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freebsd-nq/lib/csu/i386/Makefile

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$Id$ -> $FreeBSD$
1999-08-28 00:22:10 +00:00
# $FreeBSD$
minor style updating
2001-10-27 08:30:36 +00:00
Use SRCTOP-relative paths and .CURDIR with :H instead of ".." specified paths This implifies pathing in make/displayed output MFC after: 3 weeks Sponsored by: Dell EMC Isilon
2017-01-20 03:52:16 +00:00
.PATH: ${.CURDIR:H}/common
Import C startup files for ELF support. Submitted by: John Polstra <jdp@polstra.com>
1998-03-07 20:27:11 +00:00
Properly support -fPIE by linking PIE binaries with specially-built Scrt1.o instead of crt1.o, since the later is built as non-PIC. Separate i386-elf crt1.c into the pure assembler part and C code, supplying all data extracted by assembler stub as explicit parameters [1]. Hide and localize _start1 symbol used as an interface between asm and C code. In collaboration with: kan Inspired by: PR i386/127387 [1] Prodded and tested by: rdivacky [1] MFC after: 3 weeks
2009-12-02 16:34:20 +00:00
SRCS= crti.S crtn.S
Use bsd.lib.mk here as all other csu Makefiles do. This effectively reverts r124752. There's no reason this should be different. It resulted in needing NO_PIE in the original opt-out NO_PIE commit as this was not using the proper framework. Reported by: peter
2014-08-19 15:30:56 +00:00
OBJS= ${SRCS:N*.h:R:S/$/.o/g}
OBJS+= gcrt1.o crt1.o Scrt1.o
Process irelocs for statically linked binaries from crt1 on x86. This makes statically linked binaries with ifuncs operational. Reported and tested by: mjg Reviewed by: emaste, markj Sponsored by: The FreeBSD Foundation Approved by: re (rgrimes) Differential revision: https://reviews.freebsd.org/D17363
2018-10-13 23:52:55 +00:00
CFLAGS+= -I${.CURDIR} -I${.CURDIR:H}/common \
Use SRCTOP-relative paths and .CURDIR with :H instead of ".." specified paths This implifies pathing in make/displayed output MFC after: 3 weeks Sponsored by: Dell EMC Isilon
2017-01-20 03:52:16 +00:00
-I${SRCTOP}/lib/libc/include
Process irelocs for statically linked binaries from crt1 on x86. This makes statically linked binaries with ifuncs operational. Reported and tested by: mjg Reviewed by: emaste, markj Sponsored by: The FreeBSD Foundation Approved by: re (rgrimes) Differential revision: https://reviews.freebsd.org/D17363
2018-10-13 23:52:55 +00:00
CFLAGS+= -DCRT_IRELOC_REL
Use bsd.lib.mk here as all other csu Makefiles do. This effectively reverts r124752. There's no reason this should be different. It resulted in needing NO_PIE in the original opt-out NO_PIE commit as this was not using the proper framework. Reported by: peter
2014-08-19 15:30:56 +00:00
Replace realinstall: and META_MODE staging hacks with FILES mechanism. This partially reverts r270170 for lib/csu/i386 while retaining the change for using bsd.lib.mk. These FILES groups could go into lib/csu/Makefile.inc but I've kept them in the Makefiles for clarity. Sponsored by: EMC / Isilon Storage Division
2015-09-21 18:39:13 +00:00
FILES= ${OBJS}
FILESMODE= ${LIBMODE}
FILESOWN= ${LIBOWN}
FILESGRP= ${LIBGRP}
FILESDIR= ${LIBDIR}
Fix installation of 32bit libraries after r288074. FILES is not used when LIBRARIES_ONLY is set, which is used to build and install the lib32 sysroot. All of the csu files do quality as "libraries" for this case so just undefine LIBRARIES_ONLY. This is still better than the previous realinstall handling as it does not hook into META_MODE properly. Sponsored by: EMC / Isilon Storage Division
