[PATCH] added klibc version 0.82 (cvs tree) to the udev tree.
Not hooked up to the build yet.
This commit is contained in:
greg@kroah.com
Greg KH
parent
6c0eae77a1
commit
a41a0e28c2
|
|
@ -0,0 +1,41 @@
|
|||
# -*- makefile -*-
|
||||
#
|
||||
# Makefile configuration, without explicit rules
|
||||
#
|
||||
|
||||
ARCH = $(shell uname -m | sed -e s/i.86/i386/ -e s/sun4u/sparc64/ -e s/arm.*/arm/ -e s/sa110/arm/)
|
||||
CROSS =
|
||||
CC = $(CROSS)gcc
|
||||
LD = $(CROSS)ld
|
||||
KLIBSRC = $(SRCROOT)/klibc
|
||||
REQFLAGS = $(ARCHREQFLAGS) -nostdinc -iwithprefix include -I$(KLIBSRC) \
|
||||
-I$(KLIBSRC)/arch/$(ARCH)/include \
|
||||
-I$(KLIBSRC)/include/bits$(BITSIZE) \
|
||||
-D__KLIBC__ -DBITSIZE=$(BITSIZE) -I$(KLIBSRC)/include \
|
||||
-I$(SRCROOT)/linux/include
|
||||
LDFLAGS =
|
||||
AR = $(CROSS)ar
|
||||
RANLIB = $(CROSS)ranlib
|
||||
NM = $(CROSS)nm
|
||||
PERL = perl
|
||||
STRIP = $(CROSS)strip --strip-all -R .comment -R .note
|
||||
|
||||
HOST_CC = gcc
|
||||
HOST_LDFLAGS = -s
|
||||
HOST_LIBS =
|
||||
|
||||
CRT0 = $(KLIBSRC)/crt0.o
|
||||
KLIBC = $(KLIBSRC)/libc.a
|
||||
LIBGCC = $(shell $(CC) --print-libgcc)
|
||||
|
||||
#
|
||||
# This indicates the location of the final version of the shared library.
|
||||
# THIS MUST BE AN ABSOLUTE PATH WITH NO FINAL SLASH.
|
||||
# Leave this empty to make it the root.
|
||||
#
|
||||
SHLIBDIR = /lib
|
||||
|
||||
#
|
||||
# Include arch-specific rule fragments
|
||||
#
|
||||
include $(KLIBSRC)/arch/$(ARCH)/MCONFIG
|
||||
|
|
@ -1,3 +1,6 @@
|
|||
SUBDIRS = klibc
|
||||
|
||||
clean:
|
||||
@echo "all clean"
|
||||
all:
|
||||
|
||||
%:
|
||||
@set -e; for d in $(SUBDIRS); do $(MAKE) -C $$d $@; done
|
||||
|
|
|
|||
|
|
@ -0,0 +1,16 @@
|
|||
Please see klibc/README for how to set up the tree before building.
|
||||
|
||||
klibc is archived at:
|
||||
|
||||
ftp://ftp.zytor.com/pub/linux/libs/klibc/
|
||||
|
||||
There is a mailing list for klibc and early-userspace issues at:
|
||||
|
||||
http://www.zytor.com/mailman/listinfo/klibc/
|
||||
|
||||
There is also a cvsweb repository at:
|
||||
|
||||
http://www.zytor.com/cvsweb.cgi/klibc/
|
||||
|
||||
There is no direct public CVS access yet, however.
|
||||
|
||||
|
|
@ -0,0 +1,51 @@
|
|||
-------------------------------------------------
|
||||
Please note the following caveats to using klibc:
|
||||
-------------------------------------------------
|
||||
|
||||
optimization:
|
||||
-------------
|
||||
|
||||
Compiling with -O0 is not supported. It may or may not work; please
|
||||
use -O1 if you want to do maximize debuggability.
|
||||
|
||||
Compiling with -O0 is more likely to work on gcc 3.
|
||||
|
||||
|
||||
setjmp()/longjmp():
|
||||
-------------------
|
||||
|
||||
setjmp() and longjmp() *do not* save signal state. sigsetjmp() and
|
||||
siglongjmp() *do* save the signal mask -- regardless of the value of
|
||||
the extra argument.
|
||||
|
||||
The standards actually state that if you pass longjmp() a final value
|
||||
of zero the library should change that to a 1! Presumably the reason
|
||||
is so people who write broken code can get away with writing
|
||||
longjmp(buf); or something equally bad. If you pass longjmp() a final
|
||||
value of 0 you get what you deserve -- setjmp() will happily return 0.
|
||||
|
||||
|
||||
stdio:
|
||||
------
|
||||
|
||||
Only a small subset of the stdio functions are implemented. Those
|
||||
that are implemented do not buffer, although they *do* trap EINTR or
|
||||
short read/writes and iterate.
|
||||
|
||||
_fread() and _fwrite(), which take only one size argument (like
|
||||
read/write), but do handle EINTR/short return are also available.
|
||||
|
||||
|
||||
namespaces:
|
||||
-----------
|
||||
|
||||
klibc frequently includes headers in other headers in a way that
|
||||
exposes more symbols than POSIX says they should. "Live with it."
|
||||
|
||||
|
||||
theading:
|
||||
---------
|
||||
|
||||
klibc is not thread-safe. Consequently, clone() or any of the
|
||||
pthreads functions are not included.
|
||||
|
||||
|
|
@ -0,0 +1,73 @@
|
|||
This license applies to all files in directory and its subdirectories,
|
||||
unless otherwise noted in individual files.
|
||||
|
||||
|
||||
Some files are derived from files derived from the include/ directory
|
||||
of the Linux kernel, and are licensed under the terms of the GNU
|
||||
General Public License, version 2, as released by the Free Software
|
||||
Foundation, Inc.; incorporated herein by reference.
|
||||
|
||||
-----
|
||||
|
||||
Some files are derived from files copyrighted by the Regents of The
|
||||
University of California, and are available under the following
|
||||
license:
|
||||
|
||||
Note: The advertising clause in the license appearing on BSD Unix
|
||||
files was officially rescinded by the Director of the Office of
|
||||
Technology Licensing of the University of California on July 22
|
||||
1999. He states that clause 3 is "hereby deleted in its entirety."
|
||||
|
||||
* Copyright (c)
|
||||
* The Regents of the University of California. All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. All advertising materials mentioning features or use of this software
|
||||
* must display the following acknowledgement:
|
||||
* This product includes software developed by the University of
|
||||
* California, Berkeley and its contributors.
|
||||
* 4. Neither the name of the University nor the names of its contributors
|
||||
* may be used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
||||
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
||||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||||
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
|
||||
-----
|
||||
|
||||
For all remaining files, the following license applies:
|
||||
|
||||
* Permission is hereby granted, free of charge, to any person obtaining
|
||||
* a copy of this software and associated documentation files (the
|
||||
* "Software"), to deal in the Software without restriction, including
|
||||
* without limitation the rights to use, copy, modify, merge, publish,
|
||||
* distribute, sublicense, and/or sell copies of the Software, and to
|
||||
* permit persons to whom the Software is furnished to do so, subject to
|
||||
* the following conditions:
|
||||
*
|
||||
* Any copyright notice(s) and this permission notice shall be
|
||||
* included in all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
||||
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
||||
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
||||
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
|
||||
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
|
||||
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
|
||||
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
||||
|
|
@ -0,0 +1,49 @@
|
|||
# -*- makefile -*-
|
||||
#
|
||||
# Makefile configuration, without explicit rules
|
||||
#
|
||||
|
||||
SRCROOT = ..
|
||||
include ../MCONFIG
|
||||
|
||||
WARNFLAGS = -W -Wall -Wpointer-arith -Wwrite-strings -Wstrict-prototypes -Winline
|
||||
CFLAGS = -Wp,-MD,$(dir $*).$(notdir $*).d $(OPTFLAGS) $(REQFLAGS) $(WARNFLAGS)
|
||||
|
||||
SOFLAGS = -fPIC
|
||||
|
||||
.SUFFIXES: .c .o .a .so .lo .i .S .s .ls .ss .lss
|
||||
|
||||
.c.o:
|
||||
$(CC) $(CFLAGS) -c -o $@ $<
|
||||
|
||||
.c.i:
|
||||
$(CC) $(CFLAGS) -E -o $@ $<
|
||||
|
||||
.c.s:
|
||||
$(CC) $(CFLAGS) -S -o $@ $<
|
||||
|
||||
.S.o:
|
||||
$(CC) $(CFLAGS) -D__ASSEMBLY__ -c -o $@ $<
|
||||
|
||||
.S.s:
|
||||
$(CC) $(CFLAGS) -D__ASSEMBLY__ -E -o $@ $<
|
||||
|
||||
.S.lo:
|
||||
$(CC) $(CFLAGS) $(SOFLAGS) -D__ASSEMBLY__ -c -o $@ $<
|
||||
|
||||
.S.ls:
|
||||
$(CC) $(CFLAGS) $(SOFLAGS) -D__ASSEMBLY__ -E -o $@ $<
|
||||
|
||||
.s.o:
|
||||
$(CC) $(CFLAGS) -x assembler -c -o $@ $<
|
||||
|
||||
.ls.lo:
|
||||
$(CC) $(CFLAGS) $(SOFLAGS) -x assembler -c -o $@ $<
|
||||
|
||||
.c.lo:
|
||||
$(CC) $(CFLAGS) $(SOFLAGS) -c -o $@ $<
|
||||
|
||||
.c.ls:
|
||||
$(CC) $(CFLAGS) $(SOFLAGS) -S -o $@ $<
|
||||
|
||||
|
||||
|
|
@ -0,0 +1,135 @@
|
|||
#
|
||||
# Makefile
|
||||
#
|
||||
# Main makefile
|
||||
#
|
||||
|
||||
# Include configuration rules
|
||||
include MCONFIG
|
||||
|
||||
TESTS = $(patsubst %.c,%,$(wildcard tests/*.c)) \
|
||||
$(patsubst %.c,%.shared,$(wildcard tests/*.c))
|
||||
LIBOBJS = vsnprintf.o snprintf.o vsprintf.o sprintf.o \
|
||||
vsscanf.o sscanf.o ctypes.o \
|
||||
strntoumax.o strntoimax.o \
|
||||
atoi.o atol.o atoll.o \
|
||||
strtol.o strtoll.o strtoul.o strtoull.o \
|
||||
strtoimax.o strtoumax.o \
|
||||
globals.o exitc.o atexit.o onexit.o \
|
||||
execl.o execle.o execv.o execvpe.o execvp.o execlp.o execlpe.o \
|
||||
fork.o wait.o wait3.o waitpid.o system.o setpgrp.o \
|
||||
printf.o vprintf.o fprintf.o vfprintf.o perror.o \
|
||||
fopen.o fread.o fread2.o fgetc.o fgets.o \
|
||||
fwrite.o fwrite2.o fputc.o fputs.o puts.o \
|
||||
sleep.o usleep.o raise.o abort.o assert.o alarm.o pause.o \
|
||||
__signal.o signal.o bsd_signal.o siglist.o siglongjmp.o \
|
||||
sigaction.o sigpending.o sigprocmask.o sigsuspend.o \
|
||||
brk.o sbrk.o malloc.o realloc.o calloc.o mmap.o \
|
||||
memcpy.o memcmp.o memset.o memccpy.o memmem.o memswap.o \
|
||||
memmove.o \
|
||||
strcat.o strchr.o strcmp.o strcpy.o strdup.o strlen.o \
|
||||
strncat.o strstr.o strncmp.o strncpy.o strrchr.o strspn.o \
|
||||
strsep.o strtok.o \
|
||||
gethostname.o getdomainname.o getcwd.o \
|
||||
seteuid.o setegid.o setresuid.o setresgid.o \
|
||||
getenv.o setenv.o unsetenv.o getopt.o readdir.o \
|
||||
syslog.o closelog.o pty.o isatty.o reboot.o \
|
||||
time.o utime.o fdatasync.o llseek.o select.o nice.o getpriority.o \
|
||||
qsort.o lrand48.o srand48.o seed48.o \
|
||||
inet/inet_ntoa.o inet/inet_aton.o inet/inet_addr.o \
|
||||
inet/inet_ntop.o inet/inet_pton.o inet/bindresvport.o \
|
||||
send.o recv.o
|
||||
SOLIB = libc.so
|
||||
SOHASH = klibc.so
|
||||
|
||||
CRT0 = crt0.o
|
||||
LIB = libc.a
|
||||
|
||||
#all: tests $(CRT0) $(LIB) $(SOLIB) klibc.so
|
||||
all: $(CRT0) $(LIB) $(SOLIB) klibc.so
|
||||
|
||||
# Add any architecture-specific rules
|
||||
include arch/$(ARCH)/Makefile.inc
|
||||
|
||||
tests: $(TESTS)
|
||||
|
||||
tests/%.o : tests/%.c
|
||||
$(CC) $(CFLAGS) -c -o $@ $<
|
||||
|
||||
tests/% : tests/%.o $(LIB) $(CRT0)
|
||||
$(LD) $(LDFLAGS) -o $@ $(CRT0) $< $(LIB) $(LIBGCC)
|
||||
cp $@ $@.stripped
|
||||
$(STRIP) $@.stripped
|
||||
|
||||
tests/%.shared : tests/%.o interp.o $(SOLIB)
|
||||
$(LD) $(LDFLAGS) -o $@ -e main interp.o tests/$*.o -R $(SOLIB) $(LIBGCC)
|
||||
cp $@ $@.stripped
|
||||
$(STRIP) $@.stripped
|
||||
|
||||
$(LIB): __static_init.o $(LIBOBJS) $(ARCHOBJS) syscalls/static.obj socketcalls/static.obj
|
||||
rm -f $(LIB)
|
||||
$(AR) cq $(LIB) __static_init.o $(LIBOBJS) $(ARCHOBJS) syscalls/*.o socketcalls/*.o
|
||||
$(RANLIB) $(LIB)
|
||||
|
||||
$(SOLIB): $(CRT0) __shared_init.o $(LIBOBJS) $(ARCHOBJS) syscalls/static.obj socketcalls/static.obj
|
||||
$(LD) $(LDFLAGS) $(SHAREDFLAGS) -o $@ \
|
||||
$(CRT0) __shared_init.o $(LIBOBJS) $(ARCHOBJS) \
|
||||
syscalls/*.o socketcalls/*.o \
|
||||
$(LIBGCC)
|
||||
|
||||
sha1hash: sha1hash.c
|
||||
$(HOST_CC) $(HOST_CFLAGS) $(HOST_LDFLAGS) -o $@ $<
|
||||
|
||||
$(SOLIB).hash: $(SOLIB) sha1hash
|
||||
$(NM) $(SOLIB) | \
|
||||
egrep '^[0-9a-fA-F]+ [ADRTW] ' | sort | ./sha1hash > $@
|
||||
|
||||
$(SOHASH): $(SOLIB) $(SOLIB).hash
|
||||
cp -f $(SOLIB) $@
|
||||
$(STRIP) $@
|
||||
rm -f klibc-??????????????????????.so
|
||||
ln -f $@ klibc-`cat $(SOLIB).hash`.so
|
||||
|
||||
interp.o: interp.S $(SOLIB).hash
|
||||
$(CC) $(CFLAGS) -D__ASSEMBLY__ -DLIBDIR=\"$(SHLIBDIR)\" \
|
||||
-DSOHASH=\"`cat $(SOLIB).hash`\" \
|
||||
-c -o $@ $<
|
||||
|
||||
crt0.o: arch/$(ARCH)/crt0.o
|
||||
cp arch/$(ARCH)/crt0.o .
