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cf3cd43d | 1 | /* Definitions of target machine of Andes NDS32 cpu for GNU compiler |
7adcbafe | 2 | Copyright (C) 2012-2022 Free Software Foundation, Inc. |
cf3cd43d CJW |
3 | Contributed by Andes Technology Corporation. |
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 | ||
22 | /* ------------------------------------------------------------------------ */ | |
23 | ||
24 | #define TARGET_LINUX_ABI 0 | |
25 | ||
26 | /* In the configure stage we may use options --enable-default-relax, | |
27 | --enable-Os-default-ifc and --enable-Os-default-ex9. They effect | |
28 | the default spec of passing --relax, --mifc, and --mex9 to linker. | |
29 | We use NDS32_RELAX_SPEC, NDS32_IFC_SPEC, and NDS32_EX9_SPEC | |
30 | so that we can customize them conveniently. */ | |
31 | #define LINK_SPEC \ | |
32 | " %{G*}" \ | |
33 | " %{mbig-endian:-EB} %{mlittle-endian:-EL}" \ | |
34 | " %{shared:-shared}" \ | |
35 | NDS32_RELAX_SPEC | |
36 | ||
37 | #define LIB_SPEC \ | |
38 | " -lc -lgloss" | |
39 | ||
40 | #define LIBGCC_SPEC \ | |
41 | " -lgcc" | |
42 | ||
43 | /* The option -mno-ctor-dtor can disable constructor/destructor feature | |
44 | by applying different crt stuff. In the convention, crt0.o is the | |
45 | startup file without constructor/destructor; | |
46 | crt1.o, crti.o, crtbegin.o, crtend.o, and crtn.o are the | |
47 | startup files with constructor/destructor. | |
48 | Note that crt0.o, crt1.o, crti.o, and crtn.o are provided | |
49 | by newlib/mculib/glibc/ublic, while crtbegin.o and crtend.o are | |
50 | currently provided by GCC for nds32 target. | |
51 | ||
52 | For nds32 target so far: | |
53 | If -mno-ctor-dtor, we are going to link | |
54 | "crt0.o [user objects]". | |
55 | If -mctor-dtor, we are going to link | |
56 | "crt1.o crtbegin1.o [user objects] crtend1.o". | |
57 | ||
58 | Note that the TARGET_DEFAULT_CTOR_DTOR would effect the | |
59 | default behavior. Check gcc/config.gcc for more information. */ | |
60 | #ifdef TARGET_DEFAULT_CTOR_DTOR | |
61 | #define STARTFILE_SPEC \ | |
62 | " %{!mno-ctor-dtor:crt1.o%s;:crt0.o%s}" \ | |
63 | " %{!mno-ctor-dtor:crtbegin1.o%s}" \ | |
64 | " %{mcrt-arg:crtarg.o%s}" | |
65 | #define ENDFILE_SPEC \ | |
66 | " %{!mno-ctor-dtor:crtend1.o%s}" | |
67 | #else | |
68 | #define STARTFILE_SPEC \ | |
69 | " %{mctor-dtor|coverage:crt1.o%s;:crt0.o%s}" \ | |
70 | " %{mctor-dtor|coverage:crtbegin1.o%s}" \ | |
71 | " %{mcrt-arg:crtarg.o%s}" | |
72 | #define ENDFILE_SPEC \ | |
73 | " %{mctor-dtor|coverage:crtend1.o%s}" | |
74 | #endif | |
75 | ||
76 | #define STARTFILE_CXX_SPEC \ | |
77 | " %{!mno-ctor-dtor:crt1.o%s;:crt0.o%s}" \ | |
78 | " %{!mno-ctor-dtor:crtbegin1.o%s}" \ | |
79 | " %{mcrt-arg:crtarg.o%s}" | |
80 | #define ENDFILE_CXX_SPEC \ | |
81 | " %{!mno-ctor-dtor:crtend1.o%s}" |