diff options
| author | Felix Willgerodt <felix.willgerodt@intel.com> | 2021-03-09 11:34:55 +0100 |
|---|---|---|
| committer | Felix Willgerodt <felix.willgerodt@intel.com> | 2021-03-09 11:34:55 +0100 |
| commit | 611aa09d994fc5a8a9444075e65f0d6d4ebf4922 (patch) | |
| tree | effc6393a6e4c210d02a40ce547454402215ed99 /gdb/f-lang.c | |
| parent | eef32f59988bb0e4514d5395093c9e6d8d073ebb (diff) | |
| download | binutils-gdb-611aa09d994fc5a8a9444075e65f0d6d4ebf4922.tar.gz | |
gdb/fortran: Add 'LOC' intrinsic support.
LOC(X) returns the address of X as an integer:
https://gcc.gnu.org/onlinedocs/gfortran/LOC.html
Before:
(gdb) p LOC(r)
No symbol "LOC" in current context.
After:
(gdb) p LOC(r)
$1 = 0xffffdf48
gdb/ChangeLog:
2021-03-09 Felix Willgerodt <felix.willgerodt@intel.com>
* f-exp.h (eval_op_f_loc): Declare.
(expr::fortran_loc_operation): New typedef.
* f-exp.y (exp): Handle UNOP_FORTRAN_LOC after parsing an
UNOP_INTRINSIC.
(f77_keywords): Add LOC keyword.
* f-lang.c (eval_op_f_loc): New function.
* std-operator.def (UNOP_FORTRAN_LOC): New operator.
gdb/testsuite/ChangeLog:
2020-03-09 Felix Willgerodt <felix.willgerodt@intel.com>
* gdb.fortran/intrinsics.exp: Add LOC tests.
Diffstat (limited to 'gdb/f-lang.c')
| -rw-r--r-- | gdb/f-lang.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/gdb/f-lang.c b/gdb/f-lang.c index d79c458c5e0..0c49420e1f1 100644 --- a/gdb/f-lang.c +++ b/gdb/f-lang.c @@ -971,6 +971,25 @@ eval_op_f_rank (struct type *expect_type, return value_from_longest (result_type, ndim); } +/* A helper function for UNOP_FORTRAN_LOC. */ + +struct value * +eval_op_f_loc (struct type *expect_type, struct expression *exp, + enum noside noside, enum exp_opcode op, + struct value *arg1) +{ + struct type *result_type; + if (gdbarch_ptr_bit (exp->gdbarch) == 16) + result_type = builtin_f_type (exp->gdbarch)->builtin_integer_s2; + else if (gdbarch_ptr_bit (exp->gdbarch) == 32) + result_type = builtin_f_type (exp->gdbarch)->builtin_integer; + else + result_type = builtin_f_type (exp->gdbarch)->builtin_integer_s8; + + LONGEST result_value = value_address (arg1); + return value_from_longest (result_type, result_value); +} + namespace expr { |