jdk-sandbox: src/hotspot/cpu/arm/disassembler_arm.hpp@e46fe26d7f77 (annotated)

42664 29142a56c193 8168503: JEP 297: Unified arm32/arm64 Port bobv parents: diff changeset	1	/*
53244 9807daeb47c4 8216167: Update include guards to reflect correct directories coleenp parents: 47216 diff changeset	2	* Copyright (c) 2008, 2019, Oracle and/or its affiliates. All rights reserved.
42664 29142a56c193 8168503: JEP 297: Unified arm32/arm64 Port bobv parents: diff changeset	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
29142a56c193 8168503: JEP 297: Unified arm32/arm64 Port bobv parents: diff changeset	4	*
29142a56c193 8168503: JEP 297: Unified arm32/arm64 Port bobv parents: diff changeset	5	* This code is free software; you can redistribute it and/or modify it
29142a56c193 8168503: JEP 297: Unified arm32/arm64 Port bobv parents: diff changeset	6	* under the terms of the GNU General Public License version 2 only, as
29142a56c193 8168503: JEP 297: Unified arm32/arm64 Port bobv parents: diff changeset	7	* published by the Free Software Foundation.
29142a56c193 8168503: JEP 297: Unified arm32/arm64 Port bobv parents: diff changeset	8	*
29142a56c193 8168503: JEP 297: Unified arm32/arm64 Port bobv parents: diff changeset	9	* This code is distributed in the hope that it will be useful, but WITHOUT
29142a56c193 8168503: JEP 297: Unified arm32/arm64 Port bobv parents: diff changeset	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
29142a56c193 8168503: JEP 297: Unified arm32/arm64 Port bobv parents: diff changeset	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
29142a56c193 8168503: JEP 297: Unified arm32/arm64 Port bobv parents: diff changeset	12	* version 2 for more details (a copy is included in the LICENSE file that
29142a56c193 8168503: JEP 297: Unified arm32/arm64 Port bobv parents: diff changeset	13	* accompanied this code).
29142a56c193 8168503: JEP 297: Unified arm32/arm64 Port bobv parents: diff changeset	14	*
29142a56c193 8168503: JEP 297: Unified arm32/arm64 Port bobv parents: diff changeset	15	* You should have received a copy of the GNU General Public License version
29142a56c193 8168503: JEP 297: Unified arm32/arm64 Port bobv parents: diff changeset	16	* 2 along with this work; if not, write to the Free Software Foundation,
29142a56c193 8168503: JEP 297: Unified arm32/arm64 Port bobv parents: diff changeset	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
29142a56c193 8168503: JEP 297: Unified arm32/arm64 Port bobv parents: diff changeset	18	*
29142a56c193 8168503: JEP 297: Unified arm32/arm64 Port bobv parents: diff changeset	19	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
29142a56c193 8168503: JEP 297: Unified arm32/arm64 Port bobv parents: diff changeset	20	* or visit www.oracle.com if you need additional information or have any
29142a56c193 8168503: JEP 297: Unified arm32/arm64 Port bobv parents: diff changeset	21	* questions.
29142a56c193 8168503: JEP 297: Unified arm32/arm64 Port bobv parents: diff changeset	22	*
29142a56c193 8168503: JEP 297: Unified arm32/arm64 Port bobv parents: diff changeset	23	*/
29142a56c193 8168503: JEP 297: Unified arm32/arm64 Port bobv parents: diff changeset	24
53244 9807daeb47c4 8216167: Update include guards to reflect correct directories coleenp parents: 47216 diff changeset	25	#ifndef CPU_ARM_DISASSEMBLER_ARM_HPP
9807daeb47c4 8216167: Update include guards to reflect correct directories coleenp parents: 47216 diff changeset	26	#define CPU_ARM_DISASSEMBLER_ARM_HPP
42664 29142a56c193 8168503: JEP 297: Unified arm32/arm64 Port bobv parents: diff changeset	27
29142a56c193 8168503: JEP 297: Unified arm32/arm64 Port bobv parents: diff changeset	28	static int pd_instruction_alignment() {
29142a56c193 8168503: JEP 297: Unified arm32/arm64 Port bobv parents: diff changeset	29	return sizeof(int);
29142a56c193 8168503: JEP 297: Unified arm32/arm64 Port bobv parents: diff changeset	30	}
29142a56c193 8168503: JEP 297: Unified arm32/arm64 Port bobv parents: diff changeset	31
29142a56c193 8168503: JEP 297: Unified arm32/arm64 Port bobv parents: diff changeset	32	static const char* pd_cpu_opts() {
29142a56c193 8168503: JEP 297: Unified arm32/arm64 Port bobv parents: diff changeset	33	return "";
29142a56c193 8168503: JEP 297: Unified arm32/arm64 Port bobv parents: diff changeset	34	}
29142a56c193 8168503: JEP 297: Unified arm32/arm64 Port bobv parents: diff changeset	35
54960 e46fe26d7f77 8213084: Rework and enhance Print[Opto]Assembly output lucy parents: 53244 diff changeset	36	// Returns address of n-th instruction preceding addr,
e46fe26d7f77 8213084: Rework and enhance Print[Opto]Assembly output lucy parents: 53244 diff changeset	37	// NULL if no preceding instruction can be found.
