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h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=JmQ0o0AOEt12wjIj69o0UKPGB/FBnk4P+Oa5HBoC7zk=; b=f7reudp+008OxKwYrhIo8megHxC1xWkywSW0+KKmo11LWtPR3l5Z6paq U39jw/unjHFYa/S2oZBVWp8fDBb2ZGvO2I+hM6aQwQ+g6jxslVEEF8570 CS9taJndoaS54x6Xcao/yraoR6ct2A3gRbCITWCaX7/7KzNiFxx36b+jl Y=; From: Taylor Simpson To: qemu-devel@nongnu.org Subject: [RFC PATCH v2 06/67] Hexagon Disassembler Date: Fri, 28 Feb 2020 10:43:02 -0600 Message-Id: <1582908244-304-7-git-send-email-tsimpson@quicinc.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1582908244-304-1-git-send-email-tsimpson@quicinc.com> References: <1582908244-304-1-git-send-email-tsimpson@quicinc.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: FreeBSD 9.x [fuzzy] X-Received-From: 199.106.114.38 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: riku.voipio@iki.fi, richard.henderson@linaro.org, laurent@vivier.eu, Taylor Simpson , philmd@redhat.com, aleksandar.m.mail@gmail.com Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) The Hexagon disassembler calls disassemble_hexagon to decode a packet and format it for printing Signed-off-by: Taylor Simpson --- include/disas/dis-asm.h | 1 + disas/hexagon.c | 62 +++++++++++++++++++++++++++++++++++++++++++++= ++++ disas/Makefile.objs | 1 + 3 files changed, 64 insertions(+) create mode 100644 disas/hexagon.c diff --git a/include/disas/dis-asm.h b/include/disas/dis-asm.h index f87f468..a7fa82d 100644 --- a/include/disas/dis-asm.h +++ b/include/disas/dis-asm.h @@ -436,6 +436,7 @@ int print_insn_little_nios2 (bfd_vma, disassemble_i= nfo*); int print_insn_xtensa (bfd_vma, disassemble_info*); int print_insn_riscv32 (bfd_vma, disassemble_info*); int print_insn_riscv64 (bfd_vma, disassemble_info*); +int print_insn_hexagon (bfd_vma, disassemble_info*); =20 #if 0 /* Fetch the disassembler for a given BFD, if that support is available. = */ diff --git a/disas/hexagon.c b/disas/hexagon.c new file mode 100644 index 0000000..6ee8653 --- /dev/null +++ b/disas/hexagon.c @@ -0,0 +1,62 @@ +/* + * Copyright(c) 2019-2020 Qualcomm Innovation Center, Inc. All Rights Res= erved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see . + */ + +/* + * QEMU Hexagon Disassembler + */ + +#include "qemu/osdep.h" +#include "disas/dis-asm.h" +#include "target/hexagon/cpu_bits.h" + +/* + * We will disassemble a packet with up to 4 instructions, so we need + * a hefty size buffer. + */ +#define PACKET_BUFFER_LEN 1028 + +int print_insn_hexagon(bfd_vma memaddr, struct disassemble_info *info) +{ + uint32_t words[PACKET_WORDS_MAX]; + int len, slen; + char buf[PACKET_BUFFER_LEN]; + int status; + int i; + + for (i =3D 0; i < PACKET_WORDS_MAX; i++) { + status =3D (*info->read_memory_func)(memaddr + i * sizeof(uint32_t= ), + (bfd_byte *)&words[i], + sizeof(uint32_t), info); + if (status) { + if (i > 0) { + break; + } + (*info->memory_error_func)(status, memaddr, info); + return status; + } + } + + len =3D disassemble_hexagon(words, i, buf, PACKET_BUFFER_LEN); + slen =3D strlen(buf); + if (buf[slen - 1] =3D=3D '\n') { + buf[slen - 1] =3D '\0'; + } + (*info->fprintf_func)(info->stream, "%s", buf); + + return len; +} + diff --git a/disas/Makefile.objs b/disas/Makefile.objs index 3c1cdce..0e86964 100644 --- a/disas/Makefile.objs +++ b/disas/Makefile.objs @@ -24,6 +24,7 @@ common-obj-$(CONFIG_SH4_DIS) +=3D sh4.o common-obj-$(CONFIG_SPARC_DIS) +=3D sparc.o common-obj-$(CONFIG_LM32_DIS) +=3D lm32.o common-obj-$(CONFIG_XTENSA_DIS) +=3D xtensa.o +common-obj-$(CONFIG_HEXAGON_DIS) +=3D hexagon.o =20 # TODO: As long as the TCG interpreter and its generated code depend # on the QEMU target, we cannot compile the disassembler here. --=20 2.7.4