kexec-tools: Update to 2.0.2. Mips64 support is builtin in this version. So remove the patch.

SVN-Revision: 22559

1 files changed, 0 insertions, 718 deletions

diff --git a/package/kexec-tools/patches/0005-mips64_support.patch b/package/kexec-tools/patches/0005-mips64_support.patch
deleted file mode 100644
index e5da10e..0000000
--- a/package/kexec-tools/patches/0005-mips64_support.patch
+++ /dev/null
@@ -1,718 +0,0 @@
---- a/kexec/arch/mips/Makefile
-+++ b/kexec/arch/mips/Makefile
-@@ -4,7 +4,7 @@
- mips_KEXEC_SRCS =  kexec/arch/mips/kexec-mips.c
- mips_KEXEC_SRCS += kexec/arch/mips/kexec-elf-mips.c
- mips_KEXEC_SRCS += kexec/arch/mips/kexec-elf-rel-mips.c
--mips_KEXEC_SRCS += kexec/arch/mips/mips-setup-simple.S
-+mips_KEXEC_SRCS += kexec/arch/mips/crashdump-mips.c
- 
- mips_ADD_BUFFER =
- mips_ADD_SEGMENT =
---- /dev/null
-+++ b/kexec/arch/mips/crashdump-mips.c
-@@ -0,0 +1,371 @@
-+/*
-+ * kexec: Linux boots Linux
-+ *
-+ * 2005 (C) IBM Corporation.
-+ * 2008 (C) MontaVista Software, Inc.
-+ *
-+ * 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 (version 2 of the License).
-+ *
-+ * 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, write to the Free Software
-+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-+ */
-+#include <stdio.h>
-+#include <string.h>
-+#include <stdlib.h>
-+#include <errno.h>
-+#include <elf.h>
-+#include <sys/types.h>
-+#include <sys/stat.h>
-+#include <unistd.h>
-+#include "../../kexec.h"
-+#include "../../kexec-elf.h"
-+#include "../../kexec-syscall.h"
-+#include "../../crashdump.h"
-+#include "kexec-mips.h"
-+#include "crashdump-mips.h"
-+
-+extern struct arch_options_t arch_options;
-+
-+/* Stores a sorted list of RAM memory ranges for which to create elf headers.
-+ * A separate program header is created for backup region */
-+static struct memory_range crash_memory_range[CRASH_MAX_MEMORY_RANGES];
-+
-+/* Memory region reserved for storing panic kernel and other data. */
-+static struct memory_range crash_reserved_mem;
-+
-+/*
-+ * To store the memory size of the first kernel and this value will be
-+ * passed to the second kernel as command line (savemaxmem=xM).
-+ * The second kernel will be calculated saved_max_pfn based on this
-+ * variable.
-+ */
-+unsigned long long saved_max_mem = 0;
-+
-+/* Removes crash reserve region from list of memory chunks for whom elf program
-+ * headers have to be created. Assuming crash reserve region to be a single
-+ * continuous area fully contained inside one of the memory chunks */
-+static int exclude_crash_reserve_region(int *nr_ranges)
-+{
-+    int i, j, tidx = -1;
-+    unsigned long long cstart, cend;
-+    struct memory_range temp_region;
-+
-+    /* Crash reserved region. */
-+    cstart = crash_reserved_mem.start;
-+    cend = crash_reserved_mem.end;
-+
-+    for (i = 0; i < (*nr_ranges); i++) {
-+        unsigned long long mstart, mend;
-+        mstart = crash_memory_range[i].start;
-+        mend = crash_memory_range[i].end;
-+        if (cstart < mend && cend > mstart) {
-+            if (cstart != mstart && cend != mend) {
-+                /* Split memory region */
-+                crash_memory_range[i].end = cstart - 1;
-+                temp_region.start = cend + 1;
-+                temp_region.end = mend;
-+                temp_region.type = RANGE_RAM;
-+                tidx = i+1;
-+            } else if (cstart != mstart)
-+                crash_memory_range[i].end = cstart - 1;
-+            else
-+                crash_memory_range[i].start = cend + 1;
-+        }
-+    }
-+    /* Insert split memory region, if any. */
-+    if (tidx >= 0) {
-+        if (*nr_ranges == CRASH_MAX_MEMORY_RANGES) {
-+            /* No space to insert another element. */
-+            fprintf(stderr, "Error: Number of crash memory ranges"
-+                    " excedeed the max limit\n");
-+            return -1;
-+        }
-+        for (j = (*nr_ranges - 1); j >= tidx; j--)
-+            crash_memory_range[j+1] = crash_memory_range[j];
-+        crash_memory_range[tidx].start = temp_region.start;
-+        crash_memory_range[tidx].end = temp_region.end;
-+        crash_memory_range[tidx].type = temp_region.type;
-+        (*nr_ranges)++;
-+    }
-+    return 0;
-+}
-+/* Reads the appropriate file and retrieves the SYSTEM RAM regions for whom to
-+ * create Elf headers. Keeping it separate from get_memory_ranges() as
-+ * requirements are different in the case of normal kexec and crashdumps.
