/*
* Mini insmod implementation for busybox
*
- * This version of insmod supports x86, ARM, SH3/4, powerpc, m68k,
- * MIPS, and v850e.
+ * This version of insmod supports ARM, CRIS, H8/300, x86, ia64, x86_64,
+ * m68k, MIPS, PowerPC, S390, SH3/4/5, Sparc, v850e, and x86_64.
*
- * Copyright (C) 1999,2000 by Lineo, inc. and Erik Andersen
- * Copyright (C) 1999,2000,2001,2002 by Erik Andersen <andersee@debian.org>
+ * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
* and Ron Alder <alder@lineo.com>
*
+ * Rodney Radford <rradford@mindspring.com> 17-Aug-2004.
+ * Added x86_64 support.
+ *
* Miles Bader <miles@gnu.org> added NEC V850E support.
*
* Modified by Bryan Rittmeyer <bryan@ixiacom.com> to support SH4
* very minor changes required to also work with StrongArm and presumably
* all ARM based systems.
*
+ * Yoshinori Sato <ysato@users.sourceforge.jp> 19-May-2004.
+ * added Renesas H8/300 support.
+ *
+ * Paul Mundt <lethal@linux-sh.org> 08-Aug-2003.
+ * Integrated support for sh64 (SH-5), from preliminary modutils
+ * patches from Benedict Gaster <benedict.gaster@superh.com>.
+ * Currently limited to support for 32bit ABI.
+ *
* Magnus Damm <damm@opensource.se> 22-May-2002.
* The plt and got code are now using the same structs.
* Added generic linked list code to fully support PowerPC.
* These blocks should be easy maintain and sync with obj_xxx.c in modutils.
*
* Magnus Damm <damm@opensource.se> added PowerPC support 20-Feb-2001.
- * PowerPC specific code stolen from modutils-2.3.16,
+ * PowerPC specific code stolen from modutils-2.3.16,
* written by Paul Mackerras, Copyright 1996, 1997 Linux International.
* I've only tested the code on mpc8xx platforms in big-endian mode.
* Did some cleanup and added CONFIG_USE_xxx_ENTRIES...
#include <sys/utsname.h>
#include "busybox.h"
-#ifdef CONFIG_FEATURE_NEW_MODULE_INTERFACE
-# undef CONFIG_FEATURE_OLD_MODULE_INTERFACE
-# define new_sys_init_module init_module
-#else
-# define old_sys_init_module init_module
+#if !defined(CONFIG_FEATURE_2_4_MODULES) && \
+ !defined(CONFIG_FEATURE_2_6_MODULES)
+#define CONFIG_FEATURE_2_4_MODULES
+#endif
+
+#if !defined(CONFIG_FEATURE_2_4_MODULES)
+#define insmod_ng_main insmod_main
+#endif
+
+#if defined(CONFIG_FEATURE_2_6_MODULES)
+extern int insmod_ng_main( int argc, char **argv);
#endif
+
+#if defined(CONFIG_FEATURE_2_4_MODULES)
+
+
#ifdef CONFIG_FEATURE_INSMOD_LOADINKMEM
-#define LOADBITS 0
+#define LOADBITS 0
#else
#define LOADBITS 1
#endif
+/* Alpha */
+#if defined(__alpha__)
+#define MATCH_MACHINE(x) (x == EM_ALPHA)
+#define SHT_RELM SHT_RELA
+#define Elf64_RelM Elf64_Rela
+#define ELFCLASSM ELFCLASS64
+#endif
+
+/* ARM support */
#if defined(__arm__)
+#define MATCH_MACHINE(x) (x == EM_ARM)
+#define SHT_RELM SHT_REL
+#define Elf32_RelM Elf32_Rel
+#define ELFCLASSM ELFCLASS32
#define CONFIG_USE_PLT_ENTRIES
#define CONFIG_PLT_ENTRY_SIZE 8
#define CONFIG_USE_GOT_ENTRIES
#define CONFIG_GOT_ENTRY_SIZE 8
#define CONFIG_USE_SINGLE
+#endif
-#define MATCH_MACHINE(x) (x == EM_ARM)
-#define SHT_RELM SHT_REL
-#define Elf32_RelM Elf32_Rel
+/* CRIS */
+#if defined(__cris__)
+#define MATCH_MACHINE(x) (x == EM_CRIS)
+#define SHT_RELM SHT_RELA
+#define Elf32_RelM Elf32_Rela
#define ELFCLASSM ELFCLASS32
+#ifndef EM_CRIS
+#define EM_CRIS 76
+#define R_CRIS_NONE 0
+#define R_CRIS_32 3
+#endif
#endif
-#if defined(__i386__)
-#define CONFIG_USE_GOT_ENTRIES
-#define CONFIG_GOT_ENTRY_SIZE 4
+/* PA-RISC / HP-PA */
+#if defined(__hppa__)
+#define MATCH_MACHINE(x) (x == EM_PARISC)
+#define SHT_RELM SHT_RELA
+#if defined(__LP64__)
+#define Elf64_RelM Elf64_Rela
+#define ELFCLASSM ELFCLASS64
+#else
+#define Elf32_RelM Elf32_Rela
+#define ELFCLASSM ELFCLASS32
+#endif
+#endif
+
+/* H8/300 */
+#if defined(__H8300H__) || defined(__H8300S__)
+#define MATCH_MACHINE(x) (x == EM_H8_300)
+#define SHT_RELM SHT_RELA
+#define Elf32_RelM Elf32_Rela
+#define ELFCLASSM ELFCLASS32
#define CONFIG_USE_SINGLE
+#define SYMBOL_PREFIX "_"
+#endif
+/* x86 */
+#if defined(__i386__)
#ifndef EM_486
#define MATCH_MACHINE(x) (x == EM_386)
#else
#define MATCH_MACHINE(x) (x == EM_386 || x == EM_486)
#endif
-
#define SHT_RELM SHT_REL
#define Elf32_RelM Elf32_Rel
#define ELFCLASSM ELFCLASS32
-#endif
-
-#if defined(__mc68000__)
#define CONFIG_USE_GOT_ENTRIES
#define CONFIG_GOT_ENTRY_SIZE 4
#define CONFIG_USE_SINGLE
+#endif
+
+/* IA64, aka Itanium */
+#if defined(__ia64__)
+#define MATCH_MACHINE(x) (x == EM_IA_64)
+#define SHT_RELM SHT_RELA
+#define Elf64_RelM Elf64_Rela
+#define ELFCLASSM ELFCLASS64
+#endif
+/* m68k */
+#if defined(__mc68000__)
#define MATCH_MACHINE(x) (x == EM_68K)
#define SHT_RELM SHT_RELA
#define Elf32_RelM Elf32_Rela
+#define ELFCLASSM ELFCLASS32
+#define CONFIG_USE_GOT_ENTRIES
+#define CONFIG_GOT_ENTRY_SIZE 4
+#define CONFIG_USE_SINGLE
#endif
+/* MIPS */
#if defined(__mips__)
+#define MATCH_MACHINE(x) (x == EM_MIPS || x == EM_MIPS_RS3_LE)
+#define SHT_RELM SHT_REL
+#define Elf32_RelM Elf32_Rel
+#define ELFCLASSM ELFCLASS32
/* Account for ELF spec changes. */
#ifndef EM_MIPS_RS3_LE
#ifdef EM_MIPS_RS4_BE
#define EM_MIPS_RS3_LE 10
#endif
#endif /* !EM_MIPS_RS3_LE */
-
-#define MATCH_MACHINE(x) (x == EM_MIPS || x == EM_MIPS_RS3_LE)
-#define SHT_RELM SHT_REL
-#define Elf32_RelM Elf32_Rel
-#define ELFCLASSM ELFCLASS32
#define ARCHDATAM "__dbe_table"
#endif
-#if defined(__powerpc__)
+/* PowerPC */
+#if defined(__powerpc64__)
+#define MATCH_MACHINE(x) (x == EM_PPC64)
+#define SHT_RELM SHT_RELA
+#define Elf64_RelM Elf64_Rela
+#define ELFCLASSM ELFCLASS64
+#elif defined(__powerpc__)
+#define MATCH_MACHINE(x) (x == EM_PPC)
+#define SHT_RELM SHT_RELA
+#define Elf32_RelM Elf32_Rela
+#define ELFCLASSM ELFCLASS32
#define CONFIG_USE_PLT_ENTRIES
#define CONFIG_PLT_ENTRY_SIZE 16
#define CONFIG_USE_PLT_LIST
-#define CONFIG_LIST_ARCHTYPE ElfW(Addr)
+#define CONFIG_LIST_ARCHTYPE ElfW(Addr)
#define CONFIG_USE_LIST
+#define ARCHDATAM "__ftr_fixup"
+#endif
-#define MATCH_MACHINE(x) (x == EM_PPC)
+/* S390 */
+#if defined(__s390__)
+#define MATCH_MACHINE(x) (x == EM_S390)
#define SHT_RELM SHT_RELA
#define Elf32_RelM Elf32_Rela
#define ELFCLASSM ELFCLASS32
-#define ARCHDATAM "__ftr_fixup"
-#endif
-
-#if defined(__sh__)
+#define CONFIG_USE_PLT_ENTRIES
+#define CONFIG_PLT_ENTRY_SIZE 8
#define CONFIG_USE_GOT_ENTRIES
-#define CONFIG_GOT_ENTRY_SIZE 4
+#define CONFIG_GOT_ENTRY_SIZE 8
#define CONFIG_USE_SINGLE
+#endif
+/* SuperH */
+#if defined(__sh__)
#define MATCH_MACHINE(x) (x == EM_SH)
#define SHT_RELM SHT_RELA
#define Elf32_RelM Elf32_Rela
#define ELFCLASSM ELFCLASS32
-
-/* the SH changes have only been tested on the SH4 in =little endian= mode */
+#define CONFIG_USE_GOT_ENTRIES
+#define CONFIG_GOT_ENTRY_SIZE 4
+#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(__SH4__) || defined(__SH3__)) && defined(__BIG_ENDIAN__)
-#error insmod.c may require changes for use on big endian SH4/SH3
+#if defined(__sh__) && defined(__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... So let's error on those
- also */
-#if (defined(__sh__) && (!(defined(__SH3__) || defined(__SH4__))))
-#error insmod.c may require changes for non-SH3/SH4 use
+/* it may or may not work on the SH1/SH2... Error on those also */
+#if ((!(defined(__SH3__) || defined(__SH4__) || defined(__SH5__)))) && (defined(__sh__))
+#error insmod.c may require changes for SH1 or SH2 use
#endif
#endif
+/* Sparc */
+#if defined(__sparc__)
+#define MATCH_MACHINE(x) (x == EM_SPARC)
+#define SHT_RELM SHT_RELA
+#define Elf32_RelM Elf32_Rela
+#define ELFCLASSM ELFCLASS32
+#endif
+
+/* v850e */
#if defined (__v850e__)
+#define MATCH_MACHINE(x) ((x) == EM_V850 || (x) == EM_CYGNUS_V850)
+#define SHT_RELM SHT_RELA
+#define Elf32_RelM Elf32_Rela
+#define ELFCLASSM ELFCLASS32
#define CONFIG_USE_PLT_ENTRIES
#define CONFIG_PLT_ENTRY_SIZE 8
#define CONFIG_USE_SINGLE
-
#ifndef EM_CYGNUS_V850 /* grumble */
#define EM_CYGNUS_V850 0x9080
#endif
+#define SYMBOL_PREFIX "_"
+#endif
-#define MATCH_MACHINE(x) ((x) == EM_V850 || (x) == EM_CYGNUS_V850)
+/* X86_64 */
+#if defined(__x86_64__)
+#define MATCH_MACHINE(x) (x == EM_X86_64)
#define SHT_RELM SHT_RELA
-#define Elf32_RelM Elf32_Rela
-#define ELFCLASSM ELFCLASS32
-
-#define SYMBOL_PREFIX "_"
+#define CONFIG_USE_GOT_ENTRIES
+#define CONFIG_GOT_ENTRY_SIZE 8
+#define CONFIG_USE_SINGLE
+#define Elf64_RelM Elf64_Rela
+#define ELFCLASSM ELFCLASS64
#endif
#ifndef SHT_RELM
#ifndef MODUTILS_MODULE_H
static const int MODUTILS_MODULE_H = 1;
-#ident "$Id: insmod.c,v 1.94 2003/01/23 04:57:35 andersen Exp $"
-
-/* This file contains the structures used by the 2.0 and 2.1 kernels.
