349 lines
13 KiB
Makefile
349 lines
13 KiB
Makefile
# vlibc — top-level build (see building/C.md and layouts/C.md).
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SUBDIRS = benchmarks
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# Build-dir include FIRST: configure generates include/vlibc/features.h
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# (from the .in template) into the BUILD tree, and a VPATH build must find
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# the generated header before the source tree's checked-in headers.
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AM_CPPFLAGS = -I$(top_builddir)/include -I$(top_srcdir)/include
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AM_CFLAGS = @VLIBC_CFLAGS@
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# ---- Library -------------------------------------------------------------
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# Authoritative source-dir inventory (todo 6). Every directory a later plan
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# todo creates is enumerated here ONCE, so no area can be forgotten; each is
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# appended to libvlibc_la_SOURCES WHEN ITS TODO LANDS — the list grows
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# incrementally and never references a directory that does not exist yet:
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#
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# W1 (wired now): src/internal, src/start, src/errno,
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# src/setjmp/x86_64, src/string, crt/ (crt1.o)
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# todo 7 src/malloc todo 39-42 src/math todo 50 src/multibyte
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# todo 11-14 src/stdlib todo 43 src/complex todo 53-54 src/regex
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# todo 15-18 src/stdio todo 9,51 src/ctype todo 57-58 src/network
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# todo 19,38 src/unistd todo 55 src/search todo 59 src/mq
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# todo 20,23,56 src/process todo 66 src/crypt todo 60 src/aio
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# todo 21 src/fcntl todo 44-48 src/thread todo 61 src/ipc
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# todo 22,34 src/stat todo 49,52 src/locale todo 62-63 src/ldso
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# todo 24 src/dirent todo 42 src/fenv/x86_64
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# todo 25 src/select
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# todo 26-27 src/time
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# todo 28 src/signal
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# todo 29 src/termios
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# todo 30 src/uio
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# todo 31 src/resource
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# todo 32,36,54,61,67 src/misc
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# todo 33 src/mman
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# todo 35 src/sys
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# todo 37 src/passwd
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# todo 37 src/group
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#
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# NOTE: crt/x86_64/crt1.s is NOT a library source — it is assembled into the
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# standalone crt1.o below (the sole crt owner; todo 64 reuses, never rebuilds).
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# Level-independent L1 core (wired today + the pre-plan string slice).
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VLIBC_CORE_SRCS = \
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src/vlibc.c \
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src/internal/assert_fail.c \
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src/internal/errno.c \
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src/internal/syscall_ret.c \
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src/start/libc_start_main.c \
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src/start/exit.c \
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src/start/environ.c \
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src/start/tls.c \
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src/errno/strerror.c \
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src/setjmp/x86_64/setjmp.s \
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src/setjmp/x86_64/longjmp.s \
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src/setjmp/x86_64/sigsetjmp.s \
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src/setjmp/x86_64/siglongjmp.s \
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src/string/strlen.c \
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src/string/strcmp.c \
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src/string/memcpy.c \
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src/string/memmove.c \
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src/string/memset.c \
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src/string/strcat.c \
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src/string/strchr.c \
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src/string/strcoll.c \
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src/string/strcpy.c \
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src/string/strdup.c \
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src/string/memchr.c \
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src/string/memcmp.c \
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src/string/strncmp.c \
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src/string/strncpy.c \
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src/string/strnlen.c \
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src/string/strsignal.c \
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src/string/strspn.c \
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src/string/strstr.c \
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src/string/strtok.c \
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src/malloc/malloc.c \
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src/ctype/ctype.c
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# Profile-gated sources, EXISTING gates preserved (strlcpy/strlcat stay L2
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# BSD, strcasestr stays L3 GNU — NOT promoted). Task 8/9 additions: stpcpy.c
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# (stpcpy/stpncpy) and memccpy.c are WHOLE-FILE L2-gated (#if VLIBC_LEVEL_GE(2)
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# around the entire body), and isascii.c/toascii.c hold only L2 symbols
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# (the header gates their declarations) — all four must be omitted from a
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# level-1 profile, so they join the GE_2 conditional list. Task 10's
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# strings_impl.c is likewise whole-file L2-gated (strcasecmp/strncasecmp/ffs/
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# ffsl/ffsll/bcmp/bcopy/bzero/index/rindex — nothing is POSIX.1-2008 base), so
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# it also joins the GE_2 conditional list. Files with L1
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# bodies plus small L2 sections (strcoll.c, strdup.c) stay in VLIBC_CORE_SRCS
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# and self-gate at level 1.
