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7b6b882fe4
freebsd-dev/lib
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Justin Hibbits 7b6b882fe4 [PowerPC] enable atomic.c in compiler_rt and do not check and forces 
lock/lock_free decisions in compiled time

Summary:
Enables atomic.c in compiler_rt and forces clang to not emit a call for runtime
decision about lock/lock_free.  At compiling time, if clang can't decide if
atomic operation can be lock free, it emits calls to external functions  like
`__atomic_is_lock_free`, `__c11_atomic_is_lock_free` and
`__atomic_always_lock_free`, postponing decision to a runtime check.  According
to LLVM code documentation, the mechanism exists due to differences between
x86_64 processors that can't be decided at runtime.

On PowerPC and PowerPCSPE (32 bits), we already know in advance it can't be lock
free, so we force the decision at compile time and avoid having to implement it
in an external library.

This patch was made after 32 bit users testing the PowePC32 bit ISO reported
llvm could not be compiled with in-base llvm due to `__atomic_load8` not
implemented.

Submitted by:	alfredo.junior_eldorado.org.br
Reviewed by:	jhibbits, dim

Differential Revision:	https://reviews.freebsd.org/D22549
2019-12-26 23:06:28 +00:00
..
atf Update Makefile.depend files 2019-12-11 17:37:53 +00:00
clang Merge llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and openmp 2019-12-22 11:50:44 +00:00
csu csu: Fix dynamiclib/init_test:jcr_test on !HAVE_CTORS archs 2019-11-08 14:28:39 +00:00
geom gpart(8): ms-basic-data is used for exFAT on GPT 2019-12-24 01:47:08 +00:00
googletest Another round of attempting to squelch -Wdeprecated-declarations, which 2019-09-17 06:07:08 +00:00
lib80211 Update Makefile.depend files 2019-12-11 17:37:53 +00:00
libalias Update Makefile.depend files 2019-12-11 17:37:53 +00:00
libarchive Update Makefile.depend files 2019-12-11 17:37:53 +00:00
libauditd pkgbase: Create a FreeBSD-utilities package and make it the default one 2019-09-05 14:15:47 +00:00
libbe Update Makefile.depend files 2019-12-11 17:37:53 +00:00
libbearssl Add libbearssl 2019-02-26 05:59:22 +00:00
libbegemot Update Makefile.depend files 2019-12-11 17:37:53 +00:00
libblacklist Update Makefile.depend files 2019-12-11 17:37:53 +00:00
libblocksruntime Move all sources from the llvm project into contrib/llvm-project. 2019-12-20 19:53:05 +00:00
libbluetooth Update Makefile.depend files 2019-12-11 17:37:53 +00:00
libbsdstat Update Makefile.depend files 2019-12-11 17:37:53 +00:00
libbsm Update Makefile.depend files 2019-12-11 17:37:53 +00:00
libbsnmp Update dirdeps.mk and gendirdeps.mk 2019-12-11 17:38:15 +00:00
libbz2 Update Makefile.depend files 2019-12-11 17:37:53 +00:00
libc Move all sources from the llvm project into contrib/llvm-project. 2019-12-20 19:53:05 +00:00
libc_nonshared
libc++ Move all sources from the llvm project into contrib/llvm-project. 2019-12-20 19:53:05 +00:00
libc++experimental Move all sources from the llvm project into contrib/llvm-project. 2019-12-20 19:53:05 +00:00
libcalendar Update Makefile.depend files 2019-12-11 17:37:53 +00:00
libcam Update Makefile.depend files 2019-12-11 17:37:53 +00:00
libcapsicum pkgbase: Create a FreeBSD-utilities package and make it the default one 2019-09-05 14:15:47 +00:00
libcasper Update Makefile.depend files 2019-12-11 17:37:53 +00:00
libclang_rt Merge llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and openmp 2019-12-22 11:50:44 +00:00
