search for: __interpose

+kledzik at apple.com The dynamic runtime is using dylib interposition (google for "__DATA,__interpose). If I'm understanding correctly (Nick, can you please confirm this?) this allows to interpose the function regardless of the two-level namespace. The support for dynamic runtime in ASan is almost there. But the new interposition method has revealed some issues with the allocator which were cor...

On Tue, Dec 04, 2012 at 09:46:09AM -0800, Alexander Potapenko wrote: > +kledzik at apple.com > The dynamic runtime is using dylib interposition (google for > "__DATA,__interpose). > If I'm understanding correctly (Nick, can you please confirm this?) > this allows to interpose the function regardless of the two-level > namespace. > The support for dynamic runtime in ASan is almost there. But the new > interposition method has revealed some issues with the...

...and Mac OS. On Tue, Dec 4, 2012 at 10:17 AM, Jack Howarth <howarth at bromo.med.uc.edu> wrote: > On Tue, Dec 04, 2012 at 09:46:09AM -0800, Alexander Potapenko wrote: >> +kledzik at apple.com >> The dynamic runtime is using dylib interposition (google for >> "__DATA,__interpose). >> If I'm understanding correctly (Nick, can you please confirm this?) >> this allows to interpose the function regardless of the two-level >> namespace. >> The support for dynamic runtime in ASan is almost there. But the new >> interposition method has revealed...

..., Dec 4, 2012 at 10:17 AM, Jack Howarth <howarth at bromo.med.uc.edu> wrote: > > On Tue, Dec 04, 2012 at 09:46:09AM -0800, Alexander Potapenko wrote: > >> +kledzik at apple.com > >> The dynamic runtime is using dylib interposition (google for > >> "__DATA,__interpose). > >> If I'm understanding correctly (Nick, can you please confirm this?) > >> this allows to interpose the function regardless of the two-level > >> namespace. > >> The support for dynamic runtime in ASan is almost there. But the new > >> interposi...

On 30 November 2012 13:32, Alexander Potapenko <glider at google.com> wrote: > No, we are not going to use mach_inject. This isn't portable and may > be even harder to set up than mach_override. > The new ASan runtime will use the dylib interposition and will in fact > require DYLD_INSERT_LIBRARIES to work. However ASan already handles it > correctly itself: if the

No, we are not going to use mach_inject. This isn't portable and may be even harder to set up than mach_override. The new ASan runtime will use the dylib interposition and will in fact require DYLD_INSERT_LIBRARIES to work. However ASan already handles it correctly itself: if the corresponding env var is missing the app is just re-execed. Dylib interposition is supported by Apple and should