]>
Commit | Line | Data |
---|---|---|
3c9b82ba NC |
1 | # This shell script emits C code -*- C -*- |
2 | # to keep track of the machine type of Z80 object files | |
3 | # It does some substitutions. | |
b3adc24a | 4 | # Copyright (C) 2005-2020 Free Software Foundation, Inc. |
f96b4a7b NC |
5 | # This file is part of the GNU Binutils. |
6 | # | |
7 | # This program is free software; you can redistribute it and/or modify | |
8 | # it under the terms of the GNU General Public License as published by | |
9 | # the Free Software Foundation; either version 3 of the License, or | |
10 | # (at your option) any later version. | |
11 | # | |
12 | # This program is distributed in the hope that it will be useful, | |
13 | # but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | # GNU General Public License for more details. | |
16 | # | |
17 | # You should have received a copy of the GNU General Public License | |
18 | # along with this program; if not, write to the Free Software | |
19 | # Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, | |
20 | # MA 02110-1301, USA. | |
3c9b82ba | 21 | |
92b93329 | 22 | fragment <<EOF |
3c9b82ba | 23 | /* --- \begin{z80.em} */ |
9fc0b501 SB |
24 | |
25 | #include "elf/z80.h" | |
3c9b82ba | 26 | |
92b93329 | 27 | static void |
9fc0b501 SB |
28 | gld${EMULATION_NAME}_after_open (void); |
29 | ||
30 | static int result_mach_type; | |
31 | ||
32 | struct z80_mach_info | |
3c9b82ba | 33 | { |
9fc0b501 SB |
34 | unsigned eflags; |
35 | unsigned bfd_mach; | |
36 | const int *compat; /* back compatible machines */ | |
37 | }; | |
3c9b82ba | 38 | |
9fc0b501 SB |
39 | static const int |
40 | back_compat_z80[] = {bfd_mach_z80, -1}; | |
3c9b82ba | 41 | |
9fc0b501 SB |
42 | static const int |
43 | back_compat_z180[] = {bfd_mach_z180, bfd_mach_z80, -1}; | |
44 | ||
45 | static const int | |
46 | back_compat_ez80[] = {bfd_mach_ez80_z80, bfd_mach_z180, bfd_mach_z80, -1}; | |
47 | ||
48 | static const struct z80_mach_info | |
49 | z80_mach_info[] = | |
3c9b82ba | 50 | { |
9fc0b501 SB |
51 | { EF_Z80_MACH_Z80, bfd_mach_z80, NULL }, |
52 | { EF_Z80_MACH_Z80, bfd_mach_z80strict, back_compat_z80 }, | |
53 | { EF_Z80_MACH_Z80, bfd_mach_z80full, back_compat_z80 }, | |
54 | { EF_Z80_MACH_Z180, bfd_mach_z180, back_compat_z80 }, | |
55 | { EF_Z80_MACH_EZ80_Z80, bfd_mach_ez80_z80, back_compat_z180 }, | |
56 | { EF_Z80_MACH_EZ80_ADL, bfd_mach_ez80_adl, back_compat_ez80 }, | |
57 | { EF_Z80_MACH_Z80N, bfd_mach_z80n, back_compat_z80 }, | |
58 | { EF_Z80_MACH_GBZ80, bfd_mach_gbz80, NULL }, | |
59 | { EF_Z80_MACH_R800, bfd_mach_r800, back_compat_z80 } | |
60 | }; | |
61 | /* | |
62 | static const struct z80_mach_info * | |
63 | z80_mach_info_by_eflags (unsigned int eflags) | |
64 | { | |
65 | const struct z80_mach_info *p; | |
66 | const struct z80_mach_info *e; | |
3c9b82ba | 67 | |
9fc0b501 SB |
68 | eflags &= EF_Z80_MACH_MSK; |
69 | p = &z80_mach_info[0]; | |
70 | e = &z80_mach_info[sizeof(z80_mach_info)/sizeof(*z80_mach_info)]; | |
