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* Makefile.in, ldtemplate: Need to use separate scripts
for -n and -N options. Yet more complication.
This commit is contained in:
Per Bothner
parent
fd671dc421
commit
972e7b4bc4
@ -1,3 +1,8 @@
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Mon Oct 14 17:27:24 1991 Per Bothner (bothner at cygnus.com)
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* Makefile.in, ldtemplate: Need to use separate scripts
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for -n and -N options. Yet more complication.
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Fri Oct 11 22:40:46 1991 John Gilmore (gnu at cygnus.com)
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* Makefile.in: Avoid using $< in explicit Make rules (it doesn't
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@ -52,7 +52,7 @@ SCRIPTS = ldgld68k.sc ldgld.sc \
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CFLAGS = $(INCLUDES) $(DEBUG) $(HDEFINES) $(TDEFINES) $(CDEFINES)
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LINTFLAGS = $(INCLUDES) $(EXTRA_DEF)
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.SUFFIXES: .y .x .xr .xu .xn .sc .scu .scr .scn $(SUFFIXES)
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.SUFFIXES: .y .x .xr .xu .xn .xN .sc .scu .scr .scn $(SUFFIXES)
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# go directly to ld.new in case this ld isn't capable of
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# linking native object on this host. It can be renamed on
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@ -63,7 +63,8 @@ LD_PROG = ld.new
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# sed is used to transform this script into two variant forms:
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# A .scr script is for linking without relocation (-r flag).
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# A .scu script is like .scr, but *do* create constructors.
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# A .scu script is for linking to non-demand-paged output (-N or -n).
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# A .scn script is for linking with -N flag (mix text and data on same page).
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# A .scN script is for linking with -N flag (mix text and data on same page).
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# The diference is that segments should (need) not be page aligned.
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# A sed pattern to translate .sc to .scu:
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@ -75,40 +76,47 @@ SED_MAKE_RELOC_WITH_CONSTRUCTORS=\
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-e "/data/s/[.]data .*:/.data :/"
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# A sed pattern to translate .scu to .scr:
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SED_REMOVE_CONSTRUCTORS= -e /CONSTRUCTORS/d
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# A sed pattern to translate .sc to .scn:
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# We assume that any reasonable page size ends with 00
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# (Some things are aligned on 8-byte boundaries; ignore those.)
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SED_DONT_ALIGN= -e '/ALIGN/s/ALIGN( *0x[0-9a-fA-F]*00 *)/./'
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.sc.scu:
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sed $(SED_MAKE_RELOC_WITH_CONSTRUCTORS) $< >$*.scu
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.sc.scn:
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sed $(SED_DONT_ALIGN) $< >$*.scn
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.scu.scr:
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sed $(SED_REMOVE_CONSTRUCTORS) < $< >$*.scr
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# Each .sc .scr .scu or .scn script is filtered by mkscript
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# into a string literal that can be included in a .c program.
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# Each builtin script file is included as a C string literal.
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# These are generated by the mkscript filter.
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.sc.x:
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if [ "x"$(LIB_PATH) = "x" ]; then ./mkscript < $< >$*.x ; \
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else \
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(sed <$< -e '/SEARCH_DIR(.*)/d' ; \
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echo $(LIB_PATH) | tr ':' ' ' | sed -e 's/\([^ ][^ ]*\)/SEARCH_DIR(\1);/g';) | ./mkscript >$*.x;\
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fi
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# ./mkscript < $< >$*.x
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.scu.xu:
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./mkscript < $< >$*.xu
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.scr.xr:
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./mkscript < $< >$*.xr
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.scn.xn:
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./mkscript < $< >$*.xn
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# The .xn script is used if the -n flag is given (write-protect text)..
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# Sunos starts the text segment for demand-paged binaries at 0x2020
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# and other binaries at 0x2000, since the exec header is paged in
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# with the text. Some other Unix variants do the same.
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# For -n and -N flags the offset of the exec header must be removed.
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# This sed script does this if the master script contains
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# a line of the form ".text 0xAAAA BLOCK(0xBBBB):" - the
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# output will contain ".text 0xBBBB:". (For Sunos AAAA=2020 and BBBB=2000.)
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.x.xn:
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sed -e '/text/s/\.text .* BLOCK(\([^)]*\)):/.text \1:/' < $< >$*.xn
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# The .xN script is used if the -N flag is given (don't write-protect text).
