diff options
Diffstat (limited to 'ldso/dynlink.c')
| -rw-r--r-- | ldso/dynlink.c | 11 |
1 files changed, 5 insertions, 6 deletions
diff --git a/ldso/dynlink.c b/ldso/dynlink.c index c6216b7c..eecbddb5 100644 --- a/ldso/dynlink.c +++ b/ldso/dynlink.c @@ -706,18 +706,17 @@ static void *map_library(int fd, struct dso *dso) dso->phnum = eh->e_phnum; dso->phentsize = eh->e_phentsize; } - /* Reuse the existing mapping for the lowest-address LOAD */ - if ((ph->p_vaddr & -PAGE_SIZE) == addr_min && !DL_NOMMU_SUPPORT) - continue; this_min = ph->p_vaddr & -PAGE_SIZE; this_max = ph->p_vaddr+ph->p_memsz+PAGE_SIZE-1 & -PAGE_SIZE; off_start = ph->p_offset & -PAGE_SIZE; prot = (((ph->p_flags&PF_R) ? PROT_READ : 0) | ((ph->p_flags&PF_W) ? PROT_WRITE: 0) | ((ph->p_flags&PF_X) ? PROT_EXEC : 0)); - if (mmap_fixed(base+this_min, this_max-this_min, prot, MAP_PRIVATE|MAP_FIXED, fd, off_start) == MAP_FAILED) - goto error; - if (ph->p_memsz > ph->p_filesz) { + /* Reuse the existing mapping for the lowest-address LOAD */ + if ((ph->p_vaddr & -PAGE_SIZE) != addr_min || DL_NOMMU_SUPPORT) + if (mmap_fixed(base+this_min, this_max-this_min, prot, MAP_PRIVATE|MAP_FIXED, fd, off_start) == MAP_FAILED) + goto error; + if (ph->p_memsz > ph->p_filesz && (ph->p_flags&PF_W)) { size_t brk = (size_t)base+ph->p_vaddr+ph->p_filesz; size_t pgbrk = brk+PAGE_SIZE-1 & -PAGE_SIZE; memset((void *)brk, 0, pgbrk-brk & PAGE_SIZE-1); |