-+ *
-+ * Normal kexec needs to look at all of available physical memory irrespective
-+ * of the fact how much of it is being used by currently running kernel.
-+ * Crashdumps need to have access to memory regions actually being used by
-+ * running  kernel. Expecting a different file/data structure than /proc/iomem
-+ * to look into down the line. May be something like /proc/kernelmem or may
-+ * be zone data structures exported from kernel.
-+ */
-+static int get_crash_memory_ranges(struct memory_range **range, int *ranges)
-+{
-+    const char iomem[]= "/proc/iomem";
-+    int i, memory_ranges = 0;
-+    char line[MAX_LINE];
-+    FILE *fp;
-+    unsigned long long start, end;
-+
-+    fp = fopen(iomem, "r");
-+    if (!fp) {
-+        fprintf(stderr, "Cannot open %s: %s\n",
-+            iomem, strerror(errno));
-+        return -1;
-+    }
-+
-+    /* Separate segment for backup region */
-+    crash_memory_range[0].start = BACKUP_SRC_START;
-+    crash_memory_range[0].end = BACKUP_SRC_END;
-+    crash_memory_range[0].type = RANGE_RAM;
-+    memory_ranges++;
-+
-+    while(fgets(line, sizeof(line), fp) != 0) {
-+        char *str;
-+        int type, consumed, count;
-+        if (memory_ranges >= CRASH_MAX_MEMORY_RANGES)
-+            break;
-+        count = sscanf(line, "%Lx-%Lx : %n",
-+            &start, &end, &consumed);
-+        if (count != 2)
-+            continue;
-+        str = line + consumed;
-+
-+        /* Only Dumping memory of type System RAM. */
-+        if (memcmp(str, "System RAM\n", 11) == 0) {
-+            type = RANGE_RAM;
-+        } else if (memcmp(str, "Crash kernel\n", 13) == 0) {
-+                /* Reserved memory region. New kernel can
-+                 * use this region to boot into. */
-+                crash_reserved_mem.start = start;
-+                crash_reserved_mem.end = end;
-+                crash_reserved_mem.type = RANGE_RAM;
-+                continue;
-+        } else {
-+            continue;
-+        }
-+
-+        if (start == BACKUP_SRC_START && end >= (BACKUP_SRC_END + 1))
-+            start = BACKUP_SRC_END + 1;
-+
-+        crash_memory_range[memory_ranges].start = start;
-+        crash_memory_range[memory_ranges].end = end;
-+        crash_memory_range[memory_ranges].type = type;
-+        memory_ranges++;
-+
-+        /* Segregate linearly mapped region. */
-+        if ((MAXMEM - 1) >= start && (MAXMEM - 1) <= end) {
-+            crash_memory_range[memory_ranges-1].end = MAXMEM -1;
-+
-+            /* Add segregated region. */
-+            crash_memory_range[memory_ranges].start = MAXMEM;
-+            crash_memory_range[memory_ranges].end = end;
-+            crash_memory_range[memory_ranges].type = type;
-+            memory_ranges++;
-+        }
-+    }
-+    fclose(fp);
-+
-+    if (exclude_crash_reserve_region(&memory_ranges) < 0)
-+        return -1;
-+
-+    for (i = 0; i < memory_ranges; i++)
-+        if (saved_max_mem < crash_memory_range[i].end)
-+            saved_max_mem = crash_memory_range[i].end + 1;
-+
-+    *range = crash_memory_range;
-+    *ranges = memory_ranges;
-+    return 0;
-+}
-+
-+/* Converts unsigned long to ascii string. */
-+static void ultoa(unsigned long i, char *str)
-+{
-+    int j = 0, k;
-+    char tmp;
-+
-+    do {
-+        str[j++] = i % 10 + '0';
-+    } while ((i /=10) > 0);
-+    str[j] = '\0';
-+
-+    /* Reverse the string. */
-+    for (j = 0, k = strlen(str) - 1; j < k; j++, k--) {
-+        tmp = str[k];
-+        str[k] = str[j];
-+        str[j] = tmp;
-+    }
-+}
-+
-+/* Adds the appropriate mem= options to command line, indicating the
-+ * memory region the new kernel can use to boot into. */
-+static int cmdline_add_mem(char *cmdline, unsigned long addr, unsigned long size)
-+{
-+    int cmdlen, len;
-+    char str[50], *ptr;
-+
-+    addr = addr/1024;
-+    size = size/1024;
-+    ptr = str;
-+    strcpy (str, " mem=");
-+    ptr += strlen(str);
-+    ultoa(size, ptr);
-+    strcat (str, "K@");
-+    ptr = str + strlen(str);
-+    ultoa(addr, ptr);
-+    strcat (str, "K");
-+    len = strlen(str);
-+    cmdlen = strlen(cmdline) + len;
-+    if (cmdlen > (COMMAND_LINE_SIZE - 1))
-+        die("Command line overflow\n");
-+    strcat(cmdline, str);
-+
-+    return 0;
-+}
-+
-+/* Adds the elfcorehdr= command line parameter to command line. */
-+static int cmdline_add_elfcorehdr(char *cmdline, unsigned long addr)
-+{
-+    int cmdlen, len, align = 1024;
-+    char str[30], *ptr;
-+
-+    /* Passing in elfcorehdr=xxxK format. Saves space required in cmdline.
-+     * Ensure 1K alignment*/
-+    if (addr%align)
-+        return -1;
-+    addr = addr/align;
-+    ptr = str;
-+    strcpy(str, " elfcorehdr=");
-+    ptr += strlen(str);
-+    ultoa(addr, ptr);
-+    strcat(str, "K");
-+    len = strlen(str);
-+    cmdlen = strlen(cmdline) + len;
-+    if (cmdlen > (COMMAND_LINE_SIZE - 1))
-+        die("Command line overflow\n");
-+    strcat(cmdline, str);
-+    return 0;
-+}
-+
-+/* Adds the elfcorehdr= command line parameter to command line. */
-+static int cmdline_add_savemaxmem(char *cmdline, unsigned long addr)
-+{
-+    int cmdlen, len, align = 1024;
-+    char str[30], *ptr;
-+
-+    /* Passing in savemaxmem=xxxM format. Saves space required in cmdline.*/
-+    addr = addr/(align*align);
-+    ptr = str;
-+    strcpy(str, " savemaxmem=");
-+    ptr += strlen(str);
-+    ultoa(addr, ptr);
-+    strcat(str, "M");
-+    len = strlen(str);
-+    cmdlen = strlen(cmdline) + len;
-+    if (cmdlen > (COMMAND_LINE_SIZE - 1))
-+        die("Command line overflow\n");
-+    strcat(cmdline, str);
-+    return 0;
-+}
-+
-+#ifdef __mips64
-+static struct crash_elf_info elf_info64 =
-+{
-+    class: ELFCLASS64,
-+    data: ELFDATA2MSB,
-+    machine: EM_MIPS,
-+    backup_src_start: BACKUP_SRC_START,
-+    backup_src_end: BACKUP_SRC_END,
-+    page_offset: PAGE_OFFSET,
-+    lowmem_limit: MAXMEM,
-+};
-+#endif
-+static struct crash_elf_info elf_info32 =
-+{
-+    class: ELFCLASS32,
-+    data: ELFDATA2MSB,
-+    machine: EM_MIPS,
-+    backup_src_start: BACKUP_SRC_START,
-+    backup_src_end: BACKUP_SRC_END,
-+    page_offset: PAGE_OFFSET,
-+    lowmem_limit: MAXMEM,
-+};
-+
-+/* Loads additional segments in case of a panic kernel is being loaded.
