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1 | 7d13299d | bellard | /*
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2 | 7d13299d | bellard | * Generic Dynamic compiler generator
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3 | 7d13299d | bellard | *
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4 | 7d13299d | bellard | * Copyright (c) 2003 Fabrice Bellard
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5 | 7d13299d | bellard | *
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6 | 7d13299d | bellard | * This program is free software; you can redistribute it and/or modify
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7 | 7d13299d | bellard | * it under the terms of the GNU General Public License as published by
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8 | 7d13299d | bellard | * the Free Software Foundation; either version 2 of the License, or
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9 | 7d13299d | bellard | * (at your option) any later version.
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10 | 7d13299d | bellard | *
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11 | 7d13299d | bellard | * This program is distributed in the hope that it will be useful,
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12 | 7d13299d | bellard | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 | 7d13299d | bellard | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 | 7d13299d | bellard | * GNU General Public License for more details.
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15 | 7d13299d | bellard | *
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16 | 7d13299d | bellard | * You should have received a copy of the GNU General Public License
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17 | 7d13299d | bellard | * along with this program; if not, write to the Free Software
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18 | 7d13299d | bellard | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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19 | 7d13299d | bellard | */
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20 | 367e86e8 | bellard | #include <stdlib.h> |
21 | 367e86e8 | bellard | #include <stdio.h> |
22 | 04369ff2 | bellard | #include <string.h> |
23 | 367e86e8 | bellard | #include <stdarg.h> |
24 | 367e86e8 | bellard | #include <inttypes.h> |
25 | 367e86e8 | bellard | #include <unistd.h> |
26 | 367e86e8 | bellard | #include <fcntl.h> |
27 | 367e86e8 | bellard | |
28 | ce11fedc | bellard | #include "config.h" |
29 | ce11fedc | bellard | |
30 | ce11fedc | bellard | /* elf format definitions. We use these macros to test the CPU to
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31 | ce11fedc | bellard | allow cross compilation (this tool must be ran on the build
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32 | ce11fedc | bellard | platform) */
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33 | ce11fedc | bellard | #if defined(HOST_I386)
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34 | ce11fedc | bellard | |
35 | ce11fedc | bellard | #define ELF_CLASS ELFCLASS32
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36 | ce11fedc | bellard | #define ELF_ARCH EM_386
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37 | ce11fedc | bellard | #define elf_check_arch(x) ( ((x) == EM_386) || ((x) == EM_486) )
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38 | ce11fedc | bellard | #undef ELF_USES_RELOCA
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39 | ce11fedc | bellard | |
40 | ce11fedc | bellard | #elif defined(HOST_PPC)
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41 | ce11fedc | bellard | |
42 | ce11fedc | bellard | #define ELF_CLASS ELFCLASS32
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43 | ce11fedc | bellard | #define ELF_ARCH EM_PPC
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44 | ce11fedc | bellard | #define elf_check_arch(x) ((x) == EM_PPC)
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45 | ce11fedc | bellard | #define ELF_USES_RELOCA
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46 | ce11fedc | bellard | |
47 | ce11fedc | bellard | #elif defined(HOST_S390)
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48 | ce11fedc | bellard | |
49 | ce11fedc | bellard | #define ELF_CLASS ELFCLASS32
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50 | ce11fedc | bellard | #define ELF_ARCH EM_S390
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51 | ce11fedc | bellard | #define elf_check_arch(x) ((x) == EM_S390)
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52 | ce11fedc | bellard | #define ELF_USES_RELOCA
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53 | 367e86e8 | bellard | |
54 | ce11fedc | bellard | #elif defined(HOST_ALPHA)
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55 | ce11fedc | bellard | |
56 | ce11fedc | bellard | #define ELF_CLASS ELFCLASS64
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57 | ce11fedc | bellard | #define ELF_ARCH EM_ALPHA
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58 | ce11fedc | bellard | #define elf_check_arch(x) ((x) == EM_ALPHA)
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59 | ce11fedc | bellard | #define ELF_USES_RELOCA
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60 | ce11fedc | bellard | |
61 | ce11fedc | bellard | #else
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62 | ce11fedc | bellard | #error unsupported CPU - please update the code
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63 | ce11fedc | bellard | #endif
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64 | ce11fedc | bellard | |
65 | ce11fedc | bellard | #if ELF_CLASS == ELFCLASS32
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66 | ce11fedc | bellard | typedef int32_t host_long;
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67 | ce11fedc | bellard | typedef uint32_t host_ulong;
