From: Joel Brobecker <brobecker@adacore.com>
To: gdb-patches@sourceware.org
Cc: Simon Marchi <simark@simark.ca>, Joel Brobecker <brobecker@adacore.com>
Subject: [pushed/v2 7/9] Add ptype support for DWARF-based fixed-point types
Date: Sun, 15 Nov 2020 03:35:43 -0500 [thread overview]
Message-ID: <1605429345-78384-8-git-send-email-brobecker@adacore.com> (raw)
In-Reply-To: <1605429345-78384-1-git-send-email-brobecker@adacore.com>
Note that the ptype information printed for types described
via pure DWARF debug info is slightly less informative as
the one printed when the information is encoded in the type's
name, via the GNAT encoding. As a result, the output in
the case of DWARF-described fixed point types is slightly
different. In pratice, this is no real loss because the information
not available in DWARF has no bearing on how the type is actually
stored in memory.
gdb/ChangeLog:
* ada-typeprint.c (ada_print_type): Add handing of fixed-point
range types.
* c-typeprint.c (c_type_print_varspec_prefix)
(c_type_print_varspec_suffix, c_type_print_base_1): Add
TYPE_CODE_FIXED_POINT handling.
* p-typeprint.c (pascal_type_print_varspec_prefix)
(pascal_type_print_varspec_suffix): Likewise.
* typeprint.c (print_type_fixed_point): New function.
* typeprint.h (print_type_fixed_point): Add declaration.
gdb/testsuite/ChangeLog:
* gdb.ada/fixed_points.exp: Add ptype tests.
* gdb.dwarf2/dw2-fixed-point.exp: Likewise.
---
gdb/ChangeLog | 12 ++++++++
gdb/ada-typeprint.c | 6 ++++
gdb/c-typeprint.c | 6 ++++
gdb/p-typeprint.c | 2 ++
gdb/testsuite/ChangeLog | 5 ++++
gdb/testsuite/gdb.ada/fixed_points.exp | 36 +++++++++++++++++++++++
gdb/testsuite/gdb.dwarf2/dw2-fixed-point.exp | 44 ++++++++++++++++++++++++++++
gdb/typeprint.c | 12 ++++++++
gdb/typeprint.h | 5 ++++
9 files changed, 128 insertions(+)
diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 0d322da..56e54d3 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,5 +1,17 @@
2020-11-15 Joel Brobecker <brobecker@adacore.com>
+ * ada-typeprint.c (ada_print_type): Add handing of fixed-point
+ range types.
+ * c-typeprint.c (c_type_print_varspec_prefix)
+ (c_type_print_varspec_suffix, c_type_print_base_1): Add
+ TYPE_CODE_FIXED_POINT handling.
+ * p-typeprint.c (pascal_type_print_varspec_prefix)
+ (pascal_type_print_varspec_suffix): Likewise.
+ * typeprint.c (print_type_fixed_point): New function.
+ * typeprint.h (print_type_fixed_point): Add declaration.
+
+2020-11-15 Joel Brobecker <brobecker@adacore.com>
+
* printcmd.c (print_scalar_formatted): Add fixed-point type
handling when options->format is set.
