On Fri, Sep 14, 2012 at 2:41 AM, Jakub Jelinek <ja...@redhat.com> wrote: > On Thu, Sep 13, 2012 at 07:46:52PM -0700, H.J. Lu wrote: >> There is no reason why --eh-frame-hdr can't be used with static >> executable on Linux. This patch enables --eh-frame-hdr for static > > Well, there is. For more than 2 years after the addition of --eh-frame-hdr > support dl_iterate_phdr in libc.a would simply always fail, you aren't > adding any kind of check that old glibc (2001-2003ish) isn't used. > Even in newer glibcs, it relies on AT_* aux vector values provided by the > kernel, if they are not provided for whatever reason, it would fail. > > Jakub
It was implemented in http://sourceware.org/ml/libc-alpha/2003-10/msg00098.html for glibc 2.3.0 and we can check AT_PHDR: 0x400040 AT_PHNUM: 10 with LD_SHOW_AUXV. -- H.J.
