| Message ID | Z1bqCZU6+ZNEUs0u@tucnak |
|---|---|
| State | New |
| Headers | show |
| Series | docs: Clarify -fsanitize=hwaddress target support [PR117960] | expand |
On Mon, 9 Dec 2024, Jakub Jelinek wrote: > Hi! > > Since GCC 13 -fsanitize=hwaddress is not supported just on AArch64, but also > on x86_64 (but only with -mlam=u48 or -mlam=u57). > > Ok for trunk? OK. > 2024-12-09 Jakub Jelinek <jakub@redhat.com> > > PR sanitize/117960 > * doc/invoke.texi (fsanitize=hwaddress): Clarify on which targets > it is supported. > > --- gcc/doc/invoke.texi.jj 2024-12-09 11:37:50.282218643 +0100 > +++ gcc/doc/invoke.texi 2024-12-09 13:45:32.431473662 +0100 > @@ -17768,8 +17768,10 @@ the available options are shown at start > @url{https://github.com/google/sanitizers/wiki/AddressSanitizerFlags#run-time-flags} > for a list of supported options. > The option cannot be combined with @option{-fsanitize=thread} or > -@option{-fsanitize=hwaddress}. Note that the only target > -@option{-fsanitize=hwaddress} is currently supported on is AArch64. > +@option{-fsanitize=hwaddress}. Note that the only targets > +@option{-fsanitize=hwaddress} is currently supported on are x86-64 > +(only with @code{-mlam=u48} or @code{-mlam=u57} options) and AArch64, > +in both cases only in ABIs with 64-bit pointers. > > To get more accurate stack traces, it is possible to use options such as > @option{-O0}, @option{-O1}, or @option{-Og} (which, for instance, prevent > > Jakub > >
--- gcc/doc/invoke.texi.jj 2024-12-09 11:37:50.282218643 +0100 +++ gcc/doc/invoke.texi 2024-12-09 13:45:32.431473662 +0100 @@ -17768,8 +17768,10 @@ the available options are shown at start @url{https://github.com/google/sanitizers/wiki/AddressSanitizerFlags#run-time-flags} for a list of supported options. The option cannot be combined with @option{-fsanitize=thread} or -@option{-fsanitize=hwaddress}. Note that the only target -@option{-fsanitize=hwaddress} is currently supported on is AArch64. +@option{-fsanitize=hwaddress}. Note that the only targets +@option{-fsanitize=hwaddress} is currently supported on are x86-64 +(only with @code{-mlam=u48} or @code{-mlam=u57} options) and AArch64, +in both cases only in ABIs with 64-bit pointers. To get more accurate stack traces, it is possible to use options such as @option{-O0}, @option{-O1}, or @option{-Og} (which, for instance, prevent