https://bugs.llvm.org/show_bug.cgi?id=40947
Bug ID: 40947
Summary: LLDB compiled by gcc doesn't evaluate expressions on
32 bit
Product: lldb
Version: 5.0
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P
Component: All Bugs
Assignee: lldb-dev@lists.llvm.org
Reporter: m.akse...@samsung.com
CC: llvm-b...@lists.llvm.org
I'm using LLDB cross-compiled by gcc on ARM. When I'm trying to evaluate a
simple expression (e.g. x+1), debugger gives an error message: "Expression
can't be run, because there is no JIT compiled function".
I think I've found the reason. In function
lldb_private::IRExecutionUnit::GetRunnableInfo there is a cast operator from
void* (32 bit in my case) to lldb::addr_t (64 bit). Pointer-to-integer
conversion is implementation defined as per the C99 standard and gcc performs
signed extension here. Further it compares with unsigned number (uintptr_t) in
IRExecutionUnit::GetRemoteAddressForLocal and address can't be found.
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