diff options
Diffstat (limited to 'libc/sysdeps/linux/kvx/bits')
| -rw-r--r-- | libc/sysdeps/linux/kvx/bits/atomic.h | 212 | ||||
| -rw-r--r-- | libc/sysdeps/linux/kvx/bits/fcntl.h | 3 | ||||
| -rw-r--r-- | libc/sysdeps/linux/kvx/bits/kernel_types.h | 2 | ||||
| -rw-r--r-- | libc/sysdeps/linux/kvx/bits/shm.h | 87 | ||||
| -rw-r--r-- | libc/sysdeps/linux/kvx/bits/stat.h | 145 | ||||
| -rw-r--r-- | libc/sysdeps/linux/kvx/bits/uClibc_arch_features.h | 3 |
6 files changed, 373 insertions, 79 deletions
diff --git a/libc/sysdeps/linux/kvx/bits/atomic.h b/libc/sysdeps/linux/kvx/bits/atomic.h index 3c423e9ba..6e81e6704 100644 --- a/libc/sysdeps/linux/kvx/bits/atomic.h +++ b/libc/sysdeps/linux/kvx/bits/atomic.h @@ -1,6 +1,7 @@ -/* Copyright (C) 2010-2012 Free Software Foundation, Inc. +/* Copyright (C) 2003-2017 Free Software Foundation, Inc. + Copyright (C) 2023 Kalray Inc. + This file is part of the GNU C Library. - Contributed by Maxim Kuvyrkov <maxim@codesourcery.com>, 2010. The GNU C Library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public @@ -16,10 +17,15 @@ License along with the GNU C Library. If not, see <http://www.gnu.org/licenses/>. */ +/* Mostly copied from aarch64 atomic.h */ + #ifndef _KVX_BITS_ATOMIC_H #define _KVX_BITS_ATOMIC_H +#define typeof __typeof__ + #include <stdint.h> +#include <sysdep.h> typedef int8_t atomic8_t; typedef uint8_t uatomic8_t; @@ -60,82 +66,130 @@ typedef uintmax_t uatomic_max_t; # define atomic_write_barrier() __builtin_kvx_fence() #endif -/* - * On kvx, we have a boolean compare and swap which means that the operation - * returns only the success of operation. - * If operation succeeds, this is simple, we just need to return the provided - * old value. However, if it fails, we need to load the value to return it for - * the caller. If the loaded value is different from the "old" provided by the - * caller, we can return it since it will mean it failed. - * However, if for some reason the value we read is equal to the old value - * provided by the caller, we can't simply return it or the caller will think it - * succeeded. So if the value we read is the same as the "old" provided by - * the caller, we try again until either we succeed or we fail with a different - * value than the provided one. - */ -#define __cmpxchg(ptr, old, new, op_suffix, load_suffix) \ -({ \ - register unsigned long __rn __asm__("r62"); \ - register unsigned long __ro __asm__("r63"); \ - __asm__ __volatile__ ( \ - /* Fence to guarantee previous store to be committed */ \ - "fence\n" \ - /* Init "expect" with previous value */ \ - "copyd $r63 = %[rOld]\n" \ - ";;\n" \ - "1:\n" \ - /* Init "update" value with new */ \ - "copyd $r62 = %[rNew]\n" \ - ";;\n" \ - "acswap" #op_suffix " 0[%[rPtr]], $r62r63\n" \ - ";;\n" \ - /* if acswap succeeds, simply return */ \ - "cb.dnez $r62? 2f\n" \ - ";;\n" \ - /* We failed, load old value */ \ - "l" #op_suffix #load_suffix" $r63 = 0[%[rPtr]]\n" \ - ";;\n" \ - /* Check if equal to "old" one */ \ - "compd.ne $r62 = $r63, %[rOld]\n" \ - ";;\n" \ - /* If different from "old", return it to caller */ \ - "cb.deqz $r62? 