|
||||
|
||||
syscalls.dir: SYSCALLS syscalls.pl syscommon.h
|
||||
rm -rf syscalls
|
||||
mkdir syscalls
|
||||
$(PERL) syscalls.pl $(ARCH) SYSCALLS
|
||||
touch $@
|
||||
|
||||
socketcalls.dir: SOCKETCALLS socketcalls.pl socketcommon.h
|
||||
rm -rf socketcalls
|
||||
mkdir socketcalls
|
||||
$(PERL) socketcalls.pl $(ARCH) SOCKETCALLS
|
||||
touch $@
|
||||
|
||||
%/static.obj: %.dir
|
||||
$(MAKE) objects-$(basename $(notdir $@)) DIR=$*
|
||||
|
||||
STATIC = $(addsuffix .o,$(basename $(wildcard $(DIR)/*.[cS])))
|
||||
|
||||
objects-static: $(STATIC)
|
||||
touch $(DIR)/static.obj
|
||||
|
||||
clean: archclean
|
||||
find . -type f -a \( -name \*.[isoa] -o -name \*.l[iso] \) -print0 | xargs -0rt rm -f
|
||||
rm -f *.a *.so *.hash *.syms *.stripped
|
||||
rm -f $(TESTS) tests/*.stripped
|
||||
rm -rf syscalls syscalls.dir
|
||||
rm -rf socketcalls socketcalls.dir
|
||||
rm -f sha1hash
|
||||
|
||||
spotless: clean
|
||||
find . \( -name \*~ -o -name '.*.d' \) -not -type d -print0 | \
|
||||
xargs -0rt rm -f
|
||||
|
||||
ifneq ($(wildcard $(DIR)/.*.d),)
|
||||
include $(wildcard $(DIR)/.*.d)
|
||||
endif
|
||||
|
|
@ -0,0 +1,57 @@
|
|||
This is klibc, what is intended to be a minimalistic libc subset for
|
||||
use with initramfs. It is deliberately written for small size,
|
||||
minimal entaglement and portability, not speed. It is definitely a
|
||||
work in progress, and a lot of things are still missing.
|
||||
|
||||
|
||||
The build procedure is not very polished yet, but it should work like
|
||||
this:
|
||||
|
||||
a) In the source root directory (the directory above the one in which
|
||||
this file is found) create a symlink called "linux" pointing to a
|
||||
reasonably recent Linux kernel tree (2.4 or 2.5 should be OK.)
|
||||
This tree must have the include/asm symlink set up for the
|
||||
architecture you're compiling for, and include/linux/autoconf.h
|
||||
must exist. The easiest way to make sure of all of these is to do
|
||||
a "make config" or any of its variants on the kernel tree is
|
||||
question, followed by a "make dep".
|
||||
|
||||
b) If you're cross-compiling, change ARCH in the main MCONFIG file to
|
||||
the appropriate architecture, and set CROSS to your toolchain
|
||||
prefix.
|
||||
|
||||
IMPORTANT: if you're on a 64-bit machine with a 32-bit userland
|
||||
(ia64, mips64, ppc64 sparc64, s390x or x86_64), and you want to
|
||||
build the 32-bit version: you need to set ARCH to the 32-bit
|
||||
architecture as well as set up the linux/include/asm symlink to
|
||||
point to the 32-bit architecture. Building the 32-bit architecture
|
||||
usually (but not always) produces smaller binaries, and is likely
|
||||
to be better tested.
|
||||
|
||||
If you are on ARM, and want to build a thumb version of the library
|
||||
(this is supported), change OPTFLAGS in arch/arm/MCONFIG to build
|
||||
thumb code.
|
||||
|
||||
The following is the last known status of various architectures:
|
||||
|
||||
Known to work: alpha arm i386 s390 s390x sparc sparc64 x86_64*
|
||||
Works static, not shared: mips* arm-thumb sh*
|
||||
Need crt0.S updates: ppc
|
||||
Missing setjmp: ppc64
|
||||
Need porting work: cris ia64 m68k mips64 parisc
|
||||
|
||||
x86_64: requires a kernel header patch (to be created)
|
||||
mips, sh: linker problem; might work with fixed linker
|
||||
|
||||
Shared library support for sparc/sparc64 requires binutils 2.13.90.0.4.
|
||||
|
||||
Note that even the "known to work" ones likely have bugs. Please
|
||||
report them if you run into them.
|
||||
|
||||
c) Type "make" and pray...
|
||||
|
||||
d) Try the test programs in the tests/ directory. They should run...
|
||||
|
||||
Contact me at <hpa@zytor.com> for more info.
|
||||
|
||||
-hpa
|
||||
|
|
@ -0,0 +1,21 @@
|
|||
# -*- fundamental -*-
|
||||
#
|
||||
# These are calls that are invoked via the socketcall mechanism
|
||||
#
|
||||
int socket(int, int, int)
|
||||
int bind(int, struct sockaddr *, int)
|
||||
int connect(int, struct sockaddr *, socklen_t)
|
||||
int listen(int, int)
|
||||
int accept(int, struct sockaddr *, socklen_t *)
|
||||
int getsockname(int, struct sockaddr *, socklen_t *)
|
||||
int getpeername(int, struct sockaddr *, socklen_t *)
|
||||
int socketpair(int, int, int, int *)
|
||||
# int send(int, const void *, size_t, unsigned int)
|
||||
int sendto(int, const void *, size_t, int, const struct sockaddr *, socklen_t)
|
||||
# int recv(int, void *, size_t, unsigned int)
|
||||
int recvfrom(int, void *, size_t, unsigned int, struct sockaddr *, socklen_t *)
|
||||
int shutdown(int, int)
|
||||
int setsockopt(int, int, int, const void *, socklen_t)
|
||||
int getsockopt(int, int, int, void *, socklen_t *)
|
||||
int sendmsg(int, const struct msghdr *, unsigned int)
|
||||
int recvmsg(int, struct msghdr *, unsigned int)
|
||||
|
|
@ -0,0 +1,146 @@
|
|||
# -*- fundamental -*-
|
||||
#
|
||||
# This is a list of system calls we invoke "directly". These
|
||||
# are generated into syscall stubs in their own C files, so the
|
||||
# linker can do its job properly.
|
||||
#
|
||||
# The full description of a line is:
|
||||
# [<[!]arch,...>] type sysname[@systype][::funcname](args)
|
||||
#
|
||||
|
||||
#
|
||||
# Process-related syscalls
|
||||
#
|
||||
<!mips,mips64,sparc> pid_t vfork()
|
||||
<sparc> pid_t vfork@forkish()
|
||||
<!alpha> pid_t getpid()
|
||||
<alpha> pid_t getxpid@dual0::getpid()
|
||||
int setpgid(pid_t, pid_t)
|
||||
pid_t getpgid(pid_t)
|
||||
<!alpha> pid_t getppid()
|
||||
<alpha> pid_t getxpid@dual1::getppid()
|
||||
<!ia64> pid_t getpgrp()
|
||||
pid_t setsid()
|
||||
pid_t getsid(pid_t)
|
||||
pid_t wait4(pid_t, int *, int, struct rusage *)
|
||||
int execve(const char *, char * const *, char * const *)
|
||||
int setpriority(int, int, int)
|
||||
int sched_setscheduler(pid_t, int, const struct sched_param *)
|
||||
int sched_yield()
|
||||
|
||||
#
|
||||
# User and group IDs
|
||||
#
|
||||
int setuid(uid_t)
|
||||
int setgid(gid_t)
|
||||
<!alpha> uid_t getuid()
|
||||
<alpha> uid_t getxuid@dual0::getuid()
|
||||
<!alpha> gid_t getgid()
|
||||
<alpha> gid_t getxgid@dual0::getgid()
|
||||
<!alpha> uid_t geteuid()
|
||||
<alpha> uid_t getxuid@dual1::geteuid()
|
||||
<!alpha> gid_t getegid()
|
||||
<alpha> uid_t getxgid@dual1::getegid()
|
||||
int getgroups(int, gid_t *)
|
||||
int setgroups(size_t, const gid_t *)
|
||||
int setreuid(uid_t, uid_t)
|
||||
int setregid(gid_t, gid_t)
|
||||
int setfsuid(uid_t)
|
||||
int setfsgid(gid_t)
|
||||
|
||||
#
|
||||
# Filesystem-related system calls
|
||||
#
|
||||
int mount(const char *, const char *, const char *, unsigned long, const void *)
|
||||
<!alpha,ia64> int umount2(const char *, int)
|
||||
<alpha,ia64> int umount::umount2(const char *, int)
|
||||
<!m68k> int pivot_root(const char *, const char *)
|
||||
int sync()
|
||||
int statfs(const char *, struct statfs *)
|
||||
int fstatfs(int, struct statfs *)
|
||||
int swapon(const char *, int)
|
||||
int swapoff(const char *)
|
||||
|
||||
#
|
||||
# Inode-related system calls
|
||||
#
|
||||
int access(const char *, int)
|
||||
int link(const char *, const char *)
|
||||
int unlink(const char *)
|
||||
int chdir(const char *)
|
||||
int rename(const char *, const char *)
|
||||
int mknod(const char *, mode_t, dev_t)
|
||||
int chmod(const char *, mode_t)
|
||||
int mkdir(const char *, mode_t)
|
||||
int rmdir(const char *)
|
||||
<!alpha,mips,mips64> int pipe(int *)
|
||||
mode_t umask(mode_t)
|
||||
int chroot(const char *)
|
||||
int symlink(const char *, const char *)
|
||||
int readlink(const char *, char *, size_t)
|
||||
int stat(const char *, struct stat *)
|
||||
int lstat(const char *, struct stat *)
|
||||
int fstat(int, struct stat *)
|
||||
int getdents(unsigned int, struct dirent *, unsigned int)
|
||||
int chown(const char *, uid_t, gid_t)
|
||||
int fchown(int, uid_t, gid_t)
|
||||
int lchown(const char *, uid_t, gid_t)
|
||||
|
||||
#
|
||||
# I/O operations
|
||||
#
|
||||
ssize_t read(int, void *, size_t)
|
||||
ssize_t write(int, const void *, size_t)
|
||||
int open(const char *, int, mode_t)
|
||||
int close(int)
|
||||
off_t lseek(int, off_t, int)
|
||||
int dup(int)
|
||||
int dup2(int, int)
|
||||
int fcntl(int, int, long)
|
||||
int ioctl(int, int, void *)
|
||||
int flock(int, int)
|
||||
int poll(struct pollfd *, nfds_t, long)
|
||||
int fsync(int)
|
||||
int readv(int, const struct iovec *, int)
|
||||
int writev(int, const struct iovec *, int)
|
||||
|
||||
#
|
||||
# Signal operations
|
||||
#
|
||||
int kill(pid_t, int)
|
||||
int rt_sigaction(int, const struct sigaction *, struct sigaction *, size_t)
|
||||
int rt_sigsuspend(const sigset_t *, size_t)
|
||||
int rt_sigpending(sigset_t *, size_t)
|
||||
int rt_sigprocmask(int, const sigset_t *, sigset_t *, size_t)
|
||||
int getitimer(int, struct itimerval *)
|
||||
int setitimer(int, const struct itimerval *, struct itimerval *)
|
||||
|
||||
#
|
||||
# Time-related system calls
|
||||
#
|
||||
clock_t times(struct tms *)
|
||||
int gettimeofday(struct timeval *, struct timezone *)
|
||||
int settimeofday(const struct timeval *, const struct timezone *)
|
||||
int nanosleep(const struct timespec *, struct timespec *)
|
||||
|
||||
#
|
||||
# Memory
|
||||
#
|
||||
void * brk::__brk(void *)
|
||||
int munmap(void *, size_t)
|
||||
void * mremap(void *, size_t, size_t, unsigned long)
|
||||
int msync(const void *, size_t, int)
|
||||
int mprotect(const void *, size_t, int)
|
||||
|
||||
#
|
||||
# System stuff
|
||||
#
|
||||
int uname(struct utsname *)
|
||||
int setdomainname(const char *, size_t)
|
||||
int sethostname(const char *, size_t)
|
||||
int init_module(const char *, struct module *)
|
||||
void * create_module(const char *, size_t)
|
||||
int delete_module(const char *)
|
||||
int query_module(const char *, int, void *, size_t, size_t)
|
||||
int reboot::__reboot(int, int, int, void *)
|
||||
int syslog::klogctl(int, char *, int)
|
||||
|
|
@ -0,0 +1,56 @@
|
|||
/*
|
||||
* __shared_init.c
|
||||
*
|
||||
* This function takes the raw data block set up by the ELF loader
|
||||
* in the kernel and parses it. It is invoked by crt0.S which makes
|
||||
* any necessary adjustments and passes calls this function using
|
||||
* the standard C calling convention.
|
||||
*
|
||||
* The arguments are:
|
||||
* uintptr_t *elfdata -- The ELF loader data block; usually from the stack.
|
||||
* Basically a pointer to argc.
|
||||
* void (*onexit)(void) -- Function to install into onexit
|
||||
*/
|
||||
|
||||
#include <stddef.h>
|
||||
#include <stdlib.h>
|
||||
#include <stdint.h>
|
||||
#include <klibc/compiler.h>
|
||||
#include <elf.h>
|
||||
|
||||
char **environ;
|
||||
|
||||
__noreturn __libc_init(uintptr_t *elfdata, void (*onexit)(void))
|
||||
{
|
||||
int argc;
|
||||
char **argv, **envp, **envend;
|
||||
struct auxentry {
|
||||
uintptr_t type;
|
||||
uintptr_t v;
|
||||
} *auxentry;
|
||||
typedef int (*main_t)(int, char **, char **);
|
||||
main_t main_ptr = NULL;
|
||||
|
||||
(void)onexit; /* For now, we ignore this... */
|
||||
|
||||
argc = (int)*elfdata++;
|
||||
argv = (char **)elfdata;
|
||||
envp = argv+(argc+1);
|
||||
|
||||
/* The auxillary entry vector is after all the environment vars */
|
||||
for ( envend = envp ; *envend ; envend++ );
|
||||
auxentry = (struct auxentry *)(envend+1);
|
||||
|
||||
while ( auxentry->type ) {
|
||||
if ( auxentry->type == AT_ENTRY ) {
|
||||
main_ptr = (main_t)(auxentry->v);
|
||||
break;
|
||||
}
|
||||
auxentry++;
|
||||
}
|
||||
|
||||
environ = envp;
|
||||
exit(main_ptr(argc, argv, envp));
|
||||
}
|
||||
|
||||
|
||||
|
|
@ -0,0 +1,22 @@
|
|||
/*
|
||||
* __signal.c
|
||||
*/
|
||||
|
||||
#include <signal.h>
|
||||
|
||||
__sighandler_t __signal(int signum, __sighandler_t handler, int flags)
|
||||
{
|
||||
struct sigaction sa;
|
||||
|
||||
sa.sa_handler = handler;
|
||||
sa.sa_flags = flags;
|
||||
sigemptyset(&sa.sa_mask);
|
||||
|
||||
if ( sigaction(signum, &sa, &sa) ) {
|
||||
return (__sighandler_t)SIG_ERR;
|
||||
} else {
|
||||
return (__sighandler_t)sa.sa_handler;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
|
|
@ -0,0 +1,40 @@
|
|||
/*
|
||||
* __static_init.c
|
||||
*
|
||||
* This function takes the raw data block set up by the ELF loader
|
||||
* in the kernel and parses it. It is invoked by crt0.S which makes
|
||||
* any necessary adjustments and passes calls this function using
|
||||
* the standard C calling convention.
|
||||
*
|
||||
* The arguments are:
|
||||
* uintptr_t *elfdata -- The ELF loader data block; usually from the stack.
|
||||
* Basically a pointer to argc.
|
||||
* void (*onexit)(void) -- Function to install into onexit
|
||||
*/
|
||||
|
||||
#include <stddef.h>
|
||||
#include <stdlib.h>
|
||||
#include <stdint.h>
|
||||
#include <klibc/compiler.h>
|
||||
#include <elf.h>
|
||||
|
||||
char **environ;
|
||||
|
||||
extern int main(int, char **, char **);
|
||||
|
||||
__noreturn __libc_init(uintptr_t *elfdata, void (*onexit)(void))
|
||||
{
|
||||
int argc;
|
||||
char **argv, **envp;
|
||||
|
||||
(void)onexit; /* For now, we ignore this... */
|
||||
|
||||
argc = (int)*elfdata++;
|
||||
argv = (char **)elfdata;
|
||||
envp = argv+(argc+1);
|
||||
|
||||
environ = envp;
|
||||
exit(main(argc, argv, envp));
|
||||
}
|
||||
|
||||
|
||||
|
|
@ -0,0 +1,19 @@
|
|||
/*
|
||||
* abort.c
|
||||
*/
|
||||
|
||||
#include <stdlib.h>
|
||||
#include <unistd.h>
|
||||
#include <signal.h>
|
||||
|
||||
void abort(void)
|
||||
{
|
||||
sigset_t set;
|
||||
|
||||
sigemptyset(&set);
|
||||
sigaddset(&set, SIGABRT);
|
||||
sigprocmask(SIG_UNBLOCK, &set, NULL);
|
||||
raise(SIGABRT);
|
||||
_exit(255); /* raise() should have killed us */
|
||||
}
|
||||
|
||||
|
|
@ -0,0 +1,29 @@
|
|||
/*
|
||||
* alarm.c
|
||||
*/
|
||||
|
||||
#include <sys/time.h>
|
||||
#include <sys/syscall.h>
|
||||
|
||||
#ifdef __NR_alarm
|
||||
|
||||
_syscall1(unsigned int,alarm,unsigned int,seconds);
|
||||
|
||||
#else
|
||||
|
||||
/* Emulate alarm() via setitimer() */
|
||||
|
||||
unsigned int alarm(unsigned int seconds)
|
||||
{
|
||||
struct itimerval iv;
|
||||
|
||||
iv.it_interval.tv_sec = iv.it_interval.tv_usec = 0;
|
||||
iv.it_value.tv_sec = seconds;
|
||||
iv.it_value.tv_usec = 0;
|
||||
|
||||
setitimer(ITIMER_REAL, &iv, &iv);
|
||||
|
||||
return iv.it_value.tv_sec + (iv.it_value.tv_usec ? 1 : 0);
|
||||
}
|
||||
|
||||
#endif
|
||||
|
|
@ -0,0 +1,67 @@
|
|||
To port klibc to a new architecture, you need:
|
||||
|
||||
a) A directory structure
|
||||
|
||||
Each archtecture has an arch/ directory, which should include an
|
||||
MCONFIG and a Makefile.inc file.
