Question About Compiling to 64KB

[liusuchao]

Hello,

First of all, thank you for creating such a wonderful library that greatly simplifies our application development. It's fantastic!

I have a question regarding the GitHub homepage, which mentions compiling down to 64KB. I'm only able to achieve a compilation size of 180KB. Could you please help me understand how to compile it to 64KB?

Here are my compilation environment details:

Linux 7737b1369220 6.6.32-linuxkit #1 SMP Thu Jun 13 14:13:01 UTC 2024 aarch64 aarch64 aarch64 GNU/Linux
tbox version 8ada0ab7f7eb98fa5eb4928b61b7701b0126a721

Here are the commands I used for compilation:

cd ${RE_LIB_PACKAGES_DIR}/tbox
xmake  f -p linux --micro=y --demo=n --small=y --info=n --force-utf8=n --xml=n --sqlite3=n --openssl=n --polarssl=n --mode=release --mysql=n  --exception=n --cc=${ZZ_CROSS_COMPILER_CC} --cflags="-Os " 
xmake 

xmake install -o ${RE_LIB_ROOTFS_DIR}

Here are the logs printed during compilation:

checking for architecture ... arm64
checking for wchar ... no
checking for libc_memcpy ... ok
checking for libc_strlen ... ok
checking for libc_strnlen ... no
checking for libc_strstr ... ok
checking for libc_strchr ... ok
checking for libc_strrchr ... ok
checking for libc_strcasestr ... no
checking for libc_strcmp ... ok
checking for libc_strcasecmp ... no
checking for libc_strncmp ... ok
checking for libc_strncasecmp ... no
checking for libc_wcscat ... ok
checking for libc_wcsncat ... ok
checking for libc_wcscpy ... ok
checking for libc_memmem ... no
checking for libc_memmove ... ok
checking for libc_memset ... ok
checking for libc_memcmp ... ok
checking for libc_strcat ... ok
checking for libc_strlcpy ... no
checking for libc_strcpy ... ok
checking for libc_strncat ... ok
checking for libc_strncpy ... ok
checking for libc_wcsncpy ... ok
checking for libc_wcslen ... ok
checking for libc_wcslcpy ... no
checking for libc_wcsnlen ... no
checking for libc_wcsstr ... ok
checking for libc_wcscmp ... ok
checking for libc_wcscasestr ... no
checking for libc_wcscasecmp ... no
checking for libc_wcsncmp ... ok
checking for libc_wcsncasecmp ... no
checking for libc_wcstombs ... ok
checking for libc_mbstowcs ... ok
checking for libc_gmtime ... ok
checking for libc_mktime ... ok
checking for libc_localtime ... ok
checking for libc_gettimeofday ... ok
checking for libc_signal ... ok
checking for libc_setjmp ... ok
checking for libc_kill ... no
checking for libc_sigsetjmp ... no
checking for libc_backtrace ... ok
checking for libc_setlocale ... ok
checking for libc_fputs ... ok
checking for libc_fgets ... ok
checking for libc_ungetc ... ok
checking for libc_fgetc ... ok
checking for libc_fputc ... ok
checking for libc_fread ... ok
checking for libc_srandom ... no
checking for libc_random ... no
checking for libc_fwrite ... ok
checking for libm_sincos ... no
checking for libm_sincosf ... no
checking for libm_log2 ... ok
checking for libm_sqrt ... ok
checking for libm_log2f ... ok
checking for libm_sqrtf ... ok
checking for libm_acos ... ok
checking for libm_acosf ... ok
checking for libm_asin ... ok
checking for libm_asinf ... ok
checking for libm_pow ... ok
checking for libm_powf ... ok
checking for libm_fmod ... ok
checking for libm_fmodf ... ok
checking for libm_tanf ... ok
checking for libm_tan ... ok
checking for libm_atan ... ok
checking for libm_atanf ... ok
checking for libm_atan2 ... ok
checking for libm_atan2f ... ok
checking for libm_cos ... ok
checking for libm_cosf ... ok
