add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/tools/testing/selftests/bpf/test_verifier.c
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@@ -50,7 +50,7 @@
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 #define MAX_INSNS	BPF_MAXINSNS
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 #define MAX_TEST_INSNS	1000000
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 #define MAX_FIXUPS	8
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-#define MAX_NR_MAPS	20
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+#define MAX_NR_MAPS	21
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 #define MAX_TEST_RUNS	8
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 #define POINTER_VALUE	0xcafe4all
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 #define TEST_DATA_LEN	64
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@@ -87,6 +87,7 @@
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 	int fixup_sk_storage_map[MAX_FIXUPS];
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 	int fixup_map_event_output[MAX_FIXUPS];
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 	int fixup_map_reuseport_array[MAX_FIXUPS];
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+	int fixup_map_ringbuf[MAX_FIXUPS];
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 	const char *errstr;
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 	const char *errstr_unpriv;
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 	uint32_t insn_processed;
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@@ -640,6 +641,7 @@
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 	int *fixup_sk_storage_map = test->fixup_sk_storage_map;
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 	int *fixup_map_event_output = test->fixup_map_event_output;
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 	int *fixup_map_reuseport_array = test->fixup_map_reuseport_array;
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+	int *fixup_map_ringbuf = test->fixup_map_ringbuf;
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 	if (test->fill_helper) {
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 		test->fill_insns = calloc(MAX_TEST_INSNS, sizeof(struct bpf_insn));
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@@ -817,6 +819,14 @@
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 			fixup_map_reuseport_array++;
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 		} while (*fixup_map_reuseport_array);
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 	}
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+	if (*fixup_map_ringbuf) {
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+		map_fds[20] = create_map(BPF_MAP_TYPE_RINGBUF, 0,
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+					   0, 4096);
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+		do {
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+			prog[*fixup_map_ringbuf].imm = map_fds[20];
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+			fixup_map_ringbuf++;
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+		} while (*fixup_map_ringbuf);
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+	}
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 }
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 struct libcap {