| Commit message (Collapse) | Author | Age | Files | Lines |
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the elf_prstatus structure is used in core dumps, and the timeval
structures in it are longs matching the elf class, *not* the kernel
"old timeval" for the arch. this means using timeval here for x32 was
always wrong, despite kernel uapi headers and glibc also exposing it
this way, and of course it's wrong for any arch with 64-bit time_t.
rather than just changing the type on affected archs, use a tagless
struct containing long tv_sec and tv_usec members in place of the
timevals. this intentionally breaks use of them as timevals (e.g.
assignment, passing address, etc.) on 64-bit archs as well so that any
usage unsafe for 32-bit archs is caught even in software that only
gets tested on 64-bit archs. from what I could gather, there is not
any software using these members anyway. the only reason they need to
be fixed to begin with is that the only members which are commonly
used, the saved registers, follow the time members and have the wrong
offset if the time members are sized incorrectly.
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placing the opening brace on the same line as the struct keyword/tag
is the style I prefer and seems to be the prevailing practice in more
recent additions.
these changes were generated by the command:
find include/ arch/*/bits -name '*.h' \
-exec sed -i '/^struct [^;{]*$/{N;s/\n/ /;}' {} +
and subsequently checked by hand to ensure that the regex did not pick
up any false positives.
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this was problematic because several archs don't define __WORDSIZE. we
could add it, but I would rather phase this macro out in the long
term. in our version of the headers, UINTPTR_MAX is available here, so
just use it instead.
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these structures are purely for use by trace/debug tools and tools
working with core files. the definition of fpregset_t, which was
previously here, has been removed because it was wrong; fpregset_t
should be the type used in mcontext_t, not the type used in
ptrace/core stuff.
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patches by sh4rm4, presumably needed to make gdb or some similar junk
happy...
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