|
||||
|
||||
b) Startup code (arch/*/crt0.S)
|
||||
|
||||
The crt0.S assembly routine typically corresponds to the following
|
||||
pseudo-C code. In addition, each architecture needs any support
|
||||
routines that gcc-generated code expects to find in the system library
|
||||
-- Alpha, for example, needs divide subroutines.
|
||||
|
||||
The "getenvtest" test program is a very good test for proper crt0.S
|
||||
functionality.
|
||||
|
||||
|
||||
extern __noreturn __libc_init(void *, void *);
|
||||
|
||||
__noreturn _start(void)
|
||||
{
|
||||
void *elf_data = get_elf_data_address(); /* Usually the stack address */
|
||||
void *atexit_ptr = get_atexit_ptr(); /* Usually in a register */
|
||||
|
||||
/* Some architectures need this for debugging to work */
|
||||
setup_null_stack_frame_if_necessary();
|
||||
|
||||
__libc_init(elf_data, atexit_ptr);
|
||||
}
|
||||
|
||||
|
||||
c) A setenv implementation (arch/*/setjmp.S, arch/*/include/klibc/archsetjmp.h)
|
||||
|
||||
On most (but not all!) architectures, this entails creating a setjmp
|
||||
buffer big enough to hold all callee-saved registers, plus the stack
|
||||
pointer and the return address. In setjmp.S you have:
|
||||
|
||||
* A "setjmp" function that writes out the callee-saved registers, the
|
||||
stack pointer and the return address to the buffer pointed to by the
|
||||
first argument, and then returns zero normally.
|
||||
|
||||
On some architectures you need to take some kind of action to make
|
||||
sure the contents of the stack is actually manifest in memory and
|
||||
not cached in the CPU. In some cases (e.g. on SPARC) this will
|
||||
automatically spill the registers onto the stack; then they don't
|
||||
need to be spilled into the jmp_buf.
|
||||
|
||||
* A "longjmp" function that read back these same registers from the
|
||||
jmp_buf pointed to by the first argument, and returns the second
|
||||
argument *to the address specified in the jmp_buf*.
|
||||
|
||||
On some architectures you need to take some kind of action to flush
|
||||
any cached stack data or return stack.
|
||||
|
||||
|
||||
d) Any support functions needed by gcc, *unless* they are in libgcc
|
||||
*and* libgcc is usable for klibc on your particular platform. If
|
||||
libgcc isn't usable for klibc (on MIPS, for example, libgcc is
|
||||
compiled in a way that is not compatible with klibc) there are
|
||||
reasonably good clones of most of the libgcc functions in the libgcc
|
||||
directory. To use them, add them to ARCHOBJS in
|
||||
arch/*/Makefile.inc.
|
||||
|
||||
|
||||
e) A link location for the shared klibc. This should be specified in
|
||||
SHAREDFLAGS in arch/*/MCONFIG.
|
||||
|
|
@ -0,0 +1,17 @@
|
|||
# -*- makefile -*-
|
||||
#
|
||||
# arch/alpha/MCONFIG
|
||||
#
|
||||
# Build configuration for this architecture
|
||||
#
|
||||
|
||||
OPTFLAGS = -Os -fomit-frame-pointer
|
||||
BITSIZE = 64
|
||||
|
||||
# Extra linkflags when building the shared version of the library
|
||||
# This address needs to be reachable using normal inter-module
|
||||
# calls, and work on the memory models for this architecture
|
||||
# 7 GB - normal binaries start at 4.5 GB, and the stack is below
|
||||
# the binary.
|
||||
SHAREDFLAGS = -Ttext 0x1c0000200
|
||||
|
||||
|
|
@ -0,0 +1,93 @@
|
|||
# -*- makefile -*-
|
||||
#
|
||||
# arch/alpha/Makefile.inc
|
||||
#
|
||||
# Special rules for this architecture. Note that this is actually
|
||||
# included from the main Makefile, and that pathnames should be
|
||||
# accordingly.
|
||||
#
|
||||
|
||||
# Special CFLAGS for the divide code
|
||||
DIVCFLAGS = $(REQFLAGS) \
|
||||
-O3 -fomit-frame-pointer -fcall-saved-1 -fcall-saved-2 \
|
||||
-fcall-saved-3 -fcall-saved-4 -fcall-saved-5 -fcall-saved-6 \
|
||||
-fcall-saved-7 -fcall-saved-8 -fcall-saved-15 -fcall-saved-16 \
|
||||
-fcall-saved-17 -fcall-saved-18 -fcall-saved-19 -fcall-saved-20 \
|
||||
-fcall-saved-21 -fcall-saved-22 -ffixed-23 -fcall-saved-24 \
|
||||
-ffixed-25 -ffixed-27
|
||||
|
||||
ARCHOBJS = \
|
||||
arch/$(ARCH)/__divqu.o \
|
||||
arch/$(ARCH)/__remqu.o \
|
||||
arch/$(ARCH)/__divq.o \
|
||||
arch/$(ARCH)/__remq.o \
|
||||
arch/$(ARCH)/__divlu.o \
|
||||
arch/$(ARCH)/__remlu.o \
|
||||
arch/$(ARCH)/__divl.o \
|
||||
arch/$(ARCH)/__reml.o \
|
||||
arch/$(ARCH)/pipe.o \
|
||||
arch/$(ARCH)/setjmp.o
|
||||
|
||||
ARCHSOOBJS = $(patsubst %.o,%.lo,$(ARCHOBJS))
|
||||
|
||||
arch/$(ARCH)/%.s: arch/$(ARCH)/%.ss
|
||||
sed -e 's/\$$0\b/$$27/g' -e 's/\$$24\b/$$99/g' \
|
||||
-e 's/\$$16\b/$$24/g' -e 's/\$$17\b/$$25/g' \
|
||||
-e 's/\$$26\b/$$23/g' -e 's/\$$99\b/$$16/g' < $< > $@
|
||||
|
||||
arch/$(ARCH)/%.ls: arch/$(ARCH)/%.lss
|
||||
sed -e 's/\$$0\b/$$27/g' -e 's/\$$24\b/$$99/g' \
|
||||
-e 's/\$$16\b/$$24/g' -e 's/\$$17\b/$$25/g' \
|
||||
-e 's/\$$26\b/$$23/g' -e 's/\$$99\b/$$16/g' < $< > $@
|
||||
|
||||
arch/$(ARCH)/__divqu.ss: arch/$(ARCH)/divide.c
|
||||
$(CC) $(DIVCFLAGS) -DSIGNED=0 -DREM=0 -DBITS=64 -DNAME=__divqu -S -o $@ $<
|
||||
|
||||
arch/$(ARCH)/__remqu.ss: arch/$(ARCH)/divide.c
|
||||
$(CC) $(DIVCFLAGS) -DSIGNED=0 -DREM=1 -DBITS=64 -DNAME=__remqu -S -o $@ $<
|
||||
|
||||
arch/$(ARCH)/__divq.ss: arch/$(ARCH)/divide.c
|
||||
$(CC) $(DIVCFLAGS) -DSIGNED=1 -DREM=0 -DBITS=64 -DNAME=__divq -S -o $@ $<
|
||||
|
||||
arch/$(ARCH)/__remq.ss: arch/$(ARCH)/divide.c
|
||||
$(CC) $(DIVCFLAGS) -DSIGNED=1 -DREM=1 -DBITS=64 -DNAME=__remq -S -o $@ $<
|
||||
|
||||
arch/$(ARCH)/__divlu.ss: arch/$(ARCH)/divide.c
|
||||
$(CC) $(DIVCFLAGS) -DSIGNED=0 -DREM=0 -DBITS=32 -DNAME=__divlu -S -o $@ $<
|
||||
|
||||
arch/$(ARCH)/__remlu.ss: arch/$(ARCH)/divide.c
|
||||
$(CC) $(DIVCFLAGS) -DSIGNED=0 -DREM=1 -DBITS=32 -DNAME=__remlu -S -o $@ $<
|
||||
|
||||
arch/$(ARCH)/__divl.ss: arch/$(ARCH)/divide.c
|
||||
$(CC) $(DIVCFLAGS) -DSIGNED=1 -DREM=0 -DBITS=32 -DNAME=__divl -S -o $@ $<
|
||||
|
||||
arch/$(ARCH)/__reml.ss: arch/$(ARCH)/divide.c
|
||||
$(CC) $(DIVCFLAGS) -DSIGNED=1 -DREM=1 -DBITS=32 -DNAME=__reml -S -o $@ $<
|
||||
|
||||
arch/$(ARCH)/__divqu.lss: arch/$(ARCH)/divide.c
|
||||
$(CC) $(DIVCFLAGS) -fPIC -DSIGNED=0 -DREM=0 -DBITS=64 -DNAME=__divqu -S -o $@ $<
|
||||
|
||||
arch/$(ARCH)/__remqu.lss: arch/$(ARCH)/divide.c
|
||||
$(CC) $(DIVCFLAGS) -fPIC -DSIGNED=0 -DREM=1 -DBITS=64 -DNAME=__remqu -S -o $@ $<
|
||||
|
||||
arch/$(ARCH)/__divq.lss: arch/$(ARCH)/divide.c
|
||||
$(CC) $(DIVCFLAGS) -fPIC -DSIGNED=1 -DREM=0 -DBITS=64 -DNAME=__divq -S -o $@ $<
|
||||
|
||||
arch/$(ARCH)/__remq.lss: arch/$(ARCH)/divide.c
|
||||
$(CC) $(DIVCFLAGS) -fPIC -DSIGNED=1 -DREM=1 -DBITS=64 -DNAME=__remq -S -o $@ $<
|
||||
|
||||
arch/$(ARCH)/__divlu.lss: arch/$(ARCH)/divide.c
|
||||
$(CC) $(DIVCFLAGS) -fPIC -DSIGNED=0 -DREM=0 -DBITS=32 -DNAME=__divlu -S -o $@ $<
|
||||
|
||||
arch/$(ARCH)/__remlu.lss: arch/$(ARCH)/divide.c
|
||||
$(CC) $(DIVCFLAGS) -fPIC -DSIGNED=0 -DREM=1 -DBITS=32 -DNAME=__remlu -S -o $@ $<
|
||||
|
||||
arch/$(ARCH)/__divl.lss: arch/$(ARCH)/divide.c
|
||||
$(CC) $(DIVCFLAGS) -fPIC -DSIGNED=1 -DREM=0 -DBITS=32 -DNAME=__divl -S -o $@ $<
|
||||
|
||||
arch/$(ARCH)/__reml.lss: arch/$(ARCH)/divide.c
|
||||
$(CC) $(DIVCFLAGS) -fPIC -DSIGNED=1 -DREM=1 -DBITS=32 -DNAME=__reml -S -o $@ $<
|
||||
|
||||
archclean:
|
||||
rm -f arch/$(ARCH)/*.ss arch/$(ARCH)/*.lss
|
||||
|
||||
|
|
@ -0,0 +1,23 @@
|
|||
The current Alpha chips don't provide hardware for integer
|
||||
division. The C compiler expects the functions
|
||||
|
||||
__divqu: 64-bit unsigned long divide
|
||||
__remqu: 64-bit unsigned long remainder
|
||||
__divq/__remq: signed 64-bit
|
||||
__divlu/__remlu: unsigned 32-bit
|
||||
__divl/__reml: signed 32-bit
|
||||
|
||||
These are not normal C functions: instead of the normal calling
|
||||
sequence, these expect their arguments in registers t10 and t11, and
|
||||
return the result in t12 (aka pv). Register AT may be clobbered
|
||||
(assembly temporary), anything else must be saved.
|
||||
|
||||
Furthermore, the return address is in t9 instead of ra.
