Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   1) /* SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   2) #ifndef __BPF_TRACING_H__
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   3) #define __BPF_TRACING_H__
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   4) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   5) /* Scan the ARCH passed in from ARCH env variable (see Makefile) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   6) #if defined(__TARGET_ARCH_x86)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   7) 	#define bpf_target_x86
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   8) 	#define bpf_target_defined
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   9) #elif defined(__TARGET_ARCH_s390)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  10) 	#define bpf_target_s390
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  11) 	#define bpf_target_defined
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  12) #elif defined(__TARGET_ARCH_arm)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  13) 	#define bpf_target_arm
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  14) 	#define bpf_target_defined
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  15) #elif defined(__TARGET_ARCH_arm64)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  16) 	#define bpf_target_arm64
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  17) 	#define bpf_target_defined
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  18) #elif defined(__TARGET_ARCH_mips)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  19) 	#define bpf_target_mips
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  20) 	#define bpf_target_defined
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  21) #elif defined(__TARGET_ARCH_powerpc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  22) 	#define bpf_target_powerpc
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  23) 	#define bpf_target_defined
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  24) #elif defined(__TARGET_ARCH_sparc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  25) 	#define bpf_target_sparc
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  26) 	#define bpf_target_defined
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  27) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  28) 	#undef bpf_target_defined
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  29) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  30) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  31) /* Fall back to what the compiler says */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  32) #ifndef bpf_target_defined
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  33) #if defined(__x86_64__)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  34) 	#define bpf_target_x86
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  35) #elif defined(__s390__)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  36) 	#define bpf_target_s390
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  37) #elif defined(__arm__)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  38) 	#define bpf_target_arm
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  39) #elif defined(__aarch64__)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  40) 	#define bpf_target_arm64
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  41) #elif defined(__mips__)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  42) 	#define bpf_target_mips
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  43) #elif defined(__powerpc__)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  44) 	#define bpf_target_powerpc
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  45) #elif defined(__sparc__)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  46) 	#define bpf_target_sparc
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  47) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  48) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  49) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  50) #if defined(bpf_target_x86)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  51) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  52) #if defined(__KERNEL__) || defined(__VMLINUX_H__)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  53) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  54) #define PT_REGS_PARM1(x) ((x)->di)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  55) #define PT_REGS_PARM2(x) ((x)->si)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  56) #define PT_REGS_PARM3(x) ((x)->dx)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  57) #define PT_REGS_PARM4(x) ((x)->cx)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  58) #define PT_REGS_PARM5(x) ((x)->r8)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  59) #define PT_REGS_RET(x) ((x)->sp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  60) #define PT_REGS_FP(x) ((x)->bp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  61) #define PT_REGS_RC(x) ((x)->ax)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  62) #define PT_REGS_SP(x) ((x)->sp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  63) #define PT_REGS_IP(x) ((x)->ip)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  64) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  65) #define PT_REGS_PARM1_CORE(x) BPF_CORE_READ((x), di)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  66) #define PT_REGS_PARM2_CORE(x) BPF_CORE_READ((x), si)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  67) #define