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comparison gcc/config/nds32/elf.h @ 131:84e7813d76e9

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gcc-8.2
author mir3636
date Thu, 25 Oct 2018 07:37:49 +0900
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111:04ced10e8804 131:84e7813d76e9
1 /* Definitions of target machine of Andes NDS32 cpu for GNU compiler
2 Copyright (C) 2012-2014 Free Software Foundation, Inc.
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}"