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littlefs/Makefile
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Christopher Haster 9ac73ceb86 Reverted non-dag file bshrubs/btrees 
Ok so, funny story, looks like we won't actually need pure-tree
bshrubs/btrees.

It _is_ true that the single-parent constraint imposed by pure-trees can
enable a wider range of algorithms. But looking forward into the planned
design, we just happen to not need this constraint at all. I made a
mistake here:

1. Block allocation - On paper block allocation benefits the most from
   the single-parent constraint. But we have another daggish problem,
   how do we efficiently account for in-flight/open btrees?

   Naively, you might think we can just traverse all open btrees during
   allocation, since we shouldn't have _that_ many. But this scales
   O(n^2) when writing a large file. The key observation being that open
   files reference on-disk btrees and are _not_ RAM constrained.

   The current solution involves tree-diffing in order to figure out
   bmap updates. Which, humorously, works perfectly fine even if the
   trees are dags.

2. Error correction - I just completely forgot that the current plans
   for block redundancy require the ddtree.

   Each block gets mapped into the dense ddtree, with subranges of the
   ddtree grouped into parity groups backed by the ptree. Instead of
   bptrs, file btrees store indirect ddkeys into the ddtree. No bptrs?
   No dag problem!

   This is still a problem if we ever support naive data redund (redund
   blocks in a bptrs), but that's out of scope for other reasons
   (basically just a lot more code).

So reverting. Allowing dags allows for much faster random writes, at
least in theory.

---

For now I'm still keeping the dag-avoidance in lfsr_file_flush_ around
under the LFS_NONDAG ifdef. This will likely be dropped at some point,
but I'm curious how it affects benchmarks.

Ugh, and of course the unused label makes GCC unhappy. Added
-Wno-unused-label to CFLAGS because labels have other uses besides just
being goto targets (debug targets, code organization, etc).

We probably use labels more that other libraries because to littlefs's
no-recursion requirement.

Code changes minimal, still not sure where that stack difference comes
from:

           code          stack          ctx
  before: 35740           2424          640
  after:  35736 (-0.0%)   2440 (+0.7%)  640 (+0.0%)
2025-04-27 13:37:17 -05:00

