// specification or abstract origin attributes and including those in the
// results. Any duplicate attributes will have the first instance take
// precedence (this can happen for declaration attributes).
-size_t DWARFDebugInfoEntry::GetAttributes(
- const DWARFUnit *cu, DWARFAttributes &attributes,
- uint32_t curr_depth) const {
+size_t DWARFDebugInfoEntry::GetAttributes(const DWARFUnit *cu,
+ DWARFAttributes &attributes,
+ Recurse recurse,
+ uint32_t curr_depth) const {
const auto *abbrevDecl = GetAbbreviationDeclarationPtr(cu);
if (abbrevDecl) {
const DWARFDataExtractor &data = cu->GetData();
break;
}
- if ((attr == DW_AT_specification) || (attr == DW_AT_abstract_origin)) {
+ if (recurse == Recurse::yes &&
+ ((attr == DW_AT_specification) || (attr == DW_AT_abstract_origin))) {
if (form_value.ExtractValue(data, &offset)) {
DWARFDIE spec_die = form_value.Reference();
if (spec_die)
spec_die.GetDIE()->GetAttributes(spec_die.GetCU(), attributes,
- curr_depth + 1);
+ recurse, curr_depth + 1);
}
} else {
llvm::Optional<uint8_t> fixed_skip_size = DWARFFormValue::GetFixedSize(form, cu);
DWARFDIE
DWARFDebugInfoEntry::GetParentDeclContextDIE(DWARFUnit *cu) const {
DWARFAttributes attributes;
- GetAttributes(cu, attributes);
+ GetAttributes(cu, attributes, Recurse::yes);
return GetParentDeclContextDIE(cu, attributes);
}
const char *DWARFDebugInfoEntry::GetQualifiedName(DWARFUnit *cu,
std::string &storage) const {
DWARFAttributes attributes;
- GetAttributes(cu, attributes);
+ GetAttributes(cu, attributes, Recurse::yes);
return GetQualifiedName(cu, attributes, storage);
}
--- /dev/null
+# This tests that lldb is compatible with DWARF-4 entry values GNU extension
+# with DW_TAG_GNU_call_site attributes order as produced by GCC:
+# 0x000000b1: DW_TAG_GNU_call_site
+# DW_AT_low_pc (0x000000000040111e)
+# DW_AT_abstract_origin (0x000000cc "a")
+# clang produces the attributes in opposite order:
+# 0x00000064: DW_TAG_GNU_call_site
+# DW_AT_abstract_origin (0x0000002a "a")
+# DW_AT_low_pc (0x0000000000401146)
+
+# REQUIRES: target-x86_64, system-linux, lld
+
+# RUN: %clang_host -o %t %s
+# RUN: %lldb %t -o r -o 'p p' -o exit | FileCheck %s
+
+# CHECK: (int) $0 = 1
+
+# The DWARF has been produced and modified from:
+# static __attribute__((noinline, noclone)) void b(int x) {
+# asm("");
+# }
+# static __attribute__((noinline, noclone)) void a(int p) {
+# b(2);
+# }
+# int main() {
+# a(1);
+# return 0;
+# }
+
+ .text
+.Ltext0:
+ .type b, @function
+b:
+ .cfi_startproc
+ ret
+ .cfi_endproc
+ .size b, .-b
+ .type a, @function
+a:
+.LVL1:
+.LFB1:
+ .cfi_startproc
+ movl $2, %edi
+.LVL2:
+ call b
+ int3
+ ret
+ .cfi_endproc
+.LFE1:
