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[PATCH 2/5] readelf: Print abbrev code for DIE with --debug-dump=info.
- From: Mark Wielaard <mark at klomp dot org>
- To: elfutils-devel at sourceware dot org
- Cc: Mark Wielaard <mark at klomp dot org>
- Date: Wed, 29 Nov 2017 17:05:50 +0100
- Subject: [PATCH 2/5] readelf: Print abbrev code for DIE with --debug-dump=info.
- Authentication-results: sourceware.org; auth=none
- References: <1511971553-30135-1-git-send-email-mark@klomp.org>
If there is anything wrong with a DIE it is useful to know what the abbrev
code was so you can lookup the abbrev description.
Signed-off-by: Mark Wielaard <mark@klomp.org>
---
src/ChangeLog | 4 +++
src/readelf.c | 9 ++++---
tests/ChangeLog | 5 ++++
tests/run-readelf-dwz-multi.sh | 60 ++++++++++++++++++++---------------------
tests/run-readelf-zdebug-rel.sh | 22 +++++++--------
5 files changed, 56 insertions(+), 44 deletions(-)
diff --git a/src/ChangeLog b/src/ChangeLog
index b88c319..e7e598d 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,5 +1,9 @@
2017-11-29 Mark Wielaard <mark@klomp.org>
+ * readelf.c (print_debug_units): Print abbrev code after DIE tag.
+
+2017-11-29 Mark Wielaard <mark@klomp.org>
+
* readelf.c (print_ops): Use only2 space for index. re-indent +5
for DW_OP_GNU_entry_value.
diff --git a/src/readelf.c b/src/readelf.c
index 2faa1d5..e9887c4 100644
--- a/src/readelf.c
+++ b/src/readelf.c
@@ -6371,9 +6371,12 @@ print_debug_units (Dwfl_Module *dwflmod,
}
if (!silent)
- printf (" [%6" PRIx64 "] %*s%s\n",
- (uint64_t) offset, (int) (level * 2), "",
- dwarf_tag_name (tag));
+ {
+ unsigned int code = dwarf_getabbrevcode (dies[level].abbrev);
+ printf (" [%6" PRIx64 "] %*s%-20s abbrev: %u\n",
+ (uint64_t) offset, (int) (level * 2), "",
+ dwarf_tag_name (tag), code);
+ }
/* Print the attribute values. */
args.level = level;
diff --git a/tests/ChangeLog b/tests/ChangeLog
index 9633cd1..f522a69 100644
--- a/tests/ChangeLog
+++ b/tests/ChangeLog
@@ -1,5 +1,10 @@
2017-11-29 Mark Wielaard <mark@klomp.org>
+ * run-readelf-dwz-multi.sh: Add expected abbrev codes.
+ * run-readelf-zdebug-rel.sh: Likewise.
+
+2017-11-29 Mark Wielaard <mark@klomp.org>
+
* run-readelf-dwz-multi.sh: Adjust expected ops index spaces.
* run-readelf-loc.sh: Likewise.
* run-readelf-zdebug-rel.sh: Likewise.
