修改内核路径

hc

2024-05-14 bedbef8ad3e75a304af6361af235302bcc61d06b

 kernel/tools/lib/bpf/btf.c
..
..
@@ -614,8 +614,21 @@
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 			if (align <= 0)
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 				return align;
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 			max_align = max(max_align, align);
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+
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+			/* if field offset isn't aligned according to field
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+			 * type's alignment, then struct must be packed
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+			 */
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+			if (btf_member_bitfield_size(t, i) == 0 &&
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+			    (m->offset % (8 * align)) != 0)
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+				return 1;
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 		}
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+		/* if struct/union size isn't a multiple of its alignment,
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+		 * then struct must be packed
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+		 */
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+		if ((t->size % max_align) != 0)
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+			return 1;
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+
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 		return max_align;
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 	}
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 	default: