Commit | Line | Data |
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173a0c3d | 1 | # genscripts.sh |
de566389 PB |
2 | # This shell script does the work of generating the ld-emulation-target |
3 | # specific information from a specific file of paramaters. | |
ff76a7db | 4 | # Usage: genscripts.sh srcdir libdir host_alias target_alias emulation_name |
173a0c3d | 5 | # Sample usage: |
ff76a7db | 6 | # genscripts.sh /offsite/djm/work/devo/ld /usr/local/lib sparc-sun-sunos4.1.3 sparc-sun-sunos4.1.3 sun3.sh |
173a0c3d | 7 | # produces sun3.x sun3.xbn sun3.xn sun3.xr sun3.xu em_sun3.c |
de566389 PB |
8 | |
9 | srcdir=$1 | |
ff76a7db DM |
10 | libdir=$2 |
11 | host_alias=$3 | |
12 | target_alias=$4 | |
de566389 | 13 | |
173a0c3d | 14 | # Include the emulation-specific parameters: |
ff76a7db | 15 | . ${srcdir}/emulparams/$5 |
de566389 | 16 | |
173a0c3d DM |
17 | # Set the library search path, for libraries named by -lfoo. |
18 | # If LIB_PATH is defined (e.g., by Makefile) and non-empty, it is used. | |
19 | # Otherwise, the default is set here. | |
20 | # | |
21 | # The format is the usual list of colon-separated directories. | |
22 | # To force a logically empty LIB_PATH, do LIBPATH=":". | |
de566389 | 23 | |
173a0c3d DM |
24 | if [ "x${LIB_PATH}" = "x" ] ; then |
25 | if [ "x${host_alias}" = "x${target_alias}" ] ; then | |
26 | # Native. | |
ff76a7db | 27 | LIB_PATH=/lib:/usr/lib:${libdir} |
173a0c3d DM |
28 | if [ "${libdir}" != /usr/local/lib ] ; then |
29 | LIB_PATH=${LIB_PATH}:/usr/local/lib | |
30 | fi | |
31 | else | |
32 | # Cross. | |
ff76a7db | 33 | LIB_PATH= |
173a0c3d | 34 | fi |
de566389 PB |
35 | fi |
36 | LIB_SEARCH_DIRS=`echo ${LIB_PATH} | tr ':' ' ' | sed -e 's/\([^ ][^ ]*\)/SEARCH_DIR(\1);/g'` | |
37 | ||
173a0c3d DM |
38 | # Generate 5 script files from a master script template in |
39 | # ${srcdir}/scripttempl/${SCRIPT_NAME}.sh. Which one of the 5 script files | |
40 | # is actually used depends on command line options given to ld. | |
de566389 PB |
41 | # |
42 | # A .x script file is the default script. | |
43 | # A .xr script is for linking without relocation (-r flag). | |
44 | # A .xu script is like .xr, but *do* create constructors (-Ur flag). | |
45 | # A .xn script is for linking with -n flag (mix text and data on same page). | |
173a0c3d | 46 | # A .xbn script is for linking with -N flag (mix text and data on same page). |
de566389 | 47 | |
de566389 PB |
48 | SEGMENT_SIZE=${SEGMENT_SIZE-${PAGE_SIZE}} |
49 | ||
173a0c3d DM |
50 | # Determine DATA_ALIGNMENT for the 5 variants, using |
51 | # values specified in the emulparams/<emulation>.sh file or default. | |
52 | ||
53 | DATA_ALIGNMENT_="${DATA_ALIGNMENT_-${DATA_ALIGNMENT-ALIGN(${SEGMENT_SIZE})}}" | |
54 | DATA_ALIGNMENT_n="${DATA_ALIGNMENT_n-${DATA_ALIGNMENT_}}" | |
55 | DATA_ALIGNMENT_N="${DATA_ALIGNMENT_N-${DATA_ALIGNMENT-.}}" | |
56 | DATA_ALIGNMENT_r="${DATA_ALIGNMENT_r-${DATA_ALIGNMENT-}}" | |
57 | DATA_ALIGNMENT_u="${DATA_ALIGNMENT_u-${DATA_ALIGNMENT_r}}" | |
58 | ||
59 | LD_FLAG=r | |
60 | DATA_ALIGNMENT=${DATA_ALIGNMENT_r} | |
61 | DEFAULT_DATA_ALIGNMENT="ALIGN(${SEGMENT_SIZE})" | |
62 | (. ${srcdir}/scripttempl/${SCRIPT_NAME}.sc) | sed -e '/^ *$/d' > \ | |
63 | ldscripts/${EMULATION_NAME}.xr | |
64 | ||
65 | LD_FLAG=u | |
66 | DATA_ALIGNMENT=${DATA_ALIGNMENT_u} | |
de566389 | 67 | CONSTRUCTING= |
173a0c3d DM |
68 | (. ${srcdir}/scripttempl/${SCRIPT_NAME}.sc) | sed -e '/^ *$/d' > \ |
69 | ldscripts/${EMULATION_NAME}.xu | |
70 | ||
71 | LD_FLAG= | |
72 | DATA_ALIGNMENT=${DATA_ALIGNMENT_} | |
de566389 | 73 | RELOCATING= |
173a0c3d DM |
74 | (. ${srcdir}/scripttempl/${SCRIPT_NAME}.sc) | sed -e '/^ *$/d' > \ |
75 | ldscripts/${EMULATION_NAME}.x | |
76 | ||
77 | LD_FLAG=n | |
78 | DATA_ALIGNMENT=${DATA_ALIGNMENT_n} | |
79 | TEXT_START_ADDR=${NONPAGED_TEXT_START_ADDR-${TEXT_START_ADDR}} | |
80 | (. ${srcdir}/scripttempl/${SCRIPT_NAME}.sc) | sed -e '/^ *$/d' > \ | |
81 | ldscripts/${EMULATION_NAME}.xn | |
82 | ||
83 | LD_FLAG=N | |
84 | DATA_ALIGNMENT=${DATA_ALIGNMENT_N} | |
85 | (. ${srcdir}/scripttempl/${SCRIPT_NAME}.sc) | sed -e '/^ *$/d' > \ | |
86 | ldscripts/${EMULATION_NAME}.xbn | |
de566389 PB |
87 | |
88 | #sed -e s/"<ldtarget>"/${EMULATION_NAME}/g -e s/"<arch>"/${ARCH}/g \ | |
89 | # -e s/"<target>"/${EMULATION_NAME}/g -e s/"<target_name>"/${OUTPUT_FORMAT}/g \ | |
173a0c3d | 90 | # <${srcdir}/${TEMPLATE_NAME-ldtemplate} >em_${EMULATION_NAME}.c |
de566389 | 91 | |
173a0c3d DM |
92 | # Generate em_${EMULATION_NAME}.c. |
93 | . ${srcdir}/emultempl/${TEMPLATE_NAME-generic}.em |