/* lkcd_v2_v3.c - core analysis suite * * Copyright (C) 1999, 2000, 2001, 2002 Mission Critical Linux, Inc. * Copyright (C) 2002, 2003, 2004, 2005 David Anderson * Copyright (C) 2002, 2003, 2004, 2005 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. */ #define LKCD_COMMON #include "defs.h" #define CONFIG_VMDUMP #include "lkcd_vmdump_v2_v3.h" static dump_header_t dump_header_v2_v3 = { 0 }; static dump_page_t dump_page = { 0 }; static dump_header_asm_t dump_header_asm = { 0 }; static void mclx_cache_page_headers_v3(void); /* * Verify and initialize the LKCD environment, storing the common data * in the global lkcd_environment structure. */ int lkcd_dump_init_v2_v3(FILE *fp, int fd) { int i; int eof; uint32_t pgcnt; dump_header_t *dh; dump_header_asm_t *dha; dump_page_t *dp; lkcd->fd = fd; lkcd->fp = fp; lseek(lkcd->fd, 0, SEEK_SET); dh = &dump_header_v2_v3; dha = &dump_header_asm; dp = &dump_page; if (read(lkcd->fd, dh, sizeof(dump_header_t)) != sizeof(dump_header_t)) return FALSE; if (dh->dh_version & LKCD_DUMP_MCLX_V1) lseek(lkcd->fd, MCLX_V1_PAGE_HEADER_CACHE, SEEK_CUR); if (read(lkcd->fd, dha, sizeof(dump_header_asm_t)) != sizeof(dump_header_asm_t)) return FALSE; lkcd->dump_page = dp; lkcd->dump_header = dh; lkcd->dump_header_asm = dha; if (lkcd->debug) dump_lkcd_environment(LKCD_DUMP_HEADER_ONLY); /* * Allocate and clear the benchmark offsets, one per megabyte. */ lkcd->page_size = dh->dh_page_size; lkcd->page_shift = ffs(lkcd->page_size) - 1; lkcd->bits = sizeof(long) * 8; lkcd->benchmark_pages = (dh->dh_num_pages/LKCD_PAGES_PER_MEGABYTE())+1; lkcd->total_pages = dh->dh_num_pages; lkcd->zone_shift = ffs(ZONE_SIZE) - 1; lkcd->zone_mask = ~(ZONE_SIZE - 1); lkcd->num_zones = 0; lkcd->max_zones = 0; lkcd->zoned_offsets = 0; lkcd->get_dp_flags = get_dp_flags_v2_v3; lkcd->get_dp_address = get_dp_address_v2_v3; lkcd->get_dp_size = get_dp_size_v2_v3; lkcd->compression = LKCD_DUMP_COMPRESS_RLE; lkcd->page_header_size = sizeof(dump_page_t); lseek(lkcd->fd, LKCD_OFFSET_TO_FIRST_PAGE, SEEK_SET); for (pgcnt = 0, eof = FALSE; !eof; pgcnt++) { switch (lkcd_load_dump_page_header(dp, pgcnt)) { case LKCD_DUMPFILE_OK: case LKCD_DUMPFILE_END: break; case LKCD_DUMPFILE_EOF: lkcd_print("reached EOF\n"); eof = TRUE; continue; } if (dp->dp_flags & ~(DUMP_COMPRESSED|DUMP_RAW|DUMP_END|LKCD_DUMP_MCLX_V0)) { lkcd_print("unknown page flag in dump: %lx\n", dp->dp_flags); } if (dp->dp_flags & (LKCD_DUMP_MCLX_V0|LKCD_DUMP_MCLX_V1)) lkcd->flags |= LKCD_MCLX; if (dp->dp_size > 4096) { lkcd_print("dp_size > 4096: %d\n", dp->dp_size); dump_lkcd_environment(LKCD_DUMP_PAGE_ONLY); } if (dp->dp_flags & DUMP_END) { lkcd_print("found DUMP_END\n"); break; } lseek(lkcd->fd, dp->dp_size, SEEK_CUR); if (!LKCD_DEBUG(2)) break; } /* * Allocate space for LKCD_CACHED_PAGES data pages plus one to * contain a copy of the compressed data of the current page. */ if ((lkcd->page_cache_buf = (char *)malloc (dh->dh_page_size * (LKCD_CACHED_PAGES))) == NULL) return FALSE; /* * Clear the page data areas. */ lkcd_free_memory(); for (i = 0; i < LKCD_CACHED_PAGES; i++) { lkcd->page_cache_hdr[i].pg_bufptr = &lkcd->page_cache_buf[i * dh->dh_page_size]; } if ((lkcd->compressed_page = (char *)malloc(dh->dh_page_size)) == NULL) return FALSE; if ((lkcd->page_hash = (struct page_hash_entry *)calloc (LKCD_PAGE_HASH, sizeof(struct page_hash_entry))) == NULL) return FALSE; lkcd->total_pages = eof || (pgcnt > dh->dh_num_pages) ? pgcnt : dh->dh_num_pages; lkcd->panic_task = (ulong)dh->dh_current_task; lkcd->panic_string = (char *)&dh->dh_panic_string[0]; if (dh->dh_version & LKCD_DUMP_MCLX_V1) mclx_cache_page_headers_v3(); if (!fp) lkcd->flags |= LKCD_REMOTE; lkcd->flags |= LKCD_VALID; return TRUE; } /* * Return the current page's dp_size. */ uint32_t get_dp_size_v2_v3(void) { dump_page_t *dp; dp = (dump_page_t *)lkcd->dump_page; return(dp->dp_size); } /* * Return the current page's dp_flags. */ uint32_t get_dp_flags_v2_v3(void) { dump_page_t *dp; dp = (dump_page_t *)lkcd->dump_page; return(dp->dp_flags); } /* * Return the current page's dp_address. */ uint64_t get_dp_address_v2_v3(void) { dump_page_t *dp; dp = (dump_page_t *)lkcd->dump_page; return(dp->dp_address); } void dump_dump_page_v2_v3(char *s, void *dpp) { dump_page_t *dp; uint32_t flags; int others; console(s); dp = (dump_page_t *)dpp; others = 0; console(BITS32() ? "dp_address: %llx " : "dp_address: %lx ", dp->dp_address); console("dp_size: %ld ", dp->dp_size); console("dp_flags: %lx (", flags = dp->dp_flags); if (flags & DUMP_COMPRESSED) console("DUMP_COMPRESSED", others++); if (flags & DUMP_RAW) console("%sDUMP_RAW", others++ ? "|" : ""); if (flags & DUMP_END) console("%sDUMP_END", others++ ? "|" : ""); if (flags & LKCD_DUMP_MCLX_V0) console("%sLKCD_DUMP_MCLX_V0", others++ ? "|" : ""); console(")\n"); } /* * help -S output, or as specified by arg. */ void dump_lkcd_environment_v2_v3(ulong arg) { int others; dump_header_t *dh; dump_header_asm_t *dha; dump_page_t *dp; dh = (dump_header_t *)lkcd->dump_header; dha = (dump_header_asm_t *)lkcd->dump_header_asm; dp = (dump_page_t *)lkcd->dump_page; if (arg == LKCD_DUMP_HEADER_ONLY) goto dump_header_only; if (arg == LKCD_DUMP_PAGE_ONLY) goto dump_page_only; dump_header_only: lkcd_print(" dump_header:\n"); lkcd_print(" dh_magic_number: "); lkcd_print(BITS32() ? "%llx " : "%lx ", dh->dh_magic_number); if (dh->dh_magic_number == DUMP_MAGIC_NUMBER) lkcd_print("(DUMP_MAGIC_NUMBER)\n"); else lkcd_print("(?)\n"); others = 0; lkcd_print(" dh_version: "); lkcd_print(BITS32() ? "%lx (" : "%x (", dh->dh_version); switch (dh->dh_version & LKCD_DUMP_VERSION_NUMBER_MASK) { case LKCD_DUMP_V1: lkcd_print("%sLKCD_DUMP_V1", others++ ? "|" : ""); break; case LKCD_DUMP_V2: lkcd_print("%sLKCD_DUMP_V2", others++ ? "|" : ""); break; case LKCD_DUMP_V3: lkcd_print("%sLKCD_DUMP_V3", others++ ? "|" : ""); break; } if (dh->dh_version & LKCD_DUMP_MCLX_V0) lkcd_print("%sLKCD_DUMP_MCLX_V0", others++ ? "|" : ""); if (dh->dh_version & LKCD_DUMP_MCLX_V1) lkcd_print("%sLKCD_DUMP_MCLX_V1", others++ ? "|" : ""); lkcd_print(")\n"); lkcd_print(" dh_header_size: "); lkcd_print(BITS32() ? "%ld\n" : "%d\n", dh->dh_header_size); lkcd_print(" dh_dump_level: "); lkcd_print(BITS32() ? "%lx (" : "%x (", dh->dh_dump_level); others = 0; if (dh->dh_dump_level & DUMP_HEADER) lkcd_print("%sDUMP_HEADER", others++ ? "|" : ""); if (dh->dh_dump_level & DUMP_KERN) lkcd_print("%sDUMP_KERN", others++ ? "|" : ""); if (dh->dh_dump_level & DUMP_USED) lkcd_print("%sDUMP_USED", others++ ? "|" : ""); if (dh->dh_dump_level & DUMP_ALL) lkcd_print("%sDUMP_ALL", others++ ? "|" : ""); lkcd_print(")\n"); lkcd_print(" dh_page_size: "); lkcd_print(BITS32() ? "%ld\n" : "%d\n", dh->dh_page_size); lkcd_print(" dh_memory_size: "); lkcd_print(BITS32() ? "%lld\n" : "%ld\n", dh->dh_memory_size); lkcd_print(" dh_memory_start: "); lkcd_print(BITS32() ? "%llx\n" : "%lx\n", dh->dh_memory_start); lkcd_print(" dh_memory_end: "); lkcd_print(BITS32() ? "%llx\n" : "%lx\n", dh->dh_memory_end); lkcd_print(" dh_num_pages: "); lkcd_print(BITS32() ? "%ld\n" : "%d\n", dh->dh_num_pages); lkcd_print(" dh_panic_string: %s%s", dh->dh_panic_string, dh && strstr(dh->dh_panic_string, "\n") ? "" : "\n"); lkcd_print(" dh_time: %s\n", strip_linefeeds(ctime(&(dh->dh_time.tv_sec)))); lkcd_print(" dh_utsname:\n"); lkcd_print(" sysname: %s\n", dh->dh_utsname.sysname); lkcd_print(" nodename: %s\n", dh->dh_utsname.nodename); lkcd_print(" release: %s\n", dh->dh_utsname.release); lkcd_print(" version: %s\n", dh->dh_utsname.version); lkcd_print(" machine: %s\n", dh->dh_utsname.machine); lkcd_print(" domainname: %s\n", dh->dh_utsname.domainname); lkcd_print(" dh_current_task: %lx\n", dh->dh_current_task); lkcd_print("dha_magic_number: "); lkcd_print(BITS32() ? "%llx " : "%lx ", dha->dha_magic_number); if (dha->dha_magic_number == DUMP_ASM_MAGIC_NUMBER) lkcd_print("(DUMP_ASM_MAGIC_NUMBER)\n"); else lkcd_print("(?)\n"); lkcd_print(" dha_version: "); lkcd_print(BITS32() ? "%ld\n" : "%d\n", dha->dha_version); lkcd_print(" dha_header_size: "); lkcd_print(BITS32() ? "%ld\n" : "%d\n", dha->dha_header_size); #ifdef X86 lkcd_print(" dha_esp: %lx\n", dha->dha_esp); lkcd_print(" dha_eip: %lx\n", dha->dha_eip); #endif #if defined PPC || ALPHA || IA64 /* TBD */ #endif lkcd_print(" dha_regs:\n"); #ifdef PPC lkcd_print(" (PowerPC register display TBD)\n"); #endif #ifdef IA64 lkcd_print(" (IA64 register display TBD)\n"); #endif #ifdef X86 lkcd_print(" ebx: %lx\n", dha->dha_regs.ebx); lkcd_print(" ecx: %lx\n", dha->dha_regs.ecx); lkcd_print(" edx: %lx\n", dha->dha_regs.edx); lkcd_print(" esi: %lx\n", dha->dha_regs.esi); lkcd_print(" edi: %lx\n", dha->dha_regs.edi); lkcd_print(" eax: %lx\n", dha->dha_regs.eax); lkcd_print(" xds: %x\n", dha->dha_regs.xds); lkcd_print(" xes: %x\n", dha->dha_regs.xes); lkcd_print(" orig_eax: %lx\n", dha->dha_regs.orig_eax); lkcd_print(" eip: %lx\n", dha->dha_regs.eip); lkcd_print(" xcs: %x\n", dha->dha_regs.xcs); lkcd_print(" eflags: %lx\n", dha->dha_regs.eflags); lkcd_print(" esp: %lx\n", dha->dha_regs.esp); lkcd_print(" xss: %x\n", dha->dha_regs.xss); #endif #ifdef ALPHA lkcd_print(" r0: %lx\n", dha->dha_regs.r0); lkcd_print(" r1: %lx\n", dha->dha_regs.r1); lkcd_print(" r2: %lx\n", dha->dha_regs.r2); lkcd_print(" r3: %lx\n", dha->dha_regs.r3); lkcd_print(" r4: %lx\n", dha->dha_regs.r4); lkcd_print(" r5: %lx\n", dha->dha_regs.r5); lkcd_print(" r6: %lx\n", dha->dha_regs.r6); lkcd_print(" r7: %lx\n", dha->dha_regs.r7); lkcd_print(" r8: %lx\n", dha->dha_regs.r8); lkcd_print(" r19: %lx\n", dha->dha_regs.r19); lkcd_print(" r20: %lx\n", dha->dha_regs.r20); lkcd_print(" r21: %lx\n", dha->dha_regs.r21); lkcd_print(" r22: %lx\n", dha->dha_regs.r22); lkcd_print(" r23: %lx\n", dha->dha_regs.r23); lkcd_print(" r24: %lx\n", dha->dha_regs.r24); lkcd_print(" r25: %lx\n", dha->dha_regs.r25); lkcd_print(" r26: %lx\n", dha->dha_regs.r26); lkcd_print(" r27: %lx\n", dha->dha_regs.r27); lkcd_print(" r28: %lx\n", dha->dha_regs.r28); lkcd_print(" hae: %lx\n", dha->dha_regs.hae); lkcd_print(" trap_a0: %lx\n", dha->dha_regs.trap_a0); lkcd_print(" trap_a1: %lx\n", dha->dha_regs.trap_a1); lkcd_print(" trap_a2: %lx\n", dha->dha_regs.trap_a2); lkcd_print(" ps: %lx\n", dha->dha_regs.ps); lkcd_print(" pc: %lx\n", dha->dha_regs.pc); lkcd_print(" gp: %lx\n", dha->dha_regs.gp); lkcd_print(" r16: %lx\n", dha->dha_regs.r16); lkcd_print(" r17: %lx\n", dha->dha_regs.r17); lkcd_print(" r18: %lx\n", dha->dha_regs.r18); #endif if (arg == LKCD_DUMP_HEADER_ONLY) return; dump_page_only: lkcd_print(" dump_page:\n"); lkcd_print(" dp_address: "); lkcd_print(BITS32() ? "%llx\n" : "%lx\n", dp->dp_address); lkcd_print(" dp_size: "); lkcd_print(BITS32() ? "%ld\n" : "%d\n", dp->dp_size); lkcd_print(" dp_flags: "); lkcd_print(BITS32() ? "%lx (" : "%x (", dp->dp_flags); others = 0; if (dp->dp_flags & DUMP_COMPRESSED) lkcd_print("DUMP_COMPRESSED", others++); if (dp->dp_flags & DUMP_RAW) lkcd_print("%sDUMP_RAW", others++ ? "|" : ""); if (dp->dp_flags & DUMP_END) lkcd_print("%sDUMP_END", others++ ? "|" : ""); if (dp->dp_flags & LKCD_DUMP_MCLX_V0) lkcd_print("%sLKCD_DUMP_MCLX_V0", others++ ? "|" : ""); lkcd_print(")\n"); } /* * Read the MCLX-enhanced page header cache. Verify the first one, which * is a pointer to the page header for address 1MB, and take the rest at * blind faith. Note that the page headers do not include the 64K dump * header offset, which must be added to the values found. */ static void mclx_cache_page_headers_v3(void) { int i; uint64_t physaddr1, physaddr2, page_headers[MCLX_PAGE_HEADERS]; dump_page_t dump_page, *dp; ulong granularity; if (LKCD_DEBUG(2)) /* dump headers have all been read */ return; if (lkcd->total_pages > MEGABYTES(1))/* greater than 4G not supported */ return; if (lseek(lkcd->fd, sizeof(dump_header_t), SEEK_SET) == -1) return; if (read(lkcd->fd, page_headers, MCLX_V1_PAGE_HEADER_CACHE) != MCLX_V1_PAGE_HEADER_CACHE) return; dp = &dump_page; /* * Determine the granularity between offsets. */ if (lseek(lkcd->fd, page_headers[0] + LKCD_OFFSET_TO_FIRST_PAGE, SEEK_SET) == -1) return; if (read(lkcd->fd, dp, lkcd->page_header_size) != lkcd->page_header_size) return; physaddr1 = (dp->dp_address - lkcd->kvbase) << lkcd->page_shift; if (lseek(lkcd->fd, page_headers[1] + LKCD_OFFSET_TO_FIRST_PAGE, SEEK_SET) == -1) return; if (read(lkcd->fd, dp, lkcd->page_header_size) != lkcd->page_header_size) return; physaddr2 = (dp->dp_address - lkcd->kvbase) << lkcd->page_shift; if ((physaddr1 % MEGABYTES(1)) || (physaddr2 % MEGABYTES(1)) || (physaddr2 < physaddr1)) return; granularity = physaddr2 - physaddr1; for (i = 0; i < (MCLX_PAGE_HEADERS-1); i++) { if (!page_headers[i]) break; lkcd->curhdroffs = page_headers[i] + LKCD_OFFSET_TO_FIRST_PAGE; set_mb_benchmark((granularity * (i+1))/lkcd->page_size); } }