694 lines
17 KiB
Makefile
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ifdef BUILDDIR
# bit of a hack, but we want to make sure BUILDDIR directory structure
# is correct before any commands
$(if $(findstring n,$(MAKEFLAGS)),, $(shell mkdir -p \
$(BUILDDIR)/ \
$(BUILDDIR)/bd \
$(BUILDDIR)/runners \
$(BUILDDIR)/tests \
$(BUILDDIR)/benches))
endif
BUILDDIR ?= .
# default to building a library
ifneq ($(wildcard test.c main.c),)
TARGET ?= $(BUILDDIR)/lfs
else
TARGET ?= $(BUILDDIR)/liblfs.a
endif
# find source files
SRC ?= $(filter-out $(wildcard *.t.* *.b.*),$(wildcard *.c))
OBJ := $(SRC:%.c=$(BUILDDIR)/%.o)
DEP := $(SRC:%.c=$(BUILDDIR)/%.d)
ASM := $(SRC:%.c=$(BUILDDIR)/%.s)
CI := $(SRC:%.c=$(BUILDDIR)/%.ci)
GCDA := $(SRC:%.c=$(BUILDDIR)/%.t.a.gcda)
TESTS ?= $(wildcard tests/*.toml)
TEST_SRC ?= $(SRC) \
$(filter-out $(wildcard bd/*.t.* bd/*.b.*),$(wildcard bd/*.c)) \
runners/test_runner.c
TEST_RUNNER ?= $(BUILDDIR)/runners/test_runner
TEST_C := $(TESTS:%.toml=$(BUILDDIR)/%.t.c) \
$(TEST_SRC:%.c=$(BUILDDIR)/%.t.c)
TEST_A := $(TEST_C:%.t.c=%.t.a.c)
TEST_OBJ := $(TEST_A:%.t.a.c=%.t.a.o)
TEST_DEP := $(TEST_A:%.t.a.c=%.t.a.d)
TEST_CI := $(TEST_A:%.t.a.c=%.t.a.ci)
TEST_GCNO := $(TEST_A:%.t.a.c=%.t.a.gcno)
TEST_GCDA := $(TEST_A:%.t.a.c=%.t.a.gcda)
TEST_PERF := $(TEST_RUNNER:%=%.perf)
TEST_TRACE := $(TEST_RUNNER:%=%.trace)
TEST_CSV := $(TEST_RUNNER:%=%.csv)
BENCHES ?= $(wildcard benches/*.toml)
BENCH_SRC ?= $(SRC) \
$(filter-out $(wildcard bd/*.t.* bd/*.b.*),$(wildcard bd/*.c)) \
runners/bench_runner.c
BENCH_RUNNER ?= $(BUILDDIR)/runners/bench_runner
BENCH_C := $(BENCHES:%.toml=$(BUILDDIR)/%.b.c) \
$(BENCH_SRC:%.c=$(BUILDDIR)/%.b.c)
BENCH_A := $(BENCH_C:%.b.c=%.b.a.c)
BENCH_OBJ := $(BENCH_A:%.b.a.c=%.b.a.o)
BENCH_DEP := $(BENCH_A:%.b.a.c=%.b.a.d)
BENCH_CI := $(BENCH_A:%.b.a.c=%.b.a.ci)
BENCH_GCNO := $(BENCH_A:%.b.a.c=%.b.a.gcno)
BENCH_GCDA := $(BENCH_A:%.b.a.c=%.b.a.gcda)
BENCH_PERF := $(BENCH_RUNNER:%=%.perf)
BENCH_TRACE := $(BENCH_RUNNER:%=%.trace)
BENCH_CSV := $(BENCH_RUNNER:%=%.csv)
# overridable tools/flags
CC ?= gcc
AR ?= ar
SIZE ?= size
CTAGS ?= ctags
OBJDUMP ?= objdump
VALGRIND ?= valgrind
GDB ?= gdb
PERF ?= perf
PRETTYASSERTS ?= ./scripts/prettyasserts.py
CFLAGS += -fcallgraph-info=su
CFLAGS += -g3
CFLAGS += -I.
CFLAGS += -std=c99 -Wall -Wextra -pedantic
# labels are useful for debugging, in-function organization, etc
CFLAGS += -Wno-unused-label
# compiler bug: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101854
CFLAGS += -Wno-stringop-overflow
CFLAGS += -ftrack-macro-expansion=0
ifdef DEBUG
CFLAGS += -O0
else
CFLAGS += -Os
endif
ifdef TRACE
CFLAGS += -DLFS_YES_TRACE
endif
ifdef COVGEN
CFLAGS += --coverage
endif
ifdef PERFGEN
CFLAGS += -fno-omit-frame-pointer
endif
ifdef PERFBDGEN
CFLAGS += -fno-omit-frame-pointer
endif
