From 9595fb8cd595028bece5174e7eddf660ae3dcc10 Mon Sep 17 00:00:00 2001 From: Waldemar Brodkorb Date: Thu, 31 May 2018 01:04:17 +0200 Subject: risc-v: initial 64 bit port, static only (no TLS/NPTL) Only a simple hello world is tested in qemu system emulation. --- libc/sysdeps/linux/riscv64/__longjmp.S | 57 ++++++++++++++++++++++++++++++++++ 1 file changed, 57 insertions(+) create mode 100644 libc/sysdeps/linux/riscv64/__longjmp.S (limited to 'libc/sysdeps/linux/riscv64/__longjmp.S') diff --git a/libc/sysdeps/linux/riscv64/__longjmp.S b/libc/sysdeps/linux/riscv64/__longjmp.S new file mode 100644 index 000000000..6079f98c1 --- /dev/null +++ b/libc/sysdeps/linux/riscv64/__longjmp.S @@ -0,0 +1,57 @@ +/* longjmp, RISC-V version. + Copyright (C) 1996-2018 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 + . */ + +#include +#include + +ENTRY (__longjmp) + REG_L ra, 0*SZREG(a0) + REG_L s0, 1*SZREG(a0) + REG_L s1, 2*SZREG(a0) + REG_L s2, 3*SZREG(a0) + REG_L s3, 4*SZREG(a0) + REG_L s4, 5*SZREG(a0) + REG_L s5, 6*SZREG(a0) + REG_L s6, 7*SZREG(a0) + REG_L s7, 8*SZREG(a0) + REG_L s8, 9*SZREG(a0) + REG_L s9, 10*SZREG(a0) + REG_L s10,11*SZREG(a0) + REG_L s11,12*SZREG(a0) + REG_L sp, 13*SZREG(a0) + +#ifndef __riscv_float_abi_soft + FREG_L fs0, 14*SZREG+ 0*SZFREG(a0) + FREG_L fs1, 14*SZREG+ 1*SZFREG(a0) + FREG_L fs2, 14*SZREG+ 2*SZFREG(a0) + FREG_L fs3, 14*SZREG+ 3*SZFREG(a0) + FREG_L fs4, 14*SZREG+ 4*SZFREG(a0) + FREG_L fs5, 14*SZREG+ 5*SZFREG(a0) + FREG_L fs6, 14*SZREG+ 6*SZFREG(a0) + FREG_L fs7, 14*SZREG+ 7*SZFREG(a0) + FREG_L fs8, 14*SZREG+ 8*SZFREG(a0) + FREG_L fs9, 14*SZREG+ 9*SZFREG(a0) + FREG_L fs10,14*SZREG+10*SZFREG(a0) + FREG_L fs11,14*SZREG+11*SZFREG(a0) +#endif + + seqz a0, a1 + add a0, a0, a1 # a0 = (a1 == 0) ? 1 : a1 + ret + +END (__longjmp) +libc_hidden_def(__longjmp) -- cgit v1.2.3