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Diffstat (limited to 'gcc-4.9/gcc/doc/install.texi')
| -rw-r--r-- | gcc-4.9/gcc/doc/install.texi | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/doc/install.texi b/gcc-4.9/gcc/doc/install.texi index 80cb0a90c..b298321be 100644 --- a/gcc-4.9/gcc/doc/install.texi +++ b/gcc-4.9/gcc/doc/install.texi @@ -3788,6 +3788,16 @@ 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* --> |