2 # genscripts.sh - generate the ld-emulation-target specific files
4 # Usage: genscripts.sh srcdir libdir exec_prefix \
5 # host target target_alias default_emulation \
6 # native_lib_dirs this_emulation tool_dir
9 # genscripts.sh /djm/ld-devo/devo/ld /usr/local/lib /usr/local \
10 # sparc-sun-sunos4.1.3 sparc-sun-sunos4.1.3 sparc-sun-sunos4.1.3 sun4 \
11 # "" sun3 sparc-sun-sunos4.1.3
12 # produces sun3.x sun3.xbn sun3.xn sun3.xr sun3.xu em_sun3.c
24 # Can't use ${1:-$target_alias} here due to an Ultrix shell bug.
25 if [ "x$1" = "x" ] ; then
26 tool_lib=${exec_prefix}/${target_alias}/lib
28 tool_lib=${exec_prefix}/$1/lib
31 # Include the emulation-specific parameters:
32 . ${srcdir}/emulparams/${EMULATION_NAME}.sh
34 if test -d ldscripts; then
40 # Set the library search path, for libraries named by -lfoo.
41 # If LIB_PATH is defined (e.g., by Makefile) and non-empty, it is used.
42 # Otherwise, the default is set here.
44 # The format is the usual list of colon-separated directories.
45 # To force a logically empty LIB_PATH, do LIBPATH=":".
47 if [ "x${LIB_PATH}" = "x" ] ; then
48 # Cross, or native non-default emulation not requesting LIB_PATH.
51 if [ "x${host}" = "x${target}" ] ; then
52 case " $EMULATION_LIBPATH " in
53 *" ${EMULATION_NAME} "*)
54 # Native, and default or emulation requesting LIB_PATH.
55 LIB_PATH=/lib:/usr/lib
56 if [ -n "${NATIVE_LIB_DIRS}" ]; then
57 LIB_PATH=${LIB_PATH}:${NATIVE_LIB_DIRS}
59 if [ "${libdir}" != /usr/lib ]; then
60 LIB_PATH=${LIB_PATH}:${libdir}
62 if [ "${libdir}" != /usr/local/lib ] ; then
63 LIB_PATH=${LIB_PATH}:/usr/local/lib
69 # Always search $(tooldir)/lib, aka /usr/local/TARGET/lib.
70 LIB_PATH=${LIB_PATH}:${tool_lib}
72 LIB_SEARCH_DIRS=`echo ${LIB_PATH} | tr ':' ' ' | sed -e 's/\([^ ][^ ]*\)/SEARCH_DIR(\1);/g'`
74 # Generate 5 or 6 script files from a master script template in
75 # ${srcdir}/scripttempl/${SCRIPT_NAME}.sh. Which one of the 5 or 6
76 # script files is actually used depends on command line options given
77 # to ld. (SCRIPT_NAME was set in the emulparams_file.)
79 # A .x script file is the default script.
80 # A .xr script is for linking without relocation (-r flag).
81 # A .xu script is like .xr, but *do* create constructors (-Ur flag).
82 # A .xn script is for linking with -n flag (mix text and data on same page).
83 # A .xbn script is for linking with -N flag (mix text and data on same page).
84 # A .xs script is for generating a shared library with the --shared
85 # flag; it is only generated if $GENERATE_SHLIB_SCRIPT is set by the
86 # emulation parameters.
87 # A .xc script is for linking with -z combreloc; it is only generated if
88 # $GENERATE_COMBRELOC_SCRIPT is set by the emulation parameters or
89 # $SCRIPT_NAME is "elf".
90 # A .xsc script is for linking with --shared -z combreloc; it is generated
91 # if $GENERATE_COMBRELOC_SCRIPT is set by the emulation parameters or
92 # $SCRIPT_NAME is "elf" and $GENERATE_SHLIB_SCRIPT is set by the emulation
95 if [ "x$SCRIPT_NAME" = "xelf" ]; then
96 GENERATE_COMBRELOC_SCRIPT=yes
99 SEGMENT_SIZE=${SEGMENT_SIZE-${TARGET_PAGE_SIZE}}
101 # Determine DATA_ALIGNMENT for the 5 variants, using
102 # values specified in the emulparams/<emulation>.sh file or default.
