tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
unicore32 core architecture: generic elf and ksyms stuff
This patch includes some generic stuff including elf and ksyms.
Because all one-line asm-generic headers are auto-generated by ASM_GENERIC_HEADERS
in arch/unicore32/Makefile, so the rest seems very little.
ELF handling functions and module handling functions are also here.
Signed-off-by: Guan Xuetao <gxt@mprc.pku.edu.cn>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
+571
+94
arch/unicore32/include/asm/elf.h
+94
arch/unicore32/include/asm/elf.h
···
1
+
/*
2
+
* linux/arch/unicore32/include/asm/elf.h
3
+
*
4
+
* Code specific to PKUnity SoC and UniCore ISA
5
+
*
6
+
* Copyright (C) 2001-2010 GUAN Xue-tao
7
+
*
8
+
* This program is free software; you can redistribute it and/or modify
9
+
* it under the terms of the GNU General Public License version 2 as
10
+
* published by the Free Software Foundation.
11
+
*/
12
+
13
+
#ifndef __UNICORE_ELF_H__
14
+
#define __UNICORE_ELF_H__
15
+
16
+
#include <asm/hwcap.h>
17
+
18
+
/*
19
+
* ELF register definitions..
20
+
*/
21
+
#include <asm/ptrace.h>
22
+
23
+
typedef unsigned long elf_greg_t;
24
+
typedef unsigned long elf_freg_t[3];
25
+
26
+
#define ELF_NGREG (sizeof(struct pt_regs) / sizeof(elf_greg_t))
27
+
typedef elf_greg_t elf_gregset_t[ELF_NGREG];
28
+
29
+
typedef struct fp_state elf_fpregset_t;
30
+
31
+
#define EM_UNICORE 110
32
+
33
+
#define R_UNICORE_NONE 0
34
+
#define R_UNICORE_PC24 1
35
+
#define R_UNICORE_ABS32 2
36
+
#define R_UNICORE_CALL 28
37
+
#define R_UNICORE_JUMP24 29
38
+
39
+
/*
40
+
* These are used to set parameters in the core dumps.
41
+
*/
42
+
#define ELF_CLASS ELFCLASS32
43
+
#define ELF_DATA ELFDATA2LSB
44
+
#define ELF_ARCH EM_UNICORE
45
+
46
+
/*
47
+
* This yields a string that ld.so will use to load implementation
48
+
* specific libraries for optimization. This is more specific in
49
+
* intent than poking at uname or /proc/cpuinfo.
50
+
*
51
+
*/
52
+
#define ELF_PLATFORM_SIZE 8
53
+
#define ELF_PLATFORM (elf_platform)
54
+
55
+
extern char elf_platform[];
56
+
57
+
struct elf32_hdr;
58
+
59
+
/*
60
+
* This is used to ensure we don't load something for the wrong architecture.