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68 | ce11fedc | bellard | #else
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69 | ce11fedc | bellard | typedef int64_t host_long;
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70 | ce11fedc | bellard | typedef uint64_t host_ulong;
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71 | fb3e5849 | bellard | #endif
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72 | fb3e5849 | bellard | |
73 | ce11fedc | bellard | #include "elf.h" |
74 | ce11fedc | bellard | |
75 | ce11fedc | bellard | #include "thunk.h" |
76 | ce11fedc | bellard | |
77 | 367e86e8 | bellard | /* all dynamically generated functions begin with this code */
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78 | dc99065b | bellard | #define OP_PREFIX "op_" |
79 | 367e86e8 | bellard | |
80 | ce11fedc | bellard | int elf_must_swap(struct elfhdr *h) |
81 | 367e86e8 | bellard | { |
82 | 367e86e8 | bellard | union {
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83 | 367e86e8 | bellard | uint32_t i; |
84 | 367e86e8 | bellard | uint8_t b[4];
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85 | 367e86e8 | bellard | } swaptest; |
86 | 367e86e8 | bellard | |
87 | 367e86e8 | bellard | swaptest.i = 1;
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88 | 367e86e8 | bellard | return (h->e_ident[EI_DATA] == ELFDATA2MSB) !=
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89 | 367e86e8 | bellard | (swaptest.b[0] == 0); |
90 | 367e86e8 | bellard | } |
91 | 367e86e8 | bellard | |
92 | 367e86e8 | bellard | void swab16s(uint16_t *p)
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93 | 367e86e8 | bellard | { |
94 | 367e86e8 | bellard | *p = bswap16(*p); |
95 | 367e86e8 | bellard | } |
96 | 367e86e8 | bellard | |
97 | 367e86e8 | bellard | void swab32s(uint32_t *p)
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98 | 367e86e8 | bellard | { |
99 | 367e86e8 | bellard | *p = bswap32(*p); |
100 | 367e86e8 | bellard | } |
101 | 367e86e8 | bellard | |
102 | ce11fedc | bellard | void swab64s(uint64_t *p)
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103 | 367e86e8 | bellard | { |
104 | 367e86e8 | bellard | *p = bswap64(*p); |
105 | 367e86e8 | bellard | } |
106 | 367e86e8 | bellard | |
107 | ce11fedc | bellard | #if ELF_CLASS == ELFCLASS32
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108 | ce11fedc | bellard | #define swabls(x) swab32s(x)
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109 | ce11fedc | bellard | #else
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110 | ce11fedc | bellard | #define swabls(x) swab64s(x)
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111 | ce11fedc | bellard | #endif
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112 | ce11fedc | bellard | |
113 | ce11fedc | bellard | void elf_swap_ehdr(struct elfhdr *h) |
114 | 367e86e8 | bellard | { |
115 | 367e86e8 | bellard | swab16s(&h->e_type); /* Object file type */
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116 | 367e86e8 | bellard | swab16s(&h-> e_machine); /* Architecture */
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117 | 367e86e8 | bellard | swab32s(&h-> e_version); /* Object file version */
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118 | ce11fedc | bellard | swabls(&h-> e_entry); /* Entry point virtual address */
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119 | ce11fedc | bellard | swabls(&h-> e_phoff); /* Program header table file offset */
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120 | ce11fedc | bellard | swabls(&h-> e_shoff); /* Section header table file offset */
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121 | 367e86e8 | bellard | swab32s(&h-> e_flags); /* Processor-specific flags */
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122 | 367e86e8 | bellard | swab16s(&h-> e_ehsize); /* ELF header size in bytes */
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123 | 367e86e8 | bellard | swab16s(&h-> e_phentsize); /* Program header table entry size */
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124 | 367e86e8 | bellard | swab16s(&h-> e_phnum); /* Program header table entry count */
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125 | 367e86e8 | bellard | swab16s(&h-> e_shentsize); /* Section header table entry size */
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126 | 367e86e8 | bellard | swab16s(&h-> e_shnum); /* Section header table entry count */
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127 | 367e86e8 | bellard | swab16s(&h-> e_shstrndx); /* Section header string table index */
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128 | 367e86e8 | bellard | } |
129 | 367e86e8 | bellard | |
130 | ce11fedc | bellard | void elf_swap_shdr(struct elf_shdr *h) |
131 | 367e86e8 | bellard | { |
132 | 367e86e8 | bellard | swab32s(&h-> sh_name); /* Section name (string tbl index) */
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133 | 367e86e8 | bellard | swab32s(&h-> sh_type); /* Section type */
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134 | ce11fedc | bellard | swabls(&h-> sh_flags); /* Section flags */
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135 | ce11fedc | bellard | swabls(&h-> sh_addr); /* Section virtual addr at execution */
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136 | ce11fedc | bellard | swabls(&h-> sh_offset); /* Section file offset */
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137 | ce11fedc | bellard | swabls(&h-> sh_size); /* Section size in bytes */
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138 | 367e86e8 | bellard | swab32s(&h-> sh_link); /* Link to another section */
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139 | 367e86e8 | bellard | swab32s(&h-> sh_info); /* Additional section information */
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140 | ce11fedc | bellard | swabls(&h-> sh_addralign); /* Section alignment */
