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| /rk3399_ARM-atf/make_helpers/ |
| H A D | cflags.mk | 3df79ae7175a9a02c6df4d2b63796d8b3c18efc3 Wed Apr 09 13:26:17 UTC 2025 Boyan Karatotev <boyan.karatotev@arm.com> refactor(build): place all cflags setting in one place
The top-level Makefile has to come up with a list of flags to pass to
the compiler. It has to do so while considering a variety of options and
constraints. This has generally done in the most convenient place in the
file. However, it causes problems with evaluation - options may be set
after they are used, there may be platform dependencies, DEFINES, etc.
As a result flags must be lazily evaluated and they lack any cohesive
design.
To enable a solution to this, extract all CFLAGS/LDFLAGS/ASFLAGS
configuration to a new file. Reorder rules slightly to put related rules
closer together and call the entire thing as late as possible - after
platform.mk and after the DEFINES are known.
There is a small number of libraries that set flags in their own sub
makefiles. As these contain the entire feature, do not move their flags
to keep them self-contained. This is okay as these makefile will be
evaluated before the cflags.
Change-Id: I1b6f69adbf885396632949966b77a5710d1c851d
Signed-off-by: Boyan Karatotev <boyan.karatotev@arm.com>
|
| /rk3399_ARM-atf/ |
| H A D | Makefile | 3df79ae7175a9a02c6df4d2b63796d8b3c18efc3 Wed Apr 09 13:26:17 UTC 2025 Boyan Karatotev <boyan.karatotev@arm.com> refactor(build): place all cflags setting in one place
The top-level Makefile has to come up with a list of flags to pass to
the compiler. It has to do so while considering a variety of options and
constraints. This has generally done in the most convenient place in the
file. However, it causes problems with evaluation - options may be set
after they are used, there may be platform dependencies, DEFINES, etc.
As a result flags must be lazily evaluated and they lack any cohesive
design.
To enable a solution to this, extract all CFLAGS/LDFLAGS/ASFLAGS
configuration to a new file. Reorder rules slightly to put related rules
closer together and call the entire thing as late as possible - after
platform.mk and after the DEFINES are known.
There is a small number of libraries that set flags in their own sub
makefiles. As these contain the entire feature, do not move their flags
to keep them self-contained. This is okay as these makefile will be
evaluated before the cflags.
Change-Id: I1b6f69adbf885396632949966b77a5710d1c851d
Signed-off-by: Boyan Karatotev <boyan.karatotev@arm.com>
|