diff --git a/gdb/ada-typeprint.c b/gdb/ada-typeprint.c
index 5388247..8abb65b 100644
--- a/gdb/ada-typeprint.c
+++ b/gdb/ada-typeprint.c
@@ -1046,6 +1046,12 @@ ada_print_type (struct type *type0, const char *varstring,
case TYPE_CODE_RANGE:
if (ada_is_gnat_encoded_fixed_point_type (type))
print_gnat_encoded_fixed_point_type (type, stream);
+ else if (is_fixed_point_type (type))
+ {
+ fprintf_filtered (stream, "<");
+ print_type_fixed_point (type, stream);
+ fprintf_filtered (stream, ">");
+ }
else if (ada_is_modular_type (type))
fprintf_filtered (stream, "mod %s",
int_string (ada_modulus (type), 10, 0, 0, 1));
diff --git a/gdb/c-typeprint.c b/gdb/c-typeprint.c
index e72fdaa..10631ff 100644
--- a/gdb/c-typeprint.c
+++ b/gdb/c-typeprint.c
@@ -465,6 +465,7 @@ c_type_print_varspec_prefix (struct type *type,
case TYPE_CODE_COMPLEX:
case TYPE_CODE_NAMESPACE:
case TYPE_CODE_DECFLOAT:
+ case TYPE_CODE_FIXED_POINT:
/* These types need no prefix. They are listed here so that
gcc -Wall will reveal any types that haven't been handled. */
break;
@@ -844,6 +845,7 @@ c_type_print_varspec_suffix (struct type *type,
case TYPE_CODE_COMPLEX:
case TYPE_CODE_NAMESPACE:
case TYPE_CODE_DECFLOAT:
+ case TYPE_CODE_FIXED_POINT:
/* These types do not need a suffix. They are listed so that
gcc -Wall will report types that may not have been
considered. */
@@ -1683,6 +1685,10 @@ c_type_print_base_1 (struct type *type, struct ui_file *stream,
fprintf_styled (stream, metadata_style.style (), _("<range type>"));
break;
+ case TYPE_CODE_FIXED_POINT:
+ print_type_fixed_point (type, stream);
+ break;
+
case TYPE_CODE_NAMESPACE:
fputs_filtered ("namespace ", stream);
fputs_filtered (type->name (), stream);
diff --git a/gdb/p-typeprint.c b/gdb/p-typeprint.c
index ef0f254..c2c182a 100644
--- a/gdb/p-typeprint.c
+++ b/gdb/p-typeprint.c
@@ -296,6 +296,7 @@ pascal_type_print_varspec_prefix (struct type *type, struct ui_file *stream,
case TYPE_CODE_STRING:
case TYPE_CODE_COMPLEX:
case TYPE_CODE_TYPEDEF:
+ case TYPE_CODE_FIXED_POINT:
/* These types need no prefix. They are listed here so that
gcc -Wall will reveal any types that haven't been handled. */
break;
@@ -429,6 +430,7 @@ pascal_type_print_varspec_suffix (struct type *type, struct ui_file *stream,
case TYPE_CODE_STRING:
case TYPE_CODE_COMPLEX:
case TYPE_CODE_TYPEDEF:
+ case TYPE_CODE_FIXED_POINT:
/* These types do not need a suffix. They are listed so that
gcc -Wall will report types that may not have been considered. */
break;
diff --git a/gdb/testsuite/ChangeLog b/gdb/testsuite/ChangeLog
index 9b9ffe5..2c7b5c5 100644
--- a/gdb/testsuite/ChangeLog
+++ b/gdb/testsuite/ChangeLog
@@ -1,5 +1,10 @@
2020-11-15 Joel Brobecker <brobecker@adacore.com>
+ * gdb.ada/fixed_points.exp: Add ptype tests.
+ * gdb.dwarf2/dw2-fixed-point.exp: Likewise.
+
+2020-11-15 Joel Brobecker <brobecker@adacore.com>
+
* gdb.dwarf2/dw2-fixed-point.exp: Add "print /x" tests.
2020-11-15 Joel Brobecker <brobecker@adacore.com>
diff --git a/gdb/testsuite/gdb.ada/fixed_points.exp b/gdb/testsuite/gdb.ada/fixed_points.exp
index 655ee95..1fe2eb2 100644
--- a/gdb/testsuite/gdb.ada/fixed_points.exp
+++ b/gdb/testsuite/gdb.ada/fixed_points.exp
@@ -55,8 +55,44 @@ gdb_test "ptype Overprecise_Object" \
gdb_test "print fp1_var" \
" = 0.25"
+gdb_test_multiple "ptype fp1_var" "" {
+ -re "type = <1-byte fixed point \\(small = 0\\.0625\\)>\r\n$gdb_prompt $" {
+ pass $gdb_test_name
+ }
+ -re "type = delta 0\\.1 <'small = 0\\.0625>\r\n$gdb_prompt $" {
+ # The (legacy) output we obtain when the compiler described
+ # our fixed point types using the GNAT encodings rather than
+ # standard DWARF. OK as well.
