summaryrefslogtreecommitdiff
path: root/libc
diff options
context:
space:
mode:
Diffstat (limited to 'libc')
-rw-r--r--libc/string/kvx/Makefile13
-rw-r--r--libc/string/kvx/memcpy.S221
-rw-r--r--libc/string/kvx/memset.S146
-rw-r--r--libc/sysdeps/linux/kvx/Makefile13
-rw-r--r--libc/sysdeps/linux/kvx/Makefile.arch10
-rw-r--r--libc/sysdeps/linux/kvx/__longjmp.S53
-rw-r--r--libc/sysdeps/linux/kvx/__syscall_error.c19
-rw-r--r--libc/sysdeps/linux/kvx/bits/atomic.h141
-rw-r--r--libc/sysdeps/linux/kvx/bits/endian.h13
-rw-r--r--libc/sysdeps/linux/kvx/bits/fcntl.h226
-rw-r--r--libc/sysdeps/linux/kvx/bits/fenv.h106
-rw-r--r--libc/sysdeps/linux/kvx/bits/kernel_types.h42
-rw-r--r--libc/sysdeps/linux/kvx/bits/posix_types.h14
-rw-r--r--libc/sysdeps/linux/kvx/bits/sem.h84
-rw-r--r--libc/sysdeps/linux/kvx/bits/setjmp.h46
-rw-r--r--libc/sysdeps/linux/kvx/bits/stackinfo.h29
-rw-r--r--libc/sysdeps/linux/kvx/bits/statfs.h64
-rw-r--r--libc/sysdeps/linux/kvx/bits/syscalls.h80
-rw-r--r--libc/sysdeps/linux/kvx/bits/uClibc_arch_features.h41
-rw-r--r--libc/sysdeps/linux/kvx/bits/wordsize.h9
-rw-r--r--libc/sysdeps/linux/kvx/bsd-_setjmp.S18
-rw-r--r--libc/sysdeps/linux/kvx/bsd-setjmp.S17
-rw-r--r--libc/sysdeps/linux/kvx/cachectl.c15
-rw-r--r--libc/sysdeps/linux/kvx/clone.S100
-rw-r--r--libc/sysdeps/linux/kvx/crt1.S83
-rw-r--r--libc/sysdeps/linux/kvx/crti.S31
-rw-r--r--libc/sysdeps/linux/kvx/crtn.S33
-rw-r--r--libc/sysdeps/linux/kvx/jmpbuf-offsets.h50
-rw-r--r--libc/sysdeps/linux/kvx/jmpbuf-unwind.h30
-rw-r--r--libc/sysdeps/linux/kvx/setjmp.S59
-rw-r--r--libc/sysdeps/linux/kvx/sys/cachectl.h21
-rw-r--r--libc/sysdeps/linux/kvx/sys/procfs.h101
-rw-r--r--libc/sysdeps/linux/kvx/sys/ucontext.h29
-rw-r--r--libc/sysdeps/linux/kvx/sys/user.h27
-rw-r--r--libc/sysdeps/linux/kvx/sysdep.h49
-rw-r--r--libc/sysdeps/linux/kvx/vfork.S47
36 files changed, 2080 insertions, 0 deletions
diff --git a/libc/string/kvx/Makefile b/libc/string/kvx/Makefile
new file mode 100644
index 000000000..0a95346fd
--- /dev/null
+++ b/libc/string/kvx/Makefile
@@ -0,0 +1,13 @@
+# Makefile for uClibc
+#
+# Copyright (C) 2000-2005 Erik Andersen <andersen@uclibc.org>
+#
+# Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
+#
+
+top_srcdir:=../../../
+top_builddir:=../../../
+all: objs
+include $(top_builddir)Rules.mak
+include ../Makefile.in
+include $(top_srcdir)Makerules
diff --git a/libc/string/kvx/memcpy.S b/libc/string/kvx/memcpy.S
new file mode 100644
index 000000000..290e705b4
--- /dev/null
+++ b/libc/string/kvx/memcpy.S
@@ -0,0 +1,221 @@
+/*
+ * Copyright (C) 2020 Kalray Inc.
+ *
+ * Licensed under the LGPL v2.1 or later, see the file COPYING.LIB
+ * in this tarball.
+ */
+
+#include <sysdep.h>
+
+.align 16
+ENTRY(memcpy)
+ cb.deqz $r2? .Lreturn
+ compd.geu $r3 = $r2, 256
+ copyd $r6 = $r0
+ ;;
+ cb.deqz $r3? .Lremaining_256
+ ;;
+ lq.u $r32r33 = 0[$r1]
+ addd $r2 = $r2, -256
+ ;;
+ lq.u $r34r35 = 16[$r1]
+ ;;
+ lq.u $r36r37 = 32[$r1]
+ srld $r7 = $r2, 8
+ ;;
+ lq.u $r38r39 = 48[$r1]
+ ;;
+ lq.u $r40r41 = 64[$r1]
+ ;;
+ lq.u $r42r43 = 80[$r1]
+ ;;
+ lq.u $r44r45 = 96[$r1]
+ ;;
+ lq.u $r46r47 = 112[$r1]
+ ;;
+ lq.u $r48r49 = 128[$r1]
+ ;;
+ lq.u $r50r51 = 144[$r1]
+ ;;
+ lq.u $r52r53 = 160[$r1]
+ ;;
+ lq.u $r54r55 = 176[$r1]
+ ;;
+ lq.u $r56r57 = 192[$r1]
+ ;;
+ lq.u $r58r59 = 208[$r1]
+ compd.geu $r3 = $r2, 256
+ ;;
+ lq.u $r60r61 = 224[$r1]
+ ;;
+ lq.u $r62r63 = 240[$r1]
+ addd $r1 = $r1, 256
+ ;;
+ cb.deqz $r7? .Lstreaming_loop_end
+ ;;
+ loopdo $r7? .Lstreaming_loop_end
+ ;;
+ sq 0[$r0] = $r32r33
+ addd $r2 = $r2, -256
+ ;;
+ lq.u $r32r33 = 0[$r1]
+ ;;
+ sq 16[$r0] = $r34r35
+ ;;
+ lq.u $r34r35 = 16[$r1]
+ ;;
+ sq 32[$r0] = $r36r37
+ ;;
+ lq.u $r36r37 = 32[$r1]
+ ;;
+ sq 48[$r0] = $r38r39
+ ;;
+ lq.u $r38r39 = 48[$r1]
+ ;;
+ sq 64[$r0] = $r40r41
+ ;;
+ lq.u $r40r41 = 64[$r1]
+ ;;
+ sq 80[$r0] = $r42r43
+ ;;
+ lq.u $r42r43 = 80[$r1]
+ ;;
+ sq 96[$r0] = $r44r45
+ ;;
+ lq.u $r44r45 = 96[$r1]
+ ;;
+ sq 112[$r0] = $r46r47
+ ;;
+ lq.u $r46r47 = 112[$r1]
+ ;;
+ sq 128[$r0] = $r48r49
+ ;;
+ lq.u $r48r49 = 128[$r1]
+ ;;
+ sq 144[$r0] = $r50r51
+ ;;
+ lq.u $r50r51 = 144[$r1]
+ ;;
+ sq 160[$r0] = $r52r53
+ ;;
+ lq.u $r52r53 = 160[$r1]
+ ;;
+ sq 176[$r0] = $r54r55
+ ;;
+ lq.u $r54r55 = 176[$r1]
+ ;;
+ sq 192[$r0] = $r56r57
+ ;;
+ lq.u $r56r57 = 192[$r1]
+ ;;
+ sq 208[$r0] = $r58r59
+ ;;
+ lq.u $r58r59 = 208[$r1]
+ ;;
+ sq 224[$r0] = $r60r61
+ ;;
+ lq.u $r60r61 = 224[$r1]
+ ;;
+ sq 240[$r0] = $r62r63
+ addd $r0 = $r0, 256
+ ;;
+ lq.u $r62r63 = 240[$r1]
+ addd $r1 = $r1, 256
+ ;;
+ .Lstreaming_loop_end:
+ sq 0[$r0] = $r32r33
+ ;;
+ sq 16[$r0] = $r34r35
+ ;;
+ sq 32[$r0] = $r36r37
+ ;;
+ sq 48[$r0] = $r38r39
+ ;;
+ sq 64[$r0] = $r40r41
+ ;;
+ sq 80[$r0] = $r42r43
+ ;;
+ sq 96[$r0] = $r44r45
+ ;;
+ sq 112[$r0] = $r46r47
+ ;;
+ sq 128[$r0] = $r48r49
+ ;;
+ sq 144[$r0] = $r50r51
+ ;;
+ sq 160[$r0] = $r52r53
+ ;;
+ sq 176[$r0] = $r54r55
+ ;;
+ sq 192[$r0] = $r56r57
+ ;;
+ sq 208[$r0] = $r58r59
+ ;;
+ sq 224[$r0] = $r60r61
+ ;;
+ sq 240[$r0] = $r62r63
+ addd $r0 = $r0, 256
+ ;;
+.Lremaining_256:
+ andd $r11 = $r2, 16
+ srld $r7 = $r2, 5
+ ;;
+ cb.deqz $r7? .Lloop_32_end
+ ;;
+ loopdo $r7? .Lloop_32_end
+ ;;
+ lo $r32r33r34r35 = 0[$r1]
+ addd $r1 = $r1, 32
+ addd $r2 = $r2, -32
+ ;;
+ so 0[$r0] = $r32r33r34r35
+ addd $r0 = $r0, 32
+ ;;
+ .Lloop_32_end:
+ andd $r10 = $r2, 8
+ andd $r9 = $r2, 4
+ cb.deqz $r11? .Lloop_remaining_16
+ lq.u.dnez $r11? $r32r33 = 0[$r1]
+ ;;
+ sq 0[$r0] = $r32r33
+ addd $r1 = $r1, 16
+ addd $r0 = $r0, 16
+ ;;
+.Lloop_remaining_16:
+ andd $r8 = $r2, 2
+ andd $r7 = $r2, 1
+ cb.deqz $r10? .Lloop_remaining_8
+ ld.dnez $r10? $r32 = 0[$r1]
+ ;;
+ sd 0[$r0] = $r32
+ addd $r1 = $r1, 8
+ addd $r0 = $r0, 8
+ ;;
+.Lloop_remaining_8:
+ cb.deqz $r9? .Lloop_remaining_4
+ lwz.dnez $r9? $r32 = 0[$r1]
+ ;;
+ sw 0[$r0] = $r32
+ addd $r1 = $r1, 4
+ addd $r0 = $r0, 4
+ ;;
+.Lloop_remaining_4:
+ cb.deqz $r8? .Lloop_remaining_2
+ lhz.dnez $r8? $r32 = 0[$r1]
+ ;;
+ sh 0[$r0] = $r32
+ addd $r1 = $r1, 2
+ addd $r0 = $r0, 2
+ ;;
+.Lloop_remaining_2:
+ lbz.dnez $r7? $r32 = 0[$r1]
+ ;;
+ sb.dnez $r7? 0[$r0] = $r32
+ ;;
+.Lreturn:
+ copyd $r0 = $r6
+ ret
+ ;;
+END(memcpy)
+
+libc_hidden_def(memcpy)
diff --git a/libc/string/kvx/memset.S b/libc/string/kvx/memset.S
new file mode 100644
index 000000000..45023a68f
--- /dev/null
+++ b/libc/string/kvx/memset.S
@@ -0,0 +1,146 @@
+/*
+ * Copyright (C) 2019 Kalray Inc.
