Peter Zijlstra 2d4d8761e3 objtool/x86: Fix SRSO mess ... commit 4ae68b26c3 upstream. Objtool --rethunk does two things: - it collects all (tail) call's of __x86_return_thunk and places them into .return_sites. These are typically compiler generated, but RET also emits this same. - it fudges the validation of the __x86_return_thunk symbol; because this symbol is inside another instruction, it can't actually find the instruction pointed to by the symbol offset and gets upset. Because these two things pertained to the same symbol, there was no pressing need to separate these two separate things. However, alas, along comes SRSO and more crazy things to deal with appeared. The SRSO patch itself added the following symbol names to identify as rethunk: 'srso_untrain_ret', 'srso_safe_ret' and '__ret' Where '__ret' is the old retbleed return thunk, 'srso_safe_ret' is a new similarly embedded return thunk, and 'srso_untrain_ret' is completely unrelated to anything the above does (and was only included because of that INT3 vs UD2 issue fixed previous). Clear things up by adding a second category for the embedded instruction thing. Fixes: fb3bd914b3 ("x86/srso: Add a Speculative RAS Overflow mitigation") Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de> Link: https://lore.kernel.org/r/20230814121148.704502245@infradead.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2023-08-23 17:32:39 +02:00
..
arch.h	objtool/x86: Fix SRSO mess	2023-08-23 17:32:39 +02:00
builtin.h	objtool: Make struct check_options static	2023-02-01 09:15:23 -08:00
cfi.h	objtool: Fix ORC 'signal' propagation	2023-02-23 09:21:50 +01:00
check.h	x86,objtool: Separate unret validation from unwind hints	2023-03-23 23:18:58 +01:00
elf.h	objtool/x86: Fix SRSO mess	2023-08-23 17:32:39 +02:00
endianness.h	objtool: Use target file endianness instead of a compiled constant	2022-11-18 19:00:15 +11:00
objtool.h	objtool: Remove instruction::list	2023-02-23 09:21:44 +01:00
special.h	objtool: Optimize layout of struct special_alt	2023-02-01 09:15:24 -08:00
warn.h	objtool: Add WARN_INSN()	2023-04-14 16:08:28 +02:00