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authorEric Andersen <andersen@codepoet.org>2002-01-29 09:02:55 +0000
committerEric Andersen <andersen@codepoet.org>2002-01-29 09:02:55 +0000
commit8fda4c4091b05523123b9a59f627a08581e73c65 (patch)
treee3c2db454f9d4221bec5bac5308b8263ecce8d65 /libc/sysdeps/linux
parent75d013b16a0764bf393628d241f05729a81d9b8d (diff)
Updates to the v850 architecture from Miles Bader <miles@gnu.org>
Diffstat (limited to 'libc/sysdeps/linux')
-rw-r--r--libc/sysdeps/linux/v850/crt0.S19
-rw-r--r--libc/sysdeps/linux/v850/setjmp.S17
2 files changed, 23 insertions, 13 deletions
diff --git a/libc/sysdeps/linux/v850/crt0.S b/libc/sysdeps/linux/v850/crt0.S
index 7bfa9e004..2013c3b54 100644
--- a/libc/sysdeps/linux/v850/crt0.S
+++ b/libc/sysdeps/linux/v850/crt0.S
@@ -1,8 +1,8 @@
/*
* libc/sysdeps/linux/v850/crt0.S -- Initial program entry point for linux/v850
*
- * Copyright (C) 2001 NEC Corporation
- * Copyright (C) 2001 Miles Bader <miles@gnu.org>
+ * Copyright (C) 2001,2002 NEC Corporation
+ * Copyright (C) 2001,2002 Miles Bader <miles@gnu.org>
*
* This file is subject to the terms and conditions of the GNU Lesser
* General Public License. See the file COPYING.LIB in the main
@@ -25,20 +25,21 @@ C_ENTRY(start):
mov r7, r8 // Arg 2: envp
mov r6, r10 // skip argc elements to get envp start
-1: add 4, r8
- add -1, r10
- bp 1b
+ add 1, r10 // ...plus the NULL at the end of argv
+ shl 2, r10 // Convert to byte-count to skip
+ add r10, r8
// Zero bss area, since we can't rely upon any loader to do so
mov hilo(C_SYMBOL_NAME(edata)), ep
mov hilo(C_SYMBOL_NAME(end)), r10
-2: sst.w r0, 0[ep]
+2: cmp ep, r10
+ be 3f
+ sst.w r0, 0[ep]
add 4, ep
- cmp ep, r10
- bne 2b
+ br 2b
// Load CTBP register
- mov hilo(C_SYMBOL_NAME(_ctbp)), r19
+3: mov hilo(C_SYMBOL_NAME(_ctbp)), r19
ldsr r19, ctbp
// Load GP
diff --git a/libc/sysdeps/linux/v850/setjmp.S b/libc/sysdeps/linux/v850/setjmp.S
index 460706ec6..87a5e3833 100644
--- a/libc/sysdeps/linux/v850/setjmp.S
+++ b/libc/sysdeps/linux/v850/setjmp.S
@@ -1,8 +1,8 @@
/*
* libc/sysdeps/linux/v850/setjmp.S -- `setjmp' for v850
*
- * Copyright (C) 2001 NEC Corporation
- * Copyright (C) 2001 Miles Bader <miles@gnu.org>
+ * Copyright (C) 2001,2002 NEC Corporation
+ * Copyright (C) 2001,2002 Miles Bader <miles@gnu.org>
*
* This file is subject to the terms and conditions of the GNU Lesser
* General Public License. See the file COPYING.LIB in the main
@@ -18,7 +18,16 @@
#include <clinkage.h>
.text
-C_ENTRY(__sigsetjmp):
+C_ENTRY(setjmp):
+ mov 1, r7 /* Save the signal mask. */
+ br C_SYMBOL_NAME(__sigsetjmp)
+
+ .globl C_SYMBOL_NAME(_setjmp)
+C_SYMBOL_NAME(_setjmp):
+ mov 0, r7 /* Don't save the signal mask. */
+
+ .globl C_SYMBOL_NAME(__sigsetjmp)
+C_SYMBOL_NAME(__sigsetjmp):
/* Save registers */
mov r6, ep
sst.w sp, 0[ep]
@@ -36,4 +45,4 @@ C_ENTRY(__sigsetjmp):
sst.w r29, 48[ep]
/* Make a tail call to __sigjmp_save; it takes the same args. */
jr C_SYMBOL_NAME(__sigjmp_save)
-C_END(__sigsetjmp)
+C_END(setjmp)