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6738cadcc7
ld/ * Makefile.am (HOSTING_SCRT0): New. * configure.host (HOSTING_SCRT0): New. Used for PIE. * configure.in (HOSTING_SCRT0): New AC_SUBST. * Makefile.in: Regenerated. * configure: Likewise. ld/testsuite/ * config/default.exp (get_target_emul): Also set HOSTING_SCRT0. * lib/ld-lib.exp (default_ld_link): Use HOSTING_SCRT0 for -pie.
252 lines
13 KiB
Plaintext
252 lines
13 KiB
Plaintext
# This is the linker host specific file. This is invoked by the
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# autoconf generated configure script. Putting it in a separate shell
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# file lets us skip running autoconf when modifying host specific
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# information.
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#
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# Copyright 2012 Free Software Foundation
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#
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# This file is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; see the file COPYING3. If not see
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# <http://www.gnu.org/licenses/>.
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#
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# This file sets the following shell variables:
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# HDEFINES host specific compiler flags
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# HOSTING_CRT0 crt0.o file used for bootstrapping
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# HOSTING_LIBS libraries used for bootstrapping
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HDEFINES=
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HOSTING_CRT0=/lib/crt0.o
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HOSTING_LIBS='`if [ -f ../gcc/libgcc.a ]; then libgcc=../gcc/libgcc.a; else libgcc=\`${CC} -print-libgcc-file-name\`; fi; if [ -f ../gcc/libgcc_eh.a ]; then libgcc="$$libgcc ../gcc/libgcc_eh.a"; else libgcc_eh=\`${CC} -print-file-name=libgcc_eh.a\`; if [ x"$$libgcc_eh" != xlibgcc_eh.a ]; then libgcc="$$libgcc $$libgcc_eh"; fi; fi; if [ -f ../gcc/libunwind.a ]; then libgcc="$$libgcc ../gcc/libunwind.a"; else libunwind=\`${CC} -print-file-name=libunwind.a\`; if [ x"$$libunwind" != xlibunwind.a ]; then libgcc="$$libgcc $$libunwind"; fi; fi; echo --start-group $$libgcc -lc --end-group`'
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#
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# Generic configurations:
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#
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case "${host}" in
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*-*-dragonfly*)
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HOSTING_CRT0='-dynamic-linker `[ -f \`${CC} --print-prog-name=ld-elf.so.2\` ] || echo /usr/libexec/``${CC} --print-prog-name=ld-elf.so.2` `${CC} --print-file-name=crt1.o` `${CC} --print-file-name=crti.o` `${CC} --print-file-name=crtbegin.o`'
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HOSTING_LIBS='-L`dirname \`${CC} --print-file-name=libc.so\`` '"$HOSTING_LIBS"' `if [ -f ../gcc/crtend.o ]; then echo ../gcc/crtend.o; else ${CC} --print-file-name=crtend.o; fi` `${CC} --print-file-name=crtn.o`'
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;;
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*-*-freebsd* | *-*-kfreebsd*-gnu)
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HOSTING_CRT0='-dynamic-linker `[ -f \`${CC} --print-prog-name=ld-elf.so.1\` ] || echo /usr/libexec/``${CC} --print-prog-name=ld-elf.so.1` `${CC} --print-file-name=crt1.o` `${CC} --print-file-name=crti.o` `${CC} --print-file-name=crtbegin.o`'
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HOSTING_LIBS='-L`dirname \`${CC} --print-file-name=libc.so\`` '"$HOSTING_LIBS"' `if [ -f ../gcc/crtend.o ]; then echo ../gcc/crtend.o; else ${CC} --print-file-name=crtend.o; fi` `${CC} --print-file-name=crtn.o`'
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;;
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*-*-linux*aout* | *-*-linux*oldld)
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HOSTING_CRT0=/usr/lib/crt0.o
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;;
