source: npl/system/klibc/patches/klibc-mips-setjmp-s-don-t-save-and-restore-floating-point.patch @ 2154c77

Last change on this file since 2154c77 was c5c522c, checked in by Edwin Eefting <edwin@datux.nl>, 8 years ago

initial commit, transferred from cleaned syn3 svn tree
  • Property mode set to 100644
File size: 1.3 KB

  • usr/klibc/arch/mips/setjmp.S 

    From: YunQiang Su <wzssyqa@gmail.com>
Date: Sat Sep  5 06:39:25 PDT 2015
Subject: [klibc] mips/setjmp.S: don't save and restore floating-point registers
Bug-Debian: https://bugs.debian.org/789683
Forwarded: http://www.zytor.com/pipermail/klibc/2015-September/003833.html

Klibc FTBFS with '-mno-odd-spreg' on mips32(el) platforms,
As it try to save/restore odd-number FPR.

Indeed no other architectures save/restore FPR at all.
It shouldn't be needed.
---
 usr/klibc/arch/mips/setjmp.S | 24 ------------------------
 1 file changed, 24 deletions(-)
    a b LEAF(setjmp) 
    2929        sw      s8, 40(a0)
    3030        sw      ra, 44(a0)
    3131        cfc1    t0,$31
    32         swc1    $f20,48(a0)
    33         swc1    $f21,52(a0)
    34         swc1    $f22,56(a0)
    35         swc1    $f23,60(a0)
    36         swc1    $f24,64(a0)
    37         swc1    $f25,68(a0)
    38         swc1    $f26,72(a0)
    39         swc1    $f27,76(a0)
    40         swc1    $f28,80(a0)
    41         swc1    $f29,84(a0)
    42         swc1    $f30,88(a0)
    43         swc1    $f31,92(a0)
    4432        sw      t0,96(a0)
    4533        move    v0,zero
    4634        jr      ra
    … … LEAF(longjmp) 
    6149        lw      s8, 40(a0)
    6250        lw      ra, 44(a0)
    6351        lw      t0, 96(a0)
    64         lwc1    $f20,48(a0)
    65         lwc1    $f21,52(a0)
    66         lwc1    $f22,56(a0)
    67         lwc1    $f23,60(a0)
    68         lwc1    $f24,64(a0)
    69         lwc1    $f25,68(a0)
    70         lwc1    $f26,72(a0)
    71         lwc1    $f27,76(a0)
    72         lwc1    $f28,80(a0)
    73         lwc1    $f29,84(a0)
    74         lwc1    $f30,88(a0)
    75         lwc1    $f31,92(a0)
    7652        ctc1    t0,$31
    7753        move    v0,a1
    7854        jr      ra
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