gitea/SDL3_fork
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Record dynamic dependencies in .note.dlopen elf section

Browse Source
This commit is contained in:
Anonymous Maarten
2025-08-27 18:11:39 +02:00
committed by GitHub
parent 152ba829a1
commit 0a6b80717c
26 changed files with 435 additions and 36 deletions
Download Patch File Download Diff File Expand all files Collapse all files

20
CMakeLists.txt
View File

@@ -302,6 +302,7 @@ dep_option(SDL_ARMNEON "Use NEON assembly routines" ON "SDL_ASSEMBLY
dep_option(SDL_LSX "Use LSX assembly routines" ON "SDL_ASSEMBLY;SDL_CPU_LOONGARCH64" OFF)
dep_option(SDL_LASX "Use LASX assembly routines" ON "SDL_ASSEMBLY;SDL_CPU_LOONGARCH64" OFF)
dep_option(SDL_DLOPEN_NOTES "Record dlopen dependencies in .note.dlopen section" TRUE UNIX_SYS OFF)
set_option(SDL_LIBC "Use the system C library" ${SDL_LIBC_DEFAULT})
set_option(SDL_SYSTEM_ICONV "Use iconv() from system-installed libraries" ${SDL_SYSTEM_ICONV_DEFAULT})
set_option(SDL_LIBICONV "Prefer iconv() from libiconv, if available, over libc version" OFF)
@@ -1712,6 +1713,25 @@ elseif(EMSCRIPTEN)
CheckLibUnwind()
elseif(UNIX AND NOT APPLE AND NOT RISCOS AND NOT HAIKU)
if(SDL_DLOPEN_NOTES)
set(CHECK_ELF_DLNOTES_SRC [==[
#ifndef __ELF__
ELF DL notes is only supported on ELF platforms
#endif
__attribute__ ((used,aligned(4),section(".note.dlopen"))) static const struct {
struct { int a; int b; int c; } hdr; char name[4]; __attribute__((aligned(4))) char json[24];
} dlnote = { { 4, 0x407c0c0aU, 16 }, "FDO", "[\\"a\\":{\\"a\\":\\"1\\",\\"b\\":\\"2\\"}]" };
int main(int argc, char *argv[]) {
return argc + dlnote.hdr.a;
}
]==])
check_c_source_compiles("${CHECK_ELF_DLNOTES_SRC}" COMPILER_SUPPORTS_ELFNOTES)
if(COMPILER_SUPPORTS_ELFNOTES)
set(HAVE_DLOPEN_NOTES TRUE)
endif()
endif()
if(SDL_AUDIO)
if(NETBSD)
set(SDL_AUDIO_DRIVER_NETBSD 1)