diff options
Diffstat (limited to 'linux-user/elfload.c')
| -rw-r--r-- | linux-user/elfload.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/linux-user/elfload.c b/linux-user/elfload.c index d31cca7..d4c9274 100644 --- a/linux-user/elfload.c +++ b/linux-user/elfload.c @@ -1545,6 +1545,29 @@ int load_elf_binary(struct linux_binprm * bprm, struct target_pt_regs * regs, info->mmap = 0; elf_entry = (abi_ulong) elf_ex.e_entry; +#if defined(CONFIG_USE_GUEST_BASE) + /* + * In case where user has not explicitly set the guest_base, we + * probe here that should we set it automatically. + */ + if (!have_guest_base) { + /* + * Go through ELF program header table and find out whether + * any of the segments drop below our current mmap_min_addr and + * in that case set guest_base to corresponding address. + */ + for (i = 0, elf_ppnt = elf_phdata; i < elf_ex.e_phnum; + i++, elf_ppnt++) { + if (elf_ppnt->p_type != PT_LOAD) + continue; + if (HOST_PAGE_ALIGN(elf_ppnt->p_vaddr) < mmap_min_addr) { + guest_base = HOST_PAGE_ALIGN(mmap_min_addr); + break; + } + } + } +#endif /* CONFIG_USE_GUEST_BASE */ + /* Do this so that we can load the interpreter, if need be. We will change some of these later */ info->rss = 0; |