+ *
+ * Licensed under the LGPL v2.1 or later, see the file COPYING.LIB
+ * in this tarball.
+ */
+
+#define REPLICATE_BYTE_MASK 0x0101010101010101
+#define MIN_SIZE_FOR_ALIGN 128
+
+/*
+ * Optimized memset for kvx architecture
+ *
+ * In order to optimize memset on kvx, we can use various things:
+ * - conditionnal store which avoid branch penalty
+ * - store half/word/double/quad/octuple to store up to 16 bytes at a time
+ * - hardware loop for steady cases.
+ *
+ * First, we start by checking if the size is below a minimum size. If so, we
+ * skip the alignment part. Indeed, the kvx supports misalignment and the
+ * penalty for letting it do unaligned accesses is lower than trying to
+ * realigning us. So for small sizes, we don't even bother to realign.
+ * In order to create the 64 bits pattern, we use sbmm to replicate the pattern
+ * on all bits on a register in one call.
+ * Once alignment has been reached, we can do the hardware loop using store
+ * octuple in order to optimize throughput. Care must be taken to align hardware
+ * loops on at least 8 bytes for performances.
+ * Once the main loop has been done, we finish the copy by checking length to do
+ * the necessary calls to store remaining bytes.
+ */
+
+#include <sysdep.h>
+
+.align 16
+ENTRY(memset)
+ /* Preserve return value */
+ copyd $r3 = $r0
+ /* Replicate the first pattern byte on all bytes */
+ sbmm8 $r32 = $r1, REPLICATE_BYTE_MASK
+ /* Check if length < MIN_SIZE_FOR_ALIGN */
+ compd.geu $r7 = $r2, MIN_SIZE_FOR_ALIGN
+ /* Invert address to compute what we need to copy to be aligned on 32 bytes */
+ negd $r5 = $r0
+ ;;
+ /* Check if we are aligned on 32 bytes */
+ andw $r9 = $r0, 0x1F
+ /* Compute the length that will be copied to align on 32 bytes boundary */
+ andw $r6 = $r5, 0x1F
+ /*
+ * If size < MIN_SIZE_FOR_ALIGN bits, directly go to so, it will be done
+ * unaligned but that is still better that what we can do with sb
+ */
+ cb.deqz $r7? .Laligned_32
+ ;;
+ /* Remove unaligned part from length */
+ sbfd $r2 = $r6, $r2
+ /* If we are already aligned on 32 bytes, jump to main "so" loop */
+ cb.deqz $r9? .Laligned_32
+ /* Check if we need to copy 1 byte */
+ andw $r4 = $r5, (1 << 0)
+ ;;
+ /* If we are not aligned, store byte */
+ sb.dnez $r4? [$r0] = $r32
+ /* Check if we need to copy 2 bytes */
+ andw $r4 = $r5, (1 << 1)
+ /* Add potentially copied part for next store offset */
+ addd $r0 = $r0, $r4
+ ;;
+ sh.dnez $r4? [$r0] = $r32
+ /* Check if we need to copy 4 bytes */
+ andw $r4 = $r5, (1 << 2)
+ addd $r0 = $r0, $r4
+ ;;
+ sw.dnez $r4? [$r0] = $r32
+ /* Check if we need to copy 8 bytes */
+ andw $r4 = $r5, (1 << 3)
+ addd $r0 = $r0, $r4
+ /* Copy second part of pattern for sq */
+ copyd $r33 = $r32
+ ;;
+ sd.dnez $r4? [$r0] = $r32
+ /* Check if we need to copy 16 bytes */
+ andw $r4 = $r5, (1 << 4)
+ addd $r0 = $r0, $r4
+ ;;
+ sq.dnez $r4? [$r0] = $r32r33
+ addd $r0 = $r0, $r4
+ ;;
+.Laligned_32:
+ /* Copy second part of pattern for sq */
+ copyd $r33 = $r32
+ /* Prepare amount of data for 32 bytes store */
+ srld $r10 = $r2, 5
+ nop
+ nop
+ ;;
+ copyq $r34r35 = $r32, $r33
+ /* Remaining bytes for 16 bytes store */
+ andw $r8 = $r2, (1 << 4)
+ make $r11 = 32
+ /* Check if there are enough data for 32 bytes store */
+ cb.deqz $r10? .Laligned_32_done
+ ;;
+ loopdo $r10, .Laligned_32_done
+ ;;
+ so 0[$r0] = $r32r33r34r35
+ addd $r0 = $r0, $r11
+ ;;
+ .Laligned_32_done:
+ /*
+ * Now that we have handled every aligned bytes using 'so', we can
+ * handled the remainder of length using store by decrementing size
+ * We also exploit the fact we are aligned to simply check remaining
+ * size */
+ sq.dnez $r8? [$r0] = $r32r33
+ addd $r0 = $r0, $r8
+ /* Remaining bytes for 8 bytes store */
+ andw $r8 = $r2, (1 << 3)
+ cb.deqz $r2? .Lmemset_done
+ ;;
+ sd.dnez $r8? [$r0] = $r32
+ addd $r0 = $r0, $r8
+ /* Remaining bytes for 4 bytes store */
+ andw $r8 = $r2, (1 << 2)
+ ;;
+ sw.dnez $r8? [$r0] = $r32
+ addd $r0 = $r0, $r8
+ /* Remaining bytes for 2 bytes store */
+ andw $r8 = $r2, (1 << 1)
+ ;;
+ sh.dnez $r8? [$r0] = $r32
+ addd $r0 = $r0, $r8
+ ;;
+ sb.odd $r2? [$r0] = $r32
+ /* Restore original value */
+ copyd $r0 = $r3
+ ret
+ ;;
+.Lmemset_done:
+ /* Restore original value */
+ copyd $r0 = $r3
+ ret
+ ;;
+END(memset)
+
+libc_hidden_def(memset)
diff --git a/libc/sysdeps/linux/kvx/Makefile b/libc/sysdeps/linux/kvx/Makefile
new file mode 100644
index 000000000..633c91f3e
--- /dev/null
+++ b/libc/sysdeps/linux/kvx/Makefile
@@ -0,0 +1,13 @@
+# Makefile for uClibc
+#
+# Copyright (C) 2000-2005 Erik Andersen <andersen@uclibc.org>
+#
+# Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
+#
+
+top_srcdir=../../../../
+top_builddir=../../../../
+all: objs
+include $(top_builddir)Rules.mak
+include Makefile.arch
+include $(top_srcdir)Makerules
diff --git a/libc/sysdeps/linux/kvx/Makefile.arch b/libc/sysdeps/linux/kvx/Makefile.arch
new file mode 100644
index 000000000..3ad290915
--- /dev/null
+++ b/libc/sysdeps/linux/kvx/Makefile.arch
@@ -0,0 +1,10 @@
+# Makefile for uClibc
+#
+# Copyright (C) 2000-2005 Erik Andersen <andersen@uclibc.org>
+#
+# Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
+#
+
+CSRC-y := __syscall_error.c
+CSRC-$(UCLIBC_LINUX_SPECIFIC) += cachectl.c
+SSRC-y := setjmp.S bsd-setjmp.S bsd-_setjmp.S __longjmp.S clone.S vfork.S
diff --git a/libc/sysdeps/linux/kvx/__longjmp.S b/libc/sysdeps/linux/kvx/__longjmp.S
new file mode 100644
index 000000000..fbfefe81c
--- /dev/null
+++ b/libc/sysdeps/linux/kvx/__longjmp.S
@@ -0,0 +1,53 @@
+/*
+ * This file is subject to the terms and conditions of the LGPL V2.1
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2018 Kalray Inc.
