debug.d: extracted-errno.h extracted-mfield.h extracted-mtype.h
-CLEANFILES+=extracted-errno.h extracted-mfield.h extracted-mtype.h
+CLEANFILES+=extracted-errno.h extracted-mfield.h extracted-mtype.h procoffsets.h
extracted-errno.h: extract-errno.sh ../include/errno.h
${_MKTARGET_CREATE}
# Makefile for arch-dependent kernel code
.include <bsd.own.mk>
-.PATH: ${.CURDIR}/arch/${ARCH}
+HERE=${.CURDIR}/arch/${ARCH}
+.PATH: ${HERE}
SRCS+= arch_do_vmctl.c \
arch_clock.c \
do_int86.c \
arch_system.c \
pre_init.c
+apic_asm.d klib.d mpx.d: procoffsets.h
+
+# It's OK to hardcode the arch as i386 here as this and procoffsets.cf
+# are i386-specific.
+TMP=procoffsets.h.tmp
+INCLS=../include/arch/i386/include/
+PROCOFFSETSCF=procoffsets.cf
+
+procoffsets.h: $(PROCOFFSETSCF) kernel.h proc.h $(INCLS)/stackframe.h $(INCLS)/archtypes.h
+ ${_MKTARGET_CREATE}
+ cat ${HERE}/$(PROCOFFSETSCF) | \
+ ${TOOL_GENASSYM} -- ${CC} ${CFLAGS} ${CPPFLAGS} ${PROF} >$TMP && \
+ mv -f $TMP $@
+
.ifdef CONFIG_SMP
SRCS += arch_smp.c trampoline.S
.endif
--- /dev/null
+
+include "kernel.h"
+include "proc.h"
+
+struct proc
+member GSREG p_reg.gs
+member FSREG p_reg.fs
+member ESREG p_reg.es
+member DSREG p_reg.ds
+member DIREG p_reg.di
+member SIREG p_reg.si
+member BPREG p_reg.fp
+member STREG p_reg.st
+member BXREG p_reg.bx
+member DXREG p_reg.dx
+member CXREG p_reg.cx
+member AXREG p_reg.retreg
+member RETADR p_reg.retadr
+member PCREG p_reg.pc
+member CSREG p_reg.cs
+member PSWREG p_reg.psw
+member SPREG p_reg.sp
+member SSREG p_reg.ss
+member FP_SAVE_AREA_P p_fpu_state
+member P_LDT_SEL p_seg.p_ldt_sel
+member P_CR3 p_seg.p_cr3
+member P_CR3_V p_seg.p_cr3_v
+member P_LDT p_seg.p_ldt
+
#define __SCONST_H__
#include "kernel/const.h"
-
-/* Miscellaneous constants used in assembler code. */
- W = _WORD_SIZE /* Machine word size. */
-
-/* Offsets in struct proc. They MUST match proc.h. */
- P_STACKBASE = 0
- GSREG = P_STACKBASE
- FSREG = GSREG+2 /* 386 introduces FS and GS segments*/
- ESREG = FSREG+2
- DSREG = ESREG+2
- DIREG = DSREG+2
- SIREG = DIREG+W
- BPREG = SIREG+W
- STREG = BPREG+W /* hole for another SP*/
- BXREG = STREG+W
- DXREG = BXREG+W
- CXREG = DXREG+W
- AXREG = CXREG+W
- RETADR = AXREG+W /* return address for save() call*/
- PCREG = RETADR+W
- CSREG = PCREG+W
- PSWREG = CSREG+W
- SPREG = PSWREG+W
- SSREG = SPREG+W
- P_STACKTOP = SSREG+W
- FP_SAVE_AREA_P = P_STACKTOP
- P_LDT_SEL = FP_SAVE_AREA_P + 532
- P_CR3 = P_LDT_SEL+W
- P_CR3_V = P_CR3+4
- P_LDT = P_CR3_V+W
- P_MISC_FLAGS = P_LDT + 50
- Msize = 9 /* size of a message in 32-bit words*/
-
+#include "kernel/procoffsets.h"
/*
* offset to current process pointer right after trap, we assume we always have
# Timestamp in UTC,minixpath,netbsdpath
# minixpath: path in Minix source tree (starting from /usr/src/)
# netbsdpath: path in BSD source tree (starting from src/)
+2011/01/17 18:11:10,usr.bin/genassym
2012/02/10 16:16:12,usr.bin/su
2011/12/25 06:09:09,sys/arch/i386/stand
2012/02/10 16:16:12,share/zoneinfo
# NetBSD imports
SUBDIR= indent m4 stat tic sed mkdep uniq seq du man \
- apropos chpass newgrp passwd bzip2 bzip2recover gzip su
+ apropos chpass newgrp passwd bzip2 bzip2recover gzip su genassym
# Non-NetBSD imports
SUBDIR+= ministat
--- /dev/null
+# $NetBSD: Makefile,v 1.1 2005/06/05 18:19:54 thorpej Exp $
+
+MAN= genassym.1
+SCRIPTS= genassym.sh
+
+.include <bsd.prog.mk>
--- /dev/null
+.\" $NetBSD: genassym.1,v 1.5 2010/04/13 09:01:10 jruoho Exp $
+.\"
+.\" Copyright (c) 1997 Matthias Pfaller.
