+++ /dev/null
-/* Copyright 2010-2017 Free Software Foundation, Inc.
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 3 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program. If not, see <http://www.gnu.org/licenses/>. */
-
- .section .debug_info
-d:
- /* Length of Compilation Unit Info */
-#if OFFSET_SIZE == 4
-# define OFFSET .4byte
-# define HEADER_LINE1
-# define HEADER_LINE2(END) .4byte END - 1f
-#elif OFFSET_SIZE == 8
-# define OFFSET .8byte
-# define HEADER_LINE1 .4byte 0xffffffff
-# define HEADER_LINE2(END) .8byte END - 1f
-#else
-# error
-#endif
-#if ADDR_SIZE == 4
-# define ADDR .4byte
-#elif ADDR_SIZE == 8
-# define ADDR .8byte
-#else
-# error
-#endif
-#if REF_ADDR_SIZE == 4
-# define REF_ADDR .4byte
-#elif REF_ADDR_SIZE == 8
-# define REF_ADDR .8byte
-#else
-# error
-#endif
-
-#if TWO_CU
-# define END1 .Lcu_end_1
-#else
-# define END1 debug_end
-#endif
-
- HEADER_LINE1
- HEADER_LINE2(END1)
-
-1:
- .2byte DWARF_VERSION /* DWARF version number */
- OFFSET .Ldebug_abbrev0 /* Offset Into Abbrev. Section */
- .byte ADDR_SIZE /* Pointer Size (in bytes) */
-
- .uleb128 0x1 /* (DIE (0xb) DW_TAG_compile_unit) */
- .ascii "GNU C 4.4.3\0" /* DW_AT_producer */
- .byte 0x1 /* DW_AT_language */
- .ascii "1.c\0" /* DW_AT_name */
-
-.Ltype_int:
- .uleb128 0x7 /* DW_TAG_base_type */
- .byte 0x4 /* DW_AT_byte_size */
- .byte 0x5 /* DW_AT_encoding */
- .ascii "int\0" /* DW_AT_name */
-
-.Ltype_struct:
- .uleb128 0x2 /* DW_TAG_structure_type */
- .ascii "s\0" /* DW_AT_name */
- .byte 4 /* DW_AT_byte_size */
-
- .uleb128 0x3 /* DW_TAG_member */
- .ascii "f\0" /* DW_AT_name */
- .4byte .Ltype_int - d /* DW_AT_type */
- .byte 0 /* DW_AT_data_member_location */
-
- .byte 0x0 /* end of children of DW_TAG_structure_type */
-
-.Ltype_structptr:
- .uleb128 0x5 /* DW_TAG_pointer_type */
- .byte ADDR_SIZE /* DW_AT_byte_size */
- .4byte .Ltype_struct - d /* DW_AT_type */
-
-.Lvar_out:
- .uleb128 0x4 /* (DW_TAG_variable) */
- .ascii "v\0" /* DW_AT_name */
- .byte 2f - 1f /* DW_AT_location: DW_FORM_block1 */
-1:
- .byte 0x9e /* DW_OP_implicit_value */
- .uleb128 2f - 3f
-3:
- .byte 1, 1, 1, 1
-2:
- REF_ADDR .Ltype_struct - d /* DW_AT_type */
-
-#if TWO_CU
- .byte 0x0 /* end of children of CU */
-.Lcu_end_1:
-
- HEADER_LINE1
- HEADER_LINE2 (debug_end)
-
-1:
- .2byte DWARF_VERSION /* DWARF version number */
- OFFSET .Ldebug_abbrev0 /* Offset Into Abbrev. Section */
- .byte ADDR_SIZE /* Pointer Size (in bytes) */
-
- .uleb128 0x1 /* (DIE (0xb) DW_TAG_compile_unit) */
- .ascii "GNU C 4.4.3\0" /* DW_AT_producer */
- .byte 0x1 /* DW_AT_language */
- .ascii "1.c\0" /* DW_AT_name */
-#endif
-
- .uleb128 6 /* Abbrev: DW_TAG_subprogram */
- .ascii "main\0" /* DW_AT_name */
- ADDR main /* DW_AT_low_pc */
- ADDR main + 0x100 /* DW_AT_high_pc */
- REF_ADDR .Ltype_int - d /* DW_AT_type */
- .byte 1 /* DW_AT_external */