+ pass $gdb_test_name
+ }
+}
+
gdb_test "print fp2_var" \
" = -0.01"
+gdb_test_multiple "ptype fp2_var" "" {
+ -re "type = <8-byte fixed point \\(small = 0\\.01\\)>\r\n$gdb_prompt $" {
+ pass $gdb_test_name
+ }
+ -re "type = delta 0\\.01\r\n$gdb_prompt $" {
+ # The (legacy) output we obtain when the compiler described
+ # our fixed point types using the GNAT encodings rather than
+ # standard DWARF. OK as well.
+ pass $gdb_test_name
+ }
+}
+
gdb_test "print fp3_var" \
" = 0.1"
+
+gdb_test_multiple "ptype fp3_var" "" {
+ -re "type = <1-byte fixed point \\(small = 0\\.0333333\\)>\r\n$gdb_prompt $" {
+ pass $gdb_test_name
+ }
+ -re "type = delta 0\\.1 <'small = 0\\.0333333>\r\n$gdb_prompt $" {
+ # The (legacy) output we obtain when the compiler described
+ # our fixed point types using the GNAT encodings rather than
+ # standard DWARF. OK as well.
+ pass $gdb_test_name
+ }
+}
diff --git a/gdb/testsuite/gdb.dwarf2/dw2-fixed-point.exp b/gdb/testsuite/gdb.dwarf2/dw2-fixed-point.exp
index 27c549c..33a7e74 100644
--- a/gdb/testsuite/gdb.dwarf2/dw2-fixed-point.exp
+++ b/gdb/testsuite/gdb.dwarf2/dw2-fixed-point.exp
@@ -142,3 +142,47 @@ gdb_test "print pck.fp1_range_var" \
gdb_test "print /x pck.fp1_range_var" \
" = 0x1"
+
+# Set the language to LANG and do a ptype test on pck__fp1_var,
+# pck__fp2_var and pck__fp3_var, verifying that the output matches
+# FP1_RE, FP2_RE, FP2_RE (resp.).
+
+proc do_ptype_test {lang fp1_re fp2_re fp3_re fp1_range_re} {
+ with_test_prefix "lang=$lang" {
+ gdb_test_no_output "set language $lang" \
+ "set language to $lang for ptype test"
+
+ gdb_test "ptype pck__fp1_var" $fp1_re
+
+ gdb_test "ptype pck__fp2_var" $fp2_re
+
+ gdb_test "ptype pck__fp3_var" $fp3_re
+
+ if { $lang == "modula-2" || $lang == "pascal" } {
+ setup_xfail "*-*-*" "not supported by language"
+ }
+ gdb_test "ptype pck__fp1_range_var" $fp1_range_re
+ }
+}
+
+do_ptype_test "ada" \
+ " = <1-byte fixed point \\(small = 1/16\\)>" \
+ " = <1-byte fixed point \\(small = 1/100\\)>" \
+ " = <1-byte fixed point \\(small = 1/30\\)>" \
+ " = <1-byte fixed point \\(small = 1/16\\)>"
+
+foreach lang [list "c" "d" "go" "objective-c" "opencl" ] {
+ do_ptype_test $lang \
+ " = 1-byte fixed point \\(small = 1/16\\)" \
+ " = 1-byte fixed point \\(small = 1/100\\)" \
+ " = 1-byte fixed point \\(small = 1/30\\)" \
+ " = <range type>"
+}
+
+foreach lang [list "fortran" "modula-2" "pascal" ] {
+ do_ptype_test $lang \
+ " = pck__fp1_type" \
+ " = pck__fp2_type" \
+ " = pck__fp3_type" \
+ " = <range type>"
+}
diff --git a/gdb/typeprint.c b/gdb/typeprint.c
index acaee44..f947faf 100644
--- a/gdb/typeprint.c
+++ b/gdb/typeprint.c
@@ -662,6 +662,18 @@ print_type_scalar (struct type *type, LONGEST val, struct ui_file *stream)
}
}
+/* See typeprint.h. */
+
+void
+print_type_fixed_point (struct type *type, struct ui_file *stream)
+{
+ gdb::unique_xmalloc_ptr<char> small_img
+ = fixed_point_scaling_factor (type).str ();
+
+ fprintf_filtered (stream, "%s-byte fixed point (small = %s)",
+ pulongest (TYPE_LENGTH (type)), small_img.get ());
+}
+
/* Dump details of a type specified either directly or indirectly.