# also forward all LFS_* environment variables
CFLAGS += $(foreach D,$(filter LFS_%,$(.VARIABLES)),-D$D=$($D))
TEST_CFLAGS += -Wno-unused-function
TEST_CFLAGS += -Wno-format-overflow
BENCH_CFLAGS += -Wno-unused-function
BENCH_CFLAGS += -Wno-format-overflow
ifdef VERBOSE
CODEFLAGS += -v
DATAFLAGS += -v
STACKFLAGS += -v
CTXFLAGS += -v
STRUCTSFLAGS += -v
COVFLAGS += -v
PERFFLAGS += -v
PERFBDFLAGS += -v
endif
# forward -j flag
PERFFLAGS += $(filter -j%,$(MAKEFLAGS))
PERFBDFLAGS += $(filter -j%,$(MAKEFLAGS))
ifneq ($(OBJDUMP),objdump)
CODEFLAGS += --objdump-path="$(OBJDUMP)"
DATAFLAGS += --objdump-path="$(OBJDUMP)"
STACKFLAGS += --objdump-path="$(OBJDUMP)"
CTXFLAGS += --objdump-path="$(OBJDUMP)"
STRUCTSFLAGS += --objdump-path="$(OBJDUMP)"
PERFFLAGS += --objdump-path="$(OBJDUMP)"
PERFBDFLAGS += --objdump-path="$(OBJDUMP)"
endif
ifneq ($(PERF),perf)
PERFFLAGS += --perf-path="$(PERF)"
endif
TESTFLAGS += -b
BENCHFLAGS += -b
# forward -j flag
TESTFLAGS += $(filter -j%,$(MAKEFLAGS))
BENCHFLAGS += $(filter -j%,$(MAKEFLAGS))
ifdef PERFGEN
TESTFLAGS += -p$(TEST_PERF)
BENCHFLAGS += -p$(BENCH_PERF)
endif
ifdef PERFBDGEN
TESTFLAGS += -t$(TEST_TRACE) --trace-backtrace --trace-freq=100
endif
ifdef PERFBDGEN
BENCHFLAGS += -t$(BENCH_TRACE) --trace-backtrace --trace-freq=100
endif
ifdef TESTMARKS
TESTFLAGS += -o$(TEST_CSV)
endif
ifdef BENCHMARKS
BENCHFLAGS += -o$(BENCH_CSV)
endif
ifdef VERBOSE
TESTFLAGS += -v
TESTCFLAGS += -v
BENCHFLAGS += -v
BENCHCFLAGS += -v
endif
ifdef EXEC
TESTFLAGS += --exec="$(EXEC)"
BENCHFLAGS += --exec="$(EXEC)"
endif
ifneq ($(GDB),gdb)
TESTFLAGS += --gdb-path="$(GDB)"
BENCHFLAGS += --gdb-path="$(GDB)"
endif
ifneq ($(VALGRIND),valgrind)
TESTFLAGS += --valgrind-path="$(VALGRIND)"
BENCHFLAGS += --valgrind-path="$(VALGRIND)"
endif
ifneq ($(PERF),perf)
TESTFLAGS += --perf-path="$(PERF)"
BENCHFLAGS += --perf-path="$(PERF)"
endif
# top-level commands
## Build littlefs
.PHONY: all build
all build: $(TARGET)
## Build assembly files
.PHONY: asm
asm: $(ASM)
## Find total section sizes
.PHONY: size
size: $(OBJ)
$(SIZE) -t $^
## Generate a ctags file
.PHONY: tags ctags
tags ctags:
$(strip $(CTAGS) \
--totals --fields=+n --c-types=+p \
$(shell find -H -name '*.h') $(SRC))
## Show this help text
.PHONY: help
help:
@$(strip awk '/^## / { \
sub(/^## /,""); \
getline rule; \
while (rule ~ /^(#|\.PHONY|ifdef|ifndef)/) getline rule; \
gsub(/:.*/, "", rule); \
if (length(rule) <= 21) { \
printf "%2s%-21s %s\n", "", rule, $$0; \
} else { \
printf "%2s%s\n", "", rule; \
printf "%24s%s\n", "", $$0; \
} \
}' $(MAKEFILE_LIST))
## Find the per-function code size
.PHONY: code
code: CODEFLAGS+=-S
code: $(OBJ)
./scripts/code.py $^ $(CODEFLAGS)
## Save the per-function code size
.PHONY: code-csv
code-csv: $(BUILDDIR)/lfs.code.csv
## Compare per-function code size
.PHONY: code-diff
