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109a0a7e90
Add explicit arch-specific modules.c rules to keep the build from generating an incorrect common/modules.c. Otherwise the pattern rules would cascade such that it'd look for $arch/modules.o which turned into common/modules.c which triggered the gen rule. My local testing of this code didn't catch this bug because of how Automake manages .Po (dependency files) in incremental builds -- it was adding extra rules that override the pattern rules which caused the build to generate correct modules.c files. But when building from a cold cache, the pattern rules would force common/modules.c to be used leading to crashes at runtime.
144 lines
4.8 KiB
Makefile
144 lines
4.8 KiB
Makefile
## See sim/Makefile.am
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##
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## Copyright (C) 2020-2023 Free Software Foundation, Inc.
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##
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## This program is free software; you can redistribute it and/or modify
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## it under the terms of the GNU General Public License as published by
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## the Free Software Foundation; either version 3 of the License, or
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## (at your option) any later version.
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##
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## This program is distributed in the hope that it will be useful,
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## but WITHOUT ANY WARRANTY; without even the implied warranty of
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## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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## GNU General Public License for more details.
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##
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## You should have received a copy of the GNU General Public License
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## along with this program. If not, see <http://www.gnu.org/licenses/>.
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AM_CPPFLAGS_%C% = -DWITH_TARGET_WORD_BITSIZE=64
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AM_CPPFLAGS_%C%_mloop_le.o = -DWANT_ISA_EBPFLE
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AM_CPPFLAGS_%C%_mloop_be.o = -DWANT_ISA_EBPFBE
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AM_CPPFLAGS_%C%_decode_le.o = -DWANT_ISA_EBPFLE
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AM_CPPFLAGS_%C%_decode_be.o = -DWANT_ISA_EBPFBE
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AM_CPPFLAGS_%C%_sem_le.o = -DWANT_ISA_EBPFLE
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AM_CPPFLAGS_%C%_sem_be.o = -DWANT_ISA_EBPFBE
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nodist_%C%_libsim_a_SOURCES = \
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%D%/modules.c
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%C%_libsim_a_SOURCES = \
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$(common_libcommon_a_SOURCES)
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%C%_libsim_a_LIBADD = \
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$(patsubst %,%D%/%,$(SIM_NEW_COMMON_OBJS)) \
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$(patsubst %,%D%/dv-%.o,$(SIM_HW_DEVICES)) \
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\
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%D%/cgen-run.o \
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%D%/cgen-scache.o \
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%D%/cgen-trace.o \
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%D%/cgen-utils.o \
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\
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%D%/arch.o \
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%D%/cpu.o \
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%D%/decode-le.o \
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%D%/decode-be.o \
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%D%/sem-le.o \
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%D%/sem-be.o \
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%D%/mloop-le.o \
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%D%/mloop-be.o \
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\
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%D%/bpf.o \
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%D%/bpf-helpers.o \
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%D%/sim-if.o \
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%D%/traps.o
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$(%C%_libsim_a_OBJECTS) $(%C%_libsim_a_LIBADD): %D%/hw-config.h
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noinst_LIBRARIES += %D%/libsim.a
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## Override wildcards that trigger common/modules.c to be (incorrectly) used.
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%D%/modules.o: %D%/modules.c
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%D%/%.o: common/%.c ; $(SIM_COMPILE)
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-@am__include@ %D%/$(DEPDIR)/*.Po
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%C%_run_SOURCES =
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%C%_run_LDADD = \
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%D%/nrun.o \
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%D%/libsim.a \
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$(SIM_COMMON_LIBS)
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noinst_PROGRAMS += %D%/run
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## List all generated headers to help Automake dependency tracking.
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BUILT_SOURCES += \
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%D%/eng-le.h \
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%D%/eng-be.h
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%C%_BUILD_OUTPUTS = \
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%D%/mloop-le.c \
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%D%/stamp-mloop-le \
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%D%/mloop-be.c \
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%D%/stamp-mloop-be
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## Generating modules.c requires all sources to scan.
