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252b5132 RH |
1 | #!/bin/sh |
2 | # genscripts.sh - generate the ld-emulation-target specific files | |
3 | # | |
4 | # Usage: genscripts.sh srcdir libdir host target target_alias \ | |
5 | # default_emulation native_lib_dirs this_emulation tool_dir | |
6 | # | |
7 | # Sample usage: | |
8 | # genscripts.sh /djm/ld-devo/devo/ld /usr/local/lib sparc-sun-sunos4.1.3 \ | |
9 | # sparc-sun-sunos4.1.3 sparc-sun-sunos4.1.3 sun4 "" sun3 sparc-sun-sunos4.1.3 | |
10 | # produces sun3.x sun3.xbn sun3.xn sun3.xr sun3.xu em_sun3.c | |
11 | ||
12 | srcdir=$1 | |
13 | libdir=$2 | |
14 | host=$3 | |
15 | target=$4 | |
16 | target_alias=$5 | |
3336653a | 17 | EMULATION_LIBPATH=$6 |
252b5132 RH |
18 | NATIVE_LIB_DIRS=$7 |
19 | EMULATION_NAME=$8 | |
20 | tool_lib=`echo ${libdir} | sed -e 's|/lib$||'`/${9-$target_alias}/lib | |
21 | ||
22 | # Include the emulation-specific parameters: | |
23 | . ${srcdir}/emulparams/${EMULATION_NAME}.sh | |
24 | ||
25 | if test -d ldscripts; then | |
26 | true | |
27 | else | |
28 | mkdir ldscripts | |
29 | fi | |
30 | ||
31 | # Set the library search path, for libraries named by -lfoo. | |
32 | # If LIB_PATH is defined (e.g., by Makefile) and non-empty, it is used. | |
33 | # Otherwise, the default is set here. | |
34 | # | |
35 | # The format is the usual list of colon-separated directories. | |
36 | # To force a logically empty LIB_PATH, do LIBPATH=":". | |
37 | ||
38 | if [ "x${LIB_PATH}" = "x" ] ; then | |
3336653a RH |
39 | # Cross, or native non-default emulation not requesting LIB_PATH. |
40 | LIB_PATH= | |
41 | ||
252b5132 | 42 | if [ "x${host}" = "x${target}" ] ; then |
3336653a RH |
43 | case " $EMULATION_LIBPATH " in |
44 | *" ${EMULATION_NAME} "*) | |
45 | # Native, and default or emulation requesting LIB_PATH. | |
46 | LIB_PATH=/lib:/usr/lib | |
47 | if [ -n "${NATIVE_LIB_DIRS}" ]; then | |
48 | LIB_PATH=${LIB_PATH}:${NATIVE_LIB_DIRS} | |
49 | fi | |
50 | if [ "${libdir}" != /usr/lib ]; then | |
51 | LIB_PATH=${LIB_PATH}:${libdir} | |
52 | fi | |
53 | if [ "${libdir}" != /usr/local/lib ] ; then | |
54 | LIB_PATH=${LIB_PATH}:/usr/local/lib | |
55 | fi | |
56 | esac | |
252b5132 RH |
57 | fi |
58 | fi | |
59 | ||
60 | # Always search $(tooldir)/lib, aka /usr/local/TARGET/lib. | |
61 | LIB_PATH=${LIB_PATH}:${tool_lib} | |
62 | ||
63 | LIB_SEARCH_DIRS=`echo ${LIB_PATH} | tr ':' ' ' | sed -e 's/\([^ ][^ ]*\)/SEARCH_DIR(\1);/g'` | |
64 | ||
65 | # Generate 5 or 6 script files from a master script template in | |
66 | # ${srcdir}/scripttempl/${SCRIPT_NAME}.sh. Which one of the 5 or 6 | |
67 | # script files is actually used depends on command line options given | |
68 | # to ld. (SCRIPT_NAME was set in the emulparams_file.) | |
69 | # | |
70 | # A .x script file is the default script. | |