-
- .uleb128 0x4 /* (DW_TAG_variable) */
- .ascii "p\0" /* DW_AT_name */
- .byte 2f - 1f /* DW_AT_location: DW_FORM_block1 */
-1:
- .byte 0xf2 /* DW_OP_GNU_implicit_pointer */
- REF_ADDR .Lvar_out - d /* referenced DIE */
- .sleb128 0 /* offset */
-2:
- REF_ADDR .Ltype_structptr - d /* DW_AT_type */
-
- .byte 0x0 /* end of children of main */
-
- .byte 0x0 /* end of children of CU */
-debug_end:
-
- .section .debug_abbrev
-.Ldebug_abbrev0:
-
- .uleb128 0x1 /* (abbrev code) */
- .uleb128 0x11 /* (TAG: DW_TAG_compile_unit) */
- .byte 0x1 /* DW_children_yes */
- .uleb128 0x25 /* (DW_AT_producer) */
- .uleb128 0x8 /* (DW_FORM_string) */
- .uleb128 0x13 /* (DW_AT_language) */
- .uleb128 0xb /* (DW_FORM_data1) */
- .uleb128 0x3 /* (DW_AT_name) */
- .uleb128 0x8 /* (DW_FORM_string) */
- .byte 0x0
- .byte 0x0
-
- .uleb128 0x2 /* (abbrev code) */
- .uleb128 0x13 /* (TAG: DW_TAG_structure_type) */
- .byte 0x1 /* DW_children_yes */
- .uleb128 0x3 /* (DW_AT_name) */
- .uleb128 0x8 /* (DW_FORM_string) */
- .uleb128 0xb /* (DW_AT_byte_size) */
- .uleb128 0xb /* (DW_FORM_data1) */
- .byte 0
- .byte 0
-
- .uleb128 0x3 /* (abbrev code) */
- .uleb128 0xd /* (TAG: DW_TAG_member) */
- .byte 0 /* DW_children_no */
- .uleb128 0x3 /* (DW_AT_name) */
- .uleb128 0x8 /* (DW_FORM_string) */
- .uleb128 0x49 /* (DW_AT_type) */
- .uleb128 0x13 /* (DW_FORM_ref4) */
- .uleb128 0x38 /* (DW_AT_data_member_location) */
- .uleb128 0xb /* (DW_FORM_data1) */
- .byte 0
- .byte 0
-
- .uleb128 0x4 /* (abbrev code) */
- .uleb128 0x34 /* (TAG: DW_TAG_variable) */
- .byte 0x0 /* DW_children_yes */
- .uleb128 0x3 /* (DW_AT_name) */
- .uleb128 0x8 /* (DW_FORM_string) */
- .uleb128 0x02 /* (DW_AT_location) */
- .uleb128 0xa /* (DW_FORM_block1) */
- .uleb128 0x49 /* (DW_AT_type) */
- .uleb128 0x10 /* (DW_FORM_ref_addr) */
- .byte 0x0
- .byte 0x0
-
- .uleb128 0x5 /* (abbrev code) */
- .uleb128 0xf /* (TAG: DW_TAG_pointer_type) */
- .byte 0x0 /* DW_children_no */
- .uleb128 0xb /* (DW_AT_byte_size) */
- .uleb128 0xb /* (DW_FORM_data1) */
- .uleb128 0x49 /* (DW_AT_type) */
- .uleb128 0x13 /* (DW_FORM_ref4) */
- .byte 0x0
- .byte 0x0
-
- .uleb128 6 /* Abbrev code */
- .uleb128 0x2e /* DW_TAG_subprogram */
- .byte 1 /* has_children */
- .uleb128 0x3 /* DW_AT_name */
- .uleb128 0x8 /* DW_FORM_string */
- .uleb128 0x11 /* DW_AT_low_pc */
- .uleb128 0x1 /* DW_FORM_addr */
- .uleb128 0x12 /* DW_AT_high_pc */
- .uleb128 0x1 /* DW_FORM_addr */
- .uleb128 0x49 /* DW_AT_type */
- .uleb128 0x10 /* DW_FORM_ref_addr */
- .uleb128 0x3f /* DW_AT_external */
- .uleb128 0xc /* DW_FORM_flag */
- .byte 0x0 /* Terminator */
- .byte 0x0 /* Terminator */
-
- .uleb128 0x7 /* (abbrev code) */
- .uleb128 0x24 /* (TAG: DW_TAG_base_type) */
- .byte 0 /* DW_children_no */
- .uleb128 0xb /* (DW_AT_byte_size) */
- .uleb128 0xb /* (DW_FORM_data1) */
