This patch adds tests for the btf_decl_tag attribute, in both DWARF
and BTF.
gcc/testsuite/
* gcc.dg/debug/btf/btf-decltag-func.c: New test.
* gcc.dg/debug/btf/btf-decltag-sou.c: New test.
* gcc.dg/debug/btf/btf-decltag-var.c: New test.
* gcc.dg/debug/dwarf2/annotation-decl-1.c: New test.
* gcc.dg/debug/dwarf2/annotation-decl-2.c: New test.
* gcc.dg/debug/dwarf2/annotation-decl-3.c: New test.
---
.../gcc.dg/debug/btf/btf-decltag-func.c | 21 ++++++++++++
.../gcc.dg/debug/btf/btf-decltag-sou.c | 33 +++++++++++++++++++
.../gcc.dg/debug/btf/btf-decltag-var.c | 19 +++++++++++
.../gcc.dg/debug/dwarf2/annotation-decl-1.c | 9 +++++
.../gcc.dg/debug/dwarf2/annotation-decl-2.c | 18 ++++++++++
.../gcc.dg/debug/dwarf2/annotation-decl-3.c | 17 ++++++++++
6 files changed, 117 insertions(+)
create mode 100644 gcc/testsuite/gcc.dg/debug/btf/btf-decltag-func.c
create mode 100644 gcc/testsuite/gcc.dg/debug/btf/btf-decltag-sou.c
create mode 100644 gcc/testsuite/gcc.dg/debug/btf/btf-decltag-var.c
create mode 100644 gcc/testsuite/gcc.dg/debug/dwarf2/annotation-decl-1.c
create mode 100644 gcc/testsuite/gcc.dg/debug/dwarf2/annotation-decl-2.c
create mode 100644 gcc/testsuite/gcc.dg/debug/dwarf2/annotation-decl-3.c
diff --git a/gcc/testsuite/gcc.dg/debug/btf/btf-decltag-func.c
b/gcc/testsuite/gcc.dg/debug/btf/btf-decltag-func.c
new file mode 100644
index 00000000000..12a5eff9ac7
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/debug/btf/btf-decltag-func.c
@@ -0,0 +1,21 @@
+/* { dg-do compile } */
+/* { dg-options "-O0 -gbtf -dA" } */
+
+#define __tag1 __attribute__((btf_decl_tag("decl-tag-1")))
+#define __tag2 __attribute__((btf_decl_tag("decl-tag-2")))
+#define __tag3 __attribute__((btf_decl_tag("decl-tag-3")))
+
+extern int bar (int __tag1, int __tag2) __tag3;
+
+int __tag1 __tag2 foo (int arg1, int *arg2 __tag2)
+ {
+ return bar (arg1 + 1, *arg2 + 2);
+ }
+
+/* { dg-final { scan-assembler-times "\[\t \]0x11000000\[\t
\]+\[^\n\]*btt_info" 4 } } */
+/* { dg-final { scan-assembler-times "\[\t \]0xffffffff\[\t
\]+\[^\n\]*decltag_compidx" 3 } } */
+/* { dg-final { scan-assembler-times "\[\t \]0x1\[\t
\]+\[^\n\]*decltag_compidx" 1 } } */
+
+/* { dg-final { scan-assembler-times " BTF_KIND_DECL_TAG
'decl-tag-1'\[\\r\\n\]+\[^\\r\\n\]*\[\\r\\n\]+\[^\\r\\n\]*\\(BTF_KIND_FUNC" 1 }
} */
+/* { dg-final { scan-assembler-times " BTF_KIND_DECL_TAG
'decl-tag-2'\[\\r\\n\]+\[^\\r\\n\]*\[\\r\\n\]+\[^\\r\\n\]*\\(BTF_KIND_FUNC" 2 }
} */
+/* { dg-final { scan-assembler-times " BTF_KIND_DECL_TAG
'decl-tag-3'\[\\r\\n\]+\[^\\r\\n\]*\[\\r\\n\]+\[^\\r\\n\]*\\(BTF_KIND_FUNC" 1 }
} */
diff --git a/gcc/testsuite/gcc.dg/debug/btf/btf-decltag-sou.c
b/gcc/testsuite/gcc.dg/debug/btf/btf-decltag-sou.c
