32   unw_word_t sc_addr, sp, sp_addr = c->dwarf.cfa;  in unw_handle_signal_frame()
38   // c->sigcontext_sp = c->dwarf.cfa;  in unw_handle_signal_frame()
39   // c->sigcontext_pc = c->dwarf.ip;  in unw_handle_signal_frame()
53   if (tdep_big_endian(c->dwarf.as))  in unw_handle_signal_frame()
58   /* Update the dwarf cursor. */  in unw_handle_signal_frame()
59   c->dwarf.loc[UNW_MIPS_R0]  = DWARF_LOC (sc_addr + LINUX_SC_R0_OFF, 0);  in unw_handle_signal_frame()
60   c->dwarf.loc[UNW_MIPS_R1]  = DWARF_LOC (sc_addr + LINUX_SC_R1_OFF, 0);  in unw_handle_signal_frame()
61   c->dwarf.loc[UNW_MIPS_R2]  = DWARF_LOC (sc_addr + LINUX_SC_R2_OFF, 0);  in unw_handle_signal_frame()
62   c->dwarf.loc[UNW_MIPS_R3]  = DWARF_LOC (sc_addr + LINUX_SC_R3_OFF, 0);  in unw_handle_signal_frame()
63   c->dwarf.loc[UNW_MIPS_R4]  = DWARF_LOC (sc_addr + LINUX_SC_R4_OFF, 0);  in unw_handle_signal_frame()
64   c->dwarf.loc[UNW_MIPS_R5]  = DWARF_LOC (sc_addr + LINUX_SC_R5_OFF, 0);  in unw_handle_signal_frame()
65   c->dwarf.loc[UNW_MIPS_R6]  = DWARF_LOC (sc_addr + LINUX_SC_R6_OFF, 0);  in unw_handle_signal_frame()
66   c->dwarf.loc[UNW_MIPS_R7]  = DWARF_LOC (sc_addr + LINUX_SC_R7_OFF, 0);  in unw_handle_signal_frame()
67   c->dwarf.loc[UNW_MIPS_R8]  = DWARF_LOC (sc_addr + LINUX_SC_R8_OFF, 0);  in unw_handle_signal_frame()
68   c->dwarf.loc[UNW_MIPS_R9]  = DWARF_LOC (sc_addr + LINUX_SC_R9_OFF, 0);  in unw_handle_signal_frame()
69   c->dwarf.loc[UNW_MIPS_R10] = DWARF_LOC (sc_addr + LINUX_SC_R10_OFF, 0);  in unw_handle_signal_frame()
70   c->dwarf.loc[UNW_MIPS_R11] = DWARF_LOC (sc_addr + LINUX_SC_R11_OFF, 0);  in unw_handle_signal_frame()
71   c->dwarf.loc[UNW_MIPS_R12] = DWARF_LOC (sc_addr + LINUX_SC_R12_OFF, 0);  in unw_handle_signal_frame()
72   c->dwarf.loc[UNW_MIPS_R13] = DWARF_LOC (sc_addr + LINUX_SC_R13_OFF, 0);  in unw_handle_signal_frame()
73   c->dwarf.loc[UNW_MIPS_R14] = DWARF_LOC (sc_addr + LINUX_SC_R14_OFF, 0);  in unw_handle_signal_frame()
74   c->dwarf.loc[UNW_MIPS_R15] = DWARF_LOC (sc_addr + LINUX_SC_R15_OFF, 0);  in unw_handle_signal_frame()
75   c->dwarf.loc[UNW_MIPS_R16] = DWARF_LOC (sc_addr + LINUX_SC_R16_OFF, 0);  in unw_handle_signal_frame()
76   c->dwarf.loc[UNW_MIPS_R17] = DWARF_LOC (sc_addr + LINUX_SC_R17_OFF, 0);  in unw_handle_signal_frame()
77   c->dwarf.loc[UNW_MIPS_R18] = DWARF_LOC (sc_addr + LINUX_SC_R18_OFF, 0);  in unw_handle_signal_frame()
78   c->dwarf.loc[UNW_MIPS_R19] = DWARF_LOC (sc_addr + LINUX_SC_R19_OFF, 0);  in unw_handle_signal_frame()
79   c->dwarf.loc[UNW_MIPS_R20] = DWARF_LOC (sc_addr + LINUX_SC_R20_OFF, 0);  in unw_handle_signal_frame()
