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| author | Kyrylo Tkachov <kyrylo.tkachov@arm.com> | 2014-10-10 12:31:51 +0000 |
|---|---|---|
| committer | Kyrylo Tkachov <ktkachov@gcc.gnu.org> | 2014-10-10 12:31:51 +0000 |
| commit | 5e396da6b43aa2ba1fc30df73b8beb257bfd081d (patch) | |
| tree | 366c4e2d8d4f0378048b202f73cc4c8523cbc051 /gcc/doc | |
| parent | 75cf149453542f0107a957624b27e8c3cce106fa (diff) | |
| download | gcc-5e396da6b43aa2ba1fc30df73b8beb257bfd081d.zip gcc-5e396da6b43aa2ba1fc30df73b8beb257bfd081d.tar.gz gcc-5e396da6b43aa2ba1fc30df73b8beb257bfd081d.tar.bz2 | |
[AArch64] Add --enable-fix-cortex-a53-835769 configure-time option
* configure.ac: Add --enable-fix-cortex-a53-835769 option.
* configure: Regenerate.
* config/aarch64/aarch64.c (aarch64_override_options): Handle
TARGET_FIX_ERR_A53_835769_DEFAULT.
* config/aarch64/aarch64.opt (mfix-cortex-a53-835769): Set Init
value to 2.
* doc/install.texi (aarch64*-*-*): Document
new --enable-fix-cortex-a53-835769 option.
From-SVN: r216076
Diffstat (limited to 'gcc/doc')
| -rw-r--r-- | gcc/doc/install.texi | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/gcc/doc/install.texi b/gcc/doc/install.texi index 75ac9a6..3df78ff 100644 --- a/gcc/doc/install.texi +++ b/gcc/doc/install.texi @@ -3762,6 +3762,16 @@ Binutils pre 2.24 does not have support for selecting @option{-mabi} and does not support ILP32. If it is used to build GCC 4.9 or later, GCC will not support option @option{-mabi=ilp32}. +To enable a workaround for the Cortex-A53 erratum number 835769 by default +(for all CPUs regardless of -mcpu option given) at configure time use the +@option{--enable-fix-cortex-a53-835769} option. This will enable the fix by +default and can be explicitly disabled during during compilation by passing the +@option{-mno-fix-cortex-a53-835769} option. Conversely, +@option{--disable-fix-cortex-a53-835769} will disable the workaround by +default. The workaround is disabled by default if neither of +@option{--enable-fix-cortex-a53-835769} or +@option{--disable-fix-cortex-a53-835769} is given at configure time. + @html <hr /> <!-- rs6000-ibm-aix*, powerpc-ibm-aix* --> |