Uses the same sort of type lookup mechanism as ptype_command()
and whatis_command(). */
diff --git a/gdb/typeprint.h b/gdb/typeprint.h
index 8936b9a..d595cbe 100644
--- a/gdb/typeprint.h
+++ b/gdb/typeprint.h
@@ -151,6 +151,11 @@ class typedef_hash_table
void print_type_scalar (struct type * type, LONGEST, struct ui_file *);
+/* Assuming the TYPE is a fixed point type, print its type description
+ on STREAM. */
+
+void print_type_fixed_point (struct type *type, struct ui_file *stream);
+
void c_type_print_args (struct type *, struct ui_file *, int, enum language,
const struct type_print_options *);
--
2.1.4
next prev parent reply other threads:[~2020-11-15 8:36 UTC|newest]
Thread overview: 140+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-08 6:30 RFA: Add support for DWARF-based fixed point types Joel Brobecker
2020-11-08 6:30 ` [PATCH 1/9] gdb/configure: Add --with-libgmp-prefix option Joel Brobecker
2020-11-08 6:30 ` [PATCH 2/9] gdb: Make GMP a required dependency for building GDB Joel Brobecker
2020-12-15 6:55 ` Sebastian Huber
2020-12-15 8:57 ` Joel Brobecker
2020-11-08 6:30 ` [PATCH 3/9] gmp-utils: New API to simply use of GMP's integer/rational/float objects Joel Brobecker
2020-11-10 20:15 ` Simon Marchi
2020-11-13 8:12 ` Joel Brobecker
2020-11-13 15:04 ` Tom Tromey
2020-11-13 15:06 ` Simon Marchi
2020-11-16 16:18 ` Tom Tromey
2020-11-16 16:34 ` Luis Machado
2020-11-18 3:52 ` Joel Brobecker
2020-11-08 6:30 ` [PATCH 4/9] Move uinteger_pow gdb/valarith.c to gdb/utils.c and make it public Joel Brobecker
2020-11-08 6:30 ` [PATCH 5/9] Add support for printing value of DWARF-based fixed-point type objects Joel Brobecker
2020-11-10 21:06 ` Simon Marchi
2020-11-14 10:48 ` Joel Brobecker
2020-11-14 13:20 ` Simon Marchi
2020-11-14 11:30 ` Joel Brobecker
2020-11-14 16:14 ` Simon Marchi
2020-11-15 5:30 ` Joel Brobecker
2020-11-15 6:33 ` Joel Brobecker
2020-11-16 0:13 ` Simon Marchi
2020-11-08 6:30 ` [PATCH 6/9] fix printing of DWARF fixed-point type objects with format modifier Joel Brobecker
2020-11-10 22:50 ` Simon Marchi
2020-11-08 6:30 ` [PATCH 7/9] Add ptype support for DWARF-based fixed-point types Joel Brobecker
2020-11-10 23:00 ` Simon Marchi
2020-11-15 6:57 ` Joel Brobecker
2020-11-15 7:09 ` Joel Brobecker
2020-11-16 0:16 ` Simon Marchi
2020-11-16 4:03 ` Joel Brobecker
2020-11-08 6:30 ` [PATCH 8/9] Add support for fixed-point type arithmetic Joel Brobecker
2020-11-10 23:18 ` Simon Marchi
2020-11-08 6:30 ` [PATCH 9/9] Add support for fixed-point type comparison operators Joel Brobecker
2020-11-10 23:21 ` RFA: Add support for DWARF-based fixed point types Simon Marchi
2020-11-11 4:53 ` Joel Brobecker
2020-11-15 8:35 ` pushed: " Joel Brobecker
2020-11-15 8:35 ` [pushed/v2 1/9] gdb/configure: Add --with-libgmp-prefix option Joel Brobecker
2020-11-15 15:52 ` Bernd Edlinger
2020-11-16 3:45 ` Joel Brobecker
2020-11-16 14:20 ` Bernd Edlinger