61
+
*/
62
+
extern int elf_check_arch(const struct elf32_hdr *);
63
+
#define elf_check_arch elf_check_arch
64
+
65
+
struct task_struct;
66
+
int dump_task_regs(struct task_struct *t, elf_gregset_t *elfregs);
67
+
#define ELF_CORE_COPY_TASK_REGS dump_task_regs
68
+
69
+
#define ELF_EXEC_PAGESIZE 4096
70
+
71
+
/* This is the location that an ET_DYN program is loaded if exec'ed. Typical
72
+
use of this is to invoke "./ld.so someprog" to test out a new version of
73
+
the loader. We need to make sure that it is out of the way of the program
74
+
that it will "exec", and that there is sufficient room for the brk. */
75
+
76
+
#define ELF_ET_DYN_BASE (2 * TASK_SIZE / 3)
77
+
78
+
/* When the program starts, a1 contains a pointer to a function to be
79
+
registered with atexit, as per the SVR4 ABI. A value of 0 means we
80
+
have no such handler. */
81
+
#define ELF_PLAT_INIT(_r, load_addr) {(_r)->UCreg_00 = 0; }
82
+
83
+
extern void elf_set_personality(const struct elf32_hdr *);
84
+
#define SET_PERSONALITY(ex) elf_set_personality(&(ex))
85
+
86
+
struct mm_struct;
87
+
extern unsigned long arch_randomize_brk(struct mm_struct *mm);
88
+
#define arch_randomize_brk arch_randomize_brk
89
+
90
+
extern int vectors_user_mapping(void);
91
+
#define arch_setup_additional_pages(bprm, uses_interp) vectors_user_mapping()
92
+
#define ARCH_HAS_SETUP_ADDITIONAL_PAGES
93
+
94
+
#endif
+38
arch/unicore32/include/asm/string.h
+38
arch/unicore32/include/asm/string.h
···
1
+
/*
2
+
* linux/arch/unicore32/include/asm/string.h
3
+
*
4
+
* Code specific to PKUnity SoC and UniCore ISA
5
+
*
6
+
* Copyright (C) 2001-2010 GUAN Xue-tao
7
+
*
8
+
* This program is free software; you can redistribute it and/or modify
9
+
* it under the terms of the GNU General Public License version 2 as
10
+
* published by the Free Software Foundation.
11
+
*/
12
+
#ifndef __UNICORE_STRING_H__
13
+
#define __UNICORE_STRING_H__
14
+
15
+
/*
16
+
* We don't do inline string functions, since the
17
+
* optimised inline asm versions are not small.
18
+
*/
19
+
20
+
#define __HAVE_ARCH_STRRCHR
21
+
extern char *strrchr(const char *s, int c);
22
+
23
+
#define __HAVE_ARCH_STRCHR
24
+
extern char *strchr(const char *s, int c);
25
+
26
+
#define __HAVE_ARCH_MEMCPY
27
+
extern void *memcpy(void *, const void *, __kernel_size_t);
28
+
29
+
#define __HAVE_ARCH_MEMMOVE
30
+
extern void *memmove(void *, const void *, __kernel_size_t);
31
+
32
+
#define __HAVE_ARCH_MEMCHR
33
+
extern void *memchr(const void *, int, __kernel_size_t);
34
+
35
+
#define __HAVE_ARCH_MEMSET
36
+
extern void *memset(void *, int, __kernel_size_t);
37
+
38
+
#endif
+112
arch/unicore32/kernel/asm-offsets.c
+112
arch/unicore32/kernel/asm-offsets.c
···
1
+
/*
2
+
* linux/arch/unicore32/kernel/asm-offsets.c
3
+
*
4
+
* Code specific to PKUnity SoC and UniCore ISA
5
+
*
6
+
* Copyright (C) 2001-2010 GUAN Xue-tao
7
+
*
8
+
* Generate definitions needed by assembly language modules.
9
+
* This code generates raw asm output which is post-processed to extract
10
+
* and format the required data.
11
+
*
12
+
* This program is free software; you can redistribute it and/or modify
13
+
* it under the terms of the GNU General Public License version 2 as
14
+
* published by the Free Software Foundation.
15
+
*/
16
+
#include <linux/sched.h>
17
+
#include <linux/mm.h>
18
+
#include <linux/dma-mapping.h>
19
+
#include <linux/kbuild.h>
20
+
#include <linux/suspend.h>
21
+
#include <linux/thread_info.h>
22
+
#include <asm/memory.h>
23
+
#include <asm/suspend.h>
24
+
25
+
/*
26
+
* GCC 3.0, 3.1: general bad code generation.
27
+
* GCC 3.2.0: incorrect function argument offset calculation.
