mirror of
https://github.com/sheumann/hush.git
synced 2024-06-28 14:29:51 +00:00
This patch from Bernhard Kuhn <kuhn@lpr.e-technik.tu-muenchen.de> is based on
the work of Jinux Kim on his "babobox" (derived from busybox-0.42), and enables kernel module loading and unloading for uClinux/m68k.
This commit is contained in:
Eric Andersen
parent
2f6e1f880b
commit
8ae319a322
6
Config.h
6
Config.h
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@ -295,6 +295,12 @@
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// Support module version checking
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//#define BB_FEATURE_INSMOD_VERSION_CHECKING
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//
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// Support for uClinux memory usage optimization, which will load the image
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// directly into the kernel memory. This divides memory requrements by three.
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// If you are not running uClinux (i.e. your CPU has an MMU) leave this
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// disabled...
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//#define BB_FEATURE_INSMOD_LOADINKMEM
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//
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// Support for Minix filesystem, version 2
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//#define BB_FEATURE_MINIX2
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//
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159
insmod.c
159
insmod.c
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@ -69,6 +69,12 @@
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# define old_sys_init_module init_module
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#endif
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#ifdef BB_FEATURE_INSMOD_LOADINKMEM
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#define LOADBITS 0
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#else
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#define LOADBITS 1
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#endif
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#if defined(__powerpc__)
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#define BB_USE_PLT_ENTRIES
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#define BB_PLT_ENTRY_SIZE 16
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@ -124,7 +130,7 @@
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#ifndef MODUTILS_MODULE_H
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static const int MODUTILS_MODULE_H = 1;
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#ident "$Id: insmod.c,v 1.63 2001/05/14 20:03:04 andersen Exp $"
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#ident "$Id: insmod.c,v 1.64 2001/05/21 16:09:18 andersen Exp $"
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/* This file contains the structures used by the 2.0 and 2.1 kernels.
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We do not use the kernel headers directly because we do not wish
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@ -257,8 +263,19 @@ struct new_module
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unsigned tgt_long persist_end;
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unsigned tgt_long can_unload;
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unsigned tgt_long runsize;
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#ifdef BB_FEATURE_NEW_MODULE_INTERFACE
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const char *kallsyms_start; /* All symbols for kernel debugging */
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const char *kallsyms_end;
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const char *archdata_start; /* arch specific data for module */
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const char *archdata_end;
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const char *kernel_data; /* Reserved for kernel internal use */
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#endif
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};
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#define ARCHDATA_SEC_NAME "__archdata"
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#define KALLSYMS_SEC_NAME "__kallsyms"
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struct new_module_info
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{
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unsigned long addr;
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@ -330,7 +347,7 @@ int delete_module(const char *);
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#ifndef MODUTILS_OBJ_H
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static const int MODUTILS_OBJ_H = 1;
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#ident "$Id: insmod.c,v 1.63 2001/05/14 20:03:04 andersen Exp $"
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#ident "$Id: insmod.c,v 1.64 2001/05/21 16:09:18 andersen Exp $"
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/* The relocatable object is manipulated using elfin types. */
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@ -355,6 +372,14 @@ static const int MODUTILS_OBJ_H = 1;
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#define ELFCLASSM ELFCLASS32
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#if (defined(__m68k__))
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#define ELFDATAM ELFDATA2MSB
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#else
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#define ELFDATAM ELFDATA2LSB
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#endif
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#if defined(__sh__)
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#define MATCH_MACHINE(x) (x == EM_SH)
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@ -412,6 +437,12 @@ static const int MODUTILS_OBJ_H = 1;
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#define Elf32_RelM Elf32_Rel
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#define ELFDATAM ELFDATA2LSB
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#elif defined(__m68k__)
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#define MATCH_MACHINE(x) (x == EM_68K)
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#define SHT_RELM SHT_RELA
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#define Elf32_RelM Elf32_Rela
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#else
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#error Sorry, but insmod.c does not yet support this architecture...