2015-09-21 21:44:02 +00:00
# These FILES qualify as libraries for the purpose of LIBRARIES_ONLY.
.undef LIBRARIES_ONLY
Use bsd.lib.mk here as all other csu Makefiles do. This effectively reverts r124752. There's no reason this should be different. It resulted in needing NO_PIE in the original opt-out NO_PIE commit as this was not using the proper framework. Reported by: peter
2014-08-19 15:30:56 +00:00
CLEANFILES= ${OBJS} crt1_c.o crt1_s.o gcrt1_c.o Scrt1_c.o
Apply a workaround for a binutils issue with the .note.ABI-tag section generated from lib/csu/common/crtbrand.c (which ultimately ends up in executables and shared libraries, via crt1.o, gcrt1.o or Scrt1.o). For all arches except sparc, gcc emits the section directive for the abitag struct in crtbrand.c with a PROGBITS type. However, newer versions of binutils (after 2.16.90) require the section to be of NOTE type, to guarantee that the .note.ABI-tag section correctly ends up in the first page of the final executable. Unfortunately, there is no clean way to tell gcc to use another section type, so crtbrand.c (or the C files that include it) must be compiled in multiple steps: - Compile the .c file to a .s file. - Edit the .s file to change the 'progbits' type to 'note', for the section directive that defines the .note.ABI-tag section. - Compile the .s file to an object file. These steps are done in the invididual Makefiles for each applicable arch. Reviewed by: kib
2011-01-13 20:44:31 +00:00
CLEANFILES+= crt1_c.s gcrt1_c.s Scrt1_c.s
Fixed CLEANFILES after bsd.lib.mk sweep.
2002-05-13 15:28:00 +00:00
Apply a workaround for a binutils issue with the .note.ABI-tag section generated from lib/csu/common/crtbrand.c (which ultimately ends up in executables and shared libraries, via crt1.o, gcrt1.o or Scrt1.o). For all arches except sparc, gcc emits the section directive for the abitag struct in crtbrand.c with a PROGBITS type. However, newer versions of binutils (after 2.16.90) require the section to be of NOTE type, to guarantee that the .note.ABI-tag section correctly ends up in the first page of the final executable. Unfortunately, there is no clean way to tell gcc to use another section type, so crtbrand.c (or the C files that include it) must be compiled in multiple steps: - Compile the .c file to a .s file. - Edit the .s file to change the 'progbits' type to 'note', for the section directive that defines the .note.ABI-tag section. - Compile the .s file to an object file. These steps are done in the invididual Makefiles for each applicable arch. Reviewed by: kib
2011-01-13 20:44:31 +00:00
# See the comment in lib/csu/common/crtbrand.c for the reason crt1_c.c is not
# directly compiled to .o files.
gcrt1_c.s: crt1_c.c
${CC} ${CFLAGS} -DGCRT -S -o ${.TARGET} ${.CURDIR}/crt1_c.c
Stop calling _init/_fini methods from crt1 for dynamic binaries. Do call preinit, init and fini arrays methods from crt1 for static binaries. Mark new crt1 with FreeBSD-specific ELF note. Move some common crt1 code into new MI file ignore_init.c, to reduce duplication. Also, conservatively adjust nearby sources for style. Reviewed by: kan Tested by: andrew (arm), flo (sparc64) MFC after: 3 weeks
2012-03-11 20:04:09 +00:00
sed ${SED_FIX_NOTE} ${.TARGET}
Apply a workaround for a binutils issue with the .note.ABI-tag section generated from lib/csu/common/crtbrand.c (which ultimately ends up in executables and shared libraries, via crt1.o, gcrt1.o or Scrt1.o). For all arches except sparc, gcc emits the section directive for the abitag struct in crtbrand.c with a PROGBITS type. However, newer versions of binutils (after 2.16.90) require the section to be of NOTE type, to guarantee that the .note.ABI-tag section correctly ends up in the first page of the final executable. Unfortunately, there is no clean way to tell gcc to use another section type, so crtbrand.c (or the C files that include it) must be compiled in multiple steps: - Compile the .c file to a .s file. - Edit the .s file to change the 'progbits' type to 'note', for the section directive that defines the .note.ABI-tag section. - Compile the .s file to an object file. These steps are done in the invididual Makefiles for each applicable arch. Reviewed by: kib
2011-01-13 20:44:31 +00:00
gcrt1_c.o: gcrt1_c.s
