From d5cff5df74b18e1e5ed94de8f4c9adee3ffd95c6 Mon Sep 17 00:00:00 2001 From: Joseph Myers Date: Thu, 23 Jul 2015 21:52:04 +0000 Subject: [PATCH] Fix DT_MIPS_RLD_MAP_REL tag for n64 target and 32-bit host. For the case of MIPS n64 target and 32-bit host, the computation of the DT_MIPS_RLD_MAP_REL tag involves sdyn->output_section->vma + sdyn->output_offset (64-bit) being added to b (32-bit host pointer), so losing the high part and resulting in an incorrect DT_MIPS_RLD_MAP_REL tag, and all dynamically linked glibc tests failing for n64. This patch fixes this (spot-tested with glibc tests; however, I don't have a self-contained testcase for this bug). * elfxx-mips.c (_bfd_mips_elf_finish_dynamic_sections) : Add target address to host address difference, not to host pointer. --- bfd/ChangeLog | 6 ++++++ bfd/elfxx-mips.c | 2 +- 2 files changed, 7 insertions(+), 1 deletion(-) diff --git a/bfd/ChangeLog b/bfd/ChangeLog index c7915b5..9db32ed 100644 --- a/bfd/ChangeLog +++ b/bfd/ChangeLog @@ -1,3 +1,9 @@ +2015-07-23 Joseph Myers + + * elfxx-mips.c (_bfd_mips_elf_finish_dynamic_sections) + : Add target address to host address + difference, not to host pointer. + 2015-07-22 Alan Modra * elf64-ppc.c (opd_entry_value): Remove assertion. Instead, diff --git a/bfd/elfxx-mips.c b/bfd/elfxx-mips.c index 9932453..06e8158 100644 --- a/bfd/elfxx-mips.c +++ b/bfd/elfxx-mips.c @@ -11515,7 +11515,7 @@ _bfd_mips_elf_finish_dynamic_sections (bfd *output_bfd, /* The MIPS_RLD_MAP_REL tag stores the offset to the debug pointer, relative to the address of the tag. */ dt_addr = (sdyn->output_section->vma + sdyn->output_offset - + b - sdyn->contents); + + (b - sdyn->contents)); rld_addr = (s->output_section->vma + s->output_offset + h->root.u.def.value); dyn.d_un.d_ptr = rld_addr - dt_addr; -- 2.7.4