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authorWaldemar Brodkorb <wbx@uclibc-ng.org>2018-02-04 15:34:18 +0000
committerWaldemar Brodkorb <wbx@uclibc-ng.org>2018-03-12 20:11:14 +0100
commit490e84f5e146485a26dea2f41279a4ff13aaca05 (patch)
tree03b9eab7297c5ad571b548b5ed916f17be78bf48 /libc/sysdeps/linux/tile/crtn.S
parent6e627523ee4b3fc00c30dcff74c2adf93e2b6840 (diff)
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.
Diffstat (limited to 'libc/sysdeps/linux/tile/crtn.S')
-rw-r--r--libc/sysdeps/linux/tile/crtn.S54
1 files changed, 54 insertions, 0 deletions
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
+ <http://www.gnu.org/licenses/>. */
+
+/* crtn.S puts function epilogues in the .init and .fini sections
+ corresponding to the prologues in crti.S. */
+
+#include <sysdep.h>
+
+ .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