https://sourceware.org/bugzilla/show_bug.cgi?id=27925
Mark Wielaard <mark at klomp dot org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|--- |FIXED
Status|NEW |RESOLVED
--- Comment #13 from Mark Wielaard <mark at klomp dot org> ---
(In reply to William Cohen from comment #12)
> The patch for the retval handling has been submitted.
Thanks. I added a ChangeLog entry, made some (GNU) code style changes and
committed as:
commit 2e57301be1bbb9c34f8a59122ab500de46eb7acb (HEAD -> master)
Author: William Cohen <[email protected]>
Date: Wed Sep 29 14:56:15 2021 -0400
RISC-V: PR27925 Add support for LP64 and LP64F ABIs return values
The RISC-V Linux kernel is compiled without floating point (the LP64
ABI) and elfutils could not obtain return value locations for
functions in the kernel. This issue was noticed when Systemtap
generated RISC-V kernel modules for scripts that used $return target
variables in function return probes. This patch adds the needed
support to provide return value information for the LP64 and LP64F
ABIs.
Signed-off-by: William Cohen <[email protected]>
> As mentioned in
> comment #9 testing is not trivial. Normal user-space executables are
> compiled with floating-point enabled and those executables work fine without
> the fixes. The LP64 and LP64F ABIs don't have the need start or libraries
> to compile user-space tests. Leaving the testsuite for later consideration.
OK. But even a testcase for the already working "normal" user-space would be
appreciated. And we might be able to create a kernel module as testcase.
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