALLTHROUGH */
+ case EFAULT:
+ case ENOSYS:
+ return (-1);
+ }
+ if ((size_t)n != __len)
+ /* also shouldn’t happen (safety net) */
+ goto again;
+ return (0);
+}
+#endif
diff --git a/libc/sysdeps/linux/common/getrandom.c b/libc/sysdeps/linux/common/getrandom.c
index bb9841463..1db1663b9 100644
--- a/libc/sysdeps/linux/common/getrandom.c
+++ b/libc/sysdeps/linux/common/getrandom.c
@@ -8,6 +8,7 @@
#include <sys/syscall.h>
#include <sys/random.h>
+
#ifdef __NR_getrandom
-_syscall3(int, getrandom, void *, buf, size_t, buflen, unsigned int, flags)
+_syscall3(ssize_t, getrandom, void *, buf, size_t, buflen, unsigned int, flags)
#endif
diff --git a/libc/sysdeps/linux/common/lseek.c b/libc/sysdeps/linux/common/lseek.c
index 80d69318a..0fc99efae 100644
--- a/libc/sysdeps/linux/common/lseek.c
+++ b/libc/sysdeps/linux/common/lseek.c
@@ -40,6 +40,8 @@ off_t __NC(lseek)(int fd, off_t offset attribute_unused, int whence)
case SEEK_SET:
case SEEK_CUR:
case SEEK_END:
+ case SEEK_DATA:
+ case SEEK_HOLE:
break;
default:
__set_errno(EINVAL);
diff --git a/libc/sysdeps/linux/common/memfd_create.c b/libc/sysdeps/linux/common/memfd_create.c
new file mode 100644
index 000000000..7165f3278
--- /dev/null
+++ b/libc/sysdeps/linux/common/memfd_create.c
@@ -0,0 +1,13 @@
+/*
+ * memfd_create() for uClibc-ng
+ *
+ * Copyright (C) 2024 Waldemar Brodkorb <wbx@uclibc-ng.org>
+ *
+ * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
+ */
+
+#include <sys/syscall.h>
+#include <sys/mman.h>
+#if defined(__NR_memfd_create)
+_syscall2(int, memfd_create, const char *, name, unsigned int, flags)
+#endif
diff --git a/libc/sysdeps/linux/common/process_vm_readv.c b/libc/sysdeps/linux/common/process_vm_readv.c
new file mode 100644
index 000000000..b69c1c97a
--- /dev/null
+++ b/libc/sysdeps/linux/common/process_vm_readv.c
@@ -0,0 +1,32 @@
+/* process_vm_readv - Linux specific syscall.
+ Copyright (C) 2020-2024 Free Software Foundation, Inc.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <https://www.gnu.org/licenses/>. */
+
+#include <sys/uio.h>
+#include <sys/syscall.h>
+#include <unistd.h>
+
+#ifdef __NR_process_vm_readv
+ssize_t
+process_vm_readv (pid_t pid, const struct iovec *local_iov,
+ unsigned long int liovcnt,
+ const struct iovec *remote_iov,
+ unsigned long int riovcnt, unsigned long int flags)
+{
+ return INLINE_SYSCALL (process_vm_readv, 6, pid, local_iov,
+ liovcnt, remote_iov, riovcnt, flags);
+}
+#endif
diff --git a/libc/sysdeps/linux/common/process_vm_writev.c b/libc/sysdeps/linux/common/process_vm_writev.c
new file mode 100644
index 000000000..e22817a8d
--- /dev/null
+++ b/libc/sysdeps/linux/common/process_vm_writev.c
@@ -0,0 +1,32 @@
+/* process_vm_writev - Linux specific syscall.
+ Copyright (C) 2020-2024 Free Software Foundation, Inc.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <https://www.gnu.org/licenses/>. */
+
+#include <sys/uio.h>
+#include <sys/syscall.h>
+#include <unistd.h>
+
+#ifdef __NR_process_vm_writev
+ssize_t
+process_vm_writev (pid_t pid, const struct iovec *local_iov,
+ unsigned long int liovcnt,
+ const struct iovec *remote_iov,
+ unsigned long int riovcnt, unsigned long int flags)
+{
+ return INLINE_SYSCALL (process_vm_writev, 6, pid, local_iov,
+ liovcnt, remote_iov, riovcnt, flags);
+}
+#endif
diff --git a/libc/sysdeps/linux/common/sys/epoll.h b/libc/sysdeps/linux/common/sys/epoll.h
index 5551bed0d..5138d77a9 100644
--- a/libc/sysdeps/linux/common/sys/epoll.h
+++ b/libc/sysdeps/linux/common/sys/epoll.h
@@ -19,6 +19,7 @@
#define _SYS_EPOLL_H 1
#include <stdint.h>
+#include <sys/ioctl.h>
#include <sys/types.h>
/* Get __sigset_t. */
@@ -87,6 +88,19 @@ struct epoll_event
epoll_data_t data; /* User data variable */
} __EPOLL_PACKED;
+struct epoll_params
+{
+ uint32_t busy_poll_usecs;
+ uint16_t busy_poll_budget;
+ uint8_t prefer_busy_poll;
+
+ /* pad the struct to a multiple of 64bits */
+ uint8_t __pad;
+};
+
+#define EPOLL_IOC_TYPE 0x8A
+#define EPIOCSPARAMS _IOW(EPOLL_IOC_TYPE, 0x01, struct epoll_params)
+#define EPIOCGPARAMS _IOR(EPOLL_IOC_TYPE, 0x02, struct epoll_params)
__BEGIN_DECLS
diff --git a/libc/sysdeps/linux/common/sys/random.h b/libc/sysdeps/linux/common/sys/random.h
index 3d12744ad..c3d9cf575 100644
--- a/libc/sysdeps/linux/common/sys/random.h
+++ b/libc/sysdeps/linux/common/sys/random.h
@@ -4,12 +4,20 @@
#ifndef _SYS_RANDOM_H
#define _SYS_RANDOM_H 1
+
#include <features.h>
#include <stddef.h>
__BEGIN_DECLS
-#if defined __UCLIBC_LINUX_SPECIFIC__ && defined __USE_GNU
+#include <bits/types.h>
+
+#ifndef __ssize_t_defined
+typedef __ssize_t ssize_t;
+# define __ssize_t_defined
+#endif
+
+#if defined __UCLIBC_LINUX_SPECIFIC__
# if 0 /*def __ASSUME_GETRANDOM_SYSCALL */
# include <linux/random.h>
# else
@@ -20,13 +28,21 @@ __BEGIN_DECLS
*
* GRND_NONBLOCK Don't block and return EAGAIN instead
* GRND_RANDOM Use the /dev/random pool instead of /dev/urandom
+ * GRND_INSECURE Write random data that may not be cryptographically secure.
*/
# define GRND_NONBLOCK 0x0001
# define GRND_RANDOM 0x0002
+# define GRND_INSECURE 0x0004
# endif
-/* FIXME: aren't there a couple of __restrict and const missing ? */
-extern int getrandom(void *__buf, size_t count, unsigned int flags)
+extern ssize_t getrandom(void *__buf, size_t count, unsigned int flags)
__nonnull ((1)) __wur;
+
+/* OpenBSD-compatible access to random bytes.
+ May be a cancellation point here, unlike in glibc/musl. */
+# ifndef __getentropy_defined
+extern int getentropy(void *__buf, size_t __len) __nonnull ((1)) __wur;
+# define __getentropy_defined
+# endif
#endif
__END_DECLS
generated by cgit v1.2.3 (git 2.25.1) at 2025-07-01 14:10:16 +0000