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# This is like -n, except that the data segment need not be page-aligned.
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# So get rid of commands for page-alignment: We assume these use ALIGN
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# with a hex constant that end with 00, since any normal page size is be
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# at least divisible by 256. We use the 00 to avoid matching
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# anything that tries to align of (say) 8-byte boundaries.
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.xn.xN:
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sed -e '/ALIGN/s/ALIGN( *0x[0-9a-fA-F]*00 *)/./' < $< >$*.xN
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# The xu and xr scripts don't search libraries, so LIB_PATH doesn't matter.
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.sc.xu:
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sed $(SED_MAKE_RELOC_WITH_CONSTRUCTORS) < $< | ./mkscript >$*.xu
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.sc.xr:
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sed $(SED_MAKE_RELOC_WITH_CONSTRUCTORS) $(SED_REMOVE_CONSTRUCTORS) \
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< $< | ./mkscript >$*.xr
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.sc.xn:
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sed $(SED_DONT_ALIGN) < $< | ./mkscript >$*.xn
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# for self hosting
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BFDLIB=$(unsubdir)/../bfd$(subdir)/libbfd.a
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@ -174,12 +182,15 @@ ldm88k.c: $(srcdir)/ldtemplate
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-e s/"<target>"/m88kbcs/g -e s/"<TARGET>"/M88KBCS/g <$(srcdir)/ldtemplate >$@
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# The .c files for these are generated from ldtemplete.
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ldgld.o: ./mkscript ldgld.x ldgld.xr ldgld.xu ldgld.xn
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news.o: ./mkscript news.x news.xr news.xu news.xn
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ebmon29k.o: ./mkscript ebmon29k.x ebmon29k.xr ebmon29k.xu ebmon29k.xn
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ldgld68k.o: ./mkscript ldgld68k.x ldgld68k.xr ldgld68k.xu ldgld68k.xn
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ldglda29k.o: ./mkscript ldglda29k.x ldglda29k.xr ldglda29k.xu ldglda29k.xn
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ldm88k.o: ./mkscript ldm88k.x ldm88k.xr ldm88k.xu ldm88k.xn
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ldgld.o: ./mkscript ldgld.x ldgld.xr ldgld.xu ldgld.xn ldgld.xN
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news.o: ./mkscript news.x news.xr news.xu news.xn news.xN
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ebmon29k.o: ./mkscript ebmon29k.x ebmon29k.xr ebmon29k.xu \
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ebmon29k.xn ebmon29k.xN
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ldgld68k.o: ./mkscript ldgld68k.x ldgld68k.xr ldgld68k.xu \
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ldgld68k.xn ldgld68k.xN
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ldglda29k.o: ./mkscript ldglda29k.x ldglda29k.xr ldglda29k.xu \
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ldglda29k.xn ldglda29k.xN
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ldm88k.o: ./mkscript ldm88k.x ldm88k.xr ldm88k.xu ldm88k.xn ldm88k.xN
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# The .c files for these are (for now) specially written (not ldtemplete).
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ldgld960.o: ./mkscript ldgld960.x
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@ -309,7 +320,7 @@ de-stage3: force
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clean:
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- rm -f TAGS $(OFILES) $(GENERATED_SOURCES) $(GENERATED_HEADERS)
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- rm -f *.x *.x[ru] *.sc[ur]
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- rm -f *.x *.x[runN] *.sc[runN]
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- rm -f ld.?? ld.???
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- rm -f ld ld1 ld2 ld3 ld.new mkscript *.o y.output
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@ -126,9 +126,12 @@ static char *gld<target>_script_option_Ur =
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static char *gld<target>_script_option_r =
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#include "<ldtarget>.xr"
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;
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static char *gld<target>_script_option_n = /* Used with -n and -N flags. */
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static char *gld<target>_script_option_n = /* Used with -n flag. */
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#include "<ldtarget>.xn"
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;
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static char *gld<target>_script_option_N = /* Used with -N flag. */
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#include "<ldtarget>.xN"
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;
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static char *gld<target>_get_script()
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{
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@ -140,7 +143,9 @@ static char *gld<target>_get_script()
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if (config.relocateable_output == true) {
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return gld<target>_script_option_r;
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}
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if (config.magic_demand_paged == false)
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if (!config.text_read_only)
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return gld<target>_script_option_N;
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if (!config.magic_demand_paged)
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return gld<target>_script_option_n;
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return gld<target>_script;
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}
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