On Wed, Aug 09, 2023 at 03:45:31PM -0700, Charlie Jenkins wrote:
On Wed, Aug 09, 2023 at 08:42:58AM +0100, Conor Dooley wrote:
On Tue, Aug 08, 2023 at 06:51:06PM -0700, Charlie Jenkins wrote:
Make sv48 the default address space for mmap as some applications currently depend on this assumption. Users can now select a desired address space using a non-zero hint address to mmap. Previously, requesting the default address space from mmap by passing zero as the hint address would result in using the largest address space possible. Some applications depend on empty bits in the virtual address space, like Go and Java, so this patch provides more flexibility for application developers.
This still does not build: ../fs/binfmt_flat.c:900:30: error: call to undeclared function 'is_compat_task'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
Reproduceable with allmodconfig.
There is some weird interaction with compat.h. Moving the definitions in pgtable.h into the #ifndef __ASSEMBLY__ guarded section resolves the compile error. I will send out another version with this change.
Just be sure to run an allmodconfig build this time before doing so ;)