80   c->dwarf.loc[UNW_MIPS_R21] = DWARF_LOC (sc_addr + LINUX_SC_R21_OFF, 0);  in unw_handle_signal_frame()
81   c->dwarf.loc[UNW_MIPS_R22] = DWARF_LOC (sc_addr + LINUX_SC_R22_OFF, 0);  in unw_handle_signal_frame()
82   c->dwarf.loc[UNW_MIPS_R23] = DWARF_LOC (sc_addr + LINUX_SC_R23_OFF, 0);  in unw_handle_signal_frame()
83   c->dwarf.loc[UNW_MIPS_R24] = DWARF_LOC (sc_addr + LINUX_SC_R24_OFF, 0);  in unw_handle_signal_frame()
84   c->dwarf.loc[UNW_MIPS_R25] = DWARF_LOC (sc_addr + LINUX_SC_R25_OFF, 0);  in unw_handle_signal_frame()
85   c->dwarf.loc[UNW_MIPS_R26] = DWARF_LOC (sc_addr + LINUX_SC_R26_OFF, 0);  in unw_handle_signal_frame()
86   c->dwarf.loc[UNW_MIPS_R27] = DWARF_LOC (sc_addr + LINUX_SC_R27_OFF, 0);  in unw_handle_signal_frame()
87   c->dwarf.loc[UNW_MIPS_R28] = DWARF_LOC (sc_addr + LINUX_SC_R28_OFF, 0);  in unw_handle_signal_frame()
88   c->dwarf.loc[UNW_MIPS_R29] = DWARF_LOC (sc_addr + LINUX_SC_R29_OFF, 0);  in unw_handle_signal_frame()
89   c->dwarf.loc[UNW_MIPS_R30] = DWARF_LOC (sc_addr + LINUX_SC_R30_OFF, 0);  in unw_handle_signal_frame()
90   c->dwarf.loc[UNW_MIPS_R31] = DWARF_LOC (sc_addr + LINUX_SC_R31_OFF, 0);  in unw_handle_signal_frame()
91   c->dwarf.loc[UNW_MIPS_PC] = DWARF_LOC (sc_addr + LINUX_SC_PC_OFF, 0);  in unw_handle_signal_frame()
94   dwarf_get (&c->dwarf, c->dwarf.loc[UNW_MIPS_R29], &c->dwarf.cfa);  in unw_handle_signal_frame()
95   //dwarf_get (&c->dwarf, c->dwarf.loc[UNW_MIPS_R31], &c->dwarf.ip);  in unw_handle_signal_frame()
97   if ((ret = dwarf_get(&c->dwarf, DWARF_LOC(sc_addr + LINUX_SC_PC_OFF, 0),  in unw_handle_signal_frame()
98 		       &c->dwarf.ip)) < 0)  in unw_handle_signal_frame()
101   if ((ret = dwarf_get(&c->dwarf, DWARF_LOC(sc_addr + LINUX_SC_R31_OFF, 0),  in unw_handle_signal_frame()
104   if ((ret = dwarf_get(&c->dwarf, DWARF_LOC(sc_addr + LINUX_SC_R30_OFF, 0),  in unw_handle_signal_frame()
109          (unsigned long long)c->dwarf.ip, (unsigned long long)ra,  in unw_handle_signal_frame()
110 	 (unsigned long long)c->dwarf.cfa, (unsigned long long)fp);  in unw_handle_signal_frame()
112   c->dwarf.pi_valid = 0;  in unw_handle_signal_frame()
113   c->dwarf.use_prev_instr = 0;  in unw_handle_signal_frame()
124   unw_word_t old_ip = c->dwarf.ip;  in unw_step()
125   unw_word_t old_cfa = c->dwarf.cfa;  in unw_step()
129     /* Not a signal frame, try DWARF-based unwinding. */  in unw_step()
130     ret = dwarf_step (&c->dwarf);  in unw_step()
135   /* Dwarf unwinding didn't work, stop.  */  in unw_step()
141   if (c->dwarf.ip == old_ip && c->dwarf.cfa == old_cfa)  in unw_step()
144                __FUNCTION__, (long) c->dwarf.ip);  in unw_step()
148   return (c->dwarf.ip == 0) ? 0 : 1;  in unw_step()