71 | for (; p != e; ++p) | |
72 | if (eflags == p->eflags) | |
73 | return p; | |
74 | return NULL; | |
75 | }*/ | |
76 | ||
77 | static const struct z80_mach_info * | |
78 | z80_mach_info_by_mach (unsigned int bfd_mach) | |
79 | { | |
80 | const struct z80_mach_info *p; | |
81 | const struct z80_mach_info *e; | |
82 | ||
83 | p = &z80_mach_info[0]; | |
84 | e = &z80_mach_info[sizeof(z80_mach_info)/sizeof(*z80_mach_info)]; | |
85 | for (; p != e; ++p) | |
86 | if (bfd_mach == p->bfd_mach) | |
87 | return p; | |
88 | return NULL; | |
89 | } | |
90 | ||
91 | static const struct z80_mach_info * | |
92 | z80_combine_mach (const struct z80_mach_info *m1, | |
93 | const struct z80_mach_info *m2) | |
94 | { | |
95 | int i; | |
96 | int mach; | |
97 | if (m1->compat != NULL) | |
98 | for (i = 0; (mach = m1->compat[i]) >= 0; ++i) | |
99 | if ((unsigned)mach == m2->bfd_mach) | |
100 | return m1; | |
101 | if (m2->compat != NULL) | |
102 | for (i = 0; (mach = m2->compat[i]) >= 0; ++i) | |
103 | if ((unsigned)mach == m1->bfd_mach) | |
104 | return m2; | |
105 | /* incompatible mach */ | |
106 | return NULL; | |
3c9b82ba NC |
107 | } |
108 | ||
109 | /* Set the machine type of the output file based on result_mach_type. */ | |
110 | static void | |
9fc0b501 | 111 | z80_after_open (void) |
3c9b82ba | 112 | { |
9fc0b501 SB |
113 | const struct z80_mach_info *mach = NULL; |
114 | bfd *abfd; | |
3c9b82ba | 115 | |
9fc0b501 SB |
116 | /* For now, make sure all object files are of the same architecture. |
117 | We may try to merge object files with different architecture together. */ | |
118 | for (abfd = link_info.input_bfds; abfd != NULL; abfd = abfd->link.next) | |
3c9b82ba | 119 | { |
9fc0b501 SB |
120 | const struct z80_mach_info *new_mach; |
121 | /*new_mach = z80_mach_info_by_eflags (elf_elfheader (abfd)->e_flags);*/ | |
122 | new_mach = z80_mach_info_by_mach(bfd_get_mach (abfd)); | |
123 | if (mach == NULL) | |
124 | mach = new_mach; | |
125 | else if (mach != new_mach) | |
126 | mach = z80_combine_mach (mach, new_mach); | |
127 | if (mach == NULL) | |
128 | einfo (_("%F%P: %pB: Instruction sets of object files incompatible\n"), | |
129 | abfd); | |
130 | } | |
131 | if (mach != NULL) | |
132 | { | |
133 | bfd_set_arch_mach (link_info.output_bfd, bfd_arch_z80, mach->bfd_mach); | |
134 | result_mach_type = mach->bfd_mach; | |
3c9b82ba | 135 | } |
6655dba2 | 136 | else |
9fc0b501 SB |
137 | einfo (_("%F%P: %pB: Unknown machine type\n"), |
138 | abfd); | |
6655dba2 | 139 | |
9fc0b501 SB |
140 | /* Call the standard elf routine. */ |
141 | gld${EMULATION_NAME}_after_open (); | |
3c9b82ba | 142 | } |
9fc0b501 SB |
143 | |
144 | #ifndef TARGET_IS_elf32z80 | |
145 | static void | |
146 | gld${EMULATION_NAME}_after_open (void) | |
147 | { | |
148 | } | |
149 | #endif | |
150 | ||
3c9b82ba NC |
151 | /* --- \end{z80.em} */ |
152 | EOF | |
9fc0b501 SB |
153 | |
154 | LDEMUL_AFTER_OPEN=z80_after_open |