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1 | /* Configuration file for ARM GNU/Linux FDPIC EABI targets. | |
2 | Copyright (C) 2018,2019 Free Software Foundation, Inc. | |
3 | Contributed by STMicroelectronics. | |
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 | /* On uClibc EABI GNU/Linux, we want to force -mfdpic by default, | |
22 | which also means we produce PIE code by default. */ | |
23 | #undef FDPIC_CC1_SPEC | |
24 | #define FDPIC_CC1_SPEC \ | |
25 | "%{!mno-fdpic:-mfdpic %{!fno-PIE:%{!fpie:%{!fPIC:%{!fpic: -fPIE}}}}}" | |
26 | ||
27 | /* Add --fdpic assembler flag by default. */ | |
28 | #undef TARGET_FDPIC_ASM_SPEC | |
29 | #define TARGET_FDPIC_ASM_SPEC "%{!mno-fdpic: --fdpic}" | |
30 | ||
31 | /* TARGET_BIG_ENDIAN_DEFAULT is set in | |
32 | config.gcc for big endian configurations. */ | |
33 | #if TARGET_BIG_ENDIAN_DEFAULT | |
34 | #define TARGET_FDPIC_LINKER_EMULATION "armelfb_linux_fdpiceabi" | |
35 | #else | |
36 | #define TARGET_FDPIC_LINKER_EMULATION "armelf_linux_fdpiceabi" | |
37 | #endif | |
38 | ||
39 | /* Unless we generate a shared library or a relocatable object, we | |
40 | force -pie. */ | |
41 | /* -static is not supported, because we have to define the | |
42 | dynamic-linker, as we have some relocations to resolve at load | |
43 | time. We do not generate an error in case the user explictly passes | |
44 | the -dynamic-linker option to the linker. */ | |
45 | #undef SUBTARGET_EXTRA_LINK_SPEC | |
46 | #define SUBTARGET_EXTRA_LINK_SPEC \ | |
47 | "%{!mno-fdpic: -m " TARGET_FDPIC_LINKER_EMULATION \ | |
48 | "%{!shared:%{!r: -pie}} }" \ | |
49 | "%{mno-fdpic: -m " TARGET_LINKER_EMULATION "}" \ | |
50 | "%{!r:%{!mno-fdpic: -z now}}" | |
51 | ||
52 | #undef STARTFILE_SPEC | |
53 | #define STARTFILE_SPEC "%{!mno-fdpic:%{!shared:crtreloc.o%s}} " \ | |
54 | LINUX_OR_ANDROID_LD (GNU_USER_TARGET_STARTFILE_SPEC, ANDROID_STARTFILE_SPEC) |