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141 | ce11fedc | bellard | swabls(&h-> sh_entsize); /* Entry size if section holds table */
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142 | 367e86e8 | bellard | } |
143 | 367e86e8 | bellard | |
144 | ce11fedc | bellard | void elf_swap_phdr(struct elf_phdr *h) |
145 | 367e86e8 | bellard | { |
146 | 367e86e8 | bellard | swab32s(&h->p_type); /* Segment type */
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147 | ce11fedc | bellard | swabls(&h->p_offset); /* Segment file offset */
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148 | ce11fedc | bellard | swabls(&h->p_vaddr); /* Segment virtual address */
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149 | ce11fedc | bellard | swabls(&h->p_paddr); /* Segment physical address */
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150 | ce11fedc | bellard | swabls(&h->p_filesz); /* Segment size in file */
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151 | ce11fedc | bellard | swabls(&h->p_memsz); /* Segment size in memory */
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152 | 367e86e8 | bellard | swab32s(&h->p_flags); /* Segment flags */
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153 | ce11fedc | bellard | swabls(&h->p_align); /* Segment alignment */
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154 | 367e86e8 | bellard | } |
155 | 367e86e8 | bellard | |
156 | 367e86e8 | bellard | int do_swap;
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157 | 367e86e8 | bellard | |
158 | 367e86e8 | bellard | uint16_t get16(uint16_t *p) |
159 | 367e86e8 | bellard | { |
160 | 367e86e8 | bellard | uint16_t val; |
161 | 367e86e8 | bellard | val = *p; |
162 | 367e86e8 | bellard | if (do_swap)
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163 | 367e86e8 | bellard | val = bswap16(val); |
164 | 367e86e8 | bellard | return val;
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165 | 367e86e8 | bellard | } |
166 | 367e86e8 | bellard | |
167 | 367e86e8 | bellard | uint32_t get32(uint32_t *p) |
168 | 367e86e8 | bellard | { |
169 | 367e86e8 | bellard | uint32_t val; |
170 | 367e86e8 | bellard | val = *p; |
171 | 367e86e8 | bellard | if (do_swap)
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172 | 367e86e8 | bellard | val = bswap32(val); |
173 | 367e86e8 | bellard | return val;
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174 | 367e86e8 | bellard | } |
175 | 367e86e8 | bellard | |
176 | 367e86e8 | bellard | void put16(uint16_t *p, uint16_t val)
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177 | 367e86e8 | bellard | { |
178 | 367e86e8 | bellard | if (do_swap)
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179 | 367e86e8 | bellard | val = bswap16(val); |
180 | 367e86e8 | bellard | *p = val; |
181 | 367e86e8 | bellard | } |
182 | 367e86e8 | bellard | |
183 | 367e86e8 | bellard | void put32(uint32_t *p, uint32_t val)
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184 | 367e86e8 | bellard | { |
185 | 367e86e8 | bellard | if (do_swap)
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186 | 367e86e8 | bellard | val = bswap32(val); |
187 | 367e86e8 | bellard | *p = val; |
188 | 367e86e8 | bellard | } |
189 | 367e86e8 | bellard | |
190 | 367e86e8 | bellard | void __attribute__((noreturn)) error(const char *fmt, ...) |
191 | 367e86e8 | bellard | { |
192 | 367e86e8 | bellard | va_list ap; |
193 | 367e86e8 | bellard | va_start(ap, fmt); |
194 | 367e86e8 | bellard | fprintf(stderr, "dyngen: ");
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195 | 367e86e8 | bellard | vfprintf(stderr, fmt, ap); |
196 | 367e86e8 | bellard | fprintf(stderr, "\n");
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197 | 367e86e8 | bellard | va_end(ap); |
198 | 367e86e8 | bellard | exit(1);
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199 | 367e86e8 | bellard | } |
200 | 367e86e8 | bellard | |
201 | 367e86e8 | bellard | |
202 | ce11fedc | bellard | struct elf_shdr *find_elf_section(struct elf_shdr *shdr, int shnum, const char *shstr, |
203 | ce11fedc | bellard | const char *name) |
204 | 367e86e8 | bellard | { |
205 | 367e86e8 | bellard | int i;
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206 | 367e86e8 | bellard | const char *shname; |
207 | ce11fedc | bellard | struct elf_shdr *sec;
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208 | 367e86e8 | bellard | |
209 | 367e86e8 | bellard | for(i = 0; i < shnum; i++) { |
210 | 367e86e8 | bellard | sec = &shdr[i]; |
211 | 367e86e8 | bellard | if (!sec->sh_name)
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212 | 367e86e8 | bellard | continue;
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213 | 367e86e8 | bellard | shname = shstr + sec->sh_name; |
214 | 367e86e8 | bellard | if (!strcmp(shname, name))
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215 | 367e86e8 | bellard | return sec;
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216 | 367e86e8 | bellard | } |
217 | 367e86e8 | bellard | return NULL; |
218 | 367e86e8 | bellard | } |
219 | 367e86e8 | bellard | |
220 | 367e86e8 | bellard | void *load_data(int fd, long offset, unsigned int size) |
221 | 367e86e8 | bellard | { |
222 | 367e86e8 | bellard | char *data;
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223 | 367e86e8 | bellard | |
224 | 367e86e8 | bellard | data = malloc(size); |
225 | 367e86e8 | bellard | if (!data)
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226 | 367e86e8 | bellard | return NULL; |
227 | 367e86e8 | bellard | lseek(fd, offset, SEEK_SET); |
228 | 367e86e8 | bellard | if (read(fd, data, size) != size) {
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229 | 367e86e8 | bellard | free(data); |
230 | 367e86e8 | bellard | return NULL; |
231 | 367e86e8 | bellard | } |
232 | 367e86e8 | bellard | return data;
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233 | 367e86e8 | bellard | } |
234 | 367e86e8 | bellard | |