code-diff: $(OBJ)
./scripts/code.py $^ $(CODEFLAGS) -d $(BUILDDIR)/lfs.code.csv
## Find the per-function data size
.PHONY: data
data: DATAFLAGS+=-S
data: $(OBJ)
./scripts/data.py $^ $(DATAFLAGS)
## Save the per-function data size
.PHONY: data-csv
data-csv: $(BUILDDIR)/lfs.data.csv
## Compare per-function data size
.PHONY: data-diff
data-diff: $(OBJ)
./scripts/data.py $^ $(DATAFLAGS) -d $(BUILDDIR)/lfs.data.csv
## Find the per-function stack usage
.PHONY: stack
stack: STACKFLAGS+=-S
stack: $(CI)
./scripts/stack.py $^ $(STACKFLAGS)
## Save the per-function stack usage
.PHONY: stack-csv
stack-csv: $(BUILDDIR)/lfs.stack.csv
## Compare per-function stack usage
.PHONY: stack-diff
stack-diff: $(CI)
./scripts/stack.py $^ $(STACKFLAGS) -d $(BUILDDIR)/lfs.stack.csv
## Find the per-function context
.PHONY: ctx
ctx: CTXFLAGS+=-S
ctx: $(OBJ)
./scripts/ctx.py $^ $(CTXFLAGS)
## Save the per-function context
.PHONY: ctx-csv
ctx-csv: $(BUILDDIR)/lfs.ctx.csv
## Compare per-function context
.PHONY: ctx-diff
ctx-diff: $(CI)
./scripts/ctx.py $^ $(CTXFLAGS) -d $(BUILDDIR)/lfs.ctx.csv
## Find function sizes
.PHONY: funcs
funcs: SUMMARYFLAGS+=-S
funcs: SHELL=/bin/bash
funcs: $(OBJ) $(CI)
$(strip ./scripts/csv.py \
<(./scripts/code.py $(OBJ) $(CODEFLAGS) -o-) \
<(./scripts/stack.py $(CI) $(STACKFLAGS) -o-) \
<(./scripts/ctx.py $(OBJ) $(CTXFLAGS) -o-) \
-bfunction \
-fcode=code_size \
-fstack='max(stack_limit)' \
-fctx='max(ctx_size)' \
$(SUMMARYFLAGS))
## Save function sizes
.PHONY: funcs-csv
funcs-csv: SHELL=/bin/bash
funcs-csv: \
$(BUILDDIR)/lfs.code.csv \
$(BUILDDIR)/lfs.stack.csv \
$(BUILDDIR)/lfs.ctx.csv
## Compare function sizes
.PHONY: funcs-diff
funcs-diff: SHELL=/bin/bash
funcs-diff: $(OBJ) $(CI)
$(strip ./scripts/csv.py \
<(./scripts/code.py $(OBJ) $(CODEFLAGS) -o-) \
<(./scripts/stack.py $(CI) $(STACKFLAGS) -o-) \
<(./scripts/ctx.py $(OBJ) $(CTXFLAGS) -o-) \
-bfunction \
-fcode=code_size \
-fstack='max(stack_limit)' \
-fctx='max(ctx_size)' \
-d <(./scripts/csv.py \
$(BUILDDIR)/lfs.code.csv \
$(BUILDDIR)/lfs.stack.csv \
$(BUILDDIR)/lfs.ctx.csv \
-fcode_size=code_size \
-fstack_limit='max(stack_limit)' \
-fctx_size='max(ctx_size)' \
-o-) \
$(SUMMARYFLAGS))
## Find struct sizes
.PHONY: structs
structs: STRUCTSFLAGS+=-S
structs: $(OBJ)
./scripts/structs.py $^ $(STRUCTSFLAGS)
## Save struct sizes
.PHONY: structs-csv
structs-csv: $(BUILDDIR)/lfs.structs.csv
## Compare struct sizes
.PHONY: structs-diff
structs-diff: $(OBJ)
./scripts/structs.py $^ $(STRUCTSFLAGS) -d $(BUILDDIR)/lfs.structs.csv
## Find the line/branch coverage after a test run
.PHONY: cov
cov: COVFLAGS+=-s
cov: $(GCDA)
$(strip ./scripts/cov.py $^ \
$(patsubst %,-F%,$(SRC)) \
$(COVFLAGS))
## Save line/branch coverage
.PHONY: cov-csv
cov-csv: $(BUILDDIR)/lfs.cov.csv
