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Centos7 build target #69

Closed haesbaert closed 1 month ago

haesbaert commented 1 month ago

It seems the common practice to have a "portable" archive or binary is to compile stuff in a relic linux, the oldest we are interested is centos7.

This adds a make centos7 build target that compiles quark in a centos7 container.

To generate bpf_prog.o we would need a reasonably recent clang, which needs a newer gcc to be able to build, so we would have to compile gcc, then compile clang, to compile bpf_prog.o, we could also just use zig cc like $(OTHERPROJECT) does. But we went a different route:

Since bpf_prog.o is not used in userland, it's just the bpf program bundled that is installed in the kernel we do the following:

  1. Build bpf_prog.o and bpf_prog_skel.h in a recent ubuntu container, which has a shiny clang.
  2. Build the rest of quark in centos7.

This will be needed for the upcoming go distribution where we will ship libquark_big.a, which will be built by CI automagically, this way libquark_big.a should work on every linux on amd64.

Still missing the bits for arm64.

Weird bits of this commit:

The linker is happy and so are we. Proof that we require no symbol later than 2.17.

[haesbaert@centos7 ~]$ TERM=vt100 objdump -T quark-mon |grep GLIBC|sort 0000000000000000 DF UND 0000000000000000 GLIBC_2.14 memcpy 0000000000000000 DF UND 0000000000000000 GLIBC_2.17 clock_gettime 0000000000000000 DF UND 0000000000000000 GLIBC_2.2.5 access 0000000000000000 DF UND 0000000000000000 GLIBC_2.2.5 asprintf 0000000000000000 DF UND 0000000000000000 GLIBC_2.2.5 assert_fail 0000000000000000 DF UND 0000000000000000 GLIBC_2.2.5 bsearch 0000000000000000 DF UND 0000000000000000 GLIBC_2.2.5 calloc 0000000000000000 DF UND 0000000000000000 GLIBC_2.2.5 chdir 0000000000000000 DF UND 0000000000000000 GLIBC_2.2.5 chroot 0000000000000000 DF UND 0000000000000000 GLIBC_2.2.5 close 0000000000000000 DF UND 0000000000000000 GLIBC_2.2.5 dirname 0000000000000000 DF UND 0000000000000000 GLIBC_2.2.5 err 0000000000000000 DF UND 0000000000000000 GLIBC_2.2.5 __errno_location 0000000000000000 DF UND 0000000000000000 GLIBC_2.2.5 errx 0000000000000000 DF UND 0000000000000000 GLIBC_2.2.5 exit 0000000000000000 DF UND 0000000000000000 GLIBC_2.2.5 fclose 0000000000000000 DF UND 0000000000000000 GLIBC_2.2.5 fcntl 0000000000000000 DF UND 0000000000000000 GLIBC_2.2.5 fdopen 0000000000000000 DF UND 0000000000000000 GLIBC_2.2.5 feof 0000000000000000 DF UND 0000000000000000 GLIBC_2.2.5 fflush 0000000000000000 DF UND 0000000000000000 GLIBC_2.2.5 fgets 0000000000000000 DF UND 0000000000000000 GLIBC_2.2.5 fmemopen 0000000000000000 DF UND 0000000000000000 GLIBC_2.2.5 fopen 0000000000000000 DF UND 0000000000000000 GLIBC_2.2.5 fopen64 0000000000000000 DF UND 0000000000000000 GLIBC_2.2.5 fprintf 0000000000000000 DF UND 0000000000000000 GLIBC_2.2.5 fread 0000000000000000 DF UND 0000000000000000 GLIBC_2.2.5 free 0000000000000000 DF UND 0000000000000000 GLIBC_2.2.5 fscanf 0000000000000000 DF UND 0000000000000000 GLIBC_2.2.5 fseek 0000000000000000 DF UND 0000000000000000 GLIBC_2.2.5 ftell 0000000000000000 DF UND 0000000000000000 GLIBC_2.2.5 fts_children 0000000000000000 DF UND 0000000000000000 GLIBC_2.2.5 fts_close 0000000000000000 DF UND 0000000000000000 GLIBC_2.2.5 fts_open 0000000000000000 DF UND 0000000000000000 GLIBC_2.2.5 fts_read 0000000000000000 DF UND 0000000000000000 GLIBC_2.2.5 fts_set 0000000000000000 DF UND 0000000000000000 GLIBC_2.2.5 fxstat 0000000000000000 DF UND 0000000000000000 GLIBC_2.2.5 getdelim 0000000000000000 DF UND 0000000000000000 GLIBC_2.2.5 getenv 0000000000000000 DF UND 0000000000000000 GLIBC_2.2.5 geteuid 0000000000000000 DF UND 0000000000000000 GLIBC_2.2.5 get_nprocs_conf 0000000000000000 DF UND 0000000000000000 GLIBC_2.2.5 getopt 0000000000000000 DF UND 0000000000000000 GLIBC_2.2.5 getpagesize 0000000000000000 DF UND 0000000000000000 GLIBC_2.2.5 getpid 0000000000000000 DF UND 0000000000000000 GLIBC_2.2.5 getpwnam 0000000000000000 DF UND 0000000000000000 GLIBC_2.2.5 getrlimit64 0000000000000000 DF UND 0000000000000000 GLIBC_2.2.5 ioctl 0000000000000000 DF UND 0000000000000000 GLIBC_2.2.5 