Since commit 94746890202cf ("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]> --- tools/lib/bpf/libbpf.c | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-) diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c index 219facd0e66e..3a370fa37d8a 100644 --- a/tools/lib/bpf/libbpf.c +++ b/tools/lib/bpf/libbpf.c @@ -11110,9 +11110,7 @@ static const char *arch_specific_syscall_pfx(void) #elif defined(__riscv) return "riscv"; #elif defined(__powerpc__) - return "powerpc"; -#elif defined(__powerpc64__) - return "powerpc64"; + return ""; #else return NULL; #endif @@ -11127,7 +11125,11 @@ int probe_kern_syscall_wrapper(int token_fd) if (!ksys_pfx) return 0; +#if defined(__powerpc__) + snprintf(syscall_name, sizeof(syscall_name), "sys_bpf"); +#else snprintf(syscall_name, sizeof(syscall_name), "__%s_sys_bpf", ksys_pfx); +#endif if (determine_kprobe_perf_type() >= 0) { int pfd; @@ -11272,8 +11274,12 @@ struct bpf_link *bpf_program__attach_ksyscall(const struct bpf_program *prog, * compiler does not know that we have an explicit conditional * as well. */ +#if defined(__powerpc__) + snprintf(func_name, sizeof(func_name), "sys_%s", syscall_name); +#else snprintf(func_name, sizeof(func_name), "__%s_sys_%s", arch_specific_syscall_pfx() ? : "", syscall_name); +#endif } else { snprintf(func_name, sizeof(func_name), "__se_sys_%s", syscall_name); } -- 2.43.5