libcom_err Update Makefile.depend files 2019-12-11 17:37:53 +00:00
libcompat ftime appeared in 7th Edition Unix to replace gtime. 2018-10-28 02:58:15 +00:00
libcompiler_rt [PowerPC] enable atomic.c in compiler_rt and do not check and forces 2019-12-26 23:06:28 +00:00
libcrypt Update Makefile.depend files 2019-12-11 17:37:53 +00:00
libcuse Update Makefile.depend files 2019-12-11 17:37:53 +00:00
libcxxrt Update Makefile.depend files 2019-12-11 17:37:53 +00:00
libdevctl Update Makefile.depend files 2019-12-11 17:37:53 +00:00
libdevdctl libdevdctl: g++9 avoid Wdeprecated-copy 2019-12-21 02:44:26 +00:00
libdevinfo Update Makefile.depend files 2019-12-11 17:37:53 +00:00
libdevstat Update Makefile.depend files 2019-12-11 17:37:53 +00:00
libdl Add libdl to clibs package 2018-03-29 19:43:29 +00:00
libdpv Update Makefile.depend files 2019-12-11 17:37:53 +00:00
libdwarf Update Makefile.depend files 2019-12-11 17:37:53 +00:00
libedit Update Makefile.depend files 2019-12-11 17:37:53 +00:00
libefivar Update Makefile.depend files 2019-12-11 17:37:53 +00:00
libelf Update Makefile.depend files 2019-12-11 17:37:53 +00:00
libelftc Update ELF Tool Chain to upstream r3769 2019-12-05 13:20:15 +00:00
libevent Update Makefile.depend files 2019-12-11 17:37:53 +00:00
libexecinfo Move all sources from the llvm project into contrib/llvm-project. 2019-12-20 19:53:05 +00:00
libexpat Update Makefile.depend files 2019-12-11 17:37:53 +00:00
libfetch Update Makefile.depend files 2019-12-11 17:37:53 +00:00
libfigpar Update Makefile.depend files 2019-12-11 17:37:53 +00:00
libgcc_eh Move all sources from the llvm project into contrib/llvm-project. 2019-12-20 19:53:05 +00:00
libgcc_s Fix LLVM libunwnwind _Unwind_Backtrace symbol version for ARM. 2019-12-16 14:08:49 +00:00
libgeom Update Makefile.depend files 2019-12-11 17:37:53 +00:00
libgpio Update Makefile.depend files 2019-12-11 17:37:53 +00:00
libgssapi Update Makefile.depend files 2019-12-11 17:37:53 +00:00
libiconv_modules libiconv: correct undefined behavior. 2018-07-08 23:22:04 +00:00
libifconfig Make libifconfig INTERNALLIB 2019-02-25 18:22:20 +00:00
libipsec Update Makefile.depend files 2019-12-11 17:37:53 +00:00
libipt Update Intel Processor Trace decoder library. 2019-10-10 12:46:34 +00:00
libjail Update Makefile.depend files 2019-12-11 17:37:53 +00:00
libkiconv pkgbase: Put a lot of binaries and lib in FreeBSD-runtime 2019-09-05 14:13:08 +00:00
libkvm Update Makefile.depend files 2019-12-11 17:37:53 +00:00
libldns Update Makefile.depend files 2019-12-11 17:37:53 +00:00
liblzma Update Makefile.depend files 2019-12-11 17:37:53 +00:00
libmagic Tweaks for DIRDEPS_BUILD 2019-12-19 02:40:04 +00:00
libmd Update Makefile.depend files 2019-12-11 17:37:53 +00:00
libmemstat Optimize fast path allocations by storing bucket headers in the per-cpu 2019-12-25 20:50:53 +00:00
libmilter Update Makefile.depend files 2019-12-11 17:37:53 +00:00
libmp Update Makefile.depend files 2019-12-11 17:37:53 +00:00
libmt Update Makefile.depend files 2019-12-11 17:37:53 +00:00
libnetbsd Make timespecadd(3) and friends public 2018-07-30 15:46:40 +00:00
libnetgraph Update Makefile.depend files 2019-12-11 17:37:53 +00:00
libngatm Update Makefile.depend files 2019-12-11 17:37:53 +00:00
libnv Update Makefile.depend files 2019-12-11 17:37:53 +00:00
libomp Move all sources from the llvm project into contrib/llvm-project. 2019-12-20 19:53:05 +00:00
libopenbsd Allow bootstrapping libopenbsd on Linux 2018-12-05 10:58:02 +00:00
