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Marcus Shawcroft 4106101c44 [AArch64] Workaround for Cortex A53 erratum 843419 
Some early revisions of the Cortex-A53 have an erratum (843419).  The
details of the erratum are quite complex and involve dynamic
conditions.  For the purposes of the workaround we have simplified the
static conditions to an ADRP in the last two instructions of a 4KByte
page, followed within four instructions by a load/store dependent on
the ADRP.

This patch adds support to conservatively scan for and workaround
Cortex A53 erratum 843419.  There are two different workaround
strategies used.  The first is to rewrite ADRP instructions which form
part of an erratum sequence with an ADR instruction.  In situations
where the ADR provides insufficient offset the dependent load or store
instruction from the sequence is moved to a stub section and branches
are inserted from the original sequence to the relocated instruction
and back again.

Stub section sizes are rounded up to a multiple of 4096 in order to
ensure that the act of inserting work around stubs does not create
more errata sequences.

Workaround stubs are always inserted into the stub section associated
with the input section containing the erratum sequence.  This ensures
that the fully relocated form of the veneered load store instruction
is available at the point in time when the stub section is written.
 		2015-04-01 13:16:38 +01:00
..
config ChangeLog rotatation and copyright year update 2015-01-02 00:53:45 +10:30
ld-aarch64 [AArch64] Workaround for Cortex A53 erratum 843419 2015-04-01 13:16:38 +01:00
ld-alpha Properly place the NULL STT_FILE symbol revistited 2015-02-18 00:31:52 +10:30
ld-arm [ARM]Update for Tag_ABI_HardFP_use per EABI doc 2015-02-26 14:11:41 +08:00
ld-auto-import ChangeLog rotatation and copyright year update 2015-01-02 00:53:45 +10:30
ld-avr AVR/ld: Use .avr.prop data during linker relaxation. 2015-02-25 23:19:11 +00:00
ld-bootstrap Remove --with-zlib from ld 2015-03-31 03:59:04 -07:00
ld-cdtest ChangeLog rotatation and copyright year update 2015-01-02 00:53:45 +10:30
ld-checks ChangeLog rotatation and copyright year update 2015-01-02 00:53:45 +10:30
ld-cris Strip undefined symbols from .symtab 2015-02-19 13:36:34 +10:30
ld-crx ChangeLog rotatation and copyright year update 2015-01-02 00:53:45 +10:30
ld-cygwin ChangeLog rotatation and copyright year update 2015-01-02 00:53:45 +10:30
ld-d10v ChangeLog rotatation and copyright year update 2015-01-02 00:53:45 +10:30
ld-discard ChangeLog rotatation and copyright year update 2015-01-02 00:53:45 +10:30
ld-elf Properly set sh_info for .rela.plt/rel.plt section 2015-03-30 04:40:49 -07:00
ld-elfcomm ChangeLog rotatation and copyright year update 2015-01-02 00:53:45 +10:30
ld-elfvers ChangeLog rotatation and copyright year update 2015-01-02 00:53:45 +10:30
ld-elfvsb ChangeLog rotatation and copyright year update 2015-01-02 00:53:45 +10:30
ld-elfweak ChangeLog rotatation and copyright year update 2015-01-02 00:53:45 +10:30
ld-fastcall ChangeLog rotatation and copyright year update 2015-01-02 00:53:45 +10:30
ld-frv ChangeLog rotatation and copyright year update 2015-01-02 00:53:45 +10:30
ld-gc Garbage collecting debug sections 2015-03-25 20:42:00 +10:30
ld-h8300 ChangeLog rotatation and copyright year update 2015-01-02 00:53:45 +10:30
ld-i386 Add extern_protected_data and set it for x86 2015-03-05 06:34:53 -08:00
ld-ia64 Strip undefined symbols from .symtab 2015-02-19 13:36:34 +10:30
ld-ifunc ChangeLog rotatation and copyright year update 2015-01-02 00:53:45 +10:30
