* Restructured (and partly rewritten) by:
* Björn Ekwall <bj0rn@blox.se> February 1999
*
- * 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
- *
+ * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
*/
#include <stdlib.h>
#define ARCHDATAM "__dbe_table"
#endif
+/* Nios II */
+#if defined(__nios2__)
+#define MATCH_MACHINE(x) (x == EM_ALTERA_NIOS2)
+#define SHT_RELM SHT_RELA
+#define Elf32_RelM Elf32_Rela
+#define ELFCLASSM ELFCLASS32
+#endif
+
/* PowerPC */
#if defined(__powerpc64__)
#define MATCH_MACHINE(x) (x == EM_PPC64)
#define CONFIG_USE_SINGLE
/* the SH changes have only been tested in =little endian= mode */
/* I'm not sure about big endian, so let's warn: */
-#if defined(__sh__) && defined(__BIG_ENDIAN__)
-#error insmod.c may require changes for use on big endian SH
+#if defined(__sh__) && BB_BIG_ENDIAN
+# error insmod.c may require changes for use on big endian SH
#endif
/* it may or may not work on the SH1/SH2... Error on those also */
#if ((!(defined(__SH3__) || defined(__SH4__) || defined(__SH5__)))) && (defined(__sh__))
#define CONFIG_PLT_ENTRY_SIZE 8
#define CONFIG_USE_SINGLE
#ifndef EM_CYGNUS_V850 /* grumble */
-#define EM_CYGNUS_V850 0x9080
+#define EM_CYGNUS_V850 0x9080
#endif
#define SYMBOL_PREFIX "_"
#endif
#ifndef MODUTILS_MODULE_H
-static const int MODUTILS_MODULE_H = 1;
+/* Why? static const int MODUTILS_MODULE_H = 1;*/
#ident "$Id: insmod.c,v 1.126 2004/12/26 09:13:32 vapier Exp $"
#undef tgt_sizeof_char_p
#undef tgt_sizeof_void_p
#undef tgt_long
-static const int tgt_sizeof_long = 8;
-static const int tgt_sizeof_char_p = 8;
-static const int tgt_sizeof_void_p = 8;
+enum {
+ tgt_sizeof_long = 8,
+ tgt_sizeof_char_p = 8,
+ tgt_sizeof_void_p = 8
+};
#define tgt_long long long
#endif
};
/* Bits of module.flags. */
-static const int NEW_MOD_RUNNING = 1;
-static const int NEW_MOD_DELETED = 2;
-static const int NEW_MOD_AUTOCLEAN = 4;
-static const int NEW_MOD_VISITED = 8;
-static const int NEW_MOD_USED_ONCE = 16;
+enum {
+ NEW_MOD_RUNNING = 1,
+ NEW_MOD_DELETED = 2,
+ NEW_MOD_AUTOCLEAN = 4,
+ NEW_MOD_VISITED = 8,
+ NEW_MOD_USED_ONCE = 16
+};
int init_module(const char *name, const struct new_module *);
int query_module(const char *name, int which, void *buf,
size_t bufsize, size_t *ret);
/* Values for query_module's which. */
-
-static const int QM_MODULES = 1;
-static const int QM_DEPS = 2;
-static const int QM_REFS = 3;
-static const int QM_SYMBOLS = 4;
-static const int QM_INFO = 5;
+enum {
+ QM_MODULES = 1,
+ QM_DEPS = 2,
+ QM_REFS = 3,
+ QM_SYMBOLS = 4,
+ QM_INFO = 5
+};
/*======================================================================*/
/* The system calls unchanged between 2.0 and 2.1. */
#ifndef MODUTILS_OBJ_H
-static const int MODUTILS_OBJ_H = 1;
+/* Why? static const int MODUTILS_OBJ_H = 1; */
#ident "$Id: insmod.c,v 1.126 2004/12/26 09:13:32 vapier Exp $"
#include <elf.h>
#include <endian.h>
-#if __BYTE_ORDER == __LITTLE_ENDIAN
-#define ELFDATAM ELFDATA2LSB
-#elif __BYTE_ORDER == __BIG_ENDIAN