+ */
+
+#include <sysdep.h>
+#define _SETJMP_H
+#define _ASM
+#include <bits/setjmp.h>
+#include <libc-symbols.h>
+
+/**
+ * void __longjmp(__jmp_buf __env, int __val)
+ */
+ENTRY(__longjmp)
+ /* Load $ra and $csinto r40r41 */
+ lq $r40r41 = JMPBUF_RA_CS_OFFSET[$r0]
+ ;;
+ /* Load $r36r37r38r39 with r12(sp) r14 r18 r19 */
+ lo $r36r37r38r39 = (JMPBUF_REGS_OFFSET)[$r0]
+ set $ra = $r40
+ ;;
+ /* Load $lc, $le and $ls */
+ lo $r32r33r34r35 = JMPBUF_LC_LE_LS_OFFSET[$r0]
+ copyd $sp = $r36
+ copyd $r14 = $r37
+ set $cs = $r41
+ ;;
+ /* Load r20r21r22r23 */
+ lo $r20r21r22r23 = (JMPBUF_REGS_OFFSET + QUAD_REG_SIZE)[$r0]
+ copyd $r18 = $r38
+ copyd $r19 = $r39
+ set $lc = $r32
+ ;;
+ /* Load r24r25r26r27 */
+ lo $r24r25r26r27 = (JMPBUF_REGS_OFFSET + 2 * QUAD_REG_SIZE)[$r0]
+ set $le = $r33
+ ;;
+ /* Load r28r29r30r31 */
+ lo $r28r29r30r31 = (JMPBUF_REGS_OFFSET + 3 * QUAD_REG_SIZE)[$r0]
+ set $ls = $r34
+ /* Copy retval */
+ copyd $r0 = $r1
+ ;;
+ /* According to man, if retval is equal to 0, then we should return 1 */
+ cmoved.deqz $r0? $r0 = 1
+ ret
+ ;;
+END(__longjmp)
+libc_hidden_def(__longjmp)
diff --git a/libc/sysdeps/linux/kvx/__syscall_error.c b/libc/sysdeps/linux/kvx/__syscall_error.c
new file mode 100644
index 000000000..d534ee7d4
--- /dev/null
+++ b/libc/sysdeps/linux/kvx/__syscall_error.c
@@ -0,0 +1,19 @@
+/*
+ * This file is subject to the terms and conditions of the LGPL V2.1
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2018 Kalray Inc.
+ */
+
+#include <errno.h>
+#include <features.h>
+
+/* This routine is jumped to by all the syscall handlers, to stash
+ * an error number into errno. */
+long __syscall_error(int err_no) attribute_hidden;
+long __syscall_error(int err_no)
+{
+ __set_errno(-err_no);
+ return -1;
+}
diff --git a/libc/sysdeps/linux/kvx/bits/atomic.h b/libc/sysdeps/linux/kvx/bits/atomic.h
new file mode 100644
index 000000000..3c423e9ba
--- /dev/null
+++ b/libc/sysdeps/linux/kvx/bits/atomic.h
@@ -0,0 +1,141 @@
+/* Copyright (C) 2010-2012 Free Software Foundation, 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
+ 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
+ <http://www.gnu.org/licenses/>. */
+
+#ifndef _KVX_BITS_ATOMIC_H
+#define _KVX_BITS_ATOMIC_H
+
+#include <stdint.h>
+
+typedef int8_t atomic8_t;
+typedef uint8_t uatomic8_t;
+typedef int_fast8_t atomic_fast8_t;
+typedef uint_fast8_t uatomic_fast8_t;
+
+typedef int16_t atomic16_t;
+typedef uint16_t uatomic16_t;
+typedef int_fast16_t atomic_fast16_t;
+typedef uint_fast16_t uatomic_fast16_t;
+
+typedef int32_t atomic32_t;
+typedef uint32_t uatomic32_t;
+typedef int_fast32_t atomic_fast32_t;
+typedef uint_fast32_t uatomic_fast32_t;
+
+typedef int64_t atomic64_t;
+typedef uint64_t uatomic64_t;
+typedef int_fast64_t atomic_fast64_t;
+typedef uint_fast64_t uatomic_fast64_t;
+
+typedef intptr_t atomicptr_t;
+typedef uintptr_t uatomicptr_t;
+typedef intmax_t atomic_max_t;
+typedef uintmax_t uatomic_max_t;
+
+
+#ifndef atomic_full_barrier
+# define atomic_full_barrier() do { atomic_read_barrier(); \
+ atomic_write_barrier(); } while(0)
+#endif
+
+#ifndef atomic_read_barrier
+# define atomic_read_barrier() __builtin_kvx_dinval()
+#endif
+
+#ifndef atomic_write_barrier
+# 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); \
+})
+
+#endif
diff --git a/libc/sysdeps/linux/kvx/bits/endian.h b/libc/sysdeps/linux/kvx/bits/endian.h
new file mode 100644
index 000000000..03a1b7f0c
--- /dev/null
+++ b/libc/sysdeps/linux/kvx/bits/endian.h
@@ -0,0 +1,13 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2018 Kalray Inc.
+ */
+
+#ifndef _ENDIAN_H
+# error "Never use <bits/endian.h> directly; include <endian.h> instead."
+#endif
+
+#define __BYTE_ORDER __LITTLE_ENDIAN
diff --git a/libc/sysdeps/linux/kvx/bits/fcntl.h b/libc/sysdeps/linux/kvx/bits/fcntl.h
new file mode 100644
index 000000000..c1815b44f
--- /dev/null
+++ b/libc/sysdeps/linux/kvx/bits/fcntl.h
@@ -0,0 +1,226 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2018 Kalray Inc.
+ */
+
+#ifndef _FCNTL_H
+# error "Never use <bits/fcntl.h> directly; include <fcntl.h> instead."
+#endif
+
+#include <sys/types.h>
+#ifdef __USE_GNU
+# include <bits/uio.h>
+#endif
+
+/* open/fcntl - O_SYNC is only implemented on blocks devices and on files
+ located on an ext2 file system */
+#define O_ACCMODE 0003
+#define O_RDONLY 00
+#define O_WRONLY 01
+#define O_RDWR 02
+#define O_CREAT 0100 /* not fcntl */
+#define O_EXCL 0200 /* not fcntl */
+#define O_NOCTTY 0400 /* not fcntl */
+#define O_TRUNC 01000 /* not fcntl */
+#define O_APPEND 02000
+#define O_NONBLOCK 04000
+#define O_NDELAY O_NONBLOCK
+#define O_SYNC 010000
+#define O_FSYNC O_SYNC
+#define O_ASYNC 020000
+
+#ifdef __USE_XOPEN2K8
+# define O_DIRECTORY 0200000 /* Must be a directory. */
+# define O_NOFOLLOW 0400000 /* Do not follow links. */
+# define O_CLOEXEC 02000000 /* Set close_on_exec. */
+#endif
+
+#ifdef __USE_GNU
+# define O_DIRECT 040000 /* Direct disk access. */
+# define O_NOATIME 01000000 /* Do not set atime. */
+# define O_PATH 010000000 /* Resolve pathname but do not open file. */
+#endif
+
+#ifdef __USE_LARGEFILE64
+# define O_LARGEFILE 0100000
+#endif
+
+/* For now Linux has synchronisity options for data and read operations.
+ We define the symbols here but let them do the same as O_SYNC since
+ this is a superset. */
+#if defined __USE_POSIX199309 || defined __USE_UNIX98
+# define O_DSYNC O_SYNC /* Synchronize data. */
+# define O_RSYNC O_SYNC /* Synchronize read operations. */
+#endif
+
+/* Values for the second argument to `fcntl'. */
+#define F_DUPFD 0 /* Duplicate file descriptor. */
+#define F_GETFD 1 /* Get file descriptor flags. */
+#define F_SETFD 2 /* Set file descriptor flags. */
+#define F_GETFL 3 /* Get file status flags. */
+#define F_SETFL 4 /* Set file status flags. */
+
+#define F_GETLK 5 /* Get record locking info. */
+#define F_SETLK 6 /* Set record locking info (non-blocking). */
+#define F_SETLKW 7 /* Set record locking info (blocking). */
+
+/* Same as standard, since we always have 64-bit offsets. */
+#define F_GETLK64 F_GETLK /* Get record locking info. */
+#define F_SETLK64 F_SETLK /* Set record locking info (non-blocking). */
+#define F_SETLKW64 F_SETLKW /* Set record locking info (blocking). */
+
+#if defined __USE_BSD || defined __USE_XOPEN2K
+# define F_SETOWN 8 /* Get owner of socket (receiver of SIGIO). */
+# define F_GETOWN 9 /* Set owner of socket (receiver of SIGIO). */
+#endif
+
+#ifdef __USE_GNU
+# define F_SETSIG 10 /* Set number of signal to be sent. */
+# define F_GETSIG 11 /* Get number of signal to be sent. */
+#endif
+
+#ifdef __USE_GNU
+# 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
+
+/* For F_[GET|SET]FL. */
+#define FD_CLOEXEC 1 /* actually anything with low bit set goes */
+
+/* For posix fcntl() and `l_type' field of a `struct flock' for lockf(). */
+#define F_RDLCK 0 /* Read lock. */
+#define F_WRLCK 1 /* Write lock. */
+#define F_UNLCK 2 /* Remove lock. */
+
+/* For old implementation of bsd flock(). */
+#define F_EXLCK 4 /* or 3 */
+#define F_SHLCK 8 /* or 4 */
+
+#ifdef __USE_BSD
+/* Operations for bsd flock(), also used by the kernel implementation. */
+# define LOCK_SH 1 /* shared lock */
+# define LOCK_EX 2 /* exclusive lock */
+# define LOCK_NB 4 /* or'd with one of the above to prevent
+ blocking */
+# define LOCK_UN 8 /* remove lock */
+#endif
+
+#ifdef __USE_GNU
+# define LOCK_MAND 32 /* This is a mandatory flock: */
+# define LOCK_READ 64 /* ... which allows concurrent read operations. */
+# define LOCK_WRITE 128 /* ... which allows concurrent write operations. */
+# define LOCK_RW 192 /* ... Which allows concurrent read & write operations. */
+#endif
+
+#ifdef __USE_GNU
+/* Types of directory notifications that may be requested with F_NOTIFY. */
+# define DN_ACCESS 0x00000001 /* File accessed. */
+# define DN_MODIFY 0x00000002 /* File modified. */
+# define DN_CREATE 0x00000004 /* File created. */
+# define DN_DELETE 0x00000008 /* File removed. */
+# define DN_RENAME 0x00000010 /* File renamed. */
+# define DN_ATTRIB 0x00000020 /* File changed attibutes. */
+# define DN_MULTISHOT 0x80000000 /* Don't remove notifier. */
+#endif
+
+struct flock
+ {
+ short int l_type; /* Type of lock: F_RDLCK, F_WRLCK, or F_UNLCK. */
+ short int l_whence; /* Where `l_start' is relative to (like `lseek'). */
+#ifndef __USE_FILE_OFFSET64
+ __off_t l_start; /* Offset where the lock begins. */
