Peter A. Bigot 765c06376c Revert "sys/util.h: helper macro to perform pointer difference" ... This reverts commit 755cc644cc. This approach is problematic in several ways. First, `intptr_t` could cause undefined behavior in the subtraction when the pointer converts to a negative value. Except in weird cases where the sign of the pointer identifies a memory domain (like kernel vs userspace) I'm unaware of any valid use of `intptr_t`. Second, this macro was created to address a special need that cannot rely on defined behavior: i.e. to ensure that data definitions are placed in contiguous space and access is provided through linker-defined symbols, for which the language required alignment and continuity is not guaranteed. A macro that calculates the span between linker symbols has very different semantics than one that calculates the difference between pointers. Replace the global PTR_DIFF with a documented local macro that tests what's necessary without risking integer overflow. Signed-off-by: Peter A. Bigot <pab@pabigot.com>		2019-07-17 03:44:03 -04:00
..
bos	print format: adjust specifiers to be compatible with a 64-bit build	2019-07-11 20:12:26 -07:00
desc_sections	Revert "sys/util.h: helper macro to perform pointer difference"	2019-07-17 03:44:03 -04:00
device	test/usb: fix pointer type mismatch	2019-07-05 14:16:50 -04:00
os_desc	tests: enable native_posix_64 testing	2019-07-16 10:41:11 -07:00