104 DATA_ALIGNMENT_="${DATA_ALIGNMENT_-${DATA_ALIGNMENT-ALIGN(${SEGMENT_SIZE})}}"
105 DATA_ALIGNMENT_n="${DATA_ALIGNMENT_n-${DATA_ALIGNMENT_}}"
106 DATA_ALIGNMENT_N="${DATA_ALIGNMENT_N-${DATA_ALIGNMENT-.}}"
107 DATA_ALIGNMENT_r="${DATA_ALIGNMENT_r-${DATA_ALIGNMENT-}}"
108 DATA_ALIGNMENT_u="${DATA_ALIGNMENT_u-${DATA_ALIGNMENT_r}}"
111 DATA_ALIGNMENT=${DATA_ALIGNMENT_r}
112 DEFAULT_DATA_ALIGNMENT="ALIGN(${SEGMENT_SIZE})"
113 ( . ${srcdir}/emulparams/${EMULATION_NAME}.sh
114 . ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
115 ) | sed -e '/^ *$/d;s/[ ]*$//' > ldscripts/${EMULATION_NAME}.xr
118 DATA_ALIGNMENT=${DATA_ALIGNMENT_u}
120 ( . ${srcdir}/emulparams/${EMULATION_NAME}.sh
121 . ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
122 ) | sed -e '/^ *$/d;s/[ ]*$//' > ldscripts/${EMULATION_NAME}.xu
125 DATA_ALIGNMENT=${DATA_ALIGNMENT_}
127 ( . ${srcdir}/emulparams/${EMULATION_NAME}.sh
128 . ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
129 ) | sed -e '/^ *$/d;s/[ ]*$//' > ldscripts/${EMULATION_NAME}.x
132 DATA_ALIGNMENT=${DATA_ALIGNMENT_n}
133 TEXT_START_ADDR=${NONPAGED_TEXT_START_ADDR-${TEXT_START_ADDR}}
134 ( . ${srcdir}/emulparams/${EMULATION_NAME}.sh
135 . ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
136 ) | sed -e '/^ *$/d;s/[ ]*$//' > ldscripts/${EMULATION_NAME}.xn
139 DATA_ALIGNMENT=${DATA_ALIGNMENT_N}
140 ( . ${srcdir}/emulparams/${EMULATION_NAME}.sh
141 . ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
142 ) | sed -e '/^ *$/d;s/[ ]*$//' > ldscripts/${EMULATION_NAME}.xbn
144 if test -n "$GENERATE_COMBRELOC_SCRIPT"; then
145 DATA_ALIGNMENT=${DATA_ALIGNMENT_c-${DATA_ALIGNMENT_}}
147 COMBRELOC=ldscripts/${EMULATION_NAME}.xc.tmp
148 ( . ${srcdir}/emulparams/${EMULATION_NAME}.sh
149 . ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
150 ) | sed -e '/^ *$/d;s/[ ]*$//' > ldscripts/${EMULATION_NAME}.xc
155 if test -n "$GENERATE_SHLIB_SCRIPT"; then
157 DATA_ALIGNMENT=${DATA_ALIGNMENT_s-${DATA_ALIGNMENT_}}
159 # Note that TEXT_START_ADDR is set to NONPAGED_TEXT_START_ADDR.
160 ( . ${srcdir}/emulparams/${EMULATION_NAME}.sh
161 . ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
162 ) | sed -e '/^ *$/d;s/[ ]*$//' > ldscripts/${EMULATION_NAME}.xs
163 if test -n "$GENERATE_COMBRELOC_SCRIPT"; then
165 DATA_ALIGNMENT=${DATA_ALIGNMENT_sc-${DATA_ALIGNMENT}}
166 COMBRELOC=ldscripts/${EMULATION_NAME}.xc.tmp
167 ( . ${srcdir}/emulparams/${EMULATION_NAME}.sh
168 . ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
169 ) | sed -e '/^ *$/d;s/[ ]*$//' > ldscripts/${EMULATION_NAME}.xsc
175 for i in $EMULATION_LIBPATH ; do
176 test "$i" = "$EMULATION_NAME" && COMPILE_IN=true
179 # Generate e${EMULATION_NAME}.c.
180 . ${srcdir}/emultempl/${TEMPLATE_NAME-generic}.em