+ __off_t l_len; /* Size of the locked area; zero means until EOF. */
+#else
+ __off64_t l_start; /* Offset where the lock begins. */
+ __off64_t l_len; /* Size of the locked area; zero means until EOF. */
+#endif
+ __pid_t l_pid; /* Process holding the lock. */
+ };
+
+#ifdef __USE_LARGEFILE64
+struct flock64
+ {
+ short int l_type; /* Type of lock: F_RDLCK, F_WRLCK, or F_UNLCK. */
+ short int l_whence; /* Where `l_start' is relative to (like `lseek'). */
+ __off64_t l_start; /* Offset where the lock begins. */
+ __off64_t l_len; /* Size of the locked area; zero means until EOF. */
+ __pid_t l_pid; /* Process holding the lock. */
+ };
+#endif
+
+/* Define some more compatibility macros to be backward compatible with
+ BSD systems which did not managed to hide these kernel macros. */
+#ifdef __USE_BSD
+# define FAPPEND O_APPEND
+# define FFSYNC O_FSYNC
+# define FASYNC O_ASYNC
+# define FNONBLOCK O_NONBLOCK
+# define FNDELAY O_NDELAY
+#endif /* Use BSD. */
+
+/* Advise to `posix_fadvise'. */
+#ifdef __USE_XOPEN2K
+# define POSIX_FADV_NORMAL 0 /* No further special treatment. */
+# define POSIX_FADV_RANDOM 1 /* Expect random page references. */
+# define POSIX_FADV_SEQUENTIAL 2 /* Expect sequential page references. */
+# define POSIX_FADV_WILLNEED 3 /* Will need these pages. */
+# define POSIX_FADV_DONTNEED 4 /* Don't need these pages. */
+# define POSIX_FADV_NOREUSE 5 /* Data will be accessed once. */
+#endif
+
+#if defined __USE_GNU && defined __UCLIBC_LINUX_SPECIFIC__
+/* Flags for SYNC_FILE_RANGE. */
+# define SYNC_FILE_RANGE_WAIT_BEFORE 1 /* Wait upon writeout of all pages
+ in the range before performing the
+ write. */
+# define SYNC_FILE_RANGE_WRITE 2 /* Initiate writeout of all those
+ dirty pages in the range which are
+ not presently under writeback. */
+# define SYNC_FILE_RANGE_WAIT_AFTER 4 /* Wait upon writeout of all pages in
+ the range after performing the
+ write. */
+
+/* Flags for SPLICE and VMSPLICE. */
+# define SPLICE_F_MOVE 1 /* Move pages instead of copying. */
+# define SPLICE_F_NONBLOCK 2 /* Don't block on the pipe splicing
+ (but we may still block on the fd
+ we splice from/to). */
+# define SPLICE_F_MORE 4 /* Expect more data. */
+# define SPLICE_F_GIFT 8 /* Pages passed in are a gift. */
+#endif
+
+__BEGIN_DECLS
+
+#if defined __USE_GNU && defined __UCLIBC_LINUX_SPECIFIC__
+
+/* Provide kernel hint to read ahead. */
+extern ssize_t readahead (int __fd, __off64_t __offset, size_t __count)
+ __THROW;
+
+/* Selective file content synch'ing. */
+extern int sync_file_range (int __fd, __off64_t __from, __off64_t __to,
+ unsigned int __flags);
+
+/* Splice address range into a pipe. */
+extern ssize_t vmsplice (int __fdout, const struct iovec *__iov,
+ size_t __count, unsigned int __flags);
+
+/* Splice two files together. */
+extern ssize_t splice (int __fdin, __off64_t *__offin, int __fdout,
+ __off64_t *__offout, size_t __len,
+ unsigned int __flags);
+
+/* In-kernel implementation of tee for pipe buffers. */
+extern ssize_t tee (int __fdin, int __fdout, size_t __len,
+ unsigned int __flags);
+
+#endif
+__END_DECLS
diff --git a/libc/sysdeps/linux/kvx/bits/fenv.h b/libc/sysdeps/linux/kvx/bits/fenv.h
new file mode 100644
index 000000000..445ec7aff
--- /dev/null
+++ b/libc/sysdeps/linux/kvx/bits/fenv.h
@@ -0,0 +1,106 @@
+/* Copyright (C) 1997, 1998, 1999, 2000, 2001 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ 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
+ <http://www.gnu.org/licenses/>. */
+
+#ifndef _FENV_H
+# error "Never use <bits/fenv.h> directly; include <fenv.h> instead."
+#endif
+
+/* $cs register number for use in kvx builtins */
+#define KVX_SFR_CS 4
+
+/* Each core of the Coolidge processor has a coprocessor. They share
+ the CS register but have distinct bit-fields for their
+ floating-point environment. This implementation synchronizes them
+ in such a way that they cannot be managed separately. */
+
+/* Compute Status ($cs) register contains the following bit-fields for
+ floating-point execption flags.
+
+ Bit-field Condition of the IEEE 754 binary floating-point standard
+ --------- --------------------------------------------------------
+ IO Invalid Operation
+ DZ Divide by Zero
+ OV Overflow
+ UN Underflow
+ IN Inexact
+ XIO Invalid Operation (coprocessor)
+ XDZ Divide by Zero (coprocessor)
+ XOV Overflow (coprocessor)
+ XUN Underflow (coprocessor)
+ XIN Inexact (coprocessor) */
+
+#define _FE_INVALID 0x02
+#define _FE_DIVBYZERO 0x04
+#define _FE_OVERFLOW 0x08
+#define _FE_UNDERFLOW 0x10
+#define _FE_INEXACT 0x20
+
+#define _FE_X_INVALID 0x0200
+#define _FE_X_DIVBYZERO 0x0400
+#define _FE_X_OVERFLOW 0x0800
+#define _FE_X_UNDERFLOW 0x1000
+#define _FE_X_INEXACT 0x2000
+
+#define FE_INVALID (_FE_INVALID | _FE_X_INVALID)
+#define FE_DIVBYZERO (_FE_DIVBYZERO | _FE_X_DIVBYZERO)
+#define FE_OVERFLOW (_FE_OVERFLOW | _FE_X_OVERFLOW)
+#define FE_UNDERFLOW (_FE_UNDERFLOW | _FE_X_UNDERFLOW)
+#define FE_INEXACT (_FE_INEXACT | _FE_X_INEXACT)
+
+#define FE_ALL_EXCEPT (FE_INVALID|FE_DIVBYZERO|FE_OVERFLOW|FE_UNDERFLOW|FE_INEXACT)
+
+/* Compute Status ($cs) register contains the following bit-fields for
+ floating-point rounding modes.
+
+ Following table describes both the RM and XRM (coproc) bit-fields.
+
+ Value Rounding Mode of the IEEE 754 binary floating-point standard
+ ----- ------------------------------------------------------------
+ 0b00 to nearest even
+ 0b01 toward +inf
+ 0b10 toward -inf
+ 0b11 toward zero */
+
+#define _FE_TONEAREST 0
+#define _FE_UPWARD 1
+#define _FE_DOWNWARD 2
+#define _FE_TOWARDZERO 3
+
+#define _FE_X_TONEAREST 0
+#define _FE_X_UPWARD 1
+#define _FE_X_DOWNWARD 2
+#define _FE_X_TOWARDZERO 3
+
+
+#define FE_TONEAREST ((_FE_TONEAREST << 16) | (_FE_X_TONEAREST << 20))
+#define FE_UPWARD ((_FE_UPWARD << 16) | (_FE_X_UPWARD << 20))
+#define FE_DOWNWARD ((_FE_DOWNWARD << 16) | (_FE_X_DOWNWARD << 20))
+#define FE_TOWARDZERO ((_FE_TOWARDZERO << 16) | (_FE_X_TOWARDZERO << 20))
+
+#define FE_RND_MASK FE_TOWARDZERO
+
+/* The type representing all floating-point status flags collectively.
+ The environment is simply a copy from the FPU related bits in the
+ CS register, but can be improved in the future. */
+typedef unsigned int fexcept_t;
+/* The type representing the entire floating-point environment. The
+ environment is simply a copy from the FPU related bits in the CS
+ register. */
+typedef unsigned int fenv_t;
+
+extern const fenv_t __fe_dfl_env;
+#define FE_DFL_ENV __fe_dfl_env
diff --git a/libc/sysdeps/linux/kvx/bits/kernel_types.h b/libc/sysdeps/linux/kvx/bits/kernel_types.h
new file mode 100644
index 000000000..832b17674
--- /dev/null
+++ b/libc/sysdeps/linux/kvx/bits/kernel_types.h
@@ -0,0 +1,42 @@
+/* Note that we use the exact same include guard #define names
+ * as asm/posix_types.h. This will avoid gratuitous conflicts
+ * with the posix_types.h kernel header, and will ensure that
+ * our private content, and not the kernel header, will win.
+ * -Erik
+ */
+#ifndef __ASM_GENERIC_POSIX_TYPES_H
+#define __ASM_GENERIC_POSIX_TYPES_H
+
+typedef unsigned long __kernel_dev_t;
+typedef unsigned long __kernel_ino_t;
+typedef unsigned int __kernel_mode_t;
+typedef unsigned int __kernel_nlink_t;
+typedef long __kernel_off_t;
+typedef int __kernel_pid_t;
+typedef int __kernel_ipc_pid_t;
+typedef unsigned int __kernel_uid_t;
+typedef unsigned int __kernel_gid_t;
+typedef unsigned long __kernel_size_t;
+typedef long __kernel_ssize_t;
+typedef long __kernel_ptrdiff_t;
+typedef long __kernel_time_t;
+typedef long __kernel_suseconds_t;
+typedef long __kernel_clock_t;
+typedef int __kernel_daddr_t;
+typedef char * __kernel_caddr_t;
+typedef unsigned short __kernel_uid16_t;
+typedef unsigned short __kernel_gid16_t;
+typedef unsigned int __kernel_uid32_t;
+typedef unsigned int __kernel_gid32_t;
+typedef unsigned short __kernel_old_uid_t;
+typedef unsigned short __kernel_old_gid_t;
+typedef long long __kernel_loff_t;
+typedef unsigned int __kernel_old_dev_t;
+typedef long __kernel_long_t;
+typedef unsigned long __kernel_ulong_t;
+
+typedef struct {
+ int val[2];
+} __kernel_fsid_t;
+
+#endif /* __ASM_GENERIC_POSIX_TYPES_H */
diff --git a/libc/sysdeps/linux/kvx/bits/posix_types.h b/libc/sysdeps/linux/kvx/bits/posix_types.h
new file mode 100644
index 000000000..e556fda5d
--- /dev/null
+++ b/libc/sysdeps/linux/kvx/bits/posix_types.h
@@ -0,0 +1,14 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2017 Kalray Inc.