235 | 367e86e8 | bellard | int strstart(const char *str, const char *val, const char **ptr) |
236 | 367e86e8 | bellard | { |
237 | 367e86e8 | bellard | const char *p, *q; |
238 | 367e86e8 | bellard | p = str; |
239 | 367e86e8 | bellard | q = val; |
240 | 367e86e8 | bellard | while (*q != '\0') { |
241 | 367e86e8 | bellard | if (*p != *q)
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242 | 367e86e8 | bellard | return 0; |
243 | 367e86e8 | bellard | p++; |
244 | 367e86e8 | bellard | q++; |
245 | 367e86e8 | bellard | } |
246 | 367e86e8 | bellard | if (ptr)
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247 | 367e86e8 | bellard | *ptr = p; |
248 | 367e86e8 | bellard | return 1; |
249 | 367e86e8 | bellard | } |
250 | 367e86e8 | bellard | |
251 | 367e86e8 | bellard | #define MAX_ARGS 3 |
252 | 367e86e8 | bellard | |
253 | 367e86e8 | bellard | /* generate op code */
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254 | ce11fedc | bellard | void gen_code(const char *name, host_ulong offset, host_ulong size, |
255 | ce11fedc | bellard | FILE *outfile, uint8_t *text, ELF_RELOC *relocs, int nb_relocs, int reloc_sh_type, |
256 | ce11fedc | bellard | ElfW(Sym) *symtab, char *strtab, int gen_switch) |
257 | 367e86e8 | bellard | { |
258 | 367e86e8 | bellard | int copy_size = 0; |
259 | 367e86e8 | bellard | uint8_t *p_start, *p_end; |
260 | ce11fedc | bellard | int nb_args, i, n;
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261 | 367e86e8 | bellard | uint8_t args_present[MAX_ARGS]; |
262 | 367e86e8 | bellard | const char *sym_name, *p; |
263 | ce11fedc | bellard | ELF_RELOC *rel; |
264 | 367e86e8 | bellard | |
265 | 367e86e8 | bellard | /* compute exact size excluding return instruction */
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266 | 367e86e8 | bellard | p_start = text + offset; |
267 | 367e86e8 | bellard | p_end = p_start + size; |
268 | ce11fedc | bellard | switch(ELF_ARCH) {
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269 | 367e86e8 | bellard | case EM_386:
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270 | 367e86e8 | bellard | { |
271 | 367e86e8 | bellard | uint8_t *p; |
272 | 367e86e8 | bellard | p = p_end - 1;
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273 | 367e86e8 | bellard | if (p == p_start)
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274 | 367e86e8 | bellard | error("empty code for %s", name);
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275 | 4b74fe1f | bellard | if (p[0] != 0xc3) |
276 | 4b74fe1f | bellard | error("ret expected at the end of %s", name);
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277 | 367e86e8 | bellard | copy_size = p - p_start; |
278 | 367e86e8 | bellard | } |
279 | 367e86e8 | bellard | break;
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280 | 367e86e8 | bellard | case EM_PPC:
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281 | 367e86e8 | bellard | { |
282 | 367e86e8 | bellard | uint8_t *p; |
283 | 367e86e8 | bellard | p = (void *)(p_end - 4); |
284 | 367e86e8 | bellard | if (p == p_start)
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285 | 367e86e8 | bellard | error("empty code for %s", name);
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286 | 04369ff2 | bellard | if (get32((uint32_t *)p) != 0x4e800020) |
287 | 04369ff2 | bellard | error("blr expected at the end of %s", name);
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288 | 367e86e8 | bellard | copy_size = p - p_start; |
289 | 367e86e8 | bellard | } |
290 | 367e86e8 | bellard | break;
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291 | fb3e5849 | bellard | case EM_S390:
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292 | fb3e5849 | bellard | { |
293 | fb3e5849 | bellard | uint8_t *p; |
294 | fb3e5849 | bellard | p = (void *)(p_end - 2); |
295 | fb3e5849 | bellard | if (p == p_start)
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296 | fb3e5849 | bellard | error("empty code for %s", name);
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297 | fb3e5849 | bellard | if (get16((uint16_t *)p) != 0x07fe && get16((uint16_t *)p) != 0x07f4) |
298 | fb3e5849 | bellard | error("br %r14 expected at the end of %s", name);
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299 | fb3e5849 | bellard | copy_size = p - p_start; |
300 | fb3e5849 | bellard | } |
301 | fb3e5849 | bellard | break;
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302 | 367e86e8 | bellard | } |
303 | 367e86e8 | bellard | |
304 | 367e86e8 | bellard | /* compute the number of arguments by looking at the relocations */
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305 | 367e86e8 | bellard | for(i = 0;i < MAX_ARGS; i++) |
306 | 367e86e8 | bellard | args_present[i] = 0;
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307 | 367e86e8 | bellard | |
308 | ce11fedc | bellard | for(i = 0, rel = relocs;i < nb_relocs; i++, rel++) { |
309 | ce11fedc | bellard | if (rel->r_offset >= offset && rel->r_offset < offset + copy_size) {
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310 | ce11fedc | bellard | sym_name = strtab + symtab[ELFW(R_SYM)(rel->r_info)].st_name; |
311 | ce11fedc | bellard | if (strstart(sym_name, "__op_param", &p)) { |
312 | ce11fedc | bellard | n = strtoul(p, NULL, 10); |
313 | ce11fedc | bellard | if (n >= MAX_ARGS)
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314 | ce11fedc | bellard | error("too many arguments in %s", name);
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315 | ce11fedc | bellard | args_present[n - 1] = 1; |
316 | 367e86e8 | bellard | } |
317 | 367e86e8 | bellard | } |
318 | 367e86e8 | bellard | } |
319 | 367e86e8 | bellard | |
320 | 367e86e8 | bellard | nb_args = 0;
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321 | 367e86e8 | bellard | while (nb_args < MAX_ARGS && args_present[nb_args])
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322 | 367e86e8 | bellard | nb_args++; |
323 | 367e86e8 | bellard | for(i = nb_args; i < MAX_ARGS; i++) {
