[llvm] Add test for dwarf verification JSON output (PR #124936)
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Wed Jan 29 12:34:03 PST 2025
https://github.com/youngdfb updated https://github.com/llvm/llvm-project/pull/124936
>From 5d326487c7a2371e3e1ceca2072106e9c03ec26f Mon Sep 17 00:00:00 2001
From: David Young <davidayoung at meta.com>
Date: Wed, 29 Jan 2025 06:32:33 -0800
Subject: [PATCH 1/2] Add test for dwarf verification JSON output
Summary:
6244dfef5cd45f1395c66abbe061c6a7eb002676 LLVM commit added the ability
for llvm-dwarfdump to specify --verify-json and get a JSON aggregation of t
he DWARF errors. This diff improves the testing by ensuring we validate th
e expected JSON shape.
A follow up diff will modify the JSON and this ensures we can verify.
he DWARF errors. This diff improves the testing by ensuring we validate th
e expected JSON shape.
A follow up diff will modify the JSON and this ensures we can verify.
Test Plan:
ninja check-llvm-tools-llvm-dwarfdump
---
...g-names-verify--completeness-json-output.s | 172 ++++++++++++++++++
.../X86/debug-names-verify-completeness.s | 1 -
2 files changed, 172 insertions(+), 1 deletion(-)
create mode 100644 llvm/test/tools/llvm-dwarfdump/X86/debug-names-verify--completeness-json-output.s
diff --git a/llvm/test/tools/llvm-dwarfdump/X86/debug-names-verify--completeness-json-output.s b/llvm/test/tools/llvm-dwarfdump/X86/debug-names-verify--completeness-json-output.s
new file mode 100644
index 000000000000000..c4b7ffe1d2d8e75
--- /dev/null
+++ b/llvm/test/tools/llvm-dwarfdump/X86/debug-names-verify--completeness-json-output.s
@@ -0,0 +1,172 @@
+# RUN: llvm-mc -triple x86_64-pc-linux %s -filetype=obj -o - | not llvm-dwarfdump -verify --verify-json=%t.json -
+# RUN: FileCheck %s --input-file %t.json
+
+# CHECK: {"error-categories":{"Name Index DIE entry missing name":{"count":10}},"error-count":10}
+# CHECK-NOT: error: Name Index @ 0x0: Entry for DIE @ {{.*}} (DW_TAG_variable) with name var_block_addr missing.
+
+ .section .debug_loc,"", at progbits
+.Ldebug_loc0:
+ .quad 0
+ .quad 1
+ .short .Lloc0_end-.Lloc0_start # Loc expr size
+.Lloc0_start:
+ .byte 3 # DW_OP_addr
+ .quad 0x47
+.Lloc0_end:
+ .quad 0
+ .quad 0
+
+ .section .debug_abbrev,"", at progbits
+ .byte 1 # Abbreviation Code
+ .byte 17 # DW_TAG_compile_unit
+ .byte 1 # DW_CHILDREN_yes
+ .byte 37 # DW_AT_producer
+ .byte 8 # DW_FORM_string
+ .byte 17 # DW_AT_low_pc
+ .byte 1 # DW_FORM_addr
+ .byte 18 # DW_AT_high_pc
+ .byte 6 # DW_FORM_data4
+ .byte 0 # EOM(1)
+ .byte 0 # EOM(2)
+
+ .byte 2 # Abbreviation Code
+ .byte 52 # DW_TAG_variable
+ .byte 0 # DW_CHILDREN_no
+ .byte 3 # DW_AT_name
+ .byte 8 # DW_FORM_string
+ .byte 2 # DW_AT_location
+ .byte 24 # DW_FORM_exprloc
+ .byte 0 # EOM(1)
+ .byte 0 # EOM(2)
+
+ .byte 3 # Abbreviation Code
+ .byte 46 # DW_TAG_subprogram
+ .byte 1 # DW_CHILDREN_yes
+ .byte 3 # DW_AT_name
+ .byte 8 # DW_FORM_string
+ .byte 110 # DW_AT_linkage_name
+ .byte 8 # DW_FORM_string
+ .byte 82 # DW_AT_entry_pc
+ .byte 1 # DW_FORM_addr
+ .byte 0 # EOM(1)
+ .byte 0 # EOM(2)
+