+ */
+
+#ifndef _UAPI_ASM_KVX_POSIX_TYPES_H
+#define _UAPI_ASM_KVX_POSIX_TYPES_H
+
+#include <asm-generic/posix_types.h>
+
+#endif /* _UAPI_ASM_KVX_POSIX_TYPES_H */
diff --git a/libc/sysdeps/linux/kvx/bits/sem.h b/libc/sysdeps/linux/kvx/bits/sem.h
new file mode 100644
index 000000000..4d412a2cb
--- /dev/null
+++ b/libc/sysdeps/linux/kvx/bits/sem.h
@@ -0,0 +1,84 @@
+/* Copyright (C) 1995, 1996, 1997, 1998, 2000, 2001 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ 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
+ <http://www.gnu.org/licenses/>. */
+
+#ifndef _SYS_SEM_H
+# error "Never include <bits/sem.h> directly; use <sys/sem.h> instead."
+#endif
+
+#include <sys/types.h>
+
+/* Flags for `semop'. */
+#define SEM_UNDO 0x1000 /* undo the operation on exit */
+
+/* Commands for `semctl'. */
+#define GETPID 11 /* get sempid */
+#define GETVAL 12 /* get semval */
+#define GETALL 13 /* get all semval's */
+#define GETNCNT 14 /* get semncnt */
+#define GETZCNT 15 /* get semzcnt */
+#define SETVAL 16 /* set semval */
+#define SETALL 17 /* set all semval's */
+
+
+/* Data structure describing a set of semaphores. */
+struct semid_ds
+{
+ struct ipc_perm sem_perm; /* operation permission struct */
+ __time_t sem_otime; /* last semop() time */
+ __time_t sem_ctime; /* last time changed by semctl() */
+ unsigned long int sem_nsems; /* number of semaphores in set */
+ unsigned long int __unused1;
+ unsigned long int __unused2;
+};
+
+/* The user should define a union like the following to use it for arguments
+ for `semctl'.
+
+ union semun
+ {
+ int val; <= value for SETVAL
+ struct semid_ds *buf; <= buffer for IPC_STAT & IPC_SET
+ unsigned short int *array; <= array for GETALL & SETALL
+ struct seminfo *__buf; <= buffer for IPC_INFO
+ };
+
+ Previous versions of this file used to define this union but this is
+ incorrect. One can test the macro _SEM_SEMUN_UNDEFINED to see whether
+ one must define the union or not. */
+#define _SEM_SEMUN_UNDEFINED 1
+
+#ifdef __USE_MISC
+
+/* ipcs ctl cmds */
+# define SEM_STAT 18
+# define SEM_INFO 19
+
+struct seminfo
+{
+ int semmap;
+ int semmni;
+ int semmns;
+ int semmnu;
+ int semmsl;
+ int semopm;
+ int semume;
+ int semusz;
+ int semvmx;
+ int semaem;
+};
+
+#endif /* __USE_MISC */
diff --git a/libc/sysdeps/linux/kvx/bits/setjmp.h b/libc/sysdeps/linux/kvx/bits/setjmp.h
new file mode 100644
index 000000000..59faa7620
--- /dev/null
+++ b/libc/sysdeps/linux/kvx/bits/setjmp.h
@@ -0,0 +1,46 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2018 Kalray Inc.
+ */
+
+#ifndef _BITS_SETJMP_H
+#define _BITS_SETJMP_H 1
+
+#if !defined _SETJMP_H && !defined _PTHREAD_H
+# error "Never include <bits/setjmp.h> directly; use <setjmp.h> instead."
+#endif
+
+#define SIZE_OF_REG 8
+
+/* Size of a quad reg (can't use sizeof(uint64_t) since it will be in asm */
+#define QUAD_REG_SIZE (4 * SIZE_OF_REG)
+
+
+#define JMPBUF_RA_CS_OFFSET 0
+#define JMPBUF_LC_LE_LS_OFFSET (2 * SIZE_OF_REG)
+/* Start offset of regs[] in __jmp_buf struct */
+#define JMPBUF_REGS_OFFSET (JMPBUF_LC_LE_LS_OFFSET + (4 * SIZE_OF_REG))
+
+#ifndef _ASM
+typedef struct
+ {
+ /* Return address */
+ unsigned long ra;
+ unsigned long cs;
+
+ /* Store lc, le, ls into this buf */
+ unsigned long lc_le_ls[4];
+
+ /* Callee-saved GPR registers:
+ * r12(sp) r14 r18 r19 r20 r21 r22 r23 r24 r25 r26 r27 r28 r29 r30 r31
+ */
+ unsigned long regs[16];
+
+ } __jmp_buf[1] __attribute__((__aligned__ (8)));
+
+#endif
+
+#endif /* bits/setjmp.h */
diff --git a/libc/sysdeps/linux/kvx/bits/stackinfo.h b/libc/sysdeps/linux/kvx/bits/stackinfo.h
new file mode 100644
index 000000000..0a17bff30
--- /dev/null
+++ b/libc/sysdeps/linux/kvx/bits/stackinfo.h
@@ -0,0 +1,29 @@
+/* Copyright (C) 1999 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ 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
+ <http://www.gnu.org/licenses/>. */
+
+/* This file contains a bit of information about the stack allocation
+ of the processor. Since there is no general truth we can't say
+ anything here. */
+
+#ifndef _STACKINFO_H
+#define _STACKINFO_H 1
+
+#define _STACK_GROWS_DOWN 1
+
+#endif /* stackinfo.h */
+
+
diff --git a/libc/sysdeps/linux/kvx/bits/statfs.h b/libc/sysdeps/linux/kvx/bits/statfs.h
new file mode 100644
index 000000000..660ae8f5f
--- /dev/null
+++ b/libc/sysdeps/linux/kvx/bits/statfs.h
@@ -0,0 +1,64 @@
+/* Copyright (C) 1997, 2000 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ 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
+ <http://www.gnu.org/licenses/>. */
+
+#ifndef _SYS_STATFS_H
+# error "Never include <bits/statfs.h> directly; use <sys/statfs.h> instead."
+#endif
+
+#include <bits/types.h> /* for __fsid_t and __fsblkcnt_t*/
+
+struct statfs
+ {
+ long int f_type;
+ long int f_bsize;
+ __fsblkcnt64_t f_blocks;
+ __fsblkcnt64_t f_bfree;
+ __fsblkcnt64_t f_bavail;
+ __fsfilcnt64_t f_files;
+ __fsfilcnt64_t f_ffree;
+
+ /* Linux specials */
+ __fsid_t f_fsid;
+ long int f_namelen;
+ long int f_frsize;
+ long int f_flags;
+ long int f_spare[4];
+ };
+
+#ifdef __USE_LARGEFILE64
+struct statfs64
+ {
+ long int f_type;
+ long int f_bsize;
+ __fsblkcnt64_t f_blocks;
+ __fsblkcnt64_t f_bfree;
+ __fsblkcnt64_t f_files;
+ __fsfilcnt64_t f_ffree;
+ __fsfilcnt64_t f_bavail;
+
+ /* Linux specials */
+ __fsid_t f_fsid;
+ long int f_namelen;
+ long int f_frsize;
+ long int f_flags;
+ long int f_spare[4];
+ };
+#endif
+
+/* Tell code we have these members. */
+#define _STATFS_F_NAMELEN
+#define _STATFS_F_FRSIZE
diff --git a/libc/sysdeps/linux/kvx/bits/syscalls.h b/libc/sysdeps/linux/kvx/bits/syscalls.h
new file mode 100644
index 000000000..71bd5e4fe
--- /dev/null
+++ b/libc/sysdeps/linux/kvx/bits/syscalls.h
@@ -0,0 +1,80 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2018 Kalray Inc.
+ */
+
+#ifndef _BITS_SYSCALLS_H
+#define _BITS_SYSCALLS_H
+#ifndef _SYSCALL_H
+# error "Never use <bits/syscalls.h> directly; include <sys/syscall.h> instead."