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#endif
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@ -558,7 +589,7 @@ unsigned long obj_load_size (struct obj_file *f);
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int obj_relocate (struct obj_file *f, ElfW(Addr) base);
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struct obj_file *obj_load(FILE *f);
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struct obj_file *obj_load(FILE *f, int loadprogbits);
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int obj_create_image (struct obj_file *f, char *image);
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@ -784,6 +815,8 @@ arch_apply_relocation(struct obj_file *f,
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case R_ARM_NONE:
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#elif defined(__i386__)
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case R_386_NONE:
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#elif defined(__m68k__)
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case R_68K_NONE:
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#elif defined(__powerpc__)
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case R_PPC_NONE:
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#elif defined(__mips__)
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@ -797,6 +830,8 @@ arch_apply_relocation(struct obj_file *f,
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case R_ARM_ABS32:
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#elif defined(__i386__)
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case R_386_32:
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#elif defined(__m68k__)
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case R_68K_32:
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#elif defined(__powerpc__)
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case R_PPC_ADDR32:
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#elif defined(__mips__)
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@ -804,6 +839,18 @@ arch_apply_relocation(struct obj_file *f,
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#endif
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*loc += v;
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break;
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#if defined(__m68k__)
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case R_68K_8:
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if (v > 0xff)
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ret = obj_reloc_overflow;
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*(char *)loc = v;
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break;
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case R_68K_16:
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if (v > 0xffff)
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ret = obj_reloc_overflow;
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*(short *)loc = v;
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break;
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#endif /* __m68k__ */
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#if defined(__powerpc__)
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case R_PPC_ADDR16_HA:
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@ -909,6 +956,22 @@ arch_apply_relocation(struct obj_file *f,
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case R_386_PC32:
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*loc += v - dot;
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break;
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#elif defined(__m68k__)
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case R_68K_PC8:
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v -= dot;
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if ((Elf32_Sword)v > 0x7f || (Elf32_Sword)v < -(Elf32_Sword)0x80)
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ret = obj_reloc_overflow;
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*(char *)loc = v;
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break;
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case R_68K_PC16:
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v -= dot;
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if ((Elf32_Sword)v > 0x7fff || (Elf32_Sword)v < -(Elf32_Sword)0x8000)
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ret = obj_reloc_overflow;
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*(short *)loc = v;
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break;
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case R_68K_PC32:
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*(int *)loc = v - dot;
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break;
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#elif defined(__powerpc__)
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case R_PPC_REL32:
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*loc = v - dot;
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@ -988,6 +1051,11 @@ arch_apply_relocation(struct obj_file *f,
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case R_386_JMP_SLOT:
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*loc = v;
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break;
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#elif defined(__m68k__)
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case R_68K_GLOB_DAT:
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case R_68K_JMP_SLOT:
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*loc = v;
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break;
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#endif
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#if defined(__arm__)
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@ -999,10 +1067,15 @@ arch_apply_relocation(struct obj_file *f,
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case R_386_RELATIVE:
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*loc += f->baseaddr;
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break;
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#elif defined(__m68k__)
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case R_68K_RELATIVE:
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*(int *)loc += f->baseaddr;
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break;
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#endif
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#if defined(BB_USE_GOT_ENTRIES)
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#if !defined(__68k__)
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#if defined(__sh__)
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case R_SH_GOTPC:
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#elif defined(__arm__)
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@ -1013,10 +1086,11 @@ arch_apply_relocation(struct obj_file *f,
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assert(got != 0);
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#if defined(__sh__)
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*loc += got - dot + rel->r_addend;;
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#elif defined(__i386__) || defined(__arm__)
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#elif defined(__i386__) || defined(__arm__) || defined(__m68k_)
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*loc += got - dot;
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#endif
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break;
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#endif // __68k__
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#if defined(__sh__)
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case R_SH_GOT32:
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@ -1024,6 +1098,8 @@ arch_apply_relocation(struct obj_file *f,
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case R_ARM_GOT32:
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#elif defined(__i386__)
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case R_386_GOT32:
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#elif defined(__m68k__)
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case R_68K_GOT32:
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#endif
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assert(isym != NULL);
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/* needs an entry in the .got: set it, once */
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@ -1034,22 +1110,26 @@ arch_apply_relocation(struct obj_file *f,
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/* make the reloc with_respect_to_.got */
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#if defined(__sh__)
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*loc += isym->gotent.offset + rel->r_addend;
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#elif defined(__i386__) || defined(__arm__)
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#elif defined(__i386__) || defined(__arm__) || defined(__m68k__)
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*loc += isym->gotent.offset;
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#endif
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break;
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/* address relative to the got */
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#if !defined(__m68k__)
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#if defined(__sh__)
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case R_SH_GOTOFF:
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#elif defined(__arm__)
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case R_ARM_GOTOFF:
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#elif defined(__i386__)
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case R_386_GOTOFF:
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#elif defined(__m68k__)
