* [Bug translator/31496] New: support DW_OP_bra (conditional branches) in dwarf location lists
@ 2024-03-15 20:04 fche at redhat dot com
2024-04-23 18:17 ` [Bug translator/31496] " amerey at redhat dot com
0 siblings, 1 reply; 2+ messages in thread
From: fche at redhat dot com @ 2024-03-15 20:04 UTC (permalink / raw)
To: systemtap
https://sourceware.org/bugzilla/show_bug.cgi?id=31496
Bug ID: 31496
Summary: support DW_OP_bra (conditional branches) in dwarf
location lists
Product: systemtap
Version: unspecified
Status: NEW
Severity: normal
Priority: P2
Component: translator
Assignee: systemtap at sourceware dot org
Reporter: fche at redhat dot com
Target Milestone: ---
stap should support location lists such as:
<8><1257ae4>: Abbrev Number: 15 (DW_TAG_call_site_parameter)
<1257ae5> DW_AT_location : 1 byte block: 54 (DW_OP_reg4 (rsi))
<1257ae7> DW_AT_call_value : 22 byte block: 9 ff 30 7d 0 8 20 24 30 29
28 1 0 16 13 b 60 fb 1a 23 c0 1b (DW_OP_const1s: -1; DW_OP_lit0; DW_OP_breg13
(r13): 0; DW_OP_const1u: 32; DW_OP_shl; DW_OP_lit0; DW_OP_eq; DW_OP_bra: 1;
DW_OP_swap; DW_OP_drop; DW_OP_const2s: -1184; DW_OP_and; DW_OP_plus_uconst:
3520)
(found in the fedora 38 6.4.15 kernel)
00449 case DW_OP_bra:
00450 // ??? Could copy the stack, recurse, and place both
00451 // traces in arms of a ternary_expression. No point
00452 // in doing that if this is never used, however.
00453 DIE ("conditional branches not supported");
00454 break;
https://issues.redhat.com/browse/RHEL-13009
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* [Bug translator/31496] support DW_OP_bra (conditional branches) in dwarf location lists
2024-03-15 20:04 [Bug translator/31496] New: support DW_OP_bra (conditional branches) in dwarf location lists fche at redhat dot com
@ 2024-04-23 18:17 ` amerey at redhat dot com
0 siblings, 0 replies; 2+ messages in thread
From: amerey at redhat dot com @ 2024-04-23 18:17 UTC (permalink / raw)
To: systemtap
https://sourceware.org/bugzilla/show_bug.cgi?id=31496
Aaron Merey <amerey at redhat dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |FIXED
CC| |amerey at redhat dot com
--- Comment #1 from Aaron Merey <amerey at redhat dot com> ---
Support for DW_OP_bra with positive operand added commit
22e146b57ecf8a4d637d99d4558ae89c9a3c2617.
I'll close this bug for now since support for DW_OP_bra with negative operand
isn't needed yet.
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