The attached patch adds support for debugging 32-bit processes when running a 64-bit lldb on an x86_64 Linux system.
Making this work required two basic changes:
1) Getting lldb to report that it could debug 32-bit processes
2) Changing an assumption about how ptrace works when debugging cross-platform
For the first change, I took a conservative approach and only enabled this for x86_64 Linux platforms. It may be that the change I made in Host.cpp could be extended to other 64-bit Linux platforms, but I'm not familiar enough with the other platforms to know for sure.
For the second change, the Linux ProcessMonitor class was assuming that ptrace(PTRACE_[PEEK|POKE]DATA...) would read/write a "word" based on the child process word size. However, the ptrace documentation says that the "word" size read or written is "determined by the OS variant." I verified experimentally that when ptracing a 32-bit child from a 64-bit parent a 64-bit word is read or written.
llvm-svn: 163398
a new POSIX platform. It also contains fixes for 64bit FreeBSD.
The patch is based on changes by Mark Peek <mp@FreeBSD.org> and
"K. Macy" <kmacy@freebsd.org> in their github repo located at
https://github.com/fbsd/lldb.
llvm-svn: 147609
Joel Dillon that fixed 64 debugging for Linux.
I also added a patch to fix up the ProcessLinux::DoLaunch() to be up to date.
I wasn't able to verify it compiles, but it should b really close.
llvm-svn: 143772
solve the build break due to the lack of this method.
It also propose a solution to the API changes in RegisterContext.
I upgraded also the the python version in the makefile. My linux
installation has python2.7 and AFAIK also the latest ubuntu
has this version of python so maybe is worth upgrading.
Patch by Marco Minutoli <mminutoli@gmail.com>
[Note: I had to hand merge in the diffs since patch thinks it is a corrupt patch.]
llvm-svn: 131313
This patch upgrades the Linux process plugin to handle a larger range of signal
events. For example, we can detect when the inferior has "crashed" and why,
interrupt a running process, deliver an arbitrary signal, and so on.
llvm-svn: 128547
This patch removes a potential race condition between a process monitor thread
and its parent waiting to interrogate the success/failure of the launch.
llvm-svn: 123803
This component is still at an early stage, but allows for simple
breakpoint/step-over operations and basic process control.
The makefiles are set up to build the plugin under Linux only.
llvm-svn: 109318
Greg Clayton