arch/riscv/include/asm/kgdb.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 #ifndef __ASM_KGDB_H_
   4 #define __ASM_KGDB_H_
   5
   6 #ifdef __KERNEL__
   7
   8 #define GDB_SIZEOF_REG sizeof(unsigned long)
   9
  10 #define DBG_MAX_REG_NUM (36)
  11 #define NUMREGBYTES ((DBG_MAX_REG_NUM) * GDB_SIZEOF_REG)
  12 #define CACHE_FLUSH_IS_SAFE     1
  13 #define BUFMAX                  2048
  14 #ifdef CONFIG_RISCV_ISA_C
  15 #define BREAK_INSTR_SIZE        2
  16 #else
  17 #define BREAK_INSTR_SIZE        4
  18 #endif
  19
  20 #ifndef __ASSEMBLY__
  21
  22 extern unsigned long kgdb_compiled_break;
  23
  24 static inline void arch_kgdb_breakpoint(void)
  25 {
  26         asm(".global kgdb_compiled_break\n"
  27             ".option norvc\n"
  28             "kgdb_compiled_break: ebreak\n"
  29             ".option rvc\n");
  30 }
  31
  32 #endif /* !__ASSEMBLY__ */
  33
  34 #define DBG_REG_ZERO "zero"
  35 #define DBG_REG_RA "ra"
  36 #define DBG_REG_SP "sp"
  37 #define DBG_REG_GP "gp"
  38 #define DBG_REG_TP "tp"
  39 #define DBG_REG_T0 "t0"
  40 #define DBG_REG_T1 "t1"
  41 #define DBG_REG_T2 "t2"
  42 #define DBG_REG_FP "fp"
  43 #define DBG_REG_S1 "s1"
  44 #define DBG_REG_A0 "a0"
  45 #define DBG_REG_A1 "a1"
  46 #define DBG_REG_A2 "a2"
  47 #define DBG_REG_A3 "a3"
  48 #define DBG_REG_A4 "a4"
  49 #define DBG_REG_A5 "a5"
  50 #define DBG_REG_A6 "a6"
  51 #define DBG_REG_A7 "a7"
  52 #define DBG_REG_S2 "s2"
  53 #define DBG_REG_S3 "s3"
  54 #define DBG_REG_S4 "s4"
  55 #define DBG_REG_S5 "s5"
  56 #define DBG_REG_S6 "s6"
  57 #define DBG_REG_S7 "s7"
  58 #define DBG_REG_S8 "s8"
  59 #define DBG_REG_S9 "s9"
  60 #define DBG_REG_S10 "s10"
  61 #define DBG_REG_S11 "s11"
  62 #define DBG_REG_T3 "t3"
  63 #define DBG_REG_T4 "t4"
  64 #define DBG_REG_T5 "t5"
  65 #define DBG_REG_T6 "t6"
  66 #define DBG_REG_EPC "pc"
  67 #define DBG_REG_STATUS "sstatus"
  68 #define DBG_REG_BADADDR "stval"
  69 #define DBG_REG_CAUSE "scause"
  70
  71 #define DBG_REG_ZERO_OFF 0
  72 #define DBG_REG_RA_OFF 1
  73 #define DBG_REG_SP_OFF 2
  74 #define DBG_REG_GP_OFF 3
  75 #define DBG_REG_TP_OFF 4
  76 #define DBG_REG_T0_OFF 5
  77 #define DBG_REG_T1_OFF 6
  78 #define DBG_REG_T2_OFF 7
  79 #define DBG_REG_FP_OFF 8
  80 #define DBG_REG_S1_OFF 9
  81 #define DBG_REG_A0_OFF 10
  82 #define DBG_REG_A1_OFF 11
  83 #define DBG_REG_A2_OFF 12
  84 #define DBG_REG_A3_OFF 13
  85 #define DBG_REG_A4_OFF 14
  86 #define DBG_REG_A5_OFF 15
  87 #define DBG_REG_A6_OFF 16
  88 #define DBG_REG_A7_OFF 17
  89 #define DBG_REG_S2_OFF 18
  90 #define DBG_REG_S3_OFF 19
  91 #define DBG_REG_S4_OFF 20
  92 #define DBG_REG_S5_OFF 21
  93 #define DBG_REG_S6_OFF 22
  94 #define DBG_REG_S7_OFF 23
  95 #define DBG_REG_S8_OFF 24
  96 #define DBG_REG_S9_OFF 25
  97 #define DBG_REG_S10_OFF 26
  98 #define DBG_REG_S11_OFF 27
  99 #define DBG_REG_T3_OFF 28
 100 #define DBG_REG_T4_OFF 29
 101 #define DBG_REG_T5_OFF 30
 102 #define DBG_REG_T6_OFF 31
 103 #define DBG_REG_EPC_OFF 32
 104 #define DBG_REG_STATUS_OFF 33
 105 #define DBG_REG_BADADDR_OFF 34
 106 #define DBG_REG_CAUSE_OFF 35
 107
 108 extern const char riscv_gdb_stub_feature[64];
 109
 110 #define kgdb_arch_gdb_stub_feature riscv_gdb_stub_feature
 111
 112 #endif
 113 #endif