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ircd: Reduce debug_info bloating in units with spirit grammars.

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This commit is contained in:
Jason Volk 2019-05-16 19:30:55 -07:00
parent 0c01304a94
commit 04ec279fb5
1 changed files with 19 additions and 8 deletions
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27
ircd/Makefile.am
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@ -146,32 +146,43 @@ libircd_la_SOURCES += m.cc
libircd_la_SOURCES += m_event.cc
libircd_la_SOURCES += ircd.cc
# Units containing a spirit grammar have some special needs to mitigate
# larger-than-normal compile time, compile memory, and output objects.
# A composite of CXXFLAGS is used specifically on units with grammars.
GUNIT_CXXFLAGS = ###
# Grammar templates can generate a huge number of individual debug symbols
# for each template instantiation deep within spirit; we try to reduce...
GUNIT_CXXFLAGS += -fno-var-tracking
GUNIT_CXXFLAGS += -fno-var-tracking-assignments
GUNIT_CXXFLAGS += -femit-struct-debug-baseonly
# The recursive grammars can consume a large amount of RAM when compiling
# (>= 2 GiB) which can thrash small systems and even sometimes crash GCC.
# This option reduces memory consumption at the cost of compilation speed.
if GCC
if LOWMEM_COMPILE
LOWMEM_FLAGS= --param ggc-min-expand=1
GUNIT_CXXFLAGS += --param ggc-min-expand=1
endif
endif
parse.lo: AM_CPPFLAGS := -include ircd/spirit.h ${AM_CPPFLAGS}
parse.lo: CXXFLAGS += ${LOWMEM_FLAGS}
parse.lo: CXXFLAGS += ${GUNIT_CXXFLAGS}
json.lo: AM_CPPFLAGS := -include ircd/spirit.h ${AM_CPPFLAGS}
json.lo: CXXFLAGS += ${LOWMEM_FLAGS}
json.lo: CXXFLAGS += ${GUNIT_CXXFLAGS}
http.lo: AM_CPPFLAGS := -include ircd/spirit.h ${AM_CPPFLAGS}
http.lo: CXXFLAGS += ${LOWMEM_FLAGS}
http.lo: CXXFLAGS += ${GUNIT_CXXFLAGS}
fmt.lo: AM_CPPFLAGS := -include ircd/spirit.h ${AM_CPPFLAGS}
fmt.lo: CXXFLAGS += ${LOWMEM_FLAGS}
fmt.lo: CXXFLAGS += ${GUNIT_CXXFLAGS}
rfc3986.lo: AM_CPPFLAGS := -include ircd/spirit.h ${AM_CPPFLAGS}
rfc3986.lo: CXXFLAGS += ${LOWMEM_FLAGS}
rfc3986.lo: CXXFLAGS += ${GUNIT_CXXFLAGS}
rfc1459.lo: AM_CPPFLAGS := -include ircd/spirit.h ${AM_CPPFLAGS}
rfc1459.lo: CXXFLAGS += ${LOWMEM_FLAGS}
rfc1459.lo: CXXFLAGS += ${GUNIT_CXXFLAGS}
m_id.lo: AM_CPPFLAGS := -include ircd/spirit.h ${AM_CPPFLAGS}
m_id.lo: CXXFLAGS += ${LOWMEM_FLAGS}
m_id.lo: CXXFLAGS += ${GUNIT_CXXFLAGS}