1 /*
2 * Copyright (c) 2016, 2019, Oracle and/or its affiliates. All rights reserved.
3 * Copyright (c) 2016 SAP SE. All rights reserved.
4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
5 *
6 * This code is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License version 2 only, as
8 * published by the Free Software Foundation.
9 *
10 * This code is distributed in the hope that it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
13 * version 2 for more details (a copy is included in the LICENSE file that
14 * accompanied this code).
15 *
16 * You should have received a copy of the GNU General Public License version
17 * 2 along with this work; if not, write to the Free Software Foundation,
18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
19 *
20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
21 * or visit www.oracle.com if you need additional information or have any
22 * questions.
23 *
24 */
25
26 #ifndef CPU_S390_DISASSEMBLER_S390_HPP
27 #define CPU_S390_DISASSEMBLER_S390_HPP
28
29 static int pd_instruction_alignment() {
30 return 1;
31 }
32
33 static const char* pd_cpu_opts() {
34 return "zarch";
35 }
36
37 #endif // CPU_S390_DISASSEMBLER_S390_HPP
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1 /*
2 * Copyright (c) 2016, 2019, Oracle and/or its affiliates. All rights reserved.
3 * Copyright (c) 2016, 2019 SAP SE. All rights reserved.
4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
5 *
6 * This code is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License version 2 only, as
8 * published by the Free Software Foundation.
9 *
10 * This code is distributed in the hope that it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
13 * version 2 for more details (a copy is included in the LICENSE file that
14 * accompanied this code).
15 *
16 * You should have received a copy of the GNU General Public License version
17 * 2 along with this work; if not, write to the Free Software Foundation,
18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
19 *
20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
21 * or visit www.oracle.com if you need additional information or have any
22 * questions.
23 *
24 */
25
26 #ifndef CPU_S390_DISASSEMBLER_S390_HPP
27 #define CPU_S390_DISASSEMBLER_S390_HPP
28
29 static int pd_instruction_alignment() {
30 return 2;
31 }
32
33 static const char* pd_cpu_opts() {
34 return "s390";
35 }
36
37 static bool valid_opcodes[256];
38 static bool is_valid_opcode_at(address here);
39
40 // Find preceding instruction.
41 //
42 // Starting at the passed location, the n-th preceding (towards lower addresses)
43 // location is searched, the contents of which - if interpreted as
44 // instructions - has the passed location as n-th successor.
45 // - If multiple such locations exist between (here-n*instr_maxlen()) and here,
46 // the most distant location is selected.
47 // - If no such location exists, NULL is returned. The caller should then
48 // terminate its search and react properly.
49 static address find_prev_instr(address here, int n_instr);
50 static int count_instr(address begin, address end);
51
52 // special-case instruction decoding.
53 // There may be cases where the binutils disassembler doesn't do
54 // the perfect job. In those cases, decode_instruction0 may kick in
55 // and do it right.
56 // If nothing had to be done, just return "here", otherwise return "here + instr_len(here)"
57 static address decode_instruction0(address here, outputStream* st, address virtual_begin = NULL);
58
59 // platform-specific instruction annotations (like value of loaded constants)
60 static void annotate(address pc, outputStream* st);
61
62 #endif // CPU_S390_DISASSEMBLER_S390_HPP
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