60 lines
2.4 KiB
Diff
60 lines
2.4 KiB
Diff
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From 651c3617a04a1d1f78e89623b81be7ba32ff59a5 Mon Sep 17 00:00:00 2001
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From: Stafford Horne <shorne@gmail.com>
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Date: Sun, 2 May 2021 06:02:14 +0900
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Subject: [PATCH] or1k: Fix issue with plt link failure for local calls
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When building protobuf we were seeing the assert failure:
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/home/giuliobenetti/git/upstream/or1k-binutils-2.36.1/host/lib/gcc/or1k-buildroot-linux-uclibc/9.3.0/../../../../or1k-buildroot-linux-uclibc/bin/ld:
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BFD (GNU Binutils) 2.36.1 assertion fail elf32-or1k.c:2377
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/home/giuliobenetti/git/upstream/or1k-binutils-2.36.1/host/lib/gcc/or1k-buildroot-linux-uclibc/9.3.0/../../../../or1k-buildroot-linux-uclibc/bin/ld:
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BFD (GNU Binutils) 2.36.1 assertion fail elf32-or1k.c:2377
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/home/giuliobenetti/git/upstream/or1k-binutils-2.36.1/host/lib/gcc/or1k-buildroot-linux-uclibc/9.3.0/../../../../or1k-buildroot-linux-uclibc/bin/ld:
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BFD (GNU Binutils) 2.36.1 assertion fail elf32-or1k.c:2377
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collect2: error: ld returned 1 exit status
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This failure happens while writing out PLT entries, there is a check
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"BFD_ASSERT (h->dynindx != -1)" to confirm all plt entries have dynamic
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symbol attributes. This was failing for symbols that were
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"forced_local" in previous linking code.
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The fix adds logic to or1k_elf_adjust_dynamic_symbol to identify
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"forced_local" symbols and exclude them from the the PLT.
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bfd/ChangeLog:
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PR 27624
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* elf32-or1k.c (or1k_elf_adjust_dynamic_symbol): Change
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condition used to cleanup plt entries to cleanup forced local
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entries.
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Cc: Giulio Benetti <giulio.benetti@benettiengineering.com>
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Signed-off-by: Giulio Benetti <giulio.benetti@benettiengineering.com>
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---
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bfd/elf32-or1k.c | 9 ++++-----
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1 file changed, 4 insertions(+), 5 deletions(-)
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diff --git a/bfd/elf32-or1k.c b/bfd/elf32-or1k.c
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index 31ef758a926..58246875546 100644
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--- a/bfd/elf32-or1k.c
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+++ b/bfd/elf32-or1k.c
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@@ -2535,11 +2535,10 @@ or1k_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
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if (h->type == STT_FUNC
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|| h->needs_plt)
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{
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- if (! bfd_link_pic (info)
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- && !h->def_dynamic
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- && !h->ref_dynamic
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- && h->root.type != bfd_link_hash_undefweak
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- && h->root.type != bfd_link_hash_undefined)
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+ if (h->plt.refcount <= 0
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+ || (SYMBOL_CALLS_LOCAL (info, h)
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+ || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
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+ && h->root.type == bfd_link_hash_undefweak)))
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{
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/* This case can occur if we saw a PLT reloc in an input
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file, but the symbol was never referred to by a dynamic
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--
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2.25.1
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