- .uleb128 0x3e /* (DW_AT_encoding) */
- .uleb128 0xb /* (DW_FORM_data1) */
- .uleb128 0x3 /* (DW_AT_name) */
- .uleb128 0x8 /* (DW_FORM_string) */
- .byte 0
- .byte 0
-
- .byte 0x0
return 0
}
-standard_testfile .S
-set mainfile main.c
+standard_testfile main.c
proc test { dwarf_version offset_size addr_size ref_addr_size two_cu } {
- global testfile srcfile mainfile
+ global testfile srcfile
- # 32-bit targets do not support any of the testcases; keep quiet there.
- set opts {quiet}
- foreach n { dwarf_version offset_size addr_size ref_addr_size two_cu } {
- lappend opts "additional_flags=-D[string toupper $n]=[expr "\$$n"]"
+ set name "d${dwarf_version}o${offset_size}a${addr_size}r${ref_addr_size}t${two_cu}"
+
+ # Make some DWARF for the test.
+ set asm_file [standard_output_file ${testfile}-${name}.S]
+ Dwarf::assemble $asm_file {
+ upvar dwarf_version dwarf_version
+ upvar addr_size addr_size
+ upvar offset_size offset_size
+ upvar ref_addr_size ref_addr_size
+ upvar two_cu two_cu
+
+ set is_64 [expr { $offset_size == 4 ? 0 : 1 }]
+
+ cu {
+ version $dwarf_version
+ addr_size $addr_size
+ is_64 $is_64
+ } {
+ compile_unit {
+ { producer "GNU C 4.4.3" }
+ { language @DW_LANG_C89 }
+ { name 1.c }
+ } {
+ declare_labels struct_label variable_label int_label pointer_label
+
+ int_label: base_type {
+ { byte_size 4 DW_FORM_sdata }
+ { DW_AT_encoding @DW_ATE_signed }
+ { name int }
+ }
+
+ struct_label: structure_type {
+ { name s }
+ { byte_size 4 sdata }
+ } {
+ member {
+ { name f }
+ { type :$int_label }
+ { data_member_location 0 data1 }
+ }
+ }
+
+ pointer_label: pointer_type {
+ { byte_size $Dwarf::_cu_addr_size sdata }
+ { type :$struct_label }
+ }
+
+ variable_label: DW_TAG_variable {
+ { name v }
+ { location {
+ DW_OP_implicit_value 0x1 0x1 0x1 0x1
+ } SPECIAL_expr}
+ { type :$struct_label "DW_FORM_ref$ref_addr_size" }
+ }
+
+ if { !$two_cu } {
+ subprogram {
+ { name main }
+ { low_pc main addr }
+ { high_pc "main+0x100" addr }
+ { type %$int_label }
+ { external 1 flag }
+ } {
+ DW_TAG_variable {
+ { name p }
+ { location {
+ GNU_implicit_pointer $variable_label 0
+ } SPECIAL_expr }
+ { type :$pointer_label "DW_FORM_ref$ref_addr_size" }
+ }
+ }
+ }
+ }
+ }
+
+ if { $two_cu } {
+ cu {
+ version $dwarf_version
+ addr_size $addr_size
+ is_64 $is_64
+ } {
+ compile_unit {
+ { producer "GNU C 4.4.3" }
+ { language @DW_LANG_C89 }
+ { name 1.c }
+ } {
+ subprogram {
+ { name main }
+ { low_pc main addr }
+ { high_pc "main+0x100" addr }
+ { type %$int_label }
+ { external 1 flag }
+ } {
+ DW_TAG_variable {
+ { name p }
+ { location {
+ GNU_implicit_pointer $variable_label 0
+ } SPECIAL_expr }
+ { type %$pointer_label }
+ }
+ }
+ }
+ }
+ }
}
- set name "d${dwarf_version}o${offset_size}a${addr_size}r${ref_addr_size}t${two_cu}"
+ # 32-bit targets do not support any of the testcases; keep quiet there.
