[PATCH] libgloss: rename non-standard nosys to cio in msp430
Peter A. Bigot
pab@pabigot.com
Mon Sep 22 12:16:00 GMT 2014
The msp430 port of newlib is nearly unique in discarding the libnosys
implementation provided by newlib in favor of its own implementation.
(Of the dozen+ supported newlib targets spu-* is the only other one that
does this).
Based on discussion on the mspgcc-users mailing list[1], this patch
changes msp430 to use the standard newlib libnosys, while preserving the
existing cio alternative as a distinctly named library.
libgloss/ChangeLog:
2014-09-22 Peter A. Bigot <pab@pabigot.com>
* configure.in: Remove config_libnosys=false
* configure: Regenerated.
* msp430/nosyscalls.S: Rename to ciosyscalls.S
* msp430/Makefile.in: Change LIBNOSYS to LIB_CIO.
[1] http://www.mail-archive.com/mspgcc-users@lists.sourceforge.net/msg12104.html
Cc: dj@redhat.com
Cc: nickc@redhat.com
Signed-off-by: Peter A. Bigot <pab@pabigot.com>
---
libgloss/configure | 1 -
libgloss/configure.in | 1 -
libgloss/msp430/Makefile.in | 12 ++++----
libgloss/msp430/ciosyscalls.S | 69 +++++++++++++++++++++++++++++++++++++++++++
libgloss/msp430/nosyscalls.S | 69 -------------------------------------------
5 files changed, 75 insertions(+), 77 deletions(-)
create mode 100644 libgloss/msp430/ciosyscalls.S
delete mode 100644 libgloss/msp430/nosyscalls.S
diff --git a/libgloss/configure b/libgloss/configure
index 41d91d6..aaef579 100755
--- a/libgloss/configure
+++ b/libgloss/configure
@@ -2531,7 +2531,6 @@ case "${target}" in
msp430*-*-elf)
subdirs="$subdirs msp430"
- config_libnosys=false
;;
rl78*-*-elf)
subdirs="$subdirs rl78"
diff --git a/libgloss/configure.in b/libgloss/configure.in
index 14287e7..93cc369 100644
--- a/libgloss/configure.in
+++ b/libgloss/configure.in
@@ -137,7 +137,6 @@ case "${target}" in
;;
msp430*-*-elf)
AC_CONFIG_SUBDIRS([msp430])
- config_libnosys=false
;;
rl78*-*-elf)
AC_CONFIG_SUBDIRS([rl78])
diff --git a/libgloss/msp430/Makefile.in b/libgloss/msp430/Makefile.in
index 57c7f10..d72051d 100644
--- a/libgloss/msp430/Makefile.in
+++ b/libgloss/msp430/Makefile.in
@@ -63,7 +63,7 @@ SCRIPTS += $(srcdir)/intr_vectors.ld
CRT = gcrt0.o crt0.o crt0-minrt.o crtn.o crtn-minrt.o
SIM_BSP = libsim.a
-LIBNOSYS = libnosys.a
+LIB_CIO = libcio.a
LIB_CRT = libcrt.a
SIM_OBJS = syscalls.o \
@@ -71,7 +71,7 @@ SIM_OBJS = syscalls.o \
write.o \
sbrk.o
-NOSYS_OBJS = nosyscalls.o \
+CIO_OBJS = ciosyscalls.o \
cio.o \
write.o \
unlink.o \
@@ -91,7 +91,7 @@ CRT_OBJS = \
@host_makefile_frag@
-all: $(CRT) $(SIM_BSP) $(LIBNOSYS) $(LIB_CRT) copy_scripts_to_objdir
+all: $(CRT) $(SIM_BSP) $(LIB_CIO) $(LIB_CRT) copy_scripts_to_objdir
crt_%.o : crt0.S
$(CC) -DL$* -Wa,-gdwarf2 -Wa,-I$(srcdir) $(CFLAGS_FOR_TARGET) $(INCLUDES) $(CFLAGS) -c $< -o $@
@@ -110,7 +110,7 @@ $(SIM_BSP): $(SIM_OBJS)
$(AR) $(ARFLAGS) $@ $?
$(RANLIB) $@
-$(LIBNOSYS): $(NOSYS_OBJS)
+$(LIB_CIO): $(CIO_OBJS)
$(AR) $(ARFLAGS) $@ $?