PT_REGS_PARM3_CORE(x) BPF_CORE_READ((x), dx)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  68) #define PT_REGS_PARM4_CORE(x) BPF_CORE_READ((x), cx)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  69) #define PT_REGS_PARM5_CORE(x) BPF_CORE_READ((x), r8)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  70) #define PT_REGS_RET_CORE(x) BPF_CORE_READ((x), sp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  71) #define PT_REGS_FP_CORE(x) BPF_CORE_READ((x), bp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  72) #define PT_REGS_RC_CORE(x) BPF_CORE_READ((x), ax)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  73) #define PT_REGS_SP_CORE(x) BPF_CORE_READ((x), sp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  74) #define PT_REGS_IP_CORE(x) BPF_CORE_READ((x), ip)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  75) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  76) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  77) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  78) #ifdef __i386__
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  79) /* i386 kernel is built with -mregparm=3 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  80) #define PT_REGS_PARM1(x) ((x)->eax)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  81) #define PT_REGS_PARM2(x) ((x)->edx)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  82) #define PT_REGS_PARM3(x) ((x)->ecx)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  83) #define PT_REGS_PARM4(x) 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  84) #define PT_REGS_PARM5(x) 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  85) #define PT_REGS_RET(x) ((x)->esp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  86) #define PT_REGS_FP(x) ((x)->ebp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  87) #define PT_REGS_RC(x) ((x)->eax)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  88) #define PT_REGS_SP(x) ((x)->esp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  89) #define PT_REGS_IP(x) ((x)->eip)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  90) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  91) #define PT_REGS_PARM1_CORE(x) BPF_CORE_READ((x), eax)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  92) #define PT_REGS_PARM2_CORE(x) BPF_CORE_READ((x), edx)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  93) #define PT_REGS_PARM3_CORE(x) BPF_CORE_READ((x), ecx)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  94) #define PT_REGS_PARM4_CORE(x) 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  95) #define PT_REGS_PARM5_CORE(x) 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  96) #define PT_REGS_RET_CORE(x) BPF_CORE_READ((x), esp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  97) #define PT_REGS_FP_CORE(x) BPF_CORE_READ((x), ebp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  98) #define PT_REGS_RC_CORE(x) BPF_CORE_READ((x), eax)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  99) #define PT_REGS_SP_CORE(x) BPF_CORE_READ((x), esp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) #define PT_REGS_IP_CORE(x) BPF_CORE_READ((x), eip)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) #define PT_REGS_PARM1(x) ((x)->rdi)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) #define PT_REGS_PARM2(x) ((x)->rsi)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) #define PT_REGS_PARM3(x) ((x)->rdx)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) #define PT_REGS_PARM4(x) ((x)->rcx)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) #define PT_REGS_PARM5(x) ((x)->r8)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) #define PT_REGS_RET(x) ((x)->rsp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) #define PT_REGS_FP(x) ((x)->rbp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) #define PT_REGS_RC(x) ((x)->rax)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) #define PT_REGS_SP(x) ((x)->rsp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) #define PT_REGS_IP(x) ((x)->rip)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) #define PT_REGS_PARM1_CORE(x) BPF_CORE_READ((x), rdi)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) #define PT_REGS_PARM2_CORE(x) BPF_CORE_READ((x), rsi)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) #define PT_REGS_PARM3_CORE(x) BPF_CORE_READ((x), rdx)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) #define PT_REGS_PARM4_CORE(x) BPF_CORE_READ((x), rcx)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) #define PT_REGS_PARM5_CORE(x) BPF_CORE_READ((x), r8)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) #define PT_REGS_RET_CORE(x) BPF_CORE_READ((x), rsp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) #define PT_REGS_FP_CORE(x) BPF_CORE_READ((x), rbp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) #define PT_REGS_RC_CORE(x) BPF_CORE_READ((x), rax)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) #define PT_REGS_SP_CORE(x) BPF_CORE_READ((x), rsp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) #define PT_REGS_IP_CORE(x) BPF_CORE_READ((x), rip)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) #elif defined(bpf_target_s390)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) /* s390 provides user_pt_regs instead of struct pt_regs to userspace */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) struct pt_regs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) #define PT_REGS_S390 const volatile user_pt_regs
