diff --git a/kexec-tools-2.0.20-makedumpfile-printk-add-support-for-lockless-ringbuffer.patch b/kexec-tools-2.0.20-makedumpfile-printk-add-support-for-lockless-ringbuffer.patch deleted file mode 100644 index c445e76..0000000 --- a/kexec-tools-2.0.20-makedumpfile-printk-add-support-for-lockless-ringbuffer.patch +++ /dev/null @@ -1,587 +0,0 @@ -From c617ec63339222f3a44d73e36677a9acc8954ccd Mon Sep 17 00:00:00 2001 -From: John Ogness -Date: Thu, 19 Nov 2020 02:41:21 +0000 -Subject: [PATCH 1/2] [PATCH 1/2] printk: add support for lockless ringbuffer - -* Required for kernel 5.10 - -Linux 5.10 introduces a new lockless ringbuffer. The new ringbuffer -is structured completely different to the previous iterations. -Add support for retrieving the ringbuffer from debug information -and/or using vmcoreinfo. The new ringbuffer is detected based on -the availability of the "prb" symbol. - -Signed-off-by: John Ogness -Signed-off-by: Kazuhito Hagio ---- - Makefile | 2 +- - dwarf_info.c | 36 ++++++++- - makedumpfile.c | 103 +++++++++++++++++++++++- - makedumpfile.h | 58 ++++++++++++++ - printk.c | 207 +++++++++++++++++++++++++++++++++++++++++++++++++ - 5 files changed, 399 insertions(+), 7 deletions(-) - create mode 100644 printk.c - -diff --git a/makedumpfile-1.6.8/Makefile b/makedumpfile-1.6.8/Makefile -index e5ac71a..cb6bd42 100644 ---- a/makedumpfile-1.6.8/Makefile -+++ b/makedumpfile-1.6.8/Makefile -@@ -45,7 +45,7 @@ CFLAGS_ARCH += -m32 - endif - - SRC_BASE = makedumpfile.c makedumpfile.h diskdump_mod.h sadump_mod.h sadump_info.h --SRC_PART = print_info.c dwarf_info.c elf_info.c erase_info.c sadump_info.c cache.c tools.c -+SRC_PART = print_info.c dwarf_info.c elf_info.c erase_info.c sadump_info.c cache.c tools.c printk.c - OBJ_PART=$(patsubst %.c,%.o,$(SRC_PART)) - SRC_ARCH = arch/arm.c arch/arm64.c arch/x86.c arch/x86_64.c arch/ia64.c arch/ppc64.c arch/s390x.c arch/ppc.c arch/sparc64.c - OBJ_ARCH=$(patsubst %.c,%.o,$(SRC_ARCH)) -diff --git a/makedumpfile-1.6.8/dwarf_info.c b/makedumpfile-1.6.8/dwarf_info.c -index e42a9f5..543588b 100644 ---- a/makedumpfile-1.6.8/dwarf_info.c -+++ b/makedumpfile-1.6.8/dwarf_info.c -@@ -614,6 +614,7 @@ search_structure(Dwarf_Die *die, int *found) - { - int tag; - const char *name; -+ Dwarf_Die die_type; - - /* - * If we get to here then we don't have any more -@@ -622,9 +623,31 @@ search_structure(Dwarf_Die *die, int *found) - do { - tag = dwarf_tag(die); - name = dwarf_diename(die); -- if ((tag != DW_TAG_structure_type) || (!name) -- || strcmp(name, dwarf_info.struct_name)) -+ if ((!name) || strcmp(name, dwarf_info.struct_name)) -+ continue; -+ -+ if (tag == DW_TAG_typedef) { -+ if (!get_die_type(die, &die_type)) { -+ ERRMSG("Can't get CU die of DW_AT_type.\n"); -+ break; -+ } -+ -+ /* Resolve typedefs of typedefs. */ -+ while ((tag = dwarf_tag(&die_type)) == DW_TAG_typedef) { -+ if (!get_die_type(&die_type, &die_type)) { -+ ERRMSG("Can't get CU die of DW_AT_type.\n"); -+ return; -+ } -+ } -+ -+ if (tag != DW_TAG_structure_type) -+ continue; -+ die = &die_type; -+ -+ } else if (tag != DW_TAG_structure_type) { - continue; -+ } -+ - /* - * Skip if DW_AT_byte_size is not included. - */ -@@ -740,6 +763,15 @@ search_typedef(Dwarf_Die *die, int *found) - ERRMSG("Can't get CU die of DW_AT_type.\n"); - break; - } -+ -+ /* Resolve typedefs of typedefs. */ -+ while ((tag = dwarf_tag(&die_type)) == DW_TAG_typedef) { -+ if (!get_die_type(&die_type, &die_type)) { -+ ERRMSG("Can't get CU die of DW_AT_type.\n"); -+ return; -+ } -+ } -+ - dwarf_info.struct_size = dwarf_bytesize(&die_type); - if (dwarf_info.struct_size <= 0) - continue; -diff --git a/makedumpfile-1.6.8/makedumpfile.c b/makedumpfile-1.6.8/makedumpfile.c -index cdde040..061741f 100644 ---- a/makedumpfile-1.6.8/makedumpfile.c -+++ b/makedumpfile-1.6.8/makedumpfile.c -@@ -1555,6 +1555,7 @@ get_symbol_info(void) - SYMBOL_INIT(node_data, "node_data"); - SYMBOL_INIT(pgdat_list, "pgdat_list"); - SYMBOL_INIT(contig_page_data, "contig_page_data"); -+ SYMBOL_INIT(prb, "prb"); - SYMBOL_INIT(log_buf, "log_buf"); - SYMBOL_INIT(log_buf_len, "log_buf_len"); - SYMBOL_INIT(log_end, "log_end"); -@@ -1971,16 +1972,47 @@ get_structure_info(void) - OFFSET_INIT(elf64_phdr.p_memsz, "elf64_phdr", "p_memsz"); - - SIZE_INIT(printk_log, "printk_log"); -- if (SIZE(printk_log) != NOT_FOUND_STRUCTURE) { -+ SIZE_INIT(printk_ringbuffer, "printk_ringbuffer"); -+ if ((SIZE(printk_ringbuffer) != NOT_FOUND_STRUCTURE)) { -+ info->flag_use_printk_ringbuffer = TRUE; -+ info->flag_use_printk_log = FALSE; -+ -+ OFFSET_INIT(printk_ringbuffer.desc_ring, "printk_ringbuffer", "desc_ring"); -+ OFFSET_INIT(printk_ringbuffer.text_data_ring, "printk_ringbuffer", "text_data_ring"); -+ -+ OFFSET_INIT(prb_desc_ring.count_bits, "prb_desc_ring", "count_bits"); -+ OFFSET_INIT(prb_desc_ring.descs, "prb_desc_ring", "descs"); -+ OFFSET_INIT(prb_desc_ring.infos, "prb_desc_ring", "infos"); -+ OFFSET_INIT(prb_desc_ring.head_id, "prb_desc_ring", "head_id"); -+ OFFSET_INIT(prb_desc_ring.tail_id, "prb_desc_ring", "tail_id"); -+ -+ SIZE_INIT(prb_desc, "prb_desc"); -+ OFFSET_INIT(prb_desc.state_var, "prb_desc", "state_var"); -+ OFFSET_INIT(prb_desc.text_blk_lpos, "prb_desc", "text_blk_lpos"); -+ -+ OFFSET_INIT(prb_data_blk_lpos.begin, "prb_data_blk_lpos", "begin"); -+ OFFSET_INIT(prb_data_blk_lpos.next, "prb_data_blk_lpos", "next"); -+ -+ OFFSET_INIT(prb_data_ring.size_bits, "prb_data_ring", "size_bits"); -+ OFFSET_INIT(prb_data_ring.data, "prb_data_ring", "data"); -+ -+ SIZE_INIT(printk_info, "printk_info"); -+ OFFSET_INIT(printk_info.ts_nsec, "printk_info", "ts_nsec"); -+ OFFSET_INIT(printk_info.text_len, "printk_info", "text_len"); -+ -+ OFFSET_INIT(atomic_long_t.counter, "atomic_long_t", "counter"); -+ } else if (SIZE(printk_log) != NOT_FOUND_STRUCTURE) { - /* - * In kernel 3.11-rc4 the log structure name was renamed - * to "printk_log". - */ -+ info->flag_use_printk_ringbuffer = FALSE; - info->flag_use_printk_log = TRUE; - OFFSET_INIT(printk_log.ts_nsec, "printk_log", "ts_nsec"); - OFFSET_INIT(printk_log.len, "printk_log", "len"); - OFFSET_INIT(printk_log.text_len, "printk_log", "text_len"); - } else { -+ info->flag_use_printk_ringbuffer = FALSE; - info->flag_use_printk_log = FALSE; - SIZE_INIT(printk_log, "log"); - OFFSET_INIT(printk_log.ts_nsec, "log", "ts_nsec"); -@@ -2191,6 +2223,7 @@ write_vmcoreinfo_data(void) - WRITE_SYMBOL("node_data", node_data); - WRITE_SYMBOL("pgdat_list", pgdat_list); - WRITE_SYMBOL("contig_page_data", contig_page_data); -+ WRITE_SYMBOL("prb", prb); - WRITE_SYMBOL("log_buf", log_buf); - WRITE_SYMBOL("log_buf_len", log_buf_len); - WRITE_SYMBOL("log_end", log_end); -@@ -2222,7 +2255,11 @@ write_vmcoreinfo_data(void) - WRITE_STRUCTURE_SIZE("node_memblk_s", node_memblk_s); - WRITE_STRUCTURE_SIZE("nodemask_t", nodemask_t); - WRITE_STRUCTURE_SIZE("pageflags", pageflags); -- if (info->flag_use_printk_log) -+ if (info->flag_use_printk_ringbuffer) { -+ WRITE_STRUCTURE_SIZE("printk_ringbuffer", printk_ringbuffer); -+ WRITE_STRUCTURE_SIZE("prb_desc", prb_desc); -+ WRITE_STRUCTURE_SIZE("printk_info", printk_info); -+ } else if (info->flag_use_printk_log) - WRITE_STRUCTURE_SIZE("printk_log", printk_log); - else - WRITE_STRUCTURE_SIZE("log", printk_log); -@@ -2268,7 +2305,30 @@ write_vmcoreinfo_data(void) - WRITE_MEMBER_OFFSET("vm_struct.addr", vm_struct.addr); - WRITE_MEMBER_OFFSET("vmap_area.va_start", vmap_area.va_start); - WRITE_MEMBER_OFFSET("vmap_area.list", vmap_area.list); -- if (info->flag_use_printk_log) { -+ if (info->flag_use_printk_ringbuffer) { -+ WRITE_MEMBER_OFFSET("printk_ringbuffer.desc_ring", printk_ringbuffer.desc_ring); -+ WRITE_MEMBER_OFFSET("printk_ringbuffer.text_data_ring", printk_ringbuffer.text_data_ring); -+ -+ WRITE_MEMBER_OFFSET("prb_desc_ring.count_bits", prb_desc_ring.count_bits); -+ WRITE_MEMBER_OFFSET("prb_desc_ring.descs", prb_desc_ring.descs); -+ WRITE_MEMBER_OFFSET("prb_desc_ring.infos", prb_desc_ring.infos); -+ WRITE_MEMBER_OFFSET("prb_desc_ring.head_id", prb_desc_ring.head_id); -+ WRITE_MEMBER_OFFSET("prb_desc_ring.tail_id", prb_desc_ring.tail_id); -+ -+ WRITE_MEMBER_OFFSET("prb_desc.state_var", prb_desc.state_var); -+ WRITE_MEMBER_OFFSET("prb_desc.text_blk_lpos", prb_desc.text_blk_lpos); -+ -+ WRITE_MEMBER_OFFSET("prb_data_blk_lpos.begin", prb_data_blk_lpos.begin); -+ WRITE_MEMBER_OFFSET("prb_data_blk_lpos.next", prb_data_blk_lpos.next); -+ -+ WRITE_MEMBER_OFFSET("prb_data_ring.size_bits", prb_data_ring.size_bits); -+ WRITE_MEMBER_OFFSET("prb_data_ring.data", prb_data_ring.data); -+ -+ WRITE_MEMBER_OFFSET("printk_info.ts_nsec", printk_info.ts_nsec); -+ WRITE_MEMBER_OFFSET("printk_info.text_len", printk_info.text_len); -+ -+ WRITE_MEMBER_OFFSET("atomic_long_t.counter", atomic_long_t.counter); -+ } else if (info->flag_use_printk_log) { - WRITE_MEMBER_OFFSET("printk_log.ts_nsec", printk_log.ts_nsec); - WRITE_MEMBER_OFFSET("printk_log.len", printk_log.len); - WRITE_MEMBER_OFFSET("printk_log.text_len", printk_log.text_len); -@@ -2606,6 +2666,7 @@ read_vmcoreinfo(void) - READ_SYMBOL("node_data", node_data); - READ_SYMBOL("pgdat_list", pgdat_list); - READ_SYMBOL("contig_page_data", contig_page_data); -+ READ_SYMBOL("prb", prb); - READ_SYMBOL("log_buf", log_buf); - READ_SYMBOL("log_buf_len", log_buf_len); - READ_SYMBOL("log_end", log_end); -@@ -2684,12 +2745,43 @@ read_vmcoreinfo(void) - READ_MEMBER_OFFSET("cpu_spec.mmu_features", cpu_spec.mmu_features); - - READ_STRUCTURE_SIZE("printk_log", printk_log); -- if (SIZE(printk_log) != NOT_FOUND_STRUCTURE) { -+ READ_STRUCTURE_SIZE("printk_ringbuffer", printk_ringbuffer); -+ if (SIZE(printk_ringbuffer) != NOT_FOUND_STRUCTURE) { -+ info->flag_use_printk_ringbuffer = TRUE; -+ info->flag_use_printk_log = FALSE; -+ -+ READ_MEMBER_OFFSET("printk_ringbuffer.desc_ring", printk_ringbuffer.desc_ring); -+ READ_MEMBER_OFFSET("printk_ringbuffer.text_data_ring", printk_ringbuffer.text_data_ring); -+ -+ READ_MEMBER_OFFSET("prb_desc_ring.count_bits", prb_desc_ring.count_bits); -+ READ_MEMBER_OFFSET("prb_desc_ring.descs", prb_desc_ring.descs); -+ READ_MEMBER_OFFSET("prb_desc_ring.infos", prb_desc_ring.infos); -+ READ_MEMBER_OFFSET("prb_desc_ring.head_id", prb_desc_ring.head_id); -+ READ_MEMBER_OFFSET("prb_desc_ring.tail_id", prb_desc_ring.tail_id); -+ -+ READ_STRUCTURE_SIZE("prb_desc", prb_desc); -+ READ_MEMBER_OFFSET("prb_desc.state_var", prb_desc.state_var); -+ READ_MEMBER_OFFSET("prb_desc.text_blk_lpos", prb_desc.text_blk_lpos); -+ -+ READ_MEMBER_OFFSET("prb_data_blk_lpos.begin", prb_data_blk_lpos.begin); -+ READ_MEMBER_OFFSET("prb_data_blk_lpos.next", prb_data_blk_lpos.next); -+ -+ READ_MEMBER_OFFSET("prb_data_ring.size_bits", prb_data_ring.size_bits); -+ READ_MEMBER_OFFSET("prb_data_ring.data", prb_data_ring.data); -+ -+ READ_STRUCTURE_SIZE("printk_info", printk_info); -+ READ_MEMBER_OFFSET("printk_info.ts_nsec", printk_info.ts_nsec); -+ READ_MEMBER_OFFSET("printk_info.text_len", printk_info.text_len); -+ -+ READ_MEMBER_OFFSET("atomic_long_t.counter", atomic_long_t.counter); -+ } else if (SIZE(printk_log) != NOT_FOUND_STRUCTURE) { -+ info->flag_use_printk_ringbuffer = FALSE; - info->flag_use_printk_log = TRUE; - READ_MEMBER_OFFSET("printk_log.ts_nsec", printk_log.ts_nsec); - READ_MEMBER_OFFSET("printk_log.len", printk_log.len); - READ_MEMBER_OFFSET("printk_log.text_len", printk_log.text_len); - } else { -+ info->flag_use_printk_ringbuffer = FALSE; - info->flag_use_printk_log = FALSE; - READ_STRUCTURE_SIZE("log", printk_log); - READ_MEMBER_OFFSET("log.ts_nsec", printk_log.ts_nsec); -@@ -5286,6 +5378,9 @@ dump_dmesg() - if (!initial()) - return FALSE; - -+ if ((SYMBOL(prb) != NOT_FOUND_SYMBOL)) -+ return dump_lockless_dmesg(); -+ - if ((SYMBOL(log_buf) == NOT_FOUND_SYMBOL) - || (SYMBOL(log_buf_len) == NOT_FOUND_SYMBOL)) { - ERRMSG("Can't find some symbols for log_buf.\n"); -diff --git a/makedumpfile-1.6.8/makedumpfile.h b/makedumpfile-1.6.8/makedumpfile.h -index 698c054..47f7e79 100644 ---- a/makedumpfile-1.6.8/makedumpfile.h -+++ b/makedumpfile-1.6.8/makedumpfile.h -@@ -1317,6 +1317,7 @@ struct DumpInfo { - int flag_partial_dmesg; /* dmesg dump only from the last cleared index*/ - int flag_mem_usage; /*show the page number of memory in different use*/ - int flag_use_printk_log; /* did we read printk_log symbol name? */ -+ int flag_use_printk_ringbuffer; /* using lockless printk ringbuffer? */ - int flag_nospace; /* the flag of "No space on device" error */ - int flag_vmemmap; /* kernel supports vmemmap address space */ - int flag_excludevm; /* -e - excluding unused vmemmap pages */ -@@ -1602,6 +1603,7 @@ struct symbol_table { - unsigned long long node_data; - unsigned long long pgdat_list; - unsigned long long contig_page_data; -+ unsigned long long prb; - unsigned long long log_buf; - unsigned long long log_buf_len; - unsigned long long log_end; -@@ -1689,6 +1691,13 @@ struct size_table { - long nodemask_t; - long printk_log; - -+ /* -+ * for lockless printk ringbuffer -+ */ -+ long printk_ringbuffer; -+ long prb_desc; -+ long printk_info; -+ - /* - * for Xen extraction - */ -@@ -1864,6 +1873,52 @@ struct offset_table { - long text_len; - } printk_log; - -+ /* -+ * for lockless printk ringbuffer -+ */ -+ struct printk_ringbuffer_s { -+ long desc_ring; -+ long text_data_ring; -+ long fail; -+ } printk_ringbuffer; -+ -+ struct prb_desc_ring_s { -+ long count_bits; -+ long descs; -+ long infos; -+ long head_id; -+ long tail_id; -+ } prb_desc_ring; -+ -+ struct prb_desc_s { -+ long state_var; -+ long text_blk_lpos; -+ } prb_desc; -+ -+ struct prb_data_blk_lpos_s { -+ long begin; -+ long next; -+ } prb_data_blk_lpos; -+ -+ struct printk_info_s { -+ long seq; -+ long ts_nsec; -+ long text_len; -+ long caller_id; -+ long dev_info; -+ } printk_info; -+ -+ struct prb_data_ring_s { -+ long size_bits; -+ long data; -+ long head_lpos; -+ long tail_lpos; -+ } prb_data_ring; -+ -+ struct atomic_long_t_s { -+ long counter; -+ } atomic_long_t; -+ - /* - * symbols on ppc64 arch - */ -@@ -2390,4 +2445,7 @@ int hexadecimal(char *s, int count); - int decimal(char *s, int count); - int file_exists(char *file); - -+int open_dump_file(void); -+int dump_lockless_dmesg(void); -+ - #endif /* MAKEDUMPFILE_H */ -diff --git a/makedumpfile-1.6.8/printk.c b/makedumpfile-1.6.8/printk.c -new file mode 100644 -index 0000000..acffb6c ---- /dev/null -+++ b/makedumpfile-1.6.8/printk.c -@@ -0,0 +1,207 @@ -+#include "makedumpfile.h" -+#include -+ -+#define DESC_SV_BITS (sizeof(unsigned long) * 8) -+#define DESC_COMMITTED_MASK (1UL << (DESC_SV_BITS - 1)) -+#define DESC_REUSE_MASK (1UL << (DESC_SV_BITS - 2)) -+#define DESC_FLAGS_MASK (DESC_COMMITTED_MASK | DESC_REUSE_MASK) -+#define DESC_ID_MASK (~DESC_FLAGS_MASK) -+ -+/* convenience struct for passing many values to helper functions */ -+struct prb_map { -+ char *prb; -+ -+ char *desc_ring; -+ unsigned long desc_ring_count; -+ char *descs; -+ char *infos; -+ -+ char *text_data_ring; -+ unsigned long text_data_ring_size; -+ char *text_data; -+}; -+ -+static void -+dump_record(struct prb_map *m, unsigned long id) -+{ -+ unsigned long long ts_nsec; -+ unsigned long state_var; -+ unsigned short text_len; -+ unsigned long begin; -+ unsigned long next; -+ char buf[BUFSIZE]; -+ ulonglong nanos; -+ int indent_len; -+ int buf_need; -+ char *bufp; -+ char *text; -+ char *desc; -+ char *inf; -+ ulong rem; -+ char *p; -+ int i; -+ -+ desc = m->descs + ((id % m->desc_ring_count) * SIZE(prb_desc)); -+ -+ /* skip non-committed record */ -+ state_var = ULONG(desc + OFFSET(prb_desc.state_var) + OFFSET(atomic_long_t.counter)); -+ if ((state_var & DESC_FLAGS_MASK) != DESC_COMMITTED_MASK) -+ return; -+ -+ begin = ULONG(desc + OFFSET(prb_desc.text_blk_lpos) + OFFSET(prb_data_blk_lpos.begin)) % -+ m->text_data_ring_size; -+ next = ULONG(desc + OFFSET(prb_desc.text_blk_lpos) + OFFSET(prb_data_blk_lpos.next)) % -+ m->text_data_ring_size; -+ -+ /* skip data-less text blocks */ -+ if (begin == next) -+ return; -+ -+ inf = m->infos + ((id % m->desc_ring_count) * SIZE(printk_info)); -+ -+ text_len = USHORT(inf + OFFSET(printk_info.text_len)); -+ -+ /* handle wrapping data block */ -+ if (begin > next) -+ begin = 0; -+ -+ /* skip over descriptor ID */ -+ begin += sizeof(unsigned long); -+ -+ /* handle truncated messages */ -+ if (next - begin < text_len) -+ text_len = next - begin; -+ -+ text = m->text_data + begin; -+ -+ ts_nsec = ULONGLONG(inf + OFFSET(printk_info.ts_nsec)); -+ nanos = (ulonglong)ts_nsec / (ulonglong)1000000000; -+ rem = (ulonglong)ts_nsec % (ulonglong)1000000000; -+ -+ bufp = buf; -+ bufp += sprintf(buf, "[%5lld.%06ld] ", nanos, rem/1000); -+ indent_len = strlen(buf); -+ -+ /* How much buffer space is needed in the worst case */ -+ buf_need = MAX(sizeof("\\xXX\n"), sizeof("\n") + indent_len); -+ -+ for (i = 0, p = text; i < text_len; i++, p++) { -+ if (bufp - buf >= sizeof(buf) - buf_need) { -+ if (write(info->fd_dumpfile, buf, bufp - buf) < 0) -+ return; -+ bufp = buf; -+ } -+ -+ if (*p == '\n') -+ bufp += sprintf(bufp, "\n%-*s", indent_len, ""); -+ else if (isprint(*p) || isspace(*p)) -+ *bufp++ = *p; -+ else -+ bufp += sprintf(bufp, "\\x%02x", *p); -+ } -+ -+ *bufp++ = '\n'; -+ -+ write(info->fd_dumpfile, buf, bufp - buf); -+} -+ -+int -+dump_lockless_dmesg(void) -+{ -+ unsigned long head_id; -+ unsigned long tail_id; -+ unsigned long kaddr; -+ unsigned long id; -+ struct prb_map m; -+ int ret = FALSE; -+ -+ /* setup printk_ringbuffer */ -+ if (!readmem(VADDR, SYMBOL(prb), &kaddr, sizeof(kaddr))) { -+ ERRMSG("Can't get the prb address.\n"); -+ return ret; -+ } -+ -+ m.prb = malloc(SIZE(printk_ringbuffer)); -+ if (!m.prb) { -+ ERRMSG("Can't allocate memory for prb.\n"); -+ return ret; -+ } -+ if (!readmem(VADDR, kaddr, m.prb, SIZE(printk_ringbuffer))) { -+ ERRMSG("Can't get prb.\n"); -+ goto out_prb; -+ } -+ -+ /* setup descriptor ring */ -+ m.desc_ring = m.prb + OFFSET(printk_ringbuffer.desc_ring); -+ m.desc_ring_count = 1 << UINT(m.desc_ring + OFFSET(prb_desc_ring.count_bits)); -+ -+ kaddr = ULONG(m.desc_ring + OFFSET(prb_desc_ring.descs)); -+ m.descs = malloc(SIZE(prb_desc) * m.desc_ring_count); -+ if (!m.descs) { -+ ERRMSG("Can't allocate memory for prb.desc_ring.descs.\n"); -+ goto out_prb; -+ } -+ if (!readmem(VADDR, kaddr, m.descs, -+ SIZE(prb_desc) * m.desc_ring_count)) { -+ ERRMSG("Can't get prb.desc_ring.descs.