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Lines 1162-1194
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| 1162 |
} |
1162 |
} |
| 1163 |
#endif /* ! STAGE1_5 */ |
1163 |
#endif /* ! STAGE1_5 */ |
| 1164 |
|
1164 |
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|
1165 |
#ifdef __PIC__ |
| 1166 |
extern char _start[]; |
| 1167 |
extern char _end[]; |
| 1168 |
#endif |
| 1169 |
|
| 1165 |
int |
1170 |
int |
| 1166 |
memcheck (int addr, int len) |
1171 |
memcheck (int addr, int len) |
| 1167 |
{ |
1172 |
{ |
| 1168 |
#ifdef GRUB_UTIL |
1173 |
#ifdef GRUB_UTIL |
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|
1174 |
#ifdef __PIC__ |
| 1175 |
if (_start <= addr && _end > addr + len) |
| 1176 |
#else |
| 1169 |
static int start_addr (void) |
1177 |
static int start_addr (void) |
| 1170 |
{ |
1178 |
{ |
| 1171 |
int ret; |
1179 |
int ret; |
| 1172 |
# if defined(HAVE_START_SYMBOL) |
1180 |
# if defined(HAVE_START_SYMBOL) |
| 1173 |
asm volatile ("movl $start, %0" : "=a" (ret)); |
1181 |
asm volatile ("movl $start, %0" : "=a" (ret)); |
| 1174 |
# elif defined(HAVE_USCORE_START_SYMBOL) |
1182 |
# elif defined(HAVE_USCORE_START_SYMBOL) |
| 1175 |
asm volatile ("movl $_start, %0" : "=a" (ret)); |
1183 |
asm volatile ("movl $_start, %0" : "=a" (ret)); |
| 1176 |
# endif |
1184 |
# endif |
| 1177 |
return ret; |
1185 |
return ret; |
| 1178 |
} |
1186 |
} |
| 1179 |
|
1187 |
|
| 1180 |
static int end_addr (void) |
1188 |
static int end_addr (void) |
| 1181 |
{ |
1189 |
{ |
| 1182 |
int ret; |
1190 |
int ret; |
| 1183 |
# if defined(HAVE_END_SYMBOL) |
1191 |
# if defined(HAVE_END_SYMBOL) |
| 1184 |
asm volatile ("movl $end, %0" : "=a" (ret)); |
1192 |
asm volatile ("movl $end, %0" : "=a" (ret)); |
| 1185 |
# elif defined(HAVE_USCORE_END_SYMBOL) |
1193 |
# elif defined(HAVE_USCORE_END_SYMBOL) |
| 1186 |
asm volatile ("movl $_end, %0" : "=a" (ret)); |
1194 |
asm volatile ("movl $_end, %0" : "=a" (ret)); |
| 1187 |
# endif |
1195 |
# endif |
| 1188 |
return ret; |
1196 |
return ret; |
| 1189 |
} |
1197 |
} |
| 1190 |
|
1198 |
|
| 1191 |
if (start_addr () <= addr && end_addr () > addr + len) |
1199 |
if (start_addr () <= addr && end_addr () > addr + len) |
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|
1200 |
#endif |
| 1192 |
return ! errnum; |
1201 |
return ! errnum; |
| 1193 |
#endif /* GRUB_UTIL */ |
1202 |
#endif /* GRUB_UTIL */ |
| 1194 |
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1203 |
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