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) #define PT_REGS_PARM1(x) (((PT_REGS_S390 *)(x))->gprs[2])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) #define PT_REGS_PARM2(x) (((PT_REGS_S390 *)(x))->gprs[3])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) #define PT_REGS_PARM3(x) (((PT_REGS_S390 *)(x))->gprs[4])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) #define PT_REGS_PARM4(x) (((PT_REGS_S390 *)(x))->gprs[5])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) #define PT_REGS_PARM5(x) (((PT_REGS_S390 *)(x))->gprs[6])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) #define PT_REGS_RET(x) (((PT_REGS_S390 *)(x))->gprs[14])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) /* Works only with CONFIG_FRAME_POINTER */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) #define PT_REGS_FP(x) (((PT_REGS_S390 *)(x))->gprs[11])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) #define PT_REGS_RC(x) (((PT_REGS_S390 *)(x))->gprs[2])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) #define PT_REGS_SP(x) (((PT_REGS_S390 *)(x))->gprs[15])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) #define PT_REGS_IP(x) (((PT_REGS_S390 *)(x))->psw.addr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) #define PT_REGS_PARM1_CORE(x) BPF_CORE_READ((PT_REGS_S390 *)(x), gprs[2])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) #define PT_REGS_PARM2_CORE(x) BPF_CORE_READ((PT_REGS_S390 *)(x), gprs[3])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) #define PT_REGS_PARM3_CORE(x) BPF_CORE_READ((PT_REGS_S390 *)(x), gprs[4])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) #define PT_REGS_PARM4_CORE(x) BPF_CORE_READ((PT_REGS_S390 *)(x), gprs[5])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) #define PT_REGS_PARM5_CORE(x) BPF_CORE_READ((PT_REGS_S390 *)(x), gprs[6])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) #define PT_REGS_RET_CORE(x) BPF_CORE_READ((PT_REGS_S390 *)(x), gprs[14])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) #define PT_REGS_FP_CORE(x) BPF_CORE_READ((PT_REGS_S390 *)(x), gprs[11])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) #define PT_REGS_RC_CORE(x) BPF_CORE_READ((PT_REGS_S390 *)(x), gprs[2])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) #define PT_REGS_SP_CORE(x) BPF_CORE_READ((PT_REGS_S390 *)(x), gprs[15])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) #define PT_REGS_IP_CORE(x) BPF_CORE_READ((PT_REGS_S390 *)(x), psw.addr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) #elif defined(bpf_target_arm)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) #define PT_REGS_PARM1(x) ((x)->uregs[0])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) #define PT_REGS_PARM2(x) ((x)->uregs[1])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) #define PT_REGS_PARM3(x) ((x)->uregs[2])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) #define PT_REGS_PARM4(x) ((x)->uregs[3])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) #define PT_REGS_PARM5(x) ((x)->uregs[4])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) #define PT_REGS_RET(x) ((x)->uregs[14])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) #define PT_REGS_FP(x) ((x)->uregs[11]) /* Works only with CONFIG_FRAME_POINTER */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) #define PT_REGS_RC(x) ((x)->uregs[0])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) #define PT_REGS_SP(x) ((x)->uregs[13])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) #define PT_REGS_IP(x) ((x)->uregs[12])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) #define PT_REGS_PARM1_CORE(x) BPF_CORE_READ((x), uregs[0])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) #define PT_REGS_PARM2_CORE(x) BPF_CORE_READ((x), uregs[1])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) #define PT_REGS_PARM3_CORE(x) BPF_CORE_READ((x), uregs[2])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) #define PT_REGS_PARM4_CORE(x) BPF_CORE_READ((x), uregs[3])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) #define PT_REGS_PARM5_CORE(x) BPF_CORE_READ((x), uregs[4])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) #define PT_REGS_RET_CORE(x) BPF_CORE_READ((x), uregs[14])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) #define PT_REGS_FP_CORE(x) BPF_CORE_READ((x), uregs[11])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) #define PT_REGS_RC_CORE(x) BPF_CORE_READ((x), uregs[0])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) #define PT_REGS_SP_CORE(x) BPF_CORE_READ((x), uregs[13])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) #define PT_REGS_IP_CORE(x) BPF_CORE_READ((x), uregs[12])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) #elif defined(bpf_target_arm64)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) /* arm64 provides struct user_pt_regs instead of struct pt_regs to userspace */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) struct pt_regs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) #define PT_REGS_ARM64 const volatile struct user_pt_regs