|
||||
|
||||
Normal function Divide functions
|
||||
--------------- ----------------
|
||||
v0 ($0) t12/pv ($27)
|
||||
a0 ($16) t10 ($24)
|
||||
a1 ($17) t11 ($25)
|
||||
ra ($26) t9 ($23)
|
||||
|
||||
|
|
@ -0,0 +1,21 @@
|
|||
#
|
||||
# arch/alpha/crt0.S
|
||||
#
|
||||
|
||||
.text
|
||||
.type __start,@function
|
||||
.ent __start, 0
|
||||
.globl __start
|
||||
__start:
|
||||
.frame $30, 0, $26, 0
|
||||
mov $31, $15
|
||||
br $29, 1f
|
||||
1: ldgp $29, 0($29)
|
||||
.prologue 0
|
||||
|
||||
lda $16, 0($30) # ELF data structure
|
||||
lda $17, 0($0) # atexit pointer
|
||||
|
||||
jsr $26, __libc_init
|
||||
|
||||
.size __start,.-__start
|
||||
|
|
@ -0,0 +1,57 @@
|
|||
#include <stdint.h>
|
||||
#include <asm/gentrap.h>
|
||||
#include <asm/pal.h>
|
||||
|
||||
#if BITS == 64
|
||||
typedef uint64_t uint;
|
||||
typedef int64_t sint;
|
||||
#else
|
||||
typedef uint32_t uint;
|
||||
typedef int32_t sint;
|
||||
#endif
|
||||
|
||||
#ifdef SIGNED
|
||||
typedef sint xint;
|
||||
#else
|
||||
typedef uint xint;
|
||||
#endif
|
||||
|
||||
xint NAME (uint num, uint den)
|
||||
{
|
||||
uint quot = 0, qbit = 1;
|
||||
int minus = 0;
|
||||
xint v;
|
||||
|
||||
if ( den == 0 ) {
|
||||
/* This is really $16, but $16 and $24 are exchanged by a script */
|
||||
register unsigned long cause asm("$24") = GEN_INTDIV;
|
||||
asm volatile("call_pal %0" :: "i" (PAL_gentrap), "r" (cause));
|
||||
return 0; /* If trap returns... */
|
||||
}
|
||||
|
||||
#if SIGNED
|
||||
if ( (sint)(num^den) < 0 )
|
||||
minus = 1;
|
||||
if ( (sint)num < 0 ) num = -num;
|
||||
if ( (sint)den < 0 ) den = -den;
|
||||
#endif
|
||||
|
||||
/* Left-justify denominator and count shift */
|
||||
while ( (sint)den >= 0 ) {
|
||||
den <<= 1;
|
||||
qbit <<= 1;
|
||||
}
|
||||
|
||||
while ( qbit ) {
|
||||
if ( den <= num ) {
|
||||
num -= den;
|
||||
quot += qbit;
|
||||
}
|
||||
den >>= 1;
|
||||
qbit >>= 1;
|
||||
}
|
||||
|
||||
v = (xint)(REM ? num : quot);
|
||||
if ( minus ) v = -v;
|
||||
return v;
|
||||
}
|
||||
|
|
@ -0,0 +1,33 @@
|
|||
/*
|
||||
* arch/alpha/include/klibc/archsetjmp.h
|
||||
*/
|
||||
|
||||
#ifndef _KLIBC_ARCHSETJMP_H
|
||||
#define _KLIBC_ARCHSETJMP_H
|
||||
|
||||
struct __jmp_buf {
|
||||
unsigned long __s0;
|
||||
unsigned long __s1;
|
||||
unsigned long __s2;
|
||||
unsigned long __s3;
|
||||
unsigned long __s4;
|
||||
unsigned long __s5;
|
||||
unsigned long __fp;
|
||||
unsigned long __ra;
|
||||
unsigned long __gp;
|
||||
unsigned long __sp;
|
||||
|
||||
unsigned long __f2;
|
||||
unsigned long __f3;
|
||||
unsigned long __f4;
|
||||
unsigned long __f5;
|
||||
unsigned long __f6;
|
||||
unsigned long __f7;
|
||||
unsigned long __f8;
|
||||
unsigned long __f9;
|
||||
};
|
||||
|
||||
/* Must be an array so it will decay to a pointer when a function is called */
|
||||
typedef struct __jmp_buf jmp_buf[1];
|
||||
|
||||
#endif /* _KLIBC_ARCHSETJMP_H */
|
||||
|
|
@ -0,0 +1,53 @@
|
|||
/*
|
||||
* arch/alpha/include/klibc/archsys.h
|
||||
*
|
||||
* Architecture-specific syscall definitions
|
||||
*/
|
||||
|
||||
#ifndef _KLIBC_ARCHSYS_H
|
||||
#define _KLIBC_ARCHSYS_H
|
||||
|
||||
/* Alpha has some bizarre Tru64-derived system calls which return two
|
||||
different values in $0 and $20(!), respectively. The standard
|
||||
macros can't deal with these; even the ones that give the right
|
||||
return value have the wrong clobbers. */
|
||||
|
||||
#define _syscall0_dual0(type, name) \
|
||||
type name(void) \
|
||||
{ \
|
||||
long _sc_ret, _sc_err; \
|
||||
{ \
|
||||
register long _sc_0 __asm__("$0"); \
|
||||
register long _sc_19 __asm__("$19"); \
|
||||
register long _sc_20 __asm__("$20"); \
|
||||
\
|
||||
_sc_0 = __NR_##name; \
|
||||
__asm__("callsys" \
|
||||
: "=r"(_sc_0), "=r"(_sc_19), "=r" (_sc_20) \
|
||||
: "0"(_sc_0) \
|
||||
: _syscall_clobbers); \
|
||||
_sc_ret = _sc_0, _sc_err = _sc_19; (void)(_sc_20); \
|
||||
} \
|
||||
_syscall_return(type); \
|
||||
}
|
||||
|
||||
#define _syscall0_dual1(type, name) \
|
||||
type name(void) \
|
||||
{ \
|
||||
long _sc_ret, _sc_err; \
|
||||
{ \
|
||||
register long _sc_0 __asm__("$0"); \
|
||||
register long _sc_19 __asm__("$19"); \
|
||||
register long _sc_20 __asm__("$20"); \
|
||||
\
|
||||
_sc_0 = __NR_##name; \
|
||||
__asm__("callsys" \
|
||||
: "=r"(_sc_0), "=r"(_sc_19), "=r" (_sc_20) \
|
||||
: "0"(_sc_0) \
|
||||
: _syscall_clobbers); \
|
||||
_sc_ret = _sc_20, _sc_err = _sc_19; (void)(_sc_0); \
|
||||
} \
|
||||
_syscall_return(type); \
|
||||
}
|
||||
|
||||
#endif /* _KLIBC_ARCHSYS_H */
|
||||
|
|
@ -0,0 +1,44 @@
|
|||
/*
|
||||
* machine/asm.h
|
||||
*/
|
||||
|
||||
#ifndef _MACHINE_ASM_H
|
||||
#define _MACHINE_ASM_H
|
||||
|
||||
/* Standard aliases for Alpha register names */
|
||||
|
||||
#define v0 $0
|
||||
#define t0 $1
|
||||
#define t1 $2
|
||||
#define t2 $3
|
||||
#define t3 $4
|
||||
#define t4 $5
|
||||
#define t5 $6
|
||||
#define t6 $7
|
||||
#define t7 $8
|
||||
#define s0 $9
|
||||
#define s1 $10
|
||||
#define s2 $11
|
||||
#define s3 $12
|
||||
#define s4 $13
|
||||
#define s5 $14
|
||||
#define fp $15
|
||||
#define a0 $16
|
||||
#define a1 $17
|
||||
#define a2 $18
|
||||
#define a3 $19
|
||||
#define a4 $20
|
||||
#define a5 $21
|
||||
#define t8 $22
|
||||
#define t9 $23
|
||||
#define t10 $24
|
||||
#define t11 $25
|
||||
#define ra $26
|
||||
#define t12 $27 /* t12 and pv are both used for $27 */
|
||||
#define pv $27 /* t12 and pv are both used for $27 */
|
||||
#define at $28
|
||||
#define gp $29
|
||||
#define sp $30
|
||||
#define zero $31
|
||||
|
||||
#endif /* _MACHINE_ASM_H */
|
||||
|
|
@ -0,0 +1,28 @@
|
|||
#include <unistd.h>
|
||||
#include <sys/syscall.h>
|
||||
|
||||
/* pipe() on alpha returns both file descriptors in registers --
|
||||
$0 and $20 respectively. This is unlike any other system call,
|
||||
as far as I can tell. */
|
||||
|
||||
int pipe(int *fds)
|
||||
{
|
||||
register long sc_0 __asm__("$0");
|
||||
register long sc_19 __asm__("$19");
|
||||
register long sc_20 __asm__("$20");
|
||||
|
||||
sc_0 = __NR_pipe;
|
||||
asm volatile("callsys" : "=r" (sc_0), "=r" (sc_19), "=r" (sc_20)
|
||||
: "0" (sc_0)
|
||||
: _syscall_clobbers);
|
||||
|
||||
if ( sc_19 ) {
|
||||
errno = sc_19;
|
||||
return -1;
|
||||
}
|
||||
|
||||
fds[0] = sc_0;
|
||||
fds[1] = sc_20;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
|
@ -0,0 +1,77 @@
|
|||
#
|
||||
# setjmp.S
|
||||
#
|
||||
|
||||
#
|
||||
# The jmp_buf looks like:
|
||||
#
|
||||
# s0..5
|
||||
# fp
|
||||
# ra
|
||||
# gp
|
||||
# sp
|
||||
#
|
||||
|
||||
#include <machine/asm.h>
|
||||
|
||||
.text
|
||||
.align 3
|
||||
.type setjmp,@function
|
||||
.ent setjmp, 0
|
||||
.globl setjmp
|
||||
setjmp:
|
||||
lda v0, 0(zero)
|
||||
stq s0, 0(a0)
|
||||
stq s1, 8(a0)
|
||||
stq s2, 16(a0)
|
||||
stq s3, 24(a0)
|
||||
stq s4, 32(a0)
|
||||
stq s5, 40(a0)
|
||||
stq fp, 48(a0)
|
||||
stq ra, 56(a0)
|
||||
stq gp, 64(a0)
|
||||
stq sp, 72(a0)
|
||||
stt f2, 80(a0)
|
||||
stt f3, 88(a0)
|
||||
stt f4, 96(a0)
|
||||
stt f5, 104(a0)
|
||||
stt f6, 112(a0)
|
||||
stt f7, 120(a0)
|
||||
stt f8, 128(a0)
|
||||
stt f9, 136(a0)
|
||||
ret zero,(ra),1
|
||||
|
||||
.size setjmp,.-setjmp
|
||||
.end setjmp
|
||||
|
||||
.type longjmp,@function
|
||||
.ent longjmp, 0
|
||||
.globl longjmp
|
||||
longjmp:
|
||||
mov a1, v0
|
||||
ldq s0, 0(a0)
|
||||
ldq s1, 8(a0)
|
||||
ldq s2, 16(a0)
|
||||
ldq s3, 24(a0)
|
||||
ldq s4, 32(a0)
|
||||
ldq s5, 40(a0)
|
||||
ldq fp, 48(a0)
|
||||
ldq ra, 56(a0)
|
||||
ldq gp, 64(a0)
|
||||
ldq sp, 72(a0)
|
||||
ldt f2, 80(a0)
|
||||
ldt f3, 88(a0)
|
||||
ldt f4, 96(a0)
|
||||
ldt f5, 104(a0)
|
||||
ldt f6, 112(a0)
|
||||
ldt f7, 120(a0)
|
||||
ldt f8, 128(a0)
|
||||
ldt f9, 136(a0)
|
||||
/* We're bound to get a mispredict here, but at least give us
|
||||
a chance to get the return stack back in sync... */
|
||||
ret zero,(ra),1
|
||||
|
||||
.size longjmp,.-longjmp
|
||||
.end longjmp
|
||||
|
||||
|
||||
|
|
@ -0,0 +1,26 @@
|
|||
# -*- makefile -*-
|
||||
#
|
||||
# arch/arm/MCONFIG
|
||||
#
|
||||
# Special rules for this architecture. Note that this is actually
|
||||
# included from the main Makefile, and that pathnames should be
|
||||
# accordingly.
|
||||
#
|
||||
|
||||
THUMB = n
|
||||
CPU_ARCH := armv4
|
||||
CPU_TUNE := strongarm
|
||||
|
||||
OPTFLAGS = -Os -fomit-frame-pointer -march=$(CPU_ARCH) -mtune=$(CPU_TUNE)
|
||||
BITSIZE = 32
|
||||
|
||||
ifeq ($(THUMB),y)
|
||||
CPU_ARCH := $(CPU_ARCH)t
|
||||
OPTFLAGS += -mthumb
|
||||
LDFLAGS += --thumb-entry _start
|
||||
endif
|
||||
|
||||
# Extra linkflags when building the shared version of the library
|
||||
# This address needs to be reachable using normal inter-module
|
||||
# calls, and work on the memory models for this architecture
|
||||
SHAREDFLAGS = -Ttext 0x01000200
|
||||
|
|
@ -0,0 +1,31 @@
|
|||
# -*- makefile -*-
|
||||
#
|
||||
# arch/arm/Makefile.inc
|
||||
#
|
||||
# Special rules for this architecture. Note that this is actually
|
||||
# included from the main Makefile, and that pathnames should be
|
||||
# accordingly.
|
||||
#
|
||||
|
||||
ARCHOBJS = \
|
||||
libgcc/__divsi3.o \
|
||||
libgcc/__modsi3.o \
|
||||
libgcc/__udivsi3.o \
|
||||
libgcc/__umodsi3.o \
|
||||
libgcc/__udivmodsi4.o \
|
||||
libgcc/__divdi3.o \
|
||||
libgcc/__moddi3.o \
|
||||
libgcc/__udivdi3.o \
|
||||
libgcc/__umoddi3.o \
|
||||
libgcc/__udivmoddi4.o
|
||||
|
||||
ifeq ($(THUMB),y)
|
||||
ARCHOBJS += arch/arm/setjmp-thumb.o
|
||||
LIBGCC =
|
||||
else
|
||||
ARCHOBJS += arch/arm/setjmp-arm.o
|
||||
endif
|
||||
|
||||
ARCHSOOBJS = $(patsubst %.o,%.lo,$(ARCHOBJS))
|
||||
|
||||
archclean:
|
||||
|
|
@ -0,0 +1,25 @@
|
|||
#
|
||||
# arch/arm/crt0.S
|
||||
#
|
||||
# void _start(void)
|
||||
# {
|
||||
# /* Divine up argc, argv, and envp */
|
||||
# environ = envp;
|
||||
# exit(main(argc, argv, envp));
|
||||
# }
|
||||
#
|
||||
|
||||
.text
|
||||
.align 4
|
||||
.type _start,#function
|
||||
.globl _start
|
||||
|
||||
#ifdef __thumb__
|
||||
.thumb_func
|
||||
#endif
|
||||
|
||||
_start: mov r0, sp
|
||||
mov r1, #0
|
||||
bl __libc_init
|
||||
|
||||
.size _start,.-_start
|
||||
|
|
@ -0,0 +1,14 @@
|
|||
/*
|
||||
* arch/i386/include/klibc/archsetjmp.h
|
||||
*/
|
||||
|
||||
#ifndef _KLIBC_ARCHSETJMP_H
|
||||
#define _KLIBC_ARCHSETJMP_H
|
||||
|
||||
struct __jmp_buf {
|
||||
unsigned int regs[10];
|
||||
};
|
||||
|
||||
typedef struct __jmp_buf jmp_buf[1];
|
||||
|
||||
#endif /* _SETJMP_H */
|
||||
|
|
@ -0,0 +1,12 @@
|
|||
/*
|
||||
* arch/arm/include/klibc/archsys.h
|
||||
*
|
||||
* Architecture-specific syscall definitions
|
||||
*/
|
||||
|
||||
#ifndef _KLIBC_ARCHSYS_H
|
||||
#define _KLIBC_ARCHSYS_H
|
||||
|
||||
/* No special syscall definitions for this architecture */
|
||||
|
||||
#endif /* _KLIBC_ARCHSYS_H */
|
||||
|
|
@ -0,0 +1,40 @@
|
|||
#
|
||||
# arch/arm/setjmp.S
|
||||
#
|
||||
# setjmp/longjmp for the ARM architecture
|
||||
#
|
||||
|
||||
#
|
||||
# The jmp_buf is assumed to contain the following, in order:
|
||||
# r4
|
||||
# r5
|
||||
# r6
|
||||
# r7
|
||||
# r8
|
||||
# r9
|
||||
# r10
|
||||
# fp
|
||||
# sp
|
||||
# lr
|
||||
#
|
||||
|
||||
.text
|
||||
.align 4
|
||||
.globl setjmp
|
||||
.type setjmp, #function
|
||||
setjmp:
|
||||
stmia r0, {r4, r5, r6, r7, r8, r9, r10, fp, sp, lr}
|
||||
mov r0, #0
|
||||
mov pc, lr
|
||||
.size setjmp,.-setjmp
|
||||
|
||||
.text
|
||||
.align 4
|
||||
.globl longjmp
|
||||
.type longjmp, #function
|
||||
longjmp:
|
||||
ldmia r0, {r4, r5, r6, r7, r8, r9, r10, fp, sp, lr}
|
||||
movs r0, r1
|
||||
moveq r0, #1
|
||||
mov pc, lr
|
||||
.size longjmp,.-longjmp
|
||||
|
|
@ -0,0 +1,58 @@
|
|||
#
|
||||
# arch/arm/setjmp-thumb.S
|
||||
#
|
||||
# setjmp/longjmp for the ARM/thumb architecture
|
||||
#
|
||||
|
||||
#
|
||||
# The jmp_buf is assumed to contain the following, in order:
|
||||
# lr
|
||||
# r4
|
||||
# r5
|
||||
# r6
|
||||
# r7
|
||||
# r8
|
||||
# r9
|
||||
# r10
|
||||
# fp
|
||||
# sp
|
||||
#
|
||||
|
||||
.text
|
||||
.align 4
|
||||
.globl setjmp
|
||||
.type setjmp, #function
|
||||
.thumb_func
|
||||
setjmp:
|
||||
mov r3, lr
|
||||
stmia r0!, {r3, r4, r5, r6, r7}
|
||||
mov r3, r8
|
||||
mov r4, r9
|
||||
mov r5, r10
|
||||
mov r6, fp
|
||||
mov r7, sp
|
||||
stmia r0!, {r3, r4, r5, r6, r7}
|
||||
mov r0, #0
|
||||
mov pc, lr
|
||||
.size setjmp,.-setjmp
|
||||
|
||||
.text
|
||||
.align 4
|
||||
.globl longjmp
|
||||
.type longjmp, #function
|
||||
.thumb_func
|
||||
longjmp:
