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Diffstat (limited to 'arch/m32r/kernel/module.c')
-rw-r--r--arch/m32r/kernel/module.c203
1 files changed, 0 insertions, 203 deletions
diff --git a/arch/m32r/kernel/module.c b/arch/m32r/kernel/module.c
deleted file mode 100644
index 38233b6596b6..000000000000
--- a/arch/m32r/kernel/module.c
+++ /dev/null
@@ -1,203 +0,0 @@
-/* Kernel module help for M32R.
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-*/
-
-#include <linux/moduleloader.h>
-#include <linux/elf.h>
-#include <linux/vmalloc.h>
-#include <linux/fs.h>
-#include <linux/string.h>
-#include <linux/kernel.h>
-
-#if 0
-#define DEBUGP printk
-#else
-#define DEBUGP(fmt...)
-#endif
-
-#define COPY_UNALIGNED_WORD(sw, tw, align) \
-{ \
- void *__s = &(sw), *__t = &(tw); \
- unsigned short *__s2 = __s, *__t2 =__t; \
- unsigned char *__s1 = __s, *__t1 =__t; \
- switch ((align)) \
- { \
- case 0: \
- *(unsigned long *) __t = *(unsigned long *) __s; \
- break; \
- case 2: \
- *__t2++ = *__s2++; \
- *__t2 = *__s2; \
- break; \
- default: \
- *__t1++ = *__s1++; \
- *__t1++ = *__s1++; \
- *__t1++ = *__s1++; \
- *__t1 = *__s1; \
- break; \
- } \
-}
-
-#define COPY_UNALIGNED_HWORD(sw, tw, align) \
- { \
- void *__s = &(sw), *__t = &(tw); \
- unsigned short *__s2 = __s, *__t2 =__t; \
- unsigned char *__s1 = __s, *__t1 =__t; \
- switch ((align)) \
- { \
- case 0: \
- *__t2 = *__s2; \
- break; \
- default: \
- *__t1++ = *__s1++; \
- *__t1 = *__s1; \
- break; \
- } \
- }
-
-int apply_relocate_add(Elf32_Shdr *sechdrs,
- const char *strtab,
- unsigned int symindex,
- unsigned int relsec,
- struct module *me)
-{
- unsigned int i;
- Elf32_Rela *rel = (void *)sechdrs[relsec].sh_addr;
- Elf32_Sym *sym;
- Elf32_Addr relocation;
- uint32_t *location;
- uint32_t value;
- unsigned short *hlocation;
- unsigned short hvalue;
- int svalue;
- int align;
-
- DEBUGP("Applying relocate section %u to %u\n", relsec,
- sechdrs[relsec].sh_info);
- for (i = 0; i < sechdrs[relsec].sh_size / sizeof(*rel); i++) {
- /* This is where to make the change */
- location = (void *)sechdrs[sechdrs[relsec].sh_info].sh_addr
- + rel[i].r_offset;
- /* This is the symbol it is referring to. Note that all
- undefined symbols have been resolved. */
- sym = (Elf32_Sym *)sechdrs[symindex].sh_addr
- + ELF32_R_SYM(rel[i].r_info);
- relocation = sym->st_value + rel[i].r_addend;
- align = (int)location & 3;
-
- switch (ELF32_R_TYPE(rel[i].r_info)) {
- case R_M32R_32_RELA:
- COPY_UNALIGNED_WORD (*location, value, align);
- value += relocation;
- COPY_UNALIGNED_WORD (value, *location, align);
- break;
- case R_M32R_HI16_ULO_RELA:
- COPY_UNALIGNED_WORD (*location, value, align);
- relocation = (relocation >>16) & 0xffff;
- /* RELA must has 0 at relocation field. */
- value += relocation;
- COPY_UNALIGNED_WORD (value, *location, align);
- break;
- case R_M32R_HI16_SLO_RELA:
- COPY_UNALIGNED_WORD (*location, value, align);
- if (relocation & 0x8000) relocation += 0x10000;
- relocation = (relocation >>16) & 0xffff;
- /* RELA must has 0 at relocation field. */
- value += relocation;
- COPY_UNALIGNED_WORD (value, *location, align);
- break;
- case R_M32R_16_RELA:
- hlocation = (unsigned short *)location;
- relocation = relocation & 0xffff;
- /* RELA must has 0 at relocation field. */
- hvalue = relocation;
- COPY_UNALIGNED_WORD (hvalue, *hlocation, align);
- break;
- case R_M32R_SDA16_RELA:
- case R_M32R_LO16_RELA:
- COPY_UNALIGNED_WORD (*location, value, align);
- relocation = relocation & 0xffff;
- /* RELA must has 0 at relocation field. */
- value += relocation;
- COPY_UNALIGNED_WORD (value, *location, align);
- break;
- case R_M32R_24_RELA:
- COPY_UNALIGNED_WORD (*location, value, align);
- relocation = relocation & 0xffffff;
- /* RELA must has 0 at relocation field. */
- value += relocation;
- COPY_UNALIGNED_WORD (value, *location, align);
- break;
- case R_M32R_18_PCREL_RELA:
- relocation = (relocation - (Elf32_Addr) location);
- if (relocation < -0x20000 || 0x1fffc < relocation)
- {
- printk(KERN_ERR "module %s: relocation overflow: %u\n",
- me->name, relocation);
- return -ENOEXEC;
- }
- COPY_UNALIGNED_WORD (*location, value, align);
- if (value & 0xffff)
- {
- /* RELA must has 0 at relocation field. */
- printk(KERN_ERR "module %s: illegal relocation field: %u\n",
- me->name, value);
- return -ENOEXEC;
- }
- relocation = (relocation >> 2) & 0xffff;
- value += relocation;
- COPY_UNALIGNED_WORD (value, *location, align);
- break;
- case R_M32R_10_PCREL_RELA:
- hlocation = (unsigned short *)location;
- relocation = (relocation - (Elf32_Addr) location);
- COPY_UNALIGNED_HWORD (*hlocation, hvalue, align);
- svalue = (int)hvalue;
- svalue = (signed char)svalue << 2;
- relocation += svalue;
- relocation = (relocation >> 2) & 0xff;
- hvalue = hvalue & 0xff00;
- hvalue += relocation;
- COPY_UNALIGNED_HWORD (hvalue, *hlocation, align);
- break;
- case R_M32R_26_PCREL_RELA:
- relocation = (relocation - (Elf32_Addr) location);
- if (relocation < -0x2000000 || 0x1fffffc < relocation)
- {
- printk(KERN_ERR "module %s: relocation overflow: %u\n",
- me->name, relocation);
- return -ENOEXEC;
- }
- COPY_UNALIGNED_WORD (*location, value, align);
- if (value & 0xffffff)
- {
- /* RELA must has 0 at relocation field. */
- printk(KERN_ERR "module %s: illegal relocation field: %u\n",
- me->name, value);
- return -ENOEXEC;
- }
- relocation = (relocation >> 2) & 0xffffff;
- value += relocation;
- COPY_UNALIGNED_WORD (value, *location, align);
- break;
- default:
- printk(KERN_ERR "module %s: Unknown relocation: %u\n",
- me->name, ELF32_R_TYPE(rel[i].r_info));
- return -ENOEXEC;
- }
- }
- return 0;
-}
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