mirror of https://github.com/crash-utility/crash
310 lines
11 KiB
C
310 lines
11 KiB
C
/*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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/* OBSOLETE */
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#ifdef IA64
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#define UTSNAME_ENTRY_SZ 65
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/* necessary header definitions in all cases */
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#define DUMP_KIOBUF_NUMBER 0xdeadbeef /* special number for kiobuf maps */
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/* size of a dump header page */
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#define DUMP_PAGE_SZ 64 * 1024 /* size of dump page buffer */
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/* header definitions for s390 dump */
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#define DUMP_MAGIC_S390 0xa8190173618f23fdULL /* s390 magic number */
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#define S390_DUMP_HEADER_SIZE 4096
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/* standard header definitions */
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#define DUMP_MAGIC_NUMBER 0xa8190173618f23edULL /* dump magic number */
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#define DUMP_MAGIC_LIVE 0xa8190173618f23cdULL /* live magic number */
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#define DUMP_VERSION_NUMBER 0x5 /* dump version number */
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#define DUMP_PANIC_LEN 0x100 /* dump panic string length */
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/* dump levels - type specific stuff added later -- add as necessary */
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#define DUMP_LEVEL_NONE 0x0 /* no dumping at all -- just bail */
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#define DUMP_LEVEL_HEADER 0x1 /* kernel dump header only */
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#define DUMP_LEVEL_KERN 0x2 /* dump header and kernel pages */
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#define DUMP_LEVEL_USED 0x4 /* dump header, kernel/user pages */
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#define DUMP_LEVEL_ALL 0x8 /* dump header, all memory pages */
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/* dump compression options -- add as necessary */
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#define DUMP_COMPRESS_NONE 0x0 /* don't compress this dump */
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#define DUMP_COMPRESS_RLE 0x1 /* use RLE compression */
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#define DUMP_COMPRESS_GZIP 0x2 /* use GZIP compression */
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/* dump flags - any dump-type specific flags -- add as necessary */
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#define DUMP_FLAGS_NONE 0x0 /* no flags are set for this dump */
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#define DUMP_FLAGS_NONDISRUPT 0x1 /* try to keep running after dump */
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/* dump header flags -- add as necessary */
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#define DUMP_DH_FLAGS_NONE 0x0 /* no flags set (error condition!) */
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#define DUMP_DH_RAW 0x1 /* raw page (no compression) */
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#define DUMP_DH_COMPRESSED 0x2 /* page is compressed */
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#define DUMP_DH_END 0x4 /* end marker on a full dump */
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/* names for various dump tunables (they are now all read-only) */
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#define DUMP_ROOT_NAME "sys/dump"
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#define DUMP_DEVICE_NAME "dump_device"
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#define DUMP_COMPRESS_NAME "dump_compress"
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#define DUMP_LEVEL_NAME "dump_level"
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#define DUMP_FLAGS_NAME "dump_flags"
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/* page size for gzip compression -- buffered beyond PAGE_SIZE slightly */
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#define DUMP_DPC_PAGE_SIZE (PAGE_SIZE + 512)
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/* dump ioctl() control options */
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#define DIOSDUMPDEV 1 /* set the dump device */
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#define DIOGDUMPDEV 2 /* get the dump device */
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#define DIOSDUMPLEVEL 3 /* set the dump level */
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#define DIOGDUMPLEVEL 4 /* get the dump level */
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#define DIOSDUMPFLAGS 5 /* set the dump flag parameters */
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#define DIOGDUMPFLAGS 6 /* get the dump flag parameters */
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#define DIOSDUMPCOMPRESS 7 /* set the dump compress level */
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#define DIOGDUMPCOMPRESS 8 /* get the dump compress level */
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/* the major number used for the dumping device */
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#ifndef DUMP_MAJOR
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#define DUMP_MAJOR 227
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#endif
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/*
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* Structure: dump_header_t
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* Function: This is the header dumped at the top of every valid crash
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* dump.
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* easy reassembly of each crash dump page. The address bits
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* are split to make things easier for 64-bit/32-bit system
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* conversions.
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*/
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typedef struct _dump_header_s {
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/* the dump magic number -- unique to verify dump is valid */
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uint64_t dh_magic_number;
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/* the version number of this dump */
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uint32_t dh_version;
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/* the size of this header (in case we can't read it) */
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uint32_t dh_header_size;
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/* the level of this dump (just a header?) */
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uint32_t dh_dump_level;
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/* the size of a Linux memory page (4K, 8K, 16K, etc.) */
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uint32_t dh_page_size;
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/* the size of all physical memory */
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uint64_t dh_memory_size;
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/* the start of physical memory */
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uint64_t dh_memory_start;
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/* the end of physical memory */
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uint64_t dh_memory_end;
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/* the number of pages in this dump specifically */
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uint32_t dh_num_pages;
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/* the panic string, if available */
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char dh_panic_string[DUMP_PANIC_LEN];
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/* timeval depends on architecture, two long values */
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struct {
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uint64_t tv_sec;
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uint64_t tv_usec;
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} dh_time; /* the time of the system crash */
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/* the NEW utsname (uname) information -- in character form */
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/* we do this so we don't have to include utsname.h */
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/* plus it helps us be more architecture independent */
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/* now maybe one day soon they'll make the [65] a #define! */
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char dh_utsname_sysname[65];
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char dh_utsname_nodename[65];
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char dh_utsname_release[65];
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char dh_utsname_version[65];
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char dh_utsname_machine[65];
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char dh_utsname_domainname[65];
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/* the address of current task (OLD = task_struct *, NEW = void *) */
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uint64_t dh_current_task;
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/* what type of compression we're using in this dump (if any) */
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uint32_t dh_dump_compress;
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/* any additional flags */
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uint32_t dh_dump_flags;
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/* any additional flags */
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uint32_t dh_dump_device;
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} __attribute__((packed)) dump_header_t;
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/*
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* Structure: dump_page_t
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* Function: To act as the header associated to each physical page of
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* memory saved in the system crash dump. This allows for
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* easy reassembly of each crash dump page. The address bits
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* are split to make things easier for 64-bit/32-bit system
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* conversions.
