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Change the munmap() of the text-data gap to mprotect(PROT_NONE). This avoids 

having scattered little mappings, although it's probably not the best way...
This commit is contained in:
mycroft 2002-09-27 19:48:24 +00:00
parent c7b51b5566
commit c5739d43db
1 changed files with 3 additions and 3 deletions
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6
libexec/ld.elf_so/map_object.c
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@ -1,4 +1,4 @@
/* $NetBSD: map_object.c,v 1.20 2002/09/24 12:44:58 mycroft Exp $ */
/* $NetBSD: map_object.c,v 1.21 2002/09/27 19:48:24 mycroft Exp $ */
/*
* Copyright 1996 John D. Polstra.
@ -226,8 +226,8 @@ _rtld_map_object(path, fd, sb)
/* Unmap the gap between the text and data. */
gap_addr = base_addr + round_up(text_vlimit - base_vaddr);
gap_size = data_addr - gap_addr;
if (gap_size != 0 && munmap(gap_addr, gap_size) == -1) {
_rtld_error("munmap of text -> data gap failed: %s",
if (gap_size != 0 && mprotect(gap_addr, gap_size, PROT_NONE) == -1) {
_rtld_error("mprotect of text -> data gap failed: %s",
xstrerror(errno));
goto bad2;
}