diff options
| author | Yann Sionneau <ysionneau@kalray.eu> | 2020-10-02 16:24:55 +0200 |
|---|---|---|
| committer | Waldemar Brodkorb <wbx@openadk.org> | 2020-10-02 19:10:36 +0200 |
| commit | 672a303852353ba9299f6f50190fca8b3abe4c1d (patch) | |
| tree | f204ea8dc0b5a3e4b2bd4251b8daf5f0783ae260 /libc/sysdeps/linux/kvx/setjmp.S | |
| parent | 4acf6f072cbc255b0b0d6cfd598a100f95d84f2a (diff) | |
kvx: add support for kvx arch to uClibc-ng
This commit adds support for Kalray VLIW family (kvx)
Kalray kv3 core is embedded in Kalray Coolidge SoC. This core which is the
third of the KV family has the following features:
32/64 bits execution mode
6-issue VLIW architecture
64 x 64bits general purpose registers
SIMD instructions
little-endian
In order to build a usable toolchain, build scripts are provided at the
following address: https://github.com/kalray/build-scripts.
Kalray uses FOSS which is available at https://github.com/kalray
This includes Linux kernel, uClibc-ng, gcc, binutils, etc.
Signed-off-by: Clément Léger <cleger@kalray.eu>
Signed-off-by: Guillaume Thouvenin <gthouvenin@kalray.eu>
Signed-off-by: Laurent Thevenoux <lthevenoux@kalray.eu>
Signed-off-by: Marc Poulhies <mpoulhies@kalray.eu>
Signed-off-by: Marius Gligor <mgligor@kalray.eu>
Signed-off-by: Yann Sionneau <ysionneau@kalray.eu>
Diffstat (limited to 'libc/sysdeps/linux/kvx/setjmp.S')
| -rw-r--r-- | libc/sysdeps/linux/kvx/setjmp.S | 59 |
1 files changed, 59 insertions, 0 deletions
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) |