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Re: [GLIBC][AARCH64]Rewrite elf_machine_load_address using _DYNAMIC symbol

From: "Maciej W. Rozycki" <macro at imgtec dot com>
To: Szabolcs Nagy <szabolcs dot nagy at arm dot com>
Cc: Roland McGrath <roland at hack dot frob dot com>, Renlin Li <renlin dot li at foss dot arm dot com>, <nd at arm dot com>, <libc-alpha at sourceware dot org>, Marcus Shawcroft <Marcus dot Shawcroft at arm dot com>, Richard Earnshaw <Richard dot Earnshaw at arm dot com>
Date: Wed, 9 Nov 2016 19:06:35 +0000
Subject: Re: [GLIBC][AARCH64]Rewrite elf_machine_load_address using _DYNAMIC symbol
Authentication-results: sourceware.org; auth=none
References: <581C57FF.2090901@foss.arm.com> <20161104212440.A23F42C3AD8@topped-with-meat.com> <58209A8B.5030702@arm.com> <58209C78.2010906@arm.com> <5820A31E.6030207@arm.com>

On Mon, 7 Nov 2016, Szabolcs Nagy wrote:

> hidden symbol is not accessed with direct pc relative addressing on mips

 Well, the regular MIPS ISA has no PC-relative addressing mode (except 
from branch instructions), so this can't be done with that instruction set 
(the MIPS16 and microMIPS ISAs do have some forms of PC-relative 
addressing, which can be used to access hidden and internal symbols 
bypassing GOT in PIC code if the compiler is smart enough).

  Maciej

References:
- [GLIBC][AARCH64]Rewrite elf_machine_load_address using _DYNAMIC symbol
  - From: Renlin Li
- Re: [GLIBC][AARCH64]Rewrite elf_machine_load_address using _DYNAMIC symbol
  - From: Roland McGrath
- Re: [GLIBC][AARCH64]Rewrite elf_machine_load_address using _DYNAMIC symbol
  - From: Szabolcs Nagy
- Re: [GLIBC][AARCH64]Rewrite elf_machine_load_address using _DYNAMIC symbol
  - From: Szabolcs Nagy
- Re: [GLIBC][AARCH64]Rewrite elf_machine_load_address using _DYNAMIC symbol
  - From: Szabolcs Nagy

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