From 7dbf3b76a24009dfe759b42e5b8544f20c6d9529 Mon Sep 17 00:00:00 2001 From: Richard Henderson Date: Fri, 24 Jun 2011 17:38:17 +0000 Subject: [PATCH] PR ld/12928 * elf64-alpha.c (elf64_alpha_relax_tls_get_addr): Recover the tlsgd insn before swapping adjacent insns. --- bfd/ChangeLog | 6 ++++++ bfd/elf64-alpha.c | 14 +++++++------- 2 files changed, 13 insertions(+), 7 deletions(-) diff --git a/bfd/ChangeLog b/bfd/ChangeLog index 96297a3dda6..c7a634f77b0 100644 --- a/bfd/ChangeLog +++ b/bfd/ChangeLog @@ -1,3 +1,9 @@ +2011-06-24 Richard Henderson + + PR ld/12928 + * elf64-alpha.c (elf64_alpha_relax_tls_get_addr): Recover the + tlsgd insn before swapping adjacent insns. + 2011-06-24 Tristan Gingold * vms-alpha.c (alpha_vms_slurp_relocs): Add a guard for relocs in the diff --git a/bfd/elf64-alpha.c b/bfd/elf64-alpha.c index 46078ea4a48..60767099c6b 100644 --- a/bfd/elf64-alpha.c +++ b/bfd/elf64-alpha.c @@ -3508,6 +3508,13 @@ elf64_alpha_relax_tls_get_addr (struct alpha_relax_info *info, bfd_vma symval, pos[3] = info->contents + gpdisp->r_offset; pos[4] = pos[3] + gpdisp->r_addend; + /* Beware of the compiler hoisting part of the sequence out a loop + and adjusting the destination register for the TLSGD insn. If this + happens, there will be a move into $16 before the JSR insn, so only + transformations of the first insn pair should use this register. */ + tlsgd_reg = bfd_get_32 (info->abfd, pos[0]); + tlsgd_reg = (tlsgd_reg >> 21) & 31; + /* Generally, the positions are not allowed to be out of order, lest the modified insn sequence have different register lifetimes. We can make an exception when pos 1 is adjacent to pos 0. */ @@ -3575,13 +3582,6 @@ elf64_alpha_relax_tls_get_addr (struct alpha_relax_info *info, bfd_vma symval, use_gottprel = FALSE; new_symndx = is_gd ? ELF64_R_SYM (irel->r_info) : STN_UNDEF; - /* Beware of the compiler hoisting part of the sequence out a loop - and adjusting the destination register for the TLSGD insn. If this - happens, there will be a move into $16 before the JSR insn, so only - transformations of the first insn pair should use this register. */ - tlsgd_reg = bfd_get_32 (info->abfd, pos[0]); - tlsgd_reg = (tlsgd_reg >> 21) & 31; - switch (!dynamic && !info->link_info->shared) { case 1: -- 2.30.2