28
+
* GCC 3.2.x: miscompiles NEW_AUX_ENT in fs/binfmt_elf.c
29
+
* (http://gcc.gnu.org/PR8896) and incorrect structure
30
+
* initialisation in fs/jffs2/erase.c
31
+
*/
32
+
#if (__GNUC__ < 4)
33
+
#error Your compiler should upgrade to uc4
34
+
#error Known good compilers: 4.2.2
35
+
#endif
36
+
37
+
int main(void)
38
+
{
39
+
DEFINE(TSK_ACTIVE_MM, offsetof(struct task_struct, active_mm));
40
+
BLANK();
41
+
DEFINE(TI_FLAGS, offsetof(struct thread_info, flags));
42
+
DEFINE(TI_PREEMPT, offsetof(struct thread_info, preempt_count));
43
+
DEFINE(TI_ADDR_LIMIT, offsetof(struct thread_info, addr_limit));
44
+
DEFINE(TI_TASK, offsetof(struct thread_info, task));
45
+
DEFINE(TI_EXEC_DOMAIN, offsetof(struct thread_info, exec_domain));
46
+
DEFINE(TI_CPU, offsetof(struct thread_info, cpu));
47
+
DEFINE(TI_CPU_SAVE, offsetof(struct thread_info, cpu_context));
48
+
DEFINE(TI_USED_CP, offsetof(struct thread_info, used_cp));
49
+
#ifdef CONFIG_UNICORE_FPU_F64
50
+
DEFINE(TI_FPSTATE, offsetof(struct thread_info, fpstate));
51
+
#endif
52
+
BLANK();
53
+
DEFINE(S_R0, offsetof(struct pt_regs, UCreg_00));
54
+
DEFINE(S_R1, offsetof(struct pt_regs, UCreg_01));
55
+
DEFINE(S_R2, offsetof(struct pt_regs, UCreg_02));
56
+
DEFINE(S_R3, offsetof(struct pt_regs, UCreg_03));
57
+
DEFINE(S_R4, offsetof(struct pt_regs, UCreg_04));
58
+
DEFINE(S_R5, offsetof(struct pt_regs, UCreg_05));
59
+
DEFINE(S_R6, offsetof(struct pt_regs, UCreg_06));
60
+
DEFINE(S_R7, offsetof(struct pt_regs, UCreg_07));
61
+
DEFINE(S_R8, offsetof(struct pt_regs, UCreg_08));
62
+
DEFINE(S_R9, offsetof(struct pt_regs, UCreg_09));
63
+
DEFINE(S_R10, offsetof(struct pt_regs, UCreg_10));
64
+
DEFINE(S_R11, offsetof(struct pt_regs, UCreg_11));
65
+
DEFINE(S_R12, offsetof(struct pt_regs, UCreg_12));
66
+
DEFINE(S_R13, offsetof(struct pt_regs, UCreg_13));
67
+
DEFINE(S_R14, offsetof(struct pt_regs, UCreg_14));
68
+
DEFINE(S_R15, offsetof(struct pt_regs, UCreg_15));
69
+
DEFINE(S_R16, offsetof(struct pt_regs, UCreg_16));
70
+
DEFINE(S_R17, offsetof(struct pt_regs, UCreg_17));
71
+
DEFINE(S_R18, offsetof(struct pt_regs, UCreg_18));
72
+
DEFINE(S_R19, offsetof(struct pt_regs, UCreg_19));
73
+
DEFINE(S_R20, offsetof(struct pt_regs, UCreg_20));
74
+
DEFINE(S_R21, offsetof(struct pt_regs, UCreg_21));
75
+
DEFINE(S_R22, offsetof(struct pt_regs, UCreg_22));
76
+
DEFINE(S_R23, offsetof(struct pt_regs, UCreg_23));
77
+
DEFINE(S_R24, offsetof(struct pt_regs, UCreg_24));
78
+
DEFINE(S_R25, offsetof(struct pt_regs, UCreg_25));
79
+
DEFINE(S_R26, offsetof(struct pt_regs, UCreg_26));
80
+
DEFINE(S_FP, offsetof(struct pt_regs, UCreg_fp));
81
+
DEFINE(S_IP, offsetof(struct pt_regs, UCreg_ip));
82
+
DEFINE(S_SP, offsetof(struct pt_regs, UCreg_sp));