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324 | 367e86e8 | bellard | if (args_present[i])
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325 | 367e86e8 | bellard | error("inconsistent argument numbering in %s", name);
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326 | 367e86e8 | bellard | } |
327 | 367e86e8 | bellard | |
328 | 0ea00c9a | bellard | if (gen_switch == 2) { |
329 | 0ea00c9a | bellard | fprintf(outfile, "DEF(%s, %d)\n", name + 3, nb_args); |
330 | 0ea00c9a | bellard | } else if (gen_switch == 1) { |
331 | dc99065b | bellard | |
332 | dc99065b | bellard | /* output C code */
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333 | dc99065b | bellard | fprintf(outfile, "case INDEX_%s: {\n", name);
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334 | dc99065b | bellard | if (nb_args > 0) { |
335 | dc99065b | bellard | fprintf(outfile, " long ");
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336 | dc99065b | bellard | for(i = 0; i < nb_args; i++) { |
337 | dc99065b | bellard | if (i != 0) |
338 | dc99065b | bellard | fprintf(outfile, ", ");
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339 | dc99065b | bellard | fprintf(outfile, "param%d", i + 1); |
340 | dc99065b | bellard | } |
341 | dc99065b | bellard | fprintf(outfile, ";\n");
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342 | 367e86e8 | bellard | } |
343 | dc99065b | bellard | fprintf(outfile, " extern void %s();\n", name);
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344 | dc99065b | bellard | |
345 | ce11fedc | bellard | for(i = 0, rel = relocs;i < nb_relocs; i++, rel++) { |
346 | ce11fedc | bellard | if (rel->r_offset >= offset && rel->r_offset < offset + copy_size) {
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347 | ce11fedc | bellard | sym_name = strtab + symtab[ELF32_R_SYM(rel->r_info)].st_name; |
348 | ce11fedc | bellard | if (!strstart(sym_name, "__op_param", &p)) { |
349 | ce11fedc | bellard | fprintf(outfile, "extern char %s;\n", sym_name);
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350 | dc99065b | bellard | } |
351 | dc99065b | bellard | } |
352 | dc99065b | bellard | } |
353 | dc99065b | bellard | |
354 | dc99065b | bellard | fprintf(outfile, " memcpy(gen_code_ptr, &%s, %d);\n", name, copy_size);
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355 | dc99065b | bellard | for(i = 0; i < nb_args; i++) { |
356 | dc99065b | bellard | fprintf(outfile, " param%d = *opparam_ptr++;\n", i + 1); |
357 | dc99065b | bellard | } |
358 | dc99065b | bellard | |
359 | dc99065b | bellard | /* patch relocations */
|
360 | ce11fedc | bellard | #if defined(HOST_I386)
|
361 | dc99065b | bellard | { |
362 | dc99065b | bellard | char name[256]; |
363 | dc99065b | bellard | int type;
|
364 | ce11fedc | bellard | int addend;
|
365 | dc99065b | bellard | for(i = 0, rel = relocs;i < nb_relocs; i++, rel++) { |
366 | dc99065b | bellard | if (rel->r_offset >= offset && rel->r_offset < offset + copy_size) {
|
367 | dc99065b | bellard | sym_name = strtab + symtab[ELF32_R_SYM(rel->r_info)].st_name; |
368 | 367e86e8 | bellard | if (strstart(sym_name, "__op_param", &p)) { |
369 | 367e86e8 | bellard | snprintf(name, sizeof(name), "param%s", p); |
370 | 367e86e8 | bellard | } else {
|
371 | 367e86e8 | bellard | snprintf(name, sizeof(name), "(long)(&%s)", sym_name); |
372 | 367e86e8 | bellard | } |
373 | 367e86e8 | bellard | type = ELF32_R_TYPE(rel->r_info); |
374 | 367e86e8 | bellard | addend = get32((uint32_t *)(text + rel->r_offset)); |
375 | 367e86e8 | bellard | switch(type) {
|
376 | 367e86e8 | bellard | case R_386_32:
|
377 | ce11fedc | bellard | fprintf(outfile, " *(uint32_t *)(gen_code_ptr + %d) = %s + %d;\n",
|
378 | 367e86e8 | bellard | rel->r_offset - offset, name, addend); |
379 | 367e86e8 | bellard | break;
|
380 | 367e86e8 | bellard | case R_386_PC32:
|
381 | ce11fedc | bellard | fprintf(outfile, " *(uint32_t *)(gen_code_ptr + %d) = %s - (long)(gen_code_ptr + %d) + %d;\n",
|
382 | 367e86e8 | bellard | rel->r_offset - offset, name, rel->r_offset - offset, addend); |
383 | 367e86e8 | bellard | break;
|
384 | 367e86e8 | bellard | default:
|
385 | 367e86e8 | bellard | error("unsupported i386 relocation (%d)", type);
|
386 | 367e86e8 | bellard | } |
387 | 367e86e8 | bellard | } |
388 | dc99065b | bellard | } |
389 | dc99065b | bellard | } |
390 | ce11fedc | bellard | #elif defined(HOST_PPC)
|
391 | 04369ff2 | bellard | { |
392 | 04369ff2 | bellard | char name[256]; |
393 | 04369ff2 | bellard | int type;
|
394 | ce11fedc | bellard | int addend;
|
395 | 04369ff2 | bellard | for(i = 0, rel = relocs;i < nb_relocs; i++, rel++) { |
396 | 04369ff2 | bellard | if (rel->r_offset >= offset && rel->r_offset < offset + copy_size) {
|
397 | 04369ff2 | bellard | sym_name = strtab + symtab[ELF32_R_SYM(rel->r_info)].st_name; |
398 | 04369ff2 | bellard | if (strstart(sym_name, "__op_param", &p)) { |
399 | 04369ff2 | bellard | snprintf(name, sizeof(name), "param%s", p); |
400 | 04369ff2 | bellard | } else {
|
401 | 04369ff2 | bellard | snprintf(name, sizeof(name), "(long)(&%s)", sym_name); |
402 | 04369ff2 | bellard | } |
403 | 04369ff2 | bellard | type = ELF32_R_TYPE(rel->r_info); |
404 | 04369ff2 | bellard | addend = rel->r_addend; |
405 | 04369ff2 | bellard | switch(type) {
|
406 | 04369ff2 | bellard | case R_PPC_ADDR32:
|
407 | ce11fedc | bellard | fprintf(outfile, " *(uint32_t *)(gen_code_ptr + %d) = %s + %d;\n",
|
408 | 04369ff2 | bellard | rel->r_offset - offset, name, addend); |
409 | 04369ff2 | bellard | break;
|
410 | 04369ff2 | bellard | case R_PPC_ADDR16_LO:
|
411 | ce11fedc | bellard | fprintf(outfile, " *(uint16_t *)(gen_code_ptr + %d) = (%s + %d);\n",
|
412 | 04369ff2 | bellard | rel->r_offset - offset, name, addend); |
413 | 04369ff2 | bellard | break;
|
414 | 04369ff2 | bellard | case R_PPC_ADDR16_HI:
|
415 | ce11fedc | bellard | fprintf(outfile, " *(uint16_t *)(gen_code_ptr + %d) = (%s + %d) >> 16;\n",
|
416 | 04369ff2 | bellard | rel->r_offset - offset, name, addend); |
