From 87ef78ed082f9dec4e83a6120b32617b7f7a86b9 Mon Sep 17 00:00:00 2001 From: Mystery Man Date: Thu, 24 Apr 2003 07:15:38 +0000 Subject: This commit was manufactured by cvs2svn to create tag 'V1_1_9_56mdk'. --- mdk-stage1/insmod-modutils/util/modstat.c | 419 ------------------------------ 1 file changed, 419 deletions(-) delete mode 100644 mdk-stage1/insmod-modutils/util/modstat.c (limited to 'mdk-stage1/insmod-modutils/util/modstat.c') diff --git a/mdk-stage1/insmod-modutils/util/modstat.c b/mdk-stage1/insmod-modutils/util/modstat.c deleted file mode 100644 index ad82306c0..000000000 --- a/mdk-stage1/insmod-modutils/util/modstat.c +++ /dev/null @@ -1,419 +0,0 @@ -/* - * Get kernel symbol table(s) and other relevant module info. - * - * Add module_name_list and l_module_name_list. - * Keith Owens November 1999. - * Björn Ekwall in February 1999 (C) - * Initial work contributed by Richard Henderson - * - * This file is part of the Linux modutils. - * - * 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. - * - * 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. - */ - -#include -#include -#include -#include -#include -#include -#include -#include "util.h" -#include "module.h" -#include "obj.h" -#include "modstat.h" - -struct module_stat *module_stat; -size_t n_module_stat; -char *module_name_list; -size_t l_module_name_list; -struct module_symbol *ksyms; -size_t nksyms; -int k_new_syscalls; - -static void *old_kernsym; - -/************************************************************************/ -static void drop(void) -{ - /* - * Clean the slate for multiple runs - */ - if (module_stat) { - struct module_stat *m; - int i; - - for (i = 0, m = module_stat; i < n_module_stat; ++i, ++m) { - if (m->syms) - free(m->syms); - if (m->refs) - free(m->refs); - } - free(module_stat); - module_stat = NULL; - n_module_stat = 0; - } - if (module_name_list) { - free(module_name_list); - module_name_list = NULL; - l_module_name_list = 0; - } - if (ksyms) { - free(ksyms); - ksyms = NULL; - nksyms = 0; - } - if (old_kernsym) { - free(old_kernsym); - old_kernsym = NULL; - } -} - -static int new_get_kernel_info(int type) -{ - struct module_stat *modules; - struct module_stat *m; - struct module_symbol *syms; - struct module_symbol *s; - size_t ret; - size_t bufsize; - size_t nmod; - size_t nsyms; - size_t i; - size_t j; - char *module_names; - char *mn; - - drop(); - - /* - * Collect the loaded modules - */ - module_names = xmalloc(bufsize = 256); - while (query_module(NULL, QM_MODULES, module_names, bufsize, &ret)) { - if (errno != ENOSPC) { - error("QM_MODULES: %m\n"); - return 0; - } - module_names = xrealloc(module_names, bufsize = ret); - } - module_name_list = module_names; - l_module_name_list = bufsize; - n_module_stat = nmod = ret; - module_stat = modules = xmalloc(nmod * sizeof(struct module_stat)); - memset(modules, 0, nmod * sizeof(struct module_stat)); - - /* Collect the info from the modules */ - for (i = 0, mn = module_names, m = modules; - i < nmod; - ++i, ++m, mn += strlen(mn) + 1) { - struct module_info info; - - m->name = mn; - if (query_module(mn, QM_INFO, &info, sizeof(info), &ret)) { - if (errno == ENOENT) { - /* The module was removed out from underneath us. */ - m->flags = NEW_MOD_DELETED; - continue; - } - /* else oops */ - error("module %s: QM_INFO: %m", mn); - return 0; - } - - m->addr = info.addr; - - if (type & K_INFO) { - m->size = info.size; - m->flags = info.flags; - m->usecount = info.usecount; - m->modstruct = info.addr; - } - - if (type & K_REFS) { - int mm; - char *mrefs; - char *mr; - - mrefs = xmalloc(bufsize = 64); - while (query_module(mn, QM_REFS, mrefs, bufsize, &ret)) { - if (errno != ENOSPC) { - error("QM_REFS: %m"); - return 1; - } - mrefs = xrealloc(mrefs, bufsize = ret); - } - for (j = 0, mr = mrefs; - j < ret; - ++j, mr += strlen(mr) + 1) { - for (mm = 0; mm < i; ++mm) { - if (strcmp(mr, module_stat[mm].name) == 0) { - m->nrefs += 1; - m->refs = xrealloc(m->refs, m->nrefs * sizeof(struct module_stat **)); - m->refs[m->nrefs - 1] = module_stat + mm; - break; - } - } - } - free(mrefs); - } - - if (type & K_SYMBOLS) { /* Want info about symbols */ - syms = xmalloc(bufsize = 1024); - while (query_module(mn, QM_SYMBOLS, syms, bufsize, &ret)) { - if (errno == ENOSPC) { - syms = xrealloc(syms, bufsize = ret); - continue; - } - if (errno == ENOENT) { - /* - * The module was removed out - * from underneath us. - */ - m->flags = NEW_MOD_DELETED; - free(syms); - goto next; - } else { - error("module %s: QM_SYMBOLS: %m", mn); - return 0; - } - } - nsyms = ret; - - m->nsyms = nsyms; - m->syms = syms; - - /* Convert string offsets to string pointers */ - for (j = 0, s = syms; j < nsyms; ++j, ++s) - s->name += (unsigned long) syms; - } - next: - } - - if (type & K_SYMBOLS) { /* Want info about symbols */ - /* Collect the kernel's symbols. */ - syms = xmalloc(bufsize = 16 * 1024); - while (query_module(NULL, QM_SYMBOLS, syms, bufsize, &ret)) { - if (errno != ENOSPC) { - error("kernel: QM_SYMBOLS: %m"); - return 0; - } - syms = xrealloc(syms, bufsize = ret); - } - nksyms = nsyms = ret; - ksyms = syms; - - /* Convert string offsets to string pointers */ - for (j = 0, s = syms; j < nsyms; ++j, ++s) - s->name += (unsigned long) syms; - } - - return 1; -} - -#ifdef COMPAT_2_0 -/************************************************************************/ - -#define mscan(offs,siz,ptr) \ - if (lseek(kmem_fd, (off_t)(offs), SEEK_SET) == -1 || \ - read(kmem_fd, (ptr), (siz)) != (siz)) { \ - if (kmem_fd != -1) \ - close(kmem_fd); \ - error("kmem: %m"); \ - return 0; \ - } - -#define OLD_MOD_RUNNING 1 -#define OLD_MOD_DELETED 2 -#define OLD_MOD_VISITED 0x20000000 - -/* Fetch all the symbols and divvy them up as appropriate for the modules. */ -static int old_get_kernel_info(int type) -{ - struct old_kernel_sym *kernsym; - struct old_kernel_sym *k; - struct module_stat *module; - struct module_stat *mod; - struct module_symbol *s = NULL; - int kmem_fd = -1; - int nkernsym; - int nmod; - int nm; - int nms; - int i; - - drop(); - module_name_list = xmalloc(1); - *module_name_list = '\0'; - - if ((nkernsym = get_kernel_syms(NULL)) < 0) { - error("get_kernel_syms: %m"); - return 0; - } - kernsym = k = xmalloc(nkernsym * sizeof(struct old_kernel_sym)); - old_kernsym = kernsym; - if (get_kernel_syms(kernsym) != nkernsym) { - error("inconsistency with get_kernel_syms -- is someone else " - "playing with modules?"); - free(kernsym); - return 0; - } - - /* Number of modules */ - for (k = kernsym, nmod = 0, i = 0; i < nkernsym; ++i, ++k) { - if (k->name[0] == '#') { - if (k->name[1]) { - ++nmod; - i = strlen(k->name+1) + 