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*-*-linux*libc1*)
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HOSTING_CRT0='-dynamic-linker /lib/ld-linux.so.1 /usr/lib/crt1.o /usr/lib/crti.o `if [ -f ../gcc/crtbegin.o ]; then echo ../gcc/crtbegin.o; elif [ -f /usr/lib/crtbegin.o ]; then echo /usr/lib/crtbegin.o; else ${CC} --print-file-name=crtbegin.o; fi`'
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HOSTING_LIBS="$HOSTING_LIBS"' `if [ -f ../gcc/crtend.o ]; then echo ../gcc/crtend.o; elif [ -f /usr/lib/crtend.o ]; then echo /usr/lib/crtend.o; else ${CC} --print-file-name=crtend.o; fi` /usr/lib/crtn.o'
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;;
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*-*-linux*)
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HOSTING_CRT0='-dynamic-linker `${CC} --help --verbose 2>&1 | egrep "ld[^ ]*\.so" | sed -e "s,.*-dynamic-linker[ ][ ]*\(.*/ld[^ ]*\.so..\).*,\1,"` `${CC} --print-file-name=crt1.o` `${CC} --print-file-name=crti.o` `if [ -f ../gcc/crtbegin.o ]; then echo ../gcc/crtbegin.o; else ${CC} --print-file-name=crtbegin.o; fi`'
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HOSTING_SCRT0='-dynamic-linker `${CC} --help --verbose 2>&1 | egrep "ld[^ ]*\.so" | sed -e "s,.*-dynamic-linker[ ][ ]*\(.*/ld[^ ]*\.so..\).*,\1,"` `${CC} --print-file-name=Scrt1.o` `${CC} --print-file-name=crti.o` `if [ -f ../gcc/crtbeginS.o ]; then echo ../gcc/crtbeginS.o; else ${CC} --print-file-name=crtbeginS.o; fi`'
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HOSTING_LIBS='-L`dirname \`${CC} --print-file-name=libc.so\`` '"$HOSTING_LIBS"' `if [ -f ../gcc/crtend.o ]; then echo ../gcc/crtend.o; else ${CC} --print-file-name=crtend.o; fi` `${CC} --print-file-name=crtn.o`'
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;;
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*-*-gnu*)
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# When creating static executables, we ought to use crt0.o instead of crt1.o,
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# <http://www.gnu.org/software/hurd/open_issues/binutils.html#static>,
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# but the testing infrastructure is not prepared for that. This is not
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# relevant for most tests, and the few remaining ones have been XFAILed.
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HOSTING_CRT0='-dynamic-linker `${CC} --help --verbose 2>&1 | egrep "ld[^ ]*\.so" | sed -e "s,.*-dynamic-linker[ ][ ]*\(.*/ld[^ ]*\.so[^ ]*\).*,\1,"` `${CC} --print-file-name=crt1.o` `${CC} --print-file-name=crti.o` `if [ -f ../gcc/crtbegin.o ]; then echo ../gcc/crtbegin.o; else ${CC} --print-file-name=crtbegin.o; fi`'
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HOSTING_LIBS='-L`dirname \`${CC} --print-file-name=libc.so\`` '"$HOSTING_LIBS"' `if [ -f ../gcc/crtend.o ]; then echo ../gcc/crtend.o; else ${CC} --print-file-name=crtend.o; fi` `${CC} --print-file-name=crtn.o`'
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;;
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*-*-netbsd*)
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# Different versions of NetBSD with the ELF object format use different
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# sets of start/end files.
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HOSTING_CRT0='-dynamic-linker /usr/libexec/ld.elf_so /usr/lib/crt0.o'
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if [ -f `${CC} --print-file-name=crti.o` ]; then
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# Support for GCC's crtstuff present.
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HOSTING_CRT0="$HOSTING_CRT0 `${CC} --print-file-name=crti.o`"
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if [ -f ../gcc/crtbegin.o ]; then
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HOSTING_CRT0="$HOSTING_CRT0 ../gcc/crtbegin.o"
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else
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HOSTING_CRT0="$HOSTING_CRT0 `${CC} --print-file-name=crtbegin.o`"
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fi
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else
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# Support for GCC's crtstuff not present.
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HOSTING_CRT0="$HOSTING_CRT0 `${CC} --print-file-name=crtbegin.o`"
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fi
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if [ -f `${CC} --print-file-name=crtn.o` ]; then
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# Support for GCC's crtstuff present.
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if [ -f ../gcc/crtbegin.o ]; then
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HOSTING_LIBS="$HOSTING_LIBS ../gcc/crtend.o"
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else
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HOSTING_LIBS="$HOSTING_LIBS `${CC} --print-file-name=crtend.o`"
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fi
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HOSTING_LIBS="$HOSTING_LIBS `${CC} --print-file-name=crtn.o`"
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else
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# Support for GCC's crtstuff not present.
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HOSTING_LIBS="$HOSTING_LIBS `${CC} --print-file-name=crtend.o`"
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fi
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;;
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*-*-openbsd*)
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HOSTING_CRT0="-dynamic-linker /usr/libexec/ld.so /usr/lib/crt0.o"
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HOSTING_CRT0="$HOSTING_CRT0 /usr/lib/crtbegin.o"
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HOSTING_LIBS="$HOSTING_LIBS /usr/lib/crtend.o"
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;;
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esac
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#
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# Now more specific configurations
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#
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case "${host}" in
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*-*-linux*aout* | *-*-linux*oldld | *-*-linux*libc1*)
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# No further tweaking needed
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;;
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arm*-*-linux-*)
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HOSTING_CRT0='-p '"$HOSTING_CRT0"
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;;
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hppa*64*-*-hpux11*)
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HOSTING_CRT0=/usr/ccs/lib/pa20_64/crt0.o
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# Even if CC is not gcc, the tests use gcc.
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HOSTING_LIBS='--start-group `if [ -f ../gcc/libgcc.a ]; then echo ../gcc/libgcc.a; else if test "$GCC" = yes; then ${CC} --print-libgcc-file-name; else gcc --print-libgcc-file-name; fi fi` -lc --end-group /usr/lib/pa20_64/milli.a'
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;;
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i[3-7]86-*-bsd* | i[3-7]86-*-freebsd[12] | i[3-7]86-*-freebsd[12]\.* | i[3-7]86-*-freebsd*aout*)
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HOSTING_CRT0=/usr/lib/crt0.o
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;;
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i[3-7]86-*-sysv4*)
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HOSTING_CRT0='/usr/ccs/lib/crt1.o /usr/ccs/lib/crti.o /usr/ccs/lib/values-Xa.o `if [ -f ../gcc/crtbegin.o ]; then echo ../gcc/crtbegin.o; else ${CC} -print-file-name=crtbegin.o; fi`'
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HOSTING_LIBS="$HOSTING_LIBS"' `if [ -f ../gcc/crtend.o ]; then echo ../gcc/crtend.o; else ${CC} -print-file-name=crtend.o; fi` /usr/ccs/lib/crtn.o'
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;;
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i[3-7]86-sequent-ptx* | i[3-7]86-sequent-sysv*)
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HOSTING_CRT0='/lib/crt0.o `if [ -f ../gcc/crtbegin.o ]; then echo ../gcc/crtbegin.o; else ${CC} -print-file-name=crtbegin.o; fi`'
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HOSTING_LIBS="$HOSTING_LIBS"' `if [ -f ../gcc/crtend.o ]; then echo ../gcc/crtend.o; else ${CC} -print-file-name=crtend.o; fi`'
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;;
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i[3-7]86-*-sysv*)
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HOSTING_CRT0='/lib/crt1.o `if [ -f ../gcc/crtbegin.o ]; then echo ../gcc/crtbegin.o; fi`'
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HOSTING_LIBS="$HOSTING_LIBS"' `if [ -f ../gcc/crtend.o ]; then echo ../gcc/crtend.o; fi` /lib/crtn.o'
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;;
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i[3-7]86-*-solaris*)
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HOSTING_CRT0='`if [ -f ../gcc/crt1.o ]; then echo ../gcc/crt1.o; else ${CC} -print-file-name=crt1.o; fi` `if [ -f ../gcc/crti.o ]; then echo ../gcc/crti.o; else ${CC} -print-file-name=crti.o; fi` /usr/ccs/lib/values-Xa.o `if [ -f ../gcc/crtbegin.o ]; then echo ../gcc/crtbegin.o; else ${CC} -print-file-name=crtbegin.o; fi`'
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HOSTING_LIBS="$HOSTING_LIBS"' `if [ -f ../gcc/crtend.o ]; then echo ../gcc/crtend.o; else ${CC} -print-file-name=crtend.o; fi` `if [ -f ../gcc/crtn.o ]; then echo ../gcc/crtn.o; else ${CC} -print-file-name=crtn.o; fi`'
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;;
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i[3-7]86-*-sco* | i[3-7]86-*-isc*)
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# In some configurations gcc does not use crtbegin.o and crtend.o.
