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recompile with -fPIC >> kernel/bpf/btf.c:8758:(.text+0x184bc): dangerous relocation: unsupported relocation >> aarch64-linux-gnu-ld: kernel/bpf/btf.c:8758:(.text+0x184c4): undefined reference to `btf_kobj' vim +8758 kernel/bpf/btf.c 18688de203b47e5 Kumar Kartikeya Dwivedi 2022-01-14 8737 ef28548058e47e9 Alan Maguire 2026-09-01 8738 #if IS_ENABLED(CONFIG_SYSFS) ef28548058e47e9 Alan Maguire 2026-09-01 8739 struct bin_attribute *sysfs_btf_add(const char *name, void *data, size_t data_size) ef28548058e47e9 Alan Maguire 2026-09-01 8740 { ef28548058e47e9 Alan Maguire 2026-09-01 8741 struct bin_attribute *attr; ef28548058e47e9 Alan Maguire 2026-09-01 8742 int err; ef28548058e47e9 Alan Maguire 2026-09-01 8743 ef28548058e47e9 Alan Maguire 2026-09-01 8744 attr = kzalloc_obj(*attr); ef28548058e47e9 Alan Maguire 2026-09-01 8745 if (!attr) ef28548058e47e9 Alan Maguire 2026-09-01 8746 return ERR_PTR(-ENOMEM); ef28548058e47e9 Alan Maguire 2026-09-01 8747 ef28548058e47e9 Alan Maguire 2026-09-01 8748 sysfs_bin_attr_init(attr); ef28548058e47e9 Alan Maguire 2026-09-01 8749 attr->attr.mode = 0444; ef28548058e47e9 Alan Maguire 2026-09-01 8750 attr->size = data_size; ef28548058e47e9 Alan Maguire 2026-09-01 8751 attr->private = data; ef28548058e47e9 Alan Maguire 2026-09-01 8752 attr->read = sysfs_bin_attr_simple_read; ef28548058e47e9 Alan Maguire 2026-09-01 8753 attr->attr.name = kstrdup(name, GFP_KERNEL); ef28548058e47e9 Alan Maguire 2026-09-01 8754 if (!attr->attr.name) { ef28548058e47e9 Alan Maguire 2026-09-01 8755 err = -ENOMEM; ef28548058e47e9 Alan Maguire 2026-09-01 8756 goto err_free; ef28548058e47e9 Alan Maguire 2026-09-01 8757 } ef28548058e47e9 Alan Maguire 2026-09-01 @8758 err = sysfs_create_bin_file(btf_kobj, attr); ef28548058e47e9 Alan Maguire 2026-09-01 8759 if (err) { ef28548058e47e9 Alan Maguire 2026-09-01 8760 pr_warn("failed to register [%s] BTF in sysfs: %d\n", name, err); ef28548058e47e9 Alan Maguire 2026-09-01 8761 goto err_free; ef28548058e47e9 Alan Maguire 2026-09-01 8762 } ef28548058e47e9 Alan Maguire 2026-09-01 8763 return attr; ef28548058e47e9 Alan Maguire 2026-09-01 8764 ef28548058e47e9 Alan Maguire 2026-09-01 8765 err_free: ef28548058e47e9 Alan Maguire 2026-09-01 8766 kfree(attr->attr.name); ef28548058e47e9 Alan Maguire 2026-09-01 8767 kfree(attr); ef28548058e47e9 Alan Maguire 2026-09-01 8768 return ERR_PTR(err); ef28548058e47e9 Alan Maguire 2026-09-01 8769 } ef28548058e47e9 Alan Maguire 2026-09-01 8770 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki