search for: map_writable

This is a proposed patch to enhance FileSystem.h to add functionality (getting and setting permission bits and mapping an unmapping files). This implementation follows the N3365 proposal regarding permission bits. This functionality is needed for my next patch which will implement llvm/include/Support/FileOutputBuffer.h which is needed by lld. -------------- next part -------------- A

On Fri, May 18, 2012 at 3:07 PM, Michael Spencer <bigcheesegs at gmail.com> wrote: > >> +  error_code ec = sys::fs::status(filePathTwine, stat); > > stat is undefined if ec isn't success. ec will be success even in the case of > file_not_found. Actually I was wrong. The Windows and UNIX implementation disagree on this point. I'm going to change it to match

...StringRef path){ > SmallString<128> path_null(path); > @@ -496,6 +532,97 @@ > return error_code::success(); > } > > +error_code map_file_pages(const Twine &path, off_t file_offset, size_t size, > + bool map_writable, void *&result) { > + SmallString<128> path_storage; > + StringRef name = path.toNullTerminatedStringRef(path_storage); > + int oflags = map_writable ? O_RDWR : O_RDONLY; > + int fd = ::open(name.begin(), oflags); > + if ( fd == -1 ) > + return error_code(errno,...

I now have an implementation of FileOutputBuffer (OutputBuffer was already taken). The patch supports the functionality listed below and I've tested that it works for lld. -------------- next part -------------- A non-text attachment was scrubbed... Name: FileOutputBuffer.patch Type: application/octet-stream Size: 25308 bytes Desc: not available URL:

This patch set adds XSM security labels to useful debugging output locations, and fixes some assumptions that all interrupts behaved like GSI interrupts (which had useful non-dynamic IDs). It also cleans up the policy build process and adds an example of how to use the user field in the security context. Debug output: [PATCH 01/10] xsm: Add security labels to event-channel dump [PATCH 02/10] xsm:

The KVM introspection subsystem provides a facility for applications running on the host or in a separate VM, to control the execution of other VM-s (pause, resume, shutdown), query the state of the vCPUs (GPRs, MSRs etc.), alter the page access bits in the shadow page tables (only for the hardware backed ones, eg. Intel's EPT) and receive notifications when events of interest have taken place

The KVM introspection subsystem provides a facility for applications running on the host or in a separate VM, to control the execution of other VM-s (pause, resume, shutdown), query the state of the vCPUs (GPRs, MSRs etc.), alter the page access bits in the shadow page tables (only for the hardware backed ones, eg. Intel's EPT) and receive notifications when events of interest have taken place

The KVM introspection subsystem provides a facility for applications running on the host or in a separate VM, to control the execution of other VMs (pause, resume, shutdown), query the state of the vCPUs (GPRs, MSRs etc.), alter the page access bits in the shadow page tables (only for the hardware backed ones, eg. Intel's EPT) and receive notifications when events of interest have taken place

The KVM introspection subsystem provides a facility for applications running on the host or in a separate VM, to control the execution of other VMs (pause, resume, shutdown), query the state of the vCPUs (GPRs, MSRs etc.), alter the page access bits in the shadow page tables (only for the hardware backed ones, eg. Intel's EPT) and receive notifications when events of interest have taken place