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* Consolidate duplicated logic in csu Makefiles to lib/csu/Makefile.inc.John Baldwin2020-07-031-30/+2
| | | | | | | | | Reviewed by: kib Sponsored by: DARPA Differential Revision: https://reviews.freebsd.org/D25537 Notes: svn path=/head/; revision=362902
* Remove the sed hack for ABI tag notes.John Baldwin2020-06-152-24/+15
| | | | | | | | | | | | | | | | | | The ELF notes compiled in C were placed in a section with the wrong type (SHT_PROGBITS instead of SHT_NOTE). Previously, sed was used on the generated assembly to rewrite the section type. Instead, write the notes in assembly which permits setting the correct section type directly. While here, move inline assembly entry points out of C and into assembly for aarch64, arm, and riscv. Reviewed by: kib Tested on: amd64 (cirrus-ci), riscv64 Sponsored by: DARPA Differential Revision: https://reviews.freebsd.org/D25211 Notes: svn path=/head/; revision=362203
* powerpc64/csu: Rename dummy asm file to force use of 'cc'Justin Hibbits2020-01-291-2/+2
| | | | | | | | | | | | | Implicit make rules build .S asm files with the compiler, rather than the assembler. r356889 removed GNU as from the build for powerpc targets, causing '.s' asm files to fail to build, due to a missing 'as'. Rename the one dummy asm file we have to a '.S' to force the implicit rules to build with the compiler rather than the assembler. Reported by: Francis Little Notes: svn path=/head/; revision=357242
* [PPC64] Add ifunc support in libcsuLeandro Lupori2019-09-123-3/+78
| | | | | | | | | | | | When ifuncs are used in statically linked binaries, the C runtime must perform the needed dynamic relocations, to make calls to ifuncs work correctly. Reviewed by: jhibbits Differential Revision: https://reviews.freebsd.org/D21070 Notes: svn path=/head/; revision=352255
* Create crtsavres.o for powerpc buildsJustin Hibbits2019-01-121-2/+6
| | | | | | | | | | | | | | | | Summary: GCC expects to link in a crtsavres.o on powerpc platforms. On powerpc64 this is an empty file, but on powerpc and powerpcspe this does contain some save/restore functions, which may not actually be necessary for newer modern GCC and clang. This appeases the in-tree gcc, though, and is needed in order to switch to the BSD CRTRBEGIN. PR: 233751 Reviewed By: andrew Differential Revision: https://reviews.freebsd.org/D18826 Notes: svn path=/head/; revision=342974
* Implement a BSD licensed crtbegin/crtendAndrew Turner2018-10-251-0/+33
| | | | | | | | | | | | | | | | | These are needed for .ctors/.dtors and .jcr handling. The former needs all the function pointers to be called in the correct order from the .init/.fini section. The latter just needs to call a gcj specific function if it exists with a pointer to the start of the .jcr section. This is currently disabled until __dso_handle support is added. Reviewed by: emaste MFC after: 1 month Sponsored by: DARPA, AFRL Differential Revision: https://reviews.freebsd.org/D17587 Notes: svn path=/head/; revision=339738
* Process irelocs for statically linked binaries from crt1 on x86.Konstantin Belousov2018-10-131-1/+1
| | | | | | | | | | | | | 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 Notes: svn path=/head/; revision=339351
* lib: further adoption of SPDX licensing ID tags.Pedro F. Giffuni2017-11-261-0/+2
| | | | | | | | | | | | | | | Mainly focus on files that use BSD 2-Clause license, however the tool I was using mis-identified many licenses so this was mostly a manual - error prone - task. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts. Notes: svn path=/head/; revision=326219
* Update several more URLsEitan Adler2017-10-291-1/+1
| | | | | | | | - Primarily http -> https - Primarily FreeBSD project URLs Notes: svn path=/head/; revision=325096
* Rework r234502 to include a modified CFLAGS along with ACFLAGS.John Baldwin2017-04-071-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | 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 Notes: svn path=/head/; revision=316620
* Clang in base now supports -mlongcall, so remove this hackJustin Hibbits2017-03-071-10/+0
| | | | | | | | PR: 215947 MFC after: 2 weeks Notes: svn path=/head/; revision=314826
* Use SRCTOP-relative paths and .CURDIR with :H instead of ".." specified pathsEnji Cooper2017-01-201-3/+3
| | | | | | | | | | This implifies pathing in make/displayed output MFC after: 3 weeks Sponsored by: Dell EMC Isilon Notes: svn path=/head/; revision=312455
* Don't reset CC away from full-pathed gcc.Bryan Drewery2016-03-241-0/+3
| | | | | | | | | This was breaking the build when using CROSS_TOOLCHAIN=powerpc64-gcc Sponsored by: EMC / Isilon Storage Division Notes: svn path=/head/; revision=297249
* Remove historical GNUC testEd Maste2015-12-081-6/+0
| | | | | | | | | | | | The requirement is for a GCC-compatible compiler and not necessarily GCC itself. However, we currently expect any compiler used for building the whole of FreeBSD to be GCC-compatible and many things will break if not; there's no longer a need to have an explicit test for this in csu. Sponsored by: The FreeBSD Foundation Notes: svn path=/head/; revision=292000
* Provide support for ELFv2 userland if using a newer compiler (recent clangNathan Whitehorn2015-12-031-6/+31
| | | | | | | or gcc) and binutils >= 2.24. Not enabled by default. Notes: svn path=/head/; revision=291668
* META_MODE: Remove DEP_MACHINE from Makefile.depend files.Bryan Drewery2015-09-251-2/+0
| | | | | | | | | This has not been needed since r246865 in projects/bmake. Sponsored by: EMC / Isilon Storage Division Notes: svn path=/head/; revision=288228
* META_MODE: Remove DEP_RELDIR from Makefile.depend files.Bryan Drewery2015-09-251-2/+0