+ .size a, .-a
+ .globl main
+ .type main, @function
+main:
+.LFB2:
+ .cfi_startproc
+ movl $1, %edi
+ call a
+.LVL4:
+ movl $0, %eax
+ ret
+ .cfi_endproc
+.LFE2:
+ .size main, .-main
+.Letext0:
+ .section .debug_info,"",@progbits
+.Ldebug_info0:
+ .long .Ldebuginfo_end - .Ldebuginfo_start # Length of Compilation Unit Info
+.Ldebuginfo_start:
+ .value 0x4 # DWARF version number
+ .long .Ldebug_abbrev0 # Offset Into Abbrev. Section
+ .byte 0x8 # Pointer Size (in bytes)
+ .uleb128 0x1 # (DIE (0xb) DW_TAG_compile_unit)
+ .asciz "GNU C17 10.1.1 20200507 (Red Hat 10.1.1-1) -mtune=generic -march=x86-64 -g -Og" # DW_AT_producer: "GNU C17 10.1.1 20200507 (Red Hat 10.1.1-1) -mtune=generic -march=x86-64 -g -Og"
+ .byte 0xc # DW_AT_language
+ .asciz "DW_TAG_GNU_call_site-DW_AT_low_pc.c" # DW_AT_name
+ .asciz "" # DW_AT_comp_dir: "/home/jkratoch/t"
+ .quad .Ltext0 # DW_AT_low_pc
+ .quad .Letext0-.Ltext0 # DW_AT_high_pc
+ .uleb128 0x2 # (DIE (0x2d) DW_TAG_subprogram)
+ # DW_AT_external
+ .asciz "main" # DW_AT_name: "main"
+ .long .Ltype_int # DW_AT_type
+ .quad .LFB2 # DW_AT_low_pc
+ .quad .LFE2-.LFB2 # DW_AT_high_pc
+ .uleb128 0x1 # DW_AT_frame_base
+ .byte 0x9c # DW_OP_call_frame_cfa
+ # DW_AT_GNU_all_call_sites
+ .uleb128 0x3 # (DIE (0x4f) DW_TAG_GNU_call_site)
+ .quad .LVL4 # DW_AT_low_pc
+ .long .Lfunc_a # DW_AT_abstract_origin
+ .uleb128 0x4 # (DIE (0x5c) DW_TAG_GNU_call_site_parameter)
+ .uleb128 0x1 # DW_AT_location
+ .byte 0x55 # DW_OP_reg5
+ .uleb128 0x1 # DW_AT_GNU_call_site_value
+ .byte 0x31 # DW_OP_lit1
+ .byte 0 # end of children of DIE 0x4f
+ .byte 0 # end of children of DIE 0x2d
+.Ltype_int:
+ .uleb128 0x5 # (DIE (0x63) DW_TAG_base_type)
+ .byte 0x4 # DW_AT_byte_size
+ .byte 0x5 # DW_AT_encoding
+ .asciz "int" # DW_AT_name
+.Lfunc_a:
+ .uleb128 0x6 # (DIE (0x6a) DW_TAG_subprogram)
+ .asciz "a" # DW_AT_name
+ # DW_AT_prototyped
+ .quad .LFB1 # DW_AT_low_pc
+ .quad .LFE1-.LFB1 # DW_AT_high_pc
+ .uleb128 0x1 # DW_AT_frame_base
+ .byte 0x9c # DW_OP_call_frame_cfa
+ # DW_AT_GNU_all_call_sites
+ .uleb128 0x7 # (DIE (0x86) DW_TAG_formal_parameter)
+ .asciz "p" # DW_AT_name
+ .long .Ltype_int # DW_AT_type
+ .long .LLST0 # DW_AT_location
+ .byte 0 # end of children of DIE 0x6a
+ .byte 0 # end of children of DIE 0xb
+.Ldebuginfo_end:
+ .section .debug_abbrev,"",@progbits
+.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)
+ .uleb128 0x1b # (DW_AT_comp_dir)
+ .uleb128 0x8 # (DW_FORM_string)
+ .uleb128 0x11 # (DW_AT_low_pc)
+ .uleb128 0x1 # (DW_FORM_addr)
+ .uleb128 0x12 # (DW_AT_high_pc)
+ .uleb128 0x7 # (DW_FORM_data8)
+ .byte 0
+ .byte 0
+ .uleb128 0x2 # (abbrev code)
+ .uleb128 0x2e # (TAG: DW_TAG_subprogram)