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) #define PT_REGS_PARM1(x) (((PT_REGS_ARM64 *)(x))->regs[0])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) #define PT_REGS_PARM2(x) (((PT_REGS_ARM64 *)(x))->regs[1])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) #define PT_REGS_PARM3(x) (((PT_REGS_ARM64 *)(x))->regs[2])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) #define PT_REGS_PARM4(x) (((PT_REGS_ARM64 *)(x))->regs[3])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) #define PT_REGS_PARM5(x) (((PT_REGS_ARM64 *)(x))->regs[4])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) #define PT_REGS_RET(x) (((PT_REGS_ARM64 *)(x))->regs[30])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) /* Works only with CONFIG_FRAME_POINTER */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) #define PT_REGS_FP(x) (((PT_REGS_ARM64 *)(x))->regs[29])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) #define PT_REGS_RC(x) (((PT_REGS_ARM64 *)(x))->regs[0])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) #define PT_REGS_SP(x) (((PT_REGS_ARM64 *)(x))->sp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) #define PT_REGS_IP(x) (((PT_REGS_ARM64 *)(x))->pc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) #define PT_REGS_PARM1_CORE(x) BPF_CORE_READ((PT_REGS_ARM64 *)(x), regs[0])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) #define PT_REGS_PARM2_CORE(x) BPF_CORE_READ((PT_REGS_ARM64 *)(x), regs[1])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) #define PT_REGS_PARM3_CORE(x) BPF_CORE_READ((PT_REGS_ARM64 *)(x), regs[2])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) #define PT_REGS_PARM4_CORE(x) BPF_CORE_READ((PT_REGS_ARM64 *)(x), regs[3])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) #define PT_REGS_PARM5_CORE(x) BPF_CORE_READ((PT_REGS_ARM64 *)(x), regs[4])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) #define PT_REGS_RET_CORE(x) BPF_CORE_READ((PT_REGS_ARM64 *)(x), regs[30])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) #define PT_REGS_FP_CORE(x) BPF_CORE_READ((PT_REGS_ARM64 *)(x), regs[29])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) #define PT_REGS_RC_CORE(x) BPF_CORE_READ((PT_REGS_ARM64 *)(x), regs[0])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) #define PT_REGS_SP_CORE(x) BPF_CORE_READ((PT_REGS_ARM64 *)(x), sp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) #define PT_REGS_IP_CORE(x) BPF_CORE_READ((PT_REGS_ARM64 *)(x), pc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) #elif defined(bpf_target_mips)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) #define PT_REGS_PARM1(x) ((x)->regs[4])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) #define PT_REGS_PARM2(x) ((x)->regs[5])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) #define PT_REGS_PARM3(x) ((x)->regs[6])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) #define PT_REGS_PARM4(x) ((x)->regs[7])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) #define PT_REGS_PARM5(x) ((x)->regs[8])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) #define PT_REGS_RET(x) ((x)->regs[31])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) #define PT_REGS_FP(x) ((x)->regs[30]) /* Works only with CONFIG_FRAME_POINTER */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) #define PT_REGS_RC(x) ((x)->regs[2])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) #define PT_REGS_SP(x) ((x)->regs[29])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) #define PT_REGS_IP(x) ((x)->cp0_epc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) #define PT_REGS_PARM1_CORE(x) BPF_CORE_READ((x), regs[4])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) #define PT_REGS_PARM2_CORE(x) BPF_CORE_READ((x), regs[5])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) #define PT_REGS_PARM3_CORE(x) BPF_CORE_READ((x), regs[6])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) #define PT_REGS_PARM4_CORE(x) BPF_CORE_READ((x), regs[7])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) #define PT_REGS_PARM5_CORE(x) BPF_CORE_READ((x), regs[8])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) #define PT_REGS_RET_CORE(x) BPF_CORE_READ((x), regs[31])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) #define PT_REGS_FP_CORE(x) BPF_CORE_READ((x), regs[30])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) #define PT_REGS_RC_CORE(x) BPF_CORE_READ((x), regs[2])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) #define PT_REGS_SP_CORE(x) BPF_CORE_READ((x), regs[29])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) #define PT_REGS_IP_CORE(x) BPF_CORE_READ((x), cp0_epc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) #elif defined(bpf_target_powerpc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) #define PT_REGS_PARM1(x) ((x)->gpr[3])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) #define PT_REGS_PARM2(x) ((x)->gpr[4])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) #define PT_REGS_PARM3(x) ((x)->gpr[5])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) #define PT_REGS_PARM4(x) ((x)->gpr[6])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) #define PT_REGS_PARM5(x) ((x)->gpr[7])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) #define PT_REGS_RC(x) ((x)->gpr[3])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) #define PT_REGS_SP(x) ((x)->sp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) #define PT_REGS_IP(x) ((x)->nip)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) #define PT_REGS_PARM1_CORE(x) BPF_CORE_READ((x), gpr[3])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) #define PT_REGS_PARM2_CORE(x) BPF_CORE_READ((x), gpr[4])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) #define PT_REGS_PARM3_CORE(x) BPF_CORE_READ((x), gpr[5])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) #define PT_REGS_PARM4_CORE(x) BPF_CORE_READ((x), gpr[6])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) #define PT_REGS_PARM5_CORE(x) BPF_CORE_READ((x), gpr[7])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) #define PT_REGS_RC_CORE(x) BPF_CORE_READ((x), gpr[3])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) #define PT_REGS_SP_CORE(x) BPF_CORE_READ((x), sp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) #define