## Compare line/branch coverage
.PHONY: cov-diff
cov-diff: $(GCDA)
$(strip ./scripts/cov.py $^ \
$(patsubst %,-F%,$(SRC)) \
$(COVFLAGS) -d $(BUILDDIR)/lfs.cov.csv)
## Find the perf results after bench run with PERFGEN
.PHONY: perf
perf: PERFFLAGS+=-S
perf: $(BENCH_PERF)
$(strip ./scripts/perf.py $^ \
$(patsubst %,-F%,$(SRC)) \
$(PERFFLAGS))
## Save perf results
.PHONY: perf-csv
perf-csv: $(BUILDDIR)/lfs.perf.csv
## Compare perf results
.PHONY: perf-diff
perf-diff: $(BENCH_PERF)
$(strip ./scripts/perf.py $^ \
$(patsubst %,-F%,$(SRC)) \
$(PERFFLAGS) -d $(BUILDDIR)/lfs.perf.csv)
## Find the perfbd results after a bench run
.PHONY: perfbd
perfbd: PERFBDFLAGS+=-S
perfbd: $(BENCH_TRACE)
$(strip ./scripts/perfbd.py $(BENCH_RUNNER) $^ \
$(patsubst %,-F%,$(SRC)) \
$(PERFBDFLAGS))
## Save perfbd results
.PHONY: perfbd-csv
perfbd-csv: $(BUILDDIR)/lfs.perfbd.csv
## Compare perfbd results
.PHONY: perfbd-diff
perfbd-diff: $(BENCH_TRACE)
$(strip ./scripts/perfbd.py $(BENCH_RUNNER) $^ \
$(patsubst %,-F%,$(SRC)) \
$(PERFBDFLAGS) -d $(BUILDDIR)/lfs.perfbd.csv)
## Find a summary of compile-time sizes
.PHONY: summary sizes
summary sizes: SHELL=/bin/bash
summary sizes: $(OBJ) $(CI)
$(strip ./scripts/csv.py \
<(./scripts/code.py $(OBJ) $(CODEFLAGS) -o-) \
<(./scripts/data.py $(OBJ) $(DATAFLAGS) -o-) \
<(./scripts/stack.py $(CI) $(STACKFLAGS) -o-) \
<(./scripts/ctx.py $(OBJ) $(CTXFLAGS) -o-) \
-bfunction \
-fcode=code_size \
-fdata=data_size \
-fstack='max(stack_limit)' \
-fctx='max(ctx_size)' \
-Y $(SUMMARYFLAGS))
## Save compile-time sizes
.PHONY: summary-csv sizes-csv
summary-csv sizes-csv: SHELL=/bin/bash
summary-csv sizes-csv: \
$(BUILDDIR)/lfs.code.csv \
$(BUILDDIR)/lfs.data.csv \
$(BUILDDIR)/lfs.stack.csv \
$(BUILDDIR)/lfs.ctx.csv
## Compare compile-time sizes
.PHONY: summary-diff sizes-diff
summary-diff sizes-diff: SHELL=/bin/bash
summary-diff sizes-diff: $(OBJ) $(CI)
$(strip ./scripts/csv.py \
<(./scripts/csv.py \
<(./scripts/code.py $(OBJ) $(CODEFLAGS) -o-) \
<(./scripts/data.py $(OBJ) $(DATAFLAGS) -o-) \
<(./scripts/stack.py $(CI) $(STACKFLAGS) -o-) \
<(./scripts/ctx.py $(OBJ) $(CTXFLAGS) -o-) \
-bbuild=AFTER \
-fcode=code_size \
-fdata=data_size \
-fstack='max(stack_limit)' \
-fctx='max(ctx_size)' \
-o-) \
<(./scripts/csv.py \
$(BUILDDIR)/lfs.code.csv \
$(BUILDDIR)/lfs.data.csv \
$(BUILDDIR)/lfs.stack.csv \
$(BUILDDIR)/lfs.ctx.csv \
-bbuild=BEFORE \
-fcode=code_size \
-fdata=data_size \
-fstack='max(stack_limit)' \
-fctx='max(ctx_size)' \
-o-) \
-bbuild -cBEFORE -Q $(SUMMARYFLAGS))
## Generate a codemap svg
.PHONY: codemap
codemap: CODEMAPFLAGS+=-W1400 -H750 --dark
codemap: $(BUILDDIR)/lfs.codemap.svg
## Generate a tiny codemap, where 1 pixel ~= 1 byte
.PHONY: codemap-tiny
codemap-tiny: CODEMAPFLAGS+=--dark
codemap-tiny: $(BUILDDIR)/lfs.codemap-tiny.svg