- We do not use the kernel headers directly because we do not wish
- to be dependant on a particular kernel version to compile insmod. */
-
-
-/*======================================================================*/
-/* The structures used by Linux 2.0. */
-
-/* The symbol format used by get_kernel_syms(2). */
-struct old_kernel_sym
-{
- unsigned long value;
- char name[60];
-};
-
-struct old_module_ref
-{
- unsigned long module; /* kernel addresses */
- unsigned long next;
-};
-
-struct old_module_symbol
-{
- unsigned long addr;
- unsigned long name;
-};
-
-struct old_symbol_table
-{
- int size; /* total, including string table!!! */
- int n_symbols;
- int n_refs;
- struct old_module_symbol symbol[0]; /* actual size defined by n_symbols */
- struct old_module_ref ref[0]; /* actual size defined by n_refs */
-};
-
-struct old_mod_routines
-{
- unsigned long init;
- unsigned long cleanup;
-};
-
-struct old_module
-{
- unsigned long next;
- unsigned long ref; /* the list of modules that refer to me */
- unsigned long symtab;
- unsigned long name;
- int size; /* size of module in pages */
- unsigned long addr; /* address of module */
- int state;
- unsigned long cleanup; /* cleanup routine */
-};
-
-/* Sent to init_module(2) or'ed into the code size parameter. */
-static const int OLD_MOD_AUTOCLEAN = 0x40000000; /* big enough, but no sign problems... */
-
-int get_kernel_syms(struct old_kernel_sym *);
-int old_sys_init_module(const char *name, char *code, unsigned codesize,
- struct old_mod_routines *, struct old_symbol_table *);
+#ident "$Id: insmod.c,v 1.126 2004/12/26 09:13:32 vapier Exp $"
/*======================================================================*/
/* For sizeof() which are related to the module platform and not to the
/* Note: new_module_symbol does not use tgt_long intentionally */
struct new_module_symbol
{
- unsigned long value;
- unsigned long name;
+ unsigned long value;
+ unsigned long name;
};
struct new_module_persist;
struct new_module_ref
{
- unsigned tgt_long dep; /* kernel addresses */
- unsigned tgt_long ref;
- unsigned tgt_long next_ref;
+ unsigned tgt_long dep; /* kernel addresses */
+ unsigned tgt_long ref;
+ unsigned tgt_long next_ref;
};
struct new_module
{
- unsigned tgt_long size_of_struct; /* == sizeof(module) */
- unsigned tgt_long next;
- unsigned tgt_long name;
- unsigned tgt_long size;
-
- tgt_long usecount;
- unsigned tgt_long flags; /* AUTOCLEAN et al */
-
- unsigned nsyms;
- unsigned ndeps;
-
- unsigned tgt_long syms;
- unsigned tgt_long deps;
- unsigned tgt_long refs;
- unsigned tgt_long init;
- unsigned tgt_long cleanup;
- unsigned tgt_long ex_table_start;
- unsigned tgt_long ex_table_end;
+ unsigned tgt_long size_of_struct; /* == sizeof(module) */
+ unsigned tgt_long next;
+ unsigned tgt_long name;
+ unsigned tgt_long size;
+
+ tgt_long usecount;
+ unsigned tgt_long flags; /* AUTOCLEAN et al */
+
+ unsigned nsyms;
+ unsigned ndeps;
+
+ unsigned tgt_long syms;
+ unsigned tgt_long deps;
+ unsigned tgt_long refs;
+ unsigned tgt_long init;
+ unsigned tgt_long cleanup;
+ unsigned tgt_long ex_table_start;
+ unsigned tgt_long ex_table_end;
#ifdef __alpha__
- unsigned tgt_long gp;
-#endif
- /* Everything after here is extension. */
- unsigned tgt_long persist_start;
- unsigned tgt_long persist_end;
- unsigned tgt_long can_unload;
- unsigned tgt_long runsize;
-#ifdef CONFIG_FEATURE_NEW_MODULE_INTERFACE
- const char *kallsyms_start; /* All symbols for kernel debugging */
- const char *kallsyms_end;
- const char *archdata_start; /* arch specific data for module */
- const char *archdata_end;
- const char *kernel_data; /* Reserved for kernel internal use */
+ unsigned tgt_long gp;
#endif
+ /* Everything after here is extension. */
+ unsigned tgt_long persist_start;
+ unsigned tgt_long persist_end;
+ unsigned tgt_long can_unload;
+ unsigned tgt_long runsize;
+ const char *kallsyms_start; /* All symbols for kernel debugging */
+ const char *kallsyms_end;
+ const char *archdata_start; /* arch specific data for module */
+ const char *archdata_end;
+ const char *kernel_data; /* Reserved for kernel internal use */
};
#ifdef ARCHDATAM
struct new_module_info
{
- unsigned long addr;
- unsigned long size;
- unsigned long flags;
- long usecount;
+ unsigned long addr;
+ unsigned long size;
+ unsigned long flags;
+ long usecount;
};
/* Bits of module.flags. */
static const int NEW_MOD_VISITED = 8;
static const int NEW_MOD_USED_ONCE = 16;
-int new_sys_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);
+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. */
#ifndef MODUTILS_OBJ_H
static const int MODUTILS_OBJ_H = 1;
-#ident "$Id: insmod.c,v 1.94 2003/01/23 04:57:35 andersen Exp $"
+#ident "$Id: insmod.c,v 1.126 2004/12/26 09:13:32 vapier Exp $"
/* The relocatable object is manipulated using elfin types. */
# endif
#endif
-/* For some reason this is missing from libc5. */
+/* For some reason this is missing from some ancient C libraries.... */
#ifndef ELF32_ST_INFO
# define ELF32_ST_INFO(bind, type) (((bind) << 4) + ((type) & 0xf))
#endif
# define ELF64_ST_INFO(bind, type) (((bind) << 4) + ((type) & 0xf))
#endif
+#define ELF_ST_BIND(info) ELFW(ST_BIND)(info)
+#define ELF_ST_TYPE(info) ELFW(ST_TYPE)(info)
+#define ELF_ST_INFO(bind, type) ELFW(ST_INFO)(bind, type)
+#define ELF_R_TYPE(val) ELFW(R_TYPE)(val)
+#define ELF_R_SYM(val) ELFW(R_SYM)(val)
+
struct obj_string_patch;
struct obj_symbol_patch;
struct obj_section
{
- ElfW(Shdr) header;
- const char *name;
- char *contents;
- struct obj_section *load_next;
- int idx;
+ ElfW(Shdr) header;
+ const char *name;
+ char *contents;
+ struct obj_section *load_next;
+ int idx;
};
struct obj_symbol
{
- struct obj_symbol *next; /* hash table link */
- const char *name;
- unsigned long value;
- unsigned long size;
- int secidx; /* the defining section index/module */
- int info;
- int ksymidx; /* for export to the kernel symtab */
- int referenced; /* actually used in the link */
+ struct obj_symbol *next; /* hash table link */
+ const char *name;
+ unsigned long value;
+ unsigned long size;
+ int secidx; /* the defining section index/module */
+ int info;
+ int ksymidx; /* for export to the kernel symtab */
+ int referenced; /* actually used in the link */
};
/* Hardcode the hash table size. We shouldn't be needing so many
struct obj_file
{
- ElfW(Ehdr) header;
- ElfW(Addr) baseaddr;
- struct obj_section **sections;
- struct obj_section *load_order;
- struct obj_section **load_order_search_start;
- struct obj_string_patch *string_patches;
- struct obj_symbol_patch *symbol_patches;
- int (*symbol_cmp)(const char *, const char *);
- unsigned long (*symbol_hash)(const char *);
- unsigned long local_symtab_size;
- struct obj_symbol **local_symtab;
- struct obj_symbol *symtab[HASH_BUCKETS];
+ ElfW(Ehdr) header;
+ ElfW(Addr) baseaddr;
+ struct obj_section **sections;
+ struct obj_section *load_order;
+ struct obj_section **load_order_search_start;
+ struct obj_string_patch *string_patches;
+ struct obj_symbol_patch *symbol_patches;
+ int (*symbol_cmp)(const char *, const char *);
+ unsigned long (*symbol_hash)(const char *);
+ unsigned long local_symtab_size;
+ struct obj_symbol **local_symtab;
+ struct obj_symbol *symtab[HASH_BUCKETS];
};
enum obj_reloc
{
- obj_reloc_ok,
- obj_reloc_overflow,
- obj_reloc_dangerous,
- obj_reloc_unhandled
+ obj_reloc_ok,
+ obj_reloc_overflow,
+ obj_reloc_dangerous,
+ obj_reloc_unhandled
};
struct obj_string_patch
{
- struct obj_string_patch *next;
- int reloc_secidx;
- ElfW(Addr) reloc_offset;
- ElfW(Addr) string_offset;
+ struct obj_string_patch *next;
+ int reloc_secidx;
+ ElfW(Addr) reloc_offset;
+ ElfW(Addr) string_offset;
};
struct obj_symbol_patch
{
- struct obj_symbol_patch *next;
- int reloc_secidx;
- ElfW(Addr) reloc_offset;
- struct obj_symbol *sym;
+ struct obj_symbol_patch *next;
+ int reloc_secidx;
+ ElfW(Addr) reloc_offset;
+ struct obj_symbol *sym;
};
static int obj_string_patch(struct obj_file *f, int secidx, ElfW(Addr) offset,
const char *string);
-#ifdef CONFIG_FEATURE_NEW_MODULE_INTERFACE
static int obj_symbol_patch(struct obj_file *f, int secidx, ElfW(Addr) offset,
struct obj_symbol *sym);
-#endif
static int obj_check_undefineds(struct obj_file *f);
static void arch_create_got (struct obj_file *f);
-#ifdef CONFIG_FEATURE_NEW_MODULE_INTERFACE
-static int arch_init_module (struct obj_file *f, struct new_module *);
-#endif
+static int obj_gpl_license(struct obj_file *f, const char **license);
#endif /* obj.h */
//----------------------------------------------------------------------------
//----------------------------------------------------------------------------
-
/* SPFX is always a string, so it can be concatenated to string constants. */
#ifdef SYMBOL_PREFIX
#define SPFX SYMBOL_PREFIX
#if defined(__mips__)
struct mips_hi16
{
- struct mips_hi16 *next;
- Elf32_Addr *addr;
- Elf32_Addr value;
+ struct mips_hi16 *next;
+ ElfW(Addr) *addr;
+ ElfW(Addr) value;
};
#endif
if (fullname[0] == '\0')
return (FALSE);
else {
- char *tmp, *tmp1 = xstrdup(filename);
- tmp = get_last_path_component(tmp1);
+ char *tmp, *tmp1 = bb_xstrdup(filename);
+ tmp = bb_get_last_path_component(tmp1);
if (strcmp(tmp, fullname) == 0) {
free(tmp1);
/* Stop searching if we find a match */
- m_filename = xstrdup(filename);
- return (TRUE);
+ m_filename = bb_xstrdup(filename);
+ return (FALSE);
}
free(tmp1);
}
- return (FALSE);
+ return (TRUE);
}
#endif
#endif
- switch (ELF32_R_TYPE(rel->r_info)) {
-
+ switch (ELF_R_TYPE(rel->r_info)) {
#if defined(__arm__)
- case R_ARM_NONE:
- break;
-
- case R_ARM_ABS32:
- *loc += v;
- break;
-
- case R_ARM_GOT32:
- goto bb_use_got;
-
- case R_ARM_GOTPC:
- /* relative reloc, always to _GLOBAL_OFFSET_TABLE_
- * (which is .got) similar to branch,
- * but is full 32 bits relative */
-
- assert(got);
- *loc += got - dot;
- break;
-
- case R_ARM_PC24:
- case R_ARM_PLT32:
- goto bb_use_plt;
-
- case R_ARM_GOTOFF: /* address relative to the got */
- assert(got);
- *loc += v - got;
- break;
+ case R_ARM_NONE:
+ break;
-#elif defined(__i386__)
+ case R_ARM_ABS32:
+ *loc += v;
+ break;
+
+ case R_ARM_GOT32:
+ goto bb_use_got;
- case R_386_NONE:
- break;
+ case R_ARM_GOTPC:
+ /* relative reloc, always to _GLOBAL_OFFSET_TABLE_
+ * (which is .got) similar to branch,
+ * but is full 32 bits relative */
- case R_386_32:
- *loc += v;
- break;
+ assert(got);
+ *loc += got - dot;
+ break;
- case R_386_PLT32:
- case R_386_PC32:
- *loc += v - dot;
- break;
+ case R_ARM_PC24:
+ case R_ARM_PLT32:
+ goto bb_use_plt;
- case R_386_GLOB_DAT:
- case R_386_JMP_SLOT:
- *loc = v;
- break;
+ case R_ARM_GOTOFF: /* address relative to the got */
+ assert(got);
+ *loc += v - got;
+ break;
- case R_386_RELATIVE:
- *loc += f->baseaddr;
- break;
+#elif defined(__s390__)
+ case R_390_32:
+ *(unsigned int *) loc += v;
+ break;
+ case R_390_16:
+ *(unsigned short *) loc += v;
+ break;
+ case R_390_8:
+ *(unsigned char *) loc += v;
+ break;
- case R_386_GOTPC:
- assert(got != 0);
- *loc += got - dot;
- break;
+ case R_390_PC32:
+ *(unsigned int *) loc += v - dot;
+ break;
+ case R_390_PC16DBL:
+ *(unsigned short *) loc += (v - dot) >> 1;
+ break;
+ case R_390_PC16:
+ *(unsigned short *) loc += v - dot;
+ break;
- case R_386_GOT32:
- goto bb_use_got;
+ case R_390_PLT32:
+ case R_390_PLT16DBL:
+ /* find the plt entry and initialize it. */
+ assert(isym != NULL);
+ pe = (struct arch_single_entry *) &isym->pltent;
+ assert(pe->allocated);
+ if (pe->inited == 0) {
+ ip = (unsigned long *)(ifile->plt->contents + pe->offset);
+ ip[0] = 0x0d105810; /* basr 1,0; lg 1,10(1); br 1 */
+ ip[1] = 0x100607f1;
+ if (ELF_R_TYPE(rel->r_info) == R_390_PLT16DBL)
+ ip[2] = v - 2;
+ else
+ ip[2] = v;
+ pe->inited = 1;
+ }
- case R_386_GOTOFF:
- assert(got != 0);
- *loc += v - got;
- break;
+ /* Insert relative distance to target. */
+ v = plt + pe->offset - dot;
+ if (ELF_R_TYPE(rel->r_info) == R_390_PLT32)
+ *(unsigned int *) loc = (unsigned int) v;
+ else if (ELF_R_TYPE(rel->r_info) == R_390_PLT16DBL)
+ *(unsigned short *) loc = (unsigned short) ((v + 2) >> 1);
+ break;
-#elif defined(__mc68000__)
+ case R_390_GLOB_DAT:
+ case R_390_JMP_SLOT:
+ *loc = v;
+ break;
- case R_68K_NONE:
- break;
+ case R_390_RELATIVE:
+ *loc += f->baseaddr;
+ break;
- case R_68K_32:
- *loc += v;
- break;
+ case R_390_GOTPC:
+ assert(got != 0);
+ *(unsigned long *) loc += got - dot;
+ break;
- case R_68K_8:
- if (v > 0xff) {
- ret = obj_reloc_overflow;
- }
- *(char *)loc = v;
- break;
+ case R_390_GOT12:
+ case R_390_GOT16:
+ case R_390_GOT32:
+ assert(isym != NULL);
+ assert(got != 0);
+ if (!isym->gotent.inited)
+ {
+ isym->gotent.inited = 1;
+ *(ElfW(Addr) *)(ifile->got->contents + isym->gotent.offset) = v;
+ }
+ if (ELF_R_TYPE(rel->r_info) == R_390_GOT12)
+ *(unsigned short *) loc |= (*(unsigned short *) loc + isym->gotent.offset) & 0xfff;
