On Mon, 2011-05-02 at 09:21 +1200, Michael Hope wrote: > Linux 2.6.35 and later on ARM randomise the address space, breaking > precompiled header support in GCC. The fix is to use the support in > GCC for mmap()ing into a fixed, likely to be free address. The ARM > memory map is modeled on the i386 so I used the same definition. > > Tested on trunk with a Ubuntu 2.6.35 kernel. Bootstraps OK and clears > all of the PCH testsuite failures. Note that this change is > equivalent to Mikael Pettersson's patch at: > http://gcc.gnu.org/ml/gcc-patches/2010-10/msg02252.html > > OK for trunk? >
OK. R. > -- Michael > > gcc/ > > 2011-05-02 Michael Hope <michael.h...@linaro.org> > > PR pch/45979 > * config/host-linux.c (TRY_EMPTY_VM_SPACE): Define for > __ARM_EABI__ hosts. > > diff --git a/gcc/config/host-linux.c b/gcc/config/host-linux.c > index 47ce3ea..8b41685 100644 > --- a/gcc/config/host-linux.c > +++ b/gcc/config/host-linux.c > @@ -84,6 +84,8 @@ > # define TRY_EMPTY_VM_SPACE 0x60000000 > #elif defined(__mc68000__) > # define TRY_EMPTY_VM_SPACE 0x40000000 > +#elif defined(__ARM_EABI__) > +# define TRY_EMPTY_VM_SPACE 0x60000000 > #else > # define TRY_EMPTY_VM_SPACE 0 > #endif