Rework r234502 to include a modified CFLAGS along with ACFLAGS. On most architectures crt objects are compiled in a multiple-step process so that sed can be run on the generated assembly. As the final step, the C compiler generates an object file from the modified assembly output. Currently this last step uses $CC with only $ACFLAGS. However, for other uses in the tree, $ACFLAGS is meant to include assembly-specific compiler flags that are in addition to $CFLAGS (see default .S.o rules bsd.suffixes.mk). In particular, external toolchains may require additional flags to select a non-default target which will be present in CFLAGS but not ACFLAGS. To support this while still mitigating the issue with CFLAGS described in r234502, include a modified CFLAGS that excludes "-g" when assembling the modified assembly files. Note that normally an assembler ($AS) is used to assemble .s flags to object files (see bsd.suffixes.mk). However, llvm-based toolchains do not currently have a stand-alone assembler. Reviewed by: imp Sponsored by: DARPA / AFRL Differential Revision: https://reviews.freebsd.org/D10085
2017-04-07 19:53:14 +00:00
${CC} ${CFLAGS:N-g} ${ACFLAGS} -c -o ${.TARGET} gcrt1_c.s
Properly support -fPIE by linking PIE binaries with specially-built Scrt1.o instead of crt1.o, since the later is built as non-PIC. Separate i386-elf crt1.c into the pure assembler part and C code, supplying all data extracted by assembler stub as explicit parameters [1]. Hide and localize _start1 symbol used as an interface between asm and C code. In collaboration with: kan Inspired by: PR i386/127387 [1] Prodded and tested by: rdivacky [1] MFC after: 3 weeks
2009-12-02 16:34:20 +00:00
gcrt1.o: gcrt1_c.o crt1_s.o
Reviewed by: imp LDFLAGS is supposed to be given to CC not LD. Define _LDFLAGS as a filtered version of LDFLAGS safe to give to LD
2014-07-26 04:38:09 +00:00
${LD} ${_LDFLAGS} -o gcrt1.o -r crt1_s.o gcrt1_c.o
Properly support -fPIE by linking PIE binaries with specially-built Scrt1.o instead of crt1.o, since the later is built as non-PIC. Separate i386-elf crt1.c into the pure assembler part and C code, supplying all data extracted by assembler stub as explicit parameters [1]. Hide and localize _start1 symbol used as an interface between asm and C code. In collaboration with: kan Inspired by: PR i386/127387 [1] Prodded and tested by: rdivacky [1] MFC after: 3 weeks
2009-12-02 16:34:20 +00:00
Apply a workaround for a binutils issue with the .note.ABI-tag section generated from lib/csu/common/crtbrand.c (which ultimately ends up in executables and shared libraries, via crt1.o, gcrt1.o or Scrt1.o). For all arches except sparc, gcc emits the section directive for the abitag struct in crtbrand.c with a PROGBITS type. However, newer versions of binutils (after 2.16.90) require the section to be of NOTE type, to guarantee that the .note.ABI-tag section correctly ends up in the first page of the final executable. Unfortunately, there is no clean way to tell gcc to use another section type, so crtbrand.c (or the C files that include it) must be compiled in multiple steps: - Compile the .c file to a .s file. - Edit the .s file to change the 'progbits' type to 'note', for the section directive that defines the .note.ABI-tag section. - Compile the .s file to an object file. These steps are done in the invididual Makefiles for each applicable arch. Reviewed by: kib
2011-01-13 20:44:31 +00:00
crt1_c.s: crt1_c.c
${CC} ${CFLAGS} -S -o ${.TARGET} ${.CURDIR}/crt1_c.c
Stop calling _init/_fini methods from crt1 for dynamic binaries. Do call preinit, init and fini arrays methods from crt1 for static binaries. Mark new crt1 with FreeBSD-specific ELF note. Move some common crt1 code into new MI file ignore_init.c, to reduce duplication. Also, conservatively adjust nearby sources for style. Reviewed by: kan Tested by: andrew (arm), flo (sparc64) MFC after: 3 weeks
2012-03-11 20:04:09 +00:00
sed ${SED_FIX_NOTE} ${.TARGET}
Apply a workaround for a binutils issue with the .note.ABI-tag section generated from lib/csu/common/crtbrand.c (which ultimately ends up in executables and shared libraries, via crt1.o, gcrt1.o or Scrt1.o). For all arches except sparc, gcc emits the section directive for the abitag struct in crtbrand.c with a PROGBITS type. However, newer versions of binutils (after 2.16.90) require the section to be of NOTE type, to guarantee that the .note.ABI-tag section correctly ends up in the first page of the final executable. Unfortunately, there is no clean way to tell gcc to use another section type, so crtbrand.c (or the C files that include it) must be compiled in multiple steps: - Compile the .c file to a .s file. - Edit the .s file to change the 'progbits' type to 'note', for the section directive that defines the .note.ABI-tag section. - Compile the .s file to an object file. These steps are done in the invididual Makefiles for each applicable arch. Reviewed by: kib
2011-01-13 20:44:31 +00:00
crt1_c.o: crt1_c.s
