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On 09.02.2018 19:53, Norbert Thiebaud wrote:
On Fri, Feb 9, 2018 at 6:33 PM, Stephan Bergmann <sbergman@redhat.com> wrote:
Recent master --enable-pdfium has at
workdir/UnpackedTarball/pdfium/third_party/base/allocator/partition_allocator/page_allocator.h:31

// All Blink-supported systems have 4096 sized system pages and can handle
// permissions and commit / decommit at this granularity.
static const size_t kSystemPageSize = 4096;

and sysconf(_SC_PAGE_SIZE) is not working ?

At least not easily, no. There's various static_asserts in workdir/UnpackedTarball/pdfium/third_party/base/allocator/partition_allocator/partition_alloc.cpp involving kSystemPageSize that would fail if kSystemPageSize was 65536 instead of 4096 (and those uses of static_assert would of course need to be done differently if kSystemPageSize wasn't a constant expression). That smells like the code as written indeed depends on specific qualities of kSystemPageSize.

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