If CONFIG_USE_GUEST_BASE is not defined, gcc complains: linux-user/mmap.c:235: error: comparison of unsigned expression >= 0 is always true
because RESERVED_VA is #defined to 0. Since mmap_find_vma_reserved() will never be called anyway if RESERVED_VA is always 0, fix this by simply #ifdef'ing away the function and its callsite. Signed-off-by: Peter Maydell <peter.mayd...@linaro.org> --- I'm not a great fan of introducing #ifdefs, but I couldn't come up with a cleaner way of shutting gcc up... linux-user/mmap.c | 4 ++++ 1 files changed, 4 insertions(+), 0 deletions(-) diff --git a/linux-user/mmap.c b/linux-user/mmap.c index abf21f6..0cf22f8 100644 --- a/linux-user/mmap.c +++ b/linux-user/mmap.c @@ -216,6 +216,7 @@ static abi_ulong mmap_next_start = TASK_UNMAPPED_BASE; unsigned long last_brk; +#ifdef CONFIG_USE_GUEST_BASE /* Subroutine of mmap_find_vma, used when we have pre-allocated a chunk of guest address space. */ static abi_ulong mmap_find_vma_reserved(abi_ulong start, abi_ulong size) @@ -249,6 +250,7 @@ static abi_ulong mmap_find_vma_reserved(abi_ulong start, abi_ulong size) mmap_next_start = addr; return last_addr; } +#endif /* * Find and reserve a free memory area of size 'size'. The search @@ -271,9 +273,11 @@ abi_ulong mmap_find_vma(abi_ulong start, abi_ulong size) size = HOST_PAGE_ALIGN(size); +#ifdef CONFIG_USE_GUEST_BASE if (RESERVED_VA) { return mmap_find_vma_reserved(start, size); } +#endif addr = start; wrapped = repeat = 0; -- 1.7.1