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[RFC 7/7] Remove builtin tdesc_i386_*_linux
- From: Yao Qi <qiyaoltc at gmail dot com>
- To: gdb-patches at sourceware dot org
- Date: Thu, 11 May 2017 16:55:05 +0100
- Subject: [RFC 7/7] Remove builtin tdesc_i386_*_linux
- Authentication-results: sourceware.org; auth=none
- References: <1494518105-15412-1-git-send-email-yao.qi@linaro.org>
With the previous patch, i386-linux target descriptions are dynamically
generated, so don't need all these i386-linux builtin target descriptions.
This patch removes the code in initialize_tdesc_i386_*_linux to create
these tdesc_i386_*_linux. These initialize_tdesc_i386_*_linux functions
are still kept to call selftests::record_xml to record the builtin
xml file target descriptions are transformed to c files and compiled
into GDB, so that we can verify that target descriptions from these
xml files are tested (see changes in xml_builtin_tdesc_test).
Function tdesc_print_intiailize_tdesc_p is added to control the scope
of this removal. In order to highlight the change, I don't re-indent
the code.
gdb:
2017-05-09 Yao Qi <yao.qi@linaro.org>
* target-descriptions.c (tdesc_print_intiailize_tdesc_p): New
function.
(maint_print_c_tdesc_cmd): Call tdesc_print_intiailize_tdesc_p
and print code differently.
(xml_files): New.
(selftests::record_xml): New function.
(selftests::xml_builtin_tdesc_test): Add test.
* target-descriptions.h (selftests::record_xml): Declare.
* features/i386/i386-avx-avx512-linux.c: Regenerated.
* features/i386/i386-avx-linux.c: Regenerated.
* features/i386/i386-avx-mpx-avx512-pku-linux.c: Regenerated.
* features/i386/i386-avx-mpx-linux.c: Regenerated.
* features/i386/i386-linux.c: Regenerated.
* features/i386/i386-mmx-linux.c: Regenerated.
* features/i386/i386-mpx-linux.c: Regenerated.
---
gdb/features/i386/i386-avx-avx512-linux.c | 18 +-------
gdb/features/i386/i386-avx-linux.c | 17 +-------
gdb/features/i386/i386-avx-mpx-avx512-pku-linux.c | 20 +--------
gdb/features/i386/i386-avx-mpx-linux.c | 18 +-------
gdb/features/i386/i386-linux.c | 16 +-------
gdb/features/i386/i386-mmx-linux.c | 15 +------
gdb/features/i386/i386-mpx-linux.c | 17 +-------
gdb/target-descriptions.c | 50 +++++++++++++++++++++--
gdb/target-descriptions.h | 4 ++
9 files changed, 58 insertions(+), 117 deletions(-)
diff --git a/gdb/features/i386/i386-avx-avx512-linux.c b/gdb/features/i386/i386-avx-avx512-linux.c
index e1aec3c..2f47a40 100644
--- a/gdb/features/i386/i386-avx-avx512-linux.c
+++ b/gdb/features/i386/i386-avx-avx512-linux.c
@@ -220,26 +220,10 @@ create_feature_org_gnu_gdb_i386_avx512 (struct target_desc *result, long regnum)
}
#endif /* _ORG_GNU_GDB_I386_AVX512 */
-struct target_desc *tdesc_i386_avx_avx512_linux;
static void
initialize_tdesc_i386_avx_avx512_linux (void)
{
- struct target_desc *result = allocate_target_description ();
-
- set_tdesc_architecture (result, bfd_scan_arch ("i386"));
-
- set_tdesc_osabi (result, osabi_from_tdesc_string ("GNU/Linux"));
-
- long regnum = 0;
-
- regnum = create_feature_org_gnu_gdb_i386_core_i386 (result, regnum);
- regnum = create_feature_org_gnu_gdb_i386_sse (result, regnum);
- regnum = create_feature_org_gnu_gdb_i386_linux (result, regnum);
- regnum = create_feature_org_gnu_gdb_i386_avx (result, regnum);
- regnum = create_feature_org_gnu_gdb_i386_avx512 (result, regnum);
-
- tdesc_i386_avx_avx512_linux = result;
#if GDB_SELF_TEST