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VLIBC_LEVEL2_SRCS = src/string/strlcpy.c src/string/strlcat.c \
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src/string/stpcpy.c src/string/memccpy.c \
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src/ctype/isascii.c src/ctype/toascii.c \
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src/string/strings_impl.c
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VLIBC_LEVEL3_SRCS = src/string/strcasestr.c
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vlibc_lib_LTLIBRARIES = libvlibc.la
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libvlibc_la_SOURCES = $(VLIBC_CORE_SRCS)
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if PROFILE_GE_2
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libvlibc_la_SOURCES += $(VLIBC_LEVEL2_SRCS)
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endif
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if PROFILE_GE_3
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libvlibc_la_SOURCES += $(VLIBC_LEVEL3_SRCS)
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endif
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libvlibc_la_LDFLAGS = -version-info 0:0:0 -no-undefined
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# ---- Public headers ------------------------------------------------------
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# The whole public header inventory (the 3 scaffold headers plus todo 5's
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# skeleton); the profile-gated generated features.h is installed separately
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# below.
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vlibc_include_HEADERS = \
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include/vlibc.h \
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include/stddef.h \
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include/string.h \
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include/strings.h \
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include/errno.h \
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include/setjmp.h \
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include/assert.h \
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include/ctype.h \
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include/cpio.h \
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include/float.h \
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include/iso646.h \
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include/limits.h \
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include/stdalign.h \
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include/stdarg.h \
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include/stdatomic.h \
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include/stdbit.h \
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include/stdbool.h \
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include/stdckdint.h \
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include/stdint.h \
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include/stdlib.h \
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include/stdnoreturn.h \
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include/tar.h \
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include/tgmath.h \
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include/threads.h \
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include/uchar.h \
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include/sys/types.h
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# Install location depends on the install method (see configure.ac).
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if INSTALL_OVERWRITE
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vlibc_includedir = $(includedir)
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vlibc_libdir = $(libdir)
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else
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vlibc_includedir = $(prefix)/lib/vlibc/include
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vlibc_libdir = $(prefix)/lib/vlibc/lib
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endif
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# Generated per-profile feature header (see configure.ac); installed under
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# $(vlibc_includedir)/vlibc/. A dedicated primary is used because
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# nodist_nobase_vlibc_include_HEADERS is rejected by automake (the "nobase"
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# prefix is unsupported for this directory) and loses the vlibc/ path.
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vlibc_featuresdir = $(vlibc_includedir)/vlibc
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nodist_vlibc_features_HEADERS = include/vlibc/features.h
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# ---- Compiler drivers ----------------------------------------------------
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bin_SCRIPTS = tools/vlibc-gcc tools/vlibc-clang
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# ---- crt objects ---------------------------------------------------------
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# crt1.o (from crt/x86_64/crt1.s) is built here and ONLY here: todo 64
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# reuses these objects for the shared build and must NOT rebuild them.
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# Built by `make all` via all-local so a static vlibc link always has its
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# entry object available next to the archive.
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crt1.o: crt/x86_64/crt1.s
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$(AM_V_GEN)$(CC) $(AM_CPPFLAGS) $(CPPFLAGS) -c -o $@ $<
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all-local: crt1.o
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# ---- Targets -------------------------------------------------------------
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# layouts/C.md requires `make debug`, `make release`, `make bench` and
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# `make clean`; build outputs land in bin/{release,debug}.
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DEBUG_CFLAGS = -O0 -g3 -DDEBUG
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RELEASE_CFLAGS = -O3 -DNDEBUG
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debug:
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$(MAKE) clean
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$(MAKE) all AM_CFLAGS="$(AM_CFLAGS) $(DEBUG_CFLAGS)"
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$(MKDIR_P) bin/debug
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-cp -P .libs/libvlibc.so* bin/debug/
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-cp .libs/libvlibc.a bin/debug/
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-cp crt1.o bin/debug/
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release:
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$(MAKE) clean
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$(MAKE) all AM_CFLAGS="$(AM_CFLAGS) $(RELEASE_CFLAGS)"
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$(MKDIR_P) bin/release
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-cp -P .libs/libvlibc.so* bin/release/
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-cp .libs/libvlibc.a bin/release/
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-cp crt1.o bin/release/
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bench: all
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$(MAKE) -C benchmarks bench
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# Regenerate compile_commands.json (requires `bear`). Captures both the
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# library sources and the on-demand benchmark harness.
