From 490e84f5e146485a26dea2f41279a4ff13aaca05 Mon Sep 17 00:00:00 2001 From: Waldemar Brodkorb Date: Sun, 4 Feb 2018 15:34:18 +0000 Subject: tile: add basic support for tilegx This adds basic support for tile architecture. Only static binaries, no ld.so or threading support. Tested with qemu-tilegx only. --- libc/sysdeps/linux/tile/crtn.S | 54 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 54 insertions(+) create mode 100644 libc/sysdeps/linux/tile/crtn.S (limited to 'libc/sysdeps/linux/tile/crtn.S') diff --git a/libc/sysdeps/linux/tile/crtn.S b/libc/sysdeps/linux/tile/crtn.S new file mode 100644 index 000000000..a5e743977 --- /dev/null +++ b/libc/sysdeps/linux/tile/crtn.S @@ -0,0 +1,54 @@ +/* Special .init and .fini section support for tile. + Copyright (C) 2012-2018 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. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file with other + programs, and to distribute those programs without any restriction + coming from the use of this file. (The GNU Lesser General Public + License restrictions do apply in other respects; for example, they + cover modification of the file, and distribution when not linked + into another program.) + + Note that people who make modified versions of this file are not + obligated to grant this special exception for their modified + versions; it is their choice whether to do so. The GNU Lesser + General Public License gives permission to release a modified + version without this exception; this exception also makes it + possible to release a modified version which carries forward this + exception. + + 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 + . */ + +/* crtn.S puts function epilogues in the .init and .fini sections + corresponding to the prologues in crti.S. */ + +#include + + .section .init,"ax",@progbits + ADDI_PTR r29, sp, (2 * REGSIZE) + { + ADDI_PTR sp, sp, (2 * REGSIZE) + ld lr, r29 + } + jrp lr + + .section .fini,"ax",@progbits + ADDI_PTR r29, sp, (2 * REGSIZE) + { + ADDI_PTR sp, sp, (2 * REGSIZE) + ld lr, r29 + } + jrp lr -- cgit v1.2.3