diff --git a/tests/run-readelf-dwz-multi.sh b/tests/run-readelf-dwz-multi.sh
index 139b8c1..21456fd 100755
--- a/tests/run-readelf-dwz-multi.sh
+++ b/tests/run-readelf-dwz-multi.sh
@@ -84,7 +84,7 @@ DWARF section [28] '.debug_info' at offset 0x1078:
[Offset]
Compilation unit at offset 0:
Version: 4, Abbreviation section offset: 0, Address size: 8, Offset size: 4
- [ b] compile_unit
+ [ b] compile_unit abbrev: 6
producer (strp) "GNU C 4.7.0 20120507 (Red Hat 4.7.0-5) -mtune=generic -march=x86-64 -g"
language (data1) C89 (1)
name (strp) "main.c"
@@ -92,12 +92,12 @@ DWARF section [28] '.debug_info' at offset 0x1078:
low_pc (addr) 0x00000000004006ac <main>
high_pc (udata) 44 (0x00000000004006d8)
stmt_list (sec_offset) 0
- [ 26] imported_unit
+ [ 26] imported_unit abbrev: 5
import (GNU_ref_alt) [ b]
- [ 2b] pointer_type
+ [ 2b] pointer_type abbrev: 1
byte_size (data1) 8
type (GNU_ref_alt) [ 53]
- [ 31] subprogram
+ [ 31] subprogram abbrev: 3
external (flag_present) yes
name (strp) "main"
decl_file (data1) 1
@@ -110,28 +110,28 @@ DWARF section [28] '.debug_info' at offset 0x1078:
[ 0] call_frame_cfa
GNU_all_tail_call_sites (flag_present) yes
sibling (ref_udata) [ 6e]
- [ 48] formal_parameter
+ [ 48] formal_parameter abbrev: 8
name (strp) "argc"
decl_file (data1) 1
decl_line (data1) 3
type (GNU_ref_alt) [ 3e]
location (exprloc)
[ 0] fbreg -36
- [ 56] formal_parameter
+ [ 56] formal_parameter abbrev: 4
name (strp) "argv"
decl_file (data1) 1
decl_line (data1) 3
type (ref_udata) [ 6e]
location (exprloc)
[ 0] fbreg -48
- [ 61] variable
+ [ 61] variable abbrev: 7
name (string) "b"
decl_file (data1) 1
decl_line (data1) 5
type (GNU_ref_alt) [ 5a]
location (exprloc)
[ 0] fbreg -32
- [ 6e] pointer_type
+ [ 6e] pointer_type abbrev: 2
byte_size (data1) 8
type (ref_udata) [ 2b]
EOF
@@ -145,7 +145,7 @@ DWARF section [28] '.debug_info' at offset 0x1078:
[Offset]
Compilation unit at offset 0:
Version: 4, Abbreviation section offset: 0, Address size: 8, Offset size: 4
- [ b] compile_unit
+ [ b] compile_unit abbrev: 6
producer (strp) "GNU C 4.7.0 20120507 (Red Hat 4.7.0-5) -mtune=generic -march=x86-64 -g"
language (data1) C89 (1)
name (strp) "main.c"
@@ -153,12 +153,12 @@ DWARF section [28] '.debug_info' at offset 0x1078:
low_pc (addr) 0x00000000004006ac <main>
high_pc (udata) 44 (0x00000000004006d8)
stmt_list (sec_offset) 0
- [ 26] imported_unit
+ [ 26] imported_unit abbrev: 5
import (GNU_ref_alt) [ b]
- [ 2b] pointer_type
+ [ 2b] pointer_type abbrev: 1
byte_size (data1) 8
type (GNU_ref_alt) [ 53]
- [ 31] subprogram
+ [ 31] subprogram abbrev: 3
external (flag_present) yes
name (strp) "main"
decl_file (data1) 1
@@ -171,28 +171,28 @@ DWARF section [28] '.debug_info' at offset 0x1078:
[ 0] call_frame_cfa
GNU_all_tail_call_sites (flag_present) yes
sibling (ref_udata) [ 6e]
- [ 48] formal_parameter
+ [ 48] formal_parameter abbrev: 8
name (strp) "argc"
decl_file (data1) 1
decl_line (data1) 3
type (GNU_ref_alt) [ 3e]
location (exprloc)
[ 0] fbreg -36
- [ 56] formal_parameter
+ [ 56] formal_parameter abbrev: 4
name (strp) "argv"
decl_file (data1) 1
decl_line (data1) 3
type (ref_udata) [ 6e]
location (exprloc)
[ 0] fbreg -48
- [ 61] variable
+ [ 61] variable abbrev: 7
name (string) "b"
decl_file (data1) 1
decl_line (data1) 5
type (GNU_ref_alt) [ 5a]
location (exprloc)
[ 0] fbreg -32
- [ 6e] pointer_type
+ [ 6e] pointer_type abbrev: 2
byte_size (data1) 8
type (ref_udata) [ 2b]
EOF
@@ -205,7 +205,7 @@ DWARF section [25] '.debug_info' at offset 0x106c:
[Offset]
Compilation unit at offset 0:
Version: 4, Abbreviation section offset: 0, Address size: 8, Offset size: 4
- [ b] compile_unit
+ [ b] compile_unit abbrev: 3
producer (strp) "GNU C 4.7.0 20120507 (Red Hat 4.7.0-5) -fpreprocessed -mtune=generic -march=x86-64 -g -fPIC"
language (data1) C89 (1)
name (strp) "shared.c"
@@ -213,9 +213,9 @@ DWARF section [25] '.debug_info' at offset 0x106c:
low_pc (addr) +0x0000000000000670 <call_foo>
high_pc (udata) 23 (+0x0000000000000687)
stmt_list (sec_offset) 0
- [ 26] imported_unit
+ [ 26] imported_unit abbrev: 2
import (GNU_ref_alt) [ b]
- [ 2b] subprogram
+ [ 2b] subprogram abbrev: 1
external (flag_present) yes
name (strp) "call_foo"
decl_file (data1) 1
@@ -227,7 +227,7 @@ DWARF section [25] '.debug_info' at offset 0x106c:
frame_base (exprloc)
[ 0] call_frame_cfa
GNU_all_call_sites (flag_present) yes
- [ 41] formal_parameter
+ [ 41] formal_parameter abbrev: 4
name (string) "fb"
decl_file (data1) 1
decl_line (data1) 3
@@ -245,7 +245,7 @@ DWARF section [25] '.debug_info' at offset 0x106c:
[Offset]
Compilation unit at offset 0:
Version: 4, Abbreviation section offset: 0, Address size: 8, Offset size: 4
- [ b] compile_unit
+ [ b] compile_unit abbrev: 3
producer (strp) "GNU C 4.7.0 20120507 (Red Hat 4.7.0-5) -fpreprocessed -mtune=generic -march=x86-64 -g -fPIC"
language (data1) C89 (1)
name (strp) "shared.c"
@@ -253,9 +253,9 @@ DWARF section [25] '.debug_info' at offset 0x106c:
low_pc (addr) +0x0000000000000670 <call_foo>
high_pc (udata) 23 (+0x0000000000000687)
stmt_list (sec_offset) 0
- [ 26] imported_unit
+ [ 26] imported_unit abbrev: 2
import (GNU_ref_alt) [ b]
- [ 2b] subprogram
+ [ 2b] subprogram abbrev: 1
external (flag_present) yes
name (strp) "call_foo"
decl_file (data1) 1
@@ -267,7 +267,7 @@ DWARF section [25] '.debug_info' at offset 0x106c:
frame_base (exprloc)
[ 0] call_frame_cfa
GNU_all_call_sites (flag_present) yes
- [ 41] formal_parameter
+ [ 41] formal_parameter abbrev: 4
name (string) "fb"
decl_file (data1) 1
decl_line (data1) 3
@@ -284,7 +284,7 @@ DWARF section [28] '.debug_info' at offset 0x1088:
[Offset]
Compilation unit at offset 0:
Version: 4, Abbreviation section offset: 0, Address size: 8, Offset size: 4
- [ b] compile_unit
+ [ b] compile_unit abbrev: 5
producer (GNU_strp_alt) "GNU C 4.7.2 20121109 (Red Hat 4.7.2-8) -mtune=generic -march=x86-64 -g"
language (data1) C89 (1)
name (GNU_strp_alt) "main.c"
@@ -292,9 +292,9 @@ DWARF section [28] '.debug_info' at offset 0x1088:
low_pc (addr) 0x00000000004004ec <main>
high_pc (udata) 18 (0x00000000004004fe)
stmt_list (sec_offset) 0