PT_REGS_IP_CORE(x) BPF_CORE_READ((x), nip)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) #elif defined(bpf_target_sparc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) #define PT_REGS_PARM1(x) ((x)->u_regs[UREG_I0])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) #define PT_REGS_PARM2(x) ((x)->u_regs[UREG_I1])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) #define PT_REGS_PARM3(x) ((x)->u_regs[UREG_I2])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) #define PT_REGS_PARM4(x) ((x)->u_regs[UREG_I3])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) #define PT_REGS_PARM5(x) ((x)->u_regs[UREG_I4])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) #define PT_REGS_RET(x) ((x)->u_regs[UREG_I7])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) #define PT_REGS_RC(x) ((x)->u_regs[UREG_I0])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) #define PT_REGS_SP(x) ((x)->u_regs[UREG_FP])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) #define PT_REGS_PARM1_CORE(x) BPF_CORE_READ((x), u_regs[UREG_I0])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) #define PT_REGS_PARM2_CORE(x) BPF_CORE_READ((x), u_regs[UREG_I1])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) #define PT_REGS_PARM3_CORE(x) BPF_CORE_READ((x), u_regs[UREG_I2])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) #define PT_REGS_PARM4_CORE(x) BPF_CORE_READ((x), u_regs[UREG_I3])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) #define PT_REGS_PARM5_CORE(x) BPF_CORE_READ((x), u_regs[UREG_I4])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) #define PT_REGS_RET_CORE(x) BPF_CORE_READ((x), u_regs[UREG_I7])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) #define PT_REGS_RC_CORE(x) BPF_CORE_READ((x), u_regs[UREG_I0])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) #define PT_REGS_SP_CORE(x) BPF_CORE_READ((x), u_regs[UREG_FP])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) /* Should this also be a bpf_target check for the sparc case? */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) #if defined(__arch64__)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) #define PT_REGS_IP(x) ((x)->tpc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) #define PT_REGS_IP_CORE(x) BPF_CORE_READ((x), tpc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) #define PT_REGS_IP(x) ((x)->pc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) #define PT_REGS_IP_CORE(x) BPF_CORE_READ((x), pc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) #if defined(bpf_target_powerpc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) #define BPF_KPROBE_READ_RET_IP(ip, ctx)		({ (ip) = (ctx)->link; })
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) #define BPF_KRETPROBE_READ_RET_IP		BPF_KPROBE_READ_RET_IP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) #elif defined(bpf_target_sparc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) #define BPF_KPROBE_READ_RET_IP(ip, ctx)		({ (ip) = PT_REGS_RET(ctx); })
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) #define BPF_KRETPROBE_READ_RET_IP		BPF_KPROBE_READ_RET_IP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) #define BPF_KPROBE_READ_RET_IP(ip, ctx)					    \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) 	({ bpf_probe_read_kernel(&(ip), sizeof(ip), (void *)PT_REGS_RET(ctx)); })
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) #define BPF_KRETPROBE_READ_RET_IP(ip, ctx)				    \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) 	({ bpf_probe_read_kernel(&(ip), sizeof(ip),			    \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) 			  (void *)(PT_REGS_FP(ctx) + sizeof(ip))); })
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) #define ___bpf_concat(a, b) a ## b
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) #define ___bpf_apply(fn, n) ___bpf_concat(fn, n)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) #define ___bpf_nth(_, _1, _2, _3, _4, _5, _6, _7, _8, _9, _a, _b, _c, N, ...) N
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) #define ___bpf_narg(...) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) 	___bpf_nth(_, ##__VA_ARGS__, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) #define ___bpf_empty(...) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) 	___bpf_nth(_, ##__VA_ARGS__, N, N, N, N, N, N, N, N, N, N, 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) #define ___bpf_ctx_cast0() ctx
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) #define ___bpf_ctx_cast1(x) ___bpf_ctx_cast0(), (void *)ctx[0]
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) #define ___bpf_ctx_cast2(x, args...) ___bpf_ctx_cast1(args), (void *)ctx[1]
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) #define ___bpf_ctx_cast3(x, args...) ___bpf_ctx_cast2(args), (void *)ctx[2]
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) #define ___bpf_ctx_cast4(x, args...) ___bpf_ctx_cast3(args), (void *)ctx[3]
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) #define ___bpf_ctx_cast5(x, args...) ___bpf_ctx_cast4(args), (void *)ctx[4]
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) #define ___bpf_ctx_cast6(x, args...) ___bpf_ctx_cast5(args), (void *)ctx[5]
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) #define ___bpf_ctx_cast7(x, args...) ___bpf_ctx_cast6(args), (void *)ctx[6]
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) #define ___bpf_ctx_cast8(x, args...) ___bpf_ctx_cast7(args), (void *)ctx[7]
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) #define ___bpf_ctx_cast9(x, args...) ___bpf_ctx_cast8(args), (void *)ctx[8]
