Commit14cd0ca

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modified i386_solaris port

submitted by: dr. george

1 parent31cae34 commit14cd0caCopy full SHA for 14cd0ca

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+37

-2

lines changed

+37

-2

lines changed

Lines changed: 2 additions & 2 deletions

Original file line number	Diff line number	Diff line change
`@@ -7,14 +7,14 @@`
`7`	`7`	`#`
`8`	`8`	`#`
`9`	`9`	`# IDENTIFICATION`
`10`		`-# $Header: /cvsroot/pgsql/src/backend/port/i386_solaris/Attic/Makefile.inc,v 1.3 1996/07/2507:27:08 scrappy Exp $`
	`10`	`+# $Header: /cvsroot/pgsql/src/backend/port/i386_solaris/Attic/Makefile.inc,v 1.4 1996/07/2519:48:24 scrappy Exp $`
`11`	`11`	`#`
`12`	`12`	`#-------------------------------------------------------------------------`
`13`	`13`
`14`	`14`	`CFLAGS+= -DUSE_POSIX_TIME -DNEED_ISINF -DNEED_RUSAGE -DNO_EMPTY_STMTS`
`15`	`15`
`16`	`16`	`LDADD+= -ll -ldl`
`17`	`17`
`18`		`-SUBSRCS+= port.c`
	`18`	`+SUBSRCS+= port.ctas.s`
`19`	`19`
`20`	`20`	`HEADERS+= machine.h port-protos.h rusagestub.h`

Lines changed: 35 additions & 0 deletions

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,35 @@`
	`1`	`+/=============================================================================`
	`2`	`+/ tas.s -- test and set lock for i386_solaris`
	`3`	`+/=============================================================================`
	`4`	`+`
	`5`	`+.file"tas.s"`
	`6`	`+.text`
	`7`	`+.align16`
	`8`	`+.L1.text:`
	`9`	`+`
	`10`	`+.globl tas`
	`11`	`+tas:`
	`12`	`+pushl%ebp /save prev base pointer`
	`13`	`+movl%esp,%ebp /new base pointer`
	`14`	`+pushl%ebx /save prev bx`
	`15`	`+movl8(%ebp),%ebx /load bx with address oflock`
	`16`	`+pushl%ebx /save prev bx`
	`17`	`+movl8(%ebp),%ebx /load bx with address oflock`
	`18`	`+movl$255,%eax /put somethingin ax`
	`19`	`+xchgb%al,(%ebx) /swaplock value with"0"`
	`20`	`+cmpb$0,%al /did we get thelock?`
	`21`	`+jne .Locked`
	`22`	`+subl%eax,%eax /yes, we got it -- return0`
	`23`	`+jmp .Finish`
	`24`	`+.align4`
	`25`	`+.Locked:`
	`26`	`+movl$1,%eax /no, we didn't get it - return1`
	`27`	`+.Finish:`
	`28`	`+popl%ebx /restore prev bx`
	`29`	`+movl%ebp,%esp /restore stack state`
	`30`	`+popl%ebp`
	`31`	`+ret /return`
	`32`	`+.align4`
	`33`	`+.type tas,@function`
	`34`	`+.size tas,.-tas`
	`35`	`+`

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