Rework r234502 to include a modified CFLAGS along with ACFLAGS. On most architectures crt objects are compiled in a multiple-step process so that sed can be run on the generated assembly. As the final step, the C compiler generates an object file from the modified assembly output. Currently this last step uses $CC with only $ACFLAGS. However, for other uses in the tree, $ACFLAGS is meant to include assembly-specific compiler flags that are in addition to $CFLAGS (see default .S.o rules bsd.suffixes.mk). In particular, external toolchains may require additional flags to select a non-default target which will be present in CFLAGS but not ACFLAGS. To support this while still mitigating the issue with CFLAGS described in r234502, include a modified CFLAGS that excludes "-g" when assembling the modified assembly files. Note that normally an assembler ($AS) is used to assemble .s flags to object files (see bsd.suffixes.mk). However, llvm-based toolchains do not currently have a stand-alone assembler. Reviewed by: imp Sponsored by: DARPA / AFRL Differential Revision: https://reviews.freebsd.org/D10085
2017-04-07 19:53:14 +00:00
${CC} ${CFLAGS:N-g} ${ACFLAGS} -c -o ${.TARGET} crt1_c.s
Apply a workaround for a binutils issue with the .note.ABI-tag section generated from lib/csu/common/crtbrand.c (which ultimately ends up in executables and shared libraries, via crt1.o, gcrt1.o or Scrt1.o). For all arches except sparc, gcc emits the section directive for the abitag struct in crtbrand.c with a PROGBITS type. However, newer versions of binutils (after 2.16.90) require the section to be of NOTE type, to guarantee that the .note.ABI-tag section correctly ends up in the first page of the final executable. Unfortunately, there is no clean way to tell gcc to use another section type, so crtbrand.c (or the C files that include it) must be compiled in multiple steps: - Compile the .c file to a .s file. - Edit the .s file to change the 'progbits' type to 'note', for the section directive that defines the .note.ABI-tag section. - Compile the .s file to an object file. These steps are done in the invididual Makefiles for each applicable arch. Reviewed by: kib
2011-01-13 20:44:31 +00:00
Properly support -fPIE by linking PIE binaries with specially-built Scrt1.o instead of crt1.o, since the later is built as non-PIC. Separate i386-elf crt1.c into the pure assembler part and C code, supplying all data extracted by assembler stub as explicit parameters [1]. Hide and localize _start1 symbol used as an interface between asm and C code. In collaboration with: kan Inspired by: PR i386/127387 [1] Prodded and tested by: rdivacky [1] MFC after: 3 weeks
2009-12-02 16:34:20 +00:00
crt1.o: crt1_c.o crt1_s.o
Reviewed by: imp LDFLAGS is supposed to be given to CC not LD. Define _LDFLAGS as a filtered version of LDFLAGS safe to give to LD
2014-07-26 04:38:09 +00:00
${LD} ${_LDFLAGS} -o crt1.o -r crt1_s.o crt1_c.o
Ensure the cross assembler, linker and objcopy are used for the build32 stage, just like for the regular world stage. Reviewed by: rodrigc, imp, bapt, emaste MFC after: 1 week Differential Revision: https://reviews.freebsd.org/D2187
2015-04-02 06:58:17 +00:00
${OBJCOPY} --localize-symbol _start1 crt1.o
Properly support -fPIE by linking PIE binaries with specially-built Scrt1.o instead of crt1.o, since the later is built as non-PIC. Separate i386-elf crt1.c into the pure assembler part and C code, supplying all data extracted by assembler stub as explicit parameters [1]. Hide and localize _start1 symbol used as an interface between asm and C code. In collaboration with: kan Inspired by: PR i386/127387 [1] Prodded and tested by: rdivacky [1] MFC after: 3 weeks
2009-12-02 16:34:20 +00:00
Apply a workaround for a binutils issue with the .note.ABI-tag section generated from lib/csu/common/crtbrand.c (which ultimately ends up in executables and shared libraries, via crt1.o, gcrt1.o or Scrt1.o). For all arches except sparc, gcc emits the section directive for the abitag struct in crtbrand.c with a PROGBITS type. However, newer versions of binutils (after 2.16.90) require the section to be of NOTE type, to guarantee that the .note.ABI-tag section correctly ends up in the first page of the final executable. Unfortunately, there is no clean way to tell gcc to use another section type, so crtbrand.c (or the C files that include it) must be compiled in multiple steps: - Compile the .c file to a .s file. - Edit the .s file to change the 'progbits' type to 'note', for the section directive that defines the .note.ABI-tag section. - Compile the .s file to an object file. These steps are done in the invididual Makefiles for each applicable arch. Reviewed by: kib
