[Crash-utility] [RFC PATCH 01/15] Add support for struct module_memory on Linux 6.4 and later

Supported: - startup without "--no_modules" - "mod" command (without options) Signed-off-by: Kazuhito Hagio <k-hagio-ab(a)nec.com&gt; --- defs.h | 36 ++++ kernel.c | 26 ++- symbols.c | 482 ++++++++++++++++++++++++++++++++++++++++++++++++++++-- 3 files changed, 527 insertions(+), 17 deletions(-) diff --git a/defs.h b/defs.h index 12ad6aaa0998..655cd2add163 100644 --- a/defs.h +++ b/defs.h @@ -675,6 +675,7 @@ struct new_utsname { #define IRQ_DESC_TREE_RADIX (0x40ULL) #define IRQ_DESC_TREE_XARRAY (0x80ULL) #define KMOD_PAX (0x100ULL) +#define KMOD_MEMORY (0x200ULL) #define XEN() (kt->flags & ARCH_XEN) #define OPENVZ() (kt->flags & ARCH_OPENVZ) @@ -682,6 +683,7 @@ struct new_utsname { #define PVOPS_XEN() (kt->flags & ARCH_PVOPS_XEN) #define PAX_MODULE_SPLIT() (kt->flags2 & KMOD_PAX) +#define MODULE_MEMORY() (kt->flags2 & KMOD_MEMORY) #define XEN_MACHINE_TO_MFN(m) ((ulonglong)(m) >> PAGESHIFT()) #define XEN_PFN_TO_PSEUDO(p) ((ulonglong)(p) << PAGESHIFT()) @@ -2216,6 +2218,9 @@ struct offset_table { /* stash of commonly-used offsets */ long in6_addr_in6_u; long kset_kobj; long subsys_private_subsys; + long module_mem; + long module_memory_base; + long module_memory_size; }; struct size_table { /* stash of commonly-used sizes */ @@ -2389,6 +2394,7 @@ struct size_table { /* stash of commonly-used sizes */ long percpu_counter; long maple_tree; long maple_node; + long module_memory; }; struct array_table { @@ -2921,6 +2927,25 @@ struct mod_section_data { int flags; }; +/* This is unlikely to change, so imported from kernel for now. */ +enum mod_mem_type { + MOD_TEXT = 0, + MOD_DATA, + MOD_RODATA, + MOD_RO_AFTER_INIT, + MOD_INIT_TEXT, + MOD_INIT_DATA, + MOD_INIT_RODATA, + + MOD_MEM_NUM_TYPES, + MOD_INVALID = -1, +}; + +struct module_memory { + ulong base; + uint size; +}; + struct load_module { ulong mod_base; ulong module_struct; @@ -2954,13 +2979,23 @@ struct load_module { ulong mod_percpu; ulong mod_percpu_size; struct objfile *loaded_objfile; + + /* For 6.4 module_memory */ + struct module_memory mem[MOD_MEM_NUM_TYPES]; + struct syment *symtable[MOD_MEM_NUM_TYPES]; + struct syment *symend[MOD_MEM_NUM_TYPES]; }; +#define IN_MODULE(A,L) (_in_module(A, L, MOD_TEXT)) +#define IN_MODULE_INIT(A,L) (_in_module(A, L, MOD_INIT_TEXT)) + +/* #define IN_MODULE(A,L) \ (((ulong)(A) >= (L)->mod_base) && ((ulong)(A) < ((L)->mod_base+(L)->mod_size))) #define IN_MODULE_INIT(A,L) \ (((ulong)(A) >= (L)->mod_init_module_ptr) && ((ulong)(A) < ((L)->mod_init_module_ptr+(L)->mod_init_size))) +*/ #define IN_MODULE_PERCPU(A,L) \ (((ulong)(A) >= (L)->mod_percpu) && ((ulong)(A) < ((L)->mod_percpu+(L)->mod_percpu_size))) @@ -5581,6 +5616,7 @@ void dump_struct_member(char *, ulong, unsigned); void dump_union(char *, ulong, unsigned); void store_module_symbols_v1(ulong, int); void store_module_symbols_v2(ulong, int); +void store_module_symbols_v3(ulong, int); int is_datatype_command(void); int is_typedef(char *); int