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case R_68K_GOTOFF:
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#endif
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assert(got != 0);
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*loc += v - got;
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break;
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#endif // __m68k__
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#endif /* BB_USE_GOT_ENTRIES */
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@ -1105,6 +1185,9 @@ int arch_create_got(struct obj_file *f)
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#elif defined(__i386__)
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case R_386_GOT32:
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break;
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#elif defined(__m68k__)
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case R_68K_GOT32:
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break;
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#endif
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#if defined(__powerpc__)
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@ -2504,6 +2587,16 @@ new_init_module(const char *m_name, struct obj_file *f,
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module->runsize > sec->header.sh_addr - m_addr)
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module->runsize = sec->header.sh_addr - m_addr;
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}
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sec = obj_find_section(f, ARCHDATA_SEC_NAME);
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if (sec && sec->header.sh_size) {
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module->archdata_start = (void*)sec->header.sh_addr;
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module->archdata_end = module->archdata_start + sec->header.sh_size;
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}
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sec = obj_find_section(f, KALLSYMS_SEC_NAME);
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if (sec && sec->header.sh_size) {
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module->kallsyms_start = (void*)sec->header.sh_addr;
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module->kallsyms_end = module->kallsyms_start + sec->header.sh_size;
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}
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if (!arch_init_module(f, module))
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return 0;
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@ -2884,7 +2977,7 @@ int obj_create_image(struct obj_file *f, char *image)
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/*======================================================================*/
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struct obj_file *obj_load(FILE * fp)
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struct obj_file *obj_load(FILE * fp, int loadprogbits)
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{
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struct obj_file *f;
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ElfW(Shdr) * section_headers;
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@ -2963,6 +3056,12 @@ struct obj_file *obj_load(FILE * fp)
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break;
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case SHT_PROGBITS:
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#if LOADBITS
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if (!loadprogbits) {
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sec->contents = NULL;
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break;
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}
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#endif
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case SHT_SYMTAB:
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case SHT_STRTAB:
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case SHT_RELM:
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@ -3078,6 +3177,39 @@ struct obj_file *obj_load(FILE * fp)
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return f;
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}
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#ifdef BB_FEATURE_INSMOD_LOADINKMEM
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/*
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* load the unloaded sections directly into the memory allocated by
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* kernel for the module
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*/
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int obj_load_progbits(FILE * fp, struct obj_file* f)
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{
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char* imagebase = (char*) f->imagebase;
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ElfW(Addr) base = f->baseaddr;
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struct obj_section* sec;
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for (sec = f->load_order; sec; sec = sec->load_next) {
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/* section already loaded? */
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if (sec->contents != NULL)
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continue;
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if (sec->header.sh_size == 0)
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continue;
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sec->contents = imagebase + (sec->header.sh_addr - base);
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fseek(fp, sec->header.sh_offset, SEEK_SET);
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if (fread(sec->contents, sec->header.sh_size, 1, fp) != 1) {
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errorMsg("error reading ELF section data: %s\n", strerror(errno));
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return 0;
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}
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}
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return 1;
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}
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#endif
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static void hide_special_symbols(struct obj_file *f)
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{
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static const char *const specials[] = {
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@ -3219,7 +3351,7 @@ extern int insmod_main( int argc, char **argv)
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printf("Using %s\n", m_filename);
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if ((f = obj_load(fp)) == NULL)
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if ((f = obj_load(fp, LOADBITS)) == NULL)
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perror_msg_and_die("Could not load the module");
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if (get_modinfo_value(f, "kernel_version") == NULL)
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@ -3344,6 +3476,19 @@ extern int insmod_main( int argc, char **argv)
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goto out;
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}
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#if !LOADBITS
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/*
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* the PROGBITS section was not loaded by the obj_load
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* now we can load them directly into the kernel memory
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*/
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// f->imagebase = (char*) m_addr;
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f->imagebase = (ElfW(Addr)) m_addr;
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if (!obj_load_progbits(fp, f)) {
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delete_module(m_name);
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goto out;
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}
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#endif
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if (!obj_relocate(f, m_addr)) {
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delete_module(m_name);
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goto out;
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@ -69,6 +69,12 @@
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# define old_sys_init_module init_module
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#endif
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#ifdef BB_FEATURE_INSMOD_LOADINKMEM
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#define LOADBITS 0
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#else
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#define LOADBITS 1
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#endif
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|
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#if defined(__powerpc__)
|
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#define BB_USE_PLT_ENTRIES
|
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#define BB_PLT_ENTRY_SIZE 16
|
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|
|
@ -124,7 +130,7 @@
|
|||
#ifndef MODUTILS_MODULE_H
|
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static const int MODUTILS_MODULE_H = 1;
|
||||
|
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#ident "$Id: insmod.c,v 1.63 2001/05/14 20:03:04 andersen Exp $"
|
||||
#ident "$Id: insmod.c,v 1.64 2001/05/21 16:09:18 andersen Exp $"
|
||||
|
||||
/* This file contains the structures used by the 2.0 and 2.1 kernels.