+ .byte 0x1 # DW_children_yes
+ .uleb128 0x3f # (DW_AT_external)
+ .uleb128 0x19 # (DW_FORM_flag_present)
+ .uleb128 0x3 # (DW_AT_name)
+ .uleb128 0x8 # (DW_FORM_string)
+ .uleb128 0x49 # (DW_AT_type)
+ .uleb128 0x13 # (DW_FORM_ref4)
+ .uleb128 0x11 # (DW_AT_low_pc)
+ .uleb128 0x1 # (DW_FORM_addr)
+ .uleb128 0x12 # (DW_AT_high_pc)
+ .uleb128 0x7 # (DW_FORM_data8)
+ .uleb128 0x40 # (DW_AT_frame_base)
+ .uleb128 0x18 # (DW_FORM_exprloc)
+ .uleb128 0x2117 # (DW_AT_GNU_all_call_sites)
+ .uleb128 0x19 # (DW_FORM_flag_present)
+ .byte 0
+ .byte 0
+ .uleb128 0x3 # (abbrev code)
+ .uleb128 0x4109 # (TAG: DW_TAG_GNU_call_site)
+ .byte 0x1 # DW_children_yes
+ .uleb128 0x11 # (DW_AT_low_pc)
+ .uleb128 0x1 # (DW_FORM_addr)
+ .uleb128 0x31 # (DW_AT_abstract_origin)
+ .uleb128 0x13 # (DW_FORM_ref4)
+ .byte 0
+ .byte 0
+ .uleb128 0x4 # (abbrev code)
+ .uleb128 0x410a # (TAG: DW_TAG_GNU_call_site_parameter)
+ .byte 0 # DW_children_no
+ .uleb128 0x2 # (DW_AT_location)
+ .uleb128 0x18 # (DW_FORM_exprloc)
+ .uleb128 0x2111 # (DW_AT_GNU_call_site_value)
+ .uleb128 0x18 # (DW_FORM_exprloc)
+ .byte 0
+ .byte 0
+ .uleb128 0x5 # (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
+ .uleb128 0x6 # (abbrev code)
+ .uleb128 0x2e # (TAG: DW_TAG_subprogram)
+ .byte 0x1 # DW_children_yes
+ .uleb128 0x3 # (DW_AT_name)
+ .uleb128 0x8 # (DW_FORM_string)
+ .uleb128 0x27 # (DW_AT_prototyped)
+ .uleb128 0x19 # (DW_FORM_flag_present)
+ .uleb128 0x11 # (DW_AT_low_pc)
+ .uleb128 0x1 # (DW_FORM_addr)
+ .uleb128 0x12 # (DW_AT_high_pc)
+ .uleb128 0x7 # (DW_FORM_data8)
+ .uleb128 0x40 # (DW_AT_frame_base)
+ .uleb128 0x18 # (DW_FORM_exprloc)
+ .uleb128 0x2117 # (DW_AT_GNU_all_call_sites)
+ .uleb128 0x19 # (DW_FORM_flag_present)
+ .byte 0
+ .byte 0
+ .uleb128 0x7 # (abbrev code)
+ .uleb128 0x5 # (TAG: DW_TAG_formal_parameter)
+ .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 0x2 # (DW_AT_location)
+ .uleb128 0x17 # (DW_FORM_sec_offset)
+ .byte 0
+ .byte 0
+ .byte 0
+ .section .debug_loc,"",@progbits
+.LLST0:
+ .quad .LVL1-.Ltext0 # Location list begin address (*.LLST0)
+ .quad .LVL2-.Ltext0 # Location list end address (*.LLST0)
+ .value 0x1 # Location expression size
+ .byte 0x55 # DW_OP_reg5
+ .quad .LVL2-.Ltext0 # Location list begin address (*.LLST0)
+ .quad .LFE1-.Ltext0 # Location list end address (*.LLST0)
+ .value 0x4 # Location expression size
+ .byte 0xf3 # DW_OP_GNU_entry_value
+ .uleb128 0x1
+ .byte 0x55 # DW_OP_reg5
+ .byte 0x9f # DW_OP_stack_value
+ .quad 0 # Location list terminator begin (*.LLST0)
+ .quad 0 # Location list terminator end (*.LLST0)
+ .section .note.GNU-stack,"",@progbits
projects / platform / upstream / llvm.git / commitdiff