[Crash-utility] [PATCH 01/16] Add MIPS64 framework code support
Youling Tang
tangyouling at loongson.cn
Tue Jan 26 11:06:29 UTC 2021
Mainly added some environment configurations, macro definitions, specific
architecture structures and some function declarations supported by the
MIPS64 architecture.
Signed-off-by: Huacai Chen <chenhuacai at loongson.cn>
Signed-off-by: Youling Tang <tangyouling at loongson.cn>
---
Makefile | 7 ++-
configure.c | 33 ++++++++++--
defs.h | 143 +++++++++++++++++++++++++++++++++++++++++++++++++++-
diskdump.c | 3 ++
lkcd_vmdump_v2_v3.h | 3 +-
mips64.c | 45 +++++++++++++++++
symbols.c | 10 ++++
7 files changed, 236 insertions(+), 8 deletions(-)
create mode 100644 mips64.c
diff --git a/Makefile b/Makefile
index f66eba7..eb1e018 100644
--- a/Makefile
+++ b/Makefile
@@ -63,7 +63,7 @@ CFILES=main.c tools.c global_data.c memory.c filesys.c help.c task.c \
kernel.c test.c gdb_interface.c configure.c net.c dev.c bpf.c \
printk.c \
alpha.c x86.c ppc.c ia64.c s390.c s390x.c s390dbf.c ppc64.c x86_64.c \
- arm.c arm64.c mips.c sparc64.c \
+ arm.c arm64.c mips.c mips64.c sparc64.c \
extensions.c remote.c va_server.c va_server_v1.c symbols.c cmdline.c \
lkcd_common.c lkcd_v1.c lkcd_v2_v3.c lkcd_v5.c lkcd_v7.c lkcd_v8.c\
lkcd_fix_mem.c s390_dump.c lkcd_x86_trace.c \
@@ -83,7 +83,7 @@ OBJECT_FILES=main.o tools.o global_data.o memory.o filesys.o help.o task.o \
build_data.o kernel.o test.o gdb_interface.o net.o dev.o bpf.o \
printk.o \
alpha.o x86.o ppc.o ia64.o s390.o s390x.o s390dbf.o ppc64.o x86_64.o \
- arm.o arm64.o mips.o sparc64.o \
+ arm.o arm64.o mips.o mips64.o sparc64.o \
extensions.o remote.o va_server.o va_server_v1.o symbols.o cmdline.o \
lkcd_common.o lkcd_v1.o lkcd_v2_v3.o lkcd_v5.o lkcd_v7.o lkcd_v8.o \
lkcd_fix_mem.o s390_dump.o netdump.o diskdump.o makedumpfile.o xendump.o \
@@ -434,6 +434,9 @@ arm64.o: ${GENERIC_HFILES} ${REDHAT_HFILES} arm64.c
mips.o: ${GENERIC_HFILES} ${REDHAT_HFILES} mips.c
${CC} -c ${CRASH_CFLAGS} mips.c ${WARNING_OPTIONS} ${WARNING_ERROR}
+mips64.o: ${GENERIC_HFILES} ${REDHAT_HFILES} mips64.c
+ ${CC} -c ${CRASH_CFLAGS} mips64.c ${WARNING_OPTIONS} ${WARNING_ERROR}
+
sparc64.o: ${GENERIC_HFILES} ${REDHAT_HFILES} sparc64.c
${CC} -c ${CRASH_CFLAGS} sparc64.c ${WARNING_OPTIONS} ${WARNING_ERROR}
diff --git a/configure.c b/configure.c
index 7f6d19e..e2df6f0 100644
--- a/configure.c
+++ b/configure.c
@@ -104,7 +104,9 @@ void add_extra_lib(char *);
#undef X86_64
#undef ARM
#undef ARM64
+#undef MIPS
#undef SPARC64
+#undef MIPS64
#define UNKNOWN 0
#define X86 1
@@ -119,6 +121,7 @@ void add_extra_lib(char *);
#define ARM64 10
#define MIPS 11
#define SPARC64 12
+#define MIPS64 13
#define TARGET_X86 "TARGET=X86"
#define TARGET_ALPHA "TARGET=ALPHA"
@@ -131,6 +134,7 @@ void add_extra_lib(char *);
