Commit | Line | Data |
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e23eba97 | 1 | # This shell script emits a C file. -*- C -*- |
82704155 | 2 | # Copyright (C) 2004-2019 Free Software Foundation, Inc. |
e23eba97 NC |
3 | # |
4 | # This file is part of the GNU Binutils. | |
5 | # | |
6 | # This program is free software; you can redistribute it and/or modify | |
7 | # it under the terms of the GNU General Public License as published by | |
8 | # the Free Software Foundation; either version 3 of the License, or | |
9 | # (at your option) any later version. | |
10 | # | |
11 | # This program is distributed in the hope that it will be useful, | |
12 | # but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | # GNU General Public License for more details. | |
15 | # | |
16 | # You should have received a copy of the GNU General Public License | |
17 | # along with this program; if not, write to the Free Software | |
18 | # Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, | |
19 | # MA 02110-1301, USA. | |
20 | ||
21 | fragment <<EOF | |
22 | ||
23 | #include "ldmain.h" | |
24 | #include "ldctor.h" | |
25 | #include "elf/riscv.h" | |
26 | #include "elfxx-riscv.h" | |
27 | ||
28 | static void | |
29 | riscv_elf_before_allocation (void) | |
30 | { | |
31 | gld${EMULATION_NAME}_before_allocation (); | |
32 | ||
33 | if (link_info.discard == discard_sec_merge) | |
34 | link_info.discard = discard_l; | |
35 | ||
202d116e AS |
36 | if (!bfd_link_relocatable (&link_info)) |
37 | { | |
38 | /* We always need at least some relaxation to handle code alignment. */ | |
39 | if (RELAXATION_DISABLED_BY_USER) | |
40 | TARGET_ENABLE_RELAXATION; | |
41 | else | |
42 | ENABLE_RELAXATION; | |
43 | } | |
e23eba97 | 44 | |
ff6f4d9b | 45 | link_info.relax_pass = 3; |
e23eba97 NC |
46 | } |
47 | ||
48 | static void | |
49 | gld${EMULATION_NAME}_after_allocation (void) | |
50 | { | |
51 | int need_layout = 0; | |
52 | ||
53 | /* Don't attempt to discard unused .eh_frame sections until the final link, | |
54 | as we can't reliably tell if they're used until after relaxation. */ | |
55 | if (!bfd_link_relocatable (&link_info)) | |
56 | { | |
57 | need_layout = bfd_elf_discard_info (link_info.output_bfd, &link_info); | |
58 | if (need_layout < 0) | |
59 | { | |
d003af55 | 60 | einfo (_("%X%P: .eh_frame/.stab edit: %E\n")); |
e23eba97 NC |
61 | return; |
62 | } | |
63 | } | |
64 | ||
d871d478 | 65 | ldelf_map_segments (need_layout); |
e23eba97 NC |
66 | } |
67 | ||
770aa8a3 JW |
68 | /* This is a convenient point to tell BFD about target specific flags. |
69 | After the output has been created, but before inputs are read. */ | |
70 | ||
71 | static void | |
72 | riscv_create_output_section_statements (void) | |
73 | { | |
74 | /* See PR 22920 for an example of why this is necessary. */ | |
75 | if (strstr (bfd_get_target (link_info.output_bfd), "riscv") == NULL) | |
76 | { | |
77 | /* The RISC-V backend needs special fields in the output hash structure. | |
78 | These will only be created if the output format is a RISC-V format, | |
79 | hence we do not support linking and changing output formats at the | |
80 | same time. Use a link followed by objcopy to change output formats. */ | |
81 | einfo (_("%F%P: error: cannot change output format" | |
82 | " whilst linking %s binaries\n"), "RISC-V"); | |
83 | return; | |
84 | } | |
85 | } | |
86 | ||
e23eba97 NC |
87 | EOF |
88 | ||
89 | LDEMUL_BEFORE_ALLOCATION=riscv_elf_before_allocation | |
90 | LDEMUL_AFTER_ALLOCATION=gld${EMULATION_NAME}_after_allocation | |
770aa8a3 | 91 | LDEMUL_CREATE_OUTPUT_SECTION_STATEMENTS=riscv_create_output_section_statements |