Commit 1222445a authored by Andrii Nakryiko's avatar Andrii Nakryiko Committed by Daniel Borkmann
Browse files

libbpf: Complete mips spec in bpf_tracing.h 



Add registers for PARM6 through PARM8. Add a link to an ABI. We don't
distinguish between O32, N32, and N64, so document that we assume N64
right now.

Signed-off-by: default avatarAndrii Nakryiko <andrii@kernel.org>
Signed-off-by: default avatarDaniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20230120200914.3008030-5-andrii@kernel.org
parent 1dac40ac

tools/lib/bpf/bpf_tracing.h

+8 −0
Original line number Diff line number Diff line
@@ -201,11 +201,19 @@ struct pt_regs___arm64 { 


#elif defined(bpf_target_mips)



/*

 * N64 ABI is assumed right now.

 * https://en.wikipedia.org/wiki/MIPS_architecture#Calling_conventions

 */



#define __PT_PARM1_REG regs[4]

#define __PT_PARM2_REG regs[5]

#define __PT_PARM3_REG regs[6]

#define __PT_PARM4_REG regs[7]

#define __PT_PARM5_REG regs[8]

#define __PT_PARM6_REG regs[9]

#define __PT_PARM7_REG regs[10]

#define __PT_PARM8_REG regs[11]

#define __PT_RET_REG regs[31]

#define __PT_FP_REG regs[30]	/* Works only with CONFIG_FRAME_POINTER */

#define __PT_RC_REG regs[2]