libopencsd Update Makefile.depend files 2019-12-11 17:37:53 +00:00
libopie Update Makefile.depend files 2019-12-11 17:37:53 +00:00
libpam Update Makefile.depend files 2019-12-11 17:37:53 +00:00
libpathconv
libpcap MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
libpe
libpjdlog pkgbase: Create a FreeBSD-utilities package and make it the default one 2019-09-05 14:15:47 +00:00
libpmc Tweaks for DIRDEPS_BUILD 2019-12-19 02:40:04 +00:00
libpmcstat pmc(3)/hwpmc(4): update supported Intel processors to rely fully on the 2018-05-26 19:29:19 +00:00
libproc Update Makefile.depend files 2019-12-11 17:37:53 +00:00
libprocstat Update Makefile.depend files 2019-12-11 17:37:53 +00:00
libradius libradius: Rip out dubious use of srandomdev(3)+random(3) 2019-12-13 04:55:17 +00:00
libregex Further normalize copyright notices 2019-09-26 16:19:22 +00:00
librpcsec_gss
librpcsvc Update Makefile.depend files 2019-12-11 17:37:53 +00:00
librss Update Makefile.depend files 2019-12-11 17:37:53 +00:00
librt pkgbase: Create a FreeBSD-utilities package and make it the default one 2019-09-05 14:15:47 +00:00
librtld_db Update Makefile.depend files 2019-12-11 17:37:53 +00:00
libsbuf Update Makefile.depend files 2019-12-11 17:37:53 +00:00
libsdp Update Makefile.depend files 2019-12-11 17:37:53 +00:00
libsecureboot Avoid unused vars when VE_ECDSA_HASH_AGAIN undefined 2019-12-20 21:56:28 +00:00
libsm
libsmb Move nsmb.conf to lib/libsmb/ 2018-09-20 09:31:27 +00:00
libsmdb
libsmutil
libsqlite3 Update Makefile.depend files 2019-12-11 17:37:53 +00:00
libstats Make use of the stats(3) framework in the TCP stack. 2019-12-02 20:58:04 +00:00
libstdbuf
libstdthreads Update Makefile.depend files 2019-12-11 17:37:53 +00:00
libsysdecode Update Makefile.depend files 2019-12-11 17:37:53 +00:00
libtacplus libtacplus: Remove bogus srandomdev+random 2019-12-13 05:11:34 +00:00
libtelnet
libthr Update Makefile.depend files 2019-12-11 17:37:53 +00:00
libthread_db Update Makefile.depend files 2019-12-11 17:37:53 +00:00
libucl Update Makefile.depend files 2019-12-11 17:37:53 +00:00
libufs Update Makefile.depend files 2019-12-11 17:37:53 +00:00
libugidfw Update Makefile.depend files 2019-12-11 17:37:53 +00:00
libulog Update Makefile.depend files 2019-12-11 17:37:53 +00:00
libunbound Update Makefile for 1.8.0, apologies for the breakage. 2018-10-10 08:19:11 +00:00
libusb Update Makefile.depend files 2019-12-11 17:37:53 +00:00
libusbhid Update Makefile.depend files 2019-12-11 17:37:53 +00:00
libutil Update Makefile.depend files 2019-12-11 17:37:53 +00:00
libveriexec Update Makefile.depend files 2019-12-11 17:37:53 +00:00
libvgl Update Makefile.depend files 2019-12-11 17:37:53 +00:00
libvmmapi Forgotten to remove the previous if statement in commit r355838. 2019-12-17 01:37:02 +00:00
libwrap Update Makefile.depend files 2019-12-11 17:37:53 +00:00
libxo Allow proper builds of libxo's CSV encoder: 2019-12-16 22:05:03 +00:00
liby liby: rewrite yyerror.h 2018-06-17 18:05:27 +00:00
libypclnt Update Makefile.depend files 2019-12-11 17:37:53 +00:00
libz Update Makefile.depend files 2019-12-11 17:37:53 +00:00
libzstd Update Makefile.depend files 2019-12-11 17:37:53 +00:00
msun [PowerPC] Fix SPE floating point environment manipulation 2019-12-12 17:12:18 +00:00
ncurses Update Makefile.depend files 2019-12-11 17:37:53 +00:00
ofed Update Makefile.depend files 2019-12-11 17:37:53 +00:00
tests
Makefile libclang_rt: enable on powerpc* 2019-11-23 19:35:09 +00:00
Makefile.inc