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) #define ___bpf_ctx_cast10(x, args...) ___bpf_ctx_cast9(args), (void *)ctx[9]
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) #define ___bpf_ctx_cast11(x, args...) ___bpf_ctx_cast10(args), (void *)ctx[10]
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) #define ___bpf_ctx_cast12(x, args...) ___bpf_ctx_cast11(args), (void *)ctx[11]
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) #define ___bpf_ctx_cast(args...) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) 	___bpf_apply(___bpf_ctx_cast, ___bpf_narg(args))(args)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323)  * BPF_PROG is a convenience wrapper for generic tp_btf/fentry/fexit and
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324)  * similar kinds of BPF programs, that accept input arguments as a single
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325)  * pointer to untyped u64 array, where each u64 can actually be a typed
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326)  * pointer or integer of different size. Instead of requring user to write
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327)  * manual casts and work with array elements by index, BPF_PROG macro
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328)  * allows user to declare a list of named and typed input arguments in the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329)  * same syntax as for normal C function. All the casting is hidden and
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330)  * performed transparently, while user code can just assume working with
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331)  * function arguments of specified type and name.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333)  * Original raw context argument is preserved as well as 'ctx' argument.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334)  * This is useful when using BPF helpers that expect original context
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335)  * as one of the parameters (e.g., for bpf_perf_event_output()).
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) #define BPF_PROG(name, args...)						    \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) name(unsigned long long *ctx);						    \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) static __attribute__((always_inline)) typeof(name(0))			    \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) ____##name(unsigned long long *ctx, ##args);				    \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) typeof(name(0)) name(unsigned long long *ctx)				    \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) {									    \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) 	_Pragma("GCC diagnostic push")					    \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) 	_Pragma("GCC diagnostic ignored \"-Wint-conversion\"")		    \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) 	return ____##name(___bpf_ctx_cast(args));			    \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) 	_Pragma("GCC diagnostic pop")					    \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) }									    \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) static __attribute__((always_inline)) typeof(name(0))			    \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) ____##name(unsigned long long *ctx, ##args)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) struct pt_regs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) #define ___bpf_kprobe_args0() ctx
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) #define ___bpf_kprobe_args1(x) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) 	___bpf_kprobe_args0(), (void *)PT_REGS_PARM1(ctx)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) #define ___bpf_kprobe_args2(x, args...) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) 	___bpf_kprobe_args1(args), (void *)PT_REGS_PARM2(ctx)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) #define ___bpf_kprobe_args3(x, args...) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) 	___bpf_kprobe_args2(args), (void *)PT_REGS_PARM3(ctx)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) #define ___bpf_kprobe_args4(x, args...) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) 	___bpf_kprobe_args3(args), (void *)PT_REGS_PARM4(ctx)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) #define ___bpf_kprobe_args5(x, args...) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) 	___bpf_kprobe_args4(args), (void *)PT_REGS_PARM5(ctx)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) #define ___bpf_kprobe_args(args...) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) 	___bpf_apply(___bpf_kprobe_args, ___bpf_narg(args))(args)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368)  * BPF_KPROBE serves the same purpose for kprobes as BPF_PROG for
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369)  * tp_btf/fentry/fexit BPF programs. It hides the underlying platform-specific
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370)  * low-level way of getting kprobe input arguments from struct pt_regs, and
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371)  * provides a familiar typed and named function arguments syntax and
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372)  * semantics of accessing kprobe input paremeters.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374)  * Original struct pt_regs* context is preserved as 'ctx' argument. This might
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375)  * be necessary when using BPF helpers like bpf_perf_event_output().
