| commit | 50899e30abf3cbd71a09ecc03b2e172f6ba5d4f4 | |
| author | Michael Matz <matz@suse.de> | |
| Sun, 8 Mar 2015 23:19:59 +0000 (9 00:19 +0100) | ||
| committer | Michael Matz <matz@suse.de> | |
| Sun, 8 Mar 2015 23:19:59 +0000 (9 00:19 +0100) | ||
| tree | 2451264d2ed2950fd232f5d4d4fed8ffe2f6538e | treesnapshot (tar.gz zip) |
| parent | d73b48840115f0adc97d6a9e6fe2aeb88fcbfbdd | commitdiff |
Fix stack overwrite on structure return
The common code to move a returned structure packed into
registers into memory on the caller side didn't take the
register size into account when allocating local storage,
so sometimes that lead to stack overwrites (e.g. in 73_arm64.c),
on x86_64. This fixes it by generally making gfunc_sret also return
the register size.
The common code to move a returned structure packed into
registers into memory on the caller side didn't take the
register size into account when allocating local storage,
so sometimes that lead to stack overwrites (e.g. in 73_arm64.c),
on x86_64. This fixes it by generally making gfunc_sret also return
the register size.