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compile-commands: clean
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bear -- $(MAKE) all
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bear --append -- $(MAKE) -C benchmarks bench_vlibc
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.PHONY: debug release bench compile-commands
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# ---- make check ----------------------------------------------------------
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#
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# Every test binary is a STATIC VLIBC EXECUTABLE: linked with -nostdlib
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# -static -no-pie against crt1.o + a dedicated level-2 test archive. No
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# glibc symbol can resolve, so each test genuinely proves self-hosting.
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#
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# The test archive (libvlibc-check.a) is compiled from the FULL source list
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# (all levels included) at VLIBC_LEVEL=2 — the complete L1+L2 surface —
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# INDEPENDENT of the configured profile. Rationale: some tests exercise
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# L2-gated functions (test_strerror calls strerror_r, future tests call
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# bcopy etc.), which a level-1 configured archive does not provide; the
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# shipped libvlibc.a keeps the profile gating configured at build time.
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# Object files are plain `ar` members compiled directly with $(CC) — no
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# libtool (libtool's build-dir libvlibc.a is a wrapper script, and only
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# .libs/libvlibc.a is linkable, which is a level-gated profile archive).
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#
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# Mechanics (extend here for future tests):
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# - Add the binary to check_PROGRAMS + TESTS with
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# `<bin>_SOURCES = tests/test_x.c`,
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# `<bin>_CFLAGS = $(VLIBC_TEST_CFLAGS)` (renames the object to
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# `<bin>-<src>.o` automatically),
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# `<bin>_LINK = $(VLIBC_TEST_LINK)` and
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# `<bin>_LDADD = $(VLIBC_TEST_LDADD)` (static vlibc link; the crt
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# object + archive must be in LDADD so they follow the test object).
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# - Multi-mode tests run through tests/startup_modes.sh (see that file).
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VLIBC_TEST_LEVEL = 2
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VLIBC_CHECK_SRCS = $(VLIBC_CORE_SRCS) $(VLIBC_LEVEL2_SRCS) \
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$(VLIBC_LEVEL3_SRCS)
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VLIBC_CHECK_OBJECTS_FROM_C = $(VLIBC_CHECK_SRCS:.c=.check.o)
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VLIBC_CHECK_OBJECTS = $(VLIBC_CHECK_OBJECTS_FROM_C:.s=.check.o)
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VLIBC_CHECK_CFLAGS = @VLIBC_CFLAGS@ -DVLIBC_LEVEL=$(VLIBC_TEST_LEVEL) -fno-pic
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# The archive itself (plain ar: members compiled at the test level).
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libvlibc-check.a: $(VLIBC_CHECK_OBJECTS)
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$(AR) $(ARFLAGS) $@ $^
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# Library sources compiled at the test level. Deliberately no
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# -DHAVE_CONFIG_H and no $(DEFS): config.h pins the PROFILE level, which
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# would override -DVLIBC_LEVEL (last definition wins), so the check objects
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# must get their level from <vlibc/features.h> alone.
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%.check.o: %.c
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$(AM_V_CC)$(CC) $(AM_CPPFLAGS) $(CPPFLAGS) $(VLIBC_CHECK_CFLAGS) -c -o $@ $<
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%.check.o: %.s
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$(AM_V_CCAS)$(CC) $(AM_CPPFLAGS) $(CPPFLAGS) -c -o $@ $<
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# Static vlibc link for every check program. automake links
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# "$(<bin>_LINK) $(<bin>_OBJECTS) $(<bin>_LDADD) $(LIBS)", so the entry
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# object, the level-2 archive and libgcc go in LDADD — they MUST follow the
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# test object or the archive would see no undefined symbols and stay
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# unextracted. -nostdlib means -lgcc is not auto-added, so it is spelled
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# out (permitted libgcc helpers).
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VLIBC_TEST_LINK = $(CC) -nostdlib -static -no-pie -o $@
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VLIBC_TEST_LDADD = crt1.o libvlibc-check.a -lgcc
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# Test TUs: no stack protector (the library is protector-free at this stage),
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# non-PIC, level overridden to the test level so L2 declarations are visible.
