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authorMark A. Greer <mgreer@mvista.com>2007-03-27 18:29:50 -0400
committerPaul Mackerras <paulus@samba.org>2007-04-12 13:55:16 -0400
commit88e687313e683ee006152d611b95f40900e3bce0 (patch)
treef4929de1202fb2f16bce5b5bfc144b60c7f9571b /arch
parent5e41763ae9b4b6335fab88da85600f16d7a5a7b5 (diff)
[POWERPC] Move bootwrapper ELF parsing routines to a file
The ELF parsing routines local to arch/powerpc/boot/main.c are useful to other callers therefore move them to their own file. Signed-off-by: Mark A. Greer <mgreer@mvista.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/powerpc/boot/Makefile2
-rw-r--r--arch/powerpc/boot/elf.h8
-rw-r--r--arch/powerpc/boot/elf_util.c76
-rw-r--r--arch/powerpc/boot/main.c66
4 files changed, 85 insertions, 67 deletions
diff --git a/arch/powerpc/boot/Makefile b/arch/powerpc/boot/Makefile
index fac6ed0c5bcd..be001d923d3f 100644
--- a/arch/powerpc/boot/Makefile
+++ b/arch/powerpc/boot/Makefile
@@ -42,7 +42,7 @@ $(addprefix $(obj)/,$(zlib) main.o): $(addprefix $(obj)/,$(zliblinuxheader)) \
42 42
43src-wlib := string.S crt0.S stdio.c main.c flatdevtree.c flatdevtree_misc.c \ 43src-wlib := string.S crt0.S stdio.c main.c flatdevtree.c flatdevtree_misc.c \
44 ns16550.c serial.c simple_alloc.c div64.S util.S \ 44 ns16550.c serial.c simple_alloc.c div64.S util.S \
45 gunzip_util.c $(zlib) devtree.c 45 gunzip_util.c elf_util.c $(zlib) devtree.c
46src-plat := of.c 46src-plat := of.c
47src-boot := $(src-wlib) $(src-plat) empty.c 47src-boot := $(src-wlib) $(src-plat) empty.c
48 48
diff --git a/arch/powerpc/boot/elf.h b/arch/powerpc/boot/elf.h
index d4828fcf1cb9..1941bc50d4c5 100644
--- a/arch/powerpc/boot/elf.h
+++ b/arch/powerpc/boot/elf.h
@@ -146,4 +146,12 @@ typedef struct elf64_phdr {
146#define ELFOSABI_NONE 0 146#define ELFOSABI_NONE 0
147#define ELFOSABI_LINUX 3 147#define ELFOSABI_LINUX 3
148 148
149struct elf_info {
150 unsigned long loadsize;
151 unsigned long memsize;
152 unsigned long elfoffset;
153};
154int parse_elf64(void *hdr, struct elf_info *info);
155int parse_elf32(void *hdr, struct elf_info *info);
156
149#endif /* _PPC_BOOT_ELF_H_ */ 157#endif /* _PPC_BOOT_ELF_H_ */
diff --git a/arch/powerpc/boot/elf_util.c b/arch/powerpc/boot/elf_util.c
new file mode 100644
index 000000000000..7454aa4cc20c
--- /dev/null
+++ b/arch/powerpc/boot/elf_util.c
@@ -0,0 +1,76 @@
1/*
2 * Copyright (C) Paul Mackerras 1997.
3 *
4 * Updates for PPC64 by Todd Inglett, Dave Engebretsen & Peter Bergner.
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version
9 * 2 of the License, or (at your option) any later version.
10 */
11#include <stdarg.h>
12#include <stddef.h>
13#include "elf.h"
14#include "page.h"
15#include "string.h"
16#include "stdio.h"
17
18int parse_elf64(void *hdr, struct elf_info *info)
19{
20 Elf64_Ehdr *elf64 = hdr;
21 Elf64_Phdr *elf64ph;
22 unsigned int i;
23
24 if (!(elf64->e_ident[EI_MAG0] == ELFMAG0 &&
25 elf64->e_ident[EI_MAG1] == ELFMAG1 &&
26 elf64->e_ident[EI_MAG2] == ELFMAG2 &&
27 elf64->e_ident[EI_MAG3] == ELFMAG3 &&
28 elf64->e_ident[EI_CLASS] == ELFCLASS64 &&
29 elf64->e_ident[EI_DATA] == ELFDATA2MSB &&
30 elf64->e_type == ET_EXEC &&
31 elf64->e_machine == EM_PPC64))
32 return 0;
33
34 elf64ph = (Elf64_Phdr *)((unsigned long)elf64 +
35 (unsigned long)elf64->e_phoff);
36 for (i = 0; i < (unsigned int)elf64->e_phnum; i++, elf64ph++)
37 if (elf64ph->p_type == PT_LOAD)
38 break;
39 if (i >= (unsigned int)elf64->e_phnum)
40 return 0;
41
