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Iain Sandoe 179c7ef523 [Darwin] Some TLC for older Darwin versions. 
The library handling and some of the options for creating the crts for
the older PPC Darwin versions had bit-rotted somewhat.  This adjusts the
build criteria for the crts to avoid newer ld64 versions warnings about
mismatches in build and object versions.

Added to some of the comments that it's documented why the specs are as
they are.

2019-07-03  Iain Sandoe  <iain@sandoe.co.uk>

gcc/

	* config/darwin.h (REAL_LIBGCC_SPEC): Adjust for earlier Darwin.
	(STARTFILE_SPEC): Split crt3 into a separate spec.
	(DARWIN_EXTRA_SPECS): Add crt2 and crt3 spec.
	(DARWIN_CRT2_SPEC): New.
	(DARWIN_CRT3_SPEC): New.
	(MIN_LD64_OMIT_STUBS): Revise to 62.1.
	* config/rs6000/darwin.h (DARWIN_CRT2_SPEC): Revise conditions.
	(DARWIN_CRT3_SPEC): New.

libgcc/

2019-07-03  Iain Sandoe  <iain@sandoe.co.uk>

	* config.host (powerpc-*-darwin*,powerpc64-*-darwin*): Revise crt
	list.
	* config/rs6000/t-darwin: Build crt3_2 for older systems.  Revise
	mmacosx-version-min for crts to run across all system versions.
	* config/rs6000/t-darwin64 (LIB2ADD): Remove.
	* config/t-darwin: Revise mmacosx-version-min for crts to run across
	system versions >= 10.4.