+#endif
+
+#ifndef __ASSEMBLER__
+
+#define INTERNAL_SYSCALL_NCS(name, err, nr, args...) \
+ ({ \
+ register long _ret __asm__("r0"); \
+ register unsigned long _scno __asm__("r6") = name; \
+ LOAD_ARGS_##nr (args) \
+ __asm__ __volatile__("scall %[r_scno]" \
+ : "=r" (_ret) \
+ : [r_scno] "r" (_scno) ASM_ARGS_##nr \
+ : ASM_CLOBBER_##nr); \
+ _ret; \
+ })
+
+/* Mark all argument registers as per ABI in the range r1-r5 as
+ clobbered when they are not used for the invocation of the scall */
+#define ASM_CLOBBER_6 "cc", "memory", \
+ "r7", "r8", "r9", "r10", "r11", /* unused argument registers */ \
+ "r15", /* struct pointer */ \
+ "r16", "r17", /* veneer registers */ \
+ "r32", "r33", "r34", "r35", "r36", "r37", "r38", "r39", /* 32->63 are caller-saved */ \
+ "r40", "r41", "r42", "r43", "r44", "r45", "r46", "r47", \
+ "r48", "r49", "r50", "r51", "r52", "r53", "r54", "r55", \
+ "r56", "r57", "r58", "r59", "r60", "r61", "r62", "r63"
+#define ASM_CLOBBER_5 "r5", ASM_CLOBBER_6
+#define ASM_CLOBBER_4 "r4", ASM_CLOBBER_5
+#define ASM_CLOBBER_3 "r3", ASM_CLOBBER_4
+#define ASM_CLOBBER_2 "r2", ASM_CLOBBER_3
+#define ASM_CLOBBER_1 "r1", ASM_CLOBBER_2
+#define ASM_CLOBBER_0 ASM_CLOBBER_1
+
+#define LOAD_ARGS_0()
+#define ASM_ARGS_0
+
+#define LOAD_ARGS_1(a1) \
+ LOAD_ARGS_0(); \
+ _ret = (long) a1;
+#define ASM_ARGS_1 ASM_ARGS_0, "r"(_ret)
+
+#define LOAD_ARGS_2(a1, a2) \
+ LOAD_ARGS_1(a1); \
+ register long _a2 __asm__("r1") = (long) a2;
+#define ASM_ARGS_2 ASM_ARGS_1, "r"(_a2)
+
+#define LOAD_ARGS_3(a1, a2, a3) \
+ LOAD_ARGS_2(a1, a2); \
+ register long _a3 __asm__("r2") = (long) a3;
+#define ASM_ARGS_3 ASM_ARGS_2, "r"(_a3)
+
+#define LOAD_ARGS_4(a1, a2, a3, a4) \
+ LOAD_ARGS_3(a1, a2, a3); \
+ register long _a4 __asm__("r3") = (long) a4;
+#define ASM_ARGS_4 ASM_ARGS_3, "r"(_a4)
+
+#define LOAD_ARGS_5(a1, a2, a3, a4, a5) \
+ LOAD_ARGS_4(a1, a2, a3, a4); \
+ register long _a5 __asm__("r4") = (long) a5;
+#define ASM_ARGS_5 ASM_ARGS_4, "r"(_a5)
+
+#define LOAD_ARGS_6(a1, a2, a3, a4, a5, a6) \
+ LOAD_ARGS_5(a1, a2, a3, a4, a5); \
+ register long _a6 __asm__("r5") = (long) a6;
+#define ASM_ARGS_6 ASM_ARGS_5, "r"(_a6)
+
+#endif /* __ASSEMBLER__ */
+#endif /* _BITS_SYSCALLS_H */
diff --git a/libc/sysdeps/linux/kvx/bits/uClibc_arch_features.h b/libc/sysdeps/linux/kvx/bits/uClibc_arch_features.h
new file mode 100644
index 000000000..7aae2d7c3
--- /dev/null
+++ b/libc/sysdeps/linux/kvx/bits/uClibc_arch_features.h
@@ -0,0 +1,41 @@
+/*
+ * Track misc arch-specific features that aren't config options
+ */
+
+#ifndef _BITS_UCLIBC_ARCH_FEATURES_H
+#define _BITS_UCLIBC_ARCH_FEATURES_H
+
+/* instruction used when calling abort() to kill yourself */
+#define __UCLIBC_ABORT_INSTRUCTION__ "errop\n\t;;\n"
+
+/* can your target use syscall6() for mmap ? */
+#define __UCLIBC_MMAP_HAS_6_ARGS__
+
+/* does your target align 64bit values in register pairs ? (32bit arches only) */
+#undef __UCLIBC_SYSCALL_ALIGN_64BIT__
+
+/* does your target have a broken create_module() ? */
+#undef __UCLIBC_BROKEN_CREATE_MODULE__
+
+/* does your target have to worry about older [gs]etrlimit() ? */
+#undef __UCLIBC_HANDLE_OLDER_RLIMIT__
+
+/* does your target have an asm .set ? */
+#define __UCLIBC_HAVE_ASM_SET_DIRECTIVE__
+
+/* define if target supports .weak */
+#define __UCLIBC_HAVE_ASM_WEAK_DIRECTIVE__
+
+/* define if target supports .weakext */
+#undef __UCLIBC_HAVE_ASM_WEAKEXT_DIRECTIVE__
+
+/* define if target supports CFI pseudo ops */
+#undef __UCLIBC_HAVE_ASM_CFI_DIRECTIVES__
+
+/* define if target supports IEEE signed zero floats */
+#define __UCLIBC_HAVE_SIGNED_ZERO__
+
+/* only weird assemblers generally need this */
+#undef __UCLIBC_ASM_LINE_SEP__
+
+#endif /* _BITS_UCLIBC_ARCH_FEATURES_H */
diff --git a/libc/sysdeps/linux/kvx/bits/wordsize.h b/libc/sysdeps/linux/kvx/bits/wordsize.h
new file mode 100644
index 000000000..751c41ab7
--- /dev/null
+++ b/libc/sysdeps/linux/kvx/bits/wordsize.h
@@ -0,0 +1,9 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2018 Kalray Inc.
+ */
+
+#define __WORDSIZE 64
diff --git a/libc/sysdeps/linux/kvx/bsd-_setjmp.S b/libc/sysdeps/linux/kvx/bsd-_setjmp.S
new file mode 100644
index 000000000..a4c4f87b0
--- /dev/null
+++ b/libc/sysdeps/linux/kvx/bsd-_setjmp.S
@@ -0,0 +1,18 @@
+/*
+ * This file is subject to the terms and conditions of the LGPL V2.1
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2018 Kalray Inc.
+ */
+
+#include <sysdep.h>
+
+ENTRY(_setjmp)
+ /* Set second argument to 0 */
+ make $r1 = 0
+ ;;
+ goto HIDDEN_JUMPTARGET(__sigsetjmp)
+ ;;
+END(_setjmp)
+libc_hidden_def (_setjmp)
diff --git a/libc/sysdeps/linux/kvx/bsd-setjmp.S b/libc/sysdeps/linux/kvx/bsd-setjmp.S
new file mode 100644
index 000000000..d79f603d5
--- /dev/null
+++ b/libc/sysdeps/linux/kvx/bsd-setjmp.S
@@ -0,0 +1,17 @@
+/*
+ * This file is subject to the terms and conditions of the LGPL V2.1
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2018 Kalray Inc.
+ */
+
+#include <sysdep.h>
+
+ENTRY(setjmp)
+ /* Set second argument to 1 */
+ make $r1 = 1
+ ;;
+ goto HIDDEN_JUMPTARGET(__sigsetjmp)
+ ;;
+END(setjmp)
diff --git a/libc/sysdeps/linux/kvx/cachectl.c b/libc/sysdeps/linux/kvx/cachectl.c
new file mode 100644
index 000000000..9afeb44a1
--- /dev/null
+++ b/libc/sysdeps/linux/kvx/cachectl.c
@@ -0,0 +1,15 @@
+/*
+ * This file is subject to the terms and conditions of the LGPL V2.1
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2020 Kalray Inc.
+ */
+
+#include <sys/syscall.h>
+
+#ifdef __NR_cachectl
+# include <sys/cachectl.h>
+_syscall4(int, cachectl, void *, addr, size_t, len,
+ unsigned long, cache, unsigned long, flags)
+#endif
diff --git a/libc/sysdeps/linux/kvx/clone.S b/libc/sysdeps/linux/kvx/clone.S
new file mode 100644
index 000000000..71ea80a01
--- /dev/null
+++ b/libc/sysdeps/linux/kvx/clone.S
@@ -0,0 +1,100 @@
+/*
+ * This file is subject to the terms and conditions of the LGPL V2.1
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2018 Kalray Inc.
+ */
+
+#include <sysdep.h>
+#define _ERRNO_H 1
+#include <bits/errno.h>
+
+/**
+ * Clone system call implementation for kvx
+ * int clone (int (*fn)(void *arg), void *child_stack, int flags, void *arg,
+ * pid_t *ptid, struct user_desc *tls, pid_t *ctid);
+ * $r0 = fn
+ * $r1 = child_stack
+ * $r2 = flags
+ * $r3 = args
+ * $r4 = ptid
+ * $r5 = tls
+ * $r6 = ctid
+ *
+ * The kernel expects to find its arguments in the following order:
+ * sys_clone(unsigned long clone_flags, unsigned long newsp,
+ * int __user * parent_tidptr,
+ * int __user * child_tidptr,
+ * unsigned long tls)
+ *
+ * So we have to make a few modifications before calling
+ *
+ */
+
+ENTRY (__clone)
+ /* Check fn and stack to be non-null */
+ cb.deqz $r1? L(clone_einval_error)
+ /* Align child stack first */
+ andd $r1 = $r1, -32
+ ;;
+ cb.deqz $r0? L(clone_einval_error)
+ /* Prepare space for child arguments on stack and stay aligned */
+ addd $r1 = $r1, -32
+ ;;
+ /* Save fn ($r0) on child stack */
+ sd 0[$r1] = $r0
+ /* Set clone_flags */
+ copyd $r0 = $r2
+ ;;
+ /* Save args ($r3) on child stack */
+ sd 8[$r1] = $r3
+ /* Set parent_tidptr */
+ copyd $r2 = $r4
+ /* Set child_tidptr */
+ copyd $r3 = $r6
+ /* Set tls */
+ copyd $r4 = $r5
+ ;;
+ scall SYS_ify(clone)
+ ;;
+ /* If 0, then we are the child */
+ cb.deqz $r0, L(child_start)
+ ;;
+ /* Else we are the parent, and we need to check for errors */
+ cb.dltz $r0, L(clone_error)
+ ;;
+ /* No error ! Yeepa ! */
+ ret
+ ;;
+L(child_start):
+ /* get fn from stack */
+ ld $r1 = 0[$sp]
+ ;;
+ /* Get args from stack */
+ ld $r0 = 8[$sp]
+ addd $sp = $sp, 32
+ ;;
+ icall $r1
+ ;;
+ scall SYS_ify(exit)
+ ;;
+ /* We should never ever get here ! */
+ errop
+ ;;
+L(clone_einval_error):
+ make $r0 = -EINVAL
+ ;;
+L(clone_error):
+ /* goto __syscall_error but do not use call or $ra will be
+ * destroyed */
+ goto __syscall_error
+ ;;
+ /* We will not return here but to clone caller
+ * (stored in $ra) */
+ errop
+ ;;
+END(__clone)
+
+libc_hidden_def (__clone)
+weak_alias (__clone,clone)
diff --git a/libc/sysdeps/linux/kvx/crt1.S b/libc/sysdeps/linux/kvx/crt1.S
new file mode 100644
index 000000000..34501103e
--- /dev/null
+++ b/libc/sysdeps/linux/kvx/crt1.S
@@ -0,0 +1,83 @@
+/*
+ * This file is subject to the terms and conditions of the LGPL V2.1
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2018 Kalray Inc.