71 | # A .xr script is for linking without relocation (-r flag). | |
72 | # A .xu script is like .xr, but *do* create constructors (-Ur flag). | |
73 | # A .xn script is for linking with -n flag (mix text and data on same page). | |
74 | # A .xbn script is for linking with -N flag (mix text and data on same page). | |
75 | # A .xs script is for generating a shared library with the --shared | |
76 | # flag; it is only generated if $GENERATE_SHLIB_SCRIPT is set by the | |
77 | # emulation parameters. | |
78 | ||
79 | SEGMENT_SIZE=${SEGMENT_SIZE-${TARGET_PAGE_SIZE}} | |
80 | ||
81 | # Determine DATA_ALIGNMENT for the 5 variants, using | |
82 | # values specified in the emulparams/<emulation>.sh file or default. | |
83 | ||
84 | DATA_ALIGNMENT_="${DATA_ALIGNMENT_-${DATA_ALIGNMENT-ALIGN(${SEGMENT_SIZE})}}" | |
85 | DATA_ALIGNMENT_n="${DATA_ALIGNMENT_n-${DATA_ALIGNMENT_}}" | |
86 | DATA_ALIGNMENT_N="${DATA_ALIGNMENT_N-${DATA_ALIGNMENT-.}}" | |
87 | DATA_ALIGNMENT_r="${DATA_ALIGNMENT_r-${DATA_ALIGNMENT-}}" | |
88 | DATA_ALIGNMENT_u="${DATA_ALIGNMENT_u-${DATA_ALIGNMENT_r}}" | |
89 | ||
90 | LD_FLAG=r | |
91 | DATA_ALIGNMENT=${DATA_ALIGNMENT_r} | |
92 | DEFAULT_DATA_ALIGNMENT="ALIGN(${SEGMENT_SIZE})" | |
93 | (. ${srcdir}/scripttempl/${SCRIPT_NAME}.sc) | sed -e '/^ *$/d' > \ | |
94 | ldscripts/${EMULATION_NAME}.xr | |
95 | ||
96 | LD_FLAG=u | |
97 | DATA_ALIGNMENT=${DATA_ALIGNMENT_u} | |
98 | CONSTRUCTING=" " | |
99 | (. ${srcdir}/scripttempl/${SCRIPT_NAME}.sc) | sed -e '/^ *$/d' > \ | |
100 | ldscripts/${EMULATION_NAME}.xu | |
101 | ||
102 | LD_FLAG= | |
103 | DATA_ALIGNMENT=${DATA_ALIGNMENT_} | |
104 | RELOCATING=" " | |
105 | (. ${srcdir}/scripttempl/${SCRIPT_NAME}.sc) | sed -e '/^ *$/d' > \ | |
106 | ldscripts/${EMULATION_NAME}.x | |
107 | ||
108 | LD_FLAG=n | |
109 | DATA_ALIGNMENT=${DATA_ALIGNMENT_n} | |
110 | TEXT_START_ADDR=${NONPAGED_TEXT_START_ADDR-${TEXT_START_ADDR}} | |
111 | (. ${srcdir}/scripttempl/${SCRIPT_NAME}.sc) | sed -e '/^ *$/d' > \ | |
112 | ldscripts/${EMULATION_NAME}.xn | |
113 | ||
114 | LD_FLAG=N | |
115 | DATA_ALIGNMENT=${DATA_ALIGNMENT_N} | |
116 | (. ${srcdir}/scripttempl/${SCRIPT_NAME}.sc) | sed -e '/^ *$/d' > \ | |
117 | ldscripts/${EMULATION_NAME}.xbn | |
118 | ||
119 | if test -n "$GENERATE_SHLIB_SCRIPT"; then | |
120 | LD_FLAG=shared | |
121 | DATA_ALIGNMENT=${DATA_ALIGNMENT_s-${DATA_ALIGNMENT_}} | |
122 | CREATE_SHLIB=" " | |
123 | # Note that TEXT_START_ADDR is set to NONPAGED_TEXT_START_ADDR. | |
124 | (. ${srcdir}/scripttempl/${SCRIPT_NAME}.sc) | sed -e '/^ *$/d' > \ | |
125 | ldscripts/${EMULATION_NAME}.xs | |
126 | fi | |
127 | ||
3336653a RH |
128 | for i in $EMULATION_LIBPATH ; do |
129 | test "$i" = "$EMULATION_NAME" && COMPILE_IN=true | |
130 | done | |
252b5132 RH |
131 | |
132 | # Generate e${EMULATION_NAME}.c. | |
133 | . ${srcdir}/emultempl/${TEMPLATE_NAME-generic}.em |