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Patch from Jason McMullan @ linuxcare.com adding insmod

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support for s390 systems.
This commit is contained in:
Eric Andersen 2003-01-23 06:02:39 +00:00
parent 853c494efd
commit bf77f61d69
1 changed files with 98 additions and 2 deletions
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100
modutils/insmod.c
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@ -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: