[PATCH 2/2] gdb: LoongArch: fix failed testcases in gdb.base/align-c.exp

[Tiezhu Yang <yangtiezhu@loongson.cn>]

When execute the following command on LoongArch:

  make check-gdb TESTS="gdb.base/align-c.exp"

there exists some failed testcases:

  ...
  FAIL: gdb.base/align-c.exp: print _Alignof(struct align_pair_long_double_x_float)
  FAIL: gdb.base/align-c.exp: print _Alignof(struct align_pair_long_double_x_double)
  FAIL: gdb.base/align-c.exp: print _Alignof(struct align_pair_long_double_x_long_double)
  ...

According to LoongArch ELF ABI specification [1], set the target data types
of floating-point to fix the above failed testcases.

[1] https://loongson.github.io/LoongArch-Documentation/LoongArch-ELF-ABI-EN.html

Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
---
 gdb/loongarch-tdep.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/gdb/loongarch-tdep.c b/gdb/loongarch-tdep.c
index ffcff03..88a8382 100644
--- a/gdb/loongarch-tdep.c
+++ b/gdb/loongarch-tdep.c
@@ -268,6 +268,10 @@ loongarch_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
   set_gdbarch_int_bit (gdbarch, 32);
   set_gdbarch_long_bit (gdbarch, info.bfd_arch_info->bits_per_address);
   set_gdbarch_long_long_bit (gdbarch, 64);
+  set_gdbarch_float_bit (gdbarch, 32);
+  set_gdbarch_double_bit (gdbarch, 64);
+  set_gdbarch_long_double_bit (gdbarch, 128);
+  set_gdbarch_long_double_format (gdbarch, floatformats_ieee_quad);
   set_gdbarch_ptr_bit (gdbarch, info.bfd_arch_info->bits_per_address);
   set_gdbarch_char_signed (gdbarch, 0);
 
-- 
2.1.0