|
||||
mov r2, r0
|
||||
add r0, #5*4
|
||||
ldmia r0!, {r3, r4, r5, r6, r7}
|
||||
mov r8, r3
|
||||
mov r9, r4
|
||||
mov r10, r5
|
||||
mov fp, r6
|
||||
mov sp, r7
|
||||
ldmia r2!, {r3, r4, r5, r6, r7}
|
||||
mov r0, r1
|
||||
bne 1f
|
||||
mov r0, #1
|
||||
1: mov pc, r3
|
||||
.size longjmp,.-longjmp
|
||||
|
|
@ -0,0 +1,11 @@
|
|||
# -*- makefile -*-
|
||||
#
|
||||
# arch/cris/MCONFIG
|
||||
#
|
||||
# Special rules for this architecture. Note that this is actually
|
||||
# included from the main Makefile, and that pathnames should be
|
||||
# accordingly.
|
||||
#
|
||||
|
||||
OPTFLAGS = -Os -fomit-frame-pointer
|
||||
BITSIZE = 32
|
||||
|
|
@ -0,0 +1,10 @@
|
|||
# -*- makefile -*-
|
||||
#
|
||||
# arch/cris/Makefile.inc
|
||||
#
|
||||
# Special rules for this architecture. Note that this is actually
|
||||
# included from the main Makefile, and that pathnames should be
|
||||
# accordingly.
|
||||
#
|
||||
|
||||
archclean:
|
||||
|
|
@ -0,0 +1,12 @@
|
|||
/*
|
||||
* arch/cris/include/klibc/archsys.h
|
||||
*
|
||||
* Architecture-specific syscall definitions
|
||||
*/
|
||||
|
||||
#ifndef _KLIBC_ARCHSYS_H
|
||||
#define _KLIBC_ARCHSYS_H
|
||||
|
||||
/* No special syscall definitions for this architecture */
|
||||
|
||||
#endif /* _KLIBC_ARCHSYS_H */
|
||||
|
|
@ -0,0 +1,32 @@
|
|||
# -*- makefile -*-
|
||||
#
|
||||
# arch/i386/MCONFIG
|
||||
#
|
||||
# Special rules for this architecture. Note that this is actually
|
||||
# included from the main Makefile, and that pathnames should be
|
||||
# accordingly.
|
||||
#
|
||||
|
||||
# Comment this out to compile with register parameter passing
|
||||
# This doesn't work right now because gcc 3.2 (at least) calls
|
||||
# libgcc with the default calling convention instead of forcing
|
||||
# them to be cdecl
|
||||
# REGPARM = -mregparm=3 -DREGPARM
|
||||
|
||||
gcc_major := $(shell $(CC) -v 2>&1 | awk '/gcc version/{print int($$3)}')
|
||||
|
||||
OPTFLAGS = $(REGPARM) -march=i386 -Os
|
||||
|
||||
ifeq ($(gcc_major),3)
|
||||
OPTFLAGS += -falign-functions=0 -falign-jumps=0 -falign-loops=0
|
||||
else
|
||||
OPTFLAGS += -malign-functions=0 -malign-jumps=0 -malign-loops=0
|
||||
endif
|
||||
|
||||
BITSIZE = 32
|
||||
|
||||
# Extra linkflags when building the shared version of the library
|
||||
# This address needs to be reachable using normal inter-module
|
||||
# calls, and work on the memory models for this architecture
|
||||
# 96 MB - normal binaries start at 128 MB
|
||||
SHAREDFLAGS = -Ttext 0x06000200
|
||||
|
|
@ -0,0 +1,27 @@
|
|||
# -*- makefile -*-
|
||||
#
|
||||
# arch/i386/Makefile.inc
|
||||
#
|
||||
# Special rules for this architecture. Note that this is actually
|
||||
# included from the main Makefile, and that pathnames should be
|
||||
# accordingly.
|
||||
#
|
||||
|
||||
ARCHOBJS = \
|
||||
arch/$(ARCH)/exits.o \
|
||||
arch/$(ARCH)/socketcall.o \
|
||||
arch/$(ARCH)/setjmp.o \
|
||||
arch/$(ARCH)/libgcc/__ashldi3.o \
|
||||
arch/$(ARCH)/libgcc/__ashrdi3.o \
|
||||
arch/$(ARCH)/libgcc/__lshrdi3.o \
|
||||
arch/$(ARCH)/libgcc/__muldi3.o \
|
||||
arch/$(ARCH)/libgcc/__negdi2.o \
|
||||
libgcc/__divdi3.o \
|
||||
libgcc/__moddi3.o \
|
||||
libgcc/__udivdi3.o \
|
||||
libgcc/__umoddi3.o \
|
||||
libgcc/__udivmoddi4.o
|
||||
|
||||
ARCHSOOBJS = $(patsubst %.o,%.lo,$(ARCHOBJS))
|
||||
|
||||
archclean:
|
||||
|
|
@ -0,0 +1,33 @@
|
|||
#
|
||||
# arch/i386/crt0.S
|
||||
#
|
||||
# Does arch-specific initialization and invokes __libc_init
|
||||
# with the appropriate arguments.
|
||||
#
|
||||
# See __static_init.c or __shared_init.c for the expected
|
||||
# arguments.
|
||||
#
|
||||
|
||||
.text
|
||||
.align 4
|
||||
.type _start,@function
|
||||
.globl _start
|
||||
_start:
|
||||
# Save the address of the ELF argument array
|
||||
movl %esp,%eax # Address of ELF arguments
|
||||
# Set up a faux stack frame for the benefit of gdb
|
||||
xorl %ebp,%ebp
|
||||
push %ebp # Keep gdb from getting confused
|
||||
push %ebp # Keep gdb from getting confused
|
||||
# Push the arguments and called __libc_init()
|
||||
#ifndef REGPARM
|
||||
push %edx # atexit() function
|
||||
push %eax # ELF array
|
||||
#endif
|
||||
call __libc_init
|
||||
# If __libc_init returns, problem...
|
||||
ud2
|
||||
hlt
|
||||
|
||||
.size _start, .-_start
|
||||
|
||||
|
|
@ -0,0 +1,45 @@
|
|||
#
|
||||
# exit and _exit get included in *every* program, and gcc generates
|
||||
# horrible code for them. Yes, this only saves a few bytes, but
|
||||
# it does it in every program.
|
||||
#
|
||||
|
||||
#include <asm/unistd.h>
|
||||
|
||||
.data
|
||||
.align 4
|
||||
.globl __exit_handler
|
||||
.type __exit_handler,@object
|
||||
__exit_handler:
|
||||
.long _exit
|
||||
.size __exit_handler,4
|
||||
|
||||
.text
|
||||
.align 4
|
||||
.globl exit
|
||||
.type exit,@function
|
||||
exit:
|
||||
jmp *(__exit_handler)
|
||||
.size exit,.-exit
|
||||
|
||||
/* No need to save any registers... we're exiting! */
|
||||
.text
|
||||
.align 4
|
||||
.globl _exit
|
||||
.type _exit,@function
|
||||
_exit:
|
||||
#ifdef REGPARM
|
||||
movl %eax,%ebx
|
||||
#else
|
||||
popl %ebx
|
||||
popl %ebx
|
||||
#endif
|
||||
#if __NR_exit == 1
|
||||
xorl %eax,%eax
|
||||
incl %eax
|
||||
#else
|
||||
movl $__NR_exit,%eax
|
||||
#endif
|
||||
int $0x80
|
||||
hlt
|
||||
.size _exit,.-exit
|
||||
|
|
@ -0,0 +1,19 @@
|
|||
/*
|
||||
* arch/i386/include/klibc/archsetjmp.h
|
||||
*/
|
||||
|
||||
#ifndef _KLIBC_ARCHSETJMP_H
|
||||
#define _KLIBC_ARCHSETJMP_H
|
||||
|
||||
struct __jmp_buf {
|
||||
unsigned int __ebx;
|
||||
unsigned int __esp;
|
||||
unsigned int __ebp;
|
||||
unsigned int __esi;
|
||||
unsigned int __edi;
|
||||
unsigned int __eip;
|
||||
};
|
||||
|
||||
typedef struct __jmp_buf jmp_buf[1];
|
||||
|
||||
#endif /* _SETJMP_H */
|
||||
|
|
@ -0,0 +1,96 @@
|
|||
/*
|
||||
* arch/i386/include/klibc/archsys.h
|
||||
*
|
||||
* Architecture-specific syscall definitions
|
||||
*/
|
||||
|
||||
#ifndef _KLIBC_ARCHSYS_H
|
||||
#define _KLIBC_ARCHSYS_H
|
||||
|
||||
/*
|
||||
* If we're compiling i386 in PIC mode, we need to treat %ebx
|
||||
* specially. Most of these are copied from the equivalent file in
|
||||
* newlib and were written by Werner Almesberger.
|
||||
*/
|
||||
#if defined(__PIC__)
|
||||
|
||||
/* _syscall0() is the same as non-PIC */
|
||||
|
||||
#undef _syscall1
|
||||
#define _syscall1(type,name,type1,arg1) \
|
||||
type name(type1 arg1) \
|
||||
{ \
|
||||
long __res; \
|
||||
__asm__ __volatile__ ("push %%ebx; movl %2,%%ebx; int $0x80; pop %%ebx" \
|
||||
: "=a" (__res) \
|
||||
: "0" (__NR_##name),"r" ((long)(arg1))); \
|
||||
__syscall_return(type,__res); \
|
||||
}
|
||||
|
||||
#undef _syscall2
|
||||
#define _syscall2(type,name,type1,arg1,type2,arg2) \
|
||||
type name(type1 arg1,type2 arg2) \
|
||||
{ \
|
||||
long __res; \
|
||||
__asm__ __volatile__ ("push %%ebx; movl %2,%%ebx; int $0x80; pop %%ebx" \
|
||||
: "=a" (__res) \
|
||||
: "0" (__NR_##name),"r" ((long)(arg1)),"c" ((long)(arg2))); \
|
||||
__syscall_return(type,__res); \
|
||||
}
|
||||
|
||||
#undef _syscall3
|
||||
#define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3) \
|
||||
type name(type1 arg1,type2 arg2,type3 arg3) \
|
||||
{ \
|
||||
long __res; \
|
||||
__asm__ __volatile__ ("push %%ebx; movl %2,%%ebx; int $0x80; pop %%ebx" \
|
||||
: "=a" (__res) \
|
||||
: "0" (__NR_##name),"r" ((long)(arg1)),"c" ((long)(arg2)), \
|
||||
"d" ((long)(arg3))); \
|
||||
__syscall_return(type,__res); \
|
||||
}
|
||||
|
||||
#undef _syscall4
|
||||
#define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \
|
||||
type name (type1 arg1, type2 arg2, type3 arg3, type4 arg4) \
|
||||
{ \
|
||||
long __res; \
|
||||
__asm__ __volatile__ ("push %%ebx; movl %2,%%ebx; int $0x80; pop %%ebx" \
|
||||
: "=a" (__res) \
|
||||
: "0" (__NR_##name),"r" ((long)(arg1)),"c" ((long)(arg2)), \
|
||||
"d" ((long)(arg3)),"S" ((long)(arg4))); \
|
||||
__syscall_return(type,__res); \
|
||||
}
|
||||
|
||||
#undef _syscall5
|
||||
#define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \
|
||||
type5,arg5) \
|
||||
type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5) \
|
||||
{ \
|
||||
long __res; \
|
||||
__asm__ __volatile__ ("push %%ebx; movl %2,%%ebx; int $0x80; pop %%ebx" \
|
||||
: "=a" (__res) \
|
||||
: "0" (__NR_##name),"m" ((long)(arg1)),"c" ((long)(arg2)), \
|
||||
"d" ((long)(arg3)),"S" ((long)(arg4)),"D" ((long)(arg5))); \
|
||||
__syscall_return(type,__res); \
|
||||
}
|
||||
|
||||
#undef _syscall6
|
||||
#define _syscall6(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \
|
||||
type5,arg5,type6,arg6) \
|
||||
type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5,type6 arg6) \
|
||||
{ \
|
||||
long __res; \
|
||||
__asm__ __volatile__ ("push %%ebx; pushl %%ebp; movl %2,%%ebx; " \
|
||||
"movl %%eax,%%ebp; movl %1,%%eax; int $0x80; " \
|
||||
"pop %%ebp ; pop %%ebx" \
|
||||
: "=a" (__res) \
|
||||
: "i" (__NR_##name),"m" ((long)(arg1)),"c" ((long)(arg2)), \
|
||||
"d" ((long)(arg3)),"S" ((long)(arg4)),"D" ((long)(arg5)), \
|
||||
"a" ((long)(arg6))); \
|
||||
__syscall_return(type,__res); \
|
||||
}
|
||||
|
||||
#endif /* __PIC__ */
|
||||
|
||||
#endif /* _KLIBC_ARCHSYS_H */
|
||||
|
|
@ -0,0 +1,16 @@
|
|||
/*
|
||||
* arch/i386/include/klibc/diverr.h
|
||||
*/
|
||||
|
||||
#ifndef _KLIBC_DIVERR_H
|
||||
#define _KLIBC_DIVERR_H
|
||||
|
||||
#include <signal.h>
|
||||
|
||||
static __inline__ void
|
||||
__divide_error(void)
|
||||
{
|
||||
asm volatile("divl %0" :: "rm" (0) : "eax", "edx");
|
||||
}
|
||||
|
||||
#endif /* _KLIBC_DIVERR_H */
|
||||
|
|
@ -0,0 +1,29 @@
|
|||
/*
|
||||
* arch/i386/libgcc/__ashldi3.S
|
||||
*
|
||||
* 64-bit shl
|
||||
*/
|
||||
.text
|
||||
.align 4
|
||||
.globl __ashldi3
|
||||
.type __ashldi3,@function
|
||||
__ashldi3:
|
||||
#ifndef REGPARM
|
||||
movl 4(%esp),%eax
|
||||
movl 8(%esp),%edx
|
||||
movb 12(%esp),%cl
|
||||
#endif
|
||||
cmpb $32,%cl
|
||||
jae 1f
|
||||
|
||||
shldl %cl,%eax,%edx
|
||||
shl %cl,%eax
|
||||
ret
|
||||
|
||||
1:
|
||||
xorl %edx,%edx
|
||||
shl %cl,%eax
|
||||
xchgl %edx,%eax
|
||||
ret
|
||||
|
||||
.size __ashldi3,.-__ashldi3
|
||||
|
|
@ -0,0 +1,29 @@
|
|||
/*
|
||||
* arch/i386/libgcc/__ashrdi3.S
|
||||
*
|
||||
* 64-bit sar
|
||||
*/
|
||||
.text
|
||||
.align 4
|
||||
.globl __ashrdi3
|
||||
.type __ashrdi3,@function
|
||||
__ashrdi3:
|
||||
#ifndef REGPARM
|
||||
movl 4(%esp),%eax
|
||||
movl 8(%esp),%edx
|
||||
movb 12(%esp),%cl
|
||||
#endif
|
||||
cmpb $32,%cl
|
||||
jae 1f
|
||||
|
||||
shrdl %cl,%edx,%eax
|
||||
sarl %cl,%edx
|
||||
ret
|
||||
|
||||
1:
|
||||
sarl %cl,%edx
|
||||
movl %edx,%eax
|
||||
cdq
|
||||
ret
|
||||
|
||||
.size __ashrdi3,.-__ashrdi3
|
||||
|
|
@ -0,0 +1,29 @@
|
|||
/*
|
||||
* arch/i386/libgcc/__lshrdi3.S
|
||||
*
|
||||
* 64-bit shr
|
||||
*/
|
||||
.text
|
||||
.align 4
|
||||
.globl __lshrdi3
|
||||
.type __lshrdi3,@function
|
||||
__lshrdi3:
|
||||
#ifndef REGPARM
|
||||
movl 4(%esp),%eax
|
||||
movl 8(%esp),%edx
|
||||
movb 12(%esp),%cl
|
||||
#endif
|
||||
cmpb $32,%cl
|
||||
jae 1f
|
||||
|
||||
shrdl %cl,%edx,%eax
|
||||
shrl %cl,%edx
|
||||
ret
|
||||
|
||||
1:
|
||||
shrl %cl,%edx
|
||||
xorl %eax,%eax
|
||||
xchgl %edx,%eax
|
||||
ret
|
||||
|
||||
.size __lshrdi3,.-__lshrdi3
|
||||
|
|
@ -0,0 +1,34 @@
|
|||
/*
|
||||
* arch/i386/libgcc/__muldi3.S
|
||||
*
|
||||
* 64*64 = 64 bit unsigned multiplication
|
||||
*/
|
||||
|
||||
.text
|
||||
.align 4
|
||||
.globl __muldi3
|
||||
.type __muldi3,@function
|
||||
__muldi3:
|
||||
push %esi
|
||||
#ifndef REGPARM
|
||||
movl 8(%esp),%eax
|
||||
movl %eax,%esi
|
||||
movl 16(%esp),%ecx
|
||||
mull %ecx
|
||||
imull 12(%esp),%ecx
|
||||
imull 20(%esp),%esi
|
||||
addl %ecx,%edx
|
||||
addl %esi,%edx
|
||||
#else
|
||||
movl %eax,%esi
|
||||
push %edx
|
||||
mull %ecx
|
||||
imull 8(%esp),%esi
|
||||
addl %esi,%edx
|
||||
pop %esi
|
||||
imull %esi,%ecx
|
||||
addl %ecx,%edx
|
||||
#endif
|
||||
pop %esi
|
||||
ret
|
||||
.size __muldi3,.-__muldi3
|
||||
|
|
@ -0,0 +1,21 @@
|
|||
/*
|
||||
* arch/i386/libgcc/__negdi2.S
|
||||
*
|
||||
* 64-bit negation
|
||||
*/
|
||||
|
||||
.text
|
||||
.align 4
|
||||
.globl __negdi2
|
||||
.type __negdi2,@function
|
||||
__negdi2:
|
||||
#ifndef REGPARM
|
||||
movl 4(%esp),%eax
|
||||
movl 8(%esp),%edx
|
||||
#endif
|
||||
negl %edx
|
||||
negl %eax
|
||||
sbbl $0,%edx
|
||||
ret
|
||||
|
||||
.size __negdi2,.-__negdi2
|
||||
|
|
@ -0,0 +1,58 @@
|
|||
#
|
||||
# arch/i386/setjmp.S
|
||||
#
|
||||
# setjmp/longjmp for the i386 architecture
|
||||
#
|
||||
|
||||
#
|
||||
# The jmp_buf is assumed to contain the following, in order:
|
||||
# %ebx
|
||||
# %esp
|
||||
# %ebp
|
||||
# %esi
|
||||
# %edi
|
||||
# <return address>
|
||||
#
|
||||
|
||||
.text
|
||||
.align 4
|
||||
.globl setjmp
|
||||
.type setjmp, @function
|
||||
setjmp:
|
||||
#ifdef REGPARM
|
||||
movl %eax,%edx
|
||||
#else
|
||||
movl 4(%esp),%edx
|
||||
#endif
|
||||
popl %ecx # Return address, and adjust the stack
|
||||
xorl %eax,%eax # Return value
|
||||
movl %ebx,(%edx)
|
||||
movl %esp,4(%edx) # Post-return %esp!