83
+
DEFINE(S_LR, offsetof(struct pt_regs, UCreg_lr));
84
+
DEFINE(S_PC, offsetof(struct pt_regs, UCreg_pc));
85
+
DEFINE(S_PSR, offsetof(struct pt_regs, UCreg_asr));
86
+
DEFINE(S_OLD_R0, offsetof(struct pt_regs, UCreg_ORIG_00));
87
+
DEFINE(S_FRAME_SIZE, sizeof(struct pt_regs));
88
+
BLANK();
89
+
DEFINE(VMA_VM_MM, offsetof(struct vm_area_struct, vm_mm));
90
+
DEFINE(VMA_VM_FLAGS, offsetof(struct vm_area_struct, vm_flags));
91
+
BLANK();
92
+
DEFINE(VM_EXEC, VM_EXEC);
93
+
BLANK();
94
+
DEFINE(PAGE_SZ, PAGE_SIZE);
95
+
BLANK();
96
+
DEFINE(SYS_ERROR0, 0x9f0000);
97
+
BLANK();
98
+
DEFINE(PBE_ADDRESS, offsetof(struct pbe, address));
99
+
DEFINE(PBE_ORIN_ADDRESS, offsetof(struct pbe, orig_address));
100
+
DEFINE(PBE_NEXT, offsetof(struct pbe, next));
101
+
DEFINE(SWSUSP_CPU, offsetof(struct swsusp_arch_regs, \
102
+
cpu_context));
103
+
#ifdef CONFIG_UNICORE_FPU_F64
104
+
DEFINE(SWSUSP_FPSTATE, offsetof(struct swsusp_arch_regs, \
105
+
fpstate));
106
+
#endif
107
+
BLANK();
108
+
DEFINE(DMA_BIDIRECTIONAL, DMA_BIDIRECTIONAL);
109
+
DEFINE(DMA_TO_DEVICE, DMA_TO_DEVICE);
110
+
DEFINE(DMA_FROM_DEVICE, DMA_FROM_DEVICE);
111
+
return 0;
112
+
}
+38
arch/unicore32/kernel/elf.c
+38
arch/unicore32/kernel/elf.c
···
1
+
/*
2
+
* linux/arch/unicore32/kernel/elf.c
3
+
*
4
+
* Code specific to PKUnity SoC and UniCore ISA
5
+
*
6
+
* Copyright (C) 2001-2010 GUAN Xue-tao
7
+
*
8
+
* This program is free software; you can redistribute it and/or modify
9
+
* it under the terms of the GNU General Public License version 2 as
10
+
* published by the Free Software Foundation.
11
+
*/
12
+
#include <linux/module.h>
13
+
#include <linux/sched.h>
14
+
#include <linux/personality.h>
15
+
#include <linux/binfmts.h>
16
+
#include <linux/elf.h>
17
+
18
+
int elf_check_arch(const struct elf32_hdr *x)
19
+
{
20
+
/* Make sure it's an UniCore executable */
21
+
if (x->e_machine != EM_UNICORE)
22
+
return 0;
23
+
24
+
/* Make sure the entry address is reasonable */
25
+
if (x->e_entry & 3)
26
+
return 0;
27
+
28
+
return 1;
29
+
}
30
+
EXPORT_SYMBOL(elf_check_arch);
31
+
32
+
void elf_set_personality(const struct elf32_hdr *x)
33
+
{
34
+
unsigned int personality = PER_LINUX;
35
+
36
+
set_personality(personality);
37
+
}
38
+
EXPORT_SYMBOL(elf_set_personality);
+99
arch/unicore32/kernel/ksyms.c
+99
arch/unicore32/kernel/ksyms.c
···
1
+
/*
2
+
* linux/arch/unicore32/kernel/ksyms.c
3
+
*
4
+
* Code specific to PKUnity SoC and UniCore ISA
5
+
*
6
+
* Copyright (C) 2001-2010 GUAN Xue-tao
7
+
*
8
+
* This program is free software; you can redistribute it and/or modify
9
+
* it under the terms of the GNU General Public License version 2 as
10
+
* published by the Free Software Foundation.
