https://bugs.llvm.org/show_bug.cgi?id=35718
Bug ID: 35718
Summary: [llvm-mc] - llvm-mc does not handle .debug_types
correctly
Product: libraries
Version: trunk
Hardware: PC
OS: Windows NT
Status: NEW
Severity: enhancement
Priority: P
Component: MC
Assignee: unassignedb...@nondot.org
Reporter: gri...@accesssoftek.com
CC: llvm-bugs@lists.llvm.org
Created attachment 19584
--> https://bugs.llvm.org/attachment.cgi?id=19584&action=edit
text file with source
Something wrong with how llvm-mc handles debug_types it seems.
Attached source file, compiled with
GNU assembler version 2.29.51 (x86_64-pc-linux-gnu)
using BFD version (GNU Binutils) 2.29.51.20171006
contains:
COMDAT group section [ 1] `.group' [aaa] contains 1 sections:
[Index] Name
[ 8] .aaa
COMDAT group section [ 2] `.group' [bbb] contains 1 sections:
[Index] Name
[ 9] .bbb
COMDAT group section [ 3] `.group' [ccc] contains 1 sections:
[Index] Name
[ 10] .ccc
COMDAT group section [ 4] `.group' [5657452045627120676] contains 2
sections:
[Index] Name
[ 11] .debug_types
[ 12] .rela.debug_types
llvm-mc (r321060) output for the same is:
COMDAT group section [ 3] `.group' [aaa] contains 1 sections:
[Index] Name
[ 4] .aaa
COMDAT group section [ 5] `.group' [bbb] contains 1 sections:
[Index] Name
[ 6] .bbb
COMDAT group section [ 7] `.group' [ccc] contains 2 sections:
[Index] Name
[ 8] .ccc
[ 9] .rela.ccc
Looks it treats .rela.debug_types as .rela.ccc
When I remove sections .aaa, .bbb, .ccc from code, then gas output is:
COMDAT group section [ 1] `.group' [5657452045627120676] contains 2
sections:
[Index] Name
[ 5] .debug_types
[ 6] .rela.debug_types
And llvm-mc emits no groups at all:
There are no section groups in this file.
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