diff options
Diffstat (limited to 'modutils/insmod.c')
| -rw-r--r-- | modutils/insmod.c | 35 |
1 files changed, 23 insertions, 12 deletions
diff --git a/modutils/insmod.c b/modutils/insmod.c index c6642a052..4dd14c6bc 100644 --- a/modutils/insmod.c +++ b/modutils/insmod.c @@ -1,6 +1,7 @@ /* vi: set sw=4 ts=4: */ /* * Mini insmod implementation for busybox + * This version of insmod now supports x86, ARM, SH3/4, powerpc, and MIPS. * * Copyright (C) 1999,2000,2001 by Lineo, inc. * Written by Erik Andersen <andersen@lineo.com> @@ -123,7 +124,7 @@ #ifndef MODUTILS_MODULE_H static const int MODUTILS_MODULE_H = 1; -#ident "$Id: insmod.c,v 1.58 2001/04/24 21:41:41 andersen Exp $" +#ident "$Id: insmod.c,v 1.59 2001/04/25 17:22:32 andersen Exp $" /* This file contains the structures used by the 2.0 and 2.1 kernels. We do not use the kernel headers directly because we do not wish @@ -329,7 +330,7 @@ int delete_module(const char *); #ifndef MODUTILS_OBJ_H static const int MODUTILS_OBJ_H = 1; -#ident "$Id: insmod.c,v 1.58 2001/04/24 21:41:41 andersen Exp $" +#ident "$Id: insmod.c,v 1.59 2001/04/25 17:22:32 andersen Exp $" /* The relocatable object is manipulated using elfin types. */ @@ -1787,7 +1788,10 @@ static int old_get_kernel_symbols(const char *m_name) nks = get_kernel_syms(NULL); if (nks <= 0) { - perror_msg("get_kernel_syms: %s", m_name); + if (nks) + perror_msg("get_kernel_syms: %s", m_name); + else + error_msg("No kernel symbols"); return 0; } @@ -1807,7 +1811,6 @@ static int old_get_kernel_symbols(const char *m_name) while (k->name[0] == '#' && k->name[1]) { struct old_kernel_sym *k2; - struct new_module_symbol *s; /* Find out how many symbols this module has. */ for (k2 = k + 1; k2->name[0] != '#'; ++k2) @@ -2277,7 +2280,7 @@ static int new_get_kernel_symbols(void) module_names = xmalloc(bufsize = 256); retry_modules_load: if (query_module(NULL, QM_MODULES, module_names, bufsize, &ret)) { - if (errno == ENOSPC) { + if (errno == ENOSPC && bufsize < ret) { module_names = xrealloc(module_names, bufsize = ret); goto retry_modules_load; } @@ -2338,7 +2341,7 @@ static int new_get_kernel_symbols(void) syms = xmalloc(bufsize = 16 * 1024); retry_kern_sym_load: if (query_module(NULL, QM_SYMBOLS, syms, bufsize, &ret)) { - if (errno == ENOSPC) { + if (errno == ENOSPC && bufsize < ret) { syms = xrealloc(syms, bufsize = ret); goto retry_kern_sym_load; } @@ -3022,6 +3025,12 @@ struct obj_file *obj_load(FILE * fp) for (i = 0; i < shnum; ++i) { struct obj_section *sec = f->sections[i]; + /* .modinfo should be contents only but gcc has no attribute for that. + * The kernel may have marked .modinfo as ALLOC, ignore this bit. + */ + if (strcmp(sec->name, ".modinfo") == 0) + sec->header.sh_flags &= ~SHF_ALLOC; + if (sec->header.sh_flags & SHF_ALLOC) obj_insert_section_load_order(f, sec); @@ -3045,22 +3054,20 @@ struct obj_file *obj_load(FILE * fp) /* Allocate space for a table of local symbols. */ j = f->local_symtab_size = sec->header.sh_info; - f->local_symtab = xmalloc(j *= - sizeof(struct obj_symbol *)); - memset(f->local_symtab, 0, j); + f->local_symtab = xcalloc(j, sizeof(struct obj_symbol *)); /* Insert all symbols into the hash table. */ for (j = 1, ++sym; j < nsym; ++j, ++sym) { const char *name; if (sym->st_name) name = strtab + sym->st_name; - else + else name = f->sections[sym->st_shndx]->name; obj_add_symbol(f, name, j, sym->st_info, sym->st_shndx, sym->st_value, sym->st_size); - } - } + } + } break; case SHT_RELM: @@ -3071,6 +3078,10 @@ struct obj_file *obj_load(FILE * fp) return NULL; } break; + /* XXX Relocation code from modutils-2.3.19 is not here. + * Why? That's about 20 lines of code from obj/obj_load.c, + * which gets done in a second pass through the sections. + * This BusyBox insmod does similar work in obj_relocate(). */ } } |