1; - module_name_list = - xrealloc(module_name_list, - l_module_name_list + i); - strcpy(module_name_list+l_module_name_list, /* safe, xrealloc */ - k->name+1); - l_module_name_list += i; /* NUL separated strings */ - } - else - break; - } - } - module_stat = mod = module = xmalloc(nmod * sizeof(struct module_stat)); - memset(module, 0, nmod * sizeof(struct module_stat)); - n_module_stat = nmod; - - /* - * Will we need kernel internal info? - */ - if ((type & K_INFO) || (type & K_REFS)) { - if ((kmem_fd = open("/dev/kmem", O_RDONLY)) < 0) { - perror("ksyms: open /dev/kmem"); - return 0; - } - } - - /* - * Collect the module information. - */ - for (k = kernsym, nm = 0, i = 0; i < nkernsym; ++i, ++k) { - if (k->name[0] == '#') { - struct old_kernel_sym *p; - struct old_module info; - - if (k->name[1] == '\0') - break; /* kernel resident symbols follow */ - /* else normal module */ - - module = mod++; - ++nm; - module->name = k->name + 1; - module->modstruct = k->value; - - if ((type & K_INFO) || (type & K_REFS)) { - long tmp; - /* - * k->value is the address of the - * struct old_module - * in the kernel (for use via /dev/kmem) - */ - mscan(k->value, sizeof(info), &info); - module->addr = info.addr; - module->size = info.size * getpagesize(); - - mscan(info.addr, sizeof(long), &tmp); - module->flags = info.state & - (OLD_MOD_RUNNING | OLD_MOD_DELETED); - module->flags |= NEW_MOD_USED_ONCE; /* Cheat */ - if (tmp & OLD_MOD_AUTOCLEAN) - module->flags |= NEW_MOD_AUTOCLEAN; - if (tmp & OLD_MOD_VISITED) - module->flags |= NEW_MOD_VISITED; - - module->usecount = tmp & ~(OLD_MOD_AUTOCLEAN | OLD_MOD_VISITED); - } - - if ((type & K_REFS) && info.ref) { - struct old_module_ref mr; - int j; - unsigned long ref = info.ref; - - do { - mscan(ref, sizeof(struct old_module_ref), &mr); - for (j = 0; j < nm -1; ++j) { - if (mr.module == module_stat[j].modstruct) { - module->nrefs += 1; - module->refs = xrealloc(module->refs, module->nrefs * sizeof(struct module_stat **)); - module->refs[module->nrefs - 1] = module_stat + j; - break; - } - } - } while ((ref = mr.next) != 0); - } - - if (!(type & K_SYMBOLS)) - continue; - /* - * Find out how many symbols this module has. - */ - for (nms = 0, p = k+1; p->name[0] != '#'; ++p) - ++nms; - s = xmalloc(nms * sizeof(struct module_symbol)); - module->syms = s; - module->nsyms = nms; - } else if (type & K_SYMBOLS) { /* Want info about symbols */ - s->name = (unsigned long) k->name; - s->value = k->value; - ++s; - } - } - if ((type & K_INFO) || (type & K_REFS)) { - if (kmem_fd != -1) - close(kmem_fd); - } - - /* - * Kernel resident symbols follows - */ - if (type & K_SYMBOLS) { /* Want info about symbols */ - if (k->name[0] == '#') - ++k; - nksyms = nkernsym - (k - kernsym); - if (nksyms) { - ksyms = s = xmalloc(nksyms * sizeof(struct module_symbol)); - for (i = 0; i < nksyms; ++i, ++k) { - if (k->name[0] != '#') { - s->name = (unsigned long) k->name; - s->value = k->value; - ++s; - } - } - nksyms = s - ksyms; - } else - ksyms = NULL; - } - - return 1; -} -#endif /* COMPAT_2_0 */ - -int get_kernel_info(int type) -{ - k_new_syscalls = !query_module(NULL, 0, NULL, 0, NULL); - -#ifdef COMPAT_2_0 - if (!k_new_syscalls) - return old_get_kernel_info(type); -#endif /* COMPAT_2_0 */ - - return new_get_kernel_info(type); -} -- cgit v1.2.1