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# In that case gcc -print-file-name=crtbegin.o will simply print
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# crtbegin.o. We create dummy crtbegin.o and crtend.o files to
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# handle this.
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echo "int dummy_crtbegin () { return 0; }" > crtbegin.c
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${CC} -c crtbegin.c -o crtbegin.o
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rm -f crtbegin.c
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echo "int dummy_crteng () { return 0; }" > crtend.c
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${CC} -c crtend.c -o crtend.o
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rm -f crtend.c
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HOSTING_CRT0='/lib/crt1.o `if [ -f ../gcc/crtbegin.o ]; then echo ../gcc/crtbegin.o; else ${CC} -print-file-name=crtbegin.o; fi`'
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HOSTING_LIBS="$HOSTING_LIBS"' `if [ -f ../gcc/crtend.o ]; then echo ../gcc/crtend.o; else ${CC} -print-file-name=crtend.o; fi` /lib/crtn.o'
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;;
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i[3-7]86-pc-interix*)
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HOSTING_CRT0='$$INTERIX_ROOT/usr/lib/crt0.o'
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HOSTING_LIBS='-L $$X/local_bin -L $$INTERIX_ROOT/usr/lib '"$HOSTING_LIBS"' -lcpsx -lc -lcpsx $$INTERIX_ROOT/usr/lib/psxdll.a $$INTERIX_ROOT/usr/lib/psxdll2.a'
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;;
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i[3-7]86-*-cygwin*)
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HOSTING_LIBS="$HOSTING_LIBS"' -lcygwin -L/usr/lib/w32api -luser32 -lkernel32 -ladvapi32 -lshell32 `if [ -f ../gcc/libgcc.a ] ; then echo ../gcc/libgcc.a ; else ${CC} -print-libgcc-file-name; fi`'
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;;
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i[3-7]86-*-mingw*)
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#We only support msvcrt.dll, crtid == 2.
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HOSTING_CRT0='/mingw/lib/crt2.o'
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HOSTING_LIBS='-L/mingw/lib -lmingw32 -lmoldname -lmingwex -lmsvcrt -luser32 -lkernel32 -ladvapi32 -lshell32 -lmingw32 -lmoldname -lmingwex -lmsvcrt `if [ -f ../gcc/libgcc.a ] ; then echo ../gcc/libgcc.a ; else ${CC} -print-libgcc-file-name; fi`'
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;;
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mips*-sgi-irix4* | mips*-sgi-irix5*)
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HOSTING_CRT0=/usr/lib/crt1.o
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HOSTING_LIBS="$HOSTING_LIBS"' /usr/lib/crtn.o'
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;;
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mips*-sgi-irix6*)
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HOSTING_CRT0='/usr/lib32/crt1.o `if [ -f ../gcc/crtbegin.o ]; then echo ../gcc/crtbegin.o ; else ${CC} -print-file-name=crtbegin.o; fi`'
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HOSTING_LIBS='-L/usr/lib32 '"$HOSTING_LIBS"' `if [ -f ../gcc/crtend.o ]; then echo ../gcc/crtend.o ; else ${CC} -print-file-name=crtend.o; fi` /usr/lib32/crtn.o -init __do_global_ctors -fini __do_global_dtors'
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;;
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m68*-motorola-sysv)
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HOSTING_CRT0='`if [ -f ../gcc/crt0.o ]; then echo ../gcc/crt0.o; elif [ -f \`${CC} -print-file-name=\`crt0.o ]; then echo \`${CC} -print-file-name=\`crt0.o; else echo /lib/crt0.o; fi`'
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HOSTING_LIBS=`sed -e 's,-lc,-lc881,' <<EOF
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$HOSTING_LIBS
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EOF`