2011-01-13 20:44:31 +00:00
Scrt1_c.s: crt1_c.c
${CC} ${CFLAGS} -fPIC -DPIC -S -o ${.TARGET} ${.CURDIR}/crt1_c.c
Stop calling _init/_fini methods from crt1 for dynamic binaries. Do call preinit, init and fini arrays methods from crt1 for static binaries. Mark new crt1 with FreeBSD-specific ELF note. Move some common crt1 code into new MI file ignore_init.c, to reduce duplication. Also, conservatively adjust nearby sources for style. Reviewed by: kan Tested by: andrew (arm), flo (sparc64) MFC after: 3 weeks
2012-03-11 20:04:09 +00:00
sed ${SED_FIX_NOTE} ${.TARGET}
Apply a workaround for a binutils issue with the .note.ABI-tag section generated from lib/csu/common/crtbrand.c (which ultimately ends up in executables and shared libraries, via crt1.o, gcrt1.o or Scrt1.o). For all arches except sparc, gcc emits the section directive for the abitag struct in crtbrand.c with a PROGBITS type. However, newer versions of binutils (after 2.16.90) require the section to be of NOTE type, to guarantee that the .note.ABI-tag section correctly ends up in the first page of the final executable. Unfortunately, there is no clean way to tell gcc to use another section type, so crtbrand.c (or the C files that include it) must be compiled in multiple steps: - Compile the .c file to a .s file. - Edit the .s file to change the 'progbits' type to 'note', for the section directive that defines the .note.ABI-tag section. - Compile the .s file to an object file. These steps are done in the invididual Makefiles for each applicable arch. Reviewed by: kib
2011-01-13 20:44:31 +00:00
Scrt1_c.o: Scrt1_c.s
Rework r234502 to include a modified CFLAGS along with ACFLAGS. On most architectures crt objects are compiled in a multiple-step process so that sed can be run on the generated assembly. As the final step, the C compiler generates an object file from the modified assembly output. Currently this last step uses $CC with only $ACFLAGS. However, for other uses in the tree, $ACFLAGS is meant to include assembly-specific compiler flags that are in addition to $CFLAGS (see default .S.o rules bsd.suffixes.mk). In particular, external toolchains may require additional flags to select a non-default target which will be present in CFLAGS but not ACFLAGS. To support this while still mitigating the issue with CFLAGS described in r234502, include a modified CFLAGS that excludes "-g" when assembling the modified assembly files. Note that normally an assembler ($AS) is used to assemble .s flags to object files (see bsd.suffixes.mk). However, llvm-based toolchains do not currently have a stand-alone assembler. Reviewed by: imp Sponsored by: DARPA / AFRL Differential Revision: https://reviews.freebsd.org/D10085
2017-04-07 19:53:14 +00:00
${CC} ${CFLAGS:N-g} ${ACFLAGS} -c -o ${.TARGET} Scrt1_c.s
Properly support -fPIE by linking PIE binaries with specially-built Scrt1.o instead of crt1.o, since the later is built as non-PIC. Separate i386-elf crt1.c into the pure assembler part and C code, supplying all data extracted by assembler stub as explicit parameters [1]. Hide and localize _start1 symbol used as an interface between asm and C code. In collaboration with: kan Inspired by: PR i386/127387 [1] Prodded and tested by: rdivacky [1] MFC after: 3 weeks
2009-12-02 16:34:20 +00:00
Scrt1.o: Scrt1_c.o crt1_s.o
Reviewed by: imp LDFLAGS is supposed to be given to CC not LD. Define _LDFLAGS as a filtered version of LDFLAGS safe to give to LD
2014-07-26 04:38:09 +00:00
${LD} ${_LDFLAGS} -o Scrt1.o -r crt1_s.o Scrt1_c.o
Ensure the cross assembler, linker and objcopy are used for the build32 stage, just like for the regular world stage. Reviewed by: rodrigc, imp, bapt, emaste MFC after: 1 week Differential Revision: https://reviews.freebsd.org/D2187
2015-04-02 06:58:17 +00:00
${OBJCOPY} --localize-symbol _start1 Scrt1.o
Make profiling work for ELF. gprof now autodetects the format of the executable file, so it will work for both a.out and ELF format files. I have split the object format specific code into separate source files. It's cleaner than it was before, but it's still pretty crufty. Don't cheat on your make world for this update. A lot of things have to be rebuilt for it to work, including the compiler and all of the profiled libraries.
1998-09-07 23:32:00 +00:00
Use bsd.lib.mk here as all other csu Makefiles do. This effectively reverts r124752. There's no reason this should be different. It resulted in needing NO_PIE in the original opt-out NO_PIE commit as this was not using the proper framework. Reported by: peter
2014-08-19 15:30:56 +00:00
.include <bsd.lib.mk>
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