new file mode 100644
index 00000000000..13c9f075b1e
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/debug/btf/btf-decltag-sou.c
@@ -0,0 +1,33 @@
+
+/* { dg-do compile ) */
+/* { dg-options "-O0 -gbtf -dA" } */
+
+/* { dg-final { scan-assembler-times "\[\t \]0x11000000\[\t
\]+\[^\n\]*btt_info" 13 } } */
+/* { dg-final { scan-assembler-times "\[\t \]0\[\t \]+\[^\n\]*decltag_compidx"
2 } } */
+/* { dg-final { scan-assembler-times "\[\t \]0x1\[\t
\]+\[^\n\]*decltag_compidx" 1 } } */
+/* { dg-final { scan-assembler-times "\[\t \]0x2\[\t
\]+\[^\n\]*decltag_compidx" 3 } } */
+/* { dg-final { scan-assembler-times "\[\t \]0x3\[\t
\]+\[^\n\]*decltag_compidx" 3 } } */
+/* { dg-final { scan-assembler-times "\[\t \]0x4\[\t
\]+\[^\n\]*decltag_compidx" 1 } } */
+/* { dg-final { scan-assembler-times "\[\t \]0xffffffff\[\t
\]+\[^\n\]*decltag_compidx" 3 } } */
+
+#define __tag1 __attribute__((btf_decl_tag("decl-tag-1")))
+#define __tag2 __attribute__((btf_decl_tag("decl-tag-2")))
+#define __tag3 __attribute__((btf_decl_tag("decl-tag-3")))
+
+struct t {
+ int a;
+ long b __tag3;
+ char c __tag2 __tag3;
+};
+
+struct t my_t __tag1 __tag2;
+
+union u {
+ char one __tag1 __tag2;
+ short two;
+ int three __tag1;
+ long four __tag1 __tag2 __tag3;
+ long long five __tag2;
+};
+
+union u my_u __tag3;
diff --git a/gcc/testsuite/gcc.dg/debug/btf/btf-decltag-var.c
b/gcc/testsuite/gcc.dg/debug/btf/btf-decltag-var.c
new file mode 100644
index 00000000000..563e8838f1a
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/debug/btf/btf-decltag-var.c
@@ -0,0 +1,19 @@
+/* { dg-do compile } */
+/* { dg-options "-O0 -gbtf -dA" } */
+
+unsigned long u __attribute__((btf_decl_tag ("__u")));
+
+const int * c __attribute__((btf_decl_tag ("__c"), btf_decl_tag
("devicemem")));
+
+struct st
+{
+ int a;
+ char c;
+};
+
+struct st my_st __attribute__((btf_decl_tag ("__my_st")));
+
+/* { dg-final { scan-assembler-times " BTF_KIND_DECL_TAG
'__u'\[\\r\\n\]+\[^\\r\\n\]*\[\\r\\n\]+\[^\\r\\n\]*\\(BTF_KIND_VAR 'u'" 1 } } */
+/* { dg-final { scan-assembler-times " BTF_KIND_DECL_TAG
'__c'\[\\r\\n\]+\[^\\r\\n\]*\[\\r\\n\]+\[^\\r\\n\]*\\(BTF_KIND_VAR 'c'" 1 } } */
+/* { dg-final { scan-assembler-times " BTF_KIND_DECL_TAG
'devicemem'\[\\r\\n\]+\[^\\r\\n\]*\[\\r\\n\]+\[^\\r\\n\]*\\(BTF_KIND_VAR 'c'" 1
} } */
+/* { dg-final { scan-assembler-times " BTF_KIND_DECL_TAG
'__my_st'\[\\r\\n\]+\[^\\r\\n\]*\[\\r\\n\]+\[^\\r\\n\]*\\(BTF_KIND_VAR 'my_st'"
1 } } */
diff --git a/gcc/testsuite/gcc.dg/debug/dwarf2/annotation-decl-1.c
b/gcc/testsuite/gcc.dg/debug/dwarf2/annotation-decl-1.c
new file mode 100644
index 00000000000..d5af2188098
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/debug/dwarf2/annotation-decl-1.c