417 | 04369ff2 | bellard | break;
|
418 | 04369ff2 | bellard | case R_PPC_ADDR16_HA:
|
419 | ce11fedc | bellard | fprintf(outfile, " *(uint16_t *)(gen_code_ptr + %d) = (%s + %d + 0x8000) >> 16;\n",
|
420 | 04369ff2 | bellard | rel->r_offset - offset, name, addend); |
421 | 04369ff2 | bellard | break;
|
422 | 04369ff2 | bellard | case R_PPC_REL24:
|
423 | 04369ff2 | bellard | /* warning: must be at 32 MB distancy */
|
424 | ce11fedc | bellard | fprintf(outfile, " *(uint32_t *)(gen_code_ptr + %d) = (*(uint32_t *)(gen_code_ptr + %d) & ~0x03fffffc) | ((%s - (long)(gen_code_ptr + %d) + %d) & 0x03fffffc);\n",
|
425 | 04369ff2 | bellard | rel->r_offset - offset, rel->r_offset - offset, name, rel->r_offset - offset, addend); |
426 | 04369ff2 | bellard | break;
|
427 | 04369ff2 | bellard | default:
|
428 | 04369ff2 | bellard | error("unsupported powerpc relocation (%d)", type);
|
429 | 04369ff2 | bellard | } |
430 | 04369ff2 | bellard | } |
431 | 04369ff2 | bellard | } |
432 | 04369ff2 | bellard | } |
433 | ce11fedc | bellard | #elif defined(HOST_S390)
|
434 | fb3e5849 | bellard | { |
435 | fb3e5849 | bellard | char name[256]; |
436 | fb3e5849 | bellard | int type;
|
437 | ce11fedc | bellard | int addend;
|
438 | fb3e5849 | bellard | for(i = 0, rel = relocs;i < nb_relocs; i++, rel++) { |
439 | fb3e5849 | bellard | if (rel->r_offset >= offset && rel->r_offset < offset + copy_size) {
|
440 | fb3e5849 | bellard | sym_name = strtab + symtab[ELF32_R_SYM(rel->r_info)].st_name; |
441 | fb3e5849 | bellard | if (strstart(sym_name, "__op_param", &p)) { |
442 | fb3e5849 | bellard | snprintf(name, sizeof(name), "param%s", p); |
443 | fb3e5849 | bellard | } else {
|
444 | fb3e5849 | bellard | snprintf(name, sizeof(name), "(long)(&%s)", sym_name); |
445 | fb3e5849 | bellard | } |
446 | fb3e5849 | bellard | type = ELF32_R_TYPE(rel->r_info); |
447 | fb3e5849 | bellard | addend = rel->r_addend; |
448 | fb3e5849 | bellard | switch(type) {
|
449 | fb3e5849 | bellard | case R_390_32:
|
450 | ce11fedc | bellard | fprintf(outfile, " *(uint32_t *)(gen_code_ptr + %d) = %s + %d;\n",
|
451 | fb3e5849 | bellard | rel->r_offset - offset, name, addend); |
452 | fb3e5849 | bellard | break;
|
453 | fb3e5849 | bellard | case R_390_16:
|
454 | ce11fedc | bellard | fprintf(outfile, " *(uint16_t *)(gen_code_ptr + %d) = %s + %d;\n",
|
455 | fb3e5849 | bellard | rel->r_offset - offset, name, addend); |
456 | fb3e5849 | bellard | break;
|
457 | fb3e5849 | bellard | case R_390_8:
|
458 | ce11fedc | bellard | fprintf(outfile, " *(uint8_t *)(gen_code_ptr + %d) = %s + %d;\n",
|
459 | fb3e5849 | bellard | rel->r_offset - offset, name, addend); |
460 | fb3e5849 | bellard | break;
|
461 | fb3e5849 | bellard | default:
|
462 | fb3e5849 | bellard | error("unsupported s390 relocation (%d)", type);
|
463 | fb3e5849 | bellard | } |
464 | fb3e5849 | bellard | } |
465 | fb3e5849 | bellard | } |
466 | fb3e5849 | bellard | } |
467 | ce11fedc | bellard | #else
|
468 | ce11fedc | bellard | #error unsupported CPU
|
469 | ce11fedc | bellard | #endif
|
470 | dc99065b | bellard | fprintf(outfile, " gen_code_ptr += %d;\n", copy_size);
|
471 | dc99065b | bellard | fprintf(outfile, "}\n");
|
472 | dc99065b | bellard | fprintf(outfile, "break;\n\n");
|
473 | dc99065b | bellard | } else {
|
474 | dc99065b | bellard | fprintf(outfile, "static inline void gen_%s(", name);
|
475 | dc99065b | bellard | if (nb_args == 0) { |
476 | dc99065b | bellard | fprintf(outfile, "void");
|
477 | dc99065b | bellard | } else {
|
478 | dc99065b | bellard | for(i = 0; i < nb_args; i++) { |
479 | dc99065b | bellard | if (i != 0) |
480 | dc99065b | bellard | fprintf(outfile, ", ");
|
481 | dc99065b | bellard | fprintf(outfile, "long param%d", i + 1); |
482 | 367e86e8 | bellard | } |
483 | 367e86e8 | bellard | } |
484 | dc99065b | bellard | fprintf(outfile, ")\n");
|
485 | dc99065b | bellard | fprintf(outfile, "{\n");
|
486 | dc99065b | bellard | for(i = 0; i < nb_args; i++) { |
487 | dc99065b | bellard | fprintf(outfile, " *gen_opparam_ptr++ = param%d;\n", i + 1); |
488 | dc99065b | bellard | } |
489 | dc99065b | bellard | fprintf(outfile, " *gen_opc_ptr++ = INDEX_%s;\n", name);
|
490 | dc99065b | bellard | fprintf(outfile, "}\n\n");
|
491 | 367e86e8 | bellard | } |
492 | 367e86e8 | bellard | } |
493 | 367e86e8 | bellard | |
494 | 367e86e8 | bellard | /* load an elf object file */
|
495 | dc99065b | bellard | int load_elf(const char *filename, FILE *outfile, int do_print_enum) |
496 | 367e86e8 | bellard | { |
497 | 367e86e8 | bellard | int fd;
|
498 | ce11fedc | bellard | struct elfhdr ehdr;
|
499 | ce11fedc | bellard | struct elf_shdr *sec, *shdr, *symtab_sec, *strtab_sec, *text_sec;
|
500 | 367e86e8 | bellard | int i, j, nb_syms;
|
501 | ce11fedc | bellard | ElfW(Sym) *symtab, *sym; |
502 | 367e86e8 | bellard | char *shstr, *strtab;
|
503 | 367e86e8 | bellard | uint8_t *text; |
504 | 367e86e8 | bellard | void *relocs;
|
505 | 367e86e8 | bellard | int nb_relocs, reloc_sh_type;
|
506 | 367e86e8 | bellard | |
507 | 367e86e8 | bellard | fd = open(filename, O_RDONLY); |
508 | 367e86e8 | bellard | if (fd < 0) |
509 | 367e86e8 | bellard | error("can't open file '%s'", filename);
|
510 | 367e86e8 | bellard | |
511 | 367e86e8 | bellard | /* Read ELF header. */
|
512 | 367e86e8 | bellard | if (read(fd, &ehdr, sizeof (ehdr)) != sizeof (ehdr)) |
513 | 367e86e8 | bellard | error("unable to read file header");
|
514 | 367e86e8 | bellard | |
515 | 367e86e8 | bellard | /* Check ELF identification. */
|
516 | 367e86e8 | bellard | if (ehdr.e_ident[EI_MAG0] != ELFMAG0
|
517 | 367e86e8 | bellard | || ehdr.e_ident[EI_MAG1] != ELFMAG1 |
518 | 367e86e8 | bellard | || ehdr.e_ident[EI_MAG2] != ELFMAG2 |
519 | 367e86e8 | bellard | || ehdr.e_ident[EI_MAG3] != ELFMAG3 |
520 | 367e86e8 | bellard | || ehdr.e_ident[EI_VERSION] != EV_CURRENT) { |
521 | 367e86e8 | bellard | error("bad ELF header");
|
522 | 367e86e8 | bellard | } |
523 | 367e86e8 | bellard | |
