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Re: Is init_priority file scope or global scope?

From: Ian Lance Taylor <iant at google dot com>
To: Dave Korn <dave dot korn dot cygwin at gmail dot com>
Cc: "H.J. Lu" <hjl dot tools at gmail dot com>, "gcc\ at gcc dot gnu dot org" <gcc at gcc dot gnu dot org>
Date: Mon, 13 Dec 2010 11:41:00 -0800
Subject: Re: Is init_priority file scope or global scope?
References: <AANLkTimB0GKS9XC4Nh9DmVjhwrfewxPoXQQBv60B31m3@mail.gmail.com> <4D0461A6.6070405@gmail.com> <AANLkTikKgt8Jm36L4g96v=cNDRwoqkGun_xoyDWorX-W@mail.gmail.com> <4D047CAF.5040208@gmail.com>

Dave Korn <dave.korn.cygwin@gmail.com> writes:

>   Well, at least on PE-COFF, the numeric string is (65536-priority).  It is
> zero padded to five digits, so that the linker's alphabetical sort effectively
> becomes a numeric sort, and the reason for the inverting the numeric order of
> priorities is because .ctors gets read backwards at startup.

Same on ELF (except that on ARM EABI it uses .init_array and does not
subtract from 65535; see arm_elf_asm_cdtor).

Ian

References:
- Is init_priority file scope or global scope?
  - From: H.J. Lu
- Re: Is init_priority file scope or global scope?
  - From: Dave Korn
- Re: Is init_priority file scope or global scope?
  - From: Dave Korn

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