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| author | Gunnar Beutner <gbeutner@serenityos.org> | 2021-04-29 14:54:15 +0200 |
|---|---|---|
| committer | Andreas Kling <kling@serenityos.org> | 2021-04-29 20:26:36 +0200 |
| commit | 55ae52fdf81cdcc7d1bf7b883953e2639701d21b (patch) | |
| tree | a0ec01f87b49f3261b5fe00344d5cc72615231cc /Kernel/init.cpp | |
| parent | b8612590984ee39d519ebf45f80e051b6f0d75bf (diff) | |
| download | serenity-55ae52fdf81cdcc7d1bf7b883953e2639701d21b.zip | |
Kernel: Enable building the kernel with -flto
GCC with -flto is more aggressive when it comes to inlining and
discarding functions which is why we must mark some of the functions
as NEVER_INLINE (because they contain asm labels which would be
duplicated in the object files if the compiler decides to inline
the function elsewhere) and __attribute__((used)) for others so
that GCC doesn't discard them.
Diffstat (limited to 'Kernel/init.cpp')
| -rw-r--r-- | Kernel/init.cpp | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/Kernel/init.cpp b/Kernel/init.cpp index 9e4be4b1ca..1918aa1dc8 100644 --- a/Kernel/init.cpp +++ b/Kernel/init.cpp @@ -71,7 +71,7 @@ extern "C" u8* end_of_safemem_text; extern "C" u8* start_of_safemem_atomic_text; extern "C" u8* end_of_safemem_atomic_text; -extern "C" FlatPtr end_of_kernel_image; +extern "C" u8* end_of_kernel_image; multiboot_module_entry_t multiboot_copy_boot_modules_array[16]; size_t multiboot_copy_boot_modules_count; @@ -85,7 +85,7 @@ static void setup_serial_debug(); // boot.S expects these functions to exactly have the following signatures. // We declare them here to ensure their signatures don't accidentally change. -extern "C" void init_finished(u32 cpu); +extern "C" void init_finished(u32 cpu) __attribute__((used)); extern "C" [[noreturn]] void init_ap(u32 cpu, Processor* processor_info); extern "C" [[noreturn]] void init(); |