#define TARGET_ARM "TARGET=ARM"
#define TARGET_ARM64 "TARGET=ARM64"
#define TARGET_MIPS "TARGET=MIPS"
+#define TARGET_MIPS64 "TARGET=MIPS64"
#define TARGET_SPARC64 "TARGET=SPARC64"
#define TARGET_CFLAGS_X86 "TARGET_CFLAGS=-D_FILE_OFFSET_BITS=64"
@@ -152,6 +156,7 @@ void add_extra_lib(char *);
#define TARGET_CFLAGS_MIPS "TARGET_CFLAGS=-D_FILE_OFFSET_BITS=64"
#define TARGET_CFLAGS_MIPS_ON_X86 "TARGET_CFLAGS=-D_FILE_OFFSET_BITS=64"
#define TARGET_CFLAGS_MIPS_ON_X86_64 "TARGET_CFLAGS=-m32 -D_FILE_OFFSET_BITS=64"
+#define TARGET_CFLAGS_MIPS64 "TARGET_CFLAGS="
#define TARGET_CFLAGS_SPARC64 "TARGET_CFLAGS="
#define GDB_TARGET_DEFAULT "GDB_CONF_FLAGS="
@@ -380,7 +385,11 @@ get_current_configuration(struct supported_gdb_version *sp)
target_data.target = ARM64;
#endif
#ifdef __mips__
- target_data.target = MIPS;
+#ifndef __mips64
+ target_data.target = MIPS;
+#else
+ target_data.target = MIPS64;
+#endif
#endif
#ifdef __sparc_v9__
target_data.target = SPARC64;
@@ -474,6 +483,10 @@ get_current_configuration(struct supported_gdb_version *sp)
arch_mismatch(sp);
}
+ if ((target_data.initial_gdb_target == MIPS64) &&
+ (target_data.target != MIPS64))
+ arch_mismatch(sp);
+
if ((target_data.initial_gdb_target == X86) &&
(target_data.target != X86)) {
if (target_data.target == X86_64)
@@ -631,6 +644,9 @@ show_configuration(void)
case MIPS:
printf("TARGET: MIPS\n");
break;
+ case MIPS64:
+ printf("TARGET: MIPS64\n");
+ break;
case SPARC64:
printf("TARGET: SPARC64\n");
break;
@@ -742,7 +758,11 @@ build_configure(struct supported_gdb_version *sp)
gdb_conf_flags = GDB_TARGET_MIPS_ON_X86_64;
} else
target_CFLAGS = TARGET_CFLAGS_MIPS;
- break;
+ break;
+ case MIPS64:
+ target = TARGET_MIPS64;
+ target_CFLAGS = TARGET_CFLAGS_MIPS64;
+ break;
case SPARC64:
target = TARGET_SPARC64;
target_CFLAGS = TARGET_CFLAGS_SPARC64;
@@ -1344,7 +1364,7 @@ make_spec_file(struct supported_gdb_version *sp)
printf("Vendor: Red Hat, Inc.\n");
printf("Packager: Dave Anderson <anderson at redhat.com>\n");
printf("ExclusiveOS: Linux\n");
- printf("ExclusiveArch: %%{ix86} alpha ia64 ppc ppc64 ppc64pseries ppc64iseries x86_64 s390 s390x arm aarch64 ppc64le mips mipsel sparc64\n");
+ printf("ExclusiveArch: %%{ix86} alpha ia64 ppc ppc64 ppc64pseries ppc64iseries x86_64 s390 s390x arm aarch64 ppc64le mips mipsel mips64el sparc64\n");
printf("Buildroot: %%{_tmppath}/%%{name}-root\n");
printf("BuildRequires: ncurses-devel zlib-devel bison\n");
printf("Requires: binutils\n");
@@ -1571,6 +1591,8 @@ set_initial_target(struct supported_gdb_version *sp)
target_data.initial_gdb_target = ARM64;
else if (strncmp(buf, "ARM", strlen("ARM")) == 0)
target_data.initial_gdb_target = ARM;
+ else if (strncmp(buf, "MIPS64", strlen("MIPS64")) == 0)
+ target_data.initial_gdb_target = MIPS64;