|
||||
We do not use the kernel headers directly because we do not wish
|
||||
|
|
@ -257,8 +263,19 @@ struct new_module
|
|||
unsigned tgt_long persist_end;
|
||||
unsigned tgt_long can_unload;
|
||||
unsigned tgt_long runsize;
|
||||
#ifdef BB_FEATURE_NEW_MODULE_INTERFACE
|
||||
const char *kallsyms_start; /* All symbols for kernel debugging */
|
||||
const char *kallsyms_end;
|
||||
const char *archdata_start; /* arch specific data for module */
|
||||
const char *archdata_end;
|
||||
const char *kernel_data; /* Reserved for kernel internal use */
|
||||
#endif
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||||
};
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|
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#define ARCHDATA_SEC_NAME "__archdata"
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#define KALLSYMS_SEC_NAME "__kallsyms"
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|
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|
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struct new_module_info
|
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{
|
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unsigned long addr;
|
||||
|
|
@ -330,7 +347,7 @@ int delete_module(const char *);
|
|||
#ifndef MODUTILS_OBJ_H
|
||||
static const int MODUTILS_OBJ_H = 1;
|
||||
|
||||
#ident "$Id: insmod.c,v 1.63 2001/05/14 20:03:04 andersen Exp $"
|
||||
#ident "$Id: insmod.c,v 1.64 2001/05/21 16:09:18 andersen Exp $"
|
||||
|
||||
/* The relocatable object is manipulated using elfin types. */
|
||||
|
||||
|
|
@ -355,6 +372,14 @@ static const int MODUTILS_OBJ_H = 1;
|
|||
|
||||
#define ELFCLASSM ELFCLASS32
|
||||
|
||||
#if (defined(__m68k__))
|
||||
#define ELFDATAM ELFDATA2MSB
|
||||
#else
|
||||
#define ELFDATAM ELFDATA2LSB
|
||||
#endif
|
||||
|
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|
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|
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#if defined(__sh__)
|
||||
|
||||
#define MATCH_MACHINE(x) (x == EM_SH)
|
||||
|
|
@ -412,6 +437,12 @@ static const int MODUTILS_OBJ_H = 1;
|
|||
#define Elf32_RelM Elf32_Rel
|
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#define ELFDATAM ELFDATA2LSB
|
||||
|
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#elif defined(__m68k__)
|
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|
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#define MATCH_MACHINE(x) (x == EM_68K)
|
||||
#define SHT_RELM SHT_RELA
|
||||
#define Elf32_RelM Elf32_Rela
|
||||
|
||||
#else
|
||||
#error Sorry, but insmod.c does not yet support this architecture...
|
||||
#endif
|
||||
|
|
@ -558,7 +589,7 @@ unsigned long obj_load_size (struct obj_file *f);
|
|||
|
||||
int obj_relocate (struct obj_file *f, ElfW(Addr) base);
|
||||
|
||||
struct obj_file *obj_load(FILE *f);
|
||||
struct obj_file *obj_load(FILE *f, int loadprogbits);
|
||||
|
||||
int obj_create_image (struct obj_file *f, char *image);
|
||||
|
||||
|
|
@ -784,6 +815,8 @@ arch_apply_relocation(struct obj_file *f,
|
|||
case R_ARM_NONE:
|
||||
#elif defined(__i386__)
|
||||
case R_386_NONE:
|
||||
#elif defined(__m68k__)
|
||||
case R_68K_NONE:
|
||||
#elif defined(__powerpc__)
|
||||
case R_PPC_NONE:
|
||||
#elif defined(__mips__)
|
||||
|
|