e46fe26d7f77 8213084: Rework and enhance Print[Opto]Assembly output lucy parents: 53244 diff changeset	38	// On ARM, we assume a constant instruction length.
e46fe26d7f77 8213084: Rework and enhance Print[Opto]Assembly output lucy parents: 53244 diff changeset	39	// It might be beneficial to check "is_readable" as we do on ppc and s390.
e46fe26d7f77 8213084: Rework and enhance Print[Opto]Assembly output lucy parents: 53244 diff changeset	40	static address find_prev_instr(address addr, int n_instr) {
e46fe26d7f77 8213084: Rework and enhance Print[Opto]Assembly output lucy parents: 53244 diff changeset	41	return addr - Assembler::InstructionSize*n_instr;
e46fe26d7f77 8213084: Rework and enhance Print[Opto]Assembly output lucy parents: 53244 diff changeset	42	}
e46fe26d7f77 8213084: Rework and enhance Print[Opto]Assembly output lucy parents: 53244 diff changeset	43
e46fe26d7f77 8213084: Rework and enhance Print[Opto]Assembly output lucy parents: 53244 diff changeset	44	// special-case instruction decoding.
e46fe26d7f77 8213084: Rework and enhance Print[Opto]Assembly output lucy parents: 53244 diff changeset	45	// There may be cases where the binutils disassembler doesn't do
e46fe26d7f77 8213084: Rework and enhance Print[Opto]Assembly output lucy parents: 53244 diff changeset	46	// the perfect job. In those cases, decode_instruction0 may kick in
e46fe26d7f77 8213084: Rework and enhance Print[Opto]Assembly output lucy parents: 53244 diff changeset	47	// and do it right.
e46fe26d7f77 8213084: Rework and enhance Print[Opto]Assembly output lucy parents: 53244 diff changeset	48	// If nothing had to be done, just return "here", otherwise return "here + instr_len(here)"
e46fe26d7f77 8213084: Rework and enhance Print[Opto]Assembly output lucy parents: 53244 diff changeset	49	static address decode_instruction0(address here, outputStream* st, address virtual_begin = NULL) {
e46fe26d7f77 8213084: Rework and enhance Print[Opto]Assembly output lucy parents: 53244 diff changeset	50	return here;
e46fe26d7f77 8213084: Rework and enhance Print[Opto]Assembly output lucy parents: 53244 diff changeset	51	}
e46fe26d7f77 8213084: Rework and enhance Print[Opto]Assembly output lucy parents: 53244 diff changeset	52
e46fe26d7f77 8213084: Rework and enhance Print[Opto]Assembly output lucy parents: 53244 diff changeset	53	// platform-specific instruction annotations (like value of loaded constants)
e46fe26d7f77 8213084: Rework and enhance Print[Opto]Assembly output lucy parents: 53244 diff changeset	54	static void annotate(address pc, outputStream* st) { };
e46fe26d7f77 8213084: Rework and enhance Print[Opto]Assembly output lucy parents: 53244 diff changeset	55
53244 9807daeb47c4 8216167: Update include guards to reflect correct directories coleenp parents: 47216 diff changeset	56	#endif // CPU_ARM_DISASSEMBLER_ARM_HPP

author	lucy
	Tue, 21 May 2019 15:51:35 +0200
changeset 54960	e46fe26d7f77
parent 53244	9807daeb47c4
permissions	-rw-r--r--