libc_start_main 0000000000000000 DF UND 0000000000000000 GLIBC_2.2.5 lseek64 0000000000000000 DF UND 0000000000000000 GLIBC_2.2.5 malloc 0000000000000000 DF UND 0000000000000000 GLIBC_2.2.5 memchr 0000000000000000 DF UND 0000000000000000 GLIBC_2.2.5 memcmp 0000000000000000 DF UND 0000000000000000 GLIBC_2.2.5 memmove 0000000000000000 DF UND 0000000000000000 GLIBC_2.2.5 memset 0000000000000000 DF UND 0000000000000000 GLIBC_2.2.5 mkdir 0000000000000000 DF UND 0000000000000000 GLIBC_2.2.5 mmap 0000000000000000 DF UND 0000000000000000 GLIBC_2.2.5 mmap64 0000000000000000 DF UND 0000000000000000 GLIBC_2.2.5 munmap 0000000000000000 DF UND 0000000000000000 GLIBC_2.2.5 open 0000000000000000 DF UND 0000000000000000 GLIBC_2.2.5 open64 0000000000000000 DF UND 0000000000000000 GLIBC_2.2.5 printf 0000000000000000 DF UND 0000000000000000 GLIBC_2.2.5 qsort 0000000000000000 DF UND 0000000000000000 GLIBC_2.2.5 read 0000000000000000 DF UND 0000000000000000 GLIBC_2.2.5 realloc 0000000000000000 DF UND 0000000000000000 GLIBC_2.2.5 rewind 0000000000000000 DF UND 0000000000000000 GLIBC_2.2.5 setgroups 0000000000000000 DF UND 0000000000000000 GLIBC_2.2.5 setresgid 0000000000000000 DF UND 0000000000000000 GLIBC_2.2.5 setresuid 0000000000000000 DF UND 0000000000000000 GLIBC_2.2.5 setrlimit64 0000000000000000 DF UND 0000000000000000 GLIBC_2.2.5 sigaction 0000000000000000 DF UND 0000000000000000 GLIBC_2.2.5 snprintf 0000000000000000 DF UND 0000000000000000 GLIBC_2.2.5 sprintf 0000000000000000 DF UND 0000000000000000 GLIBC_2.2.5 sscanf 0000000000000000 DF UND 0000000000000000 GLIBC_2.2.5 statfs64 0000000000000000 DF UND 0000000000000000 GLIBC_2.2.5 strcat 0000000000000000 DF UND 0000000000000000 GLIBC_2.2.5 strchr 0000000000000000 DF UND 0000000000000000 GLIBC_2.2.5 strcmp 0000000000000000 DF UND 0000000000000000 GLIBC_2.2.5 strcpy 0000000000000000 DF UND 0000000000000000 GLIBC_2.2.5 strdup 0000000000000000 DF UND 0000000000000000 GLIBC_2.2.5 strerror 0000000000000000 DF UND 0000000000000000 GLIBC_2.2.5 strlen 0000000000000000 DF UND 0000000000000000 GLIBC_2.2.5 strncmp 0000000000000000 DF UND 0000000000000000 GLIBC_2.2.5 strncpy 0000000000000000 DF UND 0000000000000000 GLIBC_2.2.5 strndup 0000000000000000 DF UND 0000000000000000 GLIBC_2.2.5 strnlen 0000000000000000 DF UND 0000000000000000 GLIBC_2.2.5 strrchr 0000000000000000 DF UND 0000000000000000 GLIBC_2.2.5 strstr 0000000000000000 DF UND 0000000000000000 GLIBC_2.2.5 strtoll 0000000000000000 DF UND 0000000000000000 GLIBC_2.2.5 strtoull 0000000000000000 DF UND 0000000000000000 GLIBC_2.2.5 syscall 0000000000000000 DF UND 0000000000000000 GLIBC_2.2.5 sysconf 0000000000000000 DF UND 0000000000000000 GLIBC_2.2.5 uname 0000000000000000 DF UND 0000000000000000 GLIBC_2.2.5 unlink 0000000000000000 DF UND 0000000000000000 GLIBC_2.2.5 vfprintf 0000000000000000 DF UND 0000000000000000 GLIBC_2.2.5 vsnprintf 0000000000000000 DF UND 0000000000000000 GLIBC_2.2.5 vsprintf 0000000000000000 DF UND 0000000000000000 GLIBC_2.2.5 warn 0000000000000000 DF UND 0000000000000000 GLIBC_2.2.5 warnx 0000000000000000 DF UND 0000000000000000 GLIBC_2.2.5 write 0000000000000000 DF UND 0000000000000000 GLIBC_2.2.5 xpg_basename 0000000000000000 DF UND 0000000000000000 GLIBC_2.3.2 epoll_ctl 0000000000000000 DF UND 0000000000000000 GLIBC_2.3.2 epoll_wait 0000000000000000 DF UND 0000000000000000 GLIBC_2.3.4 __xpg_strerror_r 0000000000000000 DF UND 0000000000000000 GLIBC_2.3 ctype_b_loc 0000000000000000 DF UND 0000000000000000 GLIBC_2.3 realpath 0000000000000000 DF UND 0000000000000000 GLIBC_2.4 faccessat 0000000000000000 DF UND 0000000000000000 GLIBC_2.4 openat 0000000000000000 DF UND 0000000000000000 GLIBC_2.4 readlinkat 0000000000000000 DF UND 0000000000000000 GLIBC_2.7 isoc99_fscanf 0000000000000000 DF UND 0000000000000000 GLIBC_2.7 isoc99_sscanf 0000000000000000 DF UND 0000000000000000 GLIBC_2.9 epoll_create1 0000000000000000 DO UND 0000000000000000 GLIBC_2.2.5 optarg 0000000000000000 DO UND 0000000000000000 GLIBC_2.2.5 __progname 0000000000000000 DO UND 0000000000000000 GLIBC_2.2.5 program_invocation_short_name 0000000000000000 DO UND 0000000000000000 GLIBC_2.2.5 stderr 0000000000000000 DO UND 0000000000000000 GLIBC_2.2.5 stdout