+ .byte 4 # Abbreviation Code
+ .byte 57 # DW_TAG_namespace
+ .byte 1 # DW_CHILDREN_yes
+ .byte 3 # DW_AT_name
+ .byte 8 # DW_FORM_string
+ .byte 0 # EOM(1)
+ .byte 0 # EOM(2)
+
+ .byte 5 # Abbreviation Code
+ .byte 52 # DW_TAG_variable
+ .byte 0 # DW_CHILDREN_no
+ .byte 3 # DW_AT_name
+ .byte 8 # DW_FORM_string
+ .byte 2 # DW_AT_location
+ .byte 23 # DW_FORM_sec_offset
+ .byte 0 # EOM(1)
+ .byte 0 # EOM(2)
+
+ .byte 6 # Abbreviation Code
+ .byte 57 # DW_TAG_namespace
+ .byte 1 # DW_CHILDREN_yes
+ .byte 0 # EOM(1)
+ .byte 0 # EOM(2)
+
+ .byte 7 # Abbreviation Code
+ .byte 29 # DW_TAG_inlined_subroutine
+ .byte 0 # DW_CHILDREN_no
+ .byte 3 # DW_AT_name
+ .byte 8 # DW_FORM_string
+ .byte 17 # DW_AT_low_pc
+ .byte 1 # DW_FORM_addr
+ .byte 18 # DW_AT_high_pc
+ .byte 1 # DW_FORM_addr
+ .byte 0 # EOM(1)
+ .byte 0 # EOM(2)
+
+ .byte 8 # Abbreviation Code
+ .byte 10 # DW_TAG_label
+ .byte 0 # DW_CHILDREN_no
+ .byte 3 # DW_AT_name
+ .byte 8 # DW_FORM_string
+ .byte 82 # DW_AT_entry_pc
+ .byte 1 # DW_FORM_addr
+ .byte 0 # EOM(1)
+ .byte 0 # EOM(2)
+
+ .byte 0 # EOM(3)
+ .section .debug_info,"", at progbits
+
+.Lcu_begin0:
+ .long .Lcu_end0-.Lcu_start0 # Length of Unit
+.Lcu_start0:
+ .short 4 # DWARF version number
+ .long .debug_abbrev # Offset Into Abbrev. Section
+ .byte 8 # Address Size (in bytes)
+ .byte 1 # Abbrev [1] DW_TAG_compile_unit
+ .asciz "hand-written DWARF" # DW_AT_producer
+ .quad 0x0 # DW_AT_low_pc
+ .long 0x100 # DW_AT_high_pc
+
+ .byte 4 # Abbrev [4] DW_TAG_namespace
+ .asciz "namesp" # DW_AT_name
+ .byte 2 # Abbrev [2] DW_TAG_variable
+ .asciz "var_block_addr" # DW_AT_name
+ .byte 9 # DW_AT_location
+ .byte 3 # DW_OP_addr
+ .quad 0x47
+ .byte 0 # End Of Children Mark
+
+ .byte 6 # Abbrev [6] DW_TAG_namespace
+ .byte 5 # Abbrev [5] DW_TAG_variable
+ .asciz "var_loc_addr" # DW_AT_name
+ .long .Ldebug_loc0 # DW_AT_location
+ .byte 0 # End Of Children Mark
+
+ .byte 2 # Abbrev [2] DW_TAG_variable
+ .asciz "var_loc_tls" # DW_AT_name
+ .byte 1 # DW_AT_location
+ .byte 0x9b # DW_OP_form_tls_address
+
+ .byte 2 # Abbrev [2] DW_TAG_variable
+ .asciz "var_loc_gnu_tls" # DW_AT_name
+ .byte 1 # DW_AT_location
+ .byte 0xe0 # DW_OP_GNU_push_tls_address
+
+ .byte 3 # Abbrev [3] DW_TAG_subprogram
+ .asciz "fun_name" # DW_AT_name
+ .asciz "_Z8fun_name" # DW_AT_linkage_name
+ .quad 0x47 # DW_AT_entry_pc
+ .byte 7 # Abbrev [7] DW_TAG_inlined_subroutine
+ .asciz "fun_inline" # DW_AT_name
+ .quad 0x48 # DW_AT_low_pc
+ .quad 0x49 # DW_AT_high_pc
+ .byte 8 # Abbrev [8] DW_TAG_label
+ .asciz "label" # DW_AT_name
+ .quad 0x4a # DW_AT_entry_pc
+ .byte 0 # End Of Children Mark
+
+ .byte 0 # End Of Children Mark
+.Lcu_end0:
+
+ .section .debug_names,"", at progbits
+ .long .Lnames_end0-.Lnames_start0 # Header: contribution length
+.Lnames_start0:
+ .short 5 # Header: version
+ .short 0 # Header: padding
+ .long 1 # Header: compilation unit count
+ .long 0 # Header: local type unit count
+ .long 0 # Header: foreign type unit count
+ .long 0 # Header: bucket count
+ .long 0 # Header: name count
+ .long .Lnames_abbrev_end0-.Lnames_abbrev_start0 # Header: abbreviation table size