+ else if (ELF_R_TYPE(rel->r_info) == R_390_GOT16)
+ *(unsigned short *) loc += isym->gotent.offset;
+ else if (ELF_R_TYPE(rel->r_info) == R_390_GOT32)
+ *(unsigned int *) loc += isym->gotent.offset;
+ break;
- case R_68K_16:
- if (v > 0xffff) {
- ret = obj_reloc_overflow;
- }
- *(short *)loc = v;
- break;
-
- case R_68K_PC8:
- v -= dot;
- if ((Elf32_Sword)v > 0x7f ||
- (Elf32_Sword)v < -(Elf32_Sword)0x80) {
- ret = obj_reloc_overflow;
- }
- *(char *)loc = v;
- break;
-
- case R_68K_PC16:
- v -= dot;
- if ((Elf32_Sword)v > 0x7fff ||
- (Elf32_Sword)v < -(Elf32_Sword)0x8000) {
- ret = obj_reloc_overflow;
- }
- *(short *)loc = v;
- break;
+#ifndef R_390_GOTOFF32
+#define R_390_GOTOFF32 R_390_GOTOFF
+#endif
+ case R_390_GOTOFF32:
+ assert(got != 0);
+ *loc += v - got;
+ break;
- case R_68K_PC32:
- *(int *)loc = v - dot;
- break;
+#elif defined(__i386__)
+
+ case R_386_NONE:
+ break;
- case R_68K_GLOB_DAT:
- case R_68K_JMP_SLOT:
- *loc = v;
- break;
+ case R_386_32:
+ *loc += v;
+ break;
- case R_68K_RELATIVE:
- *(int *)loc += f->baseaddr;
- break;
+ case R_386_PLT32:
+ case R_386_PC32:
+ *loc += v - dot;
+ break;
- case R_68K_GOT32:
- goto bb_use_got;
+ case R_386_GLOB_DAT:
+ case R_386_JMP_SLOT:
+ *loc = v;
+ break;
- case R_68K_GOTOFF:
- assert(got != 0);
- *loc += v - got;
- break;
+ case R_386_RELATIVE:
+ *loc += f->baseaddr;
+ break;
-#elif defined(__mips__)
+ case R_386_GOTPC:
+ assert(got != 0);
+ *loc += got - dot;
+ break;
- case R_MIPS_NONE:
- break;
+ case R_386_GOT32:
+ goto bb_use_got;
- case R_MIPS_32:
- *loc += v;
- break;
+ case R_386_GOTOFF:
+ assert(got != 0);
+ *loc += v - got;
+ break;
- case R_MIPS_26:
- if (v % 4)
- ret = obj_reloc_dangerous;
- if ((v & 0xf0000000) != ((dot + 4) & 0xf0000000))
- ret = obj_reloc_overflow;
- *loc =
- (*loc & ~0x03ffffff) | ((*loc + (v >> 2)) &
- 0x03ffffff);
- break;
+#elif defined(__x86_64__)
- case R_MIPS_HI16:
- {
- struct mips_hi16 *n;
-
- /* We cannot relocate this one now because we don't know the value
- of the carry we need to add. Save the information, and let LO16
- do the actual relocation. */
- n = (struct mips_hi16 *) xmalloc(sizeof *n);
- n->addr = loc;
- n->value = v;
- n->next = ifile->mips_hi16_list;
- ifile->mips_hi16_list = n;
- break;
- }
+ case R_X86_64_NONE:
+ break;
- case R_MIPS_LO16:
- {
- unsigned long insnlo = *loc;
- Elf32_Addr val, vallo;
-
- /* Sign extend the addend we extract from the lo insn. */
- vallo = ((insnlo & 0xffff) ^ 0x8000) - 0x8000;
-
- if (ifile->mips_hi16_list != NULL) {
- struct mips_hi16 *l;
-
- l = ifile->mips_hi16_list;
- while (l != NULL) {
- struct mips_hi16 *next;
- unsigned long insn;
-
- /* The value for the HI16 had best be the same. */
- assert(v == l->value);
-
- /* Do the HI16 relocation. Note that we actually don't
- need to know anything about the LO16 itself, except where
- to find the low 16 bits of the addend needed by the LO16. */
- insn = *l->addr;
- val =
- ((insn & 0xffff) << 16) +
- vallo;
- val += v;
-
- /* Account for the sign extension that will happen in the
- low bits. */
- val =
- ((val >> 16) +
- ((val & 0x8000) !=
- 0)) & 0xffff;
-
- insn = (insn & ~0xffff) | val;
- *l->addr = insn;
-
- next = l->next;
- free(l);
- l = next;
- }
+ case R_X86_64_64:
+ *loc += v;
+ break;
- ifile->mips_hi16_list = NULL;
+ case R_X86_64_32:
+ *(unsigned int *) loc += v;
+ if (v > 0xffffffff)
+ {
+ ret = obj_reloc_overflow; /* Kernel module compiled without -mcmodel=kernel. */
+ /* error("Possibly is module compiled without -mcmodel=kernel!"); */
}
+ break;
- /* Ok, we're done with the HI16 relocs. Now deal with the LO16. */
- val = v + vallo;
- insnlo = (insnlo & ~0xffff) | (val & 0xffff);
- *loc = insnlo;
+ case R_X86_64_32S:
+ *(signed int *) loc += v;
break;
- }
-#elif defined(__powerpc__)
+ case R_X86_64_16:
+ *(unsigned short *) loc += v;
+ break;
- case R_PPC_ADDR16_HA:
- *(unsigned short *)loc = (v + 0x8000) >> 16;
- break;
+ case R_X86_64_8:
+ *(unsigned char *) loc += v;
+ break;
- case R_PPC_ADDR16_HI:
- *(unsigned short *)loc = v >> 16;
- break;
+ case R_X86_64_PC32:
+ *(unsigned int *) loc += v - dot;
+ break;
- case R_PPC_ADDR16_LO:
- *(unsigned short *)loc = v;
- break;
+ case R_X86_64_PC16:
+ *(unsigned short *) loc += v - dot;
+ break;
- case R_PPC_REL24:
- goto bb_use_plt;
+ case R_X86_64_PC8:
+ *(unsigned char *) loc += v - dot;
+ break;
- case R_PPC_REL32:
- *loc = v - dot;
- break;
+ case R_X86_64_GLOB_DAT:
+ case R_X86_64_JUMP_SLOT:
+ *loc = v;
+ break;
- case R_PPC_ADDR32:
- *loc = v;
- break;
+ case R_X86_64_RELATIVE:
+ *loc += f->baseaddr;
+ break;
-#elif defined(__sh__)
+ case R_X86_64_GOT32:
+ case R_X86_64_GOTPCREL:
+ goto bb_use_got;
+#if 0
+ assert(isym != NULL);
+ if (!isym->gotent.reloc_done)
+ {
+ isym->gotent.reloc_done = 1;
+ *(Elf64_Addr *)(ifile->got->contents + isym->gotent.offset) = v;
+ }
+ /* XXX are these really correct? */
+ if (ELF64_R_TYPE(rel->r_info) == R_X86_64_GOTPCREL)
+ *(unsigned int *) loc += v + isym->gotent.offset;
+ else
+ *loc += isym->gotent.offset;
+ break;
+#endif
+
+#elif defined(__mc68000__)
- case R_SH_NONE:
- break;
+ case R_68K_NONE:
+ break;
- case R_SH_DIR32:
- *loc += v;
- break;
+ case R_68K_32:
+ *loc += v;
+ break;
- case R_SH_REL32:
- *loc += v - dot;
- break;
-
- case R_SH_PLT32:
- *loc = v - dot;
- break;
+ case R_68K_8:
+ if (v > 0xff) {
+ ret = obj_reloc_overflow;
+ }
+ *(char *)loc = v;
+ break;
- case R_SH_GLOB_DAT:
- case R_SH_JMP_SLOT:
- *loc = v;
- break;
+ case R_68K_16:
+ if (v > 0xffff) {
+ ret = obj_reloc_overflow;
+ }
+ *(short *)loc = v;
+ break;
- case R_SH_RELATIVE:
- *loc = f->baseaddr + rel->r_addend;
- break;
+ case R_68K_PC8:
+ v -= dot;
+ if ((ElfW(Sword))v > 0x7f ||
+ (ElfW(Sword))v < -(ElfW(Sword))0x80) {
+ ret = obj_reloc_overflow;
+ }
+ *(char *)loc = v;
+ break;
- case R_SH_GOTPC:
- assert(got != 0);
- *loc = got - dot + rel->r_addend;
- break;
+ case R_68K_PC16:
+ v -= dot;
+ if ((ElfW(Sword))v > 0x7fff ||
+ (ElfW(Sword))v < -(ElfW(Sword))0x8000) {
+ ret = obj_reloc_overflow;
+ }
+ *(short *)loc = v;
+ break;
- case R_SH_GOT32:
- goto bb_use_got;
+ case R_68K_PC32:
+ *(int *)loc = v - dot;
+ break;
- case R_SH_GOTOFF:
- assert(got != 0);
- *loc = v - got;
- break;
+ case R_68K_GLOB_DAT:
+ case R_68K_JMP_SLOT:
+ *loc = v;
+ break;
-#endif
+ case R_68K_RELATIVE:
+ *(int *)loc += f->baseaddr;
+ break;
- default:
- printf("Warning: unhandled reloc %d\n",(int)ELF32_R_TYPE(rel->r_info));
- ret = obj_reloc_unhandled;
- break;
+ case R_68K_GOT32:
+ goto bb_use_got;
-#if defined (__v850e__)
- case R_V850_NONE:
- break;
-
- case R_V850_32:
- /* We write two shorts instead of a long because even
- 32-bit insns only need half-word alignment, but
- 32-bit data needs to be long-word aligned. */
- v += ((unsigned short *)loc)[0];
- v += ((unsigned short *)loc)[1] << 16;
- ((unsigned short *)loc)[0] = v & 0xffff;
- ((unsigned short *)loc)[1] = (v >> 16) & 0xffff;
- break;
-
- case R_V850_22_PCREL:
- goto bb_use_plt;
+#ifdef R_68K_GOTOFF
+ case R_68K_GOTOFF:
+ assert(got != 0);
+ *loc += v - got;
+ break;
#endif
-#if defined(CONFIG_USE_PLT_ENTRIES)
+#elif defined(__mips__)
- bb_use_plt:
+ case R_MIPS_NONE:
+ break;
- /* find the plt entry and initialize it if necessary */
- assert(isym != NULL);
+ case R_MIPS_32:
+ *loc += v;
+ break;
-#if defined(CONFIG_USE_PLT_LIST)
- for (pe = isym->pltent; pe != NULL && pe->addend != rel->r_addend;)
- pe = pe->next;
- assert(pe != NULL);
-#else
- pe = &isym->pltent;
-#endif
+ case R_MIPS_26:
+ if (v % 4)
+ ret = obj_reloc_dangerous;
+ if ((v & 0xf0000000) != ((dot + 4) & 0xf0000000))
+ ret = obj_reloc_overflow;
+ *loc =
+ (*loc & ~0x03ffffff) | ((*loc + (v >> 2)) &
+ 0x03ffffff);
+ break;
- if (! pe->inited) {
- ip = (unsigned long *) (ifile->plt->contents + pe->offset);
+ case R_MIPS_HI16:
+ {
+ struct mips_hi16 *n;
+
+ /* We cannot relocate this one now because we don't know the value
+ of the carry we need to add. Save the information, and let LO16
+ do the actual relocation. */
+ n = (struct mips_hi16 *) xmalloc(sizeof *n);
+ n->addr = loc;
+ n->value = v;
+ n->next = ifile->mips_hi16_list;
+ ifile->mips_hi16_list = n;
+ break;
+ }
- /* generate some machine code */
+ case R_MIPS_LO16:
+ {
+ unsigned long insnlo = *loc;
+ ElfW(Addr) val, vallo;
+
+ /* Sign extend the addend we extract from the lo insn. */
+ vallo = ((insnlo & 0xffff) ^ 0x8000) - 0x8000;
+
+ if (ifile->mips_hi16_list != NULL) {
+ struct mips_hi16 *l;
+
+ l = ifile->mips_hi16_list;
+ while (l != NULL) {
+ struct mips_hi16 *next;
+ unsigned long insn;
+
+ /* The value for the HI16 had best be the same. */
+ assert(v == l->value);
+
+ /* Do the HI16 relocation. Note that we actually don't
+ need to know anything about the LO16 itself, except where
+ to find the low 16 bits of the addend needed by the LO16. */
+ insn = *l->addr;
+ val =
+ ((insn & 0xffff) << 16) +
+ vallo;
+ val += v;
+
+ /* Account for the sign extension that will happen in the
+ low bits. */
+ val =
+ ((val >> 16) +
+ ((val & 0x8000) !=
+ 0)) & 0xffff;
+
+ insn = (insn & ~0xffff) | val;
+ *l->addr = insn;
+
+ next = l->next;
+ free(l);
+ l = next;
+ }
-#if defined(__arm__)
- ip[0] = 0xe51ff004; /* ldr pc,[pc,#-4] */
- ip[1] = v; /* sym@ */
-#endif
-#if defined(__powerpc__)
- ip[0] = 0x3d600000 + ((v + 0x8000) >> 16); /* lis r11,sym@ha */
- ip[1] = 0x396b0000 + (v & 0xffff); /* addi r11,r11,sym@l */
- ip[2] = 0x7d6903a6; /* mtctr r11 */
- ip[3] = 0x4e800420; /* bctr */
-#endif
-#if defined (__v850e__)
- /* We have to trash a register, so we assume that any control
- transfer more than 21-bits away must be a function call
- (so we can use a call-clobbered register). */
- ip[0] = 0x0621 + ((v & 0xffff) << 16); /* mov sym, r1 ... */
- ip[1] = ((v >> 16) & 0xffff) + 0x610000; /* ...; jmp r1 */
-#endif
- pe->inited = 1;
- }
+ ifile->mips_hi16_list = NULL;
+ }
- /* relative distance to target */
- v -= dot;
- /* if the target is too far away.... */
-#if defined (__arm__) || defined (__powerpc__)
- if ((int)v < -0x02000000 || (int)v >= 0x02000000)
-#elif defined (__v850e__)
- if ((Elf32_Sword)v > 0x1fffff || (Elf32_Sword)v < (Elf32_Sword)-0x200000)
-#endif
- /* go via the plt */
- v = plt + pe->offset - dot;
+ /* Ok, we're done with the HI16 relocs. Now deal with the LO16. */
+ val = v + vallo;
+ insnlo = (insnlo & ~0xffff) | (val & 0xffff);
+ *loc = insnlo;
+ break;
+ }
-#if defined (__v850e__)
- if (v & 1)
-#else
- if (v & 3)
-#endif
- ret = obj_reloc_dangerous;
+#elif defined(__powerpc__)
- /* merge the offset into the instruction. */
-#if defined(__arm__)
- /* Convert to words. */
- v >>= 2;
+ case R_PPC_ADDR16_HA:
+ *(unsigned short *)loc = (v + 0x8000) >> 16;
+ break;
- *loc = (*loc & ~0x00ffffff) | ((v + *loc) & 0x00ffffff);
-#endif
-#if defined(__powerpc__)
- *loc = (*loc & ~0x03fffffc) | (v & 0x03fffffc);
-#endif
-#if defined (__v850e__)
- /* We write two shorts instead of a long because even 32-bit insns
- only need half-word alignment, but the 32-bit data write needs
- to be long-word aligned. */
- ((unsigned short *)loc)[0] =
- (*(unsigned short *)loc & 0xffc0) /* opcode + reg */
- | ((v >> 16) & 0x3f); /* offs high part */
- ((unsigned short *)loc)[1] =
- (v & 0xffff); /* offs low part */
-#endif
- break;
-#endif /* CONFIG_USE_PLT_ENTRIES */
+ case R_PPC_ADDR16_HI:
+ *(unsigned short *)loc = v >> 16;
+ break;
-#if defined(CONFIG_USE_GOT_ENTRIES)
- bb_use_got:
+ case R_PPC_ADDR16_LO:
+ *(unsigned short *)loc = v;
+ break;
- assert(isym != NULL);
- /* needs an entry in the .got: set it, once */
- if (!isym->gotent.inited) {
- isym->gotent.inited = 1;
- *(ElfW(Addr) *) (ifile->got->contents + isym->gotent.offset) = v;
- }
- /* make the reloc with_respect_to_.got */
-#if defined(__sh__)
- *loc += isym->gotent.offset + rel->r_addend;
-#elif defined(__i386__) || defined(__arm__) || defined(__mc68000__)
- *loc += isym->gotent.offset;
-#endif
- break;
+ case R_PPC_REL24:
+ goto bb_use_plt;
-#endif /* CONFIG_USE_GOT_ENTRIES */
+ case R_PPC_REL32:
+ *loc = v - dot;
+ break;
+
+ case R_PPC_ADDR32:
+ *loc = v;
+ break;
+
+#elif defined(__sh__)
+
+ case R_SH_NONE:
+ break;
+
+ case R_SH_DIR32:
+ *loc += v;
+ break;
+
+ case R_SH_REL32:
+ *loc += v - dot;
+ break;
+
+ case R_SH_PLT32:
+ *loc = v - dot;
+ break;
+
+ case R_SH_GLOB_DAT:
+ case R_SH_JMP_SLOT:
+ *loc = v;
+ break;
+
+ case R_SH_RELATIVE:
+ *loc = f->baseaddr + rel->r_addend;
+ break;
+
+ case R_SH_GOTPC:
+ assert(got != 0);
+ *loc = got - dot + rel->r_addend;
+ break;
+
+ case R_SH_GOT32:
+ goto bb_use_got;
+
+ case R_SH_GOTOFF:
+ assert(got != 0);
+ *loc = v - got;
+ break;
+
+#if defined(__SH5__)
+ case R_SH_IMM_MEDLOW16:
+ case R_SH_IMM_LOW16:
+ {
+ ElfW(Addr) word;
+
+ if (ELF_R_TYPE(rel->r_info) == R_SH_IMM_MEDLOW16)
+ v >>= 16;
+
+ /*
+ * movi and shori have the format:
+ *
+ * | op | imm | reg | reserved |
+ * 31..26 25..10 9.. 4 3 .. 0
+ *
+ * so we simply mask and or in imm.
