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libbpf: Define arm syscall regs spec in bpf_tracing.h

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Define explicit table of registers used for syscall argument passing.

Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20230120200914.3008030-17-andrii@kernel.org
This commit is contained in:
Andrii Nakryiko 2023-01-20 12:09:05 -08:00 • committed by Daniel Borkmann
parent e82b96a3a9
commit 3a95c42d65
1 changed files with 8 additions and 0 deletions
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8
tools/lib/bpf/bpf_tracing.h
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@ -199,6 +199,14 @@ struct pt_regs___s390 {
#define __PT_PARM2_REG uregs[1]
#define __PT_PARM3_REG uregs[2]
#define __PT_PARM4_REG uregs[3]
#define __PT_PARM1_SYSCALL_REG __PT_PARM1_REG
#define __PT_PARM2_SYSCALL_REG __PT_PARM2_REG
#define __PT_PARM3_SYSCALL_REG __PT_PARM3_REG
#define __PT_PARM4_SYSCALL_REG __PT_PARM4_REG
#define __PT_PARM6_SYSCALL_REG uregs[5]
#define __PT_PARM7_SYSCALL_REG uregs[6]
#define __PT_RET_REG uregs[14]
#define __PT_FP_REG uregs[11] /* Works only with CONFIG_FRAME_POINTER */
#define __PT_RC_REG uregs[0]