Commit Graph

8 Commits

Author SHA1 Message Date
Alexander Vasiljev
45672c269d Make: use gcc as LD 2021-06-10 03:43:18 -07:00
chao.an
b88561299b make/expression: improving up asm/C/C++ compile times
In the current compilation environment, the recursive assignment(=) for compile
flags will be delayed until every file is actually need to be compile.

For example:
--------------------------------------------------------------------------------
arch/arm/src/Makefile:

INCLUDES += ${shell $(INCDIR) "$(CC)" $(ARCH_SRCDIR)$(DELIM)chip}
INCLUDES += ${shell $(INCDIR) "$(CC)" $(ARCH_SRCDIR)$(DELIM)common}
INCLUDES += ${shell $(INCDIR) "$(CC)" $(ARCH_SRCDIR)$(DELIM)$(ARCH_SUBDIR)}
INCLUDES += ${shell $(INCDIR) "$(CC)" $(TOPDIR)$(DELIM)sched}

CPPFLAGS += $(INCLUDES) $(EXTRAFLAGS)
CFLAGS += $(INCLUDES) $(EXTRAFLAGS)
CXXFLAGS += $(INCLUDES) $(EXTRAFLAGS)
AFLAGS += $(INCLUDES) $(EXTRAFLAGS)
--------------------------------------------------------------------------------

All compilation options will be included recursively,
which will be delayed until the compilation options are actually used:

tools/Config.mk:

--------------------------------------------------------------------------------
define COMPILE
  @echo "CC: $1"
  $(Q) $(CC) -c $(CFLAGS) $($(strip $1)_CFLAGS) $1 -o $2
endef
--------------------------------------------------------------------------------

All compile flags to be reexecuted $(INCDIR) as long as one file needs to be compiled,
but in fact, the compilation options have not changed in the current directory.

So the we recommand to change the syntax of assignment
From
    Recursive (=)
To
    Simple    (:=)

In this way, we can ensure that all compilation options are expanded only once and reducing repeated works.

Signed-off-by: chao.an <anchao@xiaomi.com>
2020-11-02 07:53:53 -08:00
Xiang Xiao
b329e2377d boards: Move toolchain related variables to Toolchain.defs
1.It make sense to let Toolchain.defs give the default value
2.The board can still change if the default isn't suitable
3.Avoid the same definition spread more than 200 Make.defs

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
Change-Id: Ic2649f1c7689bcf59c105ca8db61cad45b6e0e64
2020-07-20 17:10:37 +01:00
Xiang Xiao
f5311de6b4 boards: Remove the unused ARCHCCVERSION and ARCHCCMAJOR
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
Change-Id: I22d546693139c59c8c899479887a5f04d65edbd6
2020-07-16 11:03:53 -07:00
Xiang Xiao
ee875b2a26 boards: Move HOSTCC/HOSTCFLAGS to tools/Config.mk
Make.defs under board folder can still overwrite the default as needed

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
Change-Id: I1c300a8ace4b54d475ef8d398661ed65ca273a2e
2020-07-15 19:14:58 +01:00
Xiang Xiao
d32e9c38df boards: Move the C/C++ search path to the common place
so all boards support uClibc++/libc++ automatically

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
Change-Id: Ibe6fafbec57f7acb26ea6188a3e9923ea82295c5
2020-07-13 15:11:12 -03:00
Alan C. Assis
a673086af8 Add Apache license to Make.defs as well 2020-06-07 02:29:16 +01:00
Alan C. Assis
1e8cd3f189 Add initial support to STM32F411-Minimum board (aka BlackPill) 2020-06-07 02:29:16 +01:00