## Build the test-runner
.PHONY: test-runner build-tests
test-runner build-tests: CFLAGS+=$(TEST_CFLAGS)
# note we remove some binary dependent files during compilation,
# otherwise it's way to easy to end up with outdated results
test-runner build-tests: $(TEST_RUNNER)
ifdef COVGEN
rm -f $(TEST_GCDA)
endif
ifdef PERFGEN
rm -f $(TEST_PERF)
endif
ifdef PERFBDGEN
rm -f $(TEST_TRACE)
endif
## Run the tests, -j enables parallel tests
.PHONY: test
test: test-runner
./scripts/test.py -R$(TEST_RUNNER) $(TESTFLAGS)
## List the tests
.PHONY: test-list list-tests
test-list list-tests: test-runner
./scripts/test.py -R$(TEST_RUNNER) $(TESTFLAGS) -l
## Summarize the test results
.PHONY: testmarks
testmarks: SUMMARYFLAGS+=-spassed -Stime
testmarks: $(TEST_CSV)
$(strip ./scripts/csv.py $^ \
-bsuite \
-fpassed=test_passed \
-ftime=test_time \
$(SUMMARYFLAGS))
## Save the test results
.PHONY: testmarks-csv
testmarks-csv: $(BUILDDIR)/lfs.test.csv
## Compare test results against a previous run
.PHONY: testmarks-diff
testmarks-diff: $(TEST_CSV)
$(strip ./scripts/csv.py $^ \
-bsuite \
-fpassed=test_passed \
-ftime=test_time \
$(SUMMARYFLAGS) -d $(BUILDDIR)/lfs.test.csv)
## Build the bench-runner
.PHONY: bench-runner build-benches
bench-runner build-benches: CFLAGS+=$(BENCH_CFLAGS)
# note we remove some binary dependent files during compilation,
# otherwise it's way to easy to end up with outdated results
bench-runner build-benches: $(BENCH_RUNNER)
ifdef COVGEN
rm -f $(BENCH_GCDA)
endif
ifdef PERFGEN
rm -f $(BENCH_PERF)
endif
ifdef PERFBDGEN
rm -f $(BENCH_TRACE)
endif
## Run the benches, -j enables parallel benches
.PHONY: bench
bench: bench-runner
./scripts/bench.py -R$(BENCH_RUNNER) $(BENCHFLAGS)
## List the benches
.PHONY: bench-list list-benches
bench-list list-benches: bench-runner
./scripts/bench.py -R$(BENCH_RUNNER) $(BENCHFLAGS) -l
## Summarize the bench results
.PHONY: benchmarks
benchmarks: SUMMARYFLAGS+=-Serased -Sproged -Sreaded
benchmarks: $(BENCH_CSV)
$(strip ./scripts/csv.py $^ \
-bsuite \
-freaded=bench_readed \
-fproged=bench_proged \
-ferased=bench_erased \
$(SUMMARYFLAGS))
## Save the bench results
.PHONY: benchmarks-csv
benchmarks-csv: $(BUILDDIR)/lfs.bench.csv
## Compare bench results against a previous run
.PHONY: benchmarks-diff
benchmarks-diff: $(BENCH_CSV)
$(strip ./scripts/csv.py $^ \
-bsuite \
-freaded=bench_readed \
-fproged=bench_proged \
-ferased=bench_erased \
$(SUMMARYFLAGS) -d $(BUILDDIR)/lfs.bench.csv)
# low-level rules
-include $(DEP)
-include $(TEST_DEP)
.SUFFIXES:
.SECONDARY:
$(BUILDDIR)/lfs: $(OBJ)
$(CC) $(CFLAGS) $^ $(LFLAGS) -o$@
$(BUILDDIR)/liblfs.a: $(OBJ)
$(AR) rcs $@ $^
$(BUILDDIR)/lfs.code.csv: $(OBJ)
./scripts/code.py $^ $(CODEFLAGS) -o$@
$(BUILDDIR)/lfs.data.csv: $(OBJ)
./scripts/data.py $^ $(DATAFLAGS) -o$@
