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Carl Shapiro
cmucl
Commits
d3836195
Commit
d3836195
authored
17 years ago
by
fgilham
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Add linker script for building Lisp executables.
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d3836195
#!/bin/sh -x
# $Id: linker.sh,v 1.1 2007/07/07 16:00:49 fgilham Exp $
# This file was written by Fred Gilham and is placed in the public domain.
# It comes without warranty of any kind.
if
[
$#
-ne
2
]
then
echo
"Usage:
`
basename
$0
`
<initial function address> <executable file>"
exit
1
fi
OPSYS
=
`
uname
`
VER
=
""
# Set OS-specific variables. Things marked XXXX can possibly change
# with different operationg systems, different distributions (Linux)
# or different releases (FreeBSD).
case
"
$OPSYS
"
in
Linux
)
# XXXX This can change depending on any number of things....
LIBROOT
=
/usr/lib/gcc-lib/i386-redhat-linux/2.96
DLINKER
=
"-dynamic-linker /lib/ld-linux.so.2"
STARTCRT
=
"
$LIBROOT
/../../../crt1.o
$LIBROOT
/../../../crti.o
$LIBROOT
/crtbegin.o"
ENDCRT
=
"
$LIBROOT
/crtend.o
$LIBROOT
/../../../crtn.o"
LIBS
=
"-L
$LIBROOT
-ldl -lm -lgcc -lc -lgcc"
;;
FreeBSD
)
# XXXX I guess we have to just keep adding to this.
# XXXXX Maybe not. Seems like there's more compatibility than I
# thought between binary versions.
RELEASE
=
`
uname
-r
`
# case $RELEASE in
# 4* ) VER=4 ;;
# 5* ) VER=5 ;;
# * ) echo "$0: unknown FreeBSD version $RELEASE" ; exit 1 ;;
# esac
LIBROOT
=
/usr/lib
DLINKER
=
"-dynamic-linker /usr/libexec/ld-elf.so.1"
STARTCRT
=
"
$LIBROOT
/crt1.o
$LIBROOT
/crti.o
$LIBROOT
/crtbegin.o"
ENDCRT
=
"
$LIBROOT
/crtend.o
$LIBROOT
/crtn.o"
LIBS
=
"-lm -lgcc -lc -lgcc"
;;
*
)
echo
"
$0
: unknown operating system
$OPSYS
."
exit
1
;;
esac
OUTPUT
=
"-o
$2
"
LINKER
=
/usr/bin/ld
CMUCLLIB
=
`
dirname
$0
`
OBJS
=
"--whole-archive
$CMUCLLIB
/lisp.a --no-whole-archive"
FLAGS
=
"-export-dynamic"
# XXXX The linker script is a nasty portability issue.
SCRIPT
=
"-T
$CMUCLLIB
/
$OPSYS$VER
-cmucl-linker-script"
# BIFLAG flags the executable as having a builtin lisp image. It
# should be a valid address because it will be dereferenced. It
# should also not point to an integer 0. We use the first address in
# the process memory image, which should point to the ELF header.
# XXXX The process image start address can change depending on the OS
# (at least).
BIFLAG
=
"--defsym builtin_image_flag=0x08048000"
# IFADDR is the initial function address, needed to start lisp processing.
IFADDR
=
"--defsym initial_function_addr=
$1
"
$LINKER
$SCRIPT
$DLINKER
$OUTPUT
$STARTCRT
$FLAGS
$BIFLAG
$IFADDR
$OBJS
$LIBS
$ENDCRT
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