From 2abf9ff11384a47dc456c138a8faf6b1469aac2b Mon Sep 17 00:00:00 2001 From: Roland McGrath Date: Tue, 23 Sep 2003 12:07:26 +0000 Subject: * sysdeps/i386/dl-machine.h (RTLD_START): Set __libc_stack_end before calling _dl_start, using GOTOFF access. * configure.in (libc_cv_z_execstack): New check. * configure: Regenerated. * config.make.in (have-z-execstack): New variable set by it. * elf/tst-execstack.c: New file. * elf/tst-execstack-mod.c: New file. * elf/tst-execstack-needed.c: New file. * elf/Makefile (tests-execstack-yes, modules-execstack-yes): New variables. (tests, modules-names): Conditionally include them. (distribute): Add tst-execstack-mod.c here. ($(objpfx)tst-execstack, $(objpfx)tst-execstack.out): New targets. (LDFLAGS-tst-execstack, LDFLAGS-tst-execstack-mod): New variables. ($(objpfx)tst-execstack-needed): New target. (LDFLAGS-tst-execstack-needed): New variable. * sysdeps/generic/ldsodefs.h (struct rtld_global): Add _dl_stack_flags and _dl_make_stack_executable_hook. Declare _dl_make_stack_executable. * elf/rtld.c (_rtld_global): Add initializer for _dl_stack_flags. (dl_main): Reset _dl_stack_flags according to PT_GNU_STACK phdr. Initialize _dl_make_stack_executable_hook. * elf/dl-support.c: Define those new variables. (_dl_non_dynamic_init): Scan phdrs for PT_GNU_STACK. (_dl_phdr): Fix type. * elf/dl-load.c (_dl_map_object_from_fd): Grok PT_GNU_STACK phdr and enable execute permission for the stack if necessary. * sysdeps/generic/dl-execstack.c: New file. * elf/Makefile (dl-routines): Add it. * elf/Versions (ld: GLIBC_PRIVATE): Add _dl_make_stack_executable. * sysdeps/unix/sysv/linux/dl-execstack.c: New file. --- config.make.in | 1 + 1 file changed, 1 insertion(+) (limited to 'config.make.in') diff --git a/config.make.in b/config.make.in index 71ccf7131a..21d01f9bc6 100644 --- a/config.make.in +++ b/config.make.in @@ -42,6 +42,7 @@ have-z-nodelete = @libc_cv_z_nodelete@ have-z-nodlopen = @libc_cv_z_nodlopen@ have-z-initfirst = @libc_cv_z_initfirst@ have-z-combreloc = @libc_cv_z_combreloc@ +have-z-execstack = @libc_cv_z_execstack@ have-initfini = @libc_cv_have_initfini@ have-Bgroup = @libc_cv_Bgroup@ need-nopic-initfini = @nopic_initfini@ -- cgit v1.2.3