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authorLinus Torvalds <[email protected]>2025-03-30 19:43:03 +0000
committerLinus Torvalds <[email protected]>2025-03-30 19:43:03 +0000
commitfa593d0f969dcfa41d390822fdf1a0ab48cd882c (patch)
treef4b926a8ada7b6c38d852d3bf5d3d2dfabd3ff78 /tools/testing/selftests/bpf/prog_tests/align.c
parentMerge tag 'mailbox-v6.15' of git://git.kernel.org/pub/scm/linux/kernel/git/ja... (diff)
parentMerge branch 'bpf-fix-oob-read-and-add-tests-for-load-acquire-store-release' (diff)
downloadkernel-fa593d0f969dcfa41d390822fdf1a0ab48cd882c.tar.gz
kernel-fa593d0f969dcfa41d390822fdf1a0ab48cd882c.zip
Merge tag 'bpf-next-6.15' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
Pull bpf updates from Alexei Starovoitov: "For this merge window we're splitting BPF pull request into three for higher visibility: main changes, res_spin_lock, try_alloc_pages. These are the main BPF changes: - Add DFA-based live registers analysis to improve verification of programs with loops (Eduard Zingerman) - Introduce load_acquire and store_release BPF instructions and add x86, arm64 JIT support (Peilin Ye) - Fix loop detection logic in the verifier (Eduard Zingerman) - Drop unnecesary lock in bpf_map_inc_not_zero() (Eric Dumazet) - Add kfunc for populating cpumask bits (Emil Tsalapatis) - Convert various shell based tests to selftests/bpf/test_progs format (Bastien Curutchet) - Allow passing referenced kptrs into struct_ops callbacks (Amery Hung) - Add a flag to LSM bpf hook to facilitate bpf program signing (Blaise Boscaccy) - Track arena arguments in kfuncs (Ihor Solodrai) - Add copy_remote_vm_str() helper for reading strings from remote VM and bpf_copy_from_user_task_str() kfunc (Jordan Rome) - Add support for timed may_goto instruction (Kumar Kartikeya Dwivedi) - Allow bpf_get_netns_cookie() int cgroup_skb programs (Mahe Tardy) - Reduce bpf_cgrp_storage_busy false positives when accessing cgroup local storage (Martin KaFai Lau) - Introduce bpf_dynptr_copy() kfunc (Mykyta Yatsenko) - Allow retrieving BTF data with BTF token (Mykyta Yatsenko) - Add BPF kfuncs to set and get xattrs with 'security.bpf.' prefix (Song Liu) - Reject attaching programs to noreturn functions (Yafang Shao) - Introduce pre-order traversal of cgroup bpf programs (Yonghong Song)" * tag 'bpf-next-6.15' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: (186 commits) selftests/bpf: Add selftests for load-acquire/store-release when register number is invalid bpf: Fix out-of-bounds read in check_atomic_load/store() libbpf: Add namespace for errstr making it libbpf_errstr bpf: Add struct_ops context information to struct bpf_prog_aux selftests/bpf: Sanitize pointer prior fclose() selftests/bpf: Migrate test_xdp_vlan.sh into test_progs selftests/bpf: test_xdp_vlan: Rename BPF sections bpf: clarify a misleading verifier error message selftests/bpf: Add selftest for attaching fexit to __noreturn functions bpf: Reject attaching fexit/fmod_ret to __noreturn functions bpf: Only fails the busy counter check in bpf_cgrp_storage_get if it creates storage bpf: Make perf_event_read_output accessible in all program types. bpftool: Using the right format specifiers bpftool: Add -Wformat-signedness flag to detect format errors selftests/bpf: Test freplace from user namespace libbpf: Pass BPF token from find_prog_btf_id to BPF_BTF_GET_FD_BY_ID bpf: Return prog btf_id without capable check bpf: BPF token support for BPF_BTF_GET_FD_BY_ID bpf, x86: Fix objtool warning for timed may_goto bpf: Check map->record at the beginning of check_and_free_fields() ...
Diffstat (limited to 'tools/testing/selftests/bpf/prog_tests/align.c')
-rw-r--r--tools/testing/selftests/bpf/prog_tests/align.c11
1 files changed, 10 insertions, 1 deletions
diff --git a/tools/testing/selftests/bpf/prog_tests/align.c b/tools/testing/selftests/bpf/prog_tests/align.c
index 4ebd0da898f5..1d53a8561ee2 100644
--- a/tools/testing/selftests/bpf/prog_tests/align.c
+++ b/tools/testing/selftests/bpf/prog_tests/align.c
@@ -610,9 +610,11 @@ static int do_test_single(struct bpf_align_test *test)
.log_size = sizeof(bpf_vlog),
.log_level = 2,
);
+ const char *main_pass_start = "0: R1=ctx() R10=fp0";
const char *line_ptr;
int cur_line = -1;
int prog_len, i;
+ char *start;
int fd_prog;
int ret;
@@ -632,7 +634,13 @@ static int do_test_single(struct bpf_align_test *test)
ret = 0;
/* We make a local copy so that we can strtok() it */
strncpy(bpf_vlog_copy, bpf_vlog, sizeof(bpf_vlog_copy));
- line_ptr = strtok(bpf_vlog_copy, "\n");
+ start = strstr(bpf_vlog_copy, main_pass_start);
+ if (!start) {
+ ret = 1;
+ printf("Can't find initial line '%s'\n", main_pass_start);
+ goto out;
+ }
+ line_ptr = strtok(start, "\n");
for (i = 0; i < MAX_MATCHES; i++) {
struct bpf_reg_match m = test->matches[i];
const char *p;
@@ -682,6 +690,7 @@ static int do_test_single(struct bpf_align_test *test)
break;
}
}
+out:
if (fd_prog >= 0)
close(fd_prog);
}