checking for libm_sin ... ok
checking for libm_sinf ... ok
checking for libm_exp ... ok
checking for libm_expf ... ok
checking for posix_select ... ok
checking for posix_poll ... ok
checking for posix_pthread_mutex_init ... ok
checking for posix_pthread_create ... ok
checking for posix_pthread_setspecific ... ok
checking for posix_pthread_getspecific ... ok
checking for posix_pthread_key_create ... ok
checking for posix_pthread_key_delete ... ok
checking for posix_pthread_setaffinity_np ... no
checking for posix_opendir ... ok
checking for posix_socket ... ok
checking for posix_dlopen ... ok
checking for posix_open ... ok
checking for posix_stat64 ... no
checking for posix_gethostname ... no
checking for posix_lstat64 ... no
checking for posix_sysconf ... ok
checking for posix_getifaddrs ... no
checking for posix_getpagesize ... no
checking for posix_sched_setaffinity ... no
checking for posix_regcomp ... ok
checking for posix_readv ... ok
checking for posix_sched_yield ... ok
checking for posix_regexec ... ok
checking for posix_writev ... ok
checking for posix_preadv ... no
checking for posix_pwritev ... no
checking for posix_pread64 ... no
checking for posix_copyfile ... no
checking for posix_pwrite64 ... no
checking for posix_fdatasync ... no
checking for posix_sendfile ... ok
checking for posix_epoll_wait ... ok
checking for posix_execvpe ... no
checking for posix_epoll_create ... ok
checking for posix_execvp ... ok
checking for posix_vfork ... no
checking for posix_waitpid ... ok
checking for posix_fork ... ok
checking for posix_getrlimit ... ok
checking for posix_getdtablesize ... no
checking for posix_getaddrinfo ... no
checking for posix_fcntl ... ok
checking for posix_mkfifo ... ok
checking for posix_pipe ... ok
checking for posix_pipe2 ... no
checking for posix_futimens ... no
checking for posix_getnameinfo ... no
checking for posix_mmap ... ok
checking for posix_gethostbyname ... ok
checking for posix_gethostbyaddr ... ok
checking for posix_utimensat ... no
checking for valgrind_VALGRIND_STACK_REGISTER ... no
checking for posix_posix_spawnp ... ok
checking for posix_sem_init ... ok
checking for bsd_flock ... ok
checking for posix_posix_spawn_file_actions_addchdir_np ... no
checking for systemv_semget ... ok
checking for linux_inotify_init ... ok
checking for systemv_semtimedop ... no
checking for feature_anonymous_union ... no
checking for keyword_thread_local ... ok
checking for keyword_thread ... ok
checking for linux_ifaddrs ... ok
generating src/tbox/tbox.config.h.in ... ok
[  3%]: cache compiling.release src/tbox/tbox.c
[  4%]: cache compiling.release src/tbox/libc/string/memset.c
[  6%]: cache compiling.release src/tbox/libc/string/memmov.c
[  8%]: cache compiling.release src/tbox/libc/string/memcpy.c
[  9%]: cache compiling.release src/tbox/libc/string/memcmp.c
[ 11%]: cache compiling.release src/tbox/libc/string/strstr.c
[ 12%]: cache compiling.release src/tbox/libc/string/strdup.c
[ 14%]: cache compiling.release src/tbox/libc/string/strlen.c
[ 16%]: cache compiling.release src/tbox/libc/string/strnlen.c
[ 17%]: cache compiling.release src/tbox/libc/string/strcmp.c
[ 19%]: cache compiling.release src/tbox/libc/string/strncmp.c
[ 20%]: cache compiling.release src/tbox/libc/string/stricmp.c
[ 22%]: cache compiling.release src/tbox/libc/string/strnicmp.c
[ 24%]: cache compiling.release src/tbox/libc/string/strlcpy.c
[ 25%]: cache compiling.release src/tbox/libc/string/strncpy.c
[ 27%]: cache compiling.release src/tbox/libc/stdio/vsnprintf.c
