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| author | Sergey Bugaev <bugaevc@gmail.com> | 2023-05-15 11:33:22 +0300 |
|---|---|---|
| committer | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2023-05-16 16:09:00 +0200 |
| commit | e333759f7752593a69a8f9920a247ed3878fafef (patch) | |
| tree | 0c307ea5d660fea298c4069b301863a38c84284f /setjmp | |
| parent | ce96593c882b393461084048533120e9c1e9d328 (diff) | |
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hurd: Fix sc_i386_thread_state layout
The real i386_thread_state Mach structure has an alignment of 8 on
x86_64. However, in struct sigcontext, the compiler was packing sc_gs
(which is the first member of sc_i386_thread_state) into the same 8-byte
slot as sc_error; this resulted in the rest of sc_i386_thread_state
members having wrong offsets relative to each other, and the overall
sc_i386_thread_state layout mismatching that of i386_thread_state.
Fix this by explicitly adding the required padding members, and
statically asserting that this results in the desired alignment.
The same goes for sc_i386_float_state.
Checked on x86_64-gnu.
Signed-off-by: Sergey Bugaev <bugaevc@gmail.com>
Message-Id: <20230515083323.1358039-4-bugaevc@gmail.com>
Diffstat (limited to 'setjmp')
0 files changed, 0 insertions, 0 deletions