524 | 367e86e8 | bellard | do_swap = elf_must_swap(&ehdr); |
525 | 367e86e8 | bellard | if (do_swap)
|
526 | 367e86e8 | bellard | elf_swap_ehdr(&ehdr); |
527 | ce11fedc | bellard | if (ehdr.e_ident[EI_CLASS] != ELF_CLASS)
|
528 | ce11fedc | bellard | error("Unsupported ELF class");
|
529 | 367e86e8 | bellard | if (ehdr.e_type != ET_REL)
|
530 | 367e86e8 | bellard | error("ELF object file expected");
|
531 | 367e86e8 | bellard | if (ehdr.e_version != EV_CURRENT)
|
532 | 367e86e8 | bellard | error("Invalid ELF version");
|
533 | ce11fedc | bellard | if (!elf_check_arch(ehdr.e_machine))
|
534 | ce11fedc | bellard | error("Unsupported CPU (e_machine=%d)", ehdr.e_machine);
|
535 | 367e86e8 | bellard | |
536 | 367e86e8 | bellard | /* read section headers */
|
537 | ce11fedc | bellard | shdr = load_data(fd, ehdr.e_shoff, ehdr.e_shnum * sizeof(struct elf_shdr)); |
538 | 367e86e8 | bellard | if (do_swap) {
|
539 | 367e86e8 | bellard | for(i = 0; i < ehdr.e_shnum; i++) { |
540 | 367e86e8 | bellard | elf_swap_shdr(&shdr[i]); |
541 | 367e86e8 | bellard | } |
542 | 367e86e8 | bellard | } |
543 | 367e86e8 | bellard | |
544 | 367e86e8 | bellard | sec = &shdr[ehdr.e_shstrndx]; |
545 | 367e86e8 | bellard | shstr = load_data(fd, sec->sh_offset, sec->sh_size); |
546 | 367e86e8 | bellard | |
547 | 367e86e8 | bellard | /* text section */
|
548 | 367e86e8 | bellard | |
549 | 367e86e8 | bellard | text_sec = find_elf_section(shdr, ehdr.e_shnum, shstr, ".text");
|
550 | 367e86e8 | bellard | if (!text_sec)
|
551 | 367e86e8 | bellard | error("could not find .text section");
|
552 | 367e86e8 | bellard | text = load_data(fd, text_sec->sh_offset, text_sec->sh_size); |
553 | 367e86e8 | bellard | |
554 | 367e86e8 | bellard | /* find text relocations, if any */
|
555 | 367e86e8 | bellard | nb_relocs = 0;
|
556 | 367e86e8 | bellard | relocs = NULL;
|
557 | 367e86e8 | bellard | reloc_sh_type = 0;
|
558 | 367e86e8 | bellard | for(i = 0; i < ehdr.e_shnum; i++) { |
559 | 367e86e8 | bellard | sec = &shdr[i]; |
560 | 367e86e8 | bellard | if ((sec->sh_type == SHT_REL || sec->sh_type == SHT_RELA) &&
|
561 | 367e86e8 | bellard | sec->sh_info == (text_sec - shdr)) { |
562 | 367e86e8 | bellard | reloc_sh_type = sec->sh_type; |
563 | 367e86e8 | bellard | relocs = load_data(fd, sec->sh_offset, sec->sh_size); |
564 | 367e86e8 | bellard | nb_relocs = sec->sh_size / sec->sh_entsize; |
565 | 367e86e8 | bellard | if (do_swap) {
|
566 | 367e86e8 | bellard | if (sec->sh_type == SHT_REL) {
|
567 | 367e86e8 | bellard | Elf32_Rel *rel = relocs; |
568 | 367e86e8 | bellard | for(j = 0, rel = relocs; j < nb_relocs; j++, rel++) { |
569 | 367e86e8 | bellard | swab32s(&rel->r_offset); |
570 | 367e86e8 | bellard | swab32s(&rel->r_info); |
571 | 367e86e8 | bellard | } |
572 | 367e86e8 | bellard | } else {
|
573 | 367e86e8 | bellard | Elf32_Rela *rel = relocs; |
574 | 367e86e8 | bellard | for(j = 0, rel = relocs; j < nb_relocs; j++, rel++) { |
575 | 367e86e8 | bellard | swab32s(&rel->r_offset); |
576 | 367e86e8 | bellard | swab32s(&rel->r_info); |
577 | 367e86e8 | bellard | swab32s(&rel->r_addend); |
578 | 367e86e8 | bellard | } |
579 | 367e86e8 | bellard | } |
580 | 367e86e8 | bellard | } |
581 | 367e86e8 | bellard | break;
|
582 | 367e86e8 | bellard | } |
583 | 367e86e8 | bellard | } |
584 | 367e86e8 | bellard | |
585 | 367e86e8 | bellard | symtab_sec = find_elf_section(shdr, ehdr.e_shnum, shstr, ".symtab");
|
586 | 367e86e8 | bellard | if (!symtab_sec)
|
587 | 367e86e8 | bellard | error("could not find .symtab section");
|
588 | 367e86e8 | bellard | strtab_sec = &shdr[symtab_sec->sh_link]; |
589 | 367e86e8 | bellard | |
590 | 367e86e8 | bellard | symtab = load_data(fd, symtab_sec->sh_offset, symtab_sec->sh_size); |
591 | 367e86e8 | bellard | strtab = load_data(fd, strtab_sec->sh_offset, strtab_sec->sh_size); |
592 | 367e86e8 | bellard | |
593 | 367e86e8 | bellard | nb_syms = symtab_sec->sh_size / sizeof(Elf32_Sym);
|
594 | 367e86e8 | bellard | if (do_swap) {
|
595 | 367e86e8 | bellard | for(i = 0, sym = symtab; i < nb_syms; i++, sym++) { |
596 | 367e86e8 | bellard | swab32s(&sym->st_name); |
597 | ce11fedc | bellard | swabls(&sym->st_value); |
598 | ce11fedc | bellard | swabls(&sym->st_size); |
599 | 367e86e8 | bellard | swab16s(&sym->st_shndx); |
600 | 367e86e8 | bellard | } |
601 | 367e86e8 | bellard | } |
602 | 367e86e8 | bellard | |
603 | dc99065b | bellard | if (do_print_enum) {
|
604 | 0ea00c9a | bellard | fprintf(outfile, "DEF(end, 0)\n");
|
605 | dc99065b | bellard | for(i = 0, sym = symtab; i < nb_syms; i++, sym++) { |
606 | dc99065b | bellard | const char *name, *p; |
607 | dc99065b | bellard | name = strtab + sym->st_name; |
608 | dc99065b | bellard | if (strstart(name, OP_PREFIX, &p)) {
|
609 | 0ea00c9a | bellard | gen_code(name, sym->st_value, sym->st_size, outfile, |
610 | 0ea00c9a | bellard | text, relocs, nb_relocs, reloc_sh_type, symtab, strtab, 2);
|
611 | dc99065b | bellard | } |
612 | dc99065b | bellard | } |
613 | dc99065b | bellard | } else {
|
614 | dc99065b | bellard | /* generate big code generation switch */
|
615 | dc99065b | bellard | fprintf(outfile, |
616 | dc99065b | bellard | "int dyngen_code(uint8_t *gen_code_buf,\n"
|
617 | dc99065b | bellard | " const uint16_t *opc_buf, const uint32_t *opparam_buf)\n"
|
618 | dc99065b | bellard | "{\n"
|
619 | dc99065b | bellard | " uint8_t *gen_code_ptr;\n"
|
620 | dc99065b | bellard | " const uint16_t *opc_ptr;\n"
|
621 | dc99065b | bellard | " const uint32_t *opparam_ptr;\n"
|
622 | dc99065b | bellard | " gen_code_ptr = gen_code_buf;\n"
|
623 | dc99065b | bellard | " opc_ptr = opc_buf;\n"
|
624 | dc99065b | bellard | " opparam_ptr = opparam_buf;\n"
|
625 | dc99065b | bellard | " for(;;) {\n"
|
626 | dc99065b | bellard | " switch(*opc_ptr++) {\n"
|
627 | dc99065b | bellard | ); |
628 | 367e86e8 | bellard | |
629 | dc99065b | bellard | for(i = 0, sym = symtab; i < nb_syms; i++, sym++) { |
630 | dc99065b | bellard | const char *name; |
631 | dc99065b | bellard | name = strtab + sym->st_name; |
