summaryrefslogtreecommitdiff
path: root/libc/sysdeps/linux/csky/bits
diff options
context:
space:
mode:
Diffstat (limited to 'libc/sysdeps/linux/csky/bits')
-rw-r--r--libc/sysdeps/linux/csky/bits/fcntl.h9
-rw-r--r--libc/sysdeps/linux/csky/bits/fenv.h123
-rw-r--r--libc/sysdeps/linux/csky/bits/kernel_stat.h4
-rw-r--r--libc/sysdeps/linux/csky/bits/shm.h18
-rw-r--r--libc/sysdeps/linux/csky/bits/uClibc_arch_features.h3
5 files changed, 101 insertions, 56 deletions
diff --git a/libc/sysdeps/linux/csky/bits/fcntl.h b/libc/sysdeps/linux/csky/bits/fcntl.h
index de8a8a0bc..25f4491ba 100644
--- a/libc/sysdeps/linux/csky/bits/fcntl.h
+++ b/libc/sysdeps/linux/csky/bits/fcntl.h
@@ -42,6 +42,7 @@
# define O_DIRECT 00040000 /* direct disk access hint */
# define O_NOATIME 01000000 /* Do not set atime. */
# define O_PATH 010000000 /* Resolve pathname but do not open file. */
+# define O_TMPFILE 020200000 /* Atomically create nameless file. */
#endif
/* For now Linux has synchronisity options for data and read operations.
@@ -89,11 +90,13 @@
# define F_SETLEASE 1024 /* Set a lease. */
# define F_GETLEASE 1025 /* Enquire what lease is active. */
# define F_NOTIFY 1026 /* Request notfications on a directory. */
-# define F_DUPFD_CLOEXEC 1030 /* Duplicate file descriptor with
- close-on-exit set on new fd. */
# define F_SETPIPE_SZ 1031 /* Set pipe page size array. */
# define F_GETPIPE_SZ 1032 /* Get pipe page size array. */
#endif
+#if defined __USE_XOPEN2K8 || defined __USE_GNU
+# define F_DUPFD_CLOEXEC 1030 /* Duplicate file descriptor with
+ close-on-exit set on new fd. */
+#endif
/* For F_[GET|SET]FD. */
#define FD_CLOEXEC 1 /* actually anything with low bit set goes */
@@ -229,3 +232,5 @@ extern ssize_t tee (int __fdin, int __fdout, size_t __len,
#endif
__END_DECLS
+/* Include generic Linux declarations. */
+#include <bits/fcntl-linux.h>
diff --git a/libc/sysdeps/linux/csky/bits/fenv.h b/libc/sysdeps/linux/csky/bits/fenv.h
index 3359e1f8e..1428f385a 100644
--- a/libc/sysdeps/linux/csky/bits/fenv.h
+++ b/libc/sysdeps/linux/csky/bits/fenv.h
@@ -1,65 +1,108 @@
-/*
- * Copyright (C) 2017 Hangzhou C-SKY Microsystems co.,ltd.
- *
- * Licensed under the LGPL v2.1 or later, see the file COPYING.LIB
- * in this tarball.
- */
+/* Floating point environment. C-SKY version.
+ Copyright (C) 2018-2025 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 _FENV_H
# error "Never use <bits/fenv.h> directly; include <fenv.h> instead."
#endif
-/* Define bits representing the exception. We use the bit positions of
- the appropriate bits in the FPSR Accrued Exception Byte. */
+#ifdef __csky_hard_float__
+/* Define bits representing the exception. We use the bit positions
+ of the appropriate bits in the FPU control word. */
enum
{
- FE_INEXACT = 1 << 3,
-#define FE_INEXACT FE_INEXACT
- FE_DIVBYZERO = 1 << 4,
-#define FE_DIVBYZERO FE_DIVBYZERO
- FE_UNDERFLOW = 1 << 5,
-#define FE_UNDERFLOW FE_UNDERFLOW
- FE_OVERFLOW = 1 << 6,
-#define FE_OVERFLOW FE_OVERFLOW
- FE_INVALID = 1 << 7
-#define FE_INVALID FE_INVALID
+ FE_INVALID =
+#define FE_INVALID 0x01
+ FE_INVALID,
+ FE_DIVBYZERO =
+#define FE_DIVBYZERO 0x02
+ FE_DIVBYZERO,
+ FE_OVERFLOW =
+#define FE_OVERFLOW 0x04
+ FE_OVERFLOW,
+ FE_UNDERFLOW =
+#define FE_UNDERFLOW 0x08
+ FE_UNDERFLOW,
+ FE_INEXACT =
+#define FE_INEXACT 0x10
+ FE_INEXACT,
+ __FE_DENORMAL = 0x20
};
#define FE_ALL_EXCEPT \
(FE_INEXACT | FE_DIVBYZERO | FE_UNDERFLOW | FE_OVERFLOW | FE_INVALID)
-/* The csky FPU supports all of the four defined rounding modes. We use
- the bit positions in the FPCR Mode Control Byte as the values for the
- appropriate macros. */
+/* The C-SKY FPU supports all of the four defined rounding modes. We
+ use again the bit positions in the FPU control word as the values
+ for the appropriate macros. */
+enum
+ {
+ FE_TONEAREST =
+#define FE_TONEAREST (0x0 << 24)
+ FE_TONEAREST,
+ FE_TOWARDZERO =
+#define FE_TOWARDZERO (0x1 << 24)
+ FE_TOWARDZERO,
+ FE_UPWARD =
+#define FE_UPWARD (0x2 << 24)
+ FE_UPWARD,
