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PR 63589 Fix splitting of PATH in find_addr2line.

2014-10-20  Janne Blomqvist  <jb@gcc.gnu.org>

	PR libfortran/63589
	* configure.ac: Check for strtok_r.
	* runtime/main.c (gfstrtok_r): Fallback implementation of
	strtok_r.
	(find_addr2line): Use strtok_r to split PATH.
	* config.h.in: Regenerated.
	* configure: Regenerated.


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[AArch64][4.8] Backport Cortex-A53 erratum 835769 workaround

	* config/aarch64/aarch64.opt (mfix-cortex-a53-835769): New option.
	* config/aarch64/aarch64.h (ADJUST_INSN_LENGTH): Define.
	(FINAL_PRESCAN_INSN): Likewise.
	* config/aarch64/aarch64.h (is_mem_p): New function.
	(has_memory_op): Likewise.
	(aarch64_prev_real_insn): Likewise.
	(is_madd_op): Likewise.
	(dep_between_memop_and_curr): Likewise.
	(aarch64_madd_needs_nop): Likewise.
	(aarch64_final_prescan_insn): Likewise.
	* doc/invoke.texi (Document new option).



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-4_8-branch@216664 138bc75d-0d04-0410-961f-82ee72b054a4
[AArch64] Backport --enable-fix-cortex-a53-835769 configure option

	* config.gcc (aarch64*-*-*): Define TARGET_FIX_ERR_A53_835769_DEFAULT
	if asked.
	* configure.ac: Add --enable-fix-cortex-a53-835769 option.
	* configure: Regenerate.
	* config/aarch64/aarch64.c (aarch64_override_options): Handle
	TARGET_FIX_ERR_A53_835769_DEFAULT.
	* config/aarch64/aarch64.opt (mfix-cortex-a53-835769): Set Init value
	to 2.
	* doc/install.texi: Document --enable-fix-cortex-a53-835769 option.



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	* config/pa/linux-unwind.h (pa32_read_access_ok): New function.
	(pa32_fallback_frame_state): Use pa32_read_access_ok to check if
	memory read accesses are ok.



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[AArch64] Restore recog state after finding pre-madd instruction

    * config/aarch64/aarch64.c (aarch64_madd_needs_nop): Restore
    recog state after aarch64_prev_real_insn call.

    * gcc.target/aarch64/madd_after_asm_1.c: New test.


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