\n"); -+ goto out_descs; -+ } -+ -+ kaddr = ULONG(m.desc_ring + OFFSET(prb_desc_ring.infos)); -+ m.infos = malloc(SIZE(printk_info) * m.desc_ring_count); -+ if (!m.infos) { -+ ERRMSG("Can't allocate memory for prb.desc_ring.infos.\n"); -+ goto out_descs; -+ } -+ if (!readmem(VADDR, kaddr, m.infos, SIZE(printk_info) * m.desc_ring_count)) { -+ ERRMSG("Can't get prb.desc_ring.infos.\n"); -+ goto out_infos; -+ } -+ -+ /* setup text data ring */ -+ m.text_data_ring = m.prb + OFFSET(printk_ringbuffer.text_data_ring); -+ m.text_data_ring_size = 1 << UINT(m.text_data_ring + OFFSET(prb_data_ring.size_bits)); -+ -+ kaddr = ULONG(m.text_data_ring + OFFSET(prb_data_ring.data)); -+ m.text_data = malloc(m.text_data_ring_size); -+ if (!m.text_data) { -+ ERRMSG("Can't allocate memory for prb.text_data_ring.data.\n"); -+ goto out_infos; -+ } -+ if (!readmem(VADDR, kaddr, m.text_data, m.text_data_ring_size)) { -+ ERRMSG("Can't get prb.text_data_ring.\n"); -+ goto out_text_data; -+ } -+ -+ /* ready to go */ -+ -+ tail_id = ULONG(m.desc_ring + OFFSET(prb_desc_ring.tail_id) + -+ OFFSET(atomic_long_t.counter)); -+ head_id = ULONG(m.desc_ring + OFFSET(prb_desc_ring.head_id) + -+ OFFSET(atomic_long_t.counter)); -+ -+ if (!open_dump_file()) { -+ ERRMSG("Can't open output file.\n"); -+ goto out_text_data; -+ } -+ -+ for (id = tail_id; id != head_id; id = (id + 1) & DESC_ID_MASK) -+ dump_record(&m, id); -+ -+ /* dump head record */ -+ dump_record(&m, id); -+ -+ if (!close_files_for_creating_dumpfile()) -+ goto out_text_data; -+ -+ ret = TRUE; -+out_text_data: -+ free(m.text_data); -+out_infos: -+ free(m.infos); -+out_descs: -+ free(m.descs); -+out_prb: -+ free(m.prb); -+ return ret; -+} --- -2.29.2 - diff --git a/kexec-tools-2.0.20-makedumpfile-printk-use-committed-finalized-state-value.patch b/kexec-tools-2.0.20-makedumpfile-printk-use-committed-finalized-state-value.patch deleted file mode 100644 index 8ec27bf..0000000 --- a/kexec-tools-2.0.20-makedumpfile-printk-use-committed-finalized-state-value.patch +++ /dev/null @@ -1,99 +0,0 @@ -From 44b073b7ec467aee0d7de381d455b8ace1199184 Mon Sep 17 00:00:00 2001 -From: John Ogness -Date: Wed, 25 Nov 2020 10:10:31 +0106 -Subject: [PATCH 2/2] [PATCH 2/2] printk: use committed/finalized state values - -* Required for kernel 5.10 - -The ringbuffer entries use 2 state values (committed and finalized) -rather than a single flag to represent being available for reading. -Copy the definitions and state lookup function directly from the -kernel source and use the new states. - -Signed-off-by: John Ogness ---- - printk.c | 48 +++++++++++++++++++++++++++++++++++++++++------- - 1 file changed, 41 insertions(+), 7 deletions(-) - -diff --git a/makedumpfile-1.6.8/printk.c b/makedumpfile-1.6.8/printk.c -index acffb6c..2af8562 100644 ---- a/makedumpfile-1.6.8/printk.c -+++ b/makedumpfile-1.6.8/printk.c -@@ -1,12 +1,6 @@ - #include "makedumpfile.h" - #include - --#define DESC_SV_BITS (sizeof(unsigned long) * 8) --#define DESC_COMMITTED_MASK (1UL << (DESC_SV_BITS - 1)) --#define DESC_REUSE_MASK (1UL << (DESC_SV_BITS - 2)) --#define DESC_FLAGS_MASK (DESC_COMMITTED_MASK | DESC_REUSE_MASK) --#define DESC_ID_MASK (~DESC_FLAGS_MASK) -- - /* convenience struct for passing many values to helper functions */ - struct prb_map { - char *prb; -@@ -21,12 +15,51 @@ struct prb_map { - char *text_data; - }; - -+/* -+ * desc_state and DESC_* definitions taken from kernel source: -+ * -+ * kernel/printk/printk_ringbuffer.h -+ */ -+ -+/* The possible responses of a descriptor state-query. */ -+enum desc_state { -+ desc_miss = -1, /* ID mismatch (pseudo state) */ -+ desc_reserved = 0x0, /* reserved, in use by writer */ -+ desc_committed = 0x1, /* committed by writer, could get reopened */ -+ desc_finalized = 0x2, /* committed, no further modification allowed */ -+ desc_reusable = 0x3, /* free, not yet used by any writer */ -+}; -+ -+#define DESC_SV_BITS (sizeof(unsigned long) * 8) -+#define DESC_FLAGS_SHIFT (DESC_SV_BITS - 2) -+#define DESC_FLAGS_MASK (3UL << DESC_FLAGS_SHIFT) -+#define DESC_STATE(sv) (3UL & (sv >> DESC_FLAGS_SHIFT)) -+#define DESC_ID_MASK (~DESC_FLAGS_MASK) -+#define DESC_ID(sv) ((sv) & DESC_ID_MASK) -+ -+/* -+ * get_desc_state() taken from kernel source: -+ * -+ * kernel/printk/printk_ringbuffer.c -+ */ -+ -+/* Query the state of a descriptor. */ -+static enum desc_state get_desc_state(unsigned long id, -+ unsigned long state_val) -+{ -+ if (id != DESC_ID(state_val)) -+ return desc_miss; -+ -+ return DESC_STATE(state_val); -+} -+ - static void - dump_record(struct prb_map *m, unsigned long id) - { - unsigned long long ts_nsec; - unsigned long state_var; - unsigned short text_len; -+ enum desc_state state; - unsigned long begin; - unsigned long next; - char buf[BUFSIZE]; -@@ -45,7 +78,8 @@ dump_record(struct prb_map *m, unsigned long id) - - /* skip non-committed record */ - state_var = ULONG(desc + OFFSET(prb_desc.state_var) + OFFSET(atomic_long_t.counter)); -- if ((state_var & DESC_FLAGS_MASK) != DESC_COMMITTED_MASK) -+ state = get_desc_state(id, state_var); -+ if (state != desc_committed && state != desc_finalized) - return; - - begin = ULONG(desc + OFFSET(prb_desc.text_blk_lpos) + OFFSET(prb_data_blk_lpos.begin)) % --- -2.29.2 - diff --git a/kexec-tools-2.0.21-makedumpfile-make-use-of-uts_namespace.name-offset-in-VMCOR.patch b/kexec-tools-2.0.21-makedumpfile-make-use-of-uts_namespace.name-offset-in-VMCOR.patch deleted file mode 100644 index 0c29723..0000000 --- a/kexec-tools-2.0.21-makedumpfile-make-use-of-uts_namespace.name-offset-in-VMCOR.patch +++ /dev/null @@ -1,101 +0,0 @@ -From 54aec3878b3f91341e6bc735eda158cca5c54ec9 Mon Sep 17 00:00:00 2001 -From: Alexander Egorenkov -Date: Fri, 18 Sep 2020 13:55:56 +0200 -Subject: [PATCH] [PATCH] make use of 'uts_namespace.name' offset in VMCOREINFO - -* Required for kernel 5.11 - -The offset of the field 'init_uts_ns.name' has changed since -kernel commit 9a56493f6942 ("uts: Use generic ns_common::count"). -Make use of the offset 'uts_namespace.name' if available in -VMCOREINFO. - -Signed-off-by: Alexander Egorenkov ---- - makedumpfile.c | 17 +++++++++++++++-- - makedumpfile.h | 6 ++++++ - 2 files changed, 21 insertions(+), 2 deletions(-) - -diff --git a/makedumpfile.c b/makedumpfile.c -index 061741f..ecd63fa 100644 ---- a/makedumpfile-1.6.8/makedumpfile.c -+++ b/makedumpfile-1.6.8/makedumpfile.c -@@ -1159,7 +1159,10 @@ check_release(void) - if (SYMBOL(system_utsname) != NOT_FOUND_SYMBOL) { - utsname = SYMBOL(system_utsname); - } else if (SYMBOL(init_uts_ns) != NOT_FOUND_SYMBOL) { -- utsname = SYMBOL(init_uts_ns) + sizeof(int); -+ if (OFFSET(uts_namespace.name) != NOT_FOUND_STRUCTURE) -+ utsname = SYMBOL(init_uts_ns) + OFFSET(uts_namespace.name); -+ else -+ utsname = SYMBOL(init_uts_ns) + sizeof(int); - } else { - ERRMSG("Can't get the symbol of system_utsname.