Hi!
As reported, libgnat-12.so gets PT_GNU_STACK RWE, which means it doesn't
work in some SELinux configurations.
This is caused by the a-nbnbig.o file, which is a ghost unit and since
r12-5670 the FE emits an object file for it, but exits before compile_file
has a chance to finalize it e.g. with targetm.asm_out.file_end ()
that emits the .note.GNU-stack section on various linux targets.
Fixed by not existing but instead returning early to the caller.
Bootstrapped/regtested on x86_64-linux, preapproved in the PR,
committed to trunk.
2022-01-14 Andrew Pinski <apin...@marvell.com>
PR ada/104027
* gnat1drv.adb (Gnat1drv): After Back_End.Gen_Or_Update_Object_File
goto End_Of_Program.
--- gcc/ada/gnat1drv.adb
+++ gcc/ada/gnat1drv.adb
@@ -1429,6 +1429,11 @@ begin
Ecode := E_Success;
Back_End.Gen_Or_Update_Object_File;
+ -- Use a goto instead of calling Exit_Program so that finalization
+ -- occurs normally.
+
+ goto End_Of_Program;
+
-- Otherwise the unit is missing a crucial piece that prevents code
-- generation.
Jakub