+ */
+ word = *loc & ~0x3fffc00;
+ word |= (v & 0xffff) << 10;
+
+ *loc = word;
+
+ break;
+ }
+
+ case R_SH_IMM_MEDLOW16_PCREL:
+ case R_SH_IMM_LOW16_PCREL:
+ {
+ ElfW(Addr) word;
+
+ word = *loc & ~0x3fffc00;
+
+ v -= dot;
+
+ if (ELF_R_TYPE(rel->r_info) == R_SH_IMM_MEDLOW16_PCREL)
+ v >>= 16;
+
+ word |= (v & 0xffff) << 10;
+
+ *loc = word;
+
+ break;
+ }
+#endif /* __SH5__ */
+#endif /* __sh__ */
+
+ default:
+ printf("Warning: unhandled reloc %d\n",(int)ELF_R_TYPE(rel->r_info));
+ ret = obj_reloc_unhandled;
+ break;
+
+#if defined (__v850e__)
+ case R_V850_NONE:
+ break;
+
+ case R_V850_32:
+ /* We write two shorts instead of a long because even
+ 32-bit insns only need half-word alignment, but
+ 32-bit data needs to be long-word aligned. */
+ v += ((unsigned short *)loc)[0];
+ v += ((unsigned short *)loc)[1] << 16;
+ ((unsigned short *)loc)[0] = v & 0xffff;
+ ((unsigned short *)loc)[1] = (v >> 16) & 0xffff;
+ break;
+
+ case R_V850_22_PCREL:
+ goto bb_use_plt;
+#endif
+
+#if defined (__cris__)
+ case R_CRIS_NONE:
+ break;
+
+ case R_CRIS_32:
+ /* CRIS keeps the relocation value in the r_addend field and
+ * should not use whats in *loc at all
+ */
+ *loc = v;
+ break;
+#endif
+
+#if defined(__H8300H__) || defined(__H8300S__)
+ case R_H8_DIR24R8:
+ loc = (ElfW(Addr) *)((ElfW(Addr))loc - 1);
+ *loc = (*loc & 0xff000000) | ((*loc & 0xffffff) + v);
+ break;
+ case R_H8_DIR24A8:
+ *loc += v;
+ break;
+ case R_H8_DIR32:
+ case R_H8_DIR32A16:
+ *loc += v;
+ break;
+ case R_H8_PCREL16:
+ v -= dot + 2;
+ if ((ElfW(Sword))v > 0x7fff ||
+ (ElfW(Sword))v < -(ElfW(Sword))0x8000)
+ ret = obj_reloc_overflow;
+ else
+ *(unsigned short *)loc = v;
+ break;
+ case R_H8_PCREL8:
+ v -= dot + 1;
+ if ((ElfW(Sword))v > 0x7f ||
+ (ElfW(Sword))v < -(ElfW(Sword))0x80)
+ ret = obj_reloc_overflow;
+ else
+ *(unsigned char *)loc = v;
+ break;
+#endif
+
+#if defined(CONFIG_USE_PLT_ENTRIES)
+
+bb_use_plt:
+
+ /* find the plt entry and initialize it if necessary */
+ assert(isym != NULL);
+
+#if defined(CONFIG_USE_PLT_LIST)
+ for (pe = isym->pltent; pe != NULL && pe->addend != rel->r_addend;)
+ pe = pe->next;
+ assert(pe != NULL);
+#else
+ pe = &isym->pltent;
+#endif
+
+ if (! pe->inited) {
+ ip = (unsigned long *) (ifile->plt->contents + pe->offset);
+
+ /* generate some machine code */
+
+#if defined(__arm__)
+ ip[0] = 0xe51ff004; /* ldr pc,[pc,#-4] */
+ ip[1] = v; /* sym@ */
+#endif
+#if defined(__powerpc__)
+ ip[0] = 0x3d600000 + ((v + 0x8000) >> 16); /* lis r11,sym@ha */
+ ip[1] = 0x396b0000 + (v & 0xffff); /* addi r11,r11,sym@l */
+ ip[2] = 0x7d6903a6; /* mtctr r11 */
+ ip[3] = 0x4e800420; /* bctr */
+#endif
+#if defined (__v850e__)
+ /* We have to trash a register, so we assume that any control
+ transfer more than 21-bits away must be a function call
+ (so we can use a call-clobbered register). */
+ ip[0] = 0x0621 + ((v & 0xffff) << 16); /* mov sym, r1 ... */
+ ip[1] = ((v >> 16) & 0xffff) + 0x610000; /* ...; jmp r1 */
+#endif
+ pe->inited = 1;
+ }
+
+ /* relative distance to target */
+ v -= dot;
+ /* if the target is too far away.... */
+#if defined (__arm__) || defined (__powerpc__)
+ if ((int)v < -0x02000000 || (int)v >= 0x02000000)
+#elif defined (__v850e__)
+ if ((ElfW(Sword))v > 0x1fffff || (ElfW(Sword))v < (ElfW(Sword))-0x200000)
+#endif
+ /* go via the plt */
+ v = plt + pe->offset - dot;
+
+#if defined (__v850e__)
+ if (v & 1)
+#else
+ if (v & 3)
+#endif
+ ret = obj_reloc_dangerous;
+
+ /* merge the offset into the instruction. */
+#if defined(__arm__)
+ /* Convert to words. */
+ v >>= 2;
+
+ *loc = (*loc & ~0x00ffffff) | ((v + *loc) & 0x00ffffff);
+#endif
+#if defined(__powerpc__)
+ *loc = (*loc & ~0x03fffffc) | (v & 0x03fffffc);
+#endif
+#if defined (__v850e__)
+ /* We write two shorts instead of a long because even 32-bit insns
+ only need half-word alignment, but the 32-bit data write needs
+ to be long-word aligned. */
+ ((unsigned short *)loc)[0] =
+ (*(unsigned short *)loc & 0xffc0) /* opcode + reg */
+ | ((v >> 16) & 0x3f); /* offs high part */
+ ((unsigned short *)loc)[1] =
+ (v & 0xffff); /* offs low part */
+#endif
+ break;
+#endif /* CONFIG_USE_PLT_ENTRIES */
+
+#if defined(CONFIG_USE_GOT_ENTRIES)
+bb_use_got:
+
+ assert(isym != NULL);
+ /* needs an entry in the .got: set it, once */
+ if (!isym->gotent.inited) {
+ isym->gotent.inited = 1;
+ *(ElfW(Addr) *) (ifile->got->contents + isym->gotent.offset) = v;
+ }
+ /* make the reloc with_respect_to_.got */
+#if defined(__sh__)
+ *loc += isym->gotent.offset + rel->r_addend;
+#elif defined(__i386__) || defined(__arm__) || defined(__mc68000__)
+ *loc += isym->gotent.offset;
+#endif
+ break;
+
+#endif /* CONFIG_USE_GOT_ENTRIES */
}
return ret;
}
-#if defined(CONFIG_USE_LIST)
+#if defined(CONFIG_USE_LIST)
static int arch_list_add(ElfW(RelM) *rel, struct arch_list_entry **list,
int offset, int size)
#endif
-#if defined(CONFIG_USE_SINGLE)
+#if defined(CONFIG_USE_SINGLE)
static int arch_single_init(ElfW(RelM) *rel, struct arch_single_entry *single,
int offset, int size)
#if defined(CONFIG_USE_GOT_ENTRIES) || defined(CONFIG_USE_PLT_ENTRIES)
-static struct obj_section *arch_xsect_init(struct obj_file *f, char *name,
+static struct obj_section *arch_xsect_init(struct obj_file *f, char *name,
int offset, int size)
{
struct obj_section *myrelsec = obj_find_section(f, name);
if (myrelsec) {
obj_extend_section(myrelsec, offset);
} else {
- myrelsec = obj_create_alloced_section(f, name,
- size, offset);
+ myrelsec = obj_create_alloced_section(f, name,
+ size, offset);
assert(myrelsec);
}
#if defined(CONFIG_USE_PLT_ENTRIES)
int plt_offset = 0, plt_needed = 0, plt_allocate;
#endif
- struct obj_section *relsec, *symsec, *strsec;
+ struct obj_section *relsec, *symsec, *strsec;
ElfW(RelM) *rel, *relend;
ElfW(Sym) *symtab, *extsym;
const char *strtab, *name;
strtab = (const char *) strsec->contents;
for (; rel < relend; ++rel) {
- extsym = &symtab[ELF32_R_SYM(rel->r_info)];
+ extsym = &symtab[ELF_R_SYM(rel->r_info)];
#if defined(CONFIG_USE_GOT_ENTRIES)
got_allocate = 0;
plt_allocate = 0;
#endif
- switch (ELF32_R_TYPE(rel->r_info)) {
+ switch (ELF_R_TYPE(rel->r_info)) {
#if defined(__arm__)
- case R_ARM_PC24:
- case R_ARM_PLT32:
- plt_allocate = 1;
- break;
+ case R_ARM_PC24:
+ case R_ARM_PLT32:
+ plt_allocate = 1;
+ break;
- case R_ARM_GOTOFF:
- case R_ARM_GOTPC:
- got_needed = 1;
- continue;
+ case R_ARM_GOTOFF:
+ case R_ARM_GOTPC:
+ got_needed = 1;
+ continue;
- case R_ARM_GOT32:
- got_allocate = 1;
- break;
+ case R_ARM_GOT32:
+ got_allocate = 1;
+ break;
#elif defined(__i386__)
- case R_386_GOTPC:
- case R_386_GOTOFF:
- got_needed = 1;
- continue;
+ case R_386_GOTPC:
+ case R_386_GOTOFF:
+ got_needed = 1;
+ continue;
- case R_386_GOT32:
- got_allocate = 1;
- break;
+ case R_386_GOT32:
+ got_allocate = 1;
+ break;
#elif defined(__powerpc__)
- case R_PPC_REL24:
- plt_allocate = 1;
- break;
+ case R_PPC_REL24:
+ plt_allocate = 1;
+ break;
#elif defined(__mc68000__)
- case R_68K_GOT32:
- got_allocate = 1;
- break;
+ case R_68K_GOT32:
+ got_allocate = 1;
+ break;
- case R_68K_GOTOFF:
- got_needed = 1;
- continue;
+#ifdef R_68K_GOTOFF
+ case R_68K_GOTOFF:
+ got_needed = 1;
+ continue;
+#endif
#elif defined(__sh__)
- case R_SH_GOT32:
- got_allocate = 1;
- break;
+ case R_SH_GOT32:
+ got_allocate = 1;
+ break;
- case R_SH_GOTPC:
- case R_SH_GOTOFF:
- got_needed = 1;
- continue;
+ case R_SH_GOTPC:
+ case R_SH_GOTOFF:
+ got_needed = 1;
+ continue;
#elif defined (__v850e__)
- case R_V850_22_PCREL:
- plt_needed = 1;
- break;
+ case R_V850_22_PCREL:
+ plt_needed = 1;
+ break;
#endif
- default:
- continue;
+ default:
+ continue;
}
if (extsym->st_name != 0) {
#if defined(CONFIG_USE_GOT_ENTRIES)
if (got_allocate) {
got_offset += arch_single_init(
- rel, &intsym->gotent,
- got_offset, CONFIG_GOT_ENTRY_SIZE);
+ rel, &intsym->gotent,
+ got_offset, CONFIG_GOT_ENTRY_SIZE);
got_needed = 1;
}
#endif
#if defined(CONFIG_USE_PLT_ENTRIES)
if (plt_allocate) {
-#if defined(CONFIG_USE_PLT_LIST)
+#if defined(CONFIG_USE_PLT_LIST)
plt_offset += arch_list_add(
- rel, &intsym->pltent,
- plt_offset, CONFIG_PLT_ENTRY_SIZE);
+ rel, &intsym->pltent,
+ plt_offset, CONFIG_PLT_ENTRY_SIZE);
#else
plt_offset += arch_single_init(
- rel, &intsym->pltent,
- plt_offset, CONFIG_PLT_ENTRY_SIZE);
+ rel, &intsym->pltent,
+ plt_offset, CONFIG_PLT_ENTRY_SIZE);
#endif
plt_needed = 1;
}
#if defined(CONFIG_USE_GOT_ENTRIES)
if (got_needed) {
ifile->got = arch_xsect_init(f, ".got", got_offset,
- CONFIG_GOT_ENTRY_SIZE);
+ CONFIG_GOT_ENTRY_SIZE);
}
#endif
#if defined(CONFIG_USE_PLT_ENTRIES)
if (plt_needed) {
ifile->plt = arch_xsect_init(f, ".plt", plt_offset,
- CONFIG_PLT_ENTRY_SIZE);
+ CONFIG_PLT_ENTRY_SIZE);
}
#endif
#endif /* defined(CONFIG_USE_GOT_ENTRIES) || defined(CONFIG_USE_PLT_ENTRIES) */
}
-#ifdef CONFIG_FEATURE_NEW_MODULE_INTERFACE
-static int arch_init_module(struct obj_file *f, struct new_module *mod)
-{
- return 1;
-}
-#endif
-
/*======================================================================*/
/* Standard ELF hash function. */
{
struct obj_symbol *sym;
unsigned long hash = f->symbol_hash(name) % HASH_BUCKETS;
- int n_type = ELFW(ST_TYPE) (info);
- int n_binding = ELFW(ST_BIND) (info);
+ int n_type = ELF_ST_TYPE(info);
+ int n_binding = ELF_ST_BIND(info);
for (sym = f->symtab[hash]; sym; sym = sym->next)
if (f->symbol_cmp(sym->name, name) == 0) {
int o_secidx = sym->secidx;
int o_info = sym->info;
- int o_type = ELFW(ST_TYPE) (o_info);
- int o_binding = ELFW(ST_BIND) (o_info);
+ int o_type = ELF_ST_TYPE(o_info);
+ int o_binding = ELF_ST_BIND(o_info);
/* A redefinition! Is it legal? */
/* Don't unify COMMON symbols with object types the programmer
doesn't expect. */
else if (secidx == SHN_COMMON
- && (o_type == STT_NOTYPE || o_type == STT_OBJECT))
+ && (o_type == STT_NOTYPE || o_type == STT_OBJECT))
return sym;
else if (o_secidx == SHN_COMMON
- && (n_type == STT_NOTYPE || n_type == STT_OBJECT))
+ && (n_type == STT_NOTYPE || n_type == STT_OBJECT))
goto found;
else {
/* Don't report an error if the symbol is coming from
the kernel or some external module. */
if (secidx <= SHN_HIRESERVE)
- error_msg("%s multiply defined", name);
+ bb_error_msg("%s multiply defined", name);
return sym;
}
}
f->symtab[hash] = sym;
sym->ksymidx = -1;
- if (ELFW(ST_BIND)(info) == STB_LOCAL && symidx != -1) {
+ if (ELF_ST_BIND(info) == STB_LOCAL && symidx != -1) {
if (symidx >= f->local_symtab_size)
- error_msg("local symbol %s with index %ld exceeds local_symtab_size %ld",
+ bb_error_msg("local symbol %s with index %ld exceeds local_symtab_size %ld",
name, (long) symidx, (long) f->local_symtab_size);
else
f->local_symtab[symidx] = sym;
}
- found:
+found:
sym->name = name;
sym->value = value;
sym->size = size;
ac = 0;
if (a->name[0] != '.' || strlen(a->name) != 10 ||
- strcmp(a->name + 5, ".init"))
+ strcmp(a->name + 5, ".init"))
ac |= 32;
if (af & SHF_ALLOC)
ac |= 16;
static void *obj_extend_section(struct obj_section *sec, unsigned long more)
{
unsigned long oldsize = sec->header.sh_size;
- if (more) {
+ if (more) {
sec->contents = xrealloc(sec->contents, sec->header.sh_size += more);
}
return sec->contents + oldsize;
new module. */
static int
-add_symbols_from(
- struct obj_file *f,
+add_symbols_from( struct obj_file *f,
int idx, struct new_module_symbol *syms, size_t nsyms)
{
struct new_module_symbol *s;
char *name_buf = 0;
size_t name_alloced_size = 0;
#endif
+#ifdef CONFIG_FEATURE_CHECK_TAINTED_MODULE
+ int gpl;
+ gpl = obj_gpl_license(f, NULL) == 0;
+#endif
for (i = 0, s = syms; i < nsyms; ++i, ++s) {
/* Only add symbols that are already marked external.