11
+
*/
12
+
#include <linux/module.h>
13
+
#include <linux/sched.h>
14
+
#include <linux/string.h>
15
+
#include <linux/cryptohash.h>
16
+
#include <linux/delay.h>
17
+
#include <linux/in6.h>
18
+
#include <linux/syscalls.h>
19
+
#include <linux/uaccess.h>
20
+
#include <linux/io.h>
21
+
22
+
#include <asm/checksum.h>
23
+
#include <asm/system.h>
24
+
25
+
#include "ksyms.h"
26
+
27
+
EXPORT_SYMBOL(__uc32_find_next_zero_bit);
28
+
EXPORT_SYMBOL(__uc32_find_next_bit);
29
+
30
+
EXPORT_SYMBOL(__backtrace);
31
+
32
+
/* platform dependent support */
33
+
EXPORT_SYMBOL(__udelay);
34
+
EXPORT_SYMBOL(__const_udelay);
35
+
36
+
/* networking */
37
+
EXPORT_SYMBOL(csum_partial);
38
+
EXPORT_SYMBOL(csum_partial_copy_from_user);
39
+
EXPORT_SYMBOL(csum_partial_copy_nocheck);
40
+
EXPORT_SYMBOL(__csum_ipv6_magic);
41
+
42
+
/* io */
43
+
#ifndef __raw_readsb
44
+
EXPORT_SYMBOL(__raw_readsb);
45
+
#endif
46
+
#ifndef __raw_readsw
47
+
EXPORT_SYMBOL(__raw_readsw);
48
+
#endif
49
+
#ifndef __raw_readsl
50
+
EXPORT_SYMBOL(__raw_readsl);
51
+
#endif
52
+
#ifndef __raw_writesb
53
+
EXPORT_SYMBOL(__raw_writesb);
54
+
#endif
55
+
#ifndef __raw_writesw
56
+
EXPORT_SYMBOL(__raw_writesw);
57
+
#endif
58
+
#ifndef __raw_writesl
59
+
EXPORT_SYMBOL(__raw_writesl);
60
+
#endif
61
+
62
+
/* string / mem functions */
63
+
EXPORT_SYMBOL(strchr);
64
+
EXPORT_SYMBOL(strrchr);
65
+
EXPORT_SYMBOL(memset);
66
+
EXPORT_SYMBOL(memcpy);
67
+
EXPORT_SYMBOL(memmove);
68
+
EXPORT_SYMBOL(memchr);
69
+
70
+
/* user mem (segment) */
71
+
EXPORT_SYMBOL(__strnlen_user);
72
+
EXPORT_SYMBOL(__strncpy_from_user);
73
+
74
+
EXPORT_SYMBOL(copy_page);
75
+
76
+
EXPORT_SYMBOL(__copy_from_user);
77
+
EXPORT_SYMBOL(__copy_to_user);
78
+
EXPORT_SYMBOL(__clear_user);
79
+
80
+
EXPORT_SYMBOL(__get_user_1);
81
+
EXPORT_SYMBOL(__get_user_2);
82
+
EXPORT_SYMBOL(__get_user_4);
83
+
84
+
EXPORT_SYMBOL(__put_user_1);
85
+
EXPORT_SYMBOL(__put_user_2);
86
+
EXPORT_SYMBOL(__put_user_4);
87
+
EXPORT_SYMBOL(__put_user_8);
88
+
89
+
EXPORT_SYMBOL(__ashldi3);
90
+
EXPORT_SYMBOL(__ashrdi3);
91
+
EXPORT_SYMBOL(__divsi3);
92
+
EXPORT_SYMBOL(__lshrdi3);
93
+
EXPORT_SYMBOL(__modsi3);
94
+
EXPORT_SYMBOL(__muldi3);
95
+
EXPORT_SYMBOL(__ucmpdi2);
96
+
EXPORT_SYMBOL(__udivsi3);
97
+
EXPORT_SYMBOL(__umodsi3);
98
+
EXPORT_SYMBOL(__bswapsi2);
99
+
+15
arch/unicore32/kernel/ksyms.h
+15
arch/unicore32/kernel/ksyms.h
···
1
+
/*
2
+
* libgcc functions - functions that are used internally by the
3
+
* compiler... (prototypes are not correct though, but that
4
+
* doesn't really matter since they're not versioned).
