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I just got hit by a double-evaluation bug again, it's time to attempt
to fix this once more. Unfortunately there are several issues that don't
make this easy:
- bitfield variables don't support typeof()
- local macro variables that shadow others trigger -Werror=shadow
- sign warnings with integer literal and unsigned var in typeof-MIN()
- ({ statement expressions }) can not be used outside functions
- romcc doesn't support any of the fancy GCC/clang extensions
This patch tries to address all of them as far as possible with macro
magic. We don't have the technology to solve the bitfield and
non-function context issues yet (__builtin_choose_expr() still throws a
"no statement expression outside a function" error if it's only in the
branch that's not chosen, unfortunately), so we'll have to provide
alternative macros for use in those cases (and we'll avoid making
__ALIGN_MASK() double-evaluation safe for now, since it would be
annoying to do that there and having an alignment mask with side
effects seems very unlikely). romcc can continue using unsafe versions
since we're hopefully not writing a lot of new code for it. Sign
warnings can be avoided in literal/variable comparisons by always using
the type of the variable there. Shadowing is avoided by picking very
explicit local variable names and using a special __COUNTER__ solution
for MIN() and MAX() (the only ones of these you're likely to nest).
Also add DIV_ROUND_UP() to libpayload since it's a generally quite
useful thing to have.
Change-Id: Iea35156c9aa9f6f2c7b8f00991418b746f44315d
Signed-off-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32027
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
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Since this code is pulled in through commonlib, it will break compilation
of cbfstool on OSX.
Change-Id: I342bfa7e755aa540c4563bb5cd8cccacee39d188
Signed-off-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-on: https://review.coreboot.org/13525
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>
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As the first step in adding support for FSP 1.1, add common header files
for EDK2. Internally FSP is based upon EDK2 and uses the defines and
data structures within these files for its interface.
These files come from revision 16227 of the open source EDK2 tree at
https://svn.code.sf.net/p/edk2/code/trunk/edk2. These files are
provided in an EDK2 style tree to allow direct comparison with the EDK2
tree.
Updates may be done manually to these files but only to support FSP 1.1
on UEFI 2.4. A uefi_2.5 tree should be added in the future as FSP
binaries migrate to UEFI 2.5.
Note: All the files were modified to use Linux line termination.
BRANCH=none
BUG=None
TEST=Build for Braswell or Skylake boards using FSP 1.1.
Change-Id: Ide5684b7eb6392e12f9f2f24215f5370c2d47c70
Signed-off-by: Lee Leahy <leroy.p.leahy@intel.com>
Reviewed-on: http://review.coreboot.org/9943
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
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