else if (strncmp(buf, "MIPS", strlen("MIPS")) == 0)
target_data.initial_gdb_target = MIPS;
else if (strncmp(buf, "SPARC64", strlen("SPARC64")) == 0)
@@ -1593,6 +1615,7 @@ target_to_name(int target)
case ARM: return("ARM");
case ARM64: return("ARM64");
case MIPS: return("MIPS");
+ case MIPS64: return("MIPS64");
case SPARC64: return("SPARC64");
}
@@ -1652,6 +1675,10 @@ name_to_target(char *name)
return MIPS;
else if (strncmp(name, "MIPS", strlen("MIPS")) == 0)
return MIPS;
+ else if (strncmp(name, "mips64", strlen("mips64")) == 0)
+ return MIPS64;
+ else if (strncmp(name, "MIPS64", strlen("MIPS64")) == 0)
+ return MIPS64;
else if (strncmp(name, "sparc64", strlen("sparc64")) == 0)
return SPARC64;
diff --git a/defs.h b/defs.h
index ffbe73b..21cd904 100644
--- a/defs.h
+++ b/defs.h
@@ -71,7 +71,8 @@
#if !defined(X86) && !defined(X86_64) && !defined(ALPHA) && !defined(PPC) && \
!defined(IA64) && !defined(PPC64) && !defined(S390) && !defined(S390X) && \
- !defined(ARM) && !defined(ARM64) && !defined(MIPS) && !defined(SPARC64)
+ !defined(ARM) && !defined(ARM64) && !defined(MIPS) && !defined(MIPS64) && \
+ !defined(SPARC64)
#ifdef __alpha__
#define ALPHA
#endif
@@ -104,7 +105,11 @@
#define ARM64
#endif
#ifdef __mipsel__
+#ifndef __mips64
#define MIPS
+#else
+#define MIPS64
+#endif
#endif
#ifdef __sparc_v9__
#define SPARC64
@@ -144,6 +149,9 @@
#ifdef MIPS
#define NR_CPUS (32)
#endif
+#ifdef MIPS64
+#define NR_CPUS (256)
+#endif
#ifdef SPARC64
#define NR_CPUS (4096)
#endif
@@ -3343,7 +3351,6 @@ struct arm64_stackframe {
#ifdef MIPS
#define _32BIT_
-#define MACHINE_TYPE "MIPS"
#define PAGEBASE(X) (((ulong)(X)) & (ulong)machdep->pagemask)
@@ -3375,6 +3382,44 @@ struct arm64_stackframe {
#define _MAX_PHYSMEM_BITS 32
#endif /* MIPS */
+#ifdef MIPS64
+#define _64BIT_
+
+#define PAGEBASE(X) (((ulong)(X)) & (ulong)machdep->pagemask)
+#define IS_CKPHYS(X) (((X) >= 0xffffffff80000000lu) && \
+ ((X) < 0xffffffffc0000000lu))
+#define IS_XKPHYS(X) (((X) >= 0x8000000000000000lu) && \
+ ((X) < 0xc000000000000000lu))
+
+#define PTOV(X) ((ulong)(X) + 0x9800000000000000lu)
+#define VTOP(X) (IS_CKPHYS(X) ? ((ulong)(X) & 0x000000001ffffffflu) \
+ : ((ulong)(X) & 0x0000fffffffffffflu))
+
+#define IS_VMALLOC_ADDR(X) (vt->vmalloc_start && (ulong)(X) >= vt->vmalloc_start && !IS_CKPHYS(X))
+
+#define DEFAULT_MODULES_VADDR 0xffffffffc0000000lu
+#define MODULES_VADDR (machdep->machspec->modules_vaddr)
+#define MODULES_END (machdep->machspec->modules_end)
+#define VMALLOC_START (machdep->machspec->vmalloc_start_addr)
+#define VMALLOC_END (machdep->machspec->vmalloc_end)
+
+#define __SWP_TYPE_SHIFT 16
+#define __SWP_TYPE_BITS 8
+#define __SWP_TYPE_MASK ((1 << __SWP_TYPE_BITS) - 1)
+#define __SWP_OFFSET_SHIFT (__SWP_TYPE_BITS + __SWP_TYPE_SHIFT)
+
+#define SWP_TYPE(entry) (((entry) >> __SWP_TYPE_SHIFT) & __SWP_TYPE_MASK)
