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| author | Andrew Burgess <aburgess@broadcom.com> | 2012-09-21 17:17:23 +0000 |
|---|---|---|
| committer | Andrew Burgess <aburgess@broadcom.com> | 2012-09-21 17:17:23 +0000 |
| commit | 2603f7eeca78caeef1f362eccebe7cd4b589ba41 (patch) | |
| tree | 4bd3f1743320af702d138e695e4b6adb424e8d4d /gdb/findvar.c | |
| parent | d09bbf000469737045fd17ef5b12fdd25db0b989 (diff) | |
| download | gdb-2603f7eeca78caeef1f362eccebe7cd4b589ba41.zip gdb-2603f7eeca78caeef1f362eccebe7cd4b589ba41.tar.gz gdb-2603f7eeca78caeef1f362eccebe7cd4b589ba41.tar.bz2 | |
http://sourceware.org/ml/gdb-patches/2012-08/msg00715.html
gdb/ChangeLog
* findvar.c (read_frame_register_value): Mark the result value as
optimized out if any of the input registers have been optimized out.
gdb/testsuite/ChangeLog
* gdb.dwarf2/dw2-op-out-param.S: New file.
* gdb.dwarf2/dw2-op-out-param.exp: New file.
Diffstat (limited to 'gdb/findvar.c')
| -rw-r--r-- | gdb/findvar.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/gdb/findvar.c b/gdb/findvar.c index 66bcebe..ec9dde7 100644 --- a/gdb/findvar.c +++ b/gdb/findvar.c @@ -677,7 +677,10 @@ default_value_from_register (struct type *type, int regnum, /* VALUE must be an lval_register value. If regnum is the value's associated register number, and len the length of the values type, read one or more registers in FRAME, starting with register REGNUM, - until we've read LEN bytes. */ + until we've read LEN bytes. + + If any of the registers we try to read are optimized out, then mark the + complete resulting value as optimized out. */ void read_frame_register_value (struct value *value, struct frame_info *frame) @@ -703,6 +706,12 @@ read_frame_register_value (struct value *value, struct frame_info *frame) struct value *regval = get_frame_register_value (frame, regnum); int reg_len = TYPE_LENGTH (value_type (regval)) - reg_offset; + if (value_optimized_out (regval)) + { + set_value_optimized_out (value, 1); + break; + } + /* If the register length is larger than the number of bytes remaining to copy, then only copy the appropriate bytes. */ if (reg_len > len) |