[ 29%]: cache compiling.release src/tbox/libc/stdio/snprintf.c
[ 30%]: cache compiling.release src/tbox/libc/stdio/printf.c
[ 32%]: cache compiling.release src/tbox/libc/stdlib/stdlib.c
[ 33%]: cache compiling.release src/tbox/libc/impl/libc.c
[ 35%]: cache compiling.release src/tbox/libm/impl/libm.c
[ 37%]: cache compiling.release src/tbox/math/impl/math.c
[ 38%]: cache compiling.release src/tbox/utils/used.c
[ 40%]: cache compiling.release src/tbox/utils/bits.c
[ 41%]: cache compiling.release src/tbox/utils/trace.c
[ 43%]: cache compiling.release src/tbox/utils/singleton.c
[ 45%]: cache compiling.release src/tbox/memory/allocator.c
[ 46%]: cache compiling.release src/tbox/memory/native_allocator.c
[ 48%]: cache compiling.release src/tbox/memory/static_allocator.c
[ 50%]: cache compiling.release src/tbox/memory/fixed_pool.c
[ 51%]: cache compiling.release src/tbox/memory/impl/static_fixed_pool.c
[ 53%]: cache compiling.release src/tbox/memory/impl/static_large_allocator.c
[ 54%]: cache compiling.release src/tbox/memory/impl/memory.c
[ 56%]: cache compiling.release src/tbox/network/ipv4.c
[ 58%]: cache compiling.release src/tbox/network/ipv6.c
[ 59%]: cache compiling.release src/tbox/network/unixaddr.c
[ 61%]: cache compiling.release src/tbox/network/ipaddr.c
[ 62%]: cache compiling.release src/tbox/network/impl/network.c
[ 64%]: cache compiling.release src/tbox/platform/page.c
[ 66%]: cache compiling.release src/tbox/platform/time.c
[ 67%]: cache compiling.release src/tbox/platform/file.c
[ 69%]: cache compiling.release src/tbox/platform/path.c
[ 70%]: cache compiling.release src/tbox/platform/sched.c
[ 72%]: cache compiling.release src/tbox/platform/print.c
[ 74%]: cache compiling.release src/tbox/platform/thread.c
[ 75%]: cache compiling.release src/tbox/platform/socket.c
[ 77%]: cache compiling.release src/tbox/platform/addrinfo.c
[ 79%]: cache compiling.release src/tbox/platform/poller.c
[ 80%]: cache compiling.release src/tbox/platform/mutex.c
[ 82%]: cache compiling.release src/tbox/platform/semaphore.c
[ 83%]: cache compiling.release src/tbox/platform/native_memory.c
[ 85%]: cache compiling.release src/tbox/platform/impl/platform.c
[ 87%]: cache compiling.release src/tbox/platform/impl/pollerdata.c
[ 88%]: cache compiling.release src/tbox/container/iterator.c
[ 90%]: cache compiling.release src/tbox/container/list_entry.c
[ 91%]: cache compiling.release src/tbox/container/single_list_entry.c
[ 93%]: cache compiling.release src/tbox/container/array_iterator.c
[ 95%]: cache compiling.release src/tbox/algorithm/binary_find.c
[ 96%]: cache compiling.release src/tbox/algorithm/binary_find_if.c
[ 98%]: archiving.release libtbox.a
[100%]: build ok, spent 1.403s
installing tbox ..
installing tbox to /home/user/data/re_lib/arch/aarch64/rootfs ..
install ok!
user@7737b1369220:~/data/re_lib/arch/aarch64/packages/tbox$ ls ./build/linux/arm64/release/libtbox.a -lh
-rw-r--r-- 1 user user 180K Aug 13 15:31 ./build/linux/arm64/release/libtbox.a`

Thank you!

[waruqi]

不是说的库本身大小，是实际 link 后的可执行文件大小。

-rwxr-xr-x  1 ruki  staff  67344  8 14 09:19 build/macosx/x86_64/release/demo

[Issues-translate-bot]

Bot detected the issue body's language is not English, translate it automatically.

---

It does not mean the size of the library itself, but the actual size of the executable file after linking.

-rwxr-xr-x 1 ruki staff 67344 8 14 09:19 build/macosx/x86_64/release/demo

[liusuchao]

Thank you very much for your reply. Very well.