2020-11-17 7:41 ` [PATCH] Enable GDB build with in-tree GMP and MPFR Bernd Edlinger
2020-11-18 3:44 ` Joel Brobecker
2020-11-18 8:14 ` Bernd Edlinger
2020-12-01 19:29 ` Bernd Edlinger
2020-12-01 19:32 ` Simon Marchi
2020-12-01 19:38 ` Bernd Edlinger
2020-12-01 20:29 ` Bernd Edlinger
2020-12-01 20:30 ` Simon Marchi
2020-12-02 3:21 ` Joel Brobecker
2020-12-08 20:39 ` [PING] " Bernd Edlinger
2020-12-14 17:40 ` [PATCH v2] " Bernd Edlinger
2020-12-14 18:47 ` Simon Marchi
2020-12-14 21:35 ` Tom Tromey
2020-12-14 22:17 ` Simon Marchi
2020-12-15 2:33 ` Joel Brobecker
2020-12-15 14:39 ` Simon Marchi
2020-12-15 16:24 ` Bernd Edlinger
2020-12-16 7:33 ` Joel Brobecker
2020-12-16 18:16 ` Bernd Edlinger
2020-12-25 12:05 ` Bernd Edlinger
2020-12-27 22:01 ` Simon Marchi
2020-12-29 8:36 ` Bernd Edlinger
2020-12-29 14:50 ` Simon Marchi
2021-01-10 14:12 ` Bernd Edlinger
2021-01-10 15:32 ` Simon Marchi
2021-01-11 3:22 ` Joel Brobecker
2021-01-16 18:01 ` Bernd Edlinger
2020-12-15 15:33 ` Bernd Edlinger
2020-12-15 15:10 ` Bernd Edlinger
2020-11-15 8:35 ` [pushed/v2 2/9] gdb: Make GMP a required dependency for building GDB Joel Brobecker
2020-11-15 8:35 ` [pushed/v2 3/9] gmp-utils: New API to simply use of GMP's integer/rational/float objects Joel Brobecker
2020-11-15 8:35 ` [pushed/v2 4/9] Move uinteger_pow gdb/valarith.c to gdb/utils.c and make it public Joel Brobecker
2020-11-15 8:35 ` [pushed/v2 5/9] Add support for printing value of DWARF-based fixed-point type objects Joel Brobecker
2020-11-15 8:35 ` [pushed/v2 6/9] fix printing of DWARF fixed-point type objects with format modifier Joel Brobecker
2020-11-15 8:35 ` Joel Brobecker [this message]
2020-11-15 8:35 ` [pushed/v2 8/9] Add support for fixed-point type arithmetic Joel Brobecker
2020-11-15 8:35 ` [pushed/v2 9/9] Add support for fixed-point type comparison operators Joel Brobecker
2020-11-16 23:48 ` pushed: Add support for DWARF-based fixed point types Pedro Alves
2020-11-17 14:25 ` Simon Marchi
2020-11-18 3:47 ` Joel Brobecker
2020-11-22 13:12 ` [RFA] Add TYPE_CODE_FIXED_POINT handling in print_type_scalar Joel Brobecker
2020-11-22 14:35 ` Simon Marchi
2020-11-24 3:04 ` Joel Brobecker
2020-11-22 14:00 ` pushed: Add support for DWARF-based fixed point types Joel Brobecker
2020-11-22 20:11 ` Simon Marchi
2020-11-23 4:27 ` Joel Brobecker
2020-11-23 16:12 ` Simon Marchi
2020-11-24 2:39 ` Joel Brobecker
2020-11-29 15:45 ` RFA: wrap mpz_export into gdb_mpz::safe_export Joel Brobecker
2020-11-29 15:45 ` [RFA 1/2] Fix TARGET_CHAR_BIT/HOST_CHAR_BIT confusion in gmp-utils.c Joel Brobecker
2020-11-30 15:42 ` Simon Marchi
2020-12-05 8:05 ` Joel Brobecker
2020-11-29 15:45 ` [RFA 2/2] gmp-utils: protect gdb_mpz exports against out-of-range values Joel Brobecker
2020-11-30 15:56 ` Simon Marchi
2020-12-01 3:37 ` Joel Brobecker
2020-12-01 4:02 ` Simon Marchi
2020-12-01 7:11 ` Joel Brobecker
2020-12-05 8:10 ` [RFAv2 " Joel Brobecker
2020-12-05 23:26 ` Simon Marchi
