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dd552284 | 1 | /* Definitions for TILEPro running Linux-based GNU systems with ELF. |
7adcbafe | 2 | Copyright (C) 2011-2022 Free Software Foundation, Inc. |
dd552284 WL |
3 | Contributed by Walter Lee (walt@tilera.com) |
4 | ||
5 | This file is part of GCC. | |
6 | ||
7 | GCC is free software; you can redistribute it and/or modify it | |
8 | under the terms of the GNU General Public License as published | |
9 | by the Free Software Foundation; either version 3, or (at your | |
10 | option) any later version. | |
11 | ||
12 | GCC is distributed in the hope that it will be useful, but WITHOUT | |
13 | ANY WARRANTY; without even the implied warranty of MERCHANTABILITY | |
14 | or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public | |
15 | License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with GCC; see the file COPYING3. If not see | |
19 | <http://www.gnu.org/licenses/>. */ | |
20 | ||
21 | #undef CPP_SPEC | |
22 | #define CPP_SPEC "%{pthread:-D_REENTRANT}" | |
23 | ||
24 | #undef LINK_SPEC | |
25 | #define LINK_SPEC "\ | |
26 | %{shared:-shared} \ | |
27 | %{!shared: \ | |
28 | %{!static: \ | |
29 | %{rdynamic:-export-dynamic} \ | |
30 | -dynamic-linker /lib/ld.so.1} \ | |
31 | %{static:-static}}" | |
32 | ||
33 | #define NO_PROFILE_COUNTERS 1 | |
34 | ||
35 | #undef MCOUNT_NAME | |
36 | #define MCOUNT_NAME "__mcount" | |
37 | ||
38 | #undef NEED_INDICATE_EXEC_STACK | |
39 | #define NEED_INDICATE_EXEC_STACK 1 | |
40 | ||
41 | #ifdef TARGET_LIBC_PROVIDES_SSP | |
42 | /* TILEPro glibc provides __stack_chk_guard two pointer-size words before | |
43 | tp. */ | |
44 | #define TARGET_THREAD_SSP_OFFSET (-2 * GET_MODE_SIZE (ptr_mode)) | |
45 | #endif | |
46 | ||
47 | /* For __clear_cache in libgcc2.c. */ | |
48 | #ifdef IN_LIBGCC2 | |
49 | ||
ba6be749 WL |
50 | /* Use the minimum page size of 4K. Alternatively we can call |
51 | getpagesize() but it introduces a libc dependence. | |
52 | See Linux arch/tile/include/uapi/arch/icache.h for more commentary. */ | |
dd552284 | 53 | #undef CLEAR_INSN_CACHE |
ba6be749 WL |
54 | #define CLEAR_INSN_CACHE(BEG, END) \ |
55 | { \ | |
56 | long size = (long) (END) - (long) (BEG); \ | |
57 | if (size) \ | |
58 | { \ | |
59 | const char *start = (const char *) ((unsigned long) (BEG) & -64L);\ | |
60 | const char *end = start + (size < 16384 ? size : 16384) - 1; \ | |
61 | long num_passes = 4; \ | |
62 | __insn_mf (); \ | |
63 | do \ | |
64 | { \ | |
65 | const char *p; \ | |
66 | for (p = start; p <= end; p += 64) \ | |
67 | __insn_icoh (p); \ | |
68 | start += 4096; \ | |
69 | end += 4096; \ | |
70 | } \ | |
71 | while (--num_passes > 0); \ | |
72 | __insn_drain (); \ | |
73 | } \ | |
74 | } | |
dd552284 WL |
75 | |
76 | #else | |
77 | ||
78 | /* define CLEAR_INSN_CACHE so that gcc knows to expand __builtin__clear_cache | |
79 | to the libraray call. */ | |
80 | #undef CLEAR_INSN_CACHE | |
81 | #define CLEAR_INSN_CACHE 1 | |
82 | ||
83 | #endif |