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Fix non-loading of BSS

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This commit is contained in:
Vladimir 'phcoder' Serbinenko 2010-08-24 19:33:08 +02:00
parent 79f8b757ce
commit ffadea42bb
1 changed files with 12 additions and 9 deletions
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21
loader/multiboot_elfxx.c
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@ -88,7 +88,7 @@ CONCAT(grub_multiboot_load_elf, XX) (grub_file_t file, void *buffer)
/* Load every loadable segment in memory. */
for (i = 0; i < ehdr->e_phnum; i++)
{
if (phdr(i)->p_type == PT_LOAD && phdr(i)->p_filesz != 0)
if (phdr(i)->p_type == PT_LOAD)
{
grub_err_t err;
void *source;
@ -109,15 +109,18 @@ CONCAT(grub_multiboot_load_elf, XX) (grub_file_t file, void *buffer)
source = get_virtual_current_address (ch);
}
if (grub_file_seek (file, (grub_off_t) phdr(i)->p_offset)
== (grub_off_t) -1)
return grub_error (GRUB_ERR_BAD_OS,
"invalid offset in program header");
if (phdr(i)->p_filesz != 0)
{
if (grub_file_seek (file, (grub_off_t) phdr(i)->p_offset)
== (grub_off_t) -1)
return grub_error (GRUB_ERR_BAD_OS,
"invalid offset in program header");
if (grub_file_read (file, source, phdr(i)->p_filesz)
!= (grub_ssize_t) phdr(i)->p_filesz)
return grub_error (GRUB_ERR_BAD_OS,
"couldn't read segment from file");
if (grub_file_read (file, source, phdr(i)->p_filesz)
!= (grub_ssize_t) phdr(i)->p_filesz)
return grub_error (GRUB_ERR_BAD_OS,
"couldn't read segment from file");
}
if (phdr(i)->p_filesz < phdr(i)->p_memsz)
grub_memset ((grub_uint8_t *) source + phdr(i)->p_filesz, 0,