arg_to_datatype(char *, struct datatype_member *, ulong); diff --git a/kernel.c b/kernel.c index 6e98f5f6f6b1..62afff25bca8 100644 --- a/kernel.c +++ b/kernel.c @@ -3571,7 +3571,18 @@ module_init(void) MEMBER_OFFSET_INIT(module_num_gpl_syms, "module", "num_gpl_syms"); - if (MEMBER_EXISTS("module", "module_core")) { + if (MEMBER_EXISTS("module", "mem")) { /* 6.4 and later */ + kt->flags2 |= KMOD_MEMORY; /* MODULE_MEMORY() can be used. */ + + MEMBER_OFFSET_INIT(module_mem, "module", "mem"); + MEMBER_OFFSET_INIT(module_memory_base, "module_memory", "base"); + MEMBER_OFFSET_INIT(module_memory_size, "module_memory", "size"); + STRUCT_SIZE_INIT(module_memory, "module_memory"); + + if (get_array_length("module.mem", NULL, 0) != MOD_MEM_NUM_TYPES) + error(WARNING, "module memory types have changed!\n"); + + } else if (MEMBER_EXISTS("module", "module_core")) { MEMBER_OFFSET_INIT(module_core_size, "module", "core_size"); MEMBER_OFFSET_INIT(module_init_size, "module", @@ -3757,6 +3768,8 @@ module_init(void) total += nsyms; total += 2; /* store the module's start/ending addresses */ total += 2; /* and the init start/ending addresses */ + if (MODULE_MEMORY()) /* 7 regions at most -> 14 */ + total += 10; /* * If the module has kallsyms, set up to grab them as well. @@ -3784,7 +3797,11 @@ module_init(void) case KALLSYMS_V2: if (THIS_KERNEL_VERSION >= LINUX(2,6,27)) { numksyms = UINT(modbuf + OFFSET(module_num_symtab)); - size = UINT(modbuf + MODULE_OFFSET2(module_core_size, rx)); + if (MODULE_MEMORY()) + /* check mem[MOD_TEXT].size only */ + size = UINT(modbuf + OFFSET(module_mem) + OFFSET(module_memory_size)); + else + size = UINT(modbuf + MODULE_OFFSET2(module_core_size, rx)); } else { numksyms = ULONG(modbuf + OFFSET(module_num_symtab)); size = ULONG(modbuf + MODULE_OFFSET2(module_core_size, rx)); @@ -3822,7 +3839,10 @@ module_init(void) store_module_symbols_v1(total, kt->mods_installed); break; case KMOD_V2: - store_module_symbols_v2(total, kt->mods_installed); + if (MODULE_MEMORY()) + store_module_symbols_v3(total, kt->mods_installed); + else + store_module_symbols_v2(total, kt->mods_installed); break; } diff --git a/symbols.c b/symbols.c index f0721023816d..88849833bada 100644 --- a/symbols.c +++ b/symbols.c @@ -103,6 +103,8 @@ static void free_structure(struct struct_elem *); static unsigned char is_right_brace(const char *); static struct struct_elem *find_node(struct struct_elem *, char *); static void dump_node(struct struct_elem *, char *, unsigned char, unsigned char); +static int _in_module(ulong, struct load_module *, int); +static ulong module_mem_end(ulong, struct load_module *); /* @@ -1788,6 +1790,387 @@ modsym_value(ulong syms, union kernel_symbol *modsym, int i) return 0; } +static const char *module_start_tags[] = { + "_MODULE_TEXT_START_", + "_MODULE_DATA_START_", + "_MODULE_RODATA_START_", + "_MODULE_RO_AFTER_INIT_START_", + "_MODULE_INIT_TEXT_START_", + "_MODULE_INIT_DATA_START_", + "_MODULE_INIT_RODATA_START_" +}; +static const char *module_end_tags[] = { + "_MODULE_TEXT_END_", + "_MODULE_DATA_END_", + "_MODULE_RODATA_END_", + "_MODULE_RO_AFTER_INIT_END_", + "_MODULE_INIT_TEXT_END_", + "_MODULE_INIT_DATA_END_", + "_MODULE_INIT_RODATA_END_" +}; + +/* + * Linux 6.4 introduced module.mem memory layout + */ +void +store_module_symbols_v3(ulong total, int mods_installed) +{ + int i, m; + ulong mod, mod_next; + char *mod_name; + uint nsyms, ngplsyms; + ulong syms, gpl_syms; + ulong nksyms; + long strbuflen; + ulong size; + int mcnt, lm_mcnt; + union kernel_symbol *modsym; + size_t kernel_symbol_size; + struct load_module *lm; + char buf1[BUFSIZE]; + char buf2[BUFSIZE]; + char *strbuf, *modbuf, *modsymbuf; + struct syment *sp; + ulong first, last; + + st->mods_installed = mods_installed; + + if (!st->mods_installed) { + st->flags &= ~MODULE_SYMS; + return; + } + + /* + * If we've been here before, free up everything and start over. + */ + if (st->flags & MODULE_SYMS) + error(FATAL, "re-initialization of module symbols not implemented yet!\n"); + + kernel_symbol_size = kernel_symbol_type_init(); + + if ((st->ext_module_symtable = (struct syment *) + calloc(total, sizeof(struct syment))) == NULL) + error(FATAL, "v2 module syment space malloc (%ld symbols): %s\n", + total, strerror(errno)); + + if (!namespace_ctl(NAMESPACE_INIT, &st->ext_module_namespace, + (void *)total, NULL)) + error(FATAL, "module namespace malloc: %s\n", strerror(errno)); + + if ((st->load_modules = (struct load_module *)calloc + (st->mods_installed, sizeof(struct load_module))) == NULL) + error(FATAL, "load_module array malloc: %s\n", strerror(errno)); + + modbuf = GETBUF(SIZE(module)); + modsymbuf = NULL; + m = mcnt = mod_next = 0; + + for (mod = kt->module_list; mod != kt->kernel_module; mod = mod_next) { + + readmem(mod, KVADDR, modbuf, SIZE(module), + "module buffer", FAULT_ON_ERROR); + + syms = ULONG(modbuf + OFFSET(module_syms)); + gpl_syms = ULONG(modbuf + OFFSET(module_gpl_syms)); + nsyms = UINT(modbuf + OFFSET(module_num_syms)); + ngplsyms = UINT(modbuf + OFFSET(module_num_gpl_syms)); + + nksyms = UINT(modbuf + OFFSET(module_num_symtab)); + + mod_name = modbuf + OFFSET(module_name); + + lm = &st->load_modules[m++]; + BZERO(lm, sizeof(struct load_module)); + + size = 0; + for (i = MOD_TEXT; i < MOD_MEM_NUM_TYPES; i++) { + lm->mem[i].base = ULONG(modbuf + OFFSET(module_mem) + + SIZE(module_memory) * i + OFFSET(module_memory_base)); + lm->mem[i].size = UINT(modbuf + OFFSET(module_mem) + + SIZE(module_memory) * i + OFFSET(module_memory_size)); + if (i < MOD_INIT_TEXT) + size += lm->mem[i].size; + } + /* mem[MOD_TEXT].base for now */ + lm->mod_base = lm->mem[MOD_TEXT].base; + /* The entire module size */ + lm->mod_size = size; + lm->module_struct = mod; + + if (strlen(mod_name) < MAX_MOD_NAME) + strcpy(lm->mod_name, mod_name); + else { + error(INFO, "module name greater than MAX_MOD_NAME: %s\n", mod_name); + strncpy(lm->mod_name, mod_name, MAX_MOD_NAME-1); + } + if (CRASHDEBUG(3)) + fprintf(fp, "%lx (%lx): %s syms: %d gplsyms: %d ksyms: %ld\n", + mod, lm->mod_base, lm->mod_name, nsyms, ngplsyms, nksyms); + + lm->mod_flags = MOD_EXT_SYMS; + lm->mod_ext_symcnt = mcnt; + + lm->mod_text_start = lm->mod_base; + lm->mod_etext_guess = lm->mod_base + lm->mem[MOD_TEXT].size; + + lm->mod_init_module_ptr = lm->mem[MOD_INIT_TEXT].base; + lm->mod_init_size = lm->mem[MOD_INIT_TEXT].size; /* tentative.. */ + lm->mod_init_text_size = lm->mem[MOD_INIT_TEXT].size; + + if (VALID_MEMBER(module_percpu)) + lm->mod_percpu = ULONG(modbuf + OFFSET(module_percpu)); + + lm_mcnt = mcnt; + for (i = MOD_TEXT; i < MOD_MEM_NUM_TYPES; i++) { + if (!lm->mem[i].base) + continue; + + st->ext_module_symtable[mcnt].value = lm->mem[i].base; + st->ext_module_symtable[mcnt].type = 'm'; + st->ext_module_symtable[mcnt].flags |= MODULE_SYMBOL; + sprintf(buf2, "%s%s", module_start_tags[i], mod_name); + namespace_ctl(NAMESPACE_INSTALL, &st->ext_module_namespace, + &st->ext_module_symtable[mcnt], buf2); + lm_mcnt = mcnt; + mcnt++; + + if (i >= MOD_INIT_TEXT) + lm->mod_flags |= MOD_INIT; + } + + if (nsyms && !IN_MODULE(syms, lm)) { + error(WARNING, + "[%s] module.syms outside of module " "address space (%lx)\n\n", + lm->mod_name, syms); + nsyms = 0; + } + + if (nsyms) { + modsymbuf = GETBUF(kernel_symbol_size*nsyms); + readmem((ulong)syms, KVADDR, modsymbuf, + nsyms * kernel_symbol_size, + "module symbols", FAULT_ON_ERROR); + } + + for (i = first = last = 0; i < nsyms; i++) { + modsym = (union kernel_symbol *) + (modsymbuf + (i * kernel_symbol_size)); + if (!first + || first > modsym_name(syms, modsym, i)) + first = modsym_name(syms, modsym, i); + if (modsym_name(syms, modsym, i) > last) + last = modsym_name(syms, modsym, i); + } + + if (last > first) { + /* The buffer should not go over the block. */ + ulong end = module_mem_end(first, lm); + + strbuflen = (last-first) + BUFSIZE; + if ((first + strbuflen) >= end) { + strbuflen = end - first; + + } + strbuf = GETBUF(strbuflen); + + if (!readmem(first, KVADDR, strbuf, strbuflen, + "module symbol strings", RETURN_ON_ERROR)) { + FREEBUF(strbuf); + strbuf = NULL; + } + } else + strbuf = NULL; + + + for (i = 0; i < nsyms; i++) { + modsym = (union kernel_symbol *)(modsymbuf + (i * kernel_symbol_size)); + + BZERO(buf1, BUFSIZE); + + if (strbuf) + strcpy(buf1, &strbuf[modsym_name(syms, modsym, i) - first]); + else + read_string(modsym_name(syms, modsym, i), buf1, BUFSIZE-1); + + if (strlen(buf1)) { + st->ext_module_symtable[mcnt].value = + modsym_value(syms, modsym, i); + st->ext_module_symtable[mcnt].type = '?'; + st->ext_module_symtable[mcnt].flags |= MODULE_SYMBOL; + strip_module_symbol_end(buf1); + strip_symbol_end(buf1, NULL); + namespace_ctl(NAMESPACE_INSTALL, + &st->ext_module_namespace, + &st->ext_module_symtable[mcnt], buf1); + + mcnt++; + } + } + + if (modsymbuf) { + FREEBUF(modsymbuf); + modsymbuf = NULL; + } + + if (strbuf) + FREEBUF(strbuf); + + if (ngplsyms) { + modsymbuf = GETBUF(kernel_symbol_size * ngplsyms); + readmem((ulong)gpl_syms, KVADDR, modsymbuf, + ngplsyms * kernel_symbol_size, + "module gpl symbols", FAULT_ON_ERROR); + } + + for (i = first = last = 0; i < ngplsyms; i++) { + modsym = (union kernel_symbol *) + (modsymbuf + (i * kernel_symbol_size)); + if (!first + || first > modsym_name(gpl_syms, modsym, i)) + first = modsym_name(gpl_syms, modsym, i); + if (modsym_name(gpl_syms, modsym, i) > last) + last = modsym_name(gpl_syms, modsym, i); + } + + if (last > first) { + ulong end = module_mem_end(first, lm); + + strbuflen = (last-first) + BUFSIZE; + if ((first + strbuflen) >= end) { + strbuflen = end - first; + + } + strbuf = GETBUF(strbuflen); + + if (!readmem(first, KVADDR, strbuf, strbuflen, + "module gpl symbol strings", RETURN_ON_ERROR)) { + FREEBUF(strbuf); + strbuf = NULL; + } + } else + strbuf = NULL; + + for (i = 0; i < ngplsyms; i++) { + modsym = (union kernel_symbol *) (modsymbuf + (i * kernel_symbol_size)); + + BZERO(buf1, BUFSIZE); + + if (strbuf) + strcpy(buf1, &strbuf[modsym_name(gpl_syms, modsym, i) - first]); + else + read_string(modsym_name(gpl_syms, modsym, i), buf1, BUFSIZE-1); + + if (strlen(buf1)) { + st->ext_module_symtable[mcnt].value = + modsym_value(gpl_syms, modsym, i); + st->ext_module_symtable[mcnt].type = '?'; + st->ext_module_symtable[mcnt].flags |= MODULE_SYMBOL; + strip_module_symbol_end(buf1); + strip_symbol_end(buf1, NULL); + namespace_ctl(NAMESPACE_INSTALL, + &st->ext_module_namespace, + &st->ext_module_symtable[mcnt], buf1); + + mcnt++; + } + } + + if (modsymbuf) { + FREEBUF(modsymbuf); + modsymbuf = NULL; + } + + if (strbuf) + FREEBUF(strbuf); + + /* + * If the module was compiled with kallsyms, add them in. + */ + switch (kt->flags & (KALLSYMS_V1|KALLSYMS_V2)) + { + case KALLSYMS_V1: /* impossible, I hope... */ + mcnt += store_module_kallsyms_v1(lm, lm_mcnt, mcnt, modbuf); + break; + case KALLSYMS_V2: + mcnt += store_module_kallsyms_v2(lm, lm_mcnt, mcnt, modbuf); + break; + } + + for (i = MOD_TEXT; i < MOD_MEM_NUM_TYPES; i++) { + if (!lm->mem[i].base) + continue; + + st->ext_module_symtable[mcnt].value = lm->mem[i].base + lm->mem[i].size; + st->ext_module_symtable[mcnt].type = 'm'; + st->ext_module_symtable[mcnt].flags |= MODULE_SYMBOL; + sprintf(buf2, "%s%s", module_end_tags[i], mod_name); + namespace_ctl(NAMESPACE_INSTALL, + &st->ext_module_namespace, + &st->ext_module_symtable[mcnt], buf2); + mcnt++; + } + + lm->mod_ext_symcnt = mcnt - lm->mod_ext_symcnt; + + if (!lm->mod_etext_guess) + find_mod_etext(lm); + + NEXT_MODULE(mod_next, modbuf); + } + + FREEBUF(modbuf); + + st->ext_module_symcnt = mcnt; + st->ext_module_symend = &st->ext_module_symtable[mcnt]; + + namespace_ctl(NAMESPACE_COMPLETE, &st->ext_module_namespace, + st->ext_module_symtable, st->ext_module_symend); + + qsort(st->ext_module_symtable, mcnt, sizeof(struct syment), + compare_syms); + + /* not sure whether this sort is meaningful anymore. */ + qsort(st->load_modules, m, sizeof(struct load_module), compare_mods); + + for (m = 0; m < st->mods_installed; m++) { + lm = &st->load_modules[m]; + + /* TODO: make more efficient */ + for (i = MOD_TEXT; i < MOD_MEM_NUM_TYPES; i++) { + if (!lm->mem[i].base) + continue; + + sprintf(buf1, "%s%s", module_start_tags[i], lm->mod_name); + sprintf(buf2, "%s%s", module_end_tags[i], lm->mod_name); + + for (sp = st->ext_module_symtable; sp < st->ext_module_symend; sp++) { + if (STREQ(sp->name, buf1)) { + lm->symtable[i] = sp; + break; + } + } + for ( ; sp < st->ext_module_symend; sp++) { + if (STREQ(sp->name, buf2)) { + lm->symend[i] = sp; + break; + } + } + + if (lm->symtable[i] && lm->symend[i]) + mod_symtable_hash_install_range(lm->symtable[i], lm->symend[i]); + } + } + + st->flags |= MODULE_SYMS; + + /* probably not needed anymore */ + if (symbol_query("__insmod_", NULL, NULL)) + st->flags |= INSMOD_BUILTIN; + + if (mcnt > total) + error(FATAL, "store_module_symbols_v3: total: %ld mcnt: %d\n", total, mcnt); +} + void store_module_symbols_v2(ulong total, int mods_installed) { @@ -2384,6 +2767,7 @@ store_module_kallsyms_v2(struct load_module *lm, int start, int curr, int mcnt; int mcnt_idx; char *module_buf_init = NULL; + ulong base, base_init, size, size_init; if (!(kt->flags & KALLSYMS_V2)) return 0; @@ -2394,9 +2778,22 @@ store_module_kallsyms_v2(struct load_module *lm, int start, int curr, ns = &st->ext_module_namespace; ec = &elf_common; - module_buf = GETBUF(lm->mod_size); + /* kallsyms data looks to be in MOD_DATA region. */ + if (MODULE_MEMORY()) { + base = lm->mem[MOD_DATA].base; + size = lm->mem[MOD_DATA].size; + base_init = lm->mem[MOD_INIT_DATA].base; + size_init = lm->mem[MOD_INIT_DATA].size; + } else { + base = lm->mod_base; + size = lm->mod_size; + base_init = lm->mod_init_module_ptr; + size_init = lm->mod_init_size; + } + + module_buf = GETBUF(size); - if (!readmem(lm->mod_base, KVADDR, module_buf, lm->mod_size, + if (!readmem(base, KVADDR, module_buf, size, "module (kallsyms)", RETURN_ON_ERROR|QUIET)) { error(WARNING,"cannot access module kallsyms\n"); FREEBUF(module_buf); @@ -2404,10 +2801,10 @@ store_module_kallsyms_v2(struct load_module *lm, int start, int curr, } if (lm->mod_init_size > 0) { - module_buf_init = GETBUF(lm->mod_init_size); + module_buf_init = GETBUF(size_init); - if (!readmem(lm->mod_init_module_ptr, KVADDR, module_buf_init, lm->mod_init_size, - "module init (kallsyms)", RETURN_ON_ERROR|QUIET)) { + if (!readmem(base_init, KVADDR, module_buf_init, size_init, + "module init (kallsyms)", RETURN_ON_ERROR|QUIET)) { error(WARNING,"cannot access module init kallsyms\n"); FREEBUF(module_buf_init); } @@ -2429,9 +2826,9 @@ store_module_kallsyms_v2(struct load_module *lm, int start, int curr, return 0; } if (IN_MODULE(ksymtab, lm)) - locsymtab = module_buf + (ksymtab - lm->mod_base); + locsymtab = module_buf + (ksymtab - base); else - locsymtab = module_buf_init + (ksymtab - lm->mod_init_module_ptr); + locsymtab = module_buf_init + (ksymtab - base_init); kstrtab = ULONG(modbuf + OFFSET(module_strtab)); if (!IN_MODULE(kstrtab, lm) && !IN_MODULE_INIT(kstrtab, lm)) { @@ -2444,9 +2841,9 @@ store_module_kallsyms_v2(struct load_module *lm, int start, int curr, return 0; } if (IN_MODULE(kstrtab, lm)) - locstrtab = module_buf + (kstrtab - lm->mod_base); + locstrtab = module_buf + (kstrtab - base); else - locstrtab = module_buf_init + (kstrtab - lm->mod_init_module_ptr); + locstrtab = module_buf_init + (kstrtab - base_init); for (i = 1; i < nksyms; i++) { /* ELF starts real symbols at 1 */ switch (BITS()) @@ -2461,11 +2858,8 @@ store_module_kallsyms_v2(struct load_module *lm, int start, int curr, break; } - if (((ec->st_value < lm->mod_base) || - (ec->st_value > (lm->mod_base + lm->mod_size))) && - ((ec->st_value < lm->mod_init_module_ptr) || - (ec->st_value > (lm->mod_init_module_ptr + lm->mod_init_size)))) - continue; + if (!IN_MODULE(ec->st_value, lm) && !IN_MODULE_INIT(ec->st_value, lm)) + continue; if (ec->st_shndx == SHN_UNDEF) continue; @@ -3531,6 +3925,13 @@ dump_symbol_table(void) (ulong)lm->mod_section_data, lm->mod_section_data ? "" : "(not allocated)"); + if (MODULE_MEMORY()) { + int j; + for (j = MOD_TEXT; j < MOD_MEM_NUM_TYPES; j++) { + fprintf(fp, " mem[%d]: %lx (%x)\n", + j, lm->mem[j].base, lm->mem[j].size); + } + } for (s = 0; s < lm->mod_sections; s++) { fprintf(fp, @@ -9228,6 +9629,9 @@ dump_offset_table(char *spec, ulong makestruct) OFFSET(module_strtab)); fprintf(fp, " module_percpu: %ld\n", OFFSET(module_percpu)); + fprintf(fp, " module_mem: %ld\n", OFFSET(module_mem)); + fprintf(fp, " module_memory_base: %ld\n", OFFSET(module_memory_base)); + fprintf(fp, " module_memory_size: %ld\n", OFFSET(module_memory_size)); fprintf(fp, " module_sect_attrs: %ld\n", OFFSET(module_sect_attrs)); @@ -10851,6 +11255,7 @@ dump_offset_table(char *spec, ulong makestruct) SIZE(super_block)); fprintf(fp, " irqdesc: %ld\n", SIZE(irqdesc)); fprintf(fp, " module: %ld\n", SIZE(module)); + fprintf(fp, " module_memory: %ld\n", SIZE(module_memory)); fprintf(fp, " module_sect_attr: %ld\n", SIZE(module_sect_attr)); fprintf(fp, " list_head: %ld\n", SIZE(list_head)); fprintf(fp, " hlist_head: %ld\n", SIZE(hlist_head)); @@ -13520,3 +13925,52 @@ symbol_complete_match(const char *match, struct syment *sp_last) return NULL; } + +static int +_in_module(ulong addr, struct load_module *lm, int type) +{ + ulong base, size; + int i, last; + + if (MODULE_MEMORY()) { + if (type == MOD_TEXT) + last = MOD_RO_AFTER_INIT; + else + last = MOD_INIT_RODATA; + for (i = type ; i <= last; i++) { + base = lm->mem[i].base; + size = lm->mem[i].size; + if (!base) + continue; + if ((addr >= base) && (addr < (base + size))) + return TRUE; + } + return FALSE; + } + + if (type == MOD_TEXT) { + base = lm->mod_base; + size = lm->mod_size; + } else { + base = lm->mod_init_module_ptr; + size = lm->mod_init_size; + } + return ((addr >= base) && (addr < (base + size))); +} + +/* Returns the end address of the module memory region. */ +static ulong +module_mem_end(ulong addr, struct load_module *lm) +{ + ulong base, end; + int i; + for (i = MOD_TEXT; i < MOD_MEM_NUM_TYPES; i++) { + base = lm->mem[i].base; + if (!base) + continue; + end = base + lm->mem[i].size; + if ((addr >= base) && (addr < end)) + return end; + } + return 0; +} -- 2.31.1