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crash-gcore-command/0002-add-riscv64-support.patch
EastDong 639f44667c add riscv64 support
2023-07-28 11:10:43 +08:00

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From 21b7d6492cf0a77a74c09a370c206df623930c43 Mon Sep 17 00:00:00 2001
From: wangjunqiang <wangjunqiang@iscas.ac.cn>
Date: Fri, 16 Sep 2022 10:37:54 +0800
Subject: [PATCH] add riscv64 support
---
src/gcore.mk | 10 ++++
src/libgcore/gcore_coredump.c | 2 +-
src/libgcore/gcore_defs.h | 47 ++++++++++++++++--
src/libgcore/gcore_riscv64.c | 91 +++++++++++++++++++++++++++++++++++
4 files changed, 145 insertions(+), 5 deletions(-)
create mode 100644 src/libgcore/gcore_riscv64.c
diff --git a/src/gcore.mk b/src/gcore.mk
index 4af292b..e986871 100644
--- a/src/gcore.mk
+++ b/src/gcore.mk
@@ -60,6 +60,12 @@ ifeq ($(shell arch), ppc64le)
ARCH=SUPPORTED
endif
+ifeq ($(shell arch), riscv64)
+ TARGET=RISCV64
+ TARGET_CFLAGS=
+ ARCH=SUPPORTED
+endif
+
ifeq ($(shell /bin/ls /usr/include/crash/defs.h 2>/dev/null), /usr/include/crash/defs.h)
INCDIR=/usr/include/crash
endif
@@ -99,6 +105,10 @@ ifneq (,$(findstring $(TARGET), PPC64))
GCORE_CFILES += libgcore/gcore_ppc64.c
endif
+ifneq (,$(findstring $(TARGET), RISCV64))
+GCORE_CFILES += libgcore/gcore_riscv64.c
+endif
+
GCORE_OFILES = $(patsubst %.c,%.o,$(GCORE_CFILES))
COMMON_CFLAGS=-Wall -I$(INCDIR) -I./libgcore -fPIC -D$(TARGET) \
diff --git a/src/libgcore/gcore_coredump.c b/src/libgcore/gcore_coredump.c
index 3d0c0fc..e9ba91a 100644
--- a/src/libgcore/gcore_coredump.c
+++ b/src/libgcore/gcore_coredump.c
@@ -752,7 +752,7 @@ fill_prstatus_note(struct elf_note_info *info, struct task_context *tc,
struct memelfnote *memnote)
{
struct elf_prstatus *prstatus;
-#if defined(X86) || defined(X86_64) || defined(ARM) || defined(MIPS) || defined(PPC64)
+#if defined(X86) || defined(X86_64) || defined(ARM) || defined(MIPS) || defined(PPC64) || defined(RISCV64)
struct user_regs_struct *regs = (struct user_regs_struct *)memnote->data;
#endif
#ifdef ARM64
diff --git a/src/libgcore/gcore_defs.h b/src/libgcore/gcore_defs.h
index df87851..32d6553 100644
--- a/src/libgcore/gcore_defs.h
+++ b/src/libgcore/gcore_defs.h
@@ -166,6 +166,34 @@
#define Elf_Nhdr Elf64_Nhdr
#endif
+#ifdef RISCV64
+#define ELF_EXEC_PAGESIZE PAGESIZE()
+
+#define ELF_MACHINE EM_RISCV
+#define ELF_OSABI ELFOSABI_NONE
+
+#define ELF_CLASS ELFCLASS64
+
+#ifndef ELF_DATA
+#if __BYTE_ORDER == __LITTLE_ENDIAN
+#define ELF_DATA ELFDATA2LSB
+#else
+#define ELF_DATA ELFDATA2MSB
+#endif
+#endif
+
+#define ELF_ARCH EM_RISCV
+
+#define Elf_Half Elf64_Half
+#define Elf_Word Elf64_Word
+#define Elf_Off Elf64_Off
+
+#define Elf_Ehdr Elf64_Ehdr
+#define Elf_Phdr Elf64_Phdr
+#define Elf_Shdr Elf64_Shdr
+#define Elf_Nhdr Elf64_Nhdr
+#endif
+
#ifndef NT_FILE
#define NT_FILE 0x46494c45
#endif
@@ -329,6 +357,11 @@ extern void gcore_default_regsets_init(void);
#define REGSET_VIEW_MACHINE EM_PPC64
#endif
+#ifdef RISCV64
+#define REGSET_VIEW_NAME "riscv64"
+#define REGSET_VIEW_MACHINE EM_RISCV
+#endif
+