$(RANLIB) $@
@@ -151,8 +151,8 @@ unlink.o : $(SDEPS)
utime.o : $(SDEPS)
write.o : $(SDEPS)
-install: $(CRT) $(SIM_BSP) $(LIBNOSYS) $(LIB_CRT) $(SCRIPTS)
- for c in $(CRT) $(SIM_BSP) $(LIBNOSYS) $(LIB_CRT); do \
+install: $(CRT) $(SIM_BSP) $(LIB_CIO) $(LIB_CRT) $(SCRIPTS)
+ for c in $(CRT) $(SIM_BSP) $(LIB_CIO) $(LIB_CRT); do \
$(INSTALL_DATA) $$c $(tooldir)/lib${MULTISUBDIR}/$$c ;\
done
for c in $(SCRIPTS); do \
diff --git a/libgloss/msp430/ciosyscalls.S b/libgloss/msp430/ciosyscalls.S
new file mode 100644
index 0000000..abb01b0
--- /dev/null
+++ b/libgloss/msp430/ciosyscalls.S
@@ -0,0 +1,69 @@
+/* Copyright (c) 2012, 2013 Red Hat, Inc. All rights reserved.
+
+ This copyrighted material is made available to anyone wishing to use, modify,
+ copy, or redistribute it subject to the terms and conditions of the BSD
+ License. This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY expressed or implied, including the implied warranties
+ of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. A copy of this license
+ is available at http://www.opensource.org/licenses. Any Red Hat trademarks that
+ are incorporated in the source code or documentation are not subject to the BSD
+ License and may only be used or replicated with the express permission of
+ Red Hat, Inc.
+*/
+
+/* Empty syscall definitions for when we run on real hardware. */
+
+#include "../syscall.h"
+#include "memmodel.h"
+
+#define ENOSYS 88
+
+.macro sc,a
+ sc2 \a,\a
+.endm
+
+.macro sc2,name,num
+ .weak \name
+ .global \name
+\name:
+ call_ #__errno
+ movx_ #ENOSYS, @R12
+ MOV.W #-1,R12
+ ret_
+.endm
+
+ .weak exit
+ .weak _exit
+ .global exit
+ .global _exit
+exit:
+_exit:
+ /* For some reason, the board fails to stop at a breakpoint
+ placed on top of a software breakpoint instruction. */
+/* MOV.B #0,R3 ; this is a software breakpoint instruction */
+1: br_ #1b
+
+#define SC(n) sc2 n,SYS_##n
+
+ SC (open)
+ SC (close)
+ SC (read)
+/* SC (write)*/
+ SC (fstat)
+ SC (lseek)
+ SC (kill)
+
+ .weak isatty
+ .global isatty
+isatty:
+ .weak _isatty
+ .global _isatty
+_isatty:
+ MOV #1,R12
+ ret_
+
+ .weak getpid
+ .global getpid
+getpid:
+ MOV #42,R12
+ ret_
diff --git a/libgloss/msp430/nosyscalls.S b/libgloss/msp430/nosyscalls.S
deleted file mode 100644
index abb01b0..0000000
--- a/libgloss/msp430/nosyscalls.S
+++ /dev/null
@@ -1,69 +0,0 @@
-/* Copyright (c) 2012, 2013 Red Hat, Inc. All rights reserved.
-
- This copyrighted material is made available to anyone wishing to use, modify,
- copy, or redistribute it subject to the terms and conditions of the BSD
- License. This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY expressed or implied, including the implied warranties
- of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. A copy of this license
- is available at http://www.opensource.org/licenses. Any Red Hat trademarks that
- are incorporated in the source code or documentation are not subject to the BSD
- License and may only be used or replicated with the express permission of
- Red Hat, Inc.
-*/
-
-/* Empty syscall definitions for when we run on real hardware. */
-
-#include "../syscall.h"
-#include "memmodel.h"
-
-#define ENOSYS 88
-
-.macro sc,a
- sc2 \a,\a
-.endm
-
-.macro sc2,name,num
- .weak \name
- .global \name
-\name:
- call_ #__errno
- movx_ #ENOSYS, @R12
- MOV.W #-1,R12
- ret_
-.endm
-
- .weak exit
- .weak _exit
- .global exit
- .global _exit
-exit:
-_exit:
- /* For some reason, the board fails to stop at a breakpoint
- placed on top of a software breakpoint instruction. */
-/* MOV.B #0,R3 ; this is a software breakpoint instruction */
-1: br_ #1b
-
-#define SC(n) sc2 n,SYS_##n
-
- SC (open)
- SC (close)
- SC (read)
-/* SC (write)*/
- SC (fstat)
- SC (lseek)
- SC (kill)
-
- .weak isatty
- .global isatty
-isatty:
- .weak _isatty
- .global _isatty
-_isatty:
- MOV #1,R12
- ret_
-
- .weak getpid
- .global getpid
-getpid:
- MOV #42,R12
- ret_
--
1.8.5.5
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