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Add text_size and data_size to struct exec_info

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This commit is contained in:
Xiaoguang Sun 2013-05-30 11:09:24 +00:00
parent 3d257f8073
commit a32f59cbb2
2 changed files with 7 additions and 0 deletions
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5
lib/libexec/exec_elf.c
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@ -228,6 +228,11 @@ int libexec_load_elf(struct exec_info *execi)
if(first || startv > vaddr) startv = vaddr;
first = 0;
if ((ph->p_flags & PF_X) != 0 && execi->text_size < seg_membytes)
execi->text_size = seg_membytes;
else
execi->data_size = seg_membytes;
if(try_mmap && execi->memmap(execi, vaddr, fbytes, foffset, clearend, mmap_prot) == OK) {
#if ELF_DEBUG
printf("libexec: mmap 0x%lx-0x%lx done, clearend 0x%x\n",

2
lib/libexec/libexec.h
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@ -32,6 +32,8 @@ struct exec_info {
int allow_setuid; /* Allow set{u,g}id execution? */
vir_bytes stack_size; /* Desired stack size */
vir_bytes load_offset; /* Desired load offset */
vir_bytes text_size; /* Text segment size */
vir_bytes data_size; /* Data segment size */
off_t filesize; /* How big is the file */
/* Callback pointers for use by libexec */