@@ -0,0 +1,9 @@
+/* Test simple generation of decl tag annotations. */
+/* { dg-do compile } */
+/* { dg-options "-O0 -gdwarf -dA" } */
+
+int *p __attribute__((btf_decl_tag ("p_decl")));
+
+/* { dg-final { scan-assembler-times "DIE \\(\[^\n\]*\\)
DW_TAG_GNU_annotation" 1 } } */
+/* { dg-final { scan-assembler-times " DW_AT_name: \"btf_decl_tag\"" 1 } } */
+/* { dg-final { scan-assembler-times " DW_AT_const_value: \"p_decl\"" 1 } } */
diff --git a/gcc/testsuite/gcc.dg/debug/dwarf2/annotation-decl-2.c
b/gcc/testsuite/gcc.dg/debug/dwarf2/annotation-decl-2.c
new file mode 100644
index 00000000000..10f2dbc5def
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/debug/dwarf2/annotation-decl-2.c
@@ -0,0 +1,18 @@
+/* Test generation of decl tag annotation DIEs for structs. */
+/* { dg-do compile } */
+/* { dg-options "-O0 -gdwarf -dA" } */
+
+struct st {
+ int a __attribute__((btf_decl_tag("__st_a")));
+ char b;
+ int *c __attribute__((btf_decl_tag("__st_c_1"), btf_decl_tag("__st_c_2")));
+};
+
+struct st my_st __attribute__((btf_decl_tag ("__my_st")));
+
+/* { dg-final { scan-assembler-times "DIE \\(\[^\n\]*\\)
DW_TAG_GNU_annotation" 4 } } */
+/* { dg-final { scan-assembler-times " DW_AT_name: \"btf_decl_tag\"" 4 } } */
+/* { dg-final { scan-assembler-times " DW_AT_const_value: \"__st_a\"" 1 } } */
+/* { dg-final { scan-assembler-times " DW_AT_const_value: \"__st_c_1\"" 1 } }
*/
+/* { dg-final { scan-assembler-times " DW_AT_const_value: \"__st_c_2\"" 1 } }
*/
+/* { dg-final { scan-assembler-times " DW_AT_const_value: \"__my_st\"" 1 } } */
diff --git a/gcc/testsuite/gcc.dg/debug/dwarf2/annotation-decl-3.c
b/gcc/testsuite/gcc.dg/debug/dwarf2/annotation-decl-3.c
new file mode 100644
index 00000000000..e006548fa25
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/debug/dwarf2/annotation-decl-3.c
@@ -0,0 +1,17 @@
+/* Test generation of decl tag annotation DIEs for functions and func args. */
+/* { dg-do compile } */
+/* { dg-options "-O0 -gdwarf -dA" } */
+
+extern int bar (int, int) __attribute__((btf_decl_tag ("__bar_func")));
+
+int __attribute__((btf_decl_tag ("__foo_func")))
+foo (int arg1, int *arg2 __attribute__((btf_decl_tag ("__foo_arg2"))))
+{
+ return bar (arg1 + 1, *arg2 + 2);
+}
+
+/* { dg-final { scan-assembler-times "DIE \\(\[^\n\]*\\)
DW_TAG_GNU_annotation" 3 } } */
+/* { dg-final { scan-assembler-times " DW_AT_name: \"btf_decl_tag\"" 3 } } */
+/* { dg-final { scan-assembler-times " DW_AT_const_value: \"__foo_func\"" 1 }
} */
+/* { dg-final { scan-assembler-times " DW_AT_const_value: \"__foo_arg2\"" 1 }
} */
+/* { dg-final { scan-assembler-times " DW_AT_const_value: \"__bar_func\"" 1 }
} */
--
2.40.1