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VLIBC_TEST_CFLAGS = -DVLIBC_LEVEL=$(VLIBC_TEST_LEVEL) -fno-stack-protector \
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-fno-pic -fno-pie
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check_PROGRAMS = test_syscall test_strerror test_setjmp test_headers \
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test_startup test_malloc test_string test_ctype test_strings
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test_syscall_SOURCES = tests/syscall_test.c
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test_syscall_CFLAGS = $(VLIBC_TEST_CFLAGS)
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test_syscall_DEPENDENCIES = crt1.o libvlibc-check.a
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test_syscall_LINK = $(VLIBC_TEST_LINK)
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test_syscall_LDADD = $(VLIBC_TEST_LDADD)
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test_strerror_SOURCES = tests/test_strerror.c
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test_strerror_CFLAGS = $(VLIBC_TEST_CFLAGS)
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test_strerror_DEPENDENCIES = crt1.o libvlibc-check.a
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test_strerror_LINK = $(VLIBC_TEST_LINK)
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test_strerror_LDADD = $(VLIBC_TEST_LDADD)
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test_setjmp_SOURCES = tests/test_setjmp.c
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test_setjmp_CFLAGS = $(VLIBC_TEST_CFLAGS)
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test_setjmp_DEPENDENCIES = crt1.o libvlibc-check.a
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test_setjmp_LINK = $(VLIBC_TEST_LINK)
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test_setjmp_LDADD = $(VLIBC_TEST_LDADD)
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test_headers_SOURCES = tests/test_headers.c
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test_headers_CFLAGS = $(VLIBC_TEST_CFLAGS)
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test_headers_DEPENDENCIES = crt1.o libvlibc-check.a
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test_headers_LINK = $(VLIBC_TEST_LINK)
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test_headers_LDADD = $(VLIBC_TEST_LDADD)
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test_startup_SOURCES = tests/test_startup.c
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test_startup_CFLAGS = $(VLIBC_TEST_CFLAGS)
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test_startup_DEPENDENCIES = crt1.o libvlibc-check.a
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test_startup_LINK = $(VLIBC_TEST_LINK)
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test_startup_LDADD = $(VLIBC_TEST_LDADD)
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test_malloc_SOURCES = tests/test_malloc.c
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test_malloc_CFLAGS = $(VLIBC_TEST_CFLAGS)
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test_malloc_DEPENDENCIES = crt1.o libvlibc-check.a
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test_malloc_LINK = $(VLIBC_TEST_LINK)
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test_malloc_LDADD = $(VLIBC_TEST_LDADD)
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test_string_SOURCES = tests/test_string.c
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test_string_CFLAGS = $(VLIBC_TEST_CFLAGS)
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test_string_DEPENDENCIES = crt1.o libvlibc-check.a
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test_string_LINK = $(VLIBC_TEST_LINK)
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test_string_LDADD = $(VLIBC_TEST_LDADD)
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test_ctype_SOURCES = tests/test_ctype.c
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test_ctype_CFLAGS = $(VLIBC_TEST_CFLAGS)
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test_ctype_DEPENDENCIES = crt1.o libvlibc-check.a
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test_ctype_LINK = $(VLIBC_TEST_LINK)
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test_ctype_LDADD = $(VLIBC_TEST_LDADD)
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test_strings_SOURCES = tests/test_strings.c
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test_strings_CFLAGS = $(VLIBC_TEST_CFLAGS)
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test_strings_DEPENDENCIES = crt1.o libvlibc-check.a
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test_strings_LINK = $(VLIBC_TEST_LINK)
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test_strings_LDADD = $(VLIBC_TEST_LDADD)
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# test_startup's default mode exits 42 by design, so it is NOT a bare TESTS
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# entry; tests/startup_modes.sh runs its full mode matrix and the -f failure
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# scenarios of the other binaries. test_malloc/test_string/test_ctype/
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# test_strings default to the happy mode (exit 0 on all-pass) and are bare
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# TESTS entries; their -f/-p modes stay runnable by hand.
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TESTS = test_syscall test_strerror test_setjmp test_headers \
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test_malloc test_string test_ctype test_strings \
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tests/startup_modes.sh
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CLEANFILES = crt1.o libvlibc-check.a $(VLIBC_CHECK_OBJECTS)
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# Distributed but not installed / not otherwise picked up by automake.
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# (TESTS scripts are not auto-distributed, so the mode runner is explicit.)
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EXTRA_DIST = \
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crt/x86_64/crt1.s \
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include/vlibc/internal/test.h \
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tests/conformance/symbols.list \
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tests/startup_modes.sh \
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arch/x86_64/syscall_arch.h \
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src/internal/atomic.h \
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src/internal/errno.h \
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src/internal/libc.h \
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src/internal/malloc.h \
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src/internal/syscall.h \
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src/internal/types.h \
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src/start/start.h \
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src/start/tcb.h
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