- selftests::record_xml_tdesc ("i386/i386-avx-avx512-linux.xml", tdesc_i386_avx_avx512_linux);
+ selftests::record_xml ("i386/i386-avx-avx512-linux.xml");
#endif /* GDB_SELF_TEST */
}
diff --git a/gdb/features/i386/i386-avx-linux.c b/gdb/features/i386/i386-avx-linux.c
index 5645dbf..2e85e0d 100644
--- a/gdb/features/i386/i386-avx-linux.c
+++ b/gdb/features/i386/i386-avx-linux.c
@@ -186,25 +186,10 @@ create_feature_org_gnu_gdb_i386_avx (struct target_desc *result, long regnum)
}
#endif /* _ORG_GNU_GDB_I386_AVX */
-struct target_desc *tdesc_i386_avx_linux;
static void
initialize_tdesc_i386_avx_linux (void)
{
- struct target_desc *result = allocate_target_description ();
-
- set_tdesc_architecture (result, bfd_scan_arch ("i386"));
-
- set_tdesc_osabi (result, osabi_from_tdesc_string ("GNU/Linux"));
-
- long regnum = 0;
-
- regnum = create_feature_org_gnu_gdb_i386_core_i386 (result, regnum);
- regnum = create_feature_org_gnu_gdb_i386_sse (result, regnum);
- regnum = create_feature_org_gnu_gdb_i386_linux (result, regnum);
- regnum = create_feature_org_gnu_gdb_i386_avx (result, regnum);
-
- tdesc_i386_avx_linux = result;
#if GDB_SELF_TEST
- selftests::record_xml_tdesc ("i386/i386-avx-linux.xml", tdesc_i386_avx_linux);
+ selftests::record_xml ("i386/i386-avx-linux.xml");
#endif /* GDB_SELF_TEST */
}
diff --git a/gdb/features/i386/i386-avx-mpx-avx512-pku-linux.c b/gdb/features/i386/i386-avx-mpx-avx512-pku-linux.c
index c65b515..433f596 100644
--- a/gdb/features/i386/i386-avx-mpx-avx512-pku-linux.c
+++ b/gdb/features/i386/i386-avx-mpx-avx512-pku-linux.c
@@ -287,28 +287,10 @@ create_feature_org_gnu_gdb_i386_pkeys (struct target_desc *result, long regnum)
}
#endif /* _ORG_GNU_GDB_I386_PKEYS */
-struct target_desc *tdesc_i386_avx_mpx_avx512_pku_linux;
static void
initialize_tdesc_i386_avx_mpx_avx512_pku_linux (void)
{
- struct target_desc *result = allocate_target_description ();
-
- set_tdesc_architecture (result, bfd_scan_arch ("i386"));
-
- set_tdesc_osabi (result, osabi_from_tdesc_string ("GNU/Linux"));
-
- long regnum = 0;
-
- regnum = create_feature_org_gnu_gdb_i386_core_i386 (result, regnum);
- regnum = create_feature_org_gnu_gdb_i386_sse (result, regnum);
- regnum = create_feature_org_gnu_gdb_i386_linux (result, regnum);
- regnum = create_feature_org_gnu_gdb_i386_avx (result, regnum);
- regnum = create_feature_org_gnu_gdb_i386_mpx (result, regnum);
- regnum = create_feature_org_gnu_gdb_i386_avx512 (result, regnum);
- regnum = create_feature_org_gnu_gdb_i386_pkeys (result, regnum);
-
- tdesc_i386_avx_mpx_avx512_pku_linux = result;
#if GDB_SELF_TEST
- selftests::record_xml_tdesc ("i386/i386-avx-mpx-avx512-pku-linux.xml", tdesc_i386_avx_mpx_avx512_pku_linux);
+ selftests::record_xml ("i386/i386-avx-mpx-avx512-pku-linux.xml");
#endif /* GDB_SELF_TEST */
}
diff --git a/gdb/features/i386/i386-avx-mpx-linux.c b/gdb/features/i386/i386-avx-mpx-linux.c
index 49d25f2..9ff8f25 100644
--- a/gdb/features/i386/i386-avx-mpx-linux.c
+++ b/gdb/features/i386/i386-avx-mpx-linux.c
@@ -238,26 +238,10 @@ create_feature_org_gnu_gdb_i386_mpx (struct target_desc *result, long regnum)
}
#endif /* _ORG_GNU_GDB_I386_MPX */
-struct target_desc *tdesc_i386_avx_mpx_linux;
static void
initialize_tdesc_i386_avx_mpx_linux (void)
{
- struct target_desc *result = allocate_target_description ();
-
- set_tdesc_architecture (result, bfd_scan_arch ("i386"));
-
- set_tdesc_osabi (result, osabi_from_tdesc_string ("GNU/Linux"));
