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Commit b0c47807 authored by David S. Miller's avatar David S. Miller
Browse files

bpf: Add sparc support to tools and samples. 



Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
Acked-by: default avatarDaniel Borkmann <daniel@iogearbox.net>
parent 7a12b503

samples/bpf/bpf_helpers.h

+19 −0
Original line number Diff line number Diff line
@@ -146,11 +146,30 @@ static int (*bpf_skb_change_head)(void *, int len, int flags) = 
#define PT_REGS_SP(x) ((x)->sp)

#define PT_REGS_IP(x) ((x)->nip)



#elif defined(__sparc__)



#define PT_REGS_PARM1(x) ((x)->u_regs[UREG_I0])

#define PT_REGS_PARM2(x) ((x)->u_regs[UREG_I1])

#define PT_REGS_PARM3(x) ((x)->u_regs[UREG_I2])

#define PT_REGS_PARM4(x) ((x)->u_regs[UREG_I3])

#define PT_REGS_PARM5(x) ((x)->u_regs[UREG_I4])

#define PT_REGS_RET(x) ((x)->u_regs[UREG_I7])

#define PT_REGS_RC(x) ((x)->u_regs[UREG_I0])

#define PT_REGS_SP(x) ((x)->u_regs[UREG_FP])

#if defined(__arch64__)

#define PT_REGS_IP(x) ((x)->tpc)

#else

#define PT_REGS_IP(x) ((x)->pc)

#endif



#endif



#ifdef __powerpc__

#define BPF_KPROBE_READ_RET_IP(ip, ctx)		({ (ip) = (ctx)->link; })

#define BPF_KRETPROBE_READ_RET_IP		BPF_KPROBE_READ_RET_IP

#elif defined(__sparc__)

#define BPF_KPROBE_READ_RET_IP(ip, ctx)		({ (ip) = PT_REGS_RET(ctx); })

#define BPF_KRETPROBE_READ_RET_IP		BPF_KPROBE_READ_RET_IP

#else

#define BPF_KPROBE_READ_RET_IP(ip, ctx)		({				\

		bpf_probe_read(&(ip), sizeof(ip), (void *)PT_REGS_RET(ctx)); })

tools/build/feature/test-bpf.c

+3 −0
Original line number Diff line number Diff line
@@ -9,6 +9,9 @@ 
#  define __NR_bpf 321

# elif defined(__aarch64__)

#  define __NR_bpf 280

# elif defined(__sparc__)

#  define __NR_bpf 349

# else

#  error __NR_bpf not defined. libbpf does not support your arch.

# endif

#endif

tools/lib/bpf/bpf.c

+2 −0
Original line number Diff line number Diff line
@@ -37,6 +37,8 @@ 
#  define __NR_bpf 321

# elif defined(__aarch64__)

#  define __NR_bpf 280

# elif defined(__sparc__)

#  define __NR_bpf 349

# else

#  error __NR_bpf not defined. libbpf does not support your arch.

# endif