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File: [cvs.NetBSD.org] / src / lib / libc / arch / powerpc64 / sys / __syscall.S (download)

Revision 1.2, Sat Aug 23 02:24:22 2014 UTC (9 years, 7 months ago) by matt
Branch: MAIN
CVS Tags: prg-localcount2-base3, prg-localcount2-base2, prg-localcount2-base1, prg-localcount2-base, prg-localcount2, phil-wifi-base, phil-wifi-20200411, phil-wifi-20200406, phil-wifi-20191119, phil-wifi-20190609, pgoyette-localcount-base, pgoyette-localcount-20170426, pgoyette-localcount-20170320, pgoyette-localcount-20170107, pgoyette-localcount-20161104, pgoyette-localcount-20160806, pgoyette-localcount-20160726, pgoyette-localcount, pgoyette-compat-merge-20190127, pgoyette-compat-base, pgoyette-compat-20190127, pgoyette-compat-20190118, pgoyette-compat-1226, pgoyette-compat-1126, pgoyette-compat-1020, pgoyette-compat-0930, pgoyette-compat-0906, pgoyette-compat-0728, pgoyette-compat-0625, pgoyette-compat-0521, pgoyette-compat-0502, pgoyette-compat-0422, pgoyette-compat-0415, pgoyette-compat-0407, pgoyette-compat-0330, pgoyette-compat-0322, pgoyette-compat-0315, pgoyette-compat, perseant-stdc-iso10646-base, perseant-stdc-iso10646, netbsd-9-base, netbsd-9-3-RELEASE, netbsd-9-2-RELEASE, netbsd-9-1-RELEASE, netbsd-9-0-RELEASE, netbsd-9-0-RC2, netbsd-9-0-RC1, netbsd-9, netbsd-8-base, netbsd-8-2-RELEASE, netbsd-8-1-RELEASE, netbsd-8-1-RC1, netbsd-8-0-RELEASE, netbsd-8-0-RC2, netbsd-8-0-RC1, netbsd-8, matt-nb8-mediatek-base, matt-nb8-mediatek, localcount-20160914, is-mlppp-base, is-mlppp, bouyer-socketcan-base1, bouyer-socketcan-base, bouyer-socketcan
Branch point for: phil-wifi
Changes since 1.1: +19 -2 lines 

Minimize differences between powerpc and powerpc64
Fix powerpc64 assembly to use right instructions for 64bit CPUs.
Use hidden for __curbrk and __minbrk to avoid GOT/TOC relocations.

/*	$NetBSD: __syscall.S,v 1.2 2014/08/23 02:24:22 matt Exp $	*/

#include "SYS.h"

	.text
	.p2align 2
ENTRY(__syscall)
	mr	%r0,%r3		/* syscall number */
	mr	%r3,%r4
	mr	%r4,%r5
	mr	%r5,%r6
	mr	%r6,%r7
	mr	%r7,%r8
	mr	%r8,%r9
	mr	%r9,%r10
	ldreg	%r10,(2*__SIZEOF_POINTER__)(%r1) /* final argument is on the stack */
	sc
	bnslr
	BRANCH_TO_CERROR()
END(__syscall)

STRONG_ALIAS(syscall, __syscall)