-#define ELFDATAM ELFDATA2MSB
-#endif
-
#ifndef ElfW
# if ELFCLASSM == ELFCLASS32
# define ElfW(x) Elf32_ ## x
ElfW(RelM) *rel, ElfW(Addr) value);
static void arch_create_got (struct obj_file *f);
-
+#if ENABLE_FEATURE_CHECK_TAINTED_MODULE
static int obj_gpl_license(struct obj_file *f, const char **license);
-
+#endif /* ENABLE_FEATURE_CHECK_TAINTED_MODULE */
#endif /* obj.h */
//----------------------------------------------------------------------------
//--------end of modutils obj.h
#ifdef SYMBOL_PREFIX
#define SPFX SYMBOL_PREFIX
#else
-#define SPFX ""
+#define SPFX ""
#endif
#define _PATH_MODULES "/lib/modules"
-static const int STRVERSIONLEN = 32;
+enum { STRVERSIONLEN = 32 };
/*======================================================================*/
#if defined(CONFIG_USE_GOT_ENTRIES) || defined(CONFIG_USE_PLT_ENTRIES)
struct arch_symbol *isym = (struct arch_symbol *) sym;
#endif
+#if defined(__arm__) || defined(__i386__) || defined(__mc68000__) || defined(__sh__) || defined(__s390__)
#if defined(CONFIG_USE_GOT_ENTRIES)
ElfW(Addr) got = ifile->got ? ifile->got->header.sh_addr : 0;
#endif
+#endif
#if defined(CONFIG_USE_PLT_ENTRIES)
ElfW(Addr) plt = ifile->plt ? ifile->plt->header.sh_addr : 0;
unsigned long *ip;
* (which is .got) similar to branch,
* but is full 32 bits relative */
- assert(got);
+ assert(got != 0);
*loc += got - dot;
break;
goto bb_use_plt;
case R_ARM_GOTOFF: /* address relative to the got */
- assert(got);
+ assert(got != 0);
*loc += v - got;
break;
break;
}
+#elif defined(__nios2__)
+
+ case R_NIOS2_NONE:
+ break;
+
+ case R_NIOS2_BFD_RELOC_32:
+ *loc += v;
+ break;
+
+ case R_NIOS2_BFD_RELOC_16:
+ if (v > 0xffff) {
+ ret = obj_reloc_overflow;
+ }
+ *(short *)loc = v;
+ break;
+
+ case R_NIOS2_BFD_RELOC_8:
+ if (v > 0xff) {
+ ret = obj_reloc_overflow;
+ }
+ *(char *)loc = v;
+ break;
+
+ case R_NIOS2_S16:
+ {
+ Elf32_Addr word;
+
+ if ((Elf32_Sword)v > 0x7fff ||
+ (Elf32_Sword)v < -(Elf32_Sword)0x8000) {
+ ret = obj_reloc_overflow;
+ }
+
+ word = *loc;
+ *loc = ((((word >> 22) << 16) | (v & 0xffff)) << 6) |
+ (word & 0x3f);
+ }
+ break;
+
+ case R_NIOS2_U16:
+ {
+ Elf32_Addr word;
+
+ if (v > 0xffff) {
+ ret = obj_reloc_overflow;
+ }
+
+ word = *loc;
+ *loc = ((((word >> 22) << 16) | (v & 0xffff)) << 6) |
+ (word & 0x3f);
+ }
+ break;
+
+ case R_NIOS2_PCREL16:
+ {
+ Elf32_Addr word;
+
+ v -= dot + 4;
+ if ((Elf32_Sword)v > 0x7fff ||
+ (Elf32_Sword)v < -(Elf32_Sword)0x8000) {
+ ret = obj_reloc_overflow;
+ }
+
+ word = *loc;
+ *loc = ((((word >> 22) << 16) | (v & 0xffff)) << 6) | (word & 0x3f);
+ }
+ break;
+
+ case R_NIOS2_GPREL:
+ {
+ Elf32_Addr word, gp;
+ /* get _gp */
+ gp = obj_symbol_final_value(f, obj_find_symbol(f, SPFX "_gp"));
+ v-=gp;
+ if ((Elf32_Sword)v > 0x7fff ||
+ (Elf32_Sword)v < -(Elf32_Sword)0x8000) {
+ ret = obj_reloc_overflow;
+ }
+
+ word = *loc;
+ *loc = ((((word >> 22) << 16) | (v & 0xffff)) << 6) | (word & 0x3f);
+ }
+ break;
+
+ case R_NIOS2_CALL26:
+ if (v & 3)
