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Fixed a fault with posix tasks not getting their LMA correctly

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This commit is contained in:
Bahadir Balban
2009-10-01 13:13:27 +03:00
parent 70a3bb35f5
commit e5cde20ca9
6 changed files with 35 additions and 19 deletions
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24
loader/libs/elf/src/elf.c
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@@ -350,6 +350,11 @@ elf_loadFile(void *elfFile, bool phys)
//printf("Number of program headers: %d\n", num_pheaders);
//printf("Program header offset of first header from file beginning: 0x%p\n",pheader_offset);
/*
* FIXME:
* This should have a linked list of mapped ranges so that it can check
* at run-time whether any images are overlapping in their LMA and refuse to load.
*/
for(i=0; i < num_pheaders; i++) {
/* Load that section */
uint64_t dest, src;
@@ -357,11 +362,11 @@ elf_loadFile(void *elfFile, bool phys)
size_t len;
if (phys) {
dest = elf_getProgramHeaderPaddr(elfFile, i);
// printf("Elf file pheader physical: %p\n", dest);
// printf("Elf file pheader virtual: %p\n",
// elf_getProgramHeaderVaddr(elfFile,i));
// printf("Elf file pheader physical: 0x%x\n", (unsigned int)dest);
// printf("Elf file pheader virtual: 0x%x\n",
// (unsigned int)elf_getProgramHeaderVaddr(elfFile,i));
} else {
// printf("Elf file pheader virtual: %p\n", dest);
// printf("Elf file pheader virtual: 0x%x\n", (unsigned int)dest);
dest = elf_getProgramHeaderVaddr(elfFile, i);
}
len = elf_getProgramHeaderFileSize(elfFile, i);
@@ -370,14 +375,19 @@ elf_loadFile(void *elfFile, bool phys)
// printf("Elf program header offset: %p\n", src);
pheader_type = elf_getProgramHeaderType(elfFile, i);
// printf("Elf program header type: %p\n", pheader_type);
// printf("Copying from %x to %x of size: %p\n", (unsigned int)src, (unsigned int)dest, len);
/* Enable this one
printf("Copying to range from 0x%x to 0x%x of size: 0x%x\n", (unsigned int)dest, (unsigned int)dest + (unsigned int)len, (unsigned int)len);
*/
memcpy((void*) (uintptr_t) dest, (void*) (uintptr_t) src, len);
dest += len;
clrsize = elf_getProgramHeaderMemorySize(elfFile, i) - len;
// printf("Clearing memory... starting from %x, size: %x\n", (unsigned int)dest, clrsize);
// printf("Clearing memory... starting from %x, size: %x\n", (unsigned int)dest, (unsigned int)clrsize);
memset((void*) (uintptr_t) dest, 0, clrsize);
// printf("Memory cleared.\n");
// printf("Memory cleared.\n");
}
// And this one
// printf("\n");
return true;
}

4
loader/main.c
View File

@@ -121,9 +121,9 @@ int main(void)
printf("elf-loader:\tkernel entry point is %lx\n", *kernel_entry);
arch_start_kernel(kernel_entry);
printf("elf-loader:\tKernel start failed!\n");
printf("elf-loader:\tKernel start failed! Looping endless.\n");
while (1)
printf("Endless loop.\n");
;
return -1;
}