42 info->loadsize = (unsigned long)elf64ph->p_filesz;
43 info->memsize = (unsigned long)elf64ph->p_memsz;
44 info->elfoffset = (unsigned long)elf64ph->p_offset;
45
46 return 1;
47}
48
49int parse_elf32(void *hdr, struct elf_info *info)
50{
51 Elf32_Ehdr *elf32 = hdr;
52 Elf32_Phdr *elf32ph;
53 unsigned int i;
54
55 if (!(elf32->e_ident[EI_MAG0] == ELFMAG0 &&
56 elf32->e_ident[EI_MAG1] == ELFMAG1 &&
57 elf32->e_ident[EI_MAG2] == ELFMAG2 &&
58 elf32->e_ident[EI_MAG3] == ELFMAG3 &&
59 elf32->e_ident[EI_CLASS] == ELFCLASS32 &&
60 elf32->e_ident[EI_DATA] == ELFDATA2MSB &&
61 elf32->e_type == ET_EXEC &&
62 elf32->e_machine == EM_PPC))
63 return 0;
64
65 elf32ph = (Elf32_Phdr *) ((unsigned long)elf32 + elf32->e_phoff);
66 for (i = 0; i < elf32->e_phnum; i++, elf32ph++)
67 if (elf32ph->p_type == PT_LOAD)
68 break;
69 if (i >= elf32->e_phnum)
70 return 0;
71
72 info->loadsize = elf32ph->p_filesz;
73 info->memsize = elf32ph->p_memsz;
74 info->elfoffset = elf32ph->p_offset;
75 return 1;
76}
diff --git a/arch/powerpc/boot/main.c b/arch/powerpc/boot/main.c
index 03c0ccaecf29..30390621203d 100644
--- a/arch/powerpc/boot/main.c
+++ b/arch/powerpc/boot/main.c
@@ -36,76 +36,10 @@ struct addr_range {
36 unsigned long size; 36 unsigned long size;
37}; 37};
38 38
39struct elf_info {
40 unsigned long loadsize;
41 unsigned long memsize;
42 unsigned long elfoffset;
43};
44
45typedef void (*kernel_entry_t)(unsigned long, unsigned long, void *); 39typedef void (*kernel_entry_t)(unsigned long, unsigned long, void *);
46 40
47#undef DEBUG 41#undef DEBUG
48 42
49static int parse_elf64(void *hdr, struct elf_info *info)
50{
51 Elf64_Ehdr *elf64 = hdr;
52 Elf64_Phdr *elf64ph;
53 unsigned int i;
54
55 if (!(elf64->e_ident[EI_MAG0] == ELFMAG0 &&
56 elf64->e_ident[EI_MAG1] == ELFMAG1 &&
57 elf64->e_ident[EI_MAG2] == ELFMAG2 &&
58 elf64->e_ident[EI_MAG3] == ELFMAG3 &&
59 elf64->e_ident[EI_CLASS] == ELFCLASS64 &&
60 elf64->e_ident[EI_DATA] == ELFDATA2MSB &&
61 elf64->e_type == ET_EXEC &&
62 elf64->e_machine == EM_PPC64))
63 return 0;
64
65 elf64ph = (Elf64_Phdr *)((unsigned long)elf64 +
66 (unsigned long)elf64->e_phoff);
67 for (i = 0; i < (unsigned int)elf64->e_phnum; i++, elf64ph++)
68 if (elf64ph->p_type == PT_LOAD)
69 break;
70 if (i >= (unsigned int)elf64->e_phnum)
71 return 0;
72
73 info->loadsize = (unsigned long)elf64ph->p_filesz;
74 info->memsize = (unsigned long)elf64ph->p_memsz;
75 info->elfoffset = (unsigned long)elf64ph->p_offset;
76
77 return 1;
78}
79
80static int parse_elf32(void *hdr, struct elf_info *info)
81{
82 Elf32_Ehdr *elf32 = hdr;
83 Elf32_Phdr *elf32ph;
84 unsigned int i;
85
86 if (!(elf32->e_ident[EI_MAG0] == ELFMAG0 &&
87 elf32->e_ident[EI_MAG1] == ELFMAG1 &&
88 elf32->e_ident[EI_MAG2] == ELFMAG2 &&
89 elf32->e_ident[EI_MAG3] == ELFMAG3 &&
90 elf32->e_ident[EI_CLASS] == ELFCLASS32 &&
91 elf32->e_ident[EI_DATA] == ELFDATA2MSB &&
92 elf32->e_type == ET_EXEC &&
93 elf32->e_machine == EM_PPC))
94 return 0;
95
96 elf32ph = (Elf32_Phdr *) ((unsigned long)elf32 + elf32->e_phoff);
97 for (i = 0; i < elf32->e_phnum; i++, elf32ph++)
98 if (elf32ph->p_type == PT_LOAD)
99 break;
100 if (i >= elf32->e_phnum)
101 return 0;
102
103 info->loadsize = elf32ph->p_filesz;
104 info->memsize = elf32ph->p_memsz;
105 info->elfoffset = elf32ph->p_offset;
106 return 1;
107}
108
109static struct addr_range prep_kernel(void) 43static struct addr_range prep_kernel(void)
110{ 44{
111 char elfheader[256]; 45 char elfheader[256];
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-27 08:20:31 -0500