+ set opts {quiet}
set executable ${testfile}-${name}
- if [prepare_for_testing "failed to prepare" $executable "${srcfile} ${mainfile}" $opts] {
+ if [prepare_for_testing "failed to prepare" $executable "${asm_file} ${srcfile}" $opts] {
return -1
}
# * If VALUE starts with the ":" character, then it is a label
# reference. The rest of VALUE is taken to be the name of a label,
# and DW_FORM_ref4 is used. See 'new_label' and 'define_label'.
+# * If VALUE starts with the "%" character, then it is a label
+# reference too, but DW_FORM_ref_addr is used.
# * Otherwise, VALUE is taken to be a string and DW_FORM_string is
# used. In order to prevent bugs where a numeric value is given but
# no form is specified, it is an error if the value looks like a number
return DW_FORM_ref4
}
+ % {
+ # Label reference, an offset from .debug_info. Assuming
+ # .Lcu1_begin is on .debug_info.
+ set cu1_label [_compute_label "cu1_begin"]
+ set new_value "[string range $value 1 end] - $cu1_label"
+
+ return DW_FORM_ref_addr
+ }
+
default {
return DW_FORM_string
}
_handle_macro_at_range $attr_value
} else {
if {[llength $attr] > 2} {
- set attr_form [lindex $attr end]
+ set attr_form [uplevel 2 [list subst [lindex $attr end]]]
+
+ if { [string index $attr_value 0] == ":" } {
+ # It is a label, get its value.
+ _guess_form $attr_value attr_value
+ }
} else {
# If the value looks like an integer, a form is required.
if [string is integer $attr_value] {
_op .2byte [lindex $line 1]
}
+ DW_OP_implicit_value {
+ set l1 [new_label "value_start"]
+ set l2 [new_label "value_end"]
+ _op .uleb128 "$l2 - $l1"
+ define_label $l1
+ foreach value [lrange $line 1 end] {
+ switch -regexp -- $value {
+ {^0x[[:xdigit:]]{1,2}$} {_op .byte $value}
+ {^0x[[:xdigit:]]{4}$} {_op .2byte $value}
+ {^0x[[:xdigit:]]{8}$} {_op .4byte $value}
+ {^0x[[:xdigit:]]{16}$} {_op .8byte $value}
+ default {
+ error "bad value '$value' in DW_OP_implicit_value"
+ }
+ }
+ }
+ define_label $l2
+ }
+
DW_OP_GNU_implicit_pointer {
if {[llength $line] != 3} {
error "usage: DW_OP_GNU_implicit_pointer LABEL OFFSET"
set _abbrev_section ".debug_abbrev"
foreach { name value } $options {
+ set value [uplevel 1 "subst \"$value\""]
switch -exact -- $name {
is_64 { set is_64 $value }
version { set _cu_version $value }
projects / binutils-gdb.git / commitdiff