+.\" 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.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
+.\"
+.Dd April 13, 2010
+.Dt GENASSYM 1
+.Os
+.Sh NAME
+.Nm genassym
+.Nd emit an assym.h file
+.Sh SYNOPSIS
+.Nm genassym
+.Op Fl c
+.Op Fl f
+.Ar C compiler invocation
+.Sh DESCRIPTION
+.Nm
+is a shell script normally used during the kernel build process to
+create an assym.h file.
+This file defines a number of cpp constants derived from the configuration
+information
+.Nm
+reads from stdin. The generated file is used by kernel sources
+written in assembler to gain access to information (e.g. structure
+offsets and sizes) normally only known to the C compiler.
+.Pp
+Arguments to
+.Nm
+are usually of the form
+.Ar ${CC} ${CFLAGS} ${CPPFLAGS}
+where
+.Ar ${CC}
+is the C compiler used to compile the kernel, while
+.Ar ${CFLAGS}
+and
+.Ar ${CPPFLAGS}
+are flag arguments to the C compiler. The script creates a C source file
+from its input. Then the C compiler is called according to the script's
+arguments to compile this file.
+.Pp
+Normally
+.Nm
+instructs the C compiler to create an assembler source from the constructed
+C source. The resulting file is then processed to extract the information
+needed to create the assym.h file. The
+.Fl c
+flag instructs
+.Nm
+to create slightly different code, generate an executable from this code
+and run it. In both cases the assym.h file is written to stdout.
+The
+.Fl f
+flag instructs
+.Nm
+to create forth code.
+.Sh DIAGNOSTICS
+Either self-explanatory, or generated by one of the programs
+called from the script.
+.Sh SEE ALSO
+.Xr genassym.cf 5
+.Sh HISTORY
+The
+.Nm
+command appeared in
+.Nx 1.3
+as
+.Dq genassym.sh
+in
+.Pa /usr/src/sys/kern .
+It became a userland utility in
+.Nx 4.0 .
--- /dev/null
+#!/bin/sh -
+# $NetBSD: genassym.sh,v 1.6 2009/11/28 20:30:01 dsl Exp $
+#
+# Copyright (c) 1997 Matthias Pfaller.
+# 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.
+#
+# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
+#
+
+progname=${0}
+: ${AWK:=awk}
+
+ccode=0 # generate temporary C file, compile it, execute result
+fcode=0 # generate Forth code
+
+usage()
+{
+
+ echo "usage: ${progname} [-c | -f] -- compiler command" >&2
+}
+
+while getopts cf i
+do
+ case "$i" in
+ c)
+ ccode=1
+ ;;
+ f)
+ fcode=1
+ ;;
+ esac
+done
+shift $(($OPTIND - 1))
+if [ $# -eq 0 ]; then
+ usage
+ exit 1
+fi
+
+# Deal with any leading environment settings..
