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Commentary (#4580)

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This commit is contained in:
Wilson Snyder 2023-10-18 08:15:55 -04:00
parent 493f1da266
commit 263697e491
1 changed files with 7 additions and 5 deletions
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12
include/verilated.mk.in
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@ -259,9 +259,11 @@ $(VM_PREFIX)__ALL.a: $(VK_OBJS) $(VM_HIER_LIBS)
### Compile rules
ifneq ($(VM_DEFAULT_RULES),0)
# Anything not in $(VK_OBJS_SLOW) or $(VK_GLOBAL_OBJS), including verilated.o
# and user files passed on the Verilator command line use this rule.
# We put OPT_FAST/OPT_SLOW/OPT_GLOBAL before the other flags to
# Compilation rule for anything not in $(VK_OBJS_FAST), $(VK_OBJS_SLOW), or
# $(VK_GLOBAL_OBJS) including verilated.o. This typically means user files
# passed on the Verilator command line.
#
# These rules put OPT_FAST/OPT_SLOW/OPT_GLOBAL before the other flags to
# allow USER_CPPFLAGS to override them
%.o: %.cpp
$(OBJCACHE) $(CXX) $(OPT_FAST) $(CXXFLAGS) $(CPPFLAGS) -c -o $@ $<
@ -276,8 +278,8 @@ $(VK_GLOBAL_OBJS): %.o: %.cpp
$(OBJCACHE) $(CXX) $(OPT_GLOBAL) $(CXXFLAGS) $(CPPFLAGS) -c -o $@ $<
# Precompile a header file
# PCH's compiler flags must match exactly the fast/slow arguments used in the .cpp file,
# or the PCH file won't be used.
# PCH's compiler flags must match exactly the rules' above FAST/SLOW
# arguments used for the .cpp files, or the PCH file won't be used.
%.fast.gch: %
$(OBJCACHE) $(CXX) $(OPT_FAST) $(CXXFLAGS) $(CPPFLAGS) $(CFG_CXXFLAGS_PCH) $< -o $@
%.slow.gch: %