-+ * One segment for backup region, another segment for storing elf headers
-+ * for crash memory image.
-+ */
-+int load_crashdump_segments(struct kexec_info *info, char* mod_cmdline,
-+                unsigned long max_addr, unsigned long min_base)
-+{
-+    void *tmp;
-+    unsigned long sz, elfcorehdr;
-+    int nr_ranges, align = 1024;
-+    struct memory_range *mem_range;
-+
-+    if (get_crash_memory_ranges(&mem_range, &nr_ranges) < 0)
-+        return -1;
-+
-+    /* Create a backup region segment to store backup data*/
-+    sz = (BACKUP_SRC_SIZE + align - 1) & ~(align - 1);
-+    tmp = xmalloc(sz);
-+    memset(tmp, 0, sz);
-+    info->backup_start = add_buffer(info, tmp, sz, sz, align,
-+                crash_reserved_mem.start,
-+                crash_reserved_mem.end,-1);
-+
-+#ifdef __mips64
-+    /* Create elf header segment and store crash image data. */
-+    if (arch_options.core_header_type == CORE_TYPE_ELF64) {
-+        if (crash_create_elf64_headers(info, &elf_info64,
-+                           crash_memory_range, nr_ranges,
-+                           &tmp, &sz,
-+                           ELF_CORE_HEADER_ALIGN) < 0)
-+            return -1;
-+    }
-+    else {
-+        if (crash_create_elf32_headers(info, &elf_info32,
-+                           crash_memory_range, nr_ranges,
-+                           &tmp, &sz,
-+                           ELF_CORE_HEADER_ALIGN) < 0)
-+            return -1;
-+    }
-+#else
-+    if (crash_create_elf32_headers(info, &elf_info32,
-+                   crash_memory_range, nr_ranges,
-+                   &tmp, &sz,
-+                   ELF_CORE_HEADER_ALIGN) < 0)
-+        return -1;
-+#endif
-+    elfcorehdr = add_buffer(info, tmp, sz, sz, align,
-+                crash_reserved_mem.start,
-+                crash_reserved_mem.end, -1);
-+
-+    /*
-+     * backup segment is after elfcorehdr, so use elfcorehdr as top of
-+     * kernel's available memory
-+     */
-+    cmdline_add_mem(mod_cmdline, crash_reserved_mem.start,
-+        elfcorehdr - crash_reserved_mem.start);
-+    cmdline_add_elfcorehdr(mod_cmdline, elfcorehdr);
-+    cmdline_add_savemaxmem(mod_cmdline, saved_max_mem);
-+    return 0;
-+}
-+
-+int is_crashkernel_mem_reserved(void)
-+{
-+    uint64_t start, end;
-+
-+    return parse_iomem_single("Crash kernel\n", &start, &end) == 0 ?
