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authorPedro Alves <palves@redhat.com>2011-03-18 18:42:41 +0000
committerPedro Alves <palves@redhat.com>2011-03-18 18:42:41 +0000
commit8dccd430c9de0e6cf747ae4bb1bf9d944fe3397c (patch)
treef08c75005e0a84b4ea64218341df6caf2bca0799 /gdb/findvar.c
parent0fdb4f184b39af02d76e21cd25af561b464f15a6 (diff)
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* dwarf2loc.c (read_pieced_value): Handle get_frame_register_bytes returning that the register piece is unavailable/optimized out. (write_pieced_value): Handle get_frame_register_bytes returning that the register piece is unavailable/optimized out when doing a read-modify write of a bitfield. * findvar.c (value_from_register): Handle get_frame_register_bytes returning that the register piece is unavailable/optimized out. * frame.c (get_frame_register_bytes): New parameters `optimizedp' and `unavailablep'. Throw error on bad debug info. Use frame_register instead of frame_register_read, to fill in the new arguments. * frame.h (get_frame_register_bytes): New parameters `optimizedp' and `unavailablep'. * valops.c: (value_assign): Adjust, and handle get_frame_register_bytes failing. * spu-tdep.c: Include exceptions.h. (spu_software_single_step): Adjust, and handle get_frame_register_bytes failing. (spu_get_longjmp_target): Ditto. * gdbarch.sh (register_to_value): Change to return int. New parameters `optimizedp' and `unavailablep'. * gdbarch.h, gdbarch.c: Regenerate. * i386-tdep.c (i386_register_to_value): Adjust to new gdbarch_register_to_value interface. * i387-tdep.c (i387_register_to_value): Ditto. * i387-tdep.h (i387_register_to_value): Ditto. * alpha-tdep.c (alpha_register_to_value): Ditto. * ia64-tdep.c (ia64_register_to_value): Ditto. * m68k-tdep.c (m68k_register_to_value): Ditto. * mips-tdep.c (mips_register_to_value): Ditto. * rs6000-tdep.c (rs6000_register_to_value): Ditto.
Diffstat (limited to 'gdb/findvar.c')
-rw-r--r--gdb/findvar.c19
1 files changed, 15 insertions, 4 deletions
diff --git a/gdb/findvar.c b/gdb/findvar.c
index 809a99e..2b361efe 100644
--- a/gdb/findvar.c
+++ b/gdb/findvar.c
@@ -628,6 +628,7 @@ value_from_register (struct type *type, int regnum, struct frame_info *frame)
struct gdbarch *gdbarch = get_frame_arch (frame);
struct type *type1 = check_typedef (type);
struct value *v;
+ int optim, unavail, ok;
if (gdbarch_convert_register_p (gdbarch, regnum, type1))
{
@@ -642,8 +643,9 @@ value_from_register (struct type *type, int regnum, struct frame_info *frame)
VALUE_LVAL (v) = lval_register;
VALUE_FRAME_ID (v) = get_frame_id (frame);
VALUE_REGNUM (v) = regnum;
- gdbarch_register_to_value (gdbarch,
- frame, regnum, type1, value_contents_raw (v));
+ ok = gdbarch_register_to_value (gdbarch, frame, regnum, type1,
+ value_contents_raw (v), &optim,
+ &unavail);
}
else
{
@@ -653,10 +655,19 @@ value_from_register (struct type *type, int regnum, struct frame_info *frame)
v = gdbarch_value_from_register (gdbarch, type, regnum, frame);
/* Get the data. */
- if (!get_frame_register_bytes (frame, regnum, value_offset (v), len,
- value_contents_raw (v)))
+ ok = get_frame_register_bytes (frame, regnum, value_offset (v), len,
+ value_contents_raw (v),
+ &optim, &unavail);
+ }
+
+ if (!ok)
+ {
+ if (optim)
set_value_optimized_out (v, 1);
+ if (unavail)
+ mark_value_bytes_unavailable (v, 0, TYPE_LENGTH (type));
}
+
return v;
}