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%D%/modules.c: | $(%C%_BUILD_OUTPUTS)
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%D%/mloop-le.c %D%/eng-le.h: %D%/stamp-mloop-le ; @true
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%D%/stamp-mloop-le: $(srccom)/genmloop.sh %D%/mloop.in
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$(AM_V_GEN)$(SHELL) $(srccom)/genmloop.sh -shell $(SHELL) \
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-mono -scache -prefix bpfbf_ebpfle -cpu bpfbf \
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-infile $(srcdir)/%D%/mloop.in \
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-outfile-prefix %D%/ -outfile-suffix -le
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$(AM_V_at)$(SHELL) $(srcroot)/move-if-change %D%/eng-le.hin %D%/eng-le.h
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$(AM_V_at)$(SHELL) $(srcroot)/move-if-change %D%/mloop-le.cin %D%/mloop-le.c
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$(AM_V_at)touch $@
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%D%/mloop-be.c %D%/eng-be.h: %D%/stamp-mloop-be ; @true
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%D%/stamp-mloop-be: $(srccom)/genmloop.sh %D%/mloop.in
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$(AM_V_GEN)$(SHELL) $(srccom)/genmloop.sh -shell $(SHELL) \
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-mono -scache -prefix bpfbf_ebpfbe -cpu bpfbf \
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-infile $(srcdir)/%D%/mloop.in \
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-outfile-prefix %D%/ -outfile-suffix -be
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$(AM_V_at)$(SHELL) $(srcroot)/move-if-change %D%/eng-be.hin %D%/eng-be.h
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$(AM_V_at)$(SHELL) $(srcroot)/move-if-change %D%/mloop-be.cin %D%/mloop-be.c
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$(AM_V_at)touch $@
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MOSTLYCLEANFILES += $(%C%_BUILD_OUTPUTS)
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## Target that triggers all cgen targets that works when --disable-cgen-maint.
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%D%/cgen: %D%/cgen-arch %D%/cgen-cpu %D%/cgen-defs-le %D%/cgen-defs-be %D%/cgen-decode-le %D%/cgen-decode-be
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%D%/cgen-arch:
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$(AM_V_GEN)mach=bpf cpu=bpfbf FLAGS="with-scache"; $(CGEN_GEN_ARCH)
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%D%/arch.h %D%/arch.c %D%/cpuall.h: @CGEN_MAINT@ %D%/cgen-arch
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%D%/cgen-cpu:
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$(AM_V_GEN)isa=ebpfle,ebpfbe cpu=bpfbf mach=bpf FLAGS="with-multiple-isa with-scache"; $(CGEN_GEN_CPU)
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$(AM_V_at)rm -f $(srcdir)/%D%/model.c
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%D%/cpu.h %D%/cpu.c %D%/model.c: @CGEN_MAINT@ %D%/cgen-cpu
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## We need to generate a group of files per ISA.
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## For eBPF little-endian:
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## defs-le.h
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## sem-le.c, decode-le.c, decode-le.h
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## $(objdir)/mloop-le.c $(objdir)/eng-le.h
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## For eBPF big-endian:
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## defs-be.h
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## sem-be.c, decode-be.c, decode-be.h
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## $(objdir)/mloop-be.c $(objdir)/eng-le.h
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##
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## The rules below take care of that.
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%D%/cgen-defs-le:
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$(AM_V_GEN)isa=ebpfle cpu=bpfbf mach=bpf FLAGS="with-scache" SUFFIX="-le"; $(CGEN_GEN_DEFS)
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%D%/defs-le.h: @CGEN_MAINT@ %D%/cgen-defs-le
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%D%/cgen-defs-be:
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$(AM_V_GEN)isa=ebpfbe cpu=bpfbf mach=bpf FLAGS="with-scache" SUFFIX="-be"; $(CGEN_GEN_DEFS)
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%D%/defs-be.h: @CGEN_MAINT@ %D%/cgen-defs-be
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%D%/cgen-decode-le:
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$(AM_V_GEN)isa=ebpfle cpu=bpfbf mach=bpf FLAGS="with-scache" SUFFIX="-le" EXTRAFILES="$(CGEN_CPU_SEM)"; $(CGEN_GEN_DECODE)
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%D%/sem-le.c %D%/decode-le.c %D%/decode-le.h: @CGEN_MAINT@ %D%/cgen-decode-vle
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%D%/cgen-decode-be:
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$(AM_V_GEN)isa=ebpfbe cpu=bpfbf mach=bpf FLAGS="with-scache" SUFFIX="-be" EXTRAFILES="$(CGEN_CPU_SEM)"; $(CGEN_GEN_DECODE)
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%D%/sem-be.c %D%/decode-be.c %D%/decode-be.h: @CGEN_MAINT@ %D%/cgen-decode-be
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