- [ 26] imported_unit
+ [ 26] imported_unit abbrev: 2
import (GNU_ref_alt) [ b]
- [ 2b] subprogram
+ [ 2b] subprogram abbrev: 4
external (flag_present) yes
name (GNU_strp_alt) "main"
decl_file (data1) 1
@@ -306,21 +306,21 @@ DWARF section [28] '.debug_info' at offset 0x1088:
frame_base (exprloc)
[ 0] call_frame_cfa
GNU_all_call_sites (flag_present) yes
- [ 41] formal_parameter
+ [ 41] formal_parameter abbrev: 1
name (GNU_strp_alt) "argc"
decl_file (data1) 1
decl_line (data1) 8
type (GNU_ref_alt) [ 30]
location (exprloc)
[ 0] fbreg -36
- [ 4f] formal_parameter
+ [ 4f] formal_parameter abbrev: 1
name (GNU_strp_alt) "argv"
decl_file (data1) 1
decl_line (data1) 8
type (GNU_ref_alt) [ 41]
location (exprloc)
[ 0] fbreg -48
- [ 5d] variable
+ [ 5d] variable abbrev: 3
name (string) "fbb"
decl_file (data1) 1
decl_line (data1) 10
diff --git a/tests/run-readelf-zdebug-rel.sh b/tests/run-readelf-zdebug-rel.sh
index 082971e..93201ae 100755
--- a/tests/run-readelf-zdebug-rel.sh
+++ b/tests/run-readelf-zdebug-rel.sh
@@ -51,7 +51,7 @@ DWARF section [ 4] '.debug_info' at offset 0x58:
[Offset]
Compilation unit at offset 0:
Version: 4, Abbreviation section offset: 0, Address size: 8, Offset size: 4
- [ b] compile_unit
+ [ b] compile_unit abbrev: 1
producer (strp) "GNU C11 5.3.1 20151207 (Red Hat 5.3.1-2) -mtune=generic -march=x86-64 -g -Og"
language (data1) C99 (12)
name (strp) "testfile-zdebug-rel.c"
@@ -59,7 +59,7 @@ DWARF section [ 4] '.debug_info' at offset 0x58:
low_pc (addr) 000000000000000000
high_pc (data8) 24 (0x0000000000000018)
stmt_list (sec_offset) 0
- [ 2d] subprogram
+ [ 2d] subprogram abbrev: 2
external (flag_present) yes
name (strp) "main"
decl_file (data1) 1
@@ -72,47 +72,47 @@ DWARF section [ 4] '.debug_info' at offset 0x58:
[ 0] call_frame_cfa
GNU_all_call_sites (flag_present) yes
sibling (ref4) [ 80]
- [ 4e] formal_parameter
+ [ 4e] formal_parameter abbrev: 3
name (strp) "argc"
decl_file (data1) 1
decl_line (data1) 4
type (ref4) [ 80]
location (sec_offset) location list [ 0]
- [ 5d] formal_parameter
+ [ 5d] formal_parameter abbrev: 4
name (strp) "argv"
decl_file (data1) 1
decl_line (data1) 4
type (ref4) [ 87]
location (exprloc)
[ 0] reg4
- [ 6a] variable
+ [ 6a] variable abbrev: 5
name (string) "a"
decl_file (data1) 1
decl_line (data1) 6
type (ref4) [ 9a]
const_value (sdata) -9
- [ 74] variable
+ [ 74] variable abbrev: 6
name (string) "b"
decl_file (data1) 1
decl_line (data1) 7
type (ref4) [ 9a]
location (exprloc)
[ 0] reg5
- [ 80] base_type
+ [ 80] base_type abbrev: 7
byte_size (data1) 4
encoding (data1) signed (5)
name (string) "int"
- [ 87] pointer_type
+ [ 87] pointer_type abbrev: 8
byte_size (data1) 8
type (ref4) [ 8d]
- [ 8d] pointer_type
+ [ 8d] pointer_type abbrev: 8
byte_size (data1) 8
type (ref4) [ 93]
- [ 93] base_type
+ [ 93] base_type abbrev: 9
byte_size (data1) 1
encoding (data1) signed_char (6)
name (strp) "char"
- [ 9a] base_type
+ [ 9a] base_type abbrev: 9
byte_size (data1) 8
encoding (data1) unsigned (7)
name (strp) "long unsigned int"
--
1.8.3.1