-+      (start != end) : 0;
-+}
-+
---- /dev/null
-+++ b/kexec/arch/mips/crashdump-mips.h
-@@ -0,0 +1,26 @@
-+#ifndef CRASHDUMP_MIPS_H
-+#define CRASHDUMP_MIPS_H
-+
-+struct kexec_info;
-+int load_crashdump_segments(struct kexec_info *info, char *mod_cmdline,
-+                unsigned long max_addr, unsigned long min_base);
-+#ifdef __mips64
-+#define PAGE_OFFSET    0xa800000000000000ULL
-+#else
-+#define PAGE_OFFSET    0x80000000
-+#endif
-+#define __pa(x)        ((unsigned long)(X)& 0x7fffffff)
-+
-+#define MAXMEM        0x80000000
-+
-+#define CRASH_MAX_MEMMAP_NR    (KEXEC_MAX_SEGMENTS + 1)
-+#define CRASH_MAX_MEMORY_RANGES    (MAX_MEMORY_RANGES + 2)
-+
-+#define COMMAND_LINE_SIZE    512
-+
-+/* Backup Region, First 1M of System RAM. */
-+#define BACKUP_SRC_START    0x00000000
-+#define BACKUP_SRC_END        0x000fffff
-+#define BACKUP_SRC_SIZE    (BACKUP_SRC_END - BACKUP_SRC_START + 1)
-+
-+#endif /* CRASHDUMP_MIPS_H */
---- a/kexec/arch/mips/include/arch/options.h
-+++ b/kexec/arch/mips/include/arch/options.h
-@@ -2,10 +2,21 @@
- #define KEXEC_ARCH_MIPS_OPTIONS_H
- 
- #define OPT_ARCH_MAX   (OPT_MAX+0)
-+#define KEXEC_ARCH_OPT_STR KEXEC_OPT_STR ""
- 
-+#ifdef __mips64
-+#define OPT_ELF64_CORE	(OPT_MAX+1)
- #define KEXEC_ARCH_OPTIONS \
- 	KEXEC_OPTIONS \
-+	{ "elf64-core-headers", 0, 0, OPT_ELF64_CORE }, \
- 
- #define KEXEC_ARCH_OPT_STR KEXEC_OPT_STR ""
-+#define OPT_ARCH_MAX       (OPT_MAX+2)
-+#else
-+#define KEXEC_ARCH_OPTIONS \
-+	KEXEC_OPTIONS \
-+
-+#define OPT_ARCH_MAX   (OPT_MAX+0)
-+#endif
- 
- #endif /* KEXEC_ARCH_MIPS_OPTIONS_H */
---- a/kexec/arch/mips/kexec-elf-mips.c
-+++ b/kexec/arch/mips/kexec-elf-mips.c
-@@ -25,51 +25,18 @@
- #include <ip_checksum.h>
- #include "../../kexec.h"
- #include "../../kexec-elf.h"
-+#include "../../kexec-syscall.h"
- #include "kexec-mips.h"
- #include <arch/options.h>
-+#include "crashdump-mips.h"
- 
- static const int probe_debug = 0;
- 
- #define BOOTLOADER         "kexec"
- #define MAX_COMMAND_LINE   256
- 
--#define UPSZ(X) ((sizeof(X) + 3) & ~3)
--static struct boot_notes {
--	Elf_Bhdr hdr;
--	Elf_Nhdr bl_hdr;
--	unsigned char bl_desc[UPSZ(BOOTLOADER)];
--	Elf_Nhdr blv_hdr;
--	unsigned char blv_desc[UPSZ(BOOTLOADER_VERSION)];
--	Elf_Nhdr cmd_hdr;
--	unsigned char command_line[0];
--} elf_boot_notes = {
--	.hdr = {
--		.b_signature = 0x0E1FB007,
--		.b_size = sizeof(elf_boot_notes),
--		.b_checksum = 0,
--		.b_records = 3,
--	},
--	.bl_hdr = {
--		.n_namesz = 0,
--		.n_descsz = sizeof(BOOTLOADER),
--		.n_type = EBN_BOOTLOADER_NAME,
--	},
--	.bl_desc = BOOTLOADER,
--	.blv_hdr = {
--		.n_namesz = 0,
--		.n_descsz = sizeof(BOOTLOADER_VERSION),
--		.n_type = EBN_BOOTLOADER_VERSION,
--	},
--	.blv_desc = BOOTLOADER_VERSION,
--	.cmd_hdr = {
--		.n_namesz = 0,
--		.n_descsz = 0,
--		.n_type = EBN_COMMAND_LINE,
--	},
--};
--
--
--#define OPT_APPEND	(OPT_ARCH_MAX+0)
-+/* 'kexec' in cmdline is used to find cmdline buffer by kernel */
-+static char cmdline_buf[256] = "kexec ";
- 
- int elf_mips_probe(const char *buf, off_t len)
- {
-@@ -108,16 +75,14 @@ int elf_mips_load(int argc, char **argv,
- 	struct kexec_info *info)
- {
- 	struct mem_ehdr ehdr;
--	char *arg_buf;
--	size_t arg_bytes;
--	unsigned long arg_base;
--	struct boot_notes *notes;
--	size_t note_bytes;
--	const char *command_line;
--	int command_line_len;
--	unsigned char *setup_start;
--	uint32_t setup_size;
-+	unsigned long bss_start, bss_size = 0;
-+	const char *command_line = NULL;
-+	char *modified_cmdline;
-+	int modified_cmdline_len;
-+	unsigned long cmdline_addr;
-+	int result,i;
- 	int opt;
-+#define OPT_APPEND     (OPT_ARCH_MAX+0)
- 	static const struct option options[] = {
- 		KEXEC_ARCH_OPTIONS
- 		{"command-line", 1, 0, OPT_APPEND},
-@@ -144,38 +109,81 @@ int elf_mips_load(int argc, char **argv,
- 			break;
- 		}
- 	}
--	command_line_len = 0;
--	setup_simple_regs.spr9 = 0;
--	if (command_line) {
--		command_line_len = strlen(command_line) + 1;
--		setup_simple_regs.spr9 = 2;
-+	/* Need to append some command line parameters internally in case of
-+	 * taking crash dumps.
