The comments in File.h say:
// NB this enum is used in the lldb platform gdb-remote packet
// vFile:open: and existing values cannot be modified.
enum OpenOptions {
eOpenOptionRead = (1u << 0), // Open file for reading
eOpenOptionWrite = (1u << 1), // Open file for writing
eOpenOptionAppend =
(1u << 2), // Don't truncate file when opening, append to end of file
And In GDBRemoteCommunicationServerCommon.cpp it says:
uint32_t flags = packet.GetHexMaxU32(false, 0);
if (packet.GetChar() == ',') {
mode_t mode = packet.GetHexMaxU32(false, 0600);
FileSpec path_spec(path);
FileSystem::Instance().Resolve(path_spec);
// Do not close fd.
auto file = FileSystem::Instance().Open(path_spec, flags, mode, false);
But in the GDB documentation it says:
@node Open Flags
@unnumberedsubsubsec Open Flags
@cindex open flags, in file-i/o protocol
All values are given in hexadecimal representation.
@smallexample
O_RDONLY 0x0
O_WRONLY 0x1
O_RDWR 0x2
O_APPEND 0x8
O_CREAT 0x200
O_TRUNC 0x400
O_EXCL 0x800
@end smallexample
Does vFile:Open actually work? Are there any tests that cover it?
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