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;;
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m68*-sun-*)
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HOSTING_CRT0='/usr/lib/crt0.o /usr/lib/Fcrt1.o -L/usr/lib/fsoft.o'
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;;
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m88*-*-dgux*)
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HDEFINES=-D__using_DGUX
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HOSTING_CRT0='/lib/crt0.o -X'
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HOSTING_LIBS=/usr/sde/m88kbcs/lib/libc.a
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;;
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m88*-motorola-sysv3)
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HOSTING_CRT0='/lib/crt0.o `if [ -f ../gcc/crtbegin.o ]; then echo ../gcc/crtbegin.o; else ${CC} -print-file-name=crtbegin.o; fi`'
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HOSTING_LIBS="$HOSTING_LIBS"' `if [ -f ../gcc/crtend.o ]; then echo ../gcc/crtend.o; else ${CC} -print-file-name=crtend.o; fi`'
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;;
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sparc-*-solaris2*)
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HOSTING_CRT0='`if [ -f ../gcc/crt1.o ]; then echo ../gcc/crt1.o; else ${CC} -print-file-name=crt1.o; fi` `if [ -f ../gcc/crti.o ]; then echo ../gcc/crti.o; else ${CC} -print-file-name=crti.o; fi` /usr/ccs/lib/values-Xa.o `if [ -f ../gcc/crtbegin.o ]; then echo ../gcc/crtbegin.o; else ${CC} -print-file-name=crtbegin.o; fi`'
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HOSTING_LIBS="$HOSTING_LIBS"' `if [ -f ../gcc/crtend.o ]; then echo ../gcc/crtend.o; else ${CC} -print-file-name=crtend.o; fi` `if [ -f ../gcc/crtn.o ]; then echo ../gcc/crtn.o; else ${CC} -print-file-name=crtn.o; fi`'
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;;
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sparc64-*-solaris2* | sparcv9-*-solaris2*)
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HOSTING_CRT0='`if [ -f ../gcc/crt1.o ]; then echo ../gcc/crt1.o; else ${CC} -print-file-name=crt1.o; fi` `if [ -f ../gcc/crti.o ]; then echo ../gcc/crti.o; else ${CC} -print-file-name=crti.o; fi` /usr/ccs/lib/sparcv9/values-Xa.o `if [ -f ../gcc/crtbegin.o ]; then echo ../gcc/crtbegin.o; else ${CC} -print-file-name=crtbegin.o; fi`'
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HOSTING_LIBS="$HOSTING_LIBS"' `if [ -f ../gcc/crtend.o ]; then echo ../gcc/crtend.o; else ${CC} -print-file-name=crtend.o; fi` `if [ -f ../gcc/crtn.o ]; then echo ../gcc/crtn.o; else ${CC} -print-file-name=crtn.o; fi`'
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;;
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*-*-dragonfly*)
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;;
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*-*-freebsd* | *-*-kfreebsd*-gnu)
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;;
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*-*-linux* | *-*-gnu*)
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;;
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*-*-netbsd*)
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;;
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*-*-openbsd*)
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;;
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alpha*-*-*)
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HOSTING_CRT0=/usr/ccs/lib/crt0.o
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;;
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esac
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# Provide default HOSTING_SCRT0. Each host should define a proper one
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# if needed.
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if test -z "$HOSTING_SCRT0"; then
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HOSTING_SCRT0="$HOSTING_CRT0"
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fi
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