+ .long 0 # Header: augmentation length
+ .long .Lcu_begin0 # Compilation unit 0
+.Lnames_abbrev_start0:
+ .byte 0 # End of abbrev list
+.Lnames_abbrev_end0:
+.Lnames_entries0:
+.Lnames_end0:
diff --git a/llvm/test/tools/llvm-dwarfdump/X86/debug-names-verify-completeness.s b/llvm/test/tools/llvm-dwarfdump/X86/debug-names-verify-completeness.s
index b16f8658f87ecaa..9886968fdab9968 100644
--- a/llvm/test/tools/llvm-dwarfdump/X86/debug-names-verify-completeness.s
+++ b/llvm/test/tools/llvm-dwarfdump/X86/debug-names-verify-completeness.s
@@ -177,4 +177,3 @@
.Lnames_abbrev_end0:
.Lnames_entries0:
.Lnames_end0:
-
>From 63113cf699762747ee56a064fdf75d26dde7b5cb Mon Sep 17 00:00:00 2001
From: David Young <davidayoung at meta.com>
Date: Wed, 29 Jan 2025 12:26:55 -0800
Subject: [PATCH 2/2] Add test for dwarf verification JSON output (2/2)
---
.../X86/debug-names-verify-completeness.s | 1 +
.../X86/dwarf-verify-good-json-output.s | 32 +++++++++++++++++++
2 files changed, 33 insertions(+)
create mode 100644 llvm/test/tools/llvm-dwarfdump/X86/dwarf-verify-good-json-output.s
diff --git a/llvm/test/tools/llvm-dwarfdump/X86/debug-names-verify-completeness.s b/llvm/test/tools/llvm-dwarfdump/X86/debug-names-verify-completeness.s
index 9886968fdab9968..b16f8658f87ecaa 100644
--- a/llvm/test/tools/llvm-dwarfdump/X86/debug-names-verify-completeness.s
+++ b/llvm/test/tools/llvm-dwarfdump/X86/debug-names-verify-completeness.s
@@ -177,3 +177,4 @@
.Lnames_abbrev_end0:
.Lnames_entries0:
.Lnames_end0:
+
diff --git a/llvm/test/tools/llvm-dwarfdump/X86/dwarf-verify-good-json-output.s b/llvm/test/tools/llvm-dwarfdump/X86/dwarf-verify-good-json-output.s
new file mode 100644
index 000000000000000..6f4b1cdedf83ab4
--- /dev/null
+++ b/llvm/test/tools/llvm-dwarfdump/X86/dwarf-verify-good-json-output.s
@@ -0,0 +1,32 @@
+# RUN: llvm-mc %s -filetype obj -triple x86_64-apple-darwin -o - | llvm-dwarfdump -verify --verify-json=%t.json -
+# RUN: FileCheck %s --input-file %t.json
+
+# CHECK: {"error-categories":{},"error-count":0}
+
+# This test is meant to verify that the -verify option
+# in llvm-dwarfdump doesn't produce any .apple_names related
+# output when there's no such section in the object.
+# The test was manually modified to exclude the
+# .apple_names section from the apple_names_verify_num_atoms.s
+# test file in the same directory.
+
+ .section __TEXT,__text,regular,pure_instructions
+ .file 1 "basic.c"
+ .comm _i,4,2 ## @i
+ .comm _j,4,2 ## @j
+ .section __DWARF,__debug_str,regular,debug
+Linfo_string:
+ .asciz "Apple LLVM version 8.1.0 (clang-802.0.35)" ## string offset=0
+ .asciz "basic.c" ## string offset=42
+ .asciz "/Users/sgravani/Development/tests" ## string offset=50
+ .asciz "i" ## string offset=84
+ .asciz "int" ## string offset=86
+ .asciz "j" ## string offset=90
+
+ .section __DWARF,__debug_info,regular,debug
+Lsection_info:
+
+.subsections_via_symbols
+ .section __DWARF,__debug_line,regular,debug
+Lsection_line:
+Lline_table_start0:
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