Module Name: src
Committed By: mrg
Date: Sat Jan 23 23:39:27 UTC 2010
Modified Files:
src/sys/arch/sparc64/sparc64: locore.s
Log Message:
remove the final uses of DATA_START.
now we can remove the 16KB space reserved at the start of the data segment,
and i now understand why i wrote this now removed comment 3.5 years ago:
"this shouldn't be needed... but kernel usually hangs without it"
To generate a diff of this commit:
cvs rdiff -u -r1.304 -r1.305 src/sys/arch/sparc64/sparc64/locore.s
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/arch/sparc64/sparc64/locore.s
diff -u src/sys/arch/sparc64/sparc64/locore.s:1.304 src/sys/arch/sparc64/sparc64/locore.s:1.305
--- src/sys/arch/sparc64/sparc64/locore.s:1.304 Sat Jan 23 23:06:27 2010
+++ src/sys/arch/sparc64/sparc64/locore.s Sat Jan 23 23:39:27 2010
@@ -1,4 +1,4 @@
-/* $NetBSD: locore.s,v 1.304 2010/01/23 23:06:27 mrg Exp $ */
+/* $NetBSD: locore.s,v 1.305 2010/01/23 23:39:27 mrg Exp $ */
/*
* Copyright (c) 1996-2002 Eduardo Horvath
@@ -383,12 +383,6 @@
.data
.globl _C_LABEL(data_start)
_C_LABEL(data_start): ! Start of data segment
-#define DATA_START _C_LABEL(data_start)
-
-#if 1
-/* XXX this shouldn't be needed... but kernel usually hangs without it */
- .space USPACE
-#endif
#ifdef KGDB
/*
@@ -1848,13 +1842,7 @@
set 0x0800000, %g6 ! 8MB
sub %g3, %g7, %g7
cmp %g7, %g6
- sethi %hi(DATA_START), %g7
- mov 6, %g6 ! debug
- stb %g6, [%g7+0x20] ! debug
tlu %xcc, 1; nop
- blu,pn %xcc, winfix ! Next insn in delay slot is unimportant
- mov 7, %g6 ! debug
- stb %g6, [%g7+0x20] ! debug
1:
#endif
srlx %g3, STSHIFT, %g6
@@ -2626,13 +2614,7 @@
set 0x0800000, %g6 ! 8MB
sub %g3, %g7, %g7
cmp %g7, %g6
- mov 6, %g6 ! debug
- sethi %hi(DATA_START), %g7
- stb %g6, [%g7+0x30] ! debug
tlu %xcc, 1; nop
- blu,pn %xcc, textfault ! Next insn in delay slot is unimportant
- mov 7, %g6 ! debug
- stb %g6, [%g7+0x30] ! debug
1:
#endif
srlx %g3, STSHIFT, %g6
