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or1k: Fix incorrect value in PLT GOT entries, causing infinite loop 

The PLT GOT entry should point to the first PLT entry which contains the
runtime linker function.  It was pointing back to the symbol PLT entry
causing an infinite loop.

I found this when testing the OpenRISC glibc port which uses the runtime
dynamic linker.  It seems other libc's we use so far have not been
making use of the initial PLT GOT entries.

bfd/ChangeLog:

	* elf32-or1k.c (or1k_elf_finish_dynamic_symbol): Use correct value for
	PLT GOT entries.
This commit is contained in:
Stafford Horne 2019-08-23 22:25:55 +09:00
parent a7ba389645
commit 09f7b0de53
2 changed files with 10 additions and 2 deletions
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5
bfd/ChangeLog
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@ -1,3 +1,8 @@
2019-08-23 Stafford Horne <shorne@gmail.com>
* elf32-or1k.c (or1k_elf_finish_dynamic_symbol): Use correct value for
PLT GOT entries.
2019-08-23 Nick Clifton <nickc@redhat.com>
PR 24456

7
bfd/elf32-or1k.c
View File

@ -2377,8 +2377,11 @@ or1k_elf_finish_dynamic_symbol (bfd *output_bfd,
or1k_write_plt_entry (output_bfd, splt->contents + h->plt.offset,
plt0, plt1, plt2, OR1K_JR(12));
/* Fill in the entry in the global offset table. */
bfd_put_32 (output_bfd, plt_addr, sgot->contents + got_offset);
/* Fill in the entry in the global offset table. We initialize it to
point to the top of the plt. This is done to lazy lookup the actual
symbol as the first plt entry will be setup by libc to call the
runtime dynamic linker. */
bfd_put_32 (output_bfd, plt_base_addr, sgot->contents + got_offset);
/* Fill in the entry in the .rela.plt section. */
rela.r_offset = got_addr;