If we override locals we may cause problems for
argument initialization. We will also create a false
dependency on the module. */
struct obj_symbol *sym;
- char *name = (char *)s->name;
+ char *name;
+
+ /* GPL licensed modules can use symbols exported with
+ * EXPORT_SYMBOL_GPL, so ignore any GPLONLY_ prefix on the
+ * exported names. Non-GPL modules never see any GPLONLY_
+ * symbols so they cannot fudge it by adding the prefix on
+ * their references.
+ */
+ if (strncmp((char *)s->name, "GPLONLY_", 8) == 0) {
+#ifdef CONFIG_FEATURE_CHECK_TAINTED_MODULE
+ if (gpl)
+ s->name += 8;
+ else
+#endif
+ continue;
+ }
+ name = (char *)s->name;
#ifdef SYMBOL_PREFIX
/* Prepend SYMBOL_PREFIX to the symbol's name (the
strcpy (name_buf, SYMBOL_PREFIX);
strcpy (name_buf + extra - 1, name);
name = name_buf;
-#endif /* SYMBOL_PREFIX */
-
- sym = obj_find_symbol(f, name);
- if (sym && !(ELFW(ST_BIND) (sym->info) == STB_LOCAL)) {
-#ifdef SYMBOL_PREFIX
- /* Put NAME_BUF into more permanent storage. */
- name = xmalloc (name_size);
- strcpy (name, name_buf);
-#endif
- sym = obj_add_symbol(f, name, -1,
- ELFW(ST_INFO) (STB_GLOBAL,
- STT_NOTYPE),
- idx, s->value, 0);
- /* Did our symbol just get installed? If so, mark the
- module as "used". */
- if (sym->secidx == idx)
- used = 1;
- }
- }
-
- return used;
-}
-
-static void add_kernel_symbols(struct obj_file *f)
-{
- struct external_module *m;
- int i, nused = 0;
-
- /* Add module symbols first. */
-
- for (i = 0, m = ext_modules; i < n_ext_modules; ++i, ++m)
- if (m->nsyms
- && add_symbols_from(f, SHN_HIRESERVE + 2 + i, m->syms,
- m->nsyms)) m->used = 1, ++nused;
-
- n_ext_modules_used = nused;
-
- /* And finally the symbols from the kernel proper. */
-
- if (nksyms)
- add_symbols_from(f, SHN_HIRESERVE + 1, ksyms, nksyms);
-}
-
-static char *get_modinfo_value(struct obj_file *f, const char *key)
-{
- struct obj_section *sec;
- char *p, *v, *n, *ep;
- size_t klen = strlen(key);
-
- sec = obj_find_section(f, ".modinfo");
- if (sec == NULL)
- return NULL;
- p = sec->contents;
- ep = p + sec->header.sh_size;
- while (p < ep) {
- v = strchr(p, '=');
- n = strchr(p, '\0');
- if (v) {
- if (p + klen == v && strncmp(p, key, klen) == 0)
- return v + 1;
- } else {
- if (p + klen == n && strcmp(p, key) == 0)
- return n;
- }
- p = n + 1;
- }
-
- return NULL;
-}
-
-
-/*======================================================================*/
-/* Functions relating to module loading in pre 2.1 kernels. */
-
-static int
-old_process_module_arguments(struct obj_file *f, int argc, char **argv)
-{
- while (argc > 0) {
- char *p, *q;
- struct obj_symbol *sym;
- int *loc;
-
- p = *argv;
- if ((q = strchr(p, '=')) == NULL) {
- argc--;
- continue;
- }
- *q++ = '\0';
-
- sym = obj_find_symbol(f, p);
-
- /* Also check that the parameter was not resolved from the kernel. */
- if (sym == NULL || sym->secidx > SHN_HIRESERVE) {
- error_msg("symbol for parameter %s not found", p);
- return 0;
- }
-
- loc = (int *) (f->sections[sym->secidx]->contents + sym->value);
-
- /* Do C quoting if we begin with a ". */
- if (*q == '"') {
- char *r, *str;
-
- str = alloca(strlen(q));
- for (r = str, q++; *q != '"'; ++q, ++r) {
- if (*q == '\0') {
- error_msg("improperly terminated string argument for %s", p);
- return 0;
- } else if (*q == '\\')
- switch (*++q) {
- case 'a':
- *r = '\a';
- break;
- case 'b':
- *r = '\b';
- break;
- case 'e':
- *r = '\033';
- break;
- case 'f':
- *r = '\f';
- break;
- case 'n':
- *r = '\n';
- break;
- case 'r':
- *r = '\r';
- break;
- case 't':
- *r = '\t';
- break;
-
- case '0':
- case '1':
- case '2':
- case '3':
- case '4':
- case '5':
- case '6':
- case '7':
- {
- int c = *q - '0';
- if (q[1] >= '0' && q[1] <= '7') {
- c = (c * 8) + *++q - '0';
- if (q[1] >= '0' && q[1] <= '7')
- c = (c * 8) + *++q - '0';
- }
- *r = c;
- }
- break;
-
- default:
- *r = *q;
- break;
- } else
- *r = *q;
- }
- *r = '\0';
- obj_string_patch(f, sym->secidx, sym->value, str);
- } else if (*q >= '0' && *q <= '9') {
- do
- *loc++ = strtoul(q, &q, 0);
- while (*q++ == ',');
- } else {
- char *contents = f->sections[sym->secidx]->contents;
- char *myloc = contents + sym->value;
- char *r; /* To search for commas */
-
- /* Break the string with comas */
- while ((r = strchr(q, ',')) != (char *) NULL) {
- *r++ = '\0';
- obj_string_patch(f, sym->secidx, myloc - contents, q);
- myloc += sizeof(char *);
- q = r;
- }
-
- /* last part */
- obj_string_patch(f, sym->secidx, myloc - contents, q);
- }
-
- argc--, argv++;
- }
-
- return 1;
-}
-
-#ifdef CONFIG_FEATURE_INSMOD_VERSION_CHECKING
-static int old_is_module_checksummed(struct obj_file *f)
-{
- return obj_find_symbol(f, "Using_Versions") != NULL;
-}
-/* Get the module's kernel version in the canonical integer form. */
-
-static int
-old_get_module_version(struct obj_file *f, char str[STRVERSIONLEN])
-{
- struct obj_symbol *sym;
- char *p, *q;
- int a, b, c;
-
- sym = obj_find_symbol(f, "kernel_version");
- if (sym == NULL)
- return -1;
-
- p = f->sections[sym->secidx]->contents + sym->value;
- safe_strncpy(str, p, STRVERSIONLEN);
-
- a = strtoul(p, &p, 10);
- if (*p != '.')
- return -1;
- b = strtoul(p + 1, &p, 10);
- if (*p != '.')
- return -1;
- c = strtoul(p + 1, &q, 10);
- if (p + 1 == q)
- return -1;
-
- return a << 16 | b << 8 | c;
-}
-
-#endif /* CONFIG_FEATURE_INSMOD_VERSION_CHECKING */
-
-#ifdef CONFIG_FEATURE_OLD_MODULE_INTERFACE
-
-/* Fetch all the symbols and divvy them up as appropriate for the modules. */
-
-static int old_get_kernel_symbols(const char *m_name)
-{
- struct old_kernel_sym *ks, *k;
- struct new_module_symbol *s;
- struct external_module *mod;
- int nks, nms, nmod, i;
-
- nks = get_kernel_syms(NULL);
- if (nks <= 0) {
- if (nks)
- perror_msg("get_kernel_syms: %s", m_name);
- else
- error_msg("No kernel symbols");
- return 0;
- }
-
- ks = k = xmalloc(nks * sizeof(*ks));
-
- if (get_kernel_syms(ks) != nks) {
- perror("inconsistency with get_kernel_syms -- is someone else "
- "playing with modules?");
- free(ks);
- return 0;
- }
-
- /* Collect the module information. */
-
- mod = NULL;
- nmod = -1;
-
- while (k->name[0] == '#' && k->name[1]) {
- struct old_kernel_sym *k2;
-
- /* Find out how many symbols this module has. */
- for (k2 = k + 1; k2->name[0] != '#'; ++k2)
- continue;
- nms = k2 - k - 1;
-
- mod = xrealloc(mod, (++nmod + 1) * sizeof(*mod));
- mod[nmod].name = k->name + 1;
- mod[nmod].addr = k->value;
- mod[nmod].used = 0;
- mod[nmod].nsyms = nms;
- mod[nmod].syms = s = (nms ? xmalloc(nms * sizeof(*s)) : NULL);
-
- for (i = 0, ++k; i < nms; ++i, ++s, ++k) {
- s->name = (unsigned long) k->name;
- s->value = k->value;
- }
-
- k = k2;
- }
-
- ext_modules = mod;
- n_ext_modules = nmod + 1;
-
- /* Now collect the symbols for the kernel proper. */
-
- if (k->name[0] == '#')
- ++k;
-
- nksyms = nms = nks - (k - ks);
- ksyms = s = (nms ? xmalloc(nms * sizeof(*s)) : NULL);
-
- for (i = 0; i < nms; ++i, ++s, ++k) {
- s->name = (unsigned long) k->name;
- s->value = k->value;
- }
-
- return 1;
-}
-
-/* Return the kernel symbol checksum version, or zero if not used. */
-
-static int old_is_kernel_checksummed(void)
-{
- /* Using_Versions is the first symbol. */
- if (nksyms > 0
- && strcmp((char *) ksyms[0].name,
- "Using_Versions") == 0) return ksyms[0].value;
- else
- return 0;
-}
-
-
-static int old_create_mod_use_count(struct obj_file *f)
-{
- struct obj_section *sec;
-
- sec = obj_create_alloced_section_first(f, ".moduse", sizeof(long),
- sizeof(long));
-
- obj_add_symbol(f, "mod_use_count_", -1,
- ELFW(ST_INFO) (STB_LOCAL, STT_OBJECT), sec->idx, 0,
- sizeof(long));
-
- return 1;
-}
-
-static int
-old_init_module(const char *m_name, struct obj_file *f,
- unsigned long m_size)
-{
- char *image;
- struct old_mod_routines routines;
- struct old_symbol_table *symtab;
- int ret;
-
- /* Create the symbol table */
- {
- int nsyms = 0, strsize = 0, total;
-
- /* Size things first... */
- if (flag_export) {
- int i;
- for (i = 0; i < HASH_BUCKETS; ++i) {
- struct obj_symbol *sym;
- for (sym = f->symtab[i]; sym; sym = sym->next)
- if (ELFW(ST_BIND) (sym->info) != STB_LOCAL
- && sym->secidx <= SHN_HIRESERVE)
- {
- sym->ksymidx = nsyms++;
- strsize += strlen(sym->name) + 1;
- }
- }
- }
-
- total = (sizeof(struct old_symbol_table)
- + nsyms * sizeof(struct old_module_symbol)
- + n_ext_modules_used * sizeof(struct old_module_ref)
- + strsize);
- symtab = xmalloc(total);
- symtab->size = total;
- symtab->n_symbols = nsyms;
- symtab->n_refs = n_ext_modules_used;
-
- if (flag_export && nsyms) {
- struct old_module_symbol *ksym;
- char *str;
- int i;
-
- ksym = symtab->symbol;
- str = ((char *) ksym + nsyms * sizeof(struct old_module_symbol)
- + n_ext_modules_used * sizeof(struct old_module_ref));
-
- for (i = 0; i < HASH_BUCKETS; ++i) {
- struct obj_symbol *sym;
- for (sym = f->symtab[i]; sym; sym = sym->next)
- if (sym->ksymidx >= 0) {
- ksym->addr = obj_symbol_final_value(f, sym);
- ksym->name =
- (unsigned long) str - (unsigned long) symtab;
-
- strcpy(str, sym->name);
- str += strlen(sym->name) + 1;
- ksym++;
- }
- }
- }
-
- if (n_ext_modules_used) {
- struct old_module_ref *ref;
- int i;
-
- ref = (struct old_module_ref *)
- ((char *) symtab->symbol + nsyms * sizeof(struct old_module_symbol));
+#endif /* SYMBOL_PREFIX */
- for (i = 0; i < n_ext_modules; ++i)
- if (ext_modules[i].used)
- ref++->module = ext_modules[i].addr;
+ sym = obj_find_symbol(f, name);
+ if (sym && !(ELF_ST_BIND(sym->info) == STB_LOCAL)) {
+#ifdef SYMBOL_PREFIX
+ /* Put NAME_BUF into more permanent storage. */
+ name = xmalloc (name_size);
+ strcpy (name, name_buf);
+#endif
+ sym = obj_add_symbol(f, name, -1,
+ ELF_ST_INFO(STB_GLOBAL,
+ STT_NOTYPE),
+ idx, s->value, 0);
+ /* Did our symbol just get installed? If so, mark the
+ module as "used". */
+ if (sym->secidx == idx)
+ used = 1;
}
}
- /* Fill in routines. */
+ return used;
+}
- routines.init =
- obj_symbol_final_value(f, obj_find_symbol(f, SPFX "init_module"));
- routines.cleanup =
- obj_symbol_final_value(f, obj_find_symbol(f, SPFX "cleanup_module"));
+static void add_kernel_symbols(struct obj_file *f)
+{
+ struct external_module *m;
+ int i, nused = 0;
- /* Whew! All of the initialization is complete. Collect the final
- module image and give it to the kernel. */
+ /* Add module symbols first. */
- image = xmalloc(m_size);
- obj_create_image(f, image);
+ for (i = 0, m = ext_modules; i < n_ext_modules; ++i, ++m)
+ if (m->nsyms
+ && add_symbols_from(f, SHN_HIRESERVE + 2 + i, m->syms,
+ m->nsyms)) m->used = 1, ++nused;
- /* image holds the complete relocated module, accounting correctly for
- mod_use_count. However the old module kernel support assume that
- it is receiving something which does not contain mod_use_count. */
- ret = old_sys_init_module(m_name, image + sizeof(long),
- m_size | (flag_autoclean ? OLD_MOD_AUTOCLEAN
- : 0), &routines, symtab);
- if (ret)
- perror_msg("init_module: %s", m_name);
+ n_ext_modules_used = nused;
- free(image);
- free(symtab);
+ /* And finally the symbols from the kernel proper. */
- return ret == 0;
+ if (nksyms)
+ add_symbols_from(f, SHN_HIRESERVE + 1, ksyms, nksyms);
}
-#else
-
-#define old_create_mod_use_count(x) TRUE
-#define old_init_module(x, y, z) TRUE
+static char *get_modinfo_value(struct obj_file *f, const char *key)
+{
+ struct obj_section *sec;
+ char *p, *v, *n, *ep;
+ size_t klen = strlen(key);
-#endif /* CONFIG_FEATURE_OLD_MODULE_INTERFACE */
+ sec = obj_find_section(f, ".modinfo");
+ if (sec == NULL)
+ return NULL;
+ p = sec->contents;
+ ep = p + sec->header.sh_size;
+ while (p < ep) {
+ v = strchr(p, '=');
+ n = strchr(p, '\0');
+ if (v) {
+ if (p + klen == v && strncmp(p, key, klen) == 0)
+ return v + 1;
+ } else {
+ if (p + klen == n && strcmp(p, key) == 0)
+ return n;
+ }
+ p = n + 1;
+ }
+ return NULL;
+}
/*======================================================================*/
if ((q = strchr(p, '=')) == NULL) {
argc--;
continue;
- }
+ }
key = alloca(q - p + 6);
memcpy(key, "parm_", 5);
p = get_modinfo_value(f, key);
key += 5;
if (p == NULL) {
- error_msg("invalid parameter %s", key);
+ bb_error_msg("invalid parameter %s", key);
return 0;
}
/* Also check that the parameter was not resolved from the kernel. */
if (sym == NULL || sym->secidx > SHN_HIRESERVE) {
- error_msg("symbol for parameter %s not found", key);
+ bb_error_msg("symbol for parameter %s not found", key);
return 0;
}
str = alloca(strlen(q));
for (r = str, q++; *q != '"'; ++q, ++r) {
if (*q == '\0') {
- error_msg("improperly terminated string argument for %s",
+ bb_error_msg("improperly terminated string argument for %s",
key);
return 0;
} else if (*q == '\\')
switch (*++q) {
- case 'a':
- *r = '\a';
- break;
- case 'b':
- *r = '\b';
- break;
- case 'e':
- *r = '\033';
- break;
- case 'f':
- *r = '\f';