1b\n" \ - ";;\n" \ - "2:\n" \ - : "+r" (__rn), "+r" (__ro) \ - : [rPtr] "r" (ptr), [rOld] "r" (old), [rNew] "r" (new) \ - : "memory"); \ - (__ro); \ -}) - -#define cmpxchg(ptr, o, n) \ -({ \ - unsigned long __cmpxchg__ret; \ - switch (sizeof(*(ptr))) { \ - case 4: \ - __cmpxchg__ret = __cmpxchg((ptr), (o), (n), w, s); \ - break; \ - case 8: \ - __cmpxchg__ret = __cmpxchg((ptr), (o), (n), d, ); \ - break; \ - } \ - (__typeof(*(ptr))) (__cmpxchg__ret); \ -}) - -#define atomic_compare_and_exchange_val_acq(mem, newval, oldval) \ - cmpxchg((mem), (oldval), (newval)) - - -#define atomic_exchange_acq(mem, newval) \ -({ \ - unsigned long __aea__ret, __aea__old; \ - volatile __typeof((mem)) __aea__m = (mem); \ - do { \ - __aea__old = *__aea__m; \ - __aea__ret = atomic_compare_and_exchange_val_acq((mem), \ - (newval), (__aea__old));\ - } while (__aea__old != __aea__ret); \ - (__aea__old); \ -}) +#define __HAVE_64B_ATOMICS 1 +#define USE_ATOMIC_COMPILER_BUILTINS 1 + +/* Compare and exchange. + For all "bool" routines, we return FALSE if exchange succesful. */ + +# define __arch_compare_and_exchange_bool_8_int(mem, newval, oldval, model) \ + ({ \ + typeof (*mem) __oldval = (oldval); \ + !__atomic_compare_exchange_n (mem, (void *) &__oldval, newval, 0, \ + model, __ATOMIC_RELAXED); \ + }) + +# define __arch_compare_and_exchange_bool_16_int(mem, newval, oldval, model) \ + ({ \ + typeof (*mem) __oldval = (oldval); \ + !__atomic_compare_exchange_n (mem, (void *) &__oldval, newval, 0, \ + model, __ATOMIC_RELAXED); \ + }) + +# define __arch_compare_and_exchange_bool_32_int(mem, newval, oldval, model) \ + ({ \ + typeof (*mem) __oldval = (oldval); \ + !__atomic_compare_exchange_n (mem, (void *) &__oldval, newval, 0, \ + model, __ATOMIC_RELAXED); \ + }) + +# define __arch_compare_and_exchange_bool_64_int(mem, newval, oldval, model) \ + ({ \ + typeof (*mem) __oldval = (oldval); \ + !__atomic_compare_exchange_n (mem, (void *) &__oldval, newval, 0, \ + model, __ATOMIC_RELAXED); \ + }) + +# define __arch_compare_and_exchange_val_8_int(mem, newval, oldval, model) \ + ({ \ + typeof (*mem) __oldval = (oldval); \ + __atomic_compare_exchange_n (mem, (void *) &__oldval, newval, 0, \ + model, __ATOMIC_RELAXED); \ + __oldval; \ + }) + +# define __arch_compare_and_exchange_val_16_int(mem, newval, oldval, model) \ + ({ \ + typeof (*mem) __oldval = (oldval); \ + __atomic_compare_exchange_n (mem, (void *) &__oldval, newval, 0, \ + model, __ATOMIC_RELAXED); \ + __oldval; \ + }) + +# define __arch_compare_and_exchange_val_32_int(mem, newval, oldval, model) \ + ({ \ + typeof (*mem) __oldval = (oldval); \ + __atomic_compare_exchange_n (mem, (void *) &__oldval, newval, 0, \ + model, __ATOMIC_RELAXED); \ + __oldval; \ + }) + +# define __arch_compare_and_exchange_val_64_int(mem, newval, oldval, model) \ + ({ \ + typeof (*mem) __oldval = (oldval); \ + __atomic_compare_exchange_n (mem, (void *) &__oldval, newval, 0, \ + model, __ATOMIC_RELAXED); \ + __oldval; \ + }) + + +/* Compare and exchange with "acquire" semantics, ie barrier after. */ + +# define atomic_compare_and_exchange_bool_acq(mem, new, old) \ + __atomic_bool_bysize (__arch_compare_and_exchange_bool, int, \ + mem, new, old, __ATOMIC_ACQUIRE) + +# define atomic_compare_and_exchange_val_acq(mem, new, old) \ + __atomic_val_bysize (__arch_compare_and_exchange_val, int, \ + mem, new, old, __ATOMIC_ACQUIRE) + +/* Compare and exchange with "release" semantics, ie barrier before. */ + +# define atomic_compare_and_exchange_val_rel(mem, new, old) \ + __atomic_val_bysize (__arch_compare_and_exchange_val, int, \ + mem, new, old, __ATOMIC_RELEASE) + + +/* Atomic exchange (without compare). */ + +# define __arch_exchange_8_int(mem, newval, model) \ + __atomic_exchange_n (mem, newval, model) + +# define __arch_exchange_16_int(mem, newval, model) \ + __atomic_exchange_n (mem, newval, model) + +# define __arch_exchange_32_int(mem, newval, model) \ + __atomic_exchange_n (mem, newval, model) + +# define __arch_exchange_64_int(mem, newval, model) \ + __atomic_exchange_n (mem, newval, model) + +# define atomic_exchange_acq(mem, value) \ + __atomic_val_bysize (__arch_exchange, int, mem, value, __ATOMIC_ACQUIRE) + +# define atomic_exchange_rel(mem, value) \ + __atomic_val_bysize (__arch_exchange, int, mem, value, __ATOMIC_RELEASE) + + +/* Atomically add value and return the previous (unincremented) value. */ + +# define __arch_exchange_and_add_8_int(mem, value, model) \ + __atomic_fetch_add (mem, value, model) + +# define __arch_exchange_and_add_16_int(mem, value, model) \ + __atomic_fetch_add (mem, value, model) + +# define __arch_exchange_and_add_32_int(mem, value, model) \ + __atomic_fetch_add (mem, value, model) + +# define __arch_exchange_and_add_64_int(mem, value, model) \ + __atomic_fetch_add (mem, value, model) + +# define atomic_exchange_and_add_acq(mem, value) \ + __atomic_val_bysize (__arch_exchange_and_add, int, mem, value, \ + __ATOMIC_ACQUIRE) + +# define atomic_exchange_and_add_rel(mem, value) \ + __atomic_val_bysize (__arch_exchange_and_add, int, mem, value, \ #endif diff --git a/libc/sysdeps/linux/kvx/bits/fcntl.h b/libc/sysdeps/linux/kvx/bits/fcntl.h index ea0c59d09..79cd3f14e 100644 --- a/libc/sysdeps/linux/kvx/bits/fcntl.h +++ b/libc/sysdeps/linux/kvx/bits/fcntl.h @@ -227,3 +227,6 @@ 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/kvx/bits/kernel_types.h b/libc/sysdeps/linux/kvx/bits/kernel_types.h index 832b17674..8f6bda8e9 100644 --- a/libc/sysdeps/linux/kvx/bits/kernel_types.h +++ b/libc/sysdeps/linux/kvx/bits/kernel_types.h @@ -7,6 +7,8 @@ #ifndef __ASM_GENERIC_POSIX_TYPES_H #define __ASM_GENERIC_POSIX_TYPES_H +#include <asm/bitsperlong.h> + typedef unsigned long __kernel_dev_t; typedef unsigned long __kernel_ino_t; typedef unsigned int __kernel_mode_t; diff --git a/libc/sysdeps/linux/kvx/bits/shm.h b/libc/sysdeps/linux/kvx/bits/shm.h new file mode 100644 index 000000000..bfb603499 --- /dev/null +++ b/libc/sysdeps/linux/kvx/bits/shm.h @@ -0,0 +1,87 @@ +/* + * Licensed under the LGPL v2.1 or later, see the file COPYING.LIB + * in this tarball. + */ + +#ifndef _SYS_SHM_H +# error "Never include <bits/shm.h> directly; use <sys/shm.h> instead." +#endif + +#include <bits/types.h> + +/* Permission flag for shmget. */ +#define SHM_R 0400 /* or S_IRUGO from <linux/stat.h> */ +#define SHM_W 0200 /* or S_IWUGO from <linux/stat.h> */ + +/* Flags for `shmat'. */ +#define SHM_RDONLY 010000 /* attach read-only else read-write */ +#define SHM_RND 020000 /* round attach address to SHMLBA */ +#define SHM_REMAP 040000 /* take-over region on attach */ + +/* Commands for `shmctl'. */ +#define SHM_LOCK 11 /* lock segment (root only) */ +#define SHM_UNLOCK 12 /* unlock segment (root only) */ + +__BEGIN_DECLS + +/* Segment low boundary address multiple. */ +#define SHMLBA (__getpagesize () << 2) +extern int __getpagesize (void) __THROW __attribute__ ((__const__)); + + +/* Type to count number of attaches. */ +typedef unsigned long int shmatt_t; + +/* Data structure describing a set of semaphores. */ +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() */ + __time_t shm_dtime; /* time of last shmdt() */ + __time_t shm_ctime; /* time of last change by shmctl() */ + __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 __uclibc_unused1; + unsigned long int __uclibc_unused2; + }; + +#ifdef __USE_MISC + +/* ipcs ctl commands */ +# define SHM_STAT 13 +# define SHM_INFO 14 + +/* shm_mode upper byte flags */ +# define SHM_DEST 01000 /* segment will be destroyed on last detach */ +# define SHM_LOCKED 02000 /* segment will not be swapped */ +# define SHM_HUGETLB 04000 /* segment is mapped via hugetlb */ +# define SHM_NORESERVE 010000 /* don't check for reservations */ + +struct shminfo + { + unsigned long int shmmax; + unsigned long int shmmin; + unsigned long int shmmni; + unsigned long int shmseg; + unsigned long int shmall; + unsigned long int __uclibc_unused1; + unsigned long int __uclibc_unused2; + unsigned long int __uclibc_unused3; + unsigned long int __uclibc_unused4; + }; + +struct shm_info + { + int used_ids; + unsigned long int shm_tot; /* total allocated shm */ + unsigned long int shm_rss; /* total resident shm */ + unsigned long int shm_swp; /* total swapped shm */ + unsigned long int swap_attempts; + unsigned long int swap_successes; + }; + +#endif /* __USE_MISC */ + +__END_DECLS diff --git a/libc/sysdeps/linux/kvx/bits/stat.h b/libc/sysdeps/linux/kvx/bits/stat.h new file mode 100644 index 000000000..716d86150 --- /dev/null +++ b/libc/sysdeps/linux/kvx/bits/stat.h @@ -0,0 +1,145 @@ +/* + * Copyright (C) 2000-2006 Erik Andersen <andersen@uclibc.org> + * + * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. + */ + +#ifndef _SYS_STAT_H +# error "Never include <bits/stat.h> directly; use <sys/stat.h> instead." +#endif + +#include <bits/align64bit.h> +#include <bits/wordsize.h> +#include <endian.h> + +/* Versions of the `struct stat' data structure. */ +#define _STAT_VER_LINUX_OLD 1 +#define _STAT_VER_KERNEL 1 +#define _STAT_VER_SVR4 2 +#define _STAT_VER_LINUX 3 +#define _STAT_VER _STAT_VER_LINUX /* The one defined below. */ + +/* Versions of the `xmknod' interface. */ +#define _MKNOD_VER_LINUX 1 +#define _MKNOD_VER_SVR4 2 +#define _MKNOD_VER _MKNOD_VER_LINUX /* The bits defined below. */ + +/* + * This struct is exactly the same with the stat64 one because kvx is 64 bit + */ +struct stat + { + unsigned long long st_dev; /* Device. */ + unsigned long long st_ino; /* 32bit file serial number. */ + unsigned int st_mode; /* File mode. */ + unsigned int st_nlink; /* Link count. */ + unsigned int st_uid; /* User ID of the file's owner. */ + unsigned int st_gid; /* Group ID of the file's group.*/ + unsigned long long st_rdev; /* Device number, if device. */ + unsigned long long _pad1; + __off_t st_size; /* SIze of file, in bytes. */ + int st_blksize; /* Optimal block size for I/O. */ + int __pad2; + long long st_blocks; /* Number 512-byte blocks allocated */ +#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 + identifier 'timespec' to appear in the <sys/stat.h> header. + Therefore we have to handle the use of this header in strictly + standard-compliant sources special. */ + struct timespec st_atim; /* Time of last access. */ + struct timespec st_mtim; /* Time of last modification. */ + struct timespec st_ctim; /* Time of last status change. */ +# define st_atime st_atim.tv_sec /* Backward compatibility. */ +# define st_mtime st_mtim.tv_sec +# define st_ctime st_ctim.tv_sec +#else + long int st_atime; /* Time of last access. */ + unsigned long int st_atime_nsec; + long int st_mtime; /* Time of last modification. */ + unsigned long int st_mtime_nsec; + long int st_ctime; /* Time of last status change. */ + unsigned long int st_ctime_nsec; +#endif + unsigned int __uclibc_unused4; + unsigned int __uclibc_unused5; + } __ARCH_64BIT_ALIGNMENT__; + + +#ifdef __USE_LARGEFILE64 +struct stat64 + { + unsigned long long st_dev; /* Device. */ + unsigned long long st_ino; /* 32bit file serial number. */ + unsigned int st_mode; /* File mode. */ + unsigned int st_nlink; /* Link count. */ + unsigned int st_uid; /* User ID of the file's owner. */ + unsigned int st_gid; /* Group ID of the file's group.