ld-libs ChangeLog rotatation and copyright year update 2015-01-02 00:53:45 +10:30
ld-linkonce ChangeLog rotatation and copyright year update 2015-01-02 00:53:45 +10:30
ld-m68hc11 ChangeLog rotatation and copyright year update 2015-01-02 00:53:45 +10:30
ld-m68k ChangeLog rotatation and copyright year update 2015-01-02 00:53:45 +10:30
ld-mep ChangeLog rotatation and copyright year update 2015-01-02 00:53:45 +10:30
ld-metag ChangeLog rotatation and copyright year update 2015-01-02 00:53:45 +10:30
ld-mips-elf Strip undefined symbols from .symtab 2015-02-19 13:36:34 +10:30
ld-misc ChangeLog rotatation and copyright year update 2015-01-02 00:53:45 +10:30
ld-mmix Strip undefined symbols from .symtab 2015-02-19 13:36:34 +10:30
ld-mn10300 ChangeLog rotatation and copyright year update 2015-01-02 00:53:45 +10:30
ld-nds32 ChangeLog rotatation and copyright year update 2015-01-02 00:53:45 +10:30
ld-nios2 Nios II CALL26 linker relaxation 2014-01-30 17:47:07 -08:00
ld-pe ChangeLog rotatation and copyright year update 2015-01-02 00:53:45 +10:30
ld-pie ChangeLog rotatation and copyright year update 2015-01-02 00:53:45 +10:30
ld-plugin Add a testcase for PR ld/17973 2015-02-14 06:26:20 -08:00
ld-powerpc Fix ppc32 synthetic symbols when __tls_get_addr_opt stub is generated 2015-03-11 18:04:25 +10:30
ld-s390 Properly place the NULL STT_FILE symbol revistited 2015-02-18 00:31:52 +10:30
ld-scripts Allow symbols in MEMORY region specification 2015-01-28 15:06:48 +10:30
ld-selective ChangeLog rotatation and copyright year update 2015-01-02 00:53:45 +10:30
ld-sh [SH] Fix clrs, sets, pref insn arch memberships. 2015-02-25 21:26:59 +01:00
ld-shared ChangeLog rotatation and copyright year update 2015-01-02 00:53:45 +10:30
ld-size ChangeLog rotatation and copyright year update 2015-01-02 00:53:45 +10:30
ld-sparc Pad only text sections at end by default 2015-02-28 22:26:56 +10:30
ld-spu ChangeLog rotatation and copyright year update 2015-01-02 00:53:45 +10:30
ld-srec ChangeLog rotatation and copyright year update 2015-01-02 00:53:45 +10:30
ld-tic6x Properly place the NULL STT_FILE symbol revistited 2015-02-18 00:31:52 +10:30
ld-tilegx Pad only text sections at end by default 2015-02-28 22:26:56 +10:30
ld-tilepro Pad only text sections at end by default 2015-02-28 22:26:56 +10:30
ld-undefined ChangeLog rotatation and copyright year update 2015-01-02 00:53:45 +10:30
ld-unique ChangeLog rotatation and copyright year update 2015-01-02 00:53:45 +10:30
ld-v850 ChangeLog rotatation and copyright year update 2015-01-02 00:53:45 +10:30
ld-vax-elf ChangeLog rotatation and copyright year update 2015-01-02 00:53:45 +10:30
ld-versados ChangeLog rotatation and copyright year update 2015-01-02 00:53:45 +10:30
ld-visium ChangeLog rotatation and copyright year update 2015-01-02 00:53:45 +10:30
ld-vxworks ChangeLog rotatation and copyright year update 2015-01-02 00:53:45 +10:30
ld-x86-64 Add a testcase for PR ld/18176 2015-04-01 04:24:24 -07:00
ld-xc16x ChangeLog rotatation and copyright year update 2015-01-02 00:53:45 +10:30
ld-xstormy16 ChangeLog rotatation and copyright year update 2015-01-02 00:53:45 +10:30
ld-xtensa ChangeLog rotatation and copyright year update 2015-01-02 00:53:45 +10:30
lib Move -rc before $aropts 2015-01-29 11:11:03 -08:00
ChangeLog [AArch64] Workaround for Cortex A53 erratum 843419 2015-04-01 13:16:38 +01:00
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ChangeLog-2013 New Year - binutils ChangeLog rotation 2014-01-08 05:32:12 -08:00
ChangeLog-2014 ChangeLog rotatation and copyright year update 2015-01-02 00:53:45 +10:30
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