- break;
- case 'n':
- *r = '\n';
- break;
- case 'r':
- *r = '\r';
- break;
- case 't':
- *r = '\t';
- break;
-
- case '0':
- case '1':
- case '2':
- case '3':
- case '4':
- case '5':
- case '6':
- case '7':
- {
- int c = *q - '0';
- if (q[1] >= '0' && q[1] <= '7') {
- c = (c * 8) + *++q - '0';
- if (q[1] >= '0' && q[1] <= '7')
+ case 'a':
+ *r = '\a';
+ break;
+ case 'b':
+ *r = '\b';
+ break;
+ case 'e':
+ *r = '\033';
+ break;
+ case 'f':
+ *r = '\f';
+ break;
+ case 'n':
+ *r = '\n';
+ break;
+ case 'r':
+ *r = '\r';
+ break;
+ case 't':
+ *r = '\t';
+ break;
+
+ case '0':
+ case '1':
+ case '2':
+ case '3':
+ case '4':
+ case '5':
+ case '6':
+ case '7':
+ {
+ int c = *q - '0';
+ if (q[1] >= '0' && q[1] <= '7') {
c = (c * 8) + *++q - '0';
+ if (q[1] >= '0' && q[1] <= '7')
+ c = (c * 8) + *++q - '0';
+ }
+ *r = c;
}
- *r = c;
- }
- break;
+ break;
- default:
+ default:
+ *r = *q;
+ break;
+ } else
*r = *q;
- break;
- } else
- *r = *q;
}
*r = '\0';
++q;
str = alloca(r - q + 1);
memcpy(str, q, r - q);
- /* I don't know if it is usefull, as the previous case
- doesn't null terminate the string ??? */
+ /* I don't know if it is useful, as the previous case
+ doesn't nul terminate the string ??? */
str[r - q] = '\0';
/* Keep next fields */
/* Get the size of each member */
/* Probably we should do that outside the loop ? */
if (!isdigit(*(p + 1))) {
- error_msg("parameter type 'c' for %s must be followed by"
+ bb_error_msg("parameter type 'c' for %s must be followed by"
" the maximum size", key);
return 0;
}
/* Check length */
if (strlen(str) >= charssize) {
- error_msg("string too long for %s (max %ld)", key,
+ bb_error_msg("string too long for %s (max %ld)", key,
charssize - 1);
return 0;
}
} else {
long v = strtoul(q, &q, 0);
switch (*p) {
- case 'b':
- *loc++ = v;
- break;
- case 'h':
- *(short *) loc = v;
- loc += tgt_sizeof_short;
- break;
- case 'i':
- *(int *) loc = v;
- loc += tgt_sizeof_int;
- break;
- case 'l':
- *(long *) loc = v;
- loc += tgt_sizeof_long;
- break;
+ case 'b':
+ *loc++ = v;
+ break;
+ case 'h':
+ *(short *) loc = v;
+ loc += tgt_sizeof_short;
+ break;
+ case 'i':
+ *(int *) loc = v;
+ loc += tgt_sizeof_int;
+ break;
+ case 'l':
+ *(long *) loc = v;
+ loc += tgt_sizeof_long;
+ break;
- default:
- error_msg("unknown parameter type '%c' for %s", *p, key);
- return 0;
+ default:
+ bb_error_msg("unknown parameter type '%c' for %s", *p, key);
+ return 0;
}
}
- retry_end_of_value:
+retry_end_of_value:
switch (*q) {
- case '\0':
- goto end_of_arg;
-
- case ' ':
- case '\t':
- case '\n':
- case '\r':
- ++q;
- goto retry_end_of_value;
-
- case ',':
- if (++n > max) {
- error_msg("too many values for %s (max %d)", key, max);
- return 0;
- }
- ++q;
- break;
+ case '\0':
+ goto end_of_arg;
- default:
- error_msg("invalid argument syntax for %s", key);
- return 0;
+ case ' ':
+ case '\t':
+ case '\n':
+ case '\r':
+ ++q;
+ goto retry_end_of_value;
+
+ case ',':
+ if (++n > max) {
+ bb_error_msg("too many values for %s (max %d)", key, max);
+ return 0;
+ }
+ ++q;
+ break;
+
+ default:
+ bb_error_msg("invalid argument syntax for %s", key);
+ return 0;
}
}
- end_of_arg:
+end_of_arg:
if (n < min) {
- error_msg("too few values for %s (min %d)", key, min);
+ bb_error_msg("too few values for %s (min %d)", key, min);
return 0;
}
#endif /* CONFIG_FEATURE_INSMOD_VERSION_CHECKING */
-#ifdef CONFIG_FEATURE_NEW_MODULE_INTERFACE
-
/* Fetch the loaded modules, and all currently exported symbols. */
static int new_get_kernel_symbols(void)
/* Collect the loaded modules. */
module_names = xmalloc(bufsize = 256);
- retry_modules_load:
+retry_modules_load:
if (query_module(NULL, QM_MODULES, module_names, bufsize, &ret)) {
if (errno == ENOSPC && bufsize < ret) {
module_names = xrealloc(module_names, bufsize = ret);
goto retry_modules_load;
}
- perror_msg("QM_MODULES");
+ bb_perror_msg("QM_MODULES");
return 0;
}
ext_modules = modules = xmalloc(nmod * sizeof(*modules));
memset(modules, 0, nmod * sizeof(*modules));
for (i = 0, mn = module_names, m = modules;
- i < nmod; ++i, ++m, mn += strlen(mn) + 1) {
+ i < nmod; ++i, ++m, mn += strlen(mn) + 1) {
struct new_module_info info;
-
+
if (query_module(mn, QM_INFO, &info, sizeof(info), &ret)) {
if (errno == ENOENT) {
/* The module was removed out from underneath us. */
continue;
}
- perror_msg("query_module: QM_INFO: %s", mn);
+ bb_perror_msg("query_module: QM_INFO: %s", mn);
return 0;
}
-
+
syms = xmalloc(bufsize = 1024);
- retry_mod_sym_load:
+retry_mod_sym_load:
if (query_module(mn, QM_SYMBOLS, syms, bufsize, &ret)) {
switch (errno) {
- case ENOSPC:
- syms = xrealloc(syms, bufsize = ret);
- goto retry_mod_sym_load;
- case ENOENT:
- /* The module was removed out from underneath us. */
- continue;
- default:
- perror_msg("query_module: QM_SYMBOLS: %s", mn);
- return 0;
+ case ENOSPC:
+ syms = xrealloc(syms, bufsize = ret);
+ goto retry_mod_sym_load;
+ case ENOENT:
+ /* The module was removed out from underneath us. */
+ continue;
+ default:
+ bb_perror_msg("query_module: QM_SYMBOLS: %s", mn);
+ return 0;
}
}
nsyms = ret;
-
+
m->name = mn;
m->addr = info.addr;
m->nsyms = nsyms;
m->syms = syms;
-
+
for (j = 0, s = syms; j < nsyms; ++j, ++s) {
s->name += (unsigned long) syms;
}
/* Collect the kernel's symbols. */
syms = xmalloc(bufsize = 16 * 1024);
- retry_kern_sym_load:
+retry_kern_sym_load:
if (query_module(NULL, QM_SYMBOLS, syms, bufsize, &ret)) {
if (errno == ENOSPC && bufsize < ret) {
syms = xrealloc(syms, bufsize = ret);
goto retry_kern_sym_load;
}
- perror_msg("kernel: QM_SYMBOLS");
+ bb_perror_msg("kernel: QM_SYMBOLS");
return 0;
}
nksyms = nsyms = ret;
struct obj_section *sec;
sec = obj_create_alloced_section_first(f, ".this", tgt_sizeof_long,
- sizeof(struct new_module));
+ sizeof(struct new_module));
memset(sec->contents, 0, sizeof(struct new_module));
obj_add_symbol(f, SPFX "__this_module", -1,
- ELFW(ST_INFO) (STB_LOCAL, STT_OBJECT), sec->idx, 0,
- sizeof(struct new_module));
+ ELF_ST_INFO(STB_LOCAL, STT_OBJECT), sec->idx, 0,
+ sizeof(struct new_module));
obj_string_patch(f, sec->idx, offsetof(struct new_module, name),
- m_name);
+ m_name);
return 1;
}
}
if (!sec)
sec = obj_create_alloced_section(f, "__ksymtab",
- tgt_sizeof_void_p, 0);
+ tgt_sizeof_void_p, 0);
if (!sec)
return;
sec->header.sh_flags |= SHF_ALLOC;
sec->header.sh_addralign = tgt_sizeof_void_p; /* Empty section might
- be byte-aligned */
+ be byte-aligned */
ofs = sec->header.sh_size;
obj_symbol_patch(f, sec->idx, ofs, sym);
obj_string_patch(f, sec->idx, ofs + tgt_sizeof_void_p, sym->name);
struct obj_symbol *tm;
sec = obj_create_alloced_section(f, ".kmodtab", tgt_sizeof_void_p,
- (sizeof(struct new_module_ref)
- * n_ext_modules_used));
+ (sizeof(struct new_module_ref)
+ * n_ext_modules_used));
if (!sec)
return 0;
if (ext_modules[i].used) {
dep->dep = ext_modules[i].addr;
obj_symbol_patch(f, sec->idx,
- (char *) &dep->ref - sec->contents, tm);
+ (char *) &dep->ref - sec->contents, tm);
dep->next_ref = 0;
++dep;
}
sec =
obj_create_alloced_section(f, "__ksymtab", tgt_sizeof_void_p,
- 0);
+ 0);
/* We don't want to export symbols residing in sections that
aren't loaded. There are a number of these created so that
for (nsyms = i = 0; i < HASH_BUCKETS; ++i) {
struct obj_symbol *sym;
for (sym = f->symtab[i]; sym; sym = sym->next)
- if (ELFW(ST_BIND) (sym->info) != STB_LOCAL
- && sym->secidx <= SHN_HIRESERVE
- && (sym->secidx >= SHN_LORESERVE
- || loaded[sym->secidx])) {
+ if (ELF_ST_BIND(sym->info) != STB_LOCAL
+ && sym->secidx <= SHN_HIRESERVE
+ && (sym->secidx >= SHN_LORESERVE
+ || loaded[sym->secidx])) {
ElfW(Addr) ofs = nsyms * 2 * tgt_sizeof_void_p;
obj_symbol_patch(f, sec->idx, ofs, sym);
obj_string_patch(f, sec->idx, ofs + tgt_sizeof_void_p,
- sym->name);
+ sym->name);
nsyms++;
}
static int
-new_init_module(const char *m_name, struct obj_file *f,
- unsigned long m_size)
+new_init_module(const char *m_name, struct obj_file *f, unsigned long m_size)
{
struct new_module *module;
struct obj_section *sec;
tgt_long m_addr;
sec = obj_find_section(f, ".this");
- if (!sec || !sec->contents) {
- perror_msg_and_die("corrupt module %s?",m_name);
+ if (!sec || !sec->contents) {
+ bb_perror_msg_and_die("corrupt module %s?",m_name);
}
module = (struct new_module *) sec->contents;
m_addr = sec->header.sh_addr;
sec = obj_find_section(f, ".data.init");
if (sec) {
if (!module->runsize ||
- module->runsize > sec->header.sh_addr - m_addr)
- module->runsize = sec->header.sh_addr - m_addr;
+ module->runsize > sec->header.sh_addr - m_addr)
+ module->runsize = sec->header.sh_addr - m_addr;
}
sec = obj_find_section(f, ARCHDATA_SEC_NAME);
if (sec && sec->header.sh_size) {
module->kallsyms_end = module->kallsyms_start + sec->header.sh_size;
}
- if (!arch_init_module(f, module))
- return 0;
-
/* Whew! All of the initialization is complete. Collect the final
module image and give it to the kernel. */
image = xmalloc(m_size);
obj_create_image(f, image);
- ret = new_sys_init_module(m_name, (struct new_module *) image);
+ ret = init_module(m_name, (struct new_module *) image);
if (ret)
- perror_msg("init_module: %s", m_name);
+ bb_perror_msg("init_module: %s", m_name);
free(image);
return ret == 0;
}
-#else
-
-#define new_init_module(x, y, z) TRUE
-#define new_create_this_module(x, y) 0
-#define new_add_ksymtab(x, y) -1
-#define new_create_module_ksymtab(x)
-#define query_module(v, w, x, y, z) -1
-
-#endif /* CONFIG_FEATURE_NEW_MODULE_INTERFACE */
-
/*======================================================================*/
return 1;
}
-#ifdef CONFIG_FEATURE_NEW_MODULE_INTERFACE
static int
obj_symbol_patch(struct obj_file *f, int secidx, ElfW(Addr) offset,
struct obj_symbol *sym)
return 1;
}
-#endif
static int obj_check_undefineds(struct obj_file *f)
{
struct obj_symbol *sym;
for (sym = f->symtab[i]; sym; sym = sym->next)
if (sym->secidx == SHN_UNDEF) {
- if (ELFW(ST_BIND) (sym->info) == STB_WEAK) {
+ if (ELF_ST_BIND(sym->info) == STB_WEAK) {
sym->secidx = SHN_ABS;
sym->value = 0;
} else {
if (!flag_quiet) {
- error_msg("unresolved symbol %s", sym->name);
+ bb_error_msg("unresolved symbol %s", sym->name);
}
ret = 0;
}
struct obj_section *s = f->sections[i];
if (s->header.sh_type == SHT_NOBITS) {
if (s->header.sh_size != 0)
- s->contents = memset(xmalloc(s->header.sh_size),
- 0, s->header.sh_size);
+ s->contents = memset(xmalloc(s->header.sh_size),
+ 0, s->header.sh_size);
else
s->contents = NULL;
/* Attempt to find a value to use for this relocation. */
- symndx = ELFW(R_SYM) (rel->r_info);
+ symndx = ELF_R_SYM(rel->r_info);
if (symndx) {
/* Note we've already checked for undefined symbols. */
extsym = &symtab[symndx];
- if (ELFW(ST_BIND) (extsym->st_info) == STB_LOCAL) {
+ if (ELF_ST_BIND(extsym->st_info) == STB_LOCAL) {
/* Local symbols we look up in the local table to be sure
we get the one that is really intended. */
intsym = f->local_symtab[symndx];
#if defined(__alpha__) && defined(AXP_BROKEN_GAS)
/* Work around a nasty GAS bug, that is fixed as of 2.7.0.9. */
if (!extsym || !extsym->st_name ||
- ELFW(ST_BIND) (extsym->st_info) != STB_LOCAL)
+ ELF_ST_BIND(extsym->st_info) != STB_LOCAL)
#endif
value += rel->r_addend;
#endif
/* Do it! */
switch (arch_apply_relocation
(f, targsec, symsec, intsym, rel, value)) {
- case obj_reloc_ok:
- break;
+ case obj_reloc_ok:
+ break;
- case obj_reloc_overflow:
- errmsg = "Relocation overflow";
- goto bad_reloc;
- case obj_reloc_dangerous:
- errmsg = "Dangerous relocation";
- goto bad_reloc;
- case obj_reloc_unhandled:
- errmsg = "Unhandled relocation";
- bad_reloc:
- if (extsym) {
- error_msg("%s of type %ld for %s", errmsg,
- (long) ELFW(R_TYPE) (rel->r_info),
- strtab + extsym->st_name);
- } else {
- error_msg("%s of type %ld", errmsg,
- (long) ELFW(R_TYPE) (rel->r_info));
- }
- ret = 0;
- break;
+ case obj_reloc_overflow:
+ errmsg = "Relocation overflow";
+ goto bad_reloc;
+ case obj_reloc_dangerous:
+ errmsg = "Dangerous relocation";
+ goto bad_reloc;
+ case obj_reloc_unhandled:
+ errmsg = "Unhandled relocation";
+bad_reloc:
+ if (extsym) {
+ bb_error_msg("%s of type %ld for %s", errmsg,
+ (long) ELF_R_TYPE(rel->r_info),
+ strtab + extsym->st_name);
+ } else {
+ bb_error_msg("%s of type %ld", errmsg,
+ (long) ELF_R_TYPE(rel->r_info));
+ }
+ ret = 0;
+ break;
}
}
}
fseek(fp, 0, SEEK_SET);
if (fread(&f->header, sizeof(f->header), 1, fp) != 1) {
- perror_msg("error reading ELF header");
+ bb_perror_msg("error reading ELF header");
return NULL;
}
if (f->header.e_ident[EI_MAG0] != ELFMAG0
- || f->header.e_ident[EI_MAG1] != ELFMAG1
- || f->header.e_ident[EI_MAG2] != ELFMAG2
- || f->header.e_ident[EI_MAG3] != ELFMAG3) {
- error_msg("not an ELF file");
+ || f->header.e_ident[EI_MAG1] != ELFMAG1
+ || f->header.e_ident[EI_MAG2] != ELFMAG2
+ || f->header.e_ident[EI_MAG3] != ELFMAG3) {
