diff options
Diffstat (limited to 'modutils')
| -rw-r--r-- | modutils/insmod.c | 100 |
1 files changed, 98 insertions, 2 deletions
diff --git a/modutils/insmod.c b/modutils/insmod.c index af12f36..5faae52 100644 --- a/modutils/insmod.c +++ b/modutils/insmod.c @@ -102,6 +102,19 @@ #define ELFCLASSM ELFCLASS32 #endif +#if defined(__s390__) +#define BB_USE_PLT_ENTRIES +#define BB_PLT_ENTRY_SIZE 8 +#define BB_USE_GOT_ENTRIES +#define BB_GOT_ENTRY_SIZE 8 +#define BB_USE_SINGLE + +#define MATCH_MACHINE(x) (x == EM_S390) +#define SHT_RELM SHT_RELA +#define Elf32_RelM Elf32_Rela +#define ELFCLASSM ELFCLASS32 +#endif + #if defined(__i386__) #define CONFIG_USE_GOT_ENTRIES #define CONFIG_GOT_ENTRY_SIZE 4 @@ -234,7 +247,7 @@ #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 $" +#ident "$Id: insmod.c,v 1.95 2003/01/23 06:02:39 andersen Exp $" /* This file contains the structures used by the 2.0 and 2.1 kernels. We do not use the kernel headers directly because we do not wish @@ -455,7 +468,7 @@ int delete_module(const char *); #ifndef MODUTILS_OBJ_H static const int MODUTILS_OBJ_H = 1; -#ident "$Id: insmod.c,v 1.94 2003/01/23 04:57:35 andersen Exp $" +#ident "$Id: insmod.c,v 1.95 2003/01/23 06:02:39 andersen Exp $" /* The relocatable object is manipulated using elfin types. */ @@ -856,6 +869,89 @@ arch_apply_relocation(struct obj_file *f, *loc += v - got; 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_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_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 (ELF32_R_TYPE(rel->r_info) == R_390_PLT16DBL) + ip[2] = v - 2; + else + ip[2] = v; + pe->inited = 1; + } + + /* Insert relative distance to target. */ + v = plt + pe->offset - dot; + if (ELF32_R_TYPE(rel->r_info) == R_390_PLT32) + *(unsigned int *) loc = (unsigned int) v; + else if (ELF32_R_TYPE(rel->r_info) == R_390_PLT16DBL) + *(unsigned short *) loc = (unsigned short) ((v + 2) >> 1); + break; + + case R_390_GLOB_DAT: + case R_390_JMP_SLOT: + *loc = v; + break; + + case R_390_RELATIVE: + *loc += f->baseaddr; + break; + + case R_390_GOTPC: + assert(got != 0); + *(unsigned long *) loc += got - dot; + 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; + *(Elf32_Addr *)(ifile->got->contents + isym->gotent.offset) = v; + } + if (ELF32_R_TYPE(rel->r_info) == R_390_GOT12) + *(unsigned short *) loc |= (*(unsigned short *) loc + isym->gotent.offset) & 0xfff; + else if (ELF32_R_TYPE(rel->r_info) == R_390_GOT16) + *(unsigned short *) loc += isym->gotent.offset; + else if (ELF32_R_TYPE(rel->r_info) == R_390_GOT32) + *(unsigned int *) loc += isym->gotent.offset; + break; + + case R_390_GOTOFF: + assert(got != 0); + *loc += v - got; + break; + #elif defined(__i386__) case R_386_NONE: |