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- --- a/gcc/config/csky/csky.h 2026-05-31 20:55:03.197855806 +0000
- +++ gcc/config/csky/csky.h 2026-05-31 20:55:03.204856192 +0000
- @@ -1007,6 +1007,13 @@
- define DWARF_FRAME_RETURN_COLUMN to DWARF_FRAME_REGNUM. */
- #define DWARF_FRAME_RETURN_COLUMN DWARF_FRAME_REGNUM (CSKY_LR_REGNUM)
-
- +/* Signal frames (config/csky/linux-unwind.h) put the interrupted PC in
- + DWARF column 32, which is not a hard register and thus is left unsized
- + in dwarf_reg_size_table. Declare it as the alternate return column so
- + init_dwarf_reg_size_table sizes it; otherwise _Unwind_GetGR aborts when
- + unwinding through a signal frame (e.g. pthread cancellation). */
- +#define DWARF_ALT_FRAME_RETURN_COLUMN 32
- +
- /* Use r0 and r1 to pass exception handling information. */
- #define EH_RETURN_DATA_REGNO(N) ((N) < 2 ? N : INVALID_REGNUM)
-
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