+#define SWP_OFFSET(entry) ((entry) >> __SWP_OFFSET_SHIFT)
+
+#define __swp_type(entry) SWP_TYPE(entry)
+#define __swp_offset(entry) SWP_OFFSET(entry)
+
+#define TIF_SIGPENDING (2)
+
+#define _SECTION_SIZE_BITS 28
+#define _MAX_PHYSMEM_BITS 48
+#endif /* MIPS64 */
+
#ifdef X86
#define _32BIT_
#define MACHINE_TYPE "X86"
@@ -4415,6 +4460,10 @@ struct machine_specific {
#define MAX_HEXADDR_STRLEN (8)
#define UVADDR_PRLEN (8)
#endif
+#ifdef MIPS64
+#define MAX_HEXADDR_STRLEN (16)
+#define UVADDR_PRLEN (16)
+#endif
#ifdef SPARC64
#define MAX_HEXADDR_STRLEN (16)
#define UVADDR_PRLEN (16)
@@ -4991,6 +5040,9 @@ void dump_build_data(void);
#ifdef MIPS
#define machdep_init(X) mips_init(X)
#endif
+#ifdef MIPS64
+#define machdep_init(X) mips64_init(X)
+#endif
#ifdef SPARC64
#define machdep_init(X) sparc64_init(X)
#endif
@@ -5471,6 +5523,9 @@ void display_help_screen(char *);
#ifdef MIPS
#define dump_machdep_table(X) mips_dump_machdep_table(X)
#endif
+#ifdef MIPS64
+#define dump_machdep_table(X) mips64_dump_machdep_table(X)
+#endif
#ifdef SPARC64
#define dump_machdep_table(X) sparc64_dump_machdep_table(X)
#endif
@@ -6348,6 +6403,10 @@ void s390x_dump_machdep_table(ulong);
#define KSYMS_START (0x1)
#endif
+#ifdef __mips__ /* MIPS & MIPS64 */
+#define MACHINE_TYPE "MIPS"
+#endif
+
/*
* mips.c
*/
@@ -6418,6 +6477,86 @@ struct machine_specific {
#endif /* MIPS */
/*
+ * mips64.c
+ */
+void mips64_display_regs_from_elf_notes(int, FILE *);
+
+#ifdef MIPS64
+void mips64_init(int);
+void mips64_dump_machdep_table(ulong);
+
+#define display_idt_table() \
+ error(FATAL, "-d option is not applicable to MIPS64 architecture\n")
+
+/* from arch/mips/include/uapi/asm/ptrace.h */
+struct mips64_register {
+ ulong regs[45];
+};
+
+struct mips64_pt_regs_main {
+ ulong regs[32];
+ ulong cp0_status;
+ ulong hi;
+ ulong lo;
+};
+
+struct mips64_pt_regs_cp0 {
+ ulong cp0_badvaddr;
+ ulong cp0_cause;
+ ulong cp0_epc;
+};
+
+struct mips64_unwind_frame {
+ unsigned long sp;
+ unsigned long pc;
+ unsigned long ra;
+};
+
+#define KSYMS_START (0x1)
+
+struct machine_specific {
+ ulong phys_base;
+ ulong vmalloc_start_addr;
+ ulong modules_vaddr;
+ ulong modules_end;
+
+ ulong _page_present;
+ ulong _page_read;
+ ulong _page_write;
+ ulong _page_accessed;
+ ulong _page_modified;
+ ulong _page_huge;
+ ulong _page_special;
+ ulong _page_protnone;
+ ulong _page_global;
+ ulong _page_valid;
+ ulong _page_no_read;
+ ulong _page_no_exec;
+ ulong _page_dirty;
+
+ ulong _pfn_shift;
+
+ struct mips64_register *crash_task_regs;
+};
+/* from arch/mips/include/asm/pgtable-bits.h */
+#define _PAGE_PRESENT (machdep->machspec->_page_present)
+#define _PAGE_READ (machdep->machspec->_page_read)
+#define _PAGE_WRITE (machdep->machspec->_page_write)