2020-12-06 4:58 ` Joel Brobecker
2020-11-30 12:44 ` RFA: wrap mpz_export into gdb_mpz::safe_export Christian Biesinger
2020-11-20 14:08 ` pushed: Add support for DWARF-based fixed point types Pedro Alves
2020-11-20 14:14 ` Joel Brobecker
2020-11-22 11:56 ` RFA/doco: Various changes related to GMP and fixed point type support Joel Brobecker
2020-11-22 11:56 ` [RFA/doco 1/4] gdb/NEWS: Document that building GDB now requires GMP Joel Brobecker
2020-11-22 15:31 ` Eli Zaretskii
2020-11-24 3:11 ` Joel Brobecker
2020-11-22 11:56 ` [RFA/doco 2/4] gdb/NEWS: Document that GDB now supports DWARF-based fixed point types Joel Brobecker
2020-11-22 15:33 ` Eli Zaretskii
2020-11-24 3:12 ` Joel Brobecker
2020-11-22 11:56 ` [RFA/doco 3/4] gdb/README: Document the --with-libgmp-prefix configure option Joel Brobecker
2020-11-22 15:32 ` Eli Zaretskii
2020-11-24 3:11 ` Joel Brobecker
2020-11-22 11:56 ` [RFA/doco 4/4] gdb/README: Fix the URL of the MPFR website (now https) Joel Brobecker
2020-11-22 15:33 ` Eli Zaretskii
2020-11-24 3:11 ` Joel Brobecker
2020-11-15 8:49 ` RFA: Various enhancements to the fixed-point support implementation Joel Brobecker
2020-11-15 8:49 ` [RFA 1/6] change gmp_string_asprintf to return an std::string Joel Brobecker
2020-11-16 0:41 ` Simon Marchi
2020-11-16 3:55 ` Joel Brobecker
2020-11-16 20:10 ` Simon Marchi
2020-11-15 8:49 ` [RFA 2/6] gmp-utils: Convert the read/write methods to using gdb::array_view Joel Brobecker
2020-11-16 0:52 ` Simon Marchi
2020-11-16 23:05 ` Pedro Alves
2020-11-17 14:32 ` Simon Marchi
2020-11-15 8:49 ` [RFA 3/6] gdbtypes.h: Get rid of the TYPE_FIXED_POINT_INFO macro Joel Brobecker
2020-11-15 8:49 ` [RFA 4/6] Make fixed_point_type_base_type a method of struct type Joel Brobecker
2020-11-15 8:49 ` [RFA 5/6] Make function fixed_point_scaling_factor " Joel Brobecker
2020-11-15 8:49 ` [RFA 6/6] valarith.c: Replace INIT_VAL_WITH_FIXED_POINT_VAL macro by lambda Joel Brobecker
2020-11-16 1:01 ` RFA: Various enhancements to the fixed-point support implementation Simon Marchi
2020-11-22 11:14 ` RFA v2: " Joel Brobecker
2020-11-22 11:14 ` [RFA v2 1/6] change and rename gmp_string_asprintf to return an std::string Joel Brobecker
2020-11-22 11:14 ` [RFA v2 2/6] gmp-utils: Convert the read/write methods to using gdb::array_view Joel Brobecker
2020-11-22 11:14 ` [RFA v2 3/6] gdbtypes.h: Get rid of the TYPE_FIXED_POINT_INFO macro Joel Brobecker
2020-11-22 11:14 ` [RFA v2 4/6] Make fixed_point_type_base_type a method of struct type Joel Brobecker
2020-11-22 11:14 ` [RFA v2 5/6] Make function fixed_point_scaling_factor " Joel Brobecker
2020-11-22 11:14 ` [RFA v2 6/6] valarith.c: Replace INIT_VAL_WITH_FIXED_POINT_VAL macro by lambda Joel Brobecker
2020-11-23 16:46 ` RFA v2: Various enhancements to the fixed-point support implementation Simon Marchi
2020-11-24 2:56 ` Joel Brobecker
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