mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-10-31 08:28:13 +00:00
eb4a3f7d78
Add UNWIND_HINT_FUNC on __kretprobe_trampoline() code so that ORC information is generated on the __kretprobe_trampoline() correctly. Also, this uses STACK_FRAME_NON_STANDARD_FP(), CONFIG_FRAME_POINTER- -specific version of STACK_FRAME_NON_STANDARD(). Link: https://lkml.kernel.org/r/163163049242.489837.11970969750993364293.stgit@devnote2 Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com> Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org> Tested-by: Andrii Nakryiko <andrii@kernel.org> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
62 lines
1.3 KiB
C
62 lines
1.3 KiB
C
#ifndef _ASM_X86_UNWIND_HINTS_H
|
|
#define _ASM_X86_UNWIND_HINTS_H
|
|
|
|
#include <linux/objtool.h>
|
|
|
|
#include "orc_types.h"
|
|
|
|
#ifdef __ASSEMBLY__
|
|
|
|
.macro UNWIND_HINT_EMPTY
|
|
UNWIND_HINT sp_reg=ORC_REG_UNDEFINED type=UNWIND_HINT_TYPE_CALL end=1
|
|
.endm
|
|
|
|
.macro UNWIND_HINT_REGS base=%rsp offset=0 indirect=0 extra=1 partial=0
|
|
.if \base == %rsp
|
|
.if \indirect
|
|
.set sp_reg, ORC_REG_SP_INDIRECT
|
|
.else
|
|
.set sp_reg, ORC_REG_SP
|
|
.endif
|
|
.elseif \base == %rbp
|
|
.set sp_reg, ORC_REG_BP
|
|
.elseif \base == %rdi
|
|
.set sp_reg, ORC_REG_DI
|
|
.elseif \base == %rdx
|
|
.set sp_reg, ORC_REG_DX
|
|
.elseif \base == %r10
|
|
.set sp_reg, ORC_REG_R10
|
|
.else
|
|
.error "UNWIND_HINT_REGS: bad base register"
|
|
.endif
|
|
|
|
.set sp_offset, \offset
|
|
|
|
.if \partial
|
|
.set type, UNWIND_HINT_TYPE_REGS_PARTIAL
|
|
.elseif \extra == 0
|
|
.set type, UNWIND_HINT_TYPE_REGS_PARTIAL
|
|
.set sp_offset, \offset + (16*8)
|
|
.else
|
|
.set type, UNWIND_HINT_TYPE_REGS
|
|
.endif
|
|
|
|
UNWIND_HINT sp_reg=sp_reg sp_offset=sp_offset type=type
|
|
.endm
|
|
|
|
.macro UNWIND_HINT_IRET_REGS base=%rsp offset=0
|
|
UNWIND_HINT_REGS base=\base offset=\offset partial=1
|
|
.endm
|
|
|
|
.macro UNWIND_HINT_FUNC
|
|
UNWIND_HINT sp_reg=ORC_REG_SP sp_offset=8 type=UNWIND_HINT_TYPE_FUNC
|
|
.endm
|
|
|
|
#else
|
|
|
|
#define UNWIND_HINT_FUNC \
|
|
UNWIND_HINT(ORC_REG_SP, 8, UNWIND_HINT_TYPE_FUNC, 0)
|
|
|
|
#endif /* __ASSEMBLY__ */
|
|
|
|
#endif /* _ASM_X86_UNWIND_HINTS_H */
|