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Co-Authored-By: Andreas Kling <kling@serenityos.org>
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A neat error message is displayed when failing to open a directory!
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This patch adds GUI::Action::create_checkable() helpers that work just
like the existing create() helpers, but the actions become checkable(!)
Clients are no longer required to manage the checked state of their
actions manually, but instead they will be checked/unchecked as needed
by GUI::Action itself before the activation hook is fired.
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This makes it show up in Inspector with all the menus inside it. :^)
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- Print current source location, if available
- Add a breakpoint at a source location
- "sl" command - step to the next line in source
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Previously, drag and drop would only work when dragging between node
items on a DirectoryView. This commit makes it possible to drag files to
the empty area of the DirectoryView and copy files more easily between
windows.
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When opening a path, check if it's the current one before pushing it
twice to the path history.
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Fixes #1853.
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Fixed a crash occurring when initiating a flood fill out of the bitmap rectangle.
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When copying files, the original file permissions are applied to the
copy. However, this was not done with directories. This should do it.
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When a drag operation is accepted, we don't check whether the source
nodes contain the destination directory. This could trigger an unwanted
recursive copy.
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If the selection is empty, the model index will be invalid and the file
system model will return the root directory path by default. This causes
the file manager to jump to the root directory when the currently
selected item on the tree view is deselected.
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Json model wasn't stored after bookmark removal.
Store the model if remove() was successful.
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FileManager can now be started with the --desktop argument. When it's
started in this mode, it will run as a WindowType::Desktop window and
not create any of its regular UI.
The desktop version of the file manager is currently pretty bare-bones
but we can improve it over time and share more code with the regular
file manager windows.
I think this is pretty cool! :^)
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Instead of squirreling away this logic deep in the FileManager app,
we now delegate file opening to GUI::DesktopServices.
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functrace traces the function calls a program makes.
It's like strace, but for userspace.
It works by using Debugging functionality to insert breakpoints
at call&ret instructions.
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POSIX says, "Conforming applications should not assume that the returned
contents of the symbolic link are null-terminated."
If we do include the null terminator into the returning string, Python
believes it to actually be a part of the returned name, and gets unhappy
about that later. This suggests other systems Python runs in don't include
it, so let's do that too.
Also, make our userspace support non-null-terminated realpath().
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Also, this commit does some refactoring to the debugging loop logic.
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Previously, a breakpoint was removed after it was tripped.
After a breakpoint trips, we have to undo the 'int3' patch
from the instruction in order to continue the exceution.
To make a breakpoint persist, we switch to "single step" mode,
which stops the execution after a single instruction, and then we
insert the breakpoint at the previous instruction.
There is also some code that deals with an edge case where there are
breakpoints in two consecutive instructions.
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For some reaason, some magic is required to convince gcc to give us
the implementation for "__cxa_demangle"
Thanks @predmond for finding this simpler form of magic :)
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Also, added AK::String::index_of and fixed a bug in ELF::Loader::symbol_ptr
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The DebugSession class wraps the usage of Ptrace.
It is intended to be used by cli & gui debugger programs.
Also, call objdump for disassemly
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PT_SETTREGS sets the regsiters of the traced thread. It can only be
used when the tracee is stopped.
Also, refactor ptrace.
The implementation was getting long and cluttered the alraedy large
Process.cpp file.
This commit moves the bulk of the implementation to Kernel/Ptrace.cpp,
and factors out peek & poke to separate methods of the Process class.
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This was a missing feature in the PT_TRACEME command.
This feature allows the tracer to interact with the tracee before the
tracee has started executing its program.
It will be useful for automatically inserting a breakpoint at a
debugged program's entry point.
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PT_POKE writes a single word to the tracee's address space.
Some caveats:
- If the user requests to write to an address in a read-only region, we
temporarily change the page's protections to allow it.
- If the user requests to write to a region that's backed by a
SharedInodeVMObject, we replace the vmobject with a PrivateIndoeVMObject.
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Also, start debugging only after execve is done
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PT_PEEK reads a single word from the tracee's address space and returns
it to the tracer.
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Also, start working on the debugger app.
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Delete current file from file system.
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