+ bb_error_msg("not an ELF file");
return NULL;
}
if (f->header.e_ident[EI_CLASS] != ELFCLASSM
- || f->header.e_ident[EI_DATA] != ELFDATAM
- || f->header.e_ident[EI_VERSION] != EV_CURRENT
- || !MATCH_MACHINE(f->header.e_machine)) {
- error_msg("ELF file not for this architecture");
+ || f->header.e_ident[EI_DATA] != ELFDATAM
+ || f->header.e_ident[EI_VERSION] != EV_CURRENT
+ || !MATCH_MACHINE(f->header.e_machine)) {
+ bb_error_msg("ELF file not for this architecture");
return NULL;
}
if (f->header.e_type != ET_REL) {
- error_msg("ELF file not a relocatable object");
+ bb_error_msg("ELF file not a relocatable object");
return NULL;
}
/* Read the section headers. */
if (f->header.e_shentsize != sizeof(ElfW(Shdr))) {
- error_msg("section header size mismatch: %lu != %lu",
+ bb_error_msg("section header size mismatch: %lu != %lu",
(unsigned long) f->header.e_shentsize,
(unsigned long) sizeof(ElfW(Shdr)));
return NULL;
section_headers = alloca(sizeof(ElfW(Shdr)) * shnum);
fseek(fp, f->header.e_shoff, SEEK_SET);
if (fread(section_headers, sizeof(ElfW(Shdr)), shnum, fp) != shnum) {
- perror_msg("error reading ELF section headers");
+ bb_perror_msg("error reading ELF section headers");
return NULL;
}
sec->idx = i;
if(sec->header.sh_size) switch (sec->header.sh_type) {
- case SHT_NULL:
- case SHT_NOTE:
- case SHT_NOBITS:
- /* ignore */
- break;
+ case SHT_NULL:
+ case SHT_NOTE:
+ case SHT_NOBITS:
+ /* ignore */
+ break;
- case SHT_PROGBITS:
+ case SHT_PROGBITS:
#if LOADBITS
- if (!loadprogbits) {
- sec->contents = NULL;
- break;
- }
-#endif
- case SHT_SYMTAB:
- case SHT_STRTAB:
- case SHT_RELM:
- if (sec->header.sh_size > 0) {
- sec->contents = xmalloc(sec->header.sh_size);
- fseek(fp, sec->header.sh_offset, SEEK_SET);
- if (fread(sec->contents, sec->header.sh_size, 1, fp) != 1) {
- perror_msg("error reading ELF section data");
- return NULL;
+ if (!loadprogbits) {
+ sec->contents = NULL;
+ break;
}
- } else {
- sec->contents = NULL;
- }
- break;
+#endif
+ case SHT_SYMTAB:
+ case SHT_STRTAB:
+ case SHT_RELM:
+ if (sec->header.sh_size > 0) {
+ sec->contents = xmalloc(sec->header.sh_size);
+ fseek(fp, sec->header.sh_offset, SEEK_SET);
+ if (fread(sec->contents, sec->header.sh_size, 1, fp) != 1) {
+ bb_perror_msg("error reading ELF section data");
+ return NULL;
+ }
+ } else {
+ sec->contents = NULL;
+ }
+ break;
#if SHT_RELM == SHT_REL
- case SHT_RELA:
- error_msg("RELA relocations not supported on this architecture");
- return NULL;
+ case SHT_RELA:
+ bb_error_msg("RELA relocations not supported on this architecture");
+ return NULL;
#else
- case SHT_REL:
- error_msg("REL relocations not supported on this architecture");
- return NULL;
+ case SHT_REL:
+ bb_error_msg("REL relocations not supported on this architecture");
+ return NULL;
#endif
- default:
- if (sec->header.sh_type >= SHT_LOPROC) {
- /* Assume processor specific section types are debug
- info and can safely be ignored. If this is ever not
- the case (Hello MIPS?), don't put ifdefs here but
- create an arch_load_proc_section(). */
- break;
- }
+ default:
+ if (sec->header.sh_type >= SHT_LOPROC) {
+ /* Assume processor specific section types are debug
+ info and can safely be ignored. If this is ever not
+ the case (Hello MIPS?), don't put ifdefs here but
+ create an arch_load_proc_section(). */
+ break;
+ }
- error_msg("can't handle sections of type %ld",
- (long) sec->header.sh_type);
- return NULL;
+ bb_error_msg("can't handle sections of type %ld",
+ (long) sec->header.sh_type);
+ return NULL;
}
}
obj_insert_section_load_order(f, sec);
switch (sec->header.sh_type) {
- case SHT_SYMTAB:
- {
- unsigned long nsym, j;
- char *strtab;
- ElfW(Sym) * sym;
-
- if (sec->header.sh_entsize != sizeof(ElfW(Sym))) {
- error_msg("symbol size mismatch: %lu != %lu",
- (unsigned long) sec->header.sh_entsize,
- (unsigned long) sizeof(ElfW(Sym)));
- return NULL;
- }
-
- nsym = sec->header.sh_size / sizeof(ElfW(Sym));
- strtab = f->sections[sec->header.sh_link]->contents;
- sym = (ElfW(Sym) *) sec->contents;
-
- /* Allocate space for a table of local symbols. */
- j = f->local_symtab_size = sec->header.sh_info;
- f->local_symtab = xcalloc(j, sizeof(struct obj_symbol *));
+ case SHT_SYMTAB:
+ {
+ unsigned long nsym, j;
+ char *strtab;
+ ElfW(Sym) * sym;
+
+ if (sec->header.sh_entsize != sizeof(ElfW(Sym))) {
+ bb_error_msg("symbol size mismatch: %lu != %lu",
+ (unsigned long) sec->header.sh_entsize,
+ (unsigned long) sizeof(ElfW(Sym)));
+ return NULL;
+ }
- /* 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
- name = f->sections[sym->st_shndx]->name;
+ nsym = sec->header.sh_size / sizeof(ElfW(Sym));
+ strtab = f->sections[sec->header.sh_link]->contents;
+ sym = (ElfW(Sym) *) sec->contents;
+
+ /* Allocate space for a table of local symbols. */
+ j = f->local_symtab_size = sec->header.sh_info;
+ f->local_symtab = xcalloc(j, sizeof(struct obj_symbol *));
+
+ /* Insert all symbols into the hash table. */
+ for (j = 1, ++sym; j < nsym; ++j, ++sym) {
+ ElfW(Addr) val = sym->st_value;
+ const char *name;
+ if (sym->st_name)
+ name = strtab + sym->st_name;
+ else if (sym->st_shndx < shnum)
+ name = f->sections[sym->st_shndx]->name;
+ else
+ continue;
+
+#if defined(__SH5__)
+ /*
+ * For sh64 it is possible that the target of a branch
+ * requires a mode switch (32 to 16 and back again).
+ *
+ * This is implied by the lsb being set in the target
+ * address for SHmedia mode and clear for SHcompact.
+ */
+ val |= sym->st_other & 4;
+#endif
- obj_add_symbol(f, name, j, sym->st_info, sym->st_shndx,
- sym->st_value, sym->st_size);
+ obj_add_symbol(f, name, j, sym->st_info, sym->st_shndx,
+ val, sym->st_size);
+ }
}
- }
- break;
+ break;
- case SHT_RELM:
- if (sec->header.sh_entsize != sizeof(ElfW(RelM))) {
- error_msg("relocation entry size mismatch: %lu != %lu",
- (unsigned long) sec->header.sh_entsize,
- (unsigned long) sizeof(ElfW(RelM)));
- 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(). */
+ case SHT_RELM:
+ if (sec->header.sh_entsize != sizeof(ElfW(RelM))) {
+ bb_error_msg("relocation entry size mismatch: %lu != %lu",
+ (unsigned long) sec->header.sh_entsize,
+ (unsigned long) sizeof(ElfW(RelM)));
+ 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(). */
}
}
{
ElfW(Addr) base = f->baseaddr;
struct obj_section* sec;
-
+
for (sec = f->load_order; sec; sec = sec->load_next) {
/* section already loaded? */
if (sec->contents != NULL)
continue;
-
+
if (sec->header.sh_size == 0)
continue;
sec->contents = imagebase + (sec->header.sh_addr - base);
fseek(fp, sec->header.sh_offset, SEEK_SET);
if (fread(sec->contents, sec->header.sh_size, 1, fp) != 1) {
- error_msg("error reading ELF section data: %s\n", strerror(errno));
+ bb_error_msg("error reading ELF section data: %s\n", strerror(errno));
return 0;
}
for (p = specials; *p; ++p)
if ((sym = obj_find_symbol(f, *p)) != NULL)
sym->info =
- ELFW(ST_INFO) (STB_LOCAL, ELFW(ST_TYPE) (sym->info));
+ ELF_ST_INFO(STB_LOCAL, ELF_ST_TYPE(sym->info));
}
+
#ifdef CONFIG_FEATURE_CHECK_TAINTED_MODULE
static int obj_gpl_license(struct obj_file *f, const char **license)
{
#define TAINT_UNSAFE_SMP (1<<2)
#define TAINT_URL "http://www.tux.org/lkml/#export-tainted"
-static void set_tainted(struct obj_file *f, int fd, char *m_name,
+static void set_tainted(struct obj_file *f, int fd, char *m_name,
int kernel_has_tainted, int taint, const char *text1, const char *text2)
{
char buf[80];
get_module_version(struct obj_file *f, char str[STRVERSIONLEN])
{
#ifdef CONFIG_FEATURE_INSMOD_VERSION_CHECKING
- if (get_modinfo_value(f, "kernel_version") == NULL)
- return old_get_module_version(f, str);
- else
- return new_get_module_version(f, str);
+ return new_get_module_version(f, str);
#else /* CONFIG_FEATURE_INSMOD_VERSION_CHECKING */
- strncpy(str, "???", sizeof(str));
- return -1;
+ strncpy(str, "???", sizeof(str));
+ return -1;
#endif /* CONFIG_FEATURE_INSMOD_VERSION_CHECKING */
}
* start of some sections. this info is used by ksymoops to do better
* debugging.
*/
-static void
+static void
add_ksymoops_symbols(struct obj_file *f, const char *filename,
const char *m_name)
{
".text",
".rodata",
".data",
- ".bss"
+ ".bss",
".sbss"
};
if (realpath(filename, real)) {
- absolute_filename = xstrdup(real);
+ absolute_filename = bb_xstrdup(real);
}
else {
int save_errno = errno;
- error_msg("cannot get realpath for %s", filename);
+ bb_error_msg("cannot get realpath for %s", filename);
errno = save_errno;
perror("");
- absolute_filename = xstrdup(filename);
+ absolute_filename = bb_xstrdup(filename);
}
lm_name = strlen(m_name);
* one symbol is less readable but saves kernel space.
*/
l = sizeof(symprefix)+ /* "__insmod_" */
- lm_name+ /* module name */
- 2+ /* "_O" */
- lfilename+ /* object filename */
- 2+ /* "_M" */
- 2*sizeof(statbuf.st_mtime)+ /* mtime in hex */
- 2+ /* "_V" */
- 8+ /* version in dec */
- 1; /* nul */
+ lm_name+ /* module name */
+ 2+ /* "_O" */
+ lfilename+ /* object filename */
+ 2+ /* "_M" */
+ 2*sizeof(statbuf.st_mtime)+ /* mtime in hex */
+ 2+ /* "_V" */
+ 8+ /* version in dec */
+ 1; /* nul */
name = xmalloc(l);
if (stat(absolute_filename, &statbuf) != 0)
statbuf.st_mtime = 0;
version = get_module_version(f, str); /* -1 if not found */
snprintf(name, l, "%s%s_O%s_M%0*lX_V%d",
- symprefix, m_name, absolute_filename,
- (int)(2*sizeof(statbuf.st_mtime)), statbuf.st_mtime,
- version);
+ symprefix, m_name, absolute_filename,
+ (int)(2*sizeof(statbuf.st_mtime)), statbuf.st_mtime,
+ version);
sym = obj_add_symbol(f, name, -1,
- ELFW(ST_INFO) (STB_GLOBAL, STT_NOTYPE),
- sec->idx, sec->header.sh_addr, 0);
+ ELF_ST_INFO(STB_GLOBAL, STT_NOTYPE),
+ sec->idx, sec->header.sh_addr, 0);
if (use_ksymtab)
- new_add_ksymtab(f, sym);
+ new_add_ksymtab(f, sym);
}
free(absolute_filename);
#ifdef _NOT_SUPPORTED_
1; /* nul */
name = xmalloc(l);
snprintf(name, l, "%s%s_P%s",
- symprefix, m_name, f->persist);
- sym = obj_add_symbol(f, name, -1, ELFW(ST_INFO) (STB_GLOBAL, STT_NOTYPE),
- sec->idx, sec->header.sh_addr, 0);
+ symprefix, m_name, f->persist);
+ sym = obj_add_symbol(f, name, -1, ELF_ST_INFO(STB_GLOBAL, STT_NOTYPE),
+ sec->idx, sec->header.sh_addr, 0);
if (use_ksymtab)
- new_add_ksymtab(f, sym);
+ new_add_ksymtab(f, sym);
}
#endif /* _NOT_SUPPORTED_ */
/* tag the desired sections if size is non-zero */
for (i = 0; i < sizeof(section_names)/sizeof(section_names[0]); ++i) {
if ((sec = obj_find_section(f, section_names[i])) &&
- sec->header.sh_size) {
+ sec->header.sh_size) {
l = sizeof(symprefix)+ /* "__insmod_" */
lm_name+ /* module name */
2+ /* "_S" */
1; /* nul */
name = xmalloc(l);
snprintf(name, l, "%s%s_S%s_L%ld",
- symprefix, m_name, sec->name,
- (long)sec->header.sh_size);
- sym = obj_add_symbol(f, name, -1, ELFW(ST_INFO) (STB_GLOBAL, STT_NOTYPE),
- sec->idx, sec->header.sh_addr, 0);
+ symprefix, m_name, sec->name,
+ (long)sec->header.sh_size);
+ sym = obj_add_symbol(f, name, -1, ELF_ST_INFO(STB_GLOBAL, STT_NOTYPE),
+ sec->idx, sec->header.sh_addr, 0);
if (use_ksymtab)
- new_add_ksymtab(f, sym);
+ new_add_ksymtab(f, sym);
}
}
}
value = sym->value + sec->header.sh_addr;
}
- if (ELFW(ST_BIND) (sym->info) == STB_LOCAL)
+ if (ELF_ST_BIND(sym->info) == STB_LOCAL)
type = tolower(type);
printf("%0*lx %c %s\n", (int) (2 * sizeof(void *)), value,
extern int insmod_main( int argc, char **argv)
{
int opt;
- int k_crcs;
- int k_new_syscalls;
int len;
+ int k_crcs;
char *tmp, *tmp1;
unsigned long m_size;
ElfW(Addr) m_addr;
#ifdef CONFIG_FEATURE_INSMOD_VERSION_CHECKING
struct utsname uts_info;
char m_strversion[STRVERSIONLEN];
- int m_version;
- int m_crcs;
+ int m_version, m_crcs;
#endif
#ifdef CONFIG_FEATURE_CLEAN_UP
FILE *fp = 0;
#ifdef CONFIG_FEATURE_INSMOD_LOAD_MAP
int flag_print_load_map = 0;
#endif
+ int k_version = 0;
+ struct utsname myuname;
/* Parse any options */
#ifdef CONFIG_FEATURE_INSMOD_LOAD_MAP
- while ((opt = getopt(argc, argv, "fkqsvxmLo:")) > 0) {
+ while ((opt = getopt(argc, argv, "fkqsvxmLo:")) > 0)
#else
- while ((opt = getopt(argc, argv, "fkqsvxLo:")) > 0) {
+ while ((opt = getopt(argc, argv, "fkqsvxLo:")) > 0)
#endif
- switch (opt) {
- case 'f': /* force loading */
- flag_force_load = 1;
- break;
- case 'k': /* module loaded by kerneld, auto-cleanable */
- flag_autoclean = 1;
- break;
- case 's': /* log to syslog */
- /* log to syslog -- not supported */
- /* but kernel needs this for request_module(), */
- /* as this calls: modprobe -k -s -- <module> */
- /* so silently ignore this flag */
- break;
- case 'v': /* verbose output */
- flag_verbose = 1;
- break;
- case 'q': /* silent */
- flag_quiet = 1;
- break;
- case 'x': /* do not export externs */
- flag_export = 0;
- break;
- case 'o': /* name the output module */
- free(m_name);
- m_name = xstrdup(optarg);
- break;
- case 'L': /* Stub warning */
- /* This is needed for compatibility with modprobe.