|
||||
pushl %ecx # Make the call/return stack happy
|
||||
movl %ebp,8(%edx)
|
||||
movl %esi,12(%edx)
|
||||
movl %edi,16(%edx)
|
||||
movl %ecx,20(%edx) # Return address
|
||||
ret
|
||||
|
||||
.size setjmp,.-setjmp
|
||||
|
||||
.text
|
||||
.align 4
|
||||
.globl longjmp
|
||||
.type longjmp, @function
|
||||
longjmp:
|
||||
#ifdef REGPARM
|
||||
xchgl %eax,%edx
|
||||
#else
|
||||
movl 4(%esp),%edx # jmp_ptr address
|
||||
movl 8(%esp),%eax # Return value
|
||||
#endif
|
||||
movl (%edx),%ebx
|
||||
movl 4(%edx),%esp
|
||||
movl 8(%edx),%ebp
|
||||
movl 12(%edx),%esi
|
||||
movl 16(%edx),%edi
|
||||
jmp *20(%edx)
|
||||
|
||||
.size longjmp,.-longjmp
|
||||
|
|
@ -0,0 +1,38 @@
|
|||
#
|
||||
# socketcall.S
|
||||
#
|
||||
# On i386, the main (only?) user of socketcall(2), the memory array
|
||||
# socketcall(2) needs is conveniently already assembled for us on
|
||||
# the stack. Capitalize on that to make a common socketcall stub.
|
||||
#
|
||||
|
||||
#include <asm/unistd.h>
|
||||
|
||||
#ifdef __i386__
|
||||
|
||||
.text
|
||||
.align 4
|
||||
.globl __socketcall_common
|
||||
.type __socketcall_common, @function
|
||||
|
||||
__socketcall_common:
|
||||
pushl %ebx
|
||||
movzbl %al,%ebx # The socketcall number is passed in in %al
|
||||
leal 8(%esp),%ecx # Argument pointer
|
||||
movl $__NR_socketcall, %eax
|
||||
int $0x80
|
||||
cmpl $-125,%eax # Error return?
|
||||
popl %ebx
|
||||
jb 1f
|
||||
neg %eax
|
||||
movl %eax,errno
|
||||
xorl %eax,%eax
|
||||
decl %eax # Return = -1
|
||||
1:
|
||||
ret
|
||||
|
||||
.size __socketcall_common,.-__socketcall_common
|
||||
|
||||
#endif
|
||||
|
||||
|
||||
|
|
@ -0,0 +1,11 @@
|
|||
# -*- makefile -*-
|
||||
#
|
||||
# arch/ia64/MCONFIG
|
||||
#
|
||||
# Special rules for this architecture. Note that this is actually
|
||||
# included from the main Makefile, and that pathnames should be
|
||||
# accordingly.
|
||||
#
|
||||
|
||||
OPTFLAGS = -Os -fomit-frame-pointer
|
||||
BITSIZE = 64
|
||||
|
|
@ -0,0 +1,10 @@
|
|||
# -*- makefile -*-
|
||||
#
|
||||
# arch/ia64/Makefile.inc
|
||||
#
|
||||
# Special rules for this architecture. Note that this is actually
|
||||
# included from the main Makefile, and that pathnames should be
|
||||
# accordingly.
|
||||
#
|
||||
|
||||
archclean:
|
||||
|
|
@ -0,0 +1,12 @@
|
|||
/*
|
||||
* arch/ia64/include/klibc/archsys.h
|
||||
*
|
||||
* Architecture-specific syscall definitions
|
||||
*/
|
||||
|
||||
#ifndef _KLIBC_ARCHSYS_H
|
||||
#define _KLIBC_ARCHSYS_H
|
||||
|
||||
/* No special syscall definitions for this architecture */
|
||||
|
||||
#endif /* _KLIBC_ARCHSYS_H */
|
||||
|
|
@ -0,0 +1,11 @@
|
|||
# -*- makefile -*-
|
||||
#
|
||||
# arch/m68k/MCONFIG
|
||||
#
|
||||
# Special rules for this architecture. Note that this is actually
|
||||
# included from the main Makefile, and that pathnames should be
|
||||
# accordingly.
|
||||
#
|
||||
|
||||
OPTFLAGS = -Os -fomit-frame-pointer
|
||||
BITSIZE = 32
|
||||
|
|
@ -0,0 +1,10 @@
|
|||
# -*- makefile -*-
|
||||
#
|
||||
# arch/m68k/Makefile.inc
|
||||
#
|
||||
# Special rules for this architecture. Note that this is actually
|
||||
# included from the main Makefile, and that pathnames should be
|
||||
# accordingly.
|
||||
#
|
||||
|
||||
archclean:
|
||||
|
|
@ -0,0 +1,12 @@
|
|||
/*
|
||||
* arch/m68k/include/klibc/archsys.h
|
||||
*
|
||||
* Architecture-specific syscall definitions
|
||||
*/
|
||||
|
||||
#ifndef _KLIBC_ARCHSYS_H
|
||||
#define _KLIBC_ARCHSYS_H
|
||||
|
||||
/* No special syscall definitions for this architecture */
|
||||
|
||||
#endif /* _KLIBC_ARCHSYS_H */
|
||||
|
|
@ -0,0 +1,18 @@
|
|||
# -*- makefile -*-
|
||||
#
|
||||
# arch/mips/MCONFIG
|
||||
#
|
||||
# Special rules for this architecture. Note that this is actually
|
||||
# included from the main Makefile, and that pathnames should be
|
||||
# accordingly.
|
||||
#
|
||||
|
||||
ARCHREQFLAGS = -fno-pic -mno-abicalls
|
||||
OPTFLAGS = -Os -fomit-frame-pointer
|
||||
BITSIZE = 32
|
||||
|
||||
# Extra linkflags when building the shared version of the library
|
||||
# This address needs to be reachable using normal inter-module
|
||||
# calls, and work on the memory models for this architecture
|
||||
# 2 MB -- the normal starting point for text is 4 MB.
|
||||
SHAREDFLAGS = -Ttext 0x00200200
|
||||
|
|
@ -0,0 +1,24 @@
|
|||
# -*- makefile -*-
|
||||
#
|
||||
# arch/mips/Makefile.inc
|
||||
#
|
||||
# Special rules for this architecture. Note that this is actually
|
||||
# included from the main Makefile, and that pathnames should be
|
||||
# accordingly.
|
||||
#
|
||||
|
||||
ARCHOBJS = \
|
||||
arch/$(ARCH)/pipe.o \
|
||||
arch/$(ARCH)/vfork.o \
|
||||
arch/$(ARCH)/setjmp.o \
|
||||
libgcc/__divdi3.o \
|
||||
libgcc/__moddi3.o \
|
||||
libgcc/__udivdi3.o \
|
||||
libgcc/__umoddi3.o \
|
||||
libgcc/__udivmoddi4.o
|
||||
|
||||
|
||||
ARCHSOOBJS = $(patsubst %.o,%.lo,$(ARCHOBJS))
|
||||
|
||||
|
||||
archclean:
|
||||
|
|
@ -0,0 +1,25 @@
|
|||
#
|
||||
# arch/mips/crt0.S
|
||||
#
|
||||
# Does arch-specific initialization and invokes __libc_init
|
||||
# with the appropriate arguments.
|
||||
#
|
||||
# See __static_init.c or __shared_init.c for the expected
|
||||
# arguments.
|
||||
#
|
||||
|
||||
#include <machine/asm.h>
|
||||
|
||||
NESTED(__start, 32, sp)
|
||||
subu sp, 32
|
||||
sw zero, 16(sp)
|
||||
|
||||
lui gp, %hi(_gp) # Initialize gp
|
||||
addiu gp, gp, _gp
|
||||
|
||||
addiu a0, sp, 32 # Pointer to ELF entry structure
|
||||
move a1, v0 # Kernel-provided atexit() pointer
|
||||
|
||||
jal __libc_init
|
||||
|
||||
END(__start)
|
||||
|
|
@ -0,0 +1,39 @@
|
|||
/*
|
||||
* arch/mips/include/klibc/archsetjmp.h
|
||||
*/
|
||||
|
||||
#ifndef _KLIBC_ARCHSETJMP_H
|
||||
#define _KLIBC_ARCHSETJMP_H
|
||||
|
||||
struct __jmp_buf {
|
||||
unsigned long __s0;
|
||||
unsigned long __s1;
|
||||
unsigned long __s2;
|
||||
unsigned long __s3;
|
||||
unsigned long __s4;
|
||||
unsigned long __s5;
|
||||
unsigned long __s6;
|
||||
unsigned long __s7;
|
||||
unsigned long __gp;
|
||||
unsigned long __sp;
|
||||
unsigned long __s8;
|
||||
unsigned long __ra;
|
||||
unsigned long __f20;
|
||||
unsigned long __f21;
|
||||
unsigned long __f22;
|
||||
unsigned long __f23;
|
||||
unsigned long __f24;
|
||||
unsigned long __f25;
|
||||
unsigned long __f26;
|
||||
unsigned long __f27;
|
||||
unsigned long __f28;
|
||||
unsigned long __f29;
|
||||
unsigned long __f30;
|
||||
unsigned long __f31;
|
||||
unsigned long __fcr31;
|
||||
unsigned long __unused;
|
||||
} __attribute__((aligned(8)));
|
||||
|
||||
typedef struct __jmp_buf jmp_buf[1];
|
||||
|
||||
#endif /* _KLIBC_ARCHSETJMP_H */
|
||||
|
|
@ -0,0 +1,12 @@
|
|||
/*
|
||||
* arch/mips/include/klibc/archsys.h
|
||||
*
|
||||
* Architecture-specific syscall definitions
|
||||
*/
|
||||
|
||||
#ifndef _KLIBC_ARCHSYS_H
|
||||
#define _KLIBC_ARCHSYS_H
|
||||
|
||||
/* No special syscall definitions for this architecture */
|
||||
|
||||
#endif /* _KLIBC_ARCHSYS_H */
|
||||
|
|
@ -0,0 +1,11 @@
|
|||
/*
|
||||
* arch/mips/include/machine/asm.h
|
||||
*/
|
||||
|
||||
#ifndef _MACHINE_ASM_H
|
||||
#define _MACHINE_ASM_H
|
||||
|
||||
#include <asm/regdef.h>
|
||||
#include <asm/asm.h>
|
||||
|
||||
#endif /* _MACHINE_ASM_H */
|
||||
|
|
@ -0,0 +1,20 @@
|
|||
/*
|
||||
* arch/mips/include/sgidefs.h
|
||||
*/
|
||||
|
||||
/* Some ABI constants */
|
||||
|
||||
#ifndef _SGIDEFS_H
|
||||
#define _SGIDEFS_H
|
||||
|
||||
#define _MIPS_ISA_MIPS1 1
|
||||
#define _MIPS_ISA_MIPS2 2
|
||||
#define _MIPS_ISA_MIPS3 3
|
||||
#define _MIPS_ISA_MIPS4 4
|
||||
#define _MIPS_ISA_MIPS5 5
|
||||
|
||||
#define _MIPS_SIM_ABI32 1
|
||||
#define _MIPS_SIM_NABI32 2
|
||||
#define _MIPS_SIM_ABI64 3
|
||||
|
||||
#endif /* _SGIDEFS_H */
|
||||
|
|
@ -0,0 +1,16 @@
|
|||
#include <asm/asm.h>
|
||||
#include <asm/regdef.h>
|
||||
#include <asm/unistd.h>
|
||||
|
||||
LEAF(pipe)
|
||||
li v0, __NR_pipe
|
||||
syscall
|
||||
bnez a3, 1f
|
||||
sw v0, (a0)
|
||||
sw v1, (a1)
|
||||
li v0, 0
|
||||
b 2f
|
||||
1: sw v0, errno
|
||||
li v0, -1
|
||||
2: jr ra
|
||||
END(pipe)
|
||||
|
|
@ -0,0 +1,82 @@
|
|||
#
|
||||
# arch/mips/setjmp.S
|
||||
#
|
||||
# setjmp/longjmp for the MIPS architecture
|
||||
#
|
||||
# The jmp_buf is assumed to contain the following, in order:
|
||||
# s0..s7
|
||||
# gp
|
||||
# sp
|
||||
# s8
|
||||
# ra
|
||||
# f20..f31
|
||||
# fcr31
|
||||
#
|
||||
|
||||
#include <machine/asm.h>
|
||||
|
||||
LEAF(setjmp)
|
||||
sw s0, 0(a0)
|
||||
sw s1, 4(a0)
|
||||
sw s2, 8(a0)
|
||||
sw s3, 12(a0)
|
||||
sw s4, 16(a0)
|
||||
sw s5, 20(a0)
|
||||
sw s6, 24(a0)
|
||||
sw s7, 28(a0)
|
||||
sw gp, 32(a0)
|
||||
sw sp, 36(a0)
|
||||
sw s8, 40(a0)
|
||||
sw ra, 44(a0)
|
||||
cfc1 t0,$31
|
||||
swc1 $f20,48(a0)
|
||||
swc1 $f21,52(a0)
|
||||
swc1 $f22,56(a0)
|
||||
swc1 $f23,60(a0)
|
||||
swc1 $f24,64(a0)
|
||||
swc1 $f25,68(a0)
|
||||
swc1 $f26,72(a0)
|
||||
swc1 $f27,76(a0)
|
||||
swc1 $f28,80(a0)
|
||||
swc1 $f29,84(a0)
|
||||
swc1 $f30,88(a0)
|
||||
swc1 $f31,92(a0)
|
||||
sw t0,96(a0)
|
||||
move v0,zero
|
||||
jr ra
|
||||
|
||||
END(setjmp)
|
||||
|
||||
LEAF(longjmp)
|
||||
lw s0, 0(a0)
|
||||
lw s1, 4(a0)
|
||||
lw s2, 8(a0)
|
||||
lw s3, 12(a0)
|
||||
lw s4, 16(a0)
|
||||
lw s5, 20(a0)
|
||||
lw s6, 24(a0)
|
||||
lw s7, 28(a0)
|
||||
lw gp, 32(a0)
|
||||
lw sp, 36(a0)
|
||||
lw s8, 40(a0)
|
||||
lw ra, 44(a0)
|
||||
lw t0, 96(a0)
|
||||
lwc1 $f20,48(a0)
|
||||
lwc1 $f21,52(a0)
|
||||
lwc1 $f22,56(a0)
|
||||
lwc1 $f23,60(a0)
|
||||
lwc1 $f24,64(a0)
|
||||
lwc1 $f25,68(a0)
|
||||
lwc1 $f26,72(a0)
|
||||
lwc1 $f27,76(a0)
|
||||
lwc1 $f28,80(a0)
|
||||
lwc1 $f29,84(a0)
|
||||
lwc1 $f30,88(a0)
|
||||
lwc1 $f31,92(a0)
|
||||
ctc1 t0,$31
|
||||
move v0,a1
|
||||
jr ra
|
||||
|
||||
END(longjmp)
|
||||
|
||||
|
||||
|
|
@ -0,0 +1,19 @@
|
|||
#include <asm/asm.h>
|
||||
#include <asm/regdef.h>
|
||||
#include <asm/unistd.h>
|
||||
|
||||
#define CLONE_VM 0x00000100
|
||||
#define CLONE_VFORK 0x00004000
|
||||
#define SIGCHLD 18
|
||||
|
||||
LEAF(vfork)
|
||||
li a0, CLONE_VFORK | CLONE_VM | SIGCHLD
|
||||
li a1, 0
|
||||
li v0, __NR_clone
|
||||
syscall
|
||||
bnez a3, 1f
|
||||
b 2f
|
||||
1: sw v0, errno
|
||||
li v0, -1
|
||||
2: jr ra
|
||||
END(vfork)
