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| author | Michael Jeanson <mjeanson@efficios.com> | 2022-12-01 11:14:42 -0500 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2022-12-02 20:57:09 +1100 |
| commit | ad050d2390fccb22aa3e6f65e11757ce7a5a7ca5 (patch) | |
| tree | 991591f3c759e4aa0c3168fad2e05abdc5ce84d1 /arch/powerpc/lib/code-patching.c | |
| parent | 7cd882df9485988f7d9b3fae04fde4e95a4c7a74 (diff) | |
| download | linux-ad050d2390fccb22aa3e6f65e11757ce7a5a7ca5.tar.gz linux-ad050d2390fccb22aa3e6f65e11757ce7a5a7ca5.tar.bz2 linux-ad050d2390fccb22aa3e6f65e11757ce7a5a7ca5.zip | |
powerpc/ftrace: fix syscall tracing on PPC64_ELF_ABI_V1
In v5.7 the powerpc syscall entry/exit logic was rewritten in C, on
PPC64_ELF_ABI_V1 this resulted in the symbols in the syscall table
changing from their dot prefixed variant to the non-prefixed ones.
Since ftrace prefixes a dot to the syscall names when matching them to
build its syscall event list, this resulted in no syscall events being
available.
Remove the PPC64_ELF_ABI_V1 specific version of
arch_syscall_match_sym_name to have the same behavior across all powerpc
variants.
Fixes: 68b34588e202 ("powerpc/64/sycall: Implement syscall entry/exit logic in C")
Cc: stable@vger.kernel.org # v5.7+
Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
Reviewed-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20221201161442.2127231-1-mjeanson@efficios.com
Diffstat (limited to 'arch/powerpc/lib/code-patching.c')
0 files changed, 0 insertions, 0 deletions