$(BUILDDIR)/lfs.stack.csv: $(CI)
./scripts/stack.py $^ $(STACKFLAGS) -o$@
$(BUILDDIR)/lfs.ctx.csv: $(OBJ)
./scripts/ctx.py $^ $(CTXFLAGS) -o$@
$(BUILDDIR)/lfs.structs.csv: $(OBJ)
./scripts/structs.py $^ $(STRUCTSFLAGS) -o$@
$(BUILDDIR)/lfs.cov.csv: $(GCDA)
$(strip ./scripts/cov.py $^ \
$(patsubst %,-F%,$(SRC)) \
$(COVFLAGS) -o$@)
$(BUILDDIR)/lfs.perf.csv: $(BENCH_PERF)
$(strip ./scripts/perf.py $^ \
$(patsubst %,-F%,$(SRC)) \
$(PERFFLAGS) -o$@)
$(BUILDDIR)/lfs.perfbd.csv: $(BENCH_TRACE)
$(strip ./scripts/perfbd.py $(BENCH_RUNNER) $^ \
$(patsubst %,-F%,$(SRC)) \
$(PERFBDFLAGS) -o$@)
$(BUILDDIR)/lfs.codemap.svg: $(OBJ) $(CI)
$(strip ./scripts/codemapd3.py $^ $(CODEMAPFLAGS) -o$@ \
&& ./scripts/codemap.py $^ --no-header)
$(BUILDDIR)/lfs.codemap-tiny.svg: $(OBJ) $(CI)
$(strip ./scripts/codemapd3.py $^ --tiny $(CODEMAPFLAGS) -o$@ \
&& ./scripts/codemap.py $^ --no-header)
$(BUILDDIR)/lfs.test.csv: $(TEST_CSV)
cp $^ $@
$(BUILDDIR)/lfs.bench.csv: $(BENCH_CSV)
cp $^ $@
$(BUILDDIR)/runners/test_runner: $(TEST_OBJ)
$(CC) $(CFLAGS) $^ $(LFLAGS) -o$@
$(BUILDDIR)/runners/bench_runner: $(BENCH_OBJ)
$(CC) $(CFLAGS) $^ $(LFLAGS) -o$@
# our main build rule generates .o, .d, and .ci files, the latter
# used for stack analysis
$(BUILDDIR)/%.o $(BUILDDIR)/%.ci: %.c
$(CC) -c -MMD $(CFLAGS) $< -o $(BUILDDIR)/$*.o
$(BUILDDIR)/%.s: %.c
$(CC) -S $(CFLAGS) $< -o$@
$(BUILDDIR)/%.a.c: %.c
$(PRETTYASSERTS) -Plfs_ $< -o$@
$(BUILDDIR)/%.a.c: $(BUILDDIR)/%.c
$(PRETTYASSERTS) -Plfs_ $< -o$@
$(BUILDDIR)/%.t.c: %.toml
./scripts/test.py -c $< $(TESTCFLAGS) -o$@
$(BUILDDIR)/%.t.c: %.c $(TESTS)
./scripts/test.py -c $(TESTS) -s $< $(TESTCFLAGS) -o$@
$(BUILDDIR)/%.b.c: %.toml
./scripts/bench.py -c $< $(BENCHCFLAGS) -o$@
$(BUILDDIR)/%.b.c: %.c $(BENCHES)
./scripts/bench.py -c $(BENCHES) -s $< $(BENCHCFLAGS) -o$@
## Clean everything
.PHONY: clean
clean:
rm -f $(BUILDDIR)/lfs
rm -f $(BUILDDIR)/liblfs.a
rm -f $(BUILDDIR)/lfs.code.csv
rm -f $(BUILDDIR)/lfs.data.csv
rm -f $(BUILDDIR)/lfs.stack.csv
rm -f $(BUILDDIR)/lfs.ctx.csv
rm -f $(BUILDDIR)/lfs.structs.csv
rm -f $(BUILDDIR)/lfs.cov.csv
rm -f $(BUILDDIR)/lfs.perf.csv
rm -f $(BUILDDIR)/lfs.perfbd.csv
rm -f $(BUILDDIR)/lfs.codemap.svg
rm -f $(BUILDDIR)/lfs.codemap-tiny.svg
rm -f $(BUILDDIR)/lfs.test.csv
rm -f $(BUILDDIR)/lfs.bench.csv
rm -f $(OBJ)
rm -f $(DEP)
rm -f $(ASM)
rm -f $(CI)
rm -f $(TEST_RUNNER)
rm -f $(TEST_A)
rm -f $(TEST_C)
rm -f $(TEST_OBJ)
rm -f $(TEST_DEP)
rm -f $(TEST_CI)
rm -f $(TEST_GCNO)
rm -f $(TEST_GCDA)
rm -f $(TEST_PERF)
rm -f $(TEST_TRACE)
rm -f $(TEST_CSV)
rm -f $(BENCH_RUNNER)
rm -f $(BENCH_A)
rm -f $(BENCH_C)
rm -f $(BENCH_OBJ)
rm -f $(BENCH_DEP)
rm -f $(BENCH_CI)
rm -f $(BENCH_GCNO)
rm -f $(BENCH_GCDA)
rm -f $(BENCH_PERF)
rm -f $(BENCH_TRACE)
rm -f $(BENCH_CSV)
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