- * In theory, this does locking, but we don't do
- * that. So be careful and plan your life around not
- * loading the same module 50 times concurrently. */
- break;
+ {
+ switch (opt) {
+ case 'f': /* force loading */
+ flag_force_load = 1;
+ break;
+ case 'k': /* module loaded by kerneld, auto-cleanable */
+ flag_autoclean = 1;
+ break;
+ case 's': /* log to syslog */
+ /* log to syslog -- not supported */
+ /* but kernel needs this for request_module(), */
+ /* as this calls: modprobe -k -s -- <module> */
+ /* so silently ignore this flag */
+ break;
+ case 'v': /* verbose output */
+ flag_verbose = 1;
+ break;
+ case 'q': /* silent */
+ flag_quiet = 1;
+ break;
+ case 'x': /* do not export externs */
+ flag_export = 0;
+ break;
+ case 'o': /* name the output module */
+ free(m_name);
+ m_name = bb_xstrdup(optarg);
+ break;
+ case 'L': /* Stub warning */
+ /* This is needed for compatibility with modprobe.
+ * In theory, this does locking, but we don't do
+ * that. So be careful and plan your life around not
+ * loading the same module 50 times concurrently. */
+ break;
#ifdef CONFIG_FEATURE_INSMOD_LOAD_MAP
- case 'm': /* print module load map */
- flag_print_load_map = 1;
- break;
+ case 'm': /* print module load map */
+ flag_print_load_map = 1;
+ break;
#endif
- default:
- show_usage();
+ default:
+ bb_show_usage();
+ }
}
- }
-
+
if (argv[optind] == NULL) {
- show_usage();
+ bb_show_usage();
}
/* Grab the module name */
- tmp1 = xstrdup(argv[optind]);
+ tmp1 = bb_xstrdup(argv[optind]);
tmp = basename(tmp1);
len = strlen(tmp);
- if (len > 2 && tmp[len - 2] == '.' && tmp[len - 1] == 'o') {
- len-=2;
+ if (uname(&myuname) == 0) {
+ if (myuname.release[0] == '2') {
+ k_version = myuname.release[2] - '0';
+ }
+ }
+
+#if defined(CONFIG_FEATURE_2_6_MODULES)
+ if (k_version > 4 && len > 3 && tmp[len - 3] == '.' &&
+ tmp[len - 2] == 'k' && tmp[len - 1] == 'o') {
+ len-=3;
tmp[len] = '\0';
}
+ else
+#endif
+ if (len > 2 && tmp[len - 2] == '.' && tmp[len - 1] == 'o') {
+ len-=2;
+ tmp[len] = '\0';
+ }
+
- bb_asprintf(&m_fullName, "%s.o", tmp);
+#if defined(CONFIG_FEATURE_2_6_MODULES)
+ if (k_version > 4)
+ m_fullName = bb_xasprintf("%s.ko", tmp);
+ else
+#endif
+ m_fullName = bb_xasprintf("%s.o", tmp);
if (!m_name) {
m_name = tmp;
/* Get a filedesc for the module. Check we we have a complete path */
if (stat(argv[optind], &st) < 0 || !S_ISREG(st.st_mode) ||
(fp = fopen(argv[optind], "r")) == NULL) {
- struct utsname myuname;
-
/* Hmm. Could not open it. First search under /lib/modules/`uname -r`,
* but do not error out yet if we fail to find it... */
- if (uname(&myuname) == 0) {
- char *module_dir;
- char *tmdn;
+ if (k_version) { /* uname succeedd */
+ char *module_dir;
+ char *tmdn;
char real_module_dir[FILENAME_MAX];
- tmdn = concat_path_file(_PATH_MODULES, myuname.release);
+ tmdn = concat_path_file(_PATH_MODULES, myuname.release);
/* Jump through hoops in case /lib/modules/`uname -r`
* is a symlink. We do not want recursive_action to
* follow symlinks, but we do want to follow the
* /lib/modules/`uname -r` dir, So resolve it ourselves
* if it is a link... */
- if (realpath (tmdn, real_module_dir) == NULL)
- module_dir = tmdn;
- else
- module_dir = real_module_dir;
- recursive_action(module_dir, TRUE, FALSE, FALSE,
+ if (realpath (tmdn, real_module_dir) == NULL)
+ module_dir = tmdn;
+ else
+ module_dir = real_module_dir;
+ recursive_action(module_dir, TRUE, FALSE, FALSE,
check_module_name_match, 0, m_fullName);
- free(tmdn);
+ free(tmdn);
}
/* Check if we have found anything yet */
{
char module_dir[FILENAME_MAX];
- free(m_filename);
- m_filename = 0;
+ free(m_filename);
+ m_filename = 0;
if (realpath (_PATH_MODULES, module_dir) == NULL)
strcpy(module_dir, _PATH_MODULES);
/* No module found under /lib/modules/`uname -r`, this
* time cast the net a bit wider. Search /lib/modules/ */
if (! recursive_action(module_dir, TRUE, FALSE, FALSE,
- check_module_name_match, 0, m_fullName))
+ check_module_name_match, 0, m_fullName))
{
if (m_filename == 0
- || ((fp = fopen(m_filename, "r")) == NULL))
+ || ((fp = fopen(m_filename, "r")) == NULL))
{
- error_msg("%s: no module by that name found", m_fullName);
+ bb_error_msg("%s: no module by that name found", m_fullName);
goto out;
}
} else
- error_msg_and_die("%s: no module by that name found", m_fullName);
+ bb_error_msg_and_die("%s: no module by that name found", m_fullName);
}
- } else
- m_filename = xstrdup(argv[optind]);
+ } else
+ m_filename = bb_xstrdup(argv[optind]);
- printf("Using %s\n", m_filename);
+ if (!flag_quiet)
+ printf("Using %s\n", m_filename);
+
+#ifdef CONFIG_FEATURE_2_6_MODULES
+ if (k_version > 4)
+ {
+ optind--;
+ argv[optind + 1] = m_filename;
+ return insmod_ng_main(argc - optind, argv + optind);
+ }
+#endif
if ((f = obj_load(fp, LOADBITS)) == NULL)
- perror_msg_and_die("Could not load the module");
+ bb_perror_msg_and_die("Could not load the module");
if (get_modinfo_value(f, "kernel_version") == NULL)
m_has_modinfo = 0;
uts_info.release[0] = '\0';
if (m_has_modinfo) {
m_version = new_get_module_version(f, m_strversion);
- } else {
- m_version = old_get_module_version(f, m_strversion);
if (m_version == -1) {
- error_msg("couldn't find the kernel version the module was "
+ bb_error_msg("couldn't find the kernel version the module was "
"compiled for");
goto out;
}
if (strncmp(uts_info.release, m_strversion, STRVERSIONLEN) != 0) {
if (flag_force_load) {
- error_msg("Warning: kernel-module version mismatch\n"
+ bb_error_msg("Warning: kernel-module version mismatch\n"
"\t%s was compiled for kernel version %s\n"
"\twhile this kernel is version %s",
m_filename, m_strversion, uts_info.release);
} else {
- error_msg("kernel-module version mismatch\n"
+ bb_error_msg("kernel-module version mismatch\n"
"\t%s was compiled for kernel version %s\n"
"\twhile this kernel is version %s.",
m_filename, m_strversion, uts_info.release);
k_crcs = 0;
#endif /* CONFIG_FEATURE_INSMOD_VERSION_CHECKING */
- k_new_syscalls = !query_module(NULL, 0, NULL, 0, NULL);
-
- if (k_new_syscalls) {
-#ifdef CONFIG_FEATURE_NEW_MODULE_INTERFACE
+ if (!query_module(NULL, 0, NULL, 0, NULL)) {
if (!new_get_kernel_symbols())
goto out;
k_crcs = new_is_kernel_checksummed();
-#else
- error_msg("Not configured to support new kernels");
- goto out;
-#endif
} else {
-#ifdef CONFIG_FEATURE_OLD_MODULE_INTERFACE
- if (!old_get_kernel_symbols(m_name))
- goto out;
- k_crcs = old_is_kernel_checksummed();
-#else
- error_msg("Not configured to support old kernels");
+ bb_error_msg("Not configured to support old kernels");
goto out;
-#endif
}
#ifdef CONFIG_FEATURE_INSMOD_VERSION_CHECKING
+ m_crcs = 0;
if (m_has_modinfo)
m_crcs = new_is_module_checksummed(f);
- else
- m_crcs = old_is_module_checksummed(f);
if (m_crcs != k_crcs)
obj_set_symbol_compare(f, ncv_strcmp, ncv_symbol_hash);
/* Allocate common symbols, symbol tables, and string tables. */
- if (k_new_syscalls
- ? !new_create_this_module(f, m_name)
- : !old_create_mod_use_count(f))
+ if (!new_create_this_module(f, m_name))
{
goto out;
}
++optind;
if (optind < argc) {
- if (m_has_modinfo
- ? !new_process_module_arguments(f, argc - optind, argv + optind)
- : !old_process_module_arguments(f, argc - optind, argv + optind))
+ if (!new_process_module_arguments(f, argc - optind, argv + optind))
{
goto out;
}
add_ksymoops_symbols(f, m_filename, m_name);
#endif /* CONFIG_FEATURE_INSMOD_KSYMOOPS_SYMBOLS */
- if (k_new_syscalls)
- new_create_module_ksymtab(f);
+ new_create_module_ksymtab(f);
/* Find current size of the module */
m_size = obj_load_size(f);
m_addr = create_module(m_name, m_size);
if (m_addr == -1) switch (errno) {
- case EEXIST:
- error_msg("A module named %s already exists", m_name);
- goto out;
- case ENOMEM:
- error_msg("Can't allocate kernel memory for module; needed %lu bytes",
- m_size);
- goto out;
- default:
- perror_msg("create_module: %s", m_name);
- goto out;
+ case EEXIST:
+ bb_error_msg("A module named %s already exists", m_name);
+ goto out;
+ case ENOMEM:
+ bb_error_msg("Can't allocate kernel memory for module; needed %lu bytes",
+ m_size);
+ goto out;
+ default:
+ bb_perror_msg("create_module: %s", m_name);
+ goto out;
}
#if !LOADBITS
delete_module(m_name);
goto out;
}
-#endif
+#endif
if (!obj_relocate(f, m_addr)) {
delete_module(m_name);
goto out;
}
- if (k_new_syscalls
- ? !new_init_module(m_name, f, m_size)
- : !old_init_module(m_name, f, m_size))
+ if (!new_init_module(m_name, f, m_size))
{
delete_module(m_name);
goto out;
out:
#ifdef CONFIG_FEATURE_CLEAN_UP
if(fp)
- fclose(fp);
+ fclose(fp);
if(tmp1) {
free(tmp1);
} else {
#endif
return(exit_status);
}
+
+
+#endif
+
+
+#ifdef CONFIG_FEATURE_2_6_MODULES
+
+#include <sys/mman.h>
+#include <asm/unistd.h>
+#include <sys/syscall.h>
+
+/* We use error numbers in a loose translation... */
+static const char *moderror(int err)
+{
+ switch (err) {
+ case ENOEXEC:
+ return "Invalid module format";
+ case ENOENT:
+ return "Unknown symbol in module";
+ case ESRCH:
+ return "Module has wrong symbol version";
+ case EINVAL:
+ return "Invalid parameters";
+ default:
+ return strerror(err);
+ }
+}
+
+extern int insmod_ng_main( int argc, char **argv)
+{
+ int i;
+ int fd;
+ long int ret;
+ struct stat st;
+ unsigned long len;
+ void *map;
+ char *filename, *options = bb_xstrdup("");
+
+ filename = argv[1];
+ if (!filename) {
+ bb_show_usage();
+ return -1;
+ }
+
+ /* Rest is options */
+ for (i = 2; i < argc; i++) {
+ options = xrealloc(options, strlen(options) + 2 + strlen(argv[i]) + 2);
+ /* Spaces handled by "" pairs, but no way of escaping quotes */
+ if (strchr(argv[i], ' ')) {
+ strcat(options, "\"");
+ strcat(options, argv[i]);
+ strcat(options, "\"");
+ } else {
+ strcat(options, argv[i]);
+ }
+ strcat(options, " ");
+ }
+
+ if ((fd = open(filename, O_RDONLY, 0)) < 0) {
+ bb_perror_msg_and_die("cannot open module `%s'", filename);
+ }
+
+ fstat(fd, &st);
+ len = st.st_size;
+ map = mmap(NULL, len, PROT_READ, MAP_SHARED, fd, 0);
+ if (map == MAP_FAILED) {
+ bb_perror_msg_and_die("cannot mmap `%s'", filename);
+ }
+
+ ret = syscall(__NR_init_module, map, len, options);
+ if (ret != 0) {
+ bb_perror_msg_and_die("cannot insert `%s': %s (%li)",
+ filename, moderror(errno), ret);
+ }
+
+ return 0;
+}
+
+#endif
projects / oweals / busybox.git / blobdiff