5
+
*/
6
+
extern void __ashldi3(void);
7
+
extern void __ashrdi3(void);
8
+
extern void __divsi3(void);
9
+
extern void __lshrdi3(void);
10
+
extern void __modsi3(void);
11
+
extern void __muldi3(void);
12
+
extern void __ucmpdi2(void);
13
+
extern void __udivsi3(void);
14
+
extern void __umodsi3(void);
15
+
extern void __bswapsi2(void);
+152
arch/unicore32/kernel/module.c
+152
arch/unicore32/kernel/module.c
···
1
+
/*
2
+
* linux/arch/unicore32/kernel/module.c
3
+
*
4
+
* Code specific to PKUnity SoC and UniCore ISA
5
+
*
6
+
* Copyright (C) 2001-2010 GUAN Xue-tao
7
+
*
8
+
* This program is free software; you can redistribute it and/or modify
9
+
* it under the terms of the GNU General Public License version 2 as
10
+
* published by the Free Software Foundation.
11
+
*/
12
+
#include <linux/module.h>
13
+
#include <linux/moduleloader.h>
14
+
#include <linux/kernel.h>
15
+
#include <linux/mm.h>
16
+
#include <linux/elf.h>
17
+
#include <linux/vmalloc.h>
18
+
#include <linux/fs.h>
19
+
#include <linux/string.h>
20
+
#include <linux/gfp.h>
21
+
22
+
#include <asm/pgtable.h>
23
+
#include <asm/sections.h>
24
+
25
+
void *module_alloc(unsigned long size)
26
+
{
27
+
struct vm_struct *area;
28
+
29
+
size = PAGE_ALIGN(size);
30
+
if (!size)
31
+
return NULL;
32
+
33
+
area = __get_vm_area(size, VM_ALLOC, MODULES_VADDR, MODULES_END);
34
+
if (!area)
35
+
return NULL;
36
+
37
+
return __vmalloc_area(area, GFP_KERNEL, PAGE_KERNEL_EXEC);
38
+
}
39
+
40
+
void module_free(struct module *module, void *region)
41
+
{
42
+
vfree(region);
43
+
}
44
+
45
+
int module_frob_arch_sections(Elf_Ehdr *hdr,
46
+
Elf_Shdr *sechdrs,
47
+
char *secstrings,
48
+
struct module *mod)
49
+
{
50
+
return 0;
51
+
}
52
+
53
+
int
54
+
apply_relocate(Elf32_Shdr *sechdrs, const char *strtab, unsigned int symindex,
55
+
unsigned int relindex, struct module *module)
56
+
{
57
+
Elf32_Shdr *symsec = sechdrs + symindex;
58
+
Elf32_Shdr *relsec = sechdrs + relindex;
59
+
Elf32_Shdr *dstsec = sechdrs + relsec->sh_info;
60
+
Elf32_Rel *rel = (void *)relsec->sh_addr;
61
+
unsigned int i;
62
+
63
+
for (i = 0; i < relsec->sh_size / sizeof(Elf32_Rel); i++, rel++) {
64
+
unsigned long loc;
65
+
Elf32_Sym *sym;
66
+
s32 offset;
67
+
68
+
offset = ELF32_R_SYM(rel->r_info);
69
+
if (offset < 0 || offset >
70
+
(symsec->sh_size / sizeof(Elf32_Sym))) {
71
+
printk(KERN_ERR "%s: bad relocation, "
72
+
"section %d reloc %d\n",
73
+
module->name, relindex, i);
74
+
return -ENOEXEC;
75
+
}
76
+
77
+
sym = ((Elf32_Sym *)symsec->sh_addr) + offset;
78
+
79
+
if (rel->r_offset < 0 || rel->r_offset >
