From b750101eb236130cf056c675997decbac904cc49 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 17:35:18 +0200 Subject: Adding upstream version 252.22. Signed-off-by: Daniel Baumann --- src/shared/dlfcn-util.h | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) create mode 100644 src/shared/dlfcn-util.h (limited to 'src/shared/dlfcn-util.h') diff --git a/src/shared/dlfcn-util.h b/src/shared/dlfcn-util.h new file mode 100644 index 0000000..d786d03 --- /dev/null +++ b/src/shared/dlfcn-util.h @@ -0,0 +1,22 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ +#pragma once + +#include + +#include "macro.h" + +DEFINE_TRIVIAL_CLEANUP_FUNC_FULL(void*, dlclose, NULL); + +int dlsym_many_or_warn_sentinel(void *dl, int log_level, ...) _sentinel_; +int dlopen_many_sym_or_warn_sentinel(void **dlp, const char *filename, int log_level, ...) _sentinel_; + +#define dlsym_many_or_warn(dl, log_level, ...) \ + dlsym_many_or_warn_sentinel(dl, log_level, __VA_ARGS__, NULL) +#define dlopen_many_sym_or_warn(dlp, filename, log_level, ...) \ + dlopen_many_sym_or_warn_sentinel(dlp, filename, log_level, __VA_ARGS__, NULL) + +/* Macro useful for putting together variable/symbol name pairs when calling dlsym_many_or_warn(). Assumes + * that each library symbol to resolve will be placed in a variable with the "sym_" prefix, i.e. a symbol + * "foobar" is loaded into a variable "sym_foobar". */ +#define DLSYM_ARG(arg) \ + &sym_##arg, STRINGIFY(arg) -- cgit v1.2.3