llunak added a comment.
Herald added a subscriber: JDevlieghere.
The DWARF in the source file appears to be broken, the test fails for me on
openSUSE 15.2 x86_64, with errors about DIE references outside of its CU. It
fails even if I try to manually compile and debug the file, with Clang git or
9, GCC 7.5 or 9, LLDB git or 9, GDB 9.2.
seli@slim:~/tmp> clang -o DW_TAG_GNU_call_site-DW_AT_low_pc.s.tmp
DW_TAG_GNU_call_site-DW_AT_low_pc.s
seli@slim:~/tmp> lldb DW_TAG_GNU_call_site-DW_AT_low_pc.s.tmp
(lldb) target create "DW_TAG_GNU_call_site-DW_AT_low_pc.s.tmp"
Current executable set to
'/home/seli/tmp/DW_TAG_GNU_call_site-DW_AT_low_pc.s.tmp' (x86_64).
(lldb) r
Process 20675 launched:
'/home/seli/tmp/DW_TAG_GNU_call_site-DW_AT_low_pc.s.tmp' (x86_64)
error: DW_TAG_GNU_call_site-DW_AT_low_pc.s.tmp DW_FORM_ref* DIE reference
0x24f is outside of its CU
error: DW_TAG_GNU_call_site-DW_AT_low_pc.s.tmp DW_FORM_ref* DIE reference
0x256 is outside of its CU
Process 20675 stopped
* thread #1, name = 'DW_TAG_GNU_call', stop reason = signal SIGTRAP
frame #0: 0x0000000000400520
DW_TAG_GNU_call_site-DW_AT_low_pc.s.tmp`a(p=<unavailable>) + 11
DW_TAG_GNU_call_site-DW_AT_low_pc.s.tmp`a:
-> 0x400520 <+11>: retq
DW_TAG_GNU_call_site-DW_AT_low_pc.s.tmp`main:
0x400521 <+0>: movl $0x1, %edi
0x400526 <+5>: callq 0x400515 ; a
0x40052b <+10>: movl $0x0, %eax
(lldb) p p
error: DW_TAG_GNU_call_site-DW_AT_low_pc.s.tmp DW_FORM_ref* DIE reference
0x24f is outside of its CU
error: DW_TAG_GNU_call_site-DW_AT_low_pc.s.tmp DW_FORM_ref* DIE reference
0x24f is outside of its CU
error: <lldb wrapper prefix>:43:31: no member named 'p' in namespace
'$__lldb_local_vars'
using $__lldb_local_vars::p;
~~~~~~~~~~~~~~~~~~~~^
error: <user expression 0>:1:1: use of undeclared identifier 'p'
p
^
seli@slim:~/tmp> gcc -o DW_TAG_GNU_call_site-DW_AT_low_pc.s.tmp
DW_TAG_GNU_call_site-DW_AT_low_pc.s
seli@slim:~/tmp> gdb -q DW_TAG_GNU_call_site-DW_AT_low_pc.s.tmp
Reading symbols from DW_TAG_GNU_call_site-DW_AT_low_pc.s.tmp...
Dwarf Error: Cannot find DIE at 0x24f referenced from DIE at 0x158 [in module
/home/seli/tmp/DW_TAG_GNU_call_site-DW_AT_low_pc.s.tmp]
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D81334/new/
https://reviews.llvm.org/D81334
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