@ -797,6 +830,8 @@ arch_apply_relocation(struct obj_file *f,
|
|||
case R_ARM_ABS32:
|
||||
#elif defined(__i386__)
|
||||
case R_386_32:
|
||||
#elif defined(__m68k__)
|
||||
case R_68K_32:
|
||||
#elif defined(__powerpc__)
|
||||
case R_PPC_ADDR32:
|
||||
#elif defined(__mips__)
|
||||
|
|
@ -804,6 +839,18 @@ arch_apply_relocation(struct obj_file *f,
|
|||
#endif
|
||||
*loc += v;
|
||||
break;
|
||||
#if defined(__m68k__)
|
||||
case R_68K_8:
|
||||
if (v > 0xff)
|
||||
ret = obj_reloc_overflow;
|
||||
*(char *)loc = v;
|
||||
break;
|
||||
case R_68K_16:
|
||||
if (v > 0xffff)
|
||||
ret = obj_reloc_overflow;
|
||||
*(short *)loc = v;
|
||||
break;
|
||||
#endif /* __m68k__ */
|
||||
|
||||
#if defined(__powerpc__)
|
||||
case R_PPC_ADDR16_HA:
|
||||
|
|
@ -909,6 +956,22 @@ arch_apply_relocation(struct obj_file *f,
|
|||
case R_386_PC32:
|
||||
*loc += v - dot;
|
||||
break;
|
||||
#elif defined(__m68k__)
|
||||
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;
|
||||
case R_68K_PC32:
|
||||
*(int *)loc = v - dot;
|
||||
break;
|
||||
#elif defined(__powerpc__)
|
||||
case R_PPC_REL32:
|
||||
*loc = v - dot;
|
||||
|
|
@ -988,6 +1051,11 @@ arch_apply_relocation(struct obj_file *f,
|
|||
case R_386_JMP_SLOT:
|
||||
*loc = v;
|
||||
break;
|
||||
#elif defined(__m68k__)
|
||||
case R_68K_GLOB_DAT:
|
||||
case R_68K_JMP_SLOT:
|
||||
*loc = v;
|
||||
break;
|
||||
#endif
|
||||
|
||||
#if defined(__arm__)
|
||||
|
|
@ -999,10 +1067,15 @@ arch_apply_relocation(struct obj_file *f,
|
|||
case R_386_RELATIVE:
|
||||
*loc += f->baseaddr;
|
||||
break;
|
||||
#elif defined(__m68k__)
|
||||
case R_68K_RELATIVE:
|
||||
*(int *)loc += f->baseaddr;
|
||||
break;
|
||||
#endif
|
||||
|
||||
#if defined(BB_USE_GOT_ENTRIES)
|
||||
|
||||
#if !defined(__68k__)
|
||||
#if defined(__sh__)
|
||||
case R_SH_GOTPC:
|
||||
#elif defined(__arm__)
|
||||
|
|
@ -1013,10 +1086,11 @@ arch_apply_relocation(struct obj_file *f,
|
|||
assert(got != 0);
|
||||
#if defined(__sh__)
|
||||
*loc += got - dot + rel->r_addend;;
|
||||
#elif defined(__i386__) || defined(__arm__)
|
||||
#elif defined(__i386__) || defined(__arm__) || defined(__m68k_)
|
||||
*loc += got - dot;
|
||||
#endif
|
||||
break;
|
||||
#endif // __68k__
|
||||
|
||||
#if defined(__sh__)
|
||||
case R_SH_GOT32:
|
||||
|
|
@ -1024,6 +1098,8 @@ arch_apply_relocation(struct obj_file *f,
|
|||
case R_ARM_GOT32:
|
||||
#elif defined(__i386__)
|
||||
case R_386_GOT32:
|
||||
#elif defined(__m68k__)
|
||||
case R_68K_GOT32:
|
||||
#endif
|
||||
assert(isym != NULL);
|
||||
/* needs an entry in the .got: set it, once */
|
||||
|
|
@ -1034,22 +1110,26 @@ arch_apply_relocation(struct obj_file *f,
|
|||
/* make the reloc with_respect_to_.got */
|
||||
#if defined(__sh__)
|
||||
*loc += isym->gotent.offset + rel->r_addend;
|
||||
#elif defined(__i386__) || defined(__arm__)
|
||||
#elif defined(__i386__) || defined(__arm__) || defined(__m68k__)
|
||||
*loc += isym->gotent.offset;
|
||||
#endif
|
||||
break;
|
||||
|
||||
/* address relative to the got */
|
||||
#if !defined(__m68k__)
|
||||
#if defined(__sh__)
|
||||
case R_SH_GOTOFF:
|
||||
#elif defined(__arm__)
|
||||
case R_ARM_GOTOFF:
|
||||
#elif defined(__i386__)
|
||||
case R_386_GOTOFF:
|
||||
#elif defined(__m68k__)
|
||||
case R_68K_GOTOFF:
|
||||
#endif
|
||||
assert(got != 0);
|
||||