From-SVN: r273016
 		2019-07-03 18:36:28 +00:00
..
config [Darwin] Some TLC for older Darwin versions. 2019-07-03 18:36:28 +00:00
soft-fp soft-fp: Update soft-fp from glibc 2019-05-17 07:37:39 -07:00
ChangeLog [Darwin] Some TLC for older Darwin versions. 2019-07-03 18:36:28 +00:00
Makefile.in Rename SINGE_VALUE to TOPN_VALUES counters. 2019-07-03 12:42:23 +00:00
config.host [Darwin] Some TLC for older Darwin versions. 2019-07-03 18:36:28 +00:00
config.in re PR debug/83917 (with -mcall-ms2sysv-xlogues, stepping into x86 tail-call restore stub gives bad backtrace) 2018-02-28 09:59:15 +01:00
configure Add --disable-tm-clone-registry libgcc configure option. 2019-06-27 16:41:03 -07:00
configure.ac Add --disable-tm-clone-registry libgcc configure option. 2019-06-27 16:41:03 -07:00
crtstuff.c Update copyright years. 2019-01-01 13:31:55 +01:00
dfp-bit.c Update copyright years. 2019-01-01 13:31:55 +01:00
dfp-bit.h Update copyright years. 2019-01-01 13:31:55 +01:00
divmod.c Update copyright years. 2019-01-01 13:31:55 +01:00
empty.mk
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emutls.c Update copyright years. 2019-01-01 13:31:55 +01:00
enable-execute-stack-empty.c
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enable-execute-stack-mprotect.c Update copyright years. 2019-01-01 13:31:55 +01:00
find-symver.awk Update copyright years. 2019-01-01 13:31:55 +01:00
fixed-bit.c Update copyright years. 2019-01-01 13:31:55 +01:00
fixed-bit.h Update copyright years. 2019-01-01 13:31:55 +01:00
fixed-obj.mk
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floatunsidf.c
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floatunsisf.c
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floatunsitf.c
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floatunsixf.c
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fp-bit.c Update copyright years. 2019-01-01 13:31:55 +01:00
fp-bit.h Update copyright years. 2019-01-01 13:31:55 +01:00
gbl-ctors.h Update copyright years. 2019-01-01 13:31:55 +01:00
gcov.h Update copyright years. 2019-01-01 13:31:55 +01:00
gen-fixed.sh
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generic-morestack-thread.c PR other/16615 [1/5] 2019-01-09 16:37:45 -05:00
generic-morestack.c PR other/16615 [1/5] 2019-01-09 16:37:45 -05:00
generic-morestack.h Update copyright years. 2019-01-01 13:31:55 +01:00
gstdint.h
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gthr-posix.h PR c/88546 - Copy attribute unusable for weakrefs 2019-01-04 17:57:30 -07:00
gthr-single.h Update copyright years. 2019-01-01 13:31:55 +01:00
gthr.h Update copyright years. 2019-01-01 13:31:55 +01:00
libgcc-std.ver.in Update copyright years. 2019-01-01 13:31:55 +01:00
libgcc2.c extend.texi (__clear_cache): Correct signature. 2019-02-21 16:23:12 -07:00
libgcc2.h extend.texi (__clear_cache): Correct signature. 2019-02-21 16:23:12 -07:00
libgcov-driver-system.c Remove quite obvious dead assignments. 2019-06-27 10:25:21 +00:00
libgcov-driver.c Remove indirect call top N counter type. 2019-06-07 06:41:58 +00:00
libgcov-interface.c Update copyright years. 2019-01-01 13:31:55 +01:00
libgcov-merge.c Rename SINGE_VALUE to TOPN_VALUES counters. 2019-07-03 12:42:23 +00:00
libgcov-profiler.c Rename SINGE_VALUE to TOPN_VALUES counters. 2019-07-03 12:42:23 +00:00
libgcov-util.c Rename SINGE_VALUE to TOPN_VALUES counters. 2019-07-03 12:42:23 +00:00
libgcov.h Rename SINGE_VALUE to TOPN_VALUES counters. 2019-07-03 12:42:23 +00:00
memcmp.c
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memcpy.c
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memmove.c
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memset.c
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mkheader.sh Update copyright years. 2019-01-01 13:31:55 +01:00
mkmap-flat.awk Update copyright years. 2019-01-01 13:31:55 +01:00
mkmap-symver.awk PR other/16615 [1/5] 2019-01-09 16:37:45 -05:00
offloadstuff.c Update copyright years. 2019-01-01 13:31:55 +01:00
shared-object.mk
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siditi-object.mk
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static-object.mk
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sync.c Update copyright years. 2019-01-01 13:31:55 +01:00
udivhi3.c Update copyright years. 2019-01-01 13:31:55 +01:00
udivmod.c Update copyright years. 2019-01-01 13:31:55 +01:00
udivmodhi4.c Update copyright years. 2019-01-01 13:31:55 +01:00
udivmodsi4.c Update copyright years. 2019-01-01 13:31:55 +01:00
unwind-arm-common.inc Update copyright years. 2019-01-01 13:31:55 +01:00
unwind-c.c re PR target/89093 (C++ exception handling clobbers d8 VFP register) 2019-04-23 12:03:41 +02:00
unwind-compat.c Update copyright years. 2019-01-01 13:31:55 +01:00
unwind-compat.h Update copyright years. 2019-01-01 13:31:55 +01:00
unwind-dw2-fde-compat.c Update copyright years. 2019-01-01 13:31:55 +01:00
unwind-dw2-fde-dip.c Update copyright years. 2019-01-01 13:31:55 +01:00
unwind-dw2-fde.c [PATCH 3/3][GCC][AARCH64] Add support for pointer authentication B key 2019-05-29 09:22:17 +00:00
unwind-dw2-fde.h Update copyright years. 2019-01-01 13:31:55 +01:00
unwind-dw2.c [PATCH 3/3][GCC][AARCH64] Add support for pointer authentication B key 2019-05-29 09:22:17 +00:00
unwind-dw2.h Update copyright years. 2019-01-01 13:31:55 +01:00
unwind-generic.h Update copyright years. 2019-01-01 13:31:55 +01:00
unwind-pe.h Update copyright years. 2019-01-01 13:31:55 +01:00
unwind-seh.c Update copyright years. 2019-01-01 13:31:55 +01:00
unwind-sjlj.c Update copyright years. 2019-01-01 13:31:55 +01:00
unwind.inc Update copyright years. 2019-01-01 13:31:55 +01:00
vtv_end.c Update copyright years. 2019-01-01 13:31:55 +01:00
vtv_end_preinit.c Update copyright years. 2019-01-01 13:31:55 +01:00
vtv_start.c Update copyright years. 2019-01-01 13:31:55 +01:00
vtv_start_preinit.c Update copyright years. 2019-01-01 13:31:55 +01:00