632 | dc99065b | bellard | if (strstart(name, OP_PREFIX, NULL)) { |
633 | 367e86e8 | bellard | #if 0
|
634 | dc99065b | bellard | printf("%4d: %s pos=0x%08x len=%d\n",
|
635 | dc99065b | bellard | i, name, sym->st_value, sym->st_size);
|
636 | 367e86e8 | bellard | #endif
|
637 | dc99065b | bellard | if (sym->st_shndx != (text_sec - shdr))
|
638 | dc99065b | bellard | error("invalid section for opcode (0x%x)", sym->st_shndx);
|
639 | dc99065b | bellard | gen_code(name, sym->st_value, sym->st_size, outfile, |
640 | dc99065b | bellard | text, relocs, nb_relocs, reloc_sh_type, symtab, strtab, 1);
|
641 | dc99065b | bellard | } |
642 | dc99065b | bellard | } |
643 | dc99065b | bellard | |
644 | dc99065b | bellard | fprintf(outfile, |
645 | dc99065b | bellard | " default:\n"
|
646 | dc99065b | bellard | " goto the_end;\n"
|
647 | dc99065b | bellard | " }\n"
|
648 | dc99065b | bellard | " }\n"
|
649 | dc99065b | bellard | " the_end:\n"
|
650 | dc99065b | bellard | ); |
651 | dc99065b | bellard | |
652 | dc99065b | bellard | /* generate a return */
|
653 | ce11fedc | bellard | switch(ELF_ARCH) {
|
654 | dc99065b | bellard | case EM_386:
|
655 | dc99065b | bellard | fprintf(outfile, "*gen_code_ptr++ = 0xc3; /* ret */\n");
|
656 | dc99065b | bellard | break;
|
657 | 04369ff2 | bellard | case EM_PPC:
|
658 | 04369ff2 | bellard | fprintf(outfile, "*((uint32_t *)gen_code_ptr)++ = 0x4e800020; /* blr */\n");
|
659 | 04369ff2 | bellard | break;
|
660 | fb3e5849 | bellard | case EM_S390:
|
661 | fb3e5849 | bellard | fprintf(outfile, "*((uint16_t *)gen_code_ptr)++ = 0x07fe; /* br %%r14 */\n");
|
662 | fb3e5849 | bellard | break;
|
663 | dc99065b | bellard | } |
664 | dc99065b | bellard | |
665 | dc99065b | bellard | fprintf(outfile, "return gen_code_ptr - gen_code_buf;\n");
|
666 | dc99065b | bellard | fprintf(outfile, "}\n\n");
|
667 | dc99065b | bellard | |
668 | dc99065b | bellard | /* generate gen_xxx functions */
|
669 | dc99065b | bellard | /* XXX: suppress the use of these functions to simplify code */
|
670 | dc99065b | bellard | for(i = 0, sym = symtab; i < nb_syms; i++, sym++) { |
671 | dc99065b | bellard | const char *name; |
672 | dc99065b | bellard | name = strtab + sym->st_name; |
673 | dc99065b | bellard | if (strstart(name, OP_PREFIX, NULL)) { |
674 | dc99065b | bellard | if (sym->st_shndx != (text_sec - shdr))
|
675 | dc99065b | bellard | error("invalid section for opcode (0x%x)", sym->st_shndx);
|
676 | dc99065b | bellard | gen_code(name, sym->st_value, sym->st_size, outfile, |
677 | dc99065b | bellard | text, relocs, nb_relocs, reloc_sh_type, symtab, strtab, 0);
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678 | dc99065b | bellard | } |
679 | 367e86e8 | bellard | } |
680 | 367e86e8 | bellard | } |
681 | 367e86e8 | bellard | |
682 | 367e86e8 | bellard | close(fd); |
683 | 367e86e8 | bellard | return 0; |
684 | 367e86e8 | bellard | } |
685 | 367e86e8 | bellard | |
686 | 367e86e8 | bellard | void usage(void) |
687 | 367e86e8 | bellard | { |
688 | 367e86e8 | bellard | printf("dyngen (c) 2003 Fabrice Bellard\n"
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689 | dc99065b | bellard | "usage: dyngen [-o outfile] [-c] objfile\n"
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690 | dc99065b | bellard | "Generate a dynamic code generator from an object file\n"
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691 | dc99065b | bellard | "-c output enum of operations\n"
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692 | dc99065b | bellard | ); |
693 | 367e86e8 | bellard | exit(1);
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694 | 367e86e8 | bellard | } |
695 | 367e86e8 | bellard | |
696 | 367e86e8 | bellard | int main(int argc, char **argv) |
697 | 367e86e8 | bellard | { |
698 | dc99065b | bellard | int c, do_print_enum;
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699 | 367e86e8 | bellard | const char *filename, *outfilename; |
700 | 367e86e8 | bellard | FILE *outfile; |
701 | 367e86e8 | bellard | |
702 | 367e86e8 | bellard | outfilename = "out.c";
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703 | dc99065b | bellard | do_print_enum = 0;
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704 | 367e86e8 | bellard | for(;;) {
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705 | dc99065b | bellard | c = getopt(argc, argv, "ho:c");
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706 | 367e86e8 | bellard | if (c == -1) |
707 | 367e86e8 | bellard | break;
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708 | 367e86e8 | bellard | switch(c) {
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709 | 367e86e8 | bellard | case 'h': |
710 | 367e86e8 | bellard | usage(); |
711 | 367e86e8 | bellard | break;
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712 | 367e86e8 | bellard | case 'o': |
713 | 367e86e8 | bellard | outfilename = optarg; |
714 | 367e86e8 | bellard | break;
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715 | dc99065b | bellard | case 'c': |
716 | dc99065b | bellard | do_print_enum = 1;
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717 | dc99065b | bellard | break;
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718 | 367e86e8 | bellard | } |
719 | 367e86e8 | bellard | } |
720 | 367e86e8 | bellard | if (optind >= argc)
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721 | 367e86e8 | bellard | usage(); |
722 | 367e86e8 | bellard | filename = argv[optind]; |
723 | 367e86e8 | bellard | outfile = fopen(outfilename, "w");
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724 | 367e86e8 | bellard | if (!outfile)
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725 | 367e86e8 | bellard | error("could not open '%s'", outfilename);
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726 | dc99065b | bellard | load_elf(filename, outfile, do_print_enum); |
727 | 367e86e8 | bellard | fclose(outfile); |
728 | 367e86e8 | bellard | return 0; |
729 | 367e86e8 | bellard | } |