+#define _PAGE_ACCESSED (machdep->machspec->_page_accessed)
+#define _PAGE_MODIFIED (machdep->machspec->_page_modified)
+#define _PAGE_HUGE (machdep->machspec->_page_huge)
+#define _PAGE_SPECIAL (machdep->machspec->_page_special)
+#define _PAGE_PROTNONE (machdep->machspec->_page_protnone)
+#define _PAGE_GLOBAL (machdep->machspec->_page_global)
+#define _PAGE_VALID (machdep->machspec->_page_valid)
+#define _PAGE_NO_READ (machdep->machspec->_page_no_read)
+#define _PAGE_NO_EXEC (machdep->machspec->_page_no_exec)
+#define _PAGE_DIRTY (machdep->machspec->_page_dirty)
+#define _PFN_SHIFT (machdep->machspec->_pfn_shift)
+
+#endif /* MIPS64 */
+
+/*
* sparc64.c
*/
#ifdef SPARC64
diff --git a/diskdump.c b/diskdump.c
index 4f14596..4ad2c50 100644
--- a/diskdump.c
+++ b/diskdump.c
@@ -594,6 +594,9 @@ restart:
else if (STRNEQ(header->utsname.machine, "mips") &&
machine_type_mismatch(file, "MIPS", NULL, 0))
goto err;
+ else if (STRNEQ(header->utsname.machine, "mips64") &&
+ machine_type_mismatch(file, "MIPS", NULL, 0))
+ goto err;
else if (STRNEQ(header->utsname.machine, "s390x") &&
machine_type_mismatch(file, "S390X", NULL, 0))
goto err;
diff --git a/lkcd_vmdump_v2_v3.h b/lkcd_vmdump_v2_v3.h
index 8d5eae4..984c2c2 100644
--- a/lkcd_vmdump_v2_v3.h
+++ b/lkcd_vmdump_v2_v3.h
@@ -36,7 +36,8 @@
#endif
#if defined(ARM) || defined(X86) || defined(PPC) || defined(S390) || \
- defined(S390X) || defined(ARM64) || defined(MIPS) || defined(SPARC64)
+ defined(S390X) || defined(ARM64) || defined(MIPS) || \
+ defined(MIPS64) || defined(SPARC64)
/*
* Kernel header file for Linux crash dumps.
diff --git a/mips64.c b/mips64.c
new file mode 100644
index 0000000..5ebe61d
--- /dev/null
+++ b/mips64.c
@@ -0,0 +1,45 @@
+/* mips64.c - core analysis suite
+ *
+ * Copyright (C) 2021 Loongson Technology Co., Ltd.
+ *
+ * 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 MIPS64
+
+#include <elf.h>
+#include "defs.h"
+
+void
+mips64_dump_machdep_table(ulong arg)
+{
+}
+
+void
+mips64_init(int when)
+{
+}
+
+void
+mips64_display_regs_from_elf_notes(int cpu, FILE *ofp)
+{
+}
+
+#else /* !MIPS64 */
+
+#include "defs.h"
+
+void
+mips64_display_regs_from_elf_notes(int cpu, FILE *ofp)
+{
+ return;
+}
+
+#endif /* !MIPS64 */
diff --git a/symbols.c b/symbols.c
index ed5f731..57cb177 100644
--- a/symbols.c
+++ b/symbols.c
@@ -3636,6 +3636,11 @@ is_kernel(char *file)
goto bailout;
break;
+ case EM_MIPS:
+ if (machine_type_mismatch(file, "MIPS", NULL, 0))
+ goto bailout;
+ break;
+
default:
if (machine_type_mismatch(file, "(unknown)", NULL, 0))
goto bailout;
@@ -3890,6 +3895,11 @@ is_shared_object(char *file)
if (machine_type("SPARC64"))
return TRUE;
break;
+
+ case EM_MIPS:
+ if (machine_type("MIPS"))
+ return TRUE;
+ break;
}
if (CRASHDEBUG(1))
--
2.1.0
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