+ ret = obj_reloc_dangerous;
+ if ((v >> 28) != (dot >> 28))
+ ret = obj_reloc_overflow;
+ *loc = (*loc & 0x3f) | ((v >> 2) << 6);
+ break;
+
+ case R_NIOS2_IMM5:
+ {
+ Elf32_Addr word;
+
+ if (v > 0x1f) {
+ ret = obj_reloc_overflow;
+ }
+
+ word = *loc & ~0x7c0;
+ *loc = word | ((v & 0x1f) << 6);
+ }
+ break;
+
+ case R_NIOS2_IMM6:
+ {
+ Elf32_Addr word;
+
+ if (v > 0x3f) {
+ ret = obj_reloc_overflow;
+ }
+
+ word = *loc & ~0xfc0;
+ *loc = word | ((v & 0x3f) << 6);
+ }
+ break;
+
+ case R_NIOS2_IMM8:
+ {
+ Elf32_Addr word;
+
+ if (v > 0xff) {
+ ret = obj_reloc_overflow;
+ }
+
+ word = *loc & ~0x3fc0;
+ *loc = word | ((v & 0xff) << 6);
+ }
+ break;
+
+ case R_NIOS2_HI16:
+ {
+ Elf32_Addr word;
+
+ word = *loc;
+ *loc = ((((word >> 22) << 16) | ((v >>16) & 0xffff)) << 6) |
+ (word & 0x3f);
+ }
+ break;
+
+ case R_NIOS2_LO16:
+ {
+ Elf32_Addr word;
+
+ word = *loc;
+ *loc = ((((word >> 22) << 16) | (v & 0xffff)) << 6) |
+ (word & 0x3f);
+ }
+ break;
+
+ case R_NIOS2_HIADJ16:
+ {
+ Elf32_Addr word1, word2;
+
+ word1 = *loc;
+ word2 = ((v >> 16) + ((v >> 15) & 1)) & 0xffff;
+ *loc = ((((word1 >> 22) << 16) | word2) << 6) |
+ (word1 & 0x3f);
+ }
+ break;
+
+#elif defined(__powerpc64__)
+ /* PPC64 needs a 2.6 kernel, 2.4 module relocation irrelevant */
+
#elif defined(__powerpc__)
case R_PPC_ADDR16_HA:
break;
# endif
+#else
+# warning "no idea how to handle relocations on your arch"
#endif
default:
return NULL;
}
if (f->header.e_ident[EI_CLASS] != ELFCLASSM
- || f->header.e_ident[EI_DATA] != ELFDATAM
+ || f->header.e_ident[EI_DATA] != (BB_BIG_ENDIAN
+ ? ELFDATA2MSB : ELFDATA2LSB)
|| f->header.e_ident[EI_VERSION] != EV_CURRENT
|| !MATCH_MACHINE(f->header.e_machine)) {
bb_error_msg("ELF file not for this architecture");
* linux/include/linux/module.h. Checking for leading "GPL" will not
* work, somebody will use "GPL sucks, this is proprietary".
*/
- static const char *gpl_licenses[] = {
+ static const char * const gpl_licenses[] = {
"GPL",
"GPL v2",
"GPL and additional rights",
#endif
-extern int insmod_main( int argc, char **argv)
+int insmod_main( int argc, char **argv)
{
int opt;
int len;
} else
m_filename = bb_xstrdup(argv[optind]);
- if (!flag_quiet)
+ if (flag_verbose)
printf("Using %s\n", m_filename);
#ifdef CONFIG_FEATURE_2_6_MODULES
#ifdef CONFIG_FEATURE_CLEAN_UP
if(fp)
fclose(fp);
- if(tmp1) {
- free(tmp1);
- } else {
+ free(tmp1);
+ if(!tmp1) {
free(m_name);
}
free(m_filename);
}
}
-extern int insmod_ng_main( int argc, char **argv)
+int insmod_ng_main( int argc, char **argv)
{
int i;
int fd;
strcat(options, " ");
}
- if ((fd = open(filename, O_RDONLY, 0)) < 0) {
- bb_perror_msg_and_die("cannot open module `%s'", filename);
- }
+ fd = bb_xopen3(filename, O_RDONLY, 0);
fstat(fd, &st);
len = st.st_size;
- map = mmap(NULL, len, PROT_READ, MAP_SHARED, fd, 0);
+ map = mmap(NULL, len, PROT_READ, MAP_PRIVATE, fd, 0);
if (map == MAP_FAILED) {
bb_perror_msg_and_die("cannot mmap `%s'", filename);
}
projects / oweals / busybox.git / blobdiff