|
||||
|
|
@ -0,0 +1,11 @@
|
|||
# -*- makefile -*-
|
||||
#
|
||||
# arch/mips64/MCONFIG
|
||||
#
|
||||
# Special rules for this architecture. Note that this is actually
|
||||
# included from the main Makefile, and that pathnames should be
|
||||
# accordingly.
|
||||
#
|
||||
|
||||
OPTFLAGS = -Os -fomit-frame-pointer
|
||||
BITSIZE = 64
|
||||
|
|
@ -0,0 +1,10 @@
|
|||
# -*- makefile -*-
|
||||
#
|
||||
# arch/mips64/Makefile.inc
|
||||
#
|
||||
# Special rules for this architecture. Note that this is actually
|
||||
# included from the main Makefile, and that pathnames should be
|
||||
# accordingly.
|
||||
#
|
||||
|
||||
archclean:
|
||||
|
|
@ -0,0 +1,12 @@
|
|||
/*
|
||||
* arch/mips64/include/klibc/archsys.h
|
||||
*
|
||||
* Architecture-specific syscall definitions
|
||||
*/
|
||||
|
||||
#ifndef _KLIBC_ARCHSYS_H
|
||||
#define _KLIBC_ARCHSYS_H
|
||||
|
||||
/* No special syscall definitions for this architecture */
|
||||
|
||||
#endif /* _KLIBC_ARCHSYS_H */
|
||||
|
|
@ -0,0 +1,11 @@
|
|||
# -*- makefile -*-
|
||||
#
|
||||
# arch/parisc/MCONFIG
|
||||
#
|
||||
# Special rules for this architecture. Note that this is actually
|
||||
# included from the main Makefile, and that pathnames should be
|
||||
# accordingly.
|
||||
#
|
||||
|
||||
OPTFLAGS = -Os -fomit-frame-pointer
|
||||
BITSIZE = 32
|
||||
|
|
@ -0,0 +1,10 @@
|
|||
# -*- makefile -*-
|
||||
#
|
||||
# arch/parisc/Makefile.inc
|
||||
#
|
||||
# Special rules for this architecture. Note that this is actually
|
||||
# included from the main Makefile, and that pathnames should be
|
||||
# accordingly.
|
||||
#
|
||||
|
||||
archclean:
|
||||
|
|
@ -0,0 +1,12 @@
|
|||
/*
|
||||
* arch/parisc/include/klibc/archsys.h
|
||||
*
|
||||
* Architecture-specific syscall definitions
|
||||
*/
|
||||
|
||||
#ifndef _KLIBC_ARCHSYS_H
|
||||
#define _KLIBC_ARCHSYS_H
|
||||
|
||||
/* No special syscall definitions for this architecture */
|
||||
|
||||
#endif /* _KLIBC_ARCHSYS_H */
|
||||
|
|
@ -0,0 +1,11 @@
|
|||
# -*- makefile -*-
|
||||
#
|
||||
# arch/ppc/MCONFIG
|
||||
#
|
||||
# Special rules for this architecture. Note that this is actually
|
||||
# included from the main Makefile, and that pathnames should be
|
||||
# accordingly.
|
||||
#
|
||||
|
||||
OPTFLAGS = -Os -fomit-frame-pointer
|
||||
BITSIZE = 32
|
||||
|
|
@ -0,0 +1,15 @@
|
|||
# -*- makefile -*-
|
||||
#
|
||||
# arch/ppc/Makefile.inc
|
||||
#
|
||||
# Special rules for this architecture. Note that this is actually
|
||||
# included from the main Makefile, and that pathnames should be
|
||||
# accordingly.
|
||||
#
|
||||
|
||||
ARCHOBJS = \
|
||||
arch/$(ARCH)/setjmp.o
|
||||
|
||||
ARCHSOOBJS = $(patsubst %.o,%.lo,$(ARCHOBJS))
|
||||
|
||||
archclean:
|
||||
|
|
@ -0,0 +1,29 @@
|
|||
#
|
||||
# arch/ppc/crt0.S
|
||||
#
|
||||
# void _start(void)
|
||||
# {
|
||||
# /* Divine up argc, argv, and envp */
|
||||
# environ = envp;
|
||||
# exit(main(argc, argv, envp));
|
||||
# }
|
||||
#
|
||||
|
||||
.text
|
||||
.align 4
|
||||
.type _start,@function
|
||||
.globl _start
|
||||
_start:
|
||||
lwz 3,0(1)
|
||||
addi 4,1,4
|
||||
addi 5,1,8
|
||||
slwi 0,3,2
|
||||
add 5,5,0
|
||||
li 0,0
|
||||
stwu 0,-16(1)
|
||||
lis 9,environ@ha
|
||||
stw 5,environ@l(9)
|
||||
bl main
|
||||
bl exit
|
||||
|
||||
.size _start,.-_start
|
||||
|
|
@ -0,0 +1,36 @@
|
|||
/*
|
||||
* arch/ppc/include/klibc/archsetjmp.h
|
||||
*/
|
||||
|
||||
#ifndef _KLIBC_ARCHSETJMP_H
|
||||
#define _KLIBC_ARCHSETJMP_H
|
||||
|
||||
struct __jmp_buf {
|
||||
unsigned long __r2;
|
||||
unsigned long __sp;
|
||||
unsigned long __lr;
|
||||
unsigned long __cr;
|
||||
unsigned long __r13;
|
||||
unsigned long __r14;
|
||||
unsigned long __r15;
|
||||
unsigned long __r16;
|
||||
unsigned long __r17;
|
||||
unsigned long __r18;
|
||||
unsigned long __r19;
|
||||
unsigned long __r20;
|
||||
unsigned long __r21;
|
||||
unsigned long __r22;
|
||||
unsigned long __r23;
|
||||
unsigned long __r24;
|
||||
unsigned long __r25;
|
||||
unsigned long __r26;
|
||||
unsigned long __r27;
|
||||
unsigned long __r28;
|
||||
unsigned long __r29;
|
||||
unsigned long __r30;
|
||||
unsigned long __r31;
|
||||
};
|
||||
|
||||
typedef struct __jmp_buf jmp_buf[1];
|
||||
|
||||
#endif /* _SETJMP_H */
|
||||
|
|
@ -0,0 +1,55 @@
|
|||
/*
|
||||
* arch/ppc/include/klibc/archsys.h
|
||||
*
|
||||
* Architecture-specific syscall definitions
|
||||
*/
|
||||
|
||||
#ifndef _KLIBC_ARCHSYS_H
|
||||
#define _KLIBC_ARCHSYS_H
|
||||
|
||||
/* PowerPC seems to lack _syscall6() in its headers */
|
||||
/* This seems to work on both 32- and 64-bit ppc */
|
||||
|
||||
#ifndef _syscall6
|
||||
|
||||
#define _syscall6(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \
|
||||
type5,arg5,type6,arg6) \
|
||||
type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5,type6 arg6) \
|
||||
{ \
|
||||
unsigned long __sc_ret, __sc_err; \
|
||||
{ \
|
||||
register unsigned long __sc_0 __asm__ ("r0"); \
|
||||
register unsigned long __sc_3 __asm__ ("r3"); \
|
||||
register unsigned long __sc_4 __asm__ ("r4"); \
|
||||
register unsigned long __sc_5 __asm__ ("r5"); \
|
||||
register unsigned long __sc_6 __asm__ ("r6"); \
|
||||
register unsigned long __sc_7 __asm__ ("r7"); \
|
||||
register unsigned long __sc_8 __asm__ ("r8"); \
|
||||
\
|
||||
__sc_3 = (unsigned long) (arg1); \
|
||||
__sc_4 = (unsigned long) (arg2); \
|
||||
__sc_5 = (unsigned long) (arg3); \
|
||||
__sc_6 = (unsigned long) (arg4); \
|
||||
__sc_7 = (unsigned long) (arg5); \
|
||||
__sc_8 = (unsigned long) (arg6); \
|
||||
__sc_0 = __NR_##name; \
|
||||
__asm__ __volatile__ \
|
||||
("sc \n\t" \
|
||||
"mfcr %1 " \
|
||||
: "=&r" (__sc_3), "=&r" (__sc_0) \
|
||||
: "0" (__sc_3), "1" (__sc_0), \
|
||||
"r" (__sc_4), \
|
||||
"r" (__sc_5), \
|
||||
"r" (__sc_6), \
|
||||
"r" (__sc_7), \
|
||||
"r" (__sc_8) \
|
||||
: __syscall_clobbers); \
|
||||
__sc_ret = __sc_3; \
|
||||
__sc_err = __sc_0; \
|
||||
} \
|
||||
__syscall_return (type); \
|
||||
}
|
||||
|
||||
#endif /* _syscall6() missing */
|
||||
|
||||
#endif /* _KLIBC_ARCHSYS_H */
|
||||
|
|
@ -0,0 +1,35 @@
|
|||
#
|
||||
# arch/ppc/setjmp.S
|
||||
#
|
||||
# Basic setjmp/longjmp implementation
|
||||
# This file was derived from the equivalent file in NetBSD
|
||||
#
|
||||
|
||||
.text
|
||||
.align 4
|
||||
.type setjmp,@function
|
||||
.globl setjmp
|
||||
setjmp:
|
||||
mflr %r11 /* save return address */
|
||||
mfcr %r12 /* save condition register */
|
||||
mr %r10,%r1 /* save stack pointer */
|
||||
mr %r9,%r2 /* save GPR2 (not needed) */
|
||||
stmw %r9,0(%r3) /* save r9..r31 */
|
||||
li %r3,0 /* indicate success */
|
||||
blr /* return */
|
||||
|
||||
.size setjmp,.-setjmp
|
||||
|
||||
.type longjmp,@function
|
||||
.globl longjmp
|
||||
longjmp:
|
||||
lmw %r9,0(%r3) /* save r9..r31 */
|
||||
mtlr %r11 /* restore LR */
|
||||
mtcr %r12 /* restore CR */
|
||||
mr %r2,%r9 /* restore GPR2 (not needed) */
|
||||
mr %r1,%r10 /* restore stack */
|
||||
mr %r3,%r4 /* get return value */
|
||||
blr /* return */
|
||||
|
||||
.size longjmp,.-longjmp
|
||||
|
||||
|
|
@ -0,0 +1,11 @@
|
|||
# -*- makefile -*-
|
||||
#
|
||||
# arch/ppc64/MCONFIG
|
||||
#
|
||||
# Special rules for this architecture. Note that this is actually
|
||||
# included from the main Makefile, and that pathnames should be
|
||||
# accordingly.
|
||||
#
|
||||
|
||||
OPTFLAGS = -Os -fomit-frame-pointer
|
||||
BITSIZE = 64
|
||||
|
|
@ -0,0 +1,10 @@
|
|||
# -*- makefile -*-
|
||||
#
|
||||
# arch/ppc64/Makefile.inc
|
||||
#
|
||||
# Special rules for this architecture. Note that this is actually
|
||||
# included from the main Makefile, and that pathnames should be
|
||||
# accordingly.
|
||||
#
|
||||
|
||||
archclean:
|
||||
|
|
@ -0,0 +1,38 @@
|
|||
#
|
||||
# arch/ppc64/crt0.S
|
||||
#
|
||||
# void _start(void)
|
||||
# {
|
||||
# /* Divine up argc, argv, and envp */
|
||||
# environ = envp;
|
||||
# exit(main(argc, argv, envp));
|
||||
# }
|
||||
#
|
||||
|
||||
.section ".toc","aw"
|
||||
.LC0: .tc environ[TC],environ
|
||||
|
||||
.section ".opd","aw"
|
||||
.align 3
|
||||
.globl _start
|
||||
_start:
|
||||
.quad ._start
|
||||
.quad .TOC.@tocbase, 0
|
||||
|
||||
.text
|
||||
.globl ._start
|
||||
.type ._start,@function
|
||||
._start:
|
||||
ld 3,0(1)
|
||||
ld 4,8(1)
|
||||
ld 5,16(1)
|
||||
li 0,0
|
||||
stdu 0,-64(1)
|
||||
ld 9,.LC0@toc(2)
|
||||
std 5,0(9)
