On 12/18/18 2:36 PM, Andreas Schwab wrote: >> ENTRY(__startcontext) >> >> + cfi_register (blink, r15) >> + > You should precede that with a dummy .cfi_label (see > sysdeps/riscv/start.S) to force the CFI into the FDE instead of the > CIE. Also, can you use cfi_undefined instead?
Yes that works as well. ENTRY (__startcontext) - cfi_register (blink, r15) + .cfi_label .Ldummy + cfi_undefined (blink) 00035e14 <__startcontext>: 35e14: jl [r13] 35e18: mov r0,r14 35e1c: breq.nt r0,0,8 ;35e24 <__startcontext+0x10> 35e20: bl -168 ;35d78 <setcontext> 35e24: b -38248 ;2c8bc <exit> New ---- 0000058c 00000010 00000590 FDE cie=00000000 pc=00035e14..00035e28 DW_CFA_undefined: r31 DW_CFA_nop Old ---- 00035df4 <__startcontext>: 35df4: jl [r13] 35df8: mov r0,r14 35dfc: breq.nt r0,0,8 ;35e04 <__startcontext+0x10> 35e00: bl -168 ;35d58 <setcontext> 35e04: b -38248 ;2c89c <exit> 0000058c 00000014 00000000 CIE Version: 1 Augmentation: "zR" Code alignment factor: 1 Data alignment factor: -4 Return address column: 31 Augmentation data: 1b DW_CFA_def_cfa: r28 ofs 0 DW_CFA_register: r31 in r15 DW_CFA_nop 000005a4 00000010 0000001c FDE cie=0000058c pc=00035df4..00035e08 DW_CFA_nop DW_CFA_nop DW_CFA_nop _______________________________________________ linux-snps-arc mailing list linux-snps-arc@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-snps-arc
