DWARF debug headers missing from OSX native binaries produced by RyuJIT

[tijoytom-zz]

Follow the documentation https://github.com/dotnet/corert/blob/master/Documentation/how-to-build-and-run-ilcompiler-in-console-shell-prompt.md to setup ILC compiler to work with CLI

Linux ( Ubunutu 14.04LTE)
objdump -h bin/Debug/netcoreapp1.0/native/hello

Idx Name Size VMA LMA File off Algn
0 .interp 0000001c 0000000000400270 0000000000400270 00000270 20
CONTENTS, ALLOC, LOAD, READONLY, DATA
1 .note.ABI-tag 00000020 000000000040028c 000000000040028c 0000028c 22
CONTENTS, ALLOC, LOAD, READONLY, DATA
35 .debug_abbrev 000116d3 0000000000000000 0000000000000000 009ab231 20
CONTENTS, READONLY, DEBUGGING
36 .debug_line 000a3009 0000000000000000 0000000000000000 009bc904 20
CONTENTS, READONLY, DEBUGGING
37 .debug_str 0005a627 0000000000000000 0000000000000000 00a5f90d 20
CONTENTS, READONLY, DEBUGGING
38 .debug_loc 0000eff3 0000000000000000 0000000000000000 00ab9f34 20
CONTENTS, READONLY, DEBUGGING
39 .debug_macinfo 00000040 0000000000000000 0000000000000000 00ac8f27 20
CONTENTS, READONLY, DEBUGGING
40 .debug_pubtypes 0001bac9 0000000000000000 0000000000000000 00ac8f67 20
CONTENTS, READONLY, DEBUGGING
41 .debug_ranges 00011b40 0000000000000000 0000000000000000 00ae4a30 2**0
CONTENTS, READONLY, DEBUGGING

MACOS Sierra
objdump -h bin/Debug/netcoreapp1.0/native/hello

0 __text 00121a6b 0000000100001600 TEXT
1 __stubs 0000054c 000000010012306c TEXT
2 __stub_helper 00000894 00000001001235b8 TEXT
3 __managedcode 003fb0e2 0000000100123e4c DATA
4 __const 000b6f78 000000010051ef30 DATA
5 __cstring 0001319e 00000001005d5ea8 DATA
6 __gcc_except_tab 000018a8 00000001005e9048 DATA
7 __unwind_info 0002ac60 00000001005ea8f0 DATA
8 __eh_frame 0009bab0 0000000100615550 DATA
9 __nl_symbol_ptr 00000010 00000001006b1000 DATA
10 __got 00000040 00000001006b1010 DATA
11 __la_symbol_ptr 00000710 00000001006b1050 DATA
12 __mod_init_func 00000018 00000001006b1760 DATA
13 __const 00000548 00000001006b1780 DATA
14 __data 000c75c0 00000001006b1cd0 DATA
15 __modules 00000008 0000000100779290 DATA
16 .corert_eh_table 000fe648 0000000100779298 DATA
17 __thread_vars 000000a8 00000001008778e0 DATA
18 __thread_data 000000d8 0000000100877988 DATA
19 __thread_bss 00000029 0000000100877a60 DATA
20 __bss 0000301c 0000000100878000 BSS
21 __common 000052c9 000000010087b020 BSS

[MichalStrehovsky]

FWIW, the line number information was supposedly enabled in #837. This sounds like a regression.

Dwarf debug info for types and vars is tracked in #785 and #783, respectively.

[sandreenko]

@MichalStrehovsky are you sure that it worked in the past? I have tried to checkout old commits and wasn't able to set breakpoint set -n MyFunctionName there.

[MichalStrehovsky]

@MichalStrehovsky are you sure that it worked in the past?

I don't have personal experience - I just remembered there was a commit supposedly enabling it.