Fix test_bpf_syscall_macro selftest on powerpc #8010
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added 3 commits
November 4, 2024 11:49
Since commit 7e92e01 ("powerpc: Provide syscall wrapper"), powerpc selects ARCH_HAS_SYSCALL_WRAPPER so let's use the generic implementation of PT_REGS_SYSCALL_REGS(). Also, allow overriding PT_REGS_PARM1{_CORE}_SYSCALL for powerpc as powerpc needs orig_gpr3, similar to s390 and arm64. Signed-off-by: Saket Kumar Bhaskar <[email protected]>
Since commit 9474689 ("powerpc: Don't add __powerpc_ prefix to syscall entry points") drops _powerpc prefix to syscall entry points, even though powerpc now supports syscall wrapper, so /proc/kallsyms have symbols for syscall entry without powerpc prefix(sys_*). For this reason, arch specific prefix for syscall functions in powerpc is dropped. Signed-off-by: Saket Kumar Bhaskar <[email protected]>
SYS_PREFIX was missing for a powerpc, which made a kprobe test to sys_prctl fail. Add missing SYS_PREFIX for powerpc. Fixes: 7e92e01 ("powerpc: Provide syscall wrapper") Fixes: 9474689 ("powerpc: Don't add __powerpc_ prefix to syscall entry points") Signed-off-by: Saket Kumar Bhaskar <[email protected]>
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Pull request for series with
subject: Fix test_bpf_syscall_macro selftest on powerpc
version: 1
url: https://patchwork.kernel.org/project/netdevbpf/list/?series=905876