+
+while [ "$1" ]
+do
+ case "$1" in
+ *=*)
+ eval export "$1"
+ shift
+ ;;
+ *)
+ break
+ ;;
+ esac
+done
+
+genassym_temp=/tmp/genassym.$$
+
+if ! mkdir $genassym_temp; then
+ echo "${progname}: unable to create temporary directory" >&2
+ exit 1
+fi
+trap "rm -rf $genassym_temp" 0 1 2 3 15
+
+$AWK '
+BEGIN {
+ printf("#define offsetof(type, member) ((size_t)(&((type *)0)->member))\n");
+ defining = 0;
+ type = "long";
+ asmtype = "n";
+ asmprint = "";
+}
+
+{
+ doing_member = 0;
+}
+
+$0 ~ /^[ \t]*#.*/ || $0 ~ /^[ \t]*$/ {
+ # Just ignore comments and empty lines
+ next;
+}
+
+$0 ~ /^config[ \t]/ {
+ type = $2;
+ asmtype = $3;
+ asmprint = $4;
+ next;
+}
+
+/^include[ \t]/ {
+ if (defining != 0) {
+ defining = 0;
+ printf("}\n");
+ }
+ printf("#%s\n", $0);
+ next;
+}
+
+$0 ~ /^if[ \t]/ ||
+$0 ~ /^ifdef[ \t]/ ||
+$0 ~ /^ifndef[ \t]/ ||
+$0 ~ /^else/ ||
+$0 ~ /^elif[ \t]/ ||
+$0 ~ /^endif/ {
+ printf("#%s\n", $0);
+ next;
+}
+
+/^struct[ \t]/ {
+ structname = $2;
+ $0 = "define " structname "_SIZEOF sizeof(struct " structname ")";
+ # fall through
+}
+
+/^member[ \t]/ {
+ if (NF > 2)
+ $0 = "define " $2 " offsetof(struct " structname ", " $3 ")";
+ else
+ $0 = "define " $2 " offsetof(struct " structname ", " $2 ")";
+ doing_member = 1;
+ # fall through
+}
+
+/^export[ \t]/ {
+ $0 = "define " $2 " " $2;
+ # fall through
+}
+
+/^define[ \t]/ {
+ if (defining == 0) {
+ defining = 1;
+ printf("void f" FNR "(void);\n");
+ printf("void f" FNR "(void) {\n");
+ if (ccode)
+ call[FNR] = "f" FNR;
+ defining = 1;
+ }
+ value = $0
+ gsub("^define[ \t]+[A-Za-z_][A-Za-z_0-9]*[ \t]+", "", value)
+ if (ccode)
+ printf("printf(\"#define " $2 " %%ld\\n\", (%s)" value ");\n", type);
+ else if (fcode) {
+ if (doing_member)
+ printf("__asm(\"XYZZY : %s d# %%%s0 + ;\" : : \"%s\" (%s));\n", $2, asmprint, asmtype, value);
+ else
+ printf("__asm(\"XYZZY d# %%%s0 constant %s\" : : \"%s\" (%s));\n", asmprint, $2, asmtype, value);
+ } else
+ printf("__asm(\"XYZZY %s %%%s0\" : : \"%s\" (%s));\n", $2, asmprint, asmtype, value);
+ next;
+}
+
+/^quote[ \t]/ {
+ gsub("^quote[ \t]+", "");
+ print;
+ next;
+}
+
+{
+ printf("syntax error in line %d\n", FNR) >"/dev/stderr";
+ exit(1);
+}
+
+END {
+ if (defining != 0) {
+ defining = 0;
+ printf("}\n");
+ }
+ if (ccode) {
+ printf("int main(int argc, char **argv) {");
+ for (i in call)
+ printf(call[i] "();");
+ printf("return(0); }\n");
+ }
+}
+' ccode=$ccode fcode=$fcode > ${genassym_temp}/assym.c || exit 1
+
+if [ $ccode = 1 ] ; then
+ "$@" ${genassym_temp}/assym.c -o ${genassym_temp}/genassym && \
+ ${genassym_temp}/genassym
+elif [ $fcode = 1 ]; then
+ # Kill all of the "#" and "$" modifiers; locore.s already
+ # prepends the correct "constant" modifier.
+ "$@" -S ${genassym_temp}/assym.c -o - | sed -e 's/\$//g' | \
+ sed -n 's/.*XYZZY//gp'
+else
+ # Kill all of the "#" and "$" modifiers; locore.s already
+ # prepends the correct "constant" modifier.
+ "$@" -S ${genassym_temp}/assym.c -o - > \
+ ${genassym_temp}/genassym.out && \
+ sed -e 's/#//g' -e 's/\$//g' < ${genassym_temp}/genassym.out | \
+ sed -n 's/.*XYZZY/#define/gp'
+fi