+ */
+
+/* Startup code compliant to the ELF KVX ABI */
+
+#include <libc-symbols.h>
+#include <features.h>
+
+.type main,@function
+.type __uClibc_main,@function
+
+/*
+ * When we enter this piece of code, the program stack has been
+ * layed out by the kernel like this:
+ * argc argument counter (integer)
+ * argv[0] program name (pointer)
+ * argv[1...N] program args (pointers)
+ * argv[argc-1] end of args (integer)
+ * NULL
+ * env[0...N] environment variables (pointers)
+ * NULL
+ *
+ * Moreover, when using dynamic loader, $r0 contains the rtld_fini
+ * address
+ *
+ * And we need to call the following function:
+ * __uClibc_main (int (*main) (int, char **, char **), int argc,
+ * char **argv, void (*init) (void), void (*fini) (void),
+ * void (*rtld_fini) (void), void *stack_end)
+ */
+.text
+.globl _start
+.type _start,@function
+.align 8
+C_SYMBOL_NAME(_start):
+ /* Load argc from stack */
+ ld $r1 = 0[$sp]
+ /* Load argv addr from stack */
+ addd $r2 = $sp, 0x8
+#ifdef __PIC__
+ pcrel $r7 = @gotaddr()
+#endif
+ ;;
+ /* $r0 contains rtld_fini when run by dynamic loader */
+ copyd $r5 = $r0
+ /* prepare __uClibc_main arg */
+#ifndef __PIC__
+ make $r3 = _init
+ make $r4 = _fini
+#endif
+ ;;
+ /* Align stack to 32-byte boundary */
+ andd $sp = $sp, -32
+ make $r8 = 0
+ make $fp = 0
+ /* prepare __uClibc_main arg */
+#ifdef __PIC__
+ ld $r3 = @got(_init)[$r7]
+#endif
+ ;;
+ /* Setup stack_end for __uClibc_main */
+ copyd $r6 = $sp
+ /* Clear compute status */
+ set $cs = $r8
+#ifdef __PIC__
+ ld $r4 = @got(_fini)[$r7]
+#endif
+ ;;
+#ifdef __PIC__
+ ld $r0 = @got(main)[$r7]
+#else
+ make $r0 = main
+#endif
+ goto __uClibc_main
+ ;;
+ /* We should never return ! */
+ errop
+ ;;
diff --git a/libc/sysdeps/linux/kvx/crti.S b/libc/sysdeps/linux/kvx/crti.S
new file mode 100644
index 000000000..cf5fb2b42
--- /dev/null
+++ b/libc/sysdeps/linux/kvx/crti.S
@@ -0,0 +1,31 @@
+/*
+ * This file is subject to the terms and conditions of the LGPL V2.1
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2018 Kalray Inc.
+ */
+
+ .section .init
+ .align 8
+ .global _init
+ .type _init,@function
+_init:
+ addd $sp = $sp, -32
+ get $r15 = $ra
+ ;;
+ sq 0[$sp] = $r14r15
+ copyd $fp = $sp
+ ;;
+
+ .section .fini
+ .align 8
+ .global _fini
+ .type _fini,@function
+_fini:
+ addd $sp = $sp, -32
+ get $r15 = $ra
+ ;;
+ sq 0[$sp] = $r14r15
+ copyd $fp = $sp
+ ;;
diff --git a/libc/sysdeps/linux/kvx/crtn.S b/libc/sysdeps/linux/kvx/crtn.S
new file mode 100644
index 000000000..c1ba48096
--- /dev/null
+++ b/libc/sysdeps/linux/kvx/crtn.S
@@ -0,0 +1,33 @@
+/*
+ * This file is subject to the terms and conditions of the LGPL V2.1
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2018 Kalray Inc.
+ */
+
+ .section .init
+ .align 8
+ .global _init
+ .type _init,@function
+ # EPILOGUE
+ lq $r14r15 = 0[$sp]
+ ;;
+ set $ra = $r15
+ addd $sp = $sp, 32
+ ;;
+ ret
+ ;;
+
+ .section .fini
+ .align 8
+ .global _fini
+ .type _fini,@function
+ # EPILOGUE
+ lq $r14r15 = 0[$sp]
+ ;;
+ set $ra = $r15
+ addd $sp = $sp, 32
+ ;;
+ ret
+ ;;
diff --git a/libc/sysdeps/linux/kvx/jmpbuf-offsets.h b/libc/sysdeps/linux/kvx/jmpbuf-offsets.h
new file mode 100644
index 000000000..27636fa33
--- /dev/null
+++ b/libc/sysdeps/linux/kvx/jmpbuf-offsets.h
@@ -0,0 +1,50 @@
+/*
+ * Private macros for accessing __jmp_buf contents. kvx version.
+ * This file is subject to the terms and conditions of the LGPL V2.1
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2019 Kalray Inc.
+ */
+
+#include <bits/wordsize.h>
+
+#if __WORDSIZE == 64
+
+/* We only need to save callee-saved registers plus stackpointer */
+# define JB_R12 0 /* stack pointer */
+# define JB_R14 1 /* frame pointer */
+# define JB_R18 2
+# define JB_R19 3
+# define JB_R20 4
+# define JB_R21 5
+# define JB_R22 6
+# define JB_R23 7
+# define JB_R24 8
+# define JB_R25 9
+# define JB_R26 10
+# define JB_R27 11
+# define JB_R28 12
+# define JB_R29 13
+# define JB_R30 14
+# define JB_R31 15
+
+#ifndef __ASSEMBLER__
+#include <setjmp.h>
+#include <stdint.h>
+#include <sysdep.h>
+
+static inline uintptr_t __attribute__ ((unused))
+_jmpbuf_sp (__jmp_buf jmpbuf)
+{
+ uintptr_t sp = jmpbuf[0].regs[JB_R12];
+ return sp;
+}
+#endif
+
+
+#else
+
+#error unsupported 32 bit wordsize
+
+#endif
diff --git a/libc/sysdeps/linux/kvx/jmpbuf-unwind.h b/libc/sysdeps/linux/kvx/jmpbuf-unwind.h
new file mode 100644
index 000000000..544da7012
--- /dev/null
+++ b/libc/sysdeps/linux/kvx/jmpbuf-unwind.h
@@ -0,0 +1,30 @@
+/*
+ * This file is subject to the terms and conditions of the LGPL V2.1
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2019 Kalray Inc.
+ */
+
+#include <setjmp.h>
+#include <jmpbuf-offsets.h>
+
+/* Test if longjmp to JMPBUF would unwind the frame
+ containing a local variable at ADDRESS. */
+#if __WORDSIZE == 64
+# define _JMPBUF_UNWINDS(jmpbuf, address) \
+ ((void *) (address) < (void *) (jmpbuf)[JB_R12])
+#else
+#error 32-bit unsupported
+#endif
+
+#ifdef __UCLIBC_HAS_THREADS_NATIVE__
+#include <stdint.h>
+#include <unwind.h>
+
+#define _JMPBUF_CFA_UNWINDS_ADJ(_jmpbuf, _context, _adj) \
+ _JMPBUF_UNWINDS_ADJ (_jmpbuf, (void *) _Unwind_GetCFA (_context), _adj)
+
+#define _JMPBUF_UNWINDS_ADJ(_jmpbuf, _address, _adj) \
+ ((uintptr_t) (_address) - (_adj) < (uintptr_t) _jmpbuf_sp(_jmpbuf) - (_adj))
+#endif
diff --git a/libc/sysdeps/linux/kvx/setjmp.S b/libc/sysdeps/linux/kvx/setjmp.S
new file mode 100644
index 000000000..1a8fce3fd
--- /dev/null
+++ b/libc/sysdeps/linux/kvx/setjmp.S
@@ -0,0 +1,59 @@
+/*
+ * This file is subject to the terms and conditions of the LGPL V2.1
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2018 Kalray Inc.
+ */
+
+#include <sysdep.h>
+
+#define _SETJMP_H
+#define _ASM
+#include <bits/setjmp.h>
+#include <libc-symbols.h>
+
+/**
+ * Simply save the user context to $r0 (jmpbuf)
+ *
+ * This function has the following prototype:
+ * int __sigsetjmp (r0 = jmp_buf env, r1 = int savemask)
+ * At the end, we call sigjmp_save
+ * int __sigjmp_save (sigjmp_buf env, int savemask)
+ * which will save signal mask if needed (set by setjmp/_setjmp)
+ *
+ * NOTE: since r0 and r1 are used by __sigjmp_save, we must not
+ * clobber them during this function
+ */
+ENTRY(__sigsetjmp)
+ /* Save r20r21r22r23 */
+ so (JMPBUF_REGS_OFFSET + QUAD_REG_SIZE)[$r0] = $r20r21r22r23
+ get $r40 = $ra
+ ;;
+ /* Save r24r25r26r27 */
+ so (JMPBUF_REGS_OFFSET + 2 * QUAD_REG_SIZE) [$r0] = $r24r25r26r27
+ get $r41 = $cs
+ ;;
+ copyd $r36 = $sp
+ copyd $r37 = $r14
+ copyd $r38 = $r18
+ copyd $r39 = $r19
+ ;;
+ /* Save r12(sp) r14 r18 r19 stored in $r36r37r38r39 */
+ so (JMPBUF_REGS_OFFSET)[$r0] = $r36r37r38r39
+ get $r32 = $lc
+ ;;
+ /* Save r28r29r30r31 */
+ so (JMPBUF_REGS_OFFSET + 3 * QUAD_REG_SIZE) [$r0] = $r28r29r30r31
+ get $r33 = $le
+ ;;
+ /* Save $cs and $ra */
+ sq JMPBUF_RA_CS_OFFSET[$r0] = $r40r41
+ get $r34 = $ls
+ ;;
+ /* Save $lc, $le and $ls */
+ so JMPBUF_LC_LE_LS_OFFSET[$r0] = $r32r33r34r35
+ goto __sigjmp_save
+ ;;
+END(__sigsetjmp)
+libc_hidden_def(__sigsetjmp)
diff --git a/libc/sysdeps/linux/kvx/sys/cachectl.h b/libc/sysdeps/linux/kvx/sys/cachectl.h
new file mode 100644
index 000000000..707de263e
--- /dev/null
+++ b/libc/sysdeps/linux/kvx/sys/cachectl.h
@@ -0,0 +1,21 @@
+/*
+ * This file is subject to the terms and conditions of the LGPL V2.1
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2020 Kalray Inc.
