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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/jmpbuf-offsets.h
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/jmpbuf-offsets.h')
-rw-r--r--libc/sysdeps/linux/tile/jmpbuf-offsets.h60
1 files changed, 60 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/tile/jmpbuf-offsets.h b/libc/sysdeps/linux/tile/jmpbuf-offsets.h
new file mode 100644
index 000000000..f0bf47058
--- /dev/null
+++ b/libc/sysdeps/linux/tile/jmpbuf-offsets.h
@@ -0,0 +1,60 @@
+/* Copyright (C) 2011-2018 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
+ <http://www.gnu.org/licenses/>. */
+
+/* We don't use most of these symbols; they are here for documentation. */
+#define JB_R30 0
+#define JB_R31 1
+#define JB_R32 2
+#define JB_R33 3
+#define JB_R34 4
+#define JB_R35 5
+#define JB_R36 6
+#define JB_R37 7
+#define JB_R38 8
+#define JB_R39 9
+#define JB_R40 10
+#define JB_R41 11
+#define JB_R42 12
+#define JB_R43 13
+#define JB_R44 14
+#define JB_R45 15
+#define JB_R46 16
+#define JB_R47 17
+#define JB_R48 18
+#define JB_R49 19
+#define JB_R50 20
+#define JB_R51 21
+#define JB_FP 22 /* r52 */
+#define JB_TP 23 /* r53 */
+#define JB_SP 24 /* r54 */
+#define JB_PC 25 /* normally LR, r55 */
+#define JB_ICS 26 /* interrupt critical section bit */
+
+/* We save space for some extra state to accommodate future changes. */
+#define JB_LEN 32 /* number of words */
+
+#define JB_SIZE (JB_LEN * REGSIZE)
+
+/* Helper macro used by all the setjmp/longjmp assembly code. */
+#define FOR_EACH_CALLEE_SAVED_REG(f) \
+ .no_require_canonical_reg_names; f(r30); f(r31); \
+ f(r32); f(r33); f(r34); f(r35); f(r36); f(r37); f(r38); f(r39); \
+ f(r40); f(r41); f(r42); f(r43); f(r44); f(r45); f(r46); f(r47); \
+ f(r48); f(r49); f(r50); f(r51); f(r52); f(r53); f(r54); f(r55)
+
+/* Helper for generic ____longjmp_chk(). */
+#define JB_FRAME_ADDRESS(buf) \
+ ((void *) (unsigned long) (buf[JB_SP]))