| | | | | | | | | This has not been needed since r284171 in projects/bmake. Sponsored by: EMC / Isilon Storage Division Notes: svn path=/head/; revision=288226
* Fix installation of 32bit libraries after r288074.Bryan Drewery2015-09-211-0/+2
| | | | | | | | | | | | | | 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 Notes: svn path=/head/; revision=288076
* Replace realinstall: and META_MODE staging hacks with FILES mechanism.Bryan Drewery2015-09-211-5/+5
| | | | | | | | | | | | | 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 Notes: svn path=/head/; revision=288074
* Add META_MODE support.Simon J. Gerraty2015-06-131-0/+16
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | Off by default, build behaves normally. WITH_META_MODE we get auto objdir creation, the ability to start build from anywhere in the tree. Still need to add real targets under targets/ to build packages. Differential Revision: D2796 Reviewed by: brooks imp Notes: svn path=/head/; revision=284345
| * Merge sync of headSimon J. Gerraty2015-05-271-0/+7
| |\ | |/ |/| | | Notes: svn path=/projects/bmake/; revision=283595
| * Sync with HEAD.David E. O'Brien2013-02-081-4/+1
| |\ | | | | | | | | | Notes: svn path=/projects/bmake/; revision=246555
| * | Sync from headSimon J. Gerraty2012-11-041-0/+15
| | | | | | | | | | | | Notes: svn path=/projects/bmake/; revision=242545
* | | Add a comment explaining why gcc is needed.Justin Hibbits2015-02-061-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | X-MFC-With: 278231 MFC after: 2 weeks Notes: svn path=/head/; revision=278305
* | | powerpc64 csu needs to be built by gcc, so enforce that.Justin Hibbits2015-02-051-0/+3
| |/ |/| | | | | | | | | | | | | | | With this change, world is one step closer to being clang-able. MFC after: 2 weeks Notes: svn path=/head/; revision=278231
* | Only assign the environ in the startup code when environ is NULL.Konstantin Belousov2013-01-071-4/+1
|/ | | | | | | | | | | | | | | | | Preloaded library could have changed the environment, and unconditional assingment to the environ undoes the customization. The binaries needs to be recompiled to get the fix. Move the common code to set up environ and __progname into the helper. Note that ia64 possibly not fixed, due to it still using old csu. Reported and tested by: John Hein <jhein@symmetricom.com> Reviewed by: kan, scf Approved by: secteam (simon) MFC after: 2 weeks Notes: svn path=/head/; revision=245133
* After r217375, some startup objects under lib/csu are built in a specialDimitry Andric2012-04-201-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | way: first they are compiled to assembly, then some sed'ing is done on the assembly, and lastly the assembly is compiled to an object file. This last step is done using ${CC}, and not ${AS}, because when the compiler is clang, it outputs directives that are too advanced for our old gas. So we use clang's integrated assembler instead. (When the compiler is gcc, it just calls gas, and nothing is different, except one extra fork.) However, in the .s to .o rules in lib/csu/$ARCH/Makefile, I still passed CFLAGS to the compiler, instead of ACFLAGS, which are specifically for compiling .s files. In case you are using '-g' for debug info anywhere in your CFLAGS, it causes the .s files to already contain debug information in the assembly itself. In the next step, the .s files are also compiled using '-g', and if the compiler is clang, it complains: "error: input can't have .file dwarf directives when -g is used to generate dwarf debug info for assembly code". Fix this by using ${ACFLAGS} for compiling the .s files instead. Reported by: jasone MFC after: 1 week Notes: svn path=/head/; revision=234502
* Work around a binutils bug on powerpc64 where the TOC would not beNathan Whitehorn2012-03-131-1/+2
| | | | | | | | | | | | | properly reloaded when calling _fini() in large binaries with multiple TOC sections (e.g. GCC), leading to a segmentation fault. Adding -mlongcall to crt1 flags causes the compiler to emit explicit TOC load instructions for all function calls, including _fini(). Reviewed by: kib Pointy hat to: kib Notes: svn path=/head/; revision=232932
* Stop calling _init/_fini methods from crt1 for dynamic binaries. DoKonstantin Belousov2012-03-112-23/+9
| | | | | | | | | | | | | | | | 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 Notes: svn path=/head/; revision=232832
* Build Scrt.o on powerpc64. Its introduction on other platforms got lostNathan Whitehorn2011-06-271-4/+10
| | | | | | | during the period of time the powerpc64 port was on a project branch. Notes: svn path=/head/; revision=223599
* Turn off default generation of userland dot symbols on powerpc64 now thatNathan Whitehorn2011-02-181-8/+6
| | | | | | | | we have a binutils that supports it. Kernel dot symbols remain on to assist DDB. Notes: svn path=/head/; revision=218824
* Mark csu on PowerPC as not requiring executable stack.Konstantin Belousov2011-01-142-0/+4
| | | | | | | Reviewed and tested by: nwhitehorn Notes: svn path=/head/; revision=217399
* Apply a workaround for a binutils issue with the .note.ABI-tag sectionDimitry Andric2011-01-131-2/+17
| | | | | | | | | | | | | | | | | | | | | | | | | | | 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 Notes: svn path=/head/; revision=217375
* Let all .c and .S files under lib/csu consistently use the __FBSDID()Dimitry Andric2010-12-093-10/+10
| | | | | | | | macro for identification, instead of several different hand-rolled variants (plain .ident, .ascii, etc). Notes: svn path=/head/; revision=216338
* C startup support for 64-bit PowerPC.Nathan Whitehorn2010-07-104-0/+248
Obtained from: projects/ppc64 Notes: svn path=/head/; revision=209869
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