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) #define BPF_KPROBE(name, args...)					    \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) name(struct pt_regs *ctx);						    \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) static __attribute__((always_inline)) typeof(name(0))			    \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) ____##name(struct pt_regs *ctx, ##args);				    \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) typeof(name(0)) name(struct pt_regs *ctx)				    \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) {									    \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) 	_Pragma("GCC diagnostic push")					    \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) 	_Pragma("GCC diagnostic ignored \"-Wint-conversion\"")		    \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) 	return ____##name(___bpf_kprobe_args(args));			    \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) 	_Pragma("GCC diagnostic pop")					    \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) }									    \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) static __attribute__((always_inline)) typeof(name(0))			    \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) ____##name(struct pt_regs *ctx, ##args)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) #define ___bpf_kretprobe_args0() ctx
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) #define ___bpf_kretprobe_args1(x) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) 	___bpf_kretprobe_args0(), (void *)PT_REGS_RC(ctx)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) #define ___bpf_kretprobe_args(args...) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) 	___bpf_apply(___bpf_kretprobe_args, ___bpf_narg(args))(args)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398)  * BPF_KRETPROBE is similar to BPF_KPROBE, except, it only provides optional
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399)  * return value (in addition to `struct pt_regs *ctx`), but no input
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400)  * arguments, because they will be clobbered by the time probed function
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401)  * returns.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) #define BPF_KRETPROBE(name, args...)					    \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) name(struct pt_regs *ctx);						    \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) static __attribute__((always_inline)) typeof(name(0))			    \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) ____##name(struct pt_regs *ctx, ##args);				    \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) typeof(name(0)) name(struct pt_regs *ctx)				    \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) {									    \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) 	_Pragma("GCC diagnostic push")					    \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) 	_Pragma("GCC diagnostic ignored \"-Wint-conversion\"")		    \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) 	return ____##name(___bpf_kretprobe_args(args));			    \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) 	_Pragma("GCC diagnostic pop")					    \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) }									    \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) static __always_inline typeof(name(0)) ____##name(struct pt_regs *ctx, ##args)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) #define ___bpf_fill0(arr, p, x) do {} while (0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) #define ___bpf_fill1(arr, p, x) arr[p] = x
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) #define ___bpf_fill2(arr, p, x, args...) arr[p] = x; ___bpf_fill1(arr, p + 1, args)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) #define ___bpf_fill3(arr, p, x, args...) arr[p] = x; ___bpf_fill2(arr, p + 1, args)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) #define ___bpf_fill4(arr, p, x, args...) arr[p] = x; ___bpf_fill3(arr, p + 1, args)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) #define ___bpf_fill5(arr, p, x, args...) arr[p] = x; ___bpf_fill4(arr, p + 1, args)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) #define ___bpf_fill6(arr, p, x, args...) arr[p] = x; ___bpf_fill5(arr, p + 1, args)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) #define ___bpf_fill7(arr, p, x, args...) arr[p] = x; ___bpf_fill6(arr, p + 1, args)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) #define ___bpf_fill8(arr, p, x, args...) arr[p] = x; ___bpf_fill7(arr, p + 1, args)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) #define ___bpf_fill9(arr, p, x, args...) arr[p] = x; ___bpf_fill8(arr, p + 1, args)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) #define ___bpf_fill10(arr, p, x, args...) arr[p] = x; ___bpf_fill9(arr, p + 1, args)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) #define ___bpf_fill11(arr, p, x, args...) arr[p] = x; ___bpf_fill10(arr, p + 1, args)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) #define ___bpf_fill12(arr, p, x, args...) arr[p] = x; ___bpf_fill11(arr, p + 1, args)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) #define ___bpf_fill(arr, args...) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) 	___bpf_apply(___bpf_fill, ___bpf_narg(args))(arr, 0, args)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433)  * BPF_SEQ_PRINTF to wrap bpf_seq_printf to-be-printed values
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434)  * in a structure.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) #define BPF_SEQ_PRINTF(seq, fmt, args...)			\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) ({								\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) 	static const char ___fmt[] = fmt;			\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) 	unsigned long long ___param[___bpf_narg(args)];		\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) 								\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) 	_Pragma("GCC diagnostic push")				\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) 	_Pragma("GCC diagnostic ignored \"-Wint-conversion\"")	\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) 	___bpf_fill(___param, args);				\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444) 	_Pragma("GCC diagnostic pop")				\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) 								\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) 	bpf_seq_printf(seq, ___fmt, sizeof(___fmt),		\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) 		       ___param, sizeof(___param));		\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) })
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450) #endif