+ FE_DOWNWARD =
+#define FE_DOWNWARD (0x3 << 24)
+ FE_DOWNWARD,
+ __FE_ROUND_MASK = (0x3 << 24)
+ };
+
+#else
+
+/* In the soft-float case, only rounding to nearest is supported, with
+ no exceptions. */
+
enum
{
- FE_TONEAREST = 0,
-#define FE_TONEAREST FE_TONEAREST
- FE_TOWARDZERO = 1 << 4,
-#define FE_TOWARDZERO FE_TOWARDZERO
- FE_DOWNWARD = 2 << 4,
-#define FE_DOWNWARD FE_DOWNWARD
- FE_UPWARD = 3 << 4
-#define FE_UPWARD FE_UPWARD
+ __FE_UNDEFINED = -1,
+
+ FE_TONEAREST =
+# define FE_TONEAREST 0x0
+ FE_TONEAREST
};
+# define FE_ALL_EXCEPT 0
+
+#endif
+
/* Type representing exception flags. */
typedef unsigned int fexcept_t;
-/* Type representing floating-point environment. This structure
- corresponds to the layout of the block written by `fmovem'. */
+/* Type representing floating-point environment. */
typedef struct
- {
- unsigned int __control_register;
- unsigned int __status_register;
- unsigned int __instruction_address;
- }
-fenv_t;
+{
+ unsigned int __fpcr;
+ unsigned int __fpsr;
+} fenv_t;
/* If the default argument is used we use this value. */
-#define FE_DFL_ENV ((__const fenv_t *) -1)
+#define FE_DFL_ENV ((const fenv_t *) -1)
-#ifdef __USE_GNU
+#if defined __USE_GNU && defined __csky_hard_float__
/* Floating-point environment where none of the exceptions are masked. */
-# define FE_NOMASK_ENV ((__const fenv_t *) -2)
+# define FE_NOMASK_ENV ((const fenv_t *) -2)
#endif
+
+/* Type representing floating-point control modes. */
+typedef unsigned int femode_t;
+
+/* Default floating-point control modes. */
+# define FE_DFL_MODE ((const femode_t *) -1L)
diff --git a/libc/sysdeps/linux/csky/bits/kernel_stat.h b/libc/sysdeps/linux/csky/bits/kernel_stat.h
index dae77fd02..617632f48 100644
--- a/libc/sysdeps/linux/csky/bits/kernel_stat.h
+++ b/libc/sysdeps/linux/csky/bits/kernel_stat.h
@@ -34,8 +34,8 @@ struct kernel_stat {
struct timespec st_atim;
struct timespec st_mtim;
struct timespec st_ctim;
- unsigned long __unused4;
- unsigned long __unused5;
+ unsigned long __uclibc_unused4;
+ unsigned long __uclibc_unused5;
};
struct kernel_stat64 {
diff --git a/libc/sysdeps/linux/csky/bits/shm.h b/libc/sysdeps/linux/csky/bits/shm.h
index dced1321e..d464318ec 100644
--- a/libc/sysdeps/linux/csky/bits/shm.h
+++ b/libc/sysdeps/linux/csky/bits/shm.h
@@ -40,16 +40,16 @@ struct shmid_ds
struct ipc_perm shm_perm; /* operation permission struct */
size_t shm_segsz; /* size of segment in bytes */
__time_t shm_atime; /* time of last shmat() */
- unsigned long int __unused1;
+ unsigned long int __uclibc_unused1;
__time_t shm_dtime; /* time of last shmdt() */
- unsigned long int __unused2;
+ unsigned long int __uclibc_unused2;
__time_t shm_ctime; /* time of last change by shmctl() */
- unsigned long int __unused3;
+ unsigned long int __uclibc_unused3;
__pid_t shm_cpid; /* pid of creator */
__pid_t shm_lpid; /* pid of last shmop */
shmatt_t shm_nattch; /* number of current attaches */
- unsigned long int __unused4;
- unsigned long int __unused5;
+ unsigned long int __uclibc_unused4;
+ unsigned long int __uclibc_unused5;
};
#ifdef __USE_MISC
@@ -71,10 +71,10 @@ struct shminfo
unsigned long int shmmni;
unsigned long int shmseg;
unsigned long int shmall;
- unsigned long int __unused1;
- unsigned long int __unused2;
- unsigned long int __unused3;
- unsigned long int __unused4;
+ unsigned long int __uclibc_unused1;
+ unsigned long int __uclibc_unused2;
+ unsigned long int __uclibc_unused3;
+ unsigned long int __uclibc_unused4;
};
struct shm_info
diff --git a/libc/sysdeps/linux/csky/bits/uClibc_arch_features.h b/libc/sysdeps/linux/csky/bits/uClibc_arch_features.h
index 3f5dab80c..1b866cb90 100644
--- a/libc/sysdeps/linux/csky/bits/uClibc_arch_features.h
+++ b/libc/sysdeps/linux/csky/bits/uClibc_arch_features.h
@@ -17,9 +17,6 @@
/* can your target use syscall6() for mmap ? */
#undef __UCLIBC_MMAP_HAS_6_ARGS__
-/* does your target use statx */
-#define __UCLIBC_HAVE_STATX__
-
#ifdef __CSKYABIV2__
#undef __UCLIBC_SYSCALL_ALIGN_64BIT__
#else