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*/
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typedef struct _dump_page_s {
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/* the address of this dump page */
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uint64_t dp_address;
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/* the size of this dump page */
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uint32_t dp_size;
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/* flags (currently DUMP_COMPRESSED, DUMP_RAW or DUMP_END) */
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uint32_t dp_flags;
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} __attribute__((packed)) dump_page_t;
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/*
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* This structure contains information needed for the lkcdutils
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* package (particularly lcrash) to determine what information is
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* associated to this kernel, specifically.
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*/
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typedef struct lkcdinfo_s {
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int arch;
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int ptrsz;
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int byte_order;
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int linux_release;
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int page_shift;
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int page_size;
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uint64_t page_mask;
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uint64_t page_offset;
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int stack_offset;
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} lkcdinfo_t;
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#define DUMP_ASM_MAGIC_NUMBER 0xdeaddeadULL /* magic number */
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struct pt_regs {
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/* The following registers are saved by SAVE_MIN: */
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unsigned long b6; /* scratch */
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unsigned long b7; /* scratch */
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unsigned long ar_csd; /* used by cmp8xchg16 (scratch) */
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unsigned long ar_ssd; /* reserved for future use (scratch) */
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unsigned long r8; /* scratch (return value register 0) */
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unsigned long r9; /* scratch (return value register 1) */
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unsigned long r10; /* scratch (return value register 2) */
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unsigned long r11; /* scratch (return value register 3) */
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unsigned long cr_ipsr; /* interrupted task's psr */
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unsigned long cr_iip; /* interrupted task's instruction pointer */
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unsigned long cr_ifs; /* interrupted task's function state */
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unsigned long ar_unat; /* interrupted task's NaT register (preserved) */
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unsigned long ar_pfs; /* prev function state */
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unsigned long ar_rsc; /* RSE configuration */
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/* The following two are valid only if cr_ipsr.cpl > 0: */
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unsigned long ar_rnat; /* RSE NaT */
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unsigned long ar_bspstore; /* RSE bspstore */
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unsigned long pr; /* 64 predicate registers (1 bit each) */
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unsigned long b0; /* return pointer (bp) */
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unsigned long loadrs; /* size of dirty partition << 16 */
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unsigned long r1; /* the gp pointer */
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unsigned long r12; /* interrupted task's memory stack pointer */
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unsigned long r13; /* thread pointer */
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unsigned long ar_fpsr; /* floating point status (preserved) */
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unsigned long r15; /* scratch */
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/* The remaining registers are NOT saved for system calls. */
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unsigned long r14; /* scratch */
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unsigned long r2; /* scratch */
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unsigned long r3; /* scratch */
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/* The following registers are saved by SAVE_REST: */
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unsigned long r16; /* scratch */
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unsigned long r17; /* scratch */
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unsigned long r18; /* scratch */
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unsigned long r19; /* scratch */
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unsigned long r20; /* scratch */
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unsigned long r21; /* scratch */
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unsigned long r22; /* scratch */
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unsigned long r23; /* scratch */
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unsigned long r24; /* scratch */
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unsigned long r25; /* scratch */
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unsigned long r26; /* scratch */
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unsigned long r27; /* scratch */
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unsigned long r28; /* scratch */
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unsigned long r29; /* scratch */
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unsigned long r30; /* scratch */
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unsigned long r31; /* scratch */
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unsigned long ar_ccv; /* compare/exchange value (scratch) */
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/*
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* Floating point registers that the kernel considers scratch:
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*/
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struct ia64_fpreg f6; /* scratch */
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struct ia64_fpreg f7; /* scratch */
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struct ia64_fpreg f8; /* scratch */
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struct ia64_fpreg f9; /* scratch */
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struct ia64_fpreg f10; /* scratch */
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struct ia64_fpreg f11; /* scratch */
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};
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/*
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* Structure: dump_header_asm_t
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* Function: This is the header for architecture-specific stuff. It
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* follows right after the dump header.
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*
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*/
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typedef struct _dump_header_asm_s {
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/* the dump magic number -- unique to verify dump is valid */
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uint64_t dha_magic_number;
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/* the version number of this dump */
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uint32_t dha_version;
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/* the size of this header (in case we can't read it) */
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uint32_t dha_header_size;
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/* pointer to pt_regs */
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// struct pt_regs *dha_pt_regs; // version 4 changed this
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uint64_t dha_pt_regs;
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/* the dump registers */
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struct pt_regs dha_regs;
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/* the rnat register saved after flushrs */
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uint64_t dha_rnat;
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/* the pfs register saved after flushrs */
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uint64_t dha_pfs;
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/* the bspstore register saved after flushrs */
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uint64_t dha_bspstore;
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/* smp specific */
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uint32_t dha_smp_num_cpus;
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uint32_t dha_dumping_cpu; // v4 changed this
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struct pt_regs dha_smp_regs[NR_CPUS];
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uint64_t dha_smp_current_task[NR_CPUS]; // v4 changed this
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uint64_t dha_stack[NR_CPUS]; // v4 changed this
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uint64_t dha_switch_stack[NR_CPUS]; // v4 changed this
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} __attribute__((packed)) dump_header_asm_t;
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#endif // IA64
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