diff --git a/linux-user/elfload.c b/linux-user/elfload.c index 190ad14..e4e75d5 100644 --- a/linux-user/elfload.c +++ b/linux-user/elfload.c @@ -1211,7 +1211,7 @@ int load_elf_binary(struct linux_binprm * bprm, struct target_pt_regs * regs, abi_ulong mapped_addr; struct elf_phdr * elf_ppnt; struct elf_phdr *elf_phdata; - abi_ulong elf_bss, k, elf_brk; + abi_ulong elf_bss, last_bss, mapped_bss, k, elf_brk; int retval; char * elf_interpreter; abi_ulong elf_entry, interp_load_addr = 0; @@ -1271,6 +1271,7 @@ int load_elf_binary(struct linux_binprm * bprm, struct target_pt_regs * regs, elf_ppnt = elf_phdata; elf_bss = 0; + last_bss = 0; elf_brk = 0; @@ -1495,12 +1496,24 @@ int load_elf_binary(struct linux_binprm * bprm, struct target_pt_regs * regs, k = elf_ppnt->p_vaddr + elf_ppnt->p_filesz; if (k > elf_bss) elf_bss = k; + k = elf_ppnt->p_vaddr + elf_ppnt->p_memsz; + if (k > last_bss) + last_bss = k; if ((elf_ppnt->p_flags & PF_X) && end_code < k) end_code = k; if (end_data < k) end_data = k; k = elf_ppnt->p_vaddr + elf_ppnt->p_memsz; if (k > elf_brk) elf_brk = k; + if (!elf_interpreter && last_bss > elf_bss) { + padzero(elf_bss, last_bss); + mapped_bss = TARGET_ELF_PAGESTART(elf_bss + qemu_host_page_size - 1); + + /* Map the last of the bss segment */ + target_mmap(load_bias + mapped_bss, last_bss-mapped_bss, + PROT_READ|PROT_WRITE|PROT_EXEC, + MAP_FIXED|MAP_PRIVATE|MAP_ANONYMOUS, -1, 0); + } } elf_entry += load_bias;