-
- long regnum = 0;
-
- regnum = create_feature_org_gnu_gdb_i386_core_i386 (result, regnum);
- regnum = create_feature_org_gnu_gdb_i386_sse (result, regnum);
- regnum = create_feature_org_gnu_gdb_i386_linux (result, regnum);
- regnum = create_feature_org_gnu_gdb_i386_avx (result, regnum);
- regnum = create_feature_org_gnu_gdb_i386_mpx (result, regnum);
-
- tdesc_i386_avx_mpx_linux = result;
#if GDB_SELF_TEST
- selftests::record_xml_tdesc ("i386/i386-avx-mpx-linux.xml", tdesc_i386_avx_mpx_linux);
+ selftests::record_xml ("i386/i386-avx-mpx-linux.xml");
#endif /* GDB_SELF_TEST */
}
diff --git a/gdb/features/i386/i386-linux.c b/gdb/features/i386/i386-linux.c
index 51719c5..50ffbda 100644
--- a/gdb/features/i386/i386-linux.c
+++ b/gdb/features/i386/i386-linux.c
@@ -164,24 +164,10 @@ create_feature_org_gnu_gdb_i386_linux (struct target_desc *result, long regnum)
}
#endif /* _ORG_GNU_GDB_I386_LINUX */
-struct target_desc *tdesc_i386_linux;
static void
initialize_tdesc_i386_linux (void)
{
- struct target_desc *result = allocate_target_description ();
-
- set_tdesc_architecture (result, bfd_scan_arch ("i386"));
-
- set_tdesc_osabi (result, osabi_from_tdesc_string ("GNU/Linux"));
-
- long regnum = 0;
-
- regnum = create_feature_org_gnu_gdb_i386_core_i386 (result, regnum);
- regnum = create_feature_org_gnu_gdb_i386_sse (result, regnum);
- regnum = create_feature_org_gnu_gdb_i386_linux (result, regnum);
-
- tdesc_i386_linux = result;
#if GDB_SELF_TEST
- selftests::record_xml_tdesc ("i386/i386-linux.xml", tdesc_i386_linux);
+ selftests::record_xml ("i386/i386-linux.xml");
#endif /* GDB_SELF_TEST */
}
diff --git a/gdb/features/i386/i386-mmx-linux.c b/gdb/features/i386/i386-mmx-linux.c
index 5141692..fe308ba 100644
--- a/gdb/features/i386/i386-mmx-linux.c
+++ b/gdb/features/i386/i386-mmx-linux.c
@@ -88,23 +88,10 @@ create_feature_org_gnu_gdb_i386_linux (struct target_desc *result, long regnum)
}
#endif /* _ORG_GNU_GDB_I386_LINUX */
-struct target_desc *tdesc_i386_mmx_linux;
static void
initialize_tdesc_i386_mmx_linux (void)
{
- struct target_desc *result = allocate_target_description ();
-
- set_tdesc_architecture (result, bfd_scan_arch ("i386"));
-
- set_tdesc_osabi (result, osabi_from_tdesc_string ("GNU/Linux"));
-
- long regnum = 0;
-
- regnum = create_feature_org_gnu_gdb_i386_core_i386 (result, regnum);
- regnum = create_feature_org_gnu_gdb_i386_linux (result, regnum);
-
- tdesc_i386_mmx_linux = result;
#if GDB_SELF_TEST
- selftests::record_xml_tdesc ("i386/i386-mmx-linux.xml", tdesc_i386_mmx_linux);
+ selftests::record_xml ("i386/i386-mmx-linux.xml");
#endif /* GDB_SELF_TEST */
}
diff --git a/gdb/features/i386/i386-mpx-linux.c b/gdb/features/i386/i386-mpx-linux.c
index 9c722cf..15a1ebe 100644
--- a/gdb/features/i386/i386-mpx-linux.c
+++ b/gdb/features/i386/i386-mpx-linux.c
@@ -216,25 +216,10 @@ create_feature_org_gnu_gdb_i386_mpx (struct target_desc *result, long regnum)
}
#endif /* _ORG_GNU_GDB_I386_MPX */
-struct target_desc *tdesc_i386_mpx_linux;
static void
initialize_tdesc_i386_mpx_linux (void)
{
- struct target_desc *result = allocate_target_description ();
-
- set_tdesc_architecture (result, bfd_scan_arch ("i386"));
-
- set_tdesc_osabi (result, osabi_from_tdesc_string ("GNU/Linux"));
-
- long regnum = 0;
-
- regnum = create_feature_org_gnu_gdb_i386_core_i386 (result, regnum);
- regnum = create_feature_org_gnu_gdb_i386_sse (result, regnum);