*loc += v - got;
|
||||
break;
|
||||
#endif // __m68k__
|
||||
|
||||
#endif /* BB_USE_GOT_ENTRIES */
|
||||
|
||||
|
|
@ -1105,6 +1185,9 @@ int arch_create_got(struct obj_file *f)
|
|||
#elif defined(__i386__)
|
||||
case R_386_GOT32:
|
||||
break;
|
||||
#elif defined(__m68k__)
|
||||
case R_68K_GOT32:
|
||||
break;
|
||||
#endif
|
||||
|
||||
#if defined(__powerpc__)
|
||||
|
|
@ -2504,6 +2587,16 @@ new_init_module(const char *m_name, struct obj_file *f,
|
|||
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->archdata_start = (void*)sec->header.sh_addr;
|
||||
module->archdata_end = module->archdata_start + sec->header.sh_size;
|
||||
}
|
||||
sec = obj_find_section(f, KALLSYMS_SEC_NAME);
|
||||
if (sec && sec->header.sh_size) {
|
||||
module->kallsyms_start = (void*)sec->header.sh_addr;
|
||||
module->kallsyms_end = module->kallsyms_start + sec->header.sh_size;
|
||||
}
|
||||
|
||||
if (!arch_init_module(f, module))
|
||||
return 0;
|
||||
|
|
@ -2884,7 +2977,7 @@ int obj_create_image(struct obj_file *f, char *image)
|
|||
|
||||
/*======================================================================*/
|
||||
|
||||
struct obj_file *obj_load(FILE * fp)
|
||||
struct obj_file *obj_load(FILE * fp, int loadprogbits)
|
||||
{
|
||||
struct obj_file *f;
|
||||
ElfW(Shdr) * section_headers;
|
||||
|
|
@ -2963,6 +3056,12 @@ struct obj_file *obj_load(FILE * fp)
|
|||
break;
|
||||
|
||||
case SHT_PROGBITS:
|
||||
#if LOADBITS
|
||||
if (!loadprogbits) {
|
||||
sec->contents = NULL;
|
||||
break;
|
||||
}
|
||||
#endif
|
||||
case SHT_SYMTAB:
|
||||
case SHT_STRTAB:
|
||||
case SHT_RELM:
|
||||
|
|
@ -3078,6 +3177,39 @@ struct obj_file *obj_load(FILE * fp)
|
|||
return f;
|
||||
}
|
||||
|
||||
#ifdef BB_FEATURE_INSMOD_LOADINKMEM
|
||||
/*
|
||||
* load the unloaded sections directly into the memory allocated by
|
||||
* kernel for the module
|
||||
*/
|
||||
|
||||
int obj_load_progbits(FILE * fp, struct obj_file* f)
|
||||
{
|
||||
char* imagebase = (char*) f->imagebase;
|
||||
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) {
|
||||
errorMsg("error reading ELF section data: %s\n", strerror(errno));
|
||||
return 0;
|
||||
}
|
||||
|
||||
}
|
||||
return 1;
|
||||
}
|
||||
#endif
|
||||
|
||||
static void hide_special_symbols(struct obj_file *f)
|
||||
{
|
||||
static const char *const specials[] = {
|
||||
|
|
@ -3219,7 +3351,7 @@ extern int insmod_main( int argc, char **argv)
|
|||
|
||||
printf("Using %s\n", m_filename);
|
||||
|
||||
if ((f = obj_load(fp)) == NULL)
|
||||
if ((f = obj_load(fp, LOADBITS)) == NULL)
|
||||
perror_msg_and_die("Could not load the module");
|
||||
|
||||
if (get_modinfo_value(f, "kernel_version") == NULL)
|
||||
|
|
@ -3344,6 +3476,19 @@ extern int insmod_main( int argc, char **argv)
|
|||
goto out;
|
||||
}
|
||||
|
||||
#if !LOADBITS
|
||||
/*
|
||||
* the PROGBITS section was not loaded by the obj_load
|
||||
* now we can load them directly into the kernel memory
|
||||
*/
|
||||
// f->imagebase = (char*) m_addr;
|
||||
f->imagebase = (ElfW(Addr)) m_addr;
|
||||
if (!obj_load_progbits(fp, f)) {
|
||||
delete_module(m_name);
|
||||
goto out;
|
||||
}
|
||||
#endif
|
||||
|
||||
if (!obj_relocate(f, m_addr)) {
|
||||
delete_module(m_name);
|
||||
goto out;
|
||||
|
|
|
|||
Loading…
Reference in New Issue
Block a user