-+	 */
-+	if (info->kexec_flags & KEXEC_ON_CRASH) {
-+		modified_cmdline = xmalloc(COMMAND_LINE_SIZE);
-+		memset((void *)modified_cmdline, 0, COMMAND_LINE_SIZE);
-+		if (command_line) {
-+			strncpy(modified_cmdline, command_line, COMMAND_LINE_SIZE);
-+			modified_cmdline[COMMAND_LINE_SIZE - 1] = '\0';
-+		}
-+		modified_cmdline_len = strlen(modified_cmdline);
- 	}
- 
--	/* Load the ELF executable */
--	elf_exec_build_load(info, &ehdr, buf, len, 0);
--
--	setup_start = setup_simple_start;
--	setup_size = setup_simple_size;
--	setup_simple_regs.spr8 = ehdr.e_entry;
--
--	note_bytes = sizeof(elf_boot_notes) + ((command_line_len + 3) & ~3);
--	arg_bytes = note_bytes + ((setup_size + 3) & ~3);
--
--	arg_buf = xmalloc(arg_bytes);
--	arg_base = add_buffer_virt(info,
--		 arg_buf, arg_bytes, arg_bytes, 4, 0, elf_max_addr(&ehdr), 1);
-+	/* Parse the Elf file */
-+	result = build_elf_exec_info(buf, len, &ehdr, 0);
-+	if (result < 0) {
-+		die("ELF exec parse failed\n");
-+	}
- 
--	notes = (struct boot_notes *)(arg_buf + ((setup_size + 3) & ~3));
-+	/* Read in the PT_LOAD segments and remove CKSEG0 mask from address*/
-+	for(i = 0; i < ehdr.e_phnum; i++) {
-+		struct mem_phdr *phdr;
-+		phdr = &ehdr.e_phdr[i];
-+		if (phdr->p_type == PT_LOAD) {
-+			phdr->p_paddr = virt_to_phys(phdr->p_paddr);
-+		}
-+	}
- 
--	memcpy(arg_buf, setup_start, setup_size);
--	memcpy(notes, &elf_boot_notes, sizeof(elf_boot_notes));
--	memcpy(notes->command_line, command_line, command_line_len);
-+	for(i = 0; i < ehdr.e_shnum; i++) {
-+		struct mem_shdr *shdr;
-+		unsigned char *strtab;
-+		strtab = (unsigned char *)ehdr.e_shdr[ehdr.e_shstrndx].sh_data;
-+
-+		shdr = &ehdr.e_shdr[i];
-+		if ( shdr->sh_size &&
-+				strcmp((char *)&strtab[shdr->sh_name],
-+					".bss") == 0) {
-+			bss_start = virt_to_phys(shdr->sh_addr);
-+			bss_size = shdr->sh_size;
-+			break;
-+		}
-+	}
- 
--	notes->hdr.b_size = note_bytes;
--	notes->cmd_hdr.n_descsz = command_line_len;
--	notes->hdr.b_checksum = compute_ip_checksum(notes, note_bytes);
-+	/* Load the Elf data */
-+	result = elf_exec_load(&ehdr, info);
-+	if (result < 0) {
-+		die("ELF exec load failed\n");
-+	}
-+	info->entry = (void *)virt_to_phys(ehdr.e_entry);
-+	if(!bss_size)
-+		die("No .bss segment present\n");
-+
-+	/* Put cmdline right after bss */
-+	cmdline_addr = bss_start + bss_size;
-+
-+	/* If panic kernel is being loaded, additional segments need
-+	 * to be created.
