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-rw-r--r--gdb/sh-tdep.c11
1 files changed, 10 insertions, 1 deletions
diff --git a/gdb/sh-tdep.c b/gdb/sh-tdep.c
index e65aeb4b403..3983632b6bc 100644
--- a/gdb/sh-tdep.c
+++ b/gdb/sh-tdep.c
@@ -2554,7 +2554,16 @@ sh_frame_cache (struct frame_info *this_frame, void **this_cache)
if (cache->pc != 0)
{
ULONGEST fpscr;
- fpscr = get_frame_register_unsigned (this_frame, FPSCR_REGNUM);
+
+ /* Check for the existence of the FPSCR register. If it exists,
+ fetch its value for use in prologue analysis. Passing a zero
+ value is the best choice for architecture variants upon which
+ there's no FPSCR register. */
+ if (gdbarch_register_reggroup_p (gdbarch, FPSCR_REGNUM, all_reggroup))
+ fpscr = get_frame_register_unsigned (this_frame, FPSCR_REGNUM);
+ else
+ fpscr = 0;
+
sh_analyze_prologue (gdbarch, cache->pc, current_pc, cache, fpscr);
}