From 51a5e0e354dcd98b24636be43065e6b0105996a4 Mon Sep 17 00:00:00 2001
From: pmp-p <mail.peny@free.fr>
Date: Mon, 15 Jul 2024 08:51:50 +0200
Subject: [PATCH] move ecpg bits to static core

---
 cibuild/linkweb.sh | 20 +++++++++++++---
 patches/pg_main.c  | 57 ++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 74 insertions(+), 3 deletions(-)

diff --git a/cibuild/linkweb.sh b/cibuild/linkweb.sh
index 39c62f88..a2d33d8e 100755
--- a/cibuild/linkweb.sh
+++ b/cibuild/linkweb.sh
@@ -34,11 +34,12 @@ pushd src
      -c -o ../pg_initdb.o ${PGSRC}/src/bin/initdb/initdb.c $NOWARN || exit 34
 
     #
-    emcc -DPG_LINK_MAIN=1 -DPREFIX=${PGROOT} ${CC_PGLITE} \
+    emcc -DPG_LINK_MAIN=1 -DPREFIX=${PGROOT} ${CC_PGLITE} -DPG_EC_STATIC \
      -I${PGROOT}/include -I${PGROOT}/include/postgresql/server -I${PGROOT}/include/postgresql/internal \
      -c -o ./backend/tcop/postgres.o ${PGSRC}/src/backend/tcop/postgres.c $NOWARN|| exit 39
 
-    EMCC_CFLAGS="${CC_PGLITE} -DPREFIX=${PGROOT} -DPG_INITDB_MAIN=1 $NOWARN" emmake make backend/main/main.o backend/utils/init/postinit.o || exit 41
+    EMCC_CFLAGS="${CC_PGLITE} -DPREFIX=${PGROOT} -DPG_INITDB_MAIN=1 $NOWARN" \
+     emmake make backend/main/main.o backend/utils/init/postinit.o || exit 41
 popd
 
 
@@ -80,8 +81,21 @@ then
     PG_L="$PG_L -L../../src/interfaces/ecpg/ecpglib ../../src/interfaces/ecpg/ecpglib/libecpg.so /tmp/libduckdb.so -lstdc++"
 else
     PG_L="$PG_L -L../../src/interfaces/ecpg/ecpglib ../../src/interfaces/ecpg/ecpglib/libecpg.so"
+    PG_L="../../src/common/libpgcommon_srv.a ../../src/port/libpgport_srv.a ../.././src/interfaces/libpq/libpq.a"
+
 fi
 
+# ../../src/common/libpgcommon_shlib.a"
+# ./src/common/libpgcommon.a: binary file matches
+# ./src/common/libpgcommon_shlib.a: binary file matches
+# error: undefined symbol: fsync_pgdata (referenced by root reference (e.g. compiled C/C++ code))
+# error: undefined symbol: get_restricted_token (referenced by root reference (e.g. compiled C/C++ code))
+# error: undefined symbol: pg_malloc_extended (referenced by root reference (e.g. compiled C/C++ code))
+# error: undefined symbol: pg_realloc (referenced by root reference (e.g. compiled C/C++ code))
+# error: undefined symbol: pg_strdup (referenced by root reference (e.g. compiled C/C++ code))
+# error: undefined symbol: simple_prompt (referenced by root reference (e.g. compiled C/C++ code))
+
+
 
 ## \
 # /opt/python-wasm-sdk/devices/emsdk/usr/lib/libxml2.a \
@@ -206,7 +220,7 @@ emcc $EMCC_WEB -fPIC -sMAIN_MODULE=2 \
 mkdir -p ${WEBROOT}
 
 cp -v postgres.* ${WEBROOT}/
-cp ${PGROOT}/lib/libecpg.so ${WEBROOT}/
+#cp ${PGROOT}/lib/libecpg.so ${WEBROOT}/
 cp ${PGROOT}/sdk/*.tar ${WEBROOT}/
 for tarf in ${WEBROOT}/*.tar
 do
diff --git a/patches/pg_main.c b/patches/pg_main.c
index bfb403b5..d16c91fc 100644
--- a/patches/pg_main.c
+++ b/patches/pg_main.c
@@ -1,6 +1,63 @@
 
 #if defined(PG_MAIN)
 
+#if defined(PG_EC_STATIC)
+#warning "PG_EC_STATIC"
+
+EMSCRIPTEN_KEEPALIVE void
+fsync_pgdata(const char *pg_data, int serverVersion) {
+    // stub
+}
+
+EMSCRIPTEN_KEEPALIVE void
+get_restricted_token(void) {
+    // stub
+}
+
+EMSCRIPTEN_KEEPALIVE void *
+pg_malloc(size_t size)
+{
+	return malloc(size);
+}
+EMSCRIPTEN_KEEPALIVE void *
+pg_malloc_extended(size_t size, int flags) {
+    return malloc(size);
+}
+
+EMSCRIPTEN_KEEPALIVE void *
+pg_realloc(void *ptr, size_t size) {
+    return realloc(ptr, size);
+}
+
+EMSCRIPTEN_KEEPALIVE char *
+pg_strdup(const char *in) {
+	char	   *tmp;
+
+	if (!in)
+	{
+		fprintf(stderr,
+				_("cannot duplicate null pointer (internal error)\n"));
+		exit(EXIT_FAILURE);
+	}
+	tmp = strdup(in);
+	if (!tmp)
+	{
+		fprintf(stderr, _("out of memory\n"));
+		exit(EXIT_FAILURE);
+	}
+	return tmp;
+}
+
+EMSCRIPTEN_KEEPALIVE char *
+simple_prompt(const char *prompt, bool echo) {
+    return pg_strdup("");
+}
+
+
+
+#endif
+
+
 bool is_node = false;
 bool is_repl = true;