-+	 */
-+	if (info->kexec_flags & KEXEC_ON_CRASH) {
-+		result = load_crashdump_segments(info, modified_cmdline,
-+								0, 0);
-+		if (result < 0)
-+			return -1;
-+		/* Use new command line. */
-+		command_line = modified_cmdline;
-+	}
- 
--	info->entry = (void *)arg_base;
-+	if (command_line)
-+	{
-+		strncat(cmdline_buf,command_line,
-+			sizeof(cmdline_buf) - strlen(cmdline_buf) - 1);
-+		add_buffer(info, cmdline_buf, sizeof(cmdline_buf),
-+			sizeof(cmdline_buf), sizeof(void*),
-+			cmdline_addr, 0x0fffffff, 1);
-+	}
- 
- 	return 0;
- }
---- a/kexec/arch/mips/kexec-mips.c
-+++ b/kexec/arch/mips/kexec-mips.c
-@@ -97,8 +97,18 @@ int file_types = sizeof(file_type) / siz
- 
- void arch_usage(void)
- {
-+#ifdef __mips64
-+       fprintf(stderr, "        --elf32-core-headers Prepare core headers in "
-+                       "ELF32 format\n");
-+#endif
- }
- 
-+#ifdef __mips64
-+struct arch_options_t arch_options = {
-+       .core_header_type = CORE_TYPE_ELF64
-+};
-+#endif
-+
- int arch_process_options(int argc, char **argv)
- {
- 	static const struct option options[] = {
-@@ -113,6 +123,11 @@ int arch_process_options(int argc, char 
- 		switch(opt) {
- 		default:
- 			break;
-+#ifdef __mips64
-+		case OPT_ELF64_CORE:
-+			arch_options.core_header_type = CORE_TYPE_ELF64;
-+			break;
-+#endif
- 		}
- 	}
- 	/* Reset getopt for the next pass; called in other source modules */
-@@ -126,6 +141,10 @@ const struct arch_map_entry arches[] = {
- 	 * use KEXEC_ARCH_DEFAULT instead of KEXEC_ARCH_MIPS here.
- 	 */
- 	{ "mips", KEXEC_ARCH_DEFAULT },
-+	/* Not using KEXEC_ARCH_DEFAULT because that will fail
-+	 * in the kernel's compat_sys_kexec_load() routine.
-+	 */
-+	{ "mips64", KEXEC_ARCH_MIPS },
- 	{ 0 },
- };
- 
-@@ -138,18 +157,9 @@ void arch_update_purgatory(struct kexec_
- {
- }
- 
--/*
-- * Adding a dummy function, so that build on mips will not break.
-- * Need to implement the actual checking code
-- */
--int is_crashkernel_mem_reserved(void)
--{
--	return 1;
--}
--
- unsigned long virt_to_phys(unsigned long addr)
- {
--	return addr - 0x80000000;
-+	return ((addr)& 0x7fffffff);
- }
- 
- /*
---- a/kexec/arch/mips/kexec-mips.h
-+++ b/kexec/arch/mips/kexec-mips.h
-@@ -1,17 +1,16 @@
- #ifndef KEXEC_MIPS_H
- #define KEXEC_MIPS_H
- 
--extern unsigned char setup_simple_start[];
--extern uint32_t setup_simple_size;
--
--extern struct {
--	uint32_t spr8;
--	uint32_t spr9;
--} setup_simple_regs;
-+#define MAX_MEMORY_RANGES 64
-+#define CORE_TYPE_ELF32 1
-+#define CORE_TYPE_ELF64 2
- 
- int elf_mips_probe(const char *buf, off_t len);
- int elf_mips_load(int argc, char **argv, const char *buf, off_t len,
- 	struct kexec_info *info);
- void elf_mips_usage(void);
- 
-+struct arch_options_t {
-+	int core_header_type;
-+};
- #endif /* KEXEC_MIPS_H */