extern int gcore_arch_get_fp_valid(struct task_context *tc);
/*
@@ -669,7 +702,13 @@ struct user_regs_struct {
};
#endif
-#if defined(X86) || defined(X86_64) || defined(ARM) || defined(MIPS)
+#ifdef RISCV64
+struct user_regs_struct {
+ unsigned long gregs[32];
+};
+#endif
+
+#if defined(X86) || defined(X86_64) || defined(ARM) || defined(MIPS) || defined(RISCV64)
typedef ulong elf_greg_t;
#define ELF_NGREG (sizeof(struct user_regs_struct) / sizeof(elf_greg_t))
typedef elf_greg_t elf_gregset_t[ELF_NGREG];
@@ -678,7 +717,7 @@ typedef elf_greg_t elf_gregset_t[ELF_NGREG];
#if defined(X86) || defined(ARM) || defined(MIPS)
#define PAGE_SIZE 4096
#endif
-#if defined(ARM64) || defined(PPC64)
+#if defined(ARM64) || defined(PPC64) || defined(RISCV64)
#define PAGE_SIZE PAGESIZE()
#endif
@@ -837,12 +876,12 @@ typedef unsigned short __kernel_old_uid_t;
typedef unsigned short __kernel_old_gid_t;
#endif
-#if defined(X86_64) || defined(ARM64) || defined(PPC64)
+#if defined(X86_64) || defined(ARM64) || defined(PPC64) || defined(RISCV64)
typedef unsigned int __kernel_uid_t;
typedef unsigned int __kernel_gid_t;
#endif
-#ifdef ARM64
+#if defined(ARM64) || defined(RISCV64)
#ifndef __kernel_old_uid_t
typedef __kernel_uid_t __kernel_old_uid_t;
typedef __kernel_gid_t __kernel_old_gid_t;
diff --git a/src/libgcore/gcore_riscv64.c b/src/libgcore/gcore_riscv64.c
new file mode 100644
index 0000000..7578cdf
--- /dev/null
+++ b/src/libgcore/gcore_riscv64.c
@@ -0,0 +1,91 @@
+/* gcore_riscv64.c
+ *
+ * Copyright (C) 2014 Red Hat, Inc. All rights reserved
+ *
+ * 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.
+ */
+
+#ifdef RISCV64
+
+#include "defs.h"
+#include <gcore_defs.h>
+#include <stdint.h>
+#include <elf.h>
+
+static int gpr_get(struct task_context *target,
+ const struct user_regset *regset,
+ unsigned int size, void *buf)
+{
+ struct user_regs_struct *regs = (struct user_regs_struct *)buf;
+
+ BZERO(regs, sizeof(*regs));
+
+ readmem(machdep->get_stacktop(target->task) -
+ SIZE(pt_regs), KVADDR,
+ regs, SIZE(pt_regs), "gpr_get: pt_regs",
+ gcore_verbose_error_handle());
+
+ return 0;
+}
+
+enum gcore_regset {
+ REGSET_GPR,
+};
+
+static struct user_regset riscv64_regsets[] = {
+ [REGSET_GPR] = {
+ .core_note_type = NT_PRSTATUS,
+ .name = "CORE",
+ .size = ELF_NGREG * sizeof(unsigned int),
+ .get = gpr_get,
+ },
+};
+
+static const struct user_regset_view riscv64_regset_view = {
+ .name = "riscv64",
+ .regsets = riscv64_regsets,
+ .n = 1,
+ .e_machine = EM_RISCV,
+};
+
+const struct user_regset_view *
+task_user_regset_view(void)
+{
+ return &riscv64_regset_view;
+}
+
+int gcore_is_arch_32bit_emulation(struct task_context *tc)
+{
+ return FALSE;
+}
+
+/**
+ * Return an address to gate_vma.
+ */
+ulong gcore_arch_get_gate_vma(void)
+{
+ if (!symbol_exists("gate_vma"))
+ return 0UL;
+
+ return symbol_value("gate_vma");
+}
+
+char *gcore_arch_vma_name(ulong vma)
+{
+ return NULL;
+}
+
+int gcore_arch_vsyscall_has_vm_alwaysdump_flag(void)
+{
+ return FALSE;
+}
+
+#endif
--
2.25.1
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