|
||||
bl .main
|
||||
nop
|
||||
bl .exit
|
||||
nop
|
||||
|
||||
.size _start,.-_start
|
||||
|
|
@ -0,0 +1,52 @@
|
|||
/*
|
||||
* arch/ppc64/include/klibc/archsys.h
|
||||
*
|
||||
* Architecture-specific syscall definitions
|
||||
*/
|
||||
|
||||
#ifndef _KLIBC_ARCHSYS_H
|
||||
#define _KLIBC_ARCHSYS_H
|
||||
|
||||
#ifndef _syscall6
|
||||
|
||||
#define _syscall6(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \
|
||||
type5,arg5,type6,arg6) \
|
||||
type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5,type6 arg6) \
|
||||
{ \
|
||||
unsigned long __sc_ret, __sc_err; \
|
||||
{ \
|
||||
register unsigned long __sc_0 __asm__ ("r0"); \
|
||||
register unsigned long __sc_3 __asm__ ("r3"); \
|
||||
register unsigned long __sc_4 __asm__ ("r4"); \
|
||||
register unsigned long __sc_5 __asm__ ("r5"); \
|
||||
register unsigned long __sc_6 __asm__ ("r6"); \
|
||||
register unsigned long __sc_7 __asm__ ("r7"); \
|
||||
register unsigned long __sc_8 __asm__ ("r8"); \
|
||||
\
|
||||
__sc_3 = (unsigned long) (arg1); \
|
||||
__sc_4 = (unsigned long) (arg2); \
|
||||
__sc_5 = (unsigned long) (arg3); \
|
||||
__sc_6 = (unsigned long) (arg4); \
|
||||
__sc_7 = (unsigned long) (arg5); \
|
||||
__sc_8 = (unsigned long) (arg6); \
|
||||
__sc_0 = __NR_##name; \
|
||||
__asm__ __volatile__ \
|
||||
("sc \n\t" \
|
||||
"mfcr %1 " \
|
||||
: "=&r" (__sc_3), "=&r" (__sc_0) \
|
||||
: "0" (__sc_3), "1" (__sc_0), \
|
||||
"r" (__sc_4), \
|
||||
"r" (__sc_5), \
|
||||
"r" (__sc_6), \
|
||||
"r" (__sc_7), \
|
||||
"r" (__sc_8) \
|
||||
: __syscall_clobbers); \
|
||||
__sc_ret = __sc_3; \
|
||||
__sc_err = __sc_0; \
|
||||
} \
|
||||
__syscall_return (type); \
|
||||
}
|
||||
|
||||
#endif /* _syscall6() missing */
|
||||
|
||||
#endif /* _KLIBC_ARCHSYS_H */
|
||||
|
|
@ -0,0 +1,13 @@
|
|||
# -*- makefile -*-
|
||||
#
|
||||
# arch/s390/MCONFIG
|
||||
#
|
||||
# Special rules for this architecture. Note that this is actually
|
||||
# included from the main Makefile, and that pathnames should be
|
||||
# accordingly.
|
||||
#
|
||||
|
||||
OPTFLAGS = -Os -fomit-frame-pointer
|
||||
BITSIZE = 32
|
||||
|
||||
SHAREDFLAGS = -Ttext 0x40000200
|
||||
|
|
@ -0,0 +1,16 @@
|
|||
# -*- makefile -*-
|
||||
#
|
||||
# arch/s390/Makefile.inc
|
||||
#
|
||||
# Special rules for this architecture. Note that this is actually
|
||||
# included from the main Makefile, and that pathnames should be
|
||||
# accordingly.
|
||||
#
|
||||
|
||||
ARCHOBJS = \
|
||||
arch/$(ARCH)/setjmp.o
|
||||
|
||||
ARCHSOOBJS = $(patsubst %.o,%.lo,$(ARCHOBJS))
|
||||
|
||||
|
||||
archclean:
|
||||
|
|
@ -0,0 +1,25 @@
|
|||
#
|
||||
# arch/s390/crt0.S
|
||||
#
|
||||
# Does arch-specific initialization and invokes __libc_init
|
||||
# with the appropriate arguments.
|
||||
#
|
||||
# See __static_init.c or __shared_init.c for the expected
|
||||
# arguments.
|
||||
#
|
||||
.text
|
||||
.align 4
|
||||
.type _start,@function
|
||||
.globl _start
|
||||
_start:
|
||||
lr %r2,%r15
|
||||
lhi %r3,0
|
||||
ahi %r15,-96
|
||||
bras %r1,.L0
|
||||
.L0:
|
||||
l %r1,.L1-.L0(%r1)
|
||||
br %r1
|
||||
.L1:
|
||||
.long __libc_init
|
||||
|
||||
.size _start,.-_start
|
||||
|
|
@ -0,0 +1,15 @@
|
|||
/*
|
||||
* arch/s390/include/klibc/archsetjmp.h
|
||||
*/
|
||||
|
||||
#ifndef _KLIBC_ARCHSETJMP_H
|
||||
#define _KLIBC_ARCHSETJMP_H
|
||||
|
||||
struct __jmp_buf {
|
||||
uint32_t __gregs[10]; /* general registers r6-r15 */
|
||||
uint64_t __fpregs[2]; /* fp registers f4 and f6 */
|
||||
};
|
||||
|
||||
typedef struct __jmp_buf jmp_buf[1];
|
||||
|
||||
#endif /* _SETJMP_H */
|
||||
|
|
@ -0,0 +1,41 @@
|
|||
/*
|
||||
* arch/s390/include/klibc/archsys.h
|
||||
*
|
||||
* Architecture-specific syscall definitions
|
||||
*/
|
||||
|
||||
#ifndef _KLIBC_ARCHSYS_H
|
||||
#define _KLIBC_ARCHSYS_H
|
||||
|
||||
/* S/390 only has five syscall parameters, and uses a structure for
|
||||
6-argument syscalls. */
|
||||
|
||||
#ifndef _syscall6
|
||||
|
||||
#define _syscall6(type,name,type1,arg1,type2,arg2,type3,arg3,\
|
||||
type4,arg4,type5,arg5,type6,arg6) \
|
||||
type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, \
|
||||
type5 arg5, type6 arg6) { \
|
||||
unsigned long __arg[6] = { \
|
||||
(unsigned long) arg1, \
|
||||
(unsigned long) arg2, \
|
||||
(unsigned long) arg3, \
|
||||
(unsigned long) arg4, \
|
||||
(unsigned long) arg5, \
|
||||
(unsigned long) arg6 \
|
||||
}; \
|
||||
register void *__argp asm("2") = &__arg; \
|
||||
long __res; \
|
||||
__asm__ __volatile__ ( \
|
||||
" svc %b1\n" \
|
||||
" lr %0,2" \
|
||||
: "=d" (__res) \
|
||||
: "i" (__NR_##name), \
|
||||
"d" (__argp) \
|
||||
: _svc_clobber); \
|
||||
__syscall_return(type, __res); \
|
||||
}
|
||||
|
||||
#endif /* _syscall6() missing */
|
||||
|
||||
#endif /* _KLIBC_ARCHSYS_H */
|
||||
|
|
@ -0,0 +1,32 @@
|
|||
#
|
||||
# arch/s390/setjmp.S
|
||||
#
|
||||
# setjmp/longjmp for the s390 architecture
|
||||
#
|
||||
|
||||
.text
|
||||
.align 4
|
||||
.globl setjmp
|
||||
.type setjmp, @function
|
||||
setjmp:
|
||||
stm %r6,%r15,0(%r2) # save all general registers
|
||||
std %f4,40(%r2) # save fp registers f4 and f6
|
||||
std %f6,48(%r2)
|
||||
lhi %r2,0 # return 0
|
||||
br %r14
|
||||
|
||||
.size setjmp,.-setjmp
|
||||
|
||||
.text
|
||||
.align 4
|
||||
.globl longjmp
|
||||
.type longjmp, @function
|
||||
longjmp:
|
||||
lr %r1,%r2 # jmp_buf
|
||||
lr %r2,%r3 # return value
|
||||
ld %f6,48(%r1) # restore all saved registers
|
||||
ld %f4,40(%r1)
|
||||
lm %r6,%r15,0(%r1)
|
||||
br %r14 # return to restored address
|
||||
|
||||
.size longjmp,.-longjmp
|
||||
|
|
@ -0,0 +1,13 @@
|
|||
# -*- makefile -*-
|
||||
#
|
||||
# arch/s390x/MCONFIG
|
||||
#
|
||||
# Special rules for this architecture. Note that this is actually
|
||||
# included from the main Makefile, and that pathnames should be
|
||||
# accordingly.
|
||||
#
|
||||
|
||||
OPTFLAGS = -Os -fomit-frame-pointer
|
||||
BITSIZE = 64
|
||||
|
||||
SHAREDFLAGS = -Ttext 0x40000200
|
||||
|
|
@ -0,0 +1,16 @@
|
|||
# -*- makefile -*-
|
||||
#
|
||||
# arch/s390x/Makefile.inc
|
||||
#
|
||||
# Special rules for this architecture. Note that this is actually
|
||||
# included from the main Makefile, and that pathnames should be
|
||||
# accordingly.
|
||||
#
|
||||
|
||||
ARCHOBJS = \
|
||||
arch/$(ARCH)/setjmp.o
|
||||
|
||||
ARCHSOOBJS = $(patsubst %.o,%.lo,$(ARCHOBJS))
|
||||
|
||||
|
||||
archclean:
|
||||
|
|
@ -0,0 +1,21 @@
|
|||
#
|
||||
# arch/s390/crt0.S
|
||||
#
|
||||
# Does arch-specific initialization and invokes __libc_init
|
||||
# with the appropriate arguments.
|
||||
#
|
||||
# See __static_init.c or __shared_init.c for the expected
|
||||
# arguments.
|
||||
#
|
||||
|
||||
.text
|
||||
.align 4
|
||||
.type _start,@function
|
||||
.globl _start
|
||||
_start:
|
||||
lgr %r2,%r15
|
||||
lghi %r3,0
|
||||
aghi %r15,-160
|
||||
jg __libc_init
|
||||
|
||||
.size _start,.-_start
|
||||
|
|
@ -0,0 +1,15 @@
|
|||
/*
|
||||
* arch/s390x/include/klibc/archsetjmp.h
|
||||
*/
|
||||
|
||||
#ifndef _KLIBC_ARCHSETJMP_H
|
||||
#define _KLIBC_ARCHSETJMP_H
|
||||
|
||||
struct __jmp_buf {
|
||||
uint64_t __gregs[10]; /* general registers r6-r15 */
|
||||
uint64_t __fpregs[4]; /* fp registers f1, f3, f5, f7 */
|
||||
};
|
||||
|
||||
typedef struct __jmp_buf jmp_buf[1];
|
||||
|
||||
#endif /* _SETJMP_H */
|
||||
|
|
@ -0,0 +1,41 @@
|
|||
/*
|
||||
* arch/s390x/include/klibc/archsys.h
|
||||
*
|
||||
* Architecture-specific syscall definitions
|
||||
*/
|
||||
|
||||
#ifndef _KLIBC_ARCHSYS_H
|
||||
#define _KLIBC_ARCHSYS_H
|
||||
|
||||
/* S/390X only has five syscall parameters, and uses a structure for
|
||||
6-argument syscalls. */
|
||||
|
||||
#ifndef _syscall6
|
||||
|
||||
#define _syscall6(type,name,type1,arg1,type2,arg2,type3,arg3,\
|
||||
type4,arg4,type5,arg5,type6,arg6) \
|
||||
type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, \
|
||||
type5 arg5, type6 arg6) { \
|
||||
unsigned long __arg[6] = { \
|
||||
(unsigned long) arg1, \
|
||||
(unsigned long) arg2, \
|
||||
(unsigned long) arg3, \
|
||||
(unsigned long) arg4, \
|
||||
(unsigned long) arg5, \
|
||||
(unsigned long) arg6 \
|
||||
}; \
|
||||
register void *__argp asm("2") = &__arg; \
|
||||
long __res; \
|
||||
__asm__ __volatile__ ( \
|
||||
" svc %b1\n" \
|
||||
" lgr %0,2" \
|
||||
: "=d" (__res) \
|
||||
: "i" (__NR_##name), \
|
||||
"d" (__argp) \
|
||||
: _svc_clobber); \
|
||||
__syscall_return(type, __res); \
|
||||
}
|
||||
|
||||
#endif /* _syscall6() missing */
|
||||
|
||||
#endif /* _KLIBC_ARCHSYS_H */
|
||||
|
|
@ -0,0 +1,36 @@
|
|||
#
|
||||
# arch/s390x/setjmp.S
|
||||
#
|
||||
# setjmp/longjmp for the s390x architecture
|
||||
#
|
||||
|
||||
.text
|
||||
.align 4
|
||||
.globl setjmp
|
||||
.type setjmp, @function
|
||||
setjmp:
|
||||
stmg %r6,%r15,0(%r2) # save all general registers
|
||||
std %f1,80(%r2) # save fp registers f4 and f6
|
||||
std %f3,88(%r2)
|
||||
std %f5,96(%r2)
|
||||
std %f7,104(%r2)
|
||||
lghi %r2,0 # return 0
|
||||
br %r14
|
||||
|
||||
.size setjmp,.-setjmp
|
||||
|
||||
.text
|
||||
.align 4
|
||||
.globl longjmp
|
||||
.type longjmp, @function
|
||||
longjmp:
|
||||
lgr %r1,%r2 # jmp_buf
|
||||
lgr %r2,%r3 # return value
|
||||
ld %f7,104(%r1) # restore all saved registers
|
||||
ld %f5,96(%r1)
|
||||
ld %f3,88(%r1)
|
||||
ld %f1,80(%r1)
|
||||
lmg %r6,%r15,0(%r1)
|
||||
br %r14 # return to restored address
|
||||
|
||||
.size longjmp,.-longjmp
|
||||
|
|
@ -0,0 +1,19 @@
|
|||
# -*- makefile -*-
|
||||
#
|
||||
# arch/sh/MCONFIG
|
||||
#
|
||||
# Special rules for this architecture. Note that this is actually
|
||||
# included from the main Makefile, and that pathnames should be
|
||||
# accordingly.
|
||||
#
|
||||
|
||||
ARCHREGFLAGS = -m4 -mno-implicit-fp
|
||||
OPTFLAGS = -Os -fomit-frame-pointer
|
||||
BITSIZE = 32
|
||||
|
||||
# Extra linkflags when building the shared version of the library
|
||||
# This address needs to be reachable using normal inter-module
|
||||
# calls, and work on the memory models for this architecture
|
||||
# 2 MB -- the normal starting point for text is 4 MB.
|
||||
SHAREDFLAGS = -Ttext 0x00200200
|
||||
|
||||
|
|
@ -0,0 +1,14 @@
|
|||
# -*- makefile -*-
|
||||
#
|
||||
# arch/sh/Makefile.inc
|
||||
#
|
||||
# Special rules for this architecture. Note that this is actually
|
||||
# included from the main Makefile, and that pathnames should be
|
||||
# accordingly.
|
||||
#
|
||||
|
||||
ARCHOBJS = arch/sh/setjmp.o
|
||||
|
||||
ARCHSOOBJS = $(patsubst %.o,%.lo,$(ARCHOBJS))
|
||||
|
||||
archclean:
|
||||
|
|
@ -0,0 +1,28 @@
|
|||
#
|
||||
# arch/sh/crt0.S
|
||||
#
|
||||
# void _start(void)
|
||||
# {
|
||||
# /* Divine up argc, argv, and envp */
|
||||
# environ = envp;
|
||||
# exit(main(argc, argv, envp));
|
||||
# }
|
||||
#
|
||||
|
||||
.text
|
||||
.align 2
|
||||
.type _start,#function
|
||||
.globl _start
|
||||
|
||||
_start:
|
||||
mov r15, r4
|
||||
mov #0, r5
|
||||
mov.l 1f, r0
|
||||
|
||||
jsr @r0
|
||||
nop
|
||||
|
||||
.align 2
|
||||
1: .long __libc_init
|
||||
|
||||
.size _start,.-_start
|
||||
|
|
@ -0,0 +1,22 @@
|
|||
/*
|
||||
* arch/sh/include/klibc/archsetjmp.h
|
||||
*/
|
||||
|
||||
#ifndef _KLIBC_ARCHSETJMP_H
|
||||
#define _KLIBC_ARCHSETJMP_H
|
||||
|
||||
struct __jmp_buf {
|
||||
unsigned long r8;
|
||||
unsigned long r9;
|
||||
unsigned long r10;
|
||||
unsigned long r11;
|
||||
unsigned long r12;
|
||||
unsigned long r13;
|
||||
unsigned long r14;
|
||||
unsigned long r15;
|
||||
unsigned long pr;
|
||||
};
|
||||
|
||||
typedef struct __jmp_buf jmp_buf[1];
|
||||
|
||||
#endif /* _KLIBC_ARCHSETJMP_H */
|
||||
|
|
@ -0,0 +1,12 @@
|
|||
/*
|
||||
* arch/sh/include/klibc/archsys.h
|
||||
*
|
||||
* Architecture-specific syscall definitions
|
||||
*/
|
||||
|
||||
#ifndef _KLIBC_ARCHSYS_H
|
||||
#define _KLIBC_ARCHSYS_H
|
||||
|
||||
/* No special syscall definitions for this architecture */
|
||||
|
||||
#endif /* _KLIBC_ARCHSYS_H */
|
||||
|
|
@ -0,0 +1,65 @@
|
|||
#
|
||||
# arch/sh/setjmp.S
|
||||
#
|
||||
# setjmp/longjmp for the SuperH architecture
|
||||
#
|
||||
|
||||
#
|
||||
# The jmp_buf is assumed to contain the following, in order:
|
||||
#
|
||||
# r8
|
||||
# r9
|
||||
# r10
|
||||
# r11
|
||||
# r12
|
||||
# r13
|
||||
# r14
|
||||
# r15
|
||||
# pr
|
||||
#
|
||||
|
||||
.text
|
||||
.align 2
|
||||
|
||||
.globl setjmp
|
||||
.type setjmp, #function
|
||||
|
||||
setjmp:
|
||||
add #(9*4), r4
|
||||
sts.l pr, @-r4
|
||||
mov.l r15, @-r4
|
||||
mov.l r14, @-r4
|
||||
mov.l r13, @-r4
|
||||
mov.l r12, @-r4
|
||||
mov.l r11, @-r4
|
||||
mov.l r10, @-r4
|
||||
mov.l r9, @-r4
|
||||
mov.l r8, @-r4
|
||||
rts
|
||||
mov #0, r0
|
||||
|
||||
.size setjmp,.-setjmp
|
||||
|
||||
.align 2
|
||||
.globl longjmp
|
||||
.type setjmp, #function
|
||||
|
||||
longjmp:
|
||||
mov.l @r4+, r8
|
||||
mov.l @r4+, r9
|
||||
mov.l @r4+, r10
|
||||
mov.l @r4+, r11
|
||||
mov.l @r4+, r12
|
||||
mov.l @r4+, r13
|
||||
mov.l @r4+, r14
|
||||
mov.l @r4+, r15
|
||||
lds.l @r4+, pr
|
||||
mov r5, r0
|
||||
tst r0, r0
|
||||
bf 1f
|
||||
mov #1, r0 ! in case val==0
|
||||
1: rts
|
||||
nop
|
||||
|
||||
.size longjmp,.-longjmp
|
||||
|
||||
Some files were not shown because too many files have changed in this diff Show More
Loading…
Reference in New Issue