+ */
+
+#ifndef _SYS_CACHECTL_H
+#define _SYS_CACHECTL_H 1
+
+#include <asm/cachectl.h>
+
+__BEGIN_DECLS
+
+extern int cachectl(void *addr, size_t len, unsigned long cache,
+ unsigned long flags);
+
+__END_DECLS
+
+#endif
diff --git a/libc/sysdeps/linux/kvx/sys/procfs.h b/libc/sysdeps/linux/kvx/sys/procfs.h
new file mode 100644
index 000000000..bbbfb838e
--- /dev/null
+++ b/libc/sysdeps/linux/kvx/sys/procfs.h
@@ -0,0 +1,101 @@
+/* Copyright (C) 1996, 1997, 1999 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ 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; see the file COPYING.LIB. If
+ not, see <http://www.gnu.org/licenses/>.  */
+
+#ifndef _SYS_PROCFS_H
+#define _SYS_PROCFS_H 1
+
+/* This is somewhat modelled after the file of the same name on SVR4
+ systems. It provides a definition of the core file format for ELF
+ used on Linux. It doesn't have anything to do with the /proc file
+ system, even though Linux has one.
+
+ Anyway, the whole purpose of this file is for GDB and GDB only.
+ Don't read too much into it. Don't use it for anything other than
+ GDB unless you know what you are doing. */
+
+#include <features.h>
+#include <sys/time.h>
+#include <sys/types.h>
+#include <sys/user.h>
+
+__BEGIN_DECLS
+
+/* Type for a general-purpose register. */
+typedef unsigned long elf_greg_t;
+/* No FP registers for kvx. */
+typedef struct {} elf_fpregset_t;
+
+/* And the whole bunch of them. We could have used `struct
+ pt_regs' directly in the typedef, but tradition says that
+ the register set is an array, which does have some peculiar
+ semantics, so leave it that way. */
+#define ELF_NGREG (sizeof (struct user_regs_struct) / sizeof(elf_greg_t))
+typedef elf_greg_t elf_gregset_t[ELF_NGREG];
+
+/* Signal info. */
+struct elf_siginfo
+ {
+ int si_signo; /* Signal number. */
+ int si_code; /* Extra code. */
+ int si_errno; /* Errno. */
+ };
+
+/* Definitions to generate Intel SVR4-like core files. These mostly
+ have the same names as the SVR4 types with "elf_" tacked on the
+ front to prevent clashes with Linux definitions, and the typedef
+ forms have been avoided. This is mostly like the SVR4 structure,
+ but more Linuxy, with things that Linux does not support and which
+ GDB doesn't really use excluded. */
+
+struct elf_prstatus
+ {
+ short int pr_cursig; /* Current signal. */
+ __pid_t pr_pid;
+ elf_gregset_t pr_reg; /* GP registers. */
+ };
+
+
+#define ELF_PRARGSZ (80) /* Number of chars for args. */
+
+struct elf_prpsinfo
+ {
+ char pr_fname[16]; /* Filename of executable. */
+ char pr_psargs[ELF_PRARGSZ]; /* Initial part of arg list. */
+ };
+
+/* The rest of this file provides the types for emulation of the
+ Solaris <proc_service.h> interfaces that should be implemented by
+ users of libthread_db. */
+
+/* Addresses. */
+typedef void *psaddr_t;
+
+/* Register sets. Linux has different names. */
+typedef elf_gregset_t prgregset_t;
+typedef elf_fpregset_t prfpregset_t;
+
+/* We don't have any differences between processes and threads,
+ therefore have only one PID type. */
+typedef __pid_t lwpid_t;
+
+/* Process status and info. In the end we do provide typedefs for them. */
+typedef struct elf_prstatus prstatus_t;
+typedef struct elf_prpsinfo prpsinfo_t;
+
+__END_DECLS
+
+#endif /* sys/procfs.h */
diff --git a/libc/sysdeps/linux/kvx/sys/ucontext.h b/libc/sysdeps/linux/kvx/sys/ucontext.h
new file mode 100644
index 000000000..548892389
--- /dev/null
+++ b/libc/sysdeps/linux/kvx/sys/ucontext.h
@@ -0,0 +1,29 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2018 Kalray Inc.
+ */
+
+#ifndef _SYS_UCONTEXT_H
+#define _SYS_UCONTEXT_H 1
+
+#include <signal.h>
+#include <bits/sigcontext.h>
+
+/* Type for general register. */
+typedef unsigned long greg_t;
+
+/* Number of general registers. */
+#define NGREG 64
+
+typedef struct ucontext {
+ unsigned long uc_flags;
+ struct ucontext *uc_link;
+ stack_t uc_stack;
+ struct sigcontext uc_mcontext;
+ sigset_t uc_sigmask; /* mask last for extensibility */
+} ucontext_t;
+
+#endif /* sys/ucontext.h */
diff --git a/libc/sysdeps/linux/kvx/sys/user.h b/libc/sysdeps/linux/kvx/sys/user.h
new file mode 100644
index 000000000..2e228ff19
--- /dev/null
+++ b/libc/sysdeps/linux/kvx/sys/user.h
@@ -0,0 +1,27 @@
+/*
+ * This file is subject to the terms and conditions of the LGPL V2.1
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2019 Kalray Inc.
+ */
+
+#ifndef _SYS_USER_H
+#define _SYS_USER_H 1
+
+struct user_regs_struct
+{
+ /* GPR */
+ unsigned long long gpr_regs[64];
+
+ /* SFR */
+ unsigned long lc;
+ unsigned long le;
+ unsigned long ls;
+ unsigned long ra;
+
+ unsigned long cs;
+ unsigned long spc;
+};
+
+#endif
diff --git a/libc/sysdeps/linux/kvx/sysdep.h b/libc/sysdeps/linux/kvx/sysdep.h
new file mode 100644
index 000000000..944fedead
--- /dev/null
+++ b/libc/sysdeps/linux/kvx/sysdep.h
@@ -0,0 +1,49 @@
+/*
+ * This file is subject to the terms and conditions of the LGPL V2.1
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2018 Kalray Inc.
+ */
+
+#ifndef _LINUX_KVX_SYSDEP_H
+#define _LINUX_KVX_SYSDEP_H 1
+
+#include <common/sysdep.h>
+
+#define SYS_ify(syscall_name) (__NR_##syscall_name)
+
+#ifdef __ASSEMBLER__
+
+# define _ENTRY(name) \
+ .align 8; \
+ .globl C_SYMBOL_NAME(name); \
+ .func C_SYMBOL_NAME(name); \
+ .type C_SYMBOL_NAME(name), @function; \
+C_SYMBOL_NAME(name): \
+ cfi_startproc;
+
+/* Define an entry point visible from C. */
+# ifdef PIC
+# define ENTRY(name) \
+ .pic \
+ _ENTRY(name)
+
+# else
+# define ENTRY(name) _ENTRY(name)
+# endif
+
+#endif
+
+/* Local label name for asm code. */
+# ifndef L
+# define L(name) $L##name
+# endif
+
+#undef END
+#define END(name) \
+ cfi_endproc; \
+ .endfunc; \
+ .size C_SYMBOL_NAME(name), .-C_SYMBOL_NAME(name)
+
+#endif //_LINUX_KVX_SYSDEP_H
diff --git a/libc/sysdeps/linux/kvx/vfork.S b/libc/sysdeps/linux/kvx/vfork.S
new file mode 100644
index 000000000..7c6a17133
--- /dev/null
+++ b/libc/sysdeps/linux/kvx/vfork.S
@@ -0,0 +1,47 @@
+/*
+ * This file is subject to the terms and conditions of the LGPL V2.1
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2018 Kalray Inc.
+ */
+
+#include <sys/syscall.h>
+#include <sysdep.h>
+
+/* We do not want COMPAT to be enabled in our kernel, hence vfork
+ * is not available. Use clone to do the same job with appropriate flags */
+#define _SIGNAL_H
+#include <bits/signum.h> /* For SIGCHLD */
+
+#define CLONE_VM 0x00000100
+#define CLONE_VFORK 0x00004000
+#define CLONE_FLAGS_FOR_VFORK (CLONE_VM|CLONE_VFORK|SIGCHLD)
+
+ENTRY(__vfork)
+ make $r0 = CLONE_FLAGS_FOR_VFORK
+ /* Not sure if needed to zero-out other parameters but better
+ * be safe than sorry */
+ make $r1 = 0
+ make $r2 = 0
+ ;;
+ make $r3 = 0
+ make $r4 = 0
+ ;;
+ scall SYS_ify(clone)
+ ;;
+ /* If PID < 0 then it's an error, else, simply return */
+ cb.dltz $r0 ? err
+ ;;
+ ret
+ ;;
+L(err):
+ goto __syscall_error
+ ;;
+ /* Never return */
+ errop
+ ;;
+END(__vfork)
+
+weak_alias(__vfork,vfork)
+libc_hidden_def(vfork)