1 /* Copyright (C) 2011 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3 Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, write to the Free
17 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
20 #include <sysdeps/generic/sysdep.h>
21 #include <bits/wordsize.h>
24 #if defined __ASSEMBLER__ || defined REQUEST_ASSEMBLER_MACROS
26 #include <feedback-asm.h>
28 /* Make use of .type and .size directives. */
29 #define ASM_TYPE_DIRECTIVE(name,typearg) .type name,typearg;
30 #define ASM_SIZE_DIRECTIVE(name) .size name,.-name;
32 /* Define an entry point visible from C. */
34 ASM_GLOBAL_DIRECTIVE C_SYMBOL_NAME(name); \
35 ASM_TYPE_DIRECTIVE (C_SYMBOL_NAME(name),@function) \
44 ASM_SIZE_DIRECTIVE(name)
46 /* Since C identifiers are not normally prefixed with an underscore
47 on this system, the asm identifier `syscall_error' intrudes on the
48 C name space. Make sure we use an innocuous name. */
49 #define syscall_error __syscall_error
50 #define mcount __mcount
52 /* If compiled for profiling, call `mcount' at the start of each function.
53 The mcount code requires the caller PC in r10. The `mcount' function
54 sets lr back to the value r10 had on entry when it returns. */
56 #define CALL_MCOUNT { move r10, lr; jal mcount }
58 #define CALL_MCOUNT /* Do nothing. */
61 /* Local label name for asm code. */
62 #define L(name) .L##name
64 /* Specify the size in bytes of a machine register. */
71 /* Support a limited form of shared assembly between tile and tilegx.
72 The presumption is that LD/ST are used for manipulating registers.
73 Since opcode parsing is case-insensitive, we don't need to provide
74 definitions for these on tilegx. */
90 /* Provide "pointer-oriented" instruction variants. These differ not
91 just for tile vs tilegx, but also for tilegx -m64 vs -m32. */
92 #if defined __tilegx__ && __WORDSIZE == 32
94 #define ADDI_PTR addxi
95 #define ADDLI_PTR addxli
98 #define SHL_PTR_ADD shl2add
101 #define ADDI_PTR addi
102 #define ADDLI_PTR addli
106 #define SHL_PTR_ADD shl3add
108 #define SHL_PTR_ADD s2a
112 #endif /* __ASSEMBLER__ */