*/ + unsigned long long st_rdev; /* Device number, if device. */ + unsigned long long __pad3; + long long st_size; /* Size of file, in bytes. */ + int st_blksize; /* Optimal block size for I/O. */ + int __pad4; + long long st_blocks; /* Number 512-byte blocks allocated */ +# 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 + identifier 'timespec' to appear in the <sys/stat.h> header. + Therefore we have to handle the use of this header in strictly + standard-compliant sources special. */ + struct timespec st_atim; /* Time of last access. */ + struct timespec st_mtim; /* Time of last modification. */ + struct timespec st_ctim; /* Time of last status change. */ +# else + long int st_atime; /* Time of last access. */ + unsigned long int st_atime_nsec; + long int st_mtime; /* Time of last modification. */ + unsigned long int st_mtime_nsec; + long int st_ctime; /* Time of last status change. */ + unsigned long int st_ctime_nsec; +# endif + unsigned int __uclibc_unused4; + unsigned int __uclibc_unused5; +}; +#endif + +/* Tell code we have these members. */ +#define _STATBUF_ST_BLKSIZE +#define _STATBUF_ST_RDEV +/* Nanosecond resolution time values are supported. */ +#define _STATBUF_ST_NSEC + +/* Encoding of the file mode. */ + +#define __S_IFMT 0170000 /* These bits determine file type. */ + +/* File types. */ +#define __S_IFDIR 0040000 /* Directory. */ +#define __S_IFCHR 0020000 /* Character device. */ +#define __S_IFBLK 0060000 /* Block device. */ +#define __S_IFREG 0100000 /* Regular file. */ +#define __S_IFIFO 0010000 /* FIFO. */ +#define __S_IFLNK 0120000 /* Symbolic link. */ +#define __S_IFSOCK 0140000 /* Socket. */ + +/* POSIX.1b objects. Note that these macros always evaluate to zero. But + they do it by enforcing the correct use of the macros. */ +#define __S_TYPEISMQ(buf) ((buf)->st_mode - (buf)->st_mode) +#define __S_TYPEISSEM(buf) ((buf)->st_mode - (buf)->st_mode) +#define __S_TYPEISSHM(buf) ((buf)->st_mode - (buf)->st_mode) + +/* Protection bits. */ + +#define __S_ISUID 04000 /* Set user ID on execution. */ +#define __S_ISGID 02000 /* Set group ID on execution. */ +#define __S_ISVTX 01000 /* Save swapped text after use (sticky). */ +#define __S_IREAD 0400 /* Read by owner. */ +#define __S_IWRITE 0200 /* Write by owner. */ +#define __S_IEXEC 0100 /* Execute by owner. */ + +#ifdef __USE_ATFILE +# define UTIME_NOW ((1l << 30) - 1l) +# define UTIME_OMIT ((1l << 30) - 2l) +#endif diff --git a/libc/sysdeps/linux/kvx/bits/uClibc_arch_features.h b/libc/sysdeps/linux/kvx/bits/uClibc_arch_features.h index 7aae2d7c3..ecccdc7bb 100644 --- a/libc/sysdeps/linux/kvx/bits/uClibc_arch_features.h +++ b/libc/sysdeps/linux/kvx/bits/uClibc_arch_features.h @@ -11,6 +11,9 @@ /* can your target use syscall6() for mmap ? */ #define __UCLIBC_MMAP_HAS_6_ARGS__ +/* does your target use statx */ +#define __UCLIBC_HAVE_STATX__ + /* does your target align 64bit values in register pairs ? (32bit arches only) */ #undef __UCLIBC_SYSCALL_ALIGN_64BIT__ |