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dlopen() is in SUSv2 and all targeted Unix systems have it. We still need replacement functions for Windows, but we don't need a configure probe for that. Since it's no longer needed by other operating systems, rename dlopen.c to win32dlopen.c and move the declarations into win32_port.h. Likewise, the macros RTLD_NOW and RTLD_GLOBAL now only need to be defined on Windows, since all targeted Unix systems have 'em. Reviewed-by: Tom Lane <tgl@sss.pgh.pa.us> Reviewed-by: Andres Freund <andres@anarazel.de> Discussion: https://postgr.es/m/CA+hUKGJ3LHeP9w5Fgzdr4G8AnEtJ=z=p6hGDEm4qYGEUX5B6fQ@mail.gmail.com |
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bsearch_arg.c | ||
chklocale.c | ||
dirent.c | ||
dirmod.c | ||
explicit_bzero.c | ||
fdatasync.c | ||
getaddrinfo.c | ||
getopt_long.c | ||
getopt.c | ||
getpeereid.c | ||
getrusage.c | ||
gettimeofday.c | ||
inet_aton.c | ||
inet_net_ntop.c | ||
kill.c | ||
link.c | ||
Makefile | ||
mkdtemp.c | ||
noblock.c | ||
open.c | ||
path.c | ||
pg_bitutils.c | ||
pg_crc32c_armv8_choose.c | ||
pg_crc32c_armv8.c | ||
pg_crc32c_sb8.c | ||
pg_crc32c_sse42_choose.c | ||
pg_crc32c_sse42.c | ||
pg_strong_random.c | ||
pgcheckdir.c | ||
pgmkdirp.c | ||
pgsleep.c | ||
pgstrcasecmp.c | ||
pgstrsignal.c | ||
pqsignal.c | ||
pread.c | ||
preadv.c | ||
pthread_barrier_wait.c | ||
pthread-win32.h | ||
pwrite.c | ||
pwritev.c | ||
qsort_arg.c | ||
qsort.c | ||
quotes.c | ||
README | ||
setenv.c | ||
snprintf.c | ||
strerror.c | ||
strlcat.c | ||
strlcpy.c | ||
strnlen.c | ||
strtof.c | ||
system.c | ||
tar.c | ||
thread.c | ||
unsetenv.c | ||
win32.ico | ||
win32dlopen.c | ||
win32env.c | ||
win32error.c | ||
win32ntdll.c | ||
win32security.c | ||
win32setlocale.c | ||
win32stat.c | ||
win32ver.rc |
src/port/README libpgport ========= libpgport must have special behavior. It supplies functions to both libraries and applications. However, there are two complexities: 1) Libraries need to use object files that are compiled with exactly the same flags as the library. libpgport might not use the same flags, so it is necessary to recompile the object files for individual libraries. This is done by removing -lpgport from the link line: # Need to recompile any libpgport object files LIBS := $(filter-out -lpgport, $(LIBS)) and adding infrastructure to recompile the object files: OBJS= execute.o typename.o descriptor.o data.o error.o prepare.o memory.o \ connect.o misc.o path.o exec.o \ $(filter strlcat.o, $(LIBOBJS)) The problem is that there is no testing of which object files need to be added, but missing functions usually show up when linking user applications. 2) For applications, we use -lpgport before -lpq, so the static files from libpgport are linked first. This avoids having applications dependent on symbols that are _used_ by libpq, but not intended to be exported by libpq. libpq's libpgport usage changes over time, so such a dependency is a problem. Windows, Linux, AIX, and macOS use an export list to control the symbols exported by libpq.