- regnum = create_feature_org_gnu_gdb_i386_linux (result, regnum);
- regnum = create_feature_org_gnu_gdb_i386_mpx (result, regnum);
-
- tdesc_i386_mpx_linux = result;
#if GDB_SELF_TEST
- selftests::record_xml_tdesc ("i386/i386-mpx-linux.xml", tdesc_i386_mpx_linux);
+ selftests::record_xml ("i386/i386-mpx-linux.xml");
#endif /* GDB_SELF_TEST */
}
diff --git a/gdb/target-descriptions.c b/gdb/target-descriptions.c
index a81ae0d..da44e37 100644
--- a/gdb/target-descriptions.c
+++ b/gdb/target-descriptions.c
@@ -2005,6 +2005,15 @@ tdesc_feature_unique_name (const struct tdesc_feature* feature)
return name;
}
+/* Whether print code initializing tdesc_FUNCTION or not. */
+
+static bool
+tdesc_print_intiailize_tdesc_p (const char *function)
+{
+ return !(strncmp (function, "i386", 4) == 0
+ && strncmp (&function[strlen (function) - 6], "_linux", 6) == 0);
+}
+
static void
maint_print_c_tdesc_cmd (char *args, int from_tty)
{
@@ -2262,10 +2271,15 @@ maint_print_c_tdesc_cmd (char *args, int from_tty)
printf_unfiltered ("\n");
}
- printf_unfiltered ("struct target_desc *tdesc_%s;\n", function);
+ if (tdesc_print_intiailize_tdesc_p (function))
+ printf_unfiltered ("struct target_desc *tdesc_%s;\n", function);
+
printf_unfiltered ("static void\n");
printf_unfiltered ("initialize_tdesc_%s (void)\n", function);
printf_unfiltered ("{\n");
+
+ if (tdesc_print_intiailize_tdesc_p (function))
+ {
printf_unfiltered
(" struct target_desc *result = allocate_target_description ();\n");
@@ -2320,10 +2334,20 @@ maint_print_c_tdesc_cmd (char *args, int from_tty)
printf_unfiltered ("\n");
printf_unfiltered (" tdesc_%s = result;\n", function);
+ }
printf_unfiltered ("#if GDB_SELF_TEST\n");
- printf_unfiltered (" selftests::record_xml_tdesc (\"%s\", tdesc_%s);\n",
- filename_after_features.data (), function);
+
+ if (tdesc_print_intiailize_tdesc_p (function))
+ {
+ printf_unfiltered (" selftests::record_xml_tdesc (\"%s\", tdesc_%s);\n",
+ filename_after_features.data (), function);
+ }
+ else
+ {
+ printf_unfiltered (" selftests::record_xml (\"%s\");\n",
+ filename_after_features.data ());
+ }
printf_unfiltered ("#endif /* GDB_SELF_TEST */\n");
printf_unfiltered ("}\n");
}
@@ -2341,12 +2365,32 @@ record_xml_tdesc (std::string xml_file, const struct target_desc *tdesc)
lists.emplace_back (xml_file, tdesc);
}
+/* XML files, which generate C files and compiled into GDB. */
+
+static std::vector<std::string> xml_files;
+
+void
+record_xml (const char *xml_file)
+{
+ xml_files.emplace_back (xml_file);
+}
+
/* Test these GDB builtin target descriptions are identical to these which
are generated by the corresponding xml files. */
static void
xml_builtin_tdesc_test (void)
{
+ /* Make sure we have a test for every xml target description. */
+ for (auto const &xml : xml_files)
+ {
+ auto r = std::find_if (std::begin (lists), std::end (lists),
+ [&xml](decltype (lists)::const_reference e)
+ -> bool {return e.first == xml;});
+
+ SELF_CHECK (r != std::end (lists));
+ }
+
std::string feature_dir (ldirname (__FILE__));
struct stat st;
diff --git a/gdb/target-descriptions.h b/gdb/target-descriptions.h
index 78416ae..2667bcd 100644
--- a/gdb/target-descriptions.h
+++ b/gdb/target-descriptions.h
@@ -266,6 +266,10 @@ namespace selftests {
void record_xml_tdesc (std::string xml_file,
const struct target_desc *tdesc);
+
+/* Record c file generated by XML_FILE is compiled into GDB. */
+
+void record_xml (const char *xml_file);
}
#endif
--
1.9.1