80
+
dstsec->sh_size - sizeof(u32)) {
81
+
printk(KERN_ERR "%s: out of bounds relocation, "
82
+
"section %d reloc %d offset %d size %d\n",
83
+
module->name, relindex, i, rel->r_offset,
84
+
dstsec->sh_size);
85
+
return -ENOEXEC;
86
+
}
87
+
88
+
loc = dstsec->sh_addr + rel->r_offset;
89
+
90
+
switch (ELF32_R_TYPE(rel->r_info)) {
91
+
case R_UNICORE_NONE:
92
+
/* ignore */
93
+
break;
94
+
95
+
case R_UNICORE_ABS32:
96
+
*(u32 *)loc += sym->st_value;
97
+
break;
98
+
99
+
case R_UNICORE_PC24:
100
+
case R_UNICORE_CALL:
101
+
case R_UNICORE_JUMP24:
102
+
offset = (*(u32 *)loc & 0x00ffffff) << 2;
103
+
if (offset & 0x02000000)
104
+
offset -= 0x04000000;
105
+
106
+
offset += sym->st_value - loc;
107
+
if (offset & 3 ||
108
+
offset <= (s32)0xfe000000 ||
109
+
offset >= (s32)0x02000000) {
110
+
printk(KERN_ERR
111
+
"%s: relocation out of range, section "
112
+
"%d reloc %d sym '%s'\n", module->name,
113
+
relindex, i, strtab + sym->st_name);
114
+
return -ENOEXEC;
115
+
}
116
+
117
+
offset >>= 2;
118
+
119
+
*(u32 *)loc &= 0xff000000;
120
+
*(u32 *)loc |= offset & 0x00ffffff;
121
+
break;
122
+
123
+
default:
124
+
printk(KERN_ERR "%s: unknown relocation: %u\n",
125
+
module->name, ELF32_R_TYPE(rel->r_info));
126
+
return -ENOEXEC;
127
+
}
128
+
}
129
+
return 0;
130
+
}
131
+
132
+
int
133
+
apply_relocate_add(Elf32_Shdr *sechdrs, const char *strtab,
134
+
unsigned int symindex, unsigned int relsec,
135
+
struct module *module)
136
+
{
137
+
printk(KERN_ERR "module %s: ADD RELOCATION unsupported\n",
138
+
module->name);
139
+
return -ENOEXEC;
140
+
}
141
+
142
+
int
143
+
module_finalize(const Elf32_Ehdr *hdr, const Elf_Shdr *sechdrs,
144
+
struct module *module)
145
+
{
146
+
return 0;
147
+
}
148
+
149
+
void
150
+
module_arch_cleanup(struct module *mod)
151
+
{
152
+
}
+23
arch/unicore32/mm/proc-syms.c
+23
arch/unicore32/mm/proc-syms.c
···
1
+
/*
2
+
* linux/arch/unicore32/mm/proc-syms.c
3
+
*
4
+
* Code specific to PKUnity SoC and UniCore ISA
5
+
*
6
+
* Copyright (C) 2001-2010 GUAN Xue-tao
7
+
*
8
+
* This program is free software; you can redistribute it and/or modify
9
+
* it under the terms of the GNU General Public License version 2 as
10
+
* published by the Free Software Foundation.
11
+
*/
12
+
#include <linux/module.h>
13
+
#include <linux/mm.h>
14
+
15
+
#include <asm/cacheflush.h>
16
+
#include <asm/tlbflush.h>
17
+
#include <asm/page.h>
18
+
19
+
EXPORT_SYMBOL(cpu_dcache_clean_area);
20
+
EXPORT_SYMBOL(cpu_set_pte);
21
+
22
+
EXPORT_SYMBOL(__cpuc_dma_flush_range);
23
+
EXPORT_SYMBOL(__cpuc_dma_clean_range);