https://bugs.llvm.org/show_bug.cgi?id=36277
Bug ID: 36277
Summary: PDB * Linker * module does not contain COFF groups
Product: lld
Version: unspecified
Hardware: PC
OS: Windows NT
Status: NEW
Severity: enhancement
Priority: P
Component: All Bugs
Assignee: unassignedb...@nondot.org
Reporter: stefan.reinal...@molecular-matters.com
CC: llvm-bugs@lists.llvm.org
PDBs produced by MSVC's linker contain a * Linker * compiland that stores COFF
groups as SymTagCoffGroup children of this linker compiland, such as the
following (output produced using DIA2Dump):
CoffGroup : [0x0001:0x00000000] 0x00001000, len = 00003310,
characteristics = 60000020, .text$di
CoffGroup : [0x0002:0x0000030c] 0x0001630C, len = 00000164,
characteristics = 40000040, .CRT$XCU
CoffGroup : [0x000a:0x00000000] 0x00023000, len = 00000104,
characteristics = 40000040, .some_custom_read_only_section
CoffGroup : [0x000c:0x00000000] 0x00025000, len = 00000104,
characteristics = C0000040, .tls
PDBs produced by lld contain the * Linker * compiland but don't store any COFF
groups.
Is this something that could be added to lld?
This is *very* useful information for finding e.g. dynamic initializers,
symbols in thread-local storage, as well as symbols in certain user-defined
sections where you don't know the symbols' names beforehand, but need to be
able to enumerate them.
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