\n"); - return FALSE; -@@ -2040,6 +2043,11 @@ get_structure_info(void) - SIZE_INIT(cpu_spec, "cpu_spec"); - OFFSET_INIT(cpu_spec.mmu_features, "cpu_spec", "mmu_features"); - -+ /* -+ * Get offsets of the uts_namespace's members. -+ */ -+ OFFSET_INIT(uts_namespace.name, "uts_namespace", "name"); -+ - return TRUE; - } - -@@ -2109,7 +2117,10 @@ get_str_osrelease_from_vmlinux(void) - if (SYMBOL(system_utsname) != NOT_FOUND_SYMBOL) { - utsname = SYMBOL(system_utsname); - } else if (SYMBOL(init_uts_ns) != NOT_FOUND_SYMBOL) { -- utsname = SYMBOL(init_uts_ns) + sizeof(int); -+ if (OFFSET(uts_namespace.name) != NOT_FOUND_STRUCTURE) -+ utsname = SYMBOL(init_uts_ns) + OFFSET(uts_namespace.name); -+ else -+ utsname = SYMBOL(init_uts_ns) + sizeof(int); - } else { - ERRMSG("Can't get the symbol of system_utsname.\n"); - return FALSE; -@@ -2344,6 +2355,7 @@ write_vmcoreinfo_data(void) - WRITE_MEMBER_OFFSET("vmemmap_backing.list", vmemmap_backing.list); - WRITE_MEMBER_OFFSET("mmu_psize_def.shift", mmu_psize_def.shift); - WRITE_MEMBER_OFFSET("cpu_spec.mmu_features", cpu_spec.mmu_features); -+ WRITE_MEMBER_OFFSET("uts_namespace.name", uts_namespace.name); - - if (SYMBOL(node_data) != NOT_FOUND_SYMBOL) - WRITE_ARRAY_LENGTH("node_data", node_data); -@@ -2743,6 +2755,7 @@ read_vmcoreinfo(void) - READ_MEMBER_OFFSET("vmemmap_backing.list", vmemmap_backing.list); - READ_MEMBER_OFFSET("mmu_psize_def.shift", mmu_psize_def.shift); - READ_MEMBER_OFFSET("cpu_spec.mmu_features", cpu_spec.mmu_features); -+ READ_MEMBER_OFFSET("uts_namespace.name", uts_namespace.name); - - READ_STRUCTURE_SIZE("printk_log", printk_log); - READ_STRUCTURE_SIZE("printk_ringbuffer", printk_ringbuffer); -diff --git a/makedumpfile.h b/makedumpfile.h -index 47f7e79..5f50080 100644 ---- a/makedumpfile-1.6.8/makedumpfile.h -+++ b/makedumpfile-1.6.8/makedumpfile.h -@@ -1728,6 +1728,8 @@ struct size_table { - long cpu_spec; - - long pageflags; -+ -+ long uts_namespace; - }; - - struct offset_table { -@@ -1935,6 +1937,10 @@ struct offset_table { - struct cpu_spec_s { - long mmu_features; - } cpu_spec; -+ -+ struct uts_namespace_s { -+ long name; -+ } uts_namespace; - }; - - /* --- -2.29.2 - diff --git a/kexec-tools.spec b/kexec-tools.spec index 8f4dc7d..e68890d 100644 --- a/kexec-tools.spec +++ b/kexec-tools.spec @@ -1,6 +1,6 @@ %global eppic_ver d84c3541035d95077aa8571f5d5c3e07c6ef510b %global eppic_shortver %(c=%{eppic_ver}; echo ${c:0:7}) -%global mkdf_ver 1.6.8 +%global mkdf_ver 1.6.9 %global mkdf_shortver %(c=%{mkdf_ver}; echo ${c:0:7}) Name: kexec-tools @@ -101,9 +101,6 @@ Requires: systemd-udev%{?_isa} # Patches 601 onward are generic patches # Patch601: ./kexec-tools-2.0.20-eppic-Remove-duplicated-variable-declaration.patch -Patch603: ./kexec-tools-2.0.20-makedumpfile-printk-add-support-for-lockless-ringbuffer.patch -Patch604: ./kexec-tools-2.0.20-makedumpfile-printk-use-committed-finalized-state-value.patch -Patch605: ./kexec-tools-2.0.21-makedumpfile-make-use-of-uts_namespace.name-offset-in-VMCOR.patch %description kexec-tools provides /sbin/kexec binary that facilitates a new @@ -120,9 +117,6 @@ tar -z -x -v -f %{SOURCE9} tar -z -x -v -f %{SOURCE19} %patch601 -p1 -%patch603 -p1 -%patch604 -p1 -%patch605 -p1 %ifarch ppc %define archdef ARCH=ppc diff --git a/sources b/sources index d18fd62..df7a827 100644 --- a/sources +++ b/sources @@ -1,3 +1,3 @@ SHA512 (eppic-d84c354.tar.gz) = 455b3386c3e4cc546b858f1f8b0e6874072aaae708ebe072452fb5f0b6a81b1f3a315b40f94c3967f38525cadd276864a7bc7f0f12fa421655dcc3b15b70914d -SHA512 (makedumpfile-1.6.8.tar.gz) = 15e60688b06013bf86e339ec855774ea2c904d425371ea867101704ba0611c69da891eb3cc96f67eb10197d8c42d217ea28bf11bcaa93ddc2495cbf984c0b7ec +SHA512 (makedumpfile-1.6.9.tar.gz) = 9982985498ae641d390c3b87d92aecd263a502f1a4a9e96e145d86d8778b9e778e4ee98034ef4dbe12ed5586c57278917ea5f3c9ae2989ad1ac051215e03b3d9 SHA512 (kexec-tools-2.0.22.tar.xz) = 7580860f272eee5af52139809f12961e5a5d3a65f4e191183ca9c845410425d25818945ac14ed04a60e6ce474dc2656fc6a14041177b0bf703f450820c7d6aba