shared: Add more dlopen() tests

Add dlopen_dw(), dlopen_elf() and dlopen_pcre2() to the dlopen test.
To enable adding dlopen_pcre2(), we move pcre2-dlopen.h/c from
src/journal to src/shared.

3 files changed, 0 insertions, 64 deletions

diff --git a/src/journal/meson.build b/src/journal/meson.build
index 73265e2c6d..ff9463f7c4 100644
--- a/src/journal/meson.build
+++ b/src/journal/meson.build
@@ -49,8 +49,6 @@ systemd_cat_sources = files('cat.c')
 
 journalctl_sources = files('''
         journalctl.c
-        pcre2-dlopen.c
-        pcre2-dlopen.h
 '''.split())
 
 if install_sysconfdir_samples
diff --git a/src/journal/pcre2-dlopen.c b/src/journal/pcre2-dlopen.c
deleted file mode 100644
index 475d7eb26d..0000000000
--- a/src/journal/pcre2-dlopen.c
+++ /dev/null
@@ -1,44 +0,0 @@
-/* SPDX-License-Identifier: LGPL-2.1-or-later */
-
-#include "dlfcn-util.h"
-#include "log.h"
-#include "pcre2-dlopen.h"
-
-#if HAVE_PCRE2
-static void *pcre2_dl = NULL;
-
-pcre2_match_data* (*sym_pcre2_match_data_create)(uint32_t, pcre2_general_context *);
-void (*sym_pcre2_match_data_free)(pcre2_match_data *);
-void (*sym_pcre2_code_free)(pcre2_code *);
-pcre2_code* (*sym_pcre2_compile)(PCRE2_SPTR, PCRE2_SIZE, uint32_t, int *, PCRE2_SIZE *, pcre2_compile_context *);
-int (*sym_pcre2_get_error_message)(int, PCRE2_UCHAR *, PCRE2_SIZE);
-int (*sym_pcre2_match)(const pcre2_code *, PCRE2_SPTR, PCRE2_SIZE, PCRE2_SIZE, uint32_t, pcre2_match_data *, pcre2_match_context *);
-PCRE2_SIZE* (*sym_pcre2_get_ovector_pointer)(pcre2_match_data *);
-
-int dlopen_pcre2(void) {
-        /* So here's something weird: PCRE2 actually renames the symbols exported by the library via C
-         * macros, so that the exported symbols carry a suffix "_8" but when used from C the suffix is
-         * gone. In the argument list below we ignore this mangling. Surprisingly (at least to me), we
-         * actually get away with that. That's because DLSYM_ARG() useses STRINGIFY() to generate a string
-         * version of the symbol name, and that resolves the macro mapping implicitly already, so that the
-         * string actually contains the "_8" suffix already due to that and we don't have to append it
-         * manually anymore. C is weird. 🤯 */
-
-        return dlopen_many_sym_or_warn(
-                        &pcre2_dl, "libpcre2-8.so.0", LOG_ERR,
-                        DLSYM_ARG(pcre2_match_data_create),
-                        DLSYM_ARG(pcre2_match_data_free),
-                        DLSYM_ARG(pcre2_code_free),
-                        DLSYM_ARG(pcre2_compile),
-                        DLSYM_ARG(pcre2_get_error_message),
-                        DLSYM_ARG(pcre2_match),
-                        DLSYM_ARG(pcre2_get_ovector_pointer));
-}
-
-#else
-
-int dlopen_pcre2(void) {
-        return log_error_errno(SYNTHETIC_ERRNO(EOPNOTSUPP),
-                               "PCRE2 support is not compiled in.");
-}
-#endif
diff --git a/src/journal/pcre2-dlopen.h b/src/journal/pcre2-dlopen.h
deleted file mode 100644
index 1306334144..0000000000
--- a/src/journal/pcre2-dlopen.h
+++ /dev/null
@@ -1,18 +0,0 @@
-/* SPDX-License-Identifier: LGPL-2.1-or-later */
-#pragma once
-
-#if HAVE_PCRE2
-
-#define PCRE2_CODE_UNIT_WIDTH 8
-#include <pcre2.h>
-
-extern pcre2_match_data* (*sym_pcre2_match_data_create)(uint32_t, pcre2_general_context *);
-extern void (*sym_pcre2_match_data_free)(pcre2_match_data *);
-extern void (*sym_pcre2_code_free)(pcre2_code *);
-extern pcre2_code* (*sym_pcre2_compile)(PCRE2_SPTR, PCRE2_SIZE, uint32_t, int *, PCRE2_SIZE *, pcre2_compile_context *);
-extern int (*sym_pcre2_get_error_message)(int, PCRE2_UCHAR *, PCRE2_SIZE);
-extern int (*sym_pcre2_match)(const pcre2_code *, PCRE2_SPTR, PCRE2_SIZE, PCRE2_SIZE, uint32_t, pcre2_match_data *, pcre2_match_context *);
-extern PCRE2_SIZE* (*sym_pcre2_get_ovector_pointer)(pcre2_match_data *);
-#endif
-
-int dlopen_pcre2(void);