https://llvm.org/bugs/show_bug.cgi?id=23659
Bug ID: 23659
Summary: LLDB cannot evaluate expressions on linux if inferior
is stopped in a syscall
Product: lldb
Version: unspecified
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P
Component: All Bugs
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
Classification: Unclassified
The inferior receives SIGILL when it tries to allocate memory.
I'm not sure how SIGILL is related, but the underlying cause is that when we do
a PTRACE_CONT to allocate the memory, the system call is restarted, whereas
what we would like to do is postpone the syscall until the expression is
evaluated. This is especially a problem if the inferior is in a blocking
syscall, which may take long (or forever, e.g. if the inferior is deadlocked)
to return.
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