EABI: Specify Tag_ABI_VFP_args (dotnet#98698)

hwoodiwiss · Feb 20, 2024 · 6864ddf · 6864ddf
1 parent 5c57621
commit 6864ddf
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diff --git a/src/coreclr/tools/aot/ILCompiler.Compiler/Compiler/ObjectWriter/Eabi/EabiNative.cs b/src/coreclr/tools/aot/ILCompiler.Compiler/Compiler/ObjectWriter/Eabi/EabiNative.cs
@@ -31,6 +31,7 @@ internal static class EabiNative
         public const uint Tag_ABI_align_needed = 24;
         public const uint Tag_ABI_align_preserved = 25;
         public const uint Tag_ABI_enum_size = 26;
+        public const uint Tag_ABI_VFP_args = 28;
         public const uint Tag_ABI_optimization_goals = 30;
         public const uint Tag_CPU_unaligned_access = 34;
         public const uint Tag_ABI_FP_16bit_format = 38;

diff --git a/src/coreclr/tools/aot/ILCompiler.Compiler/Compiler/ObjectWriter/ElfObjectWriter.cs b/src/coreclr/tools/aot/ILCompiler.Compiler/Compiler/ObjectWriter/ElfObjectWriter.cs
@@ -465,6 +465,7 @@ private protected override void EmitSectionsAndLayout()
                 attributesBuilder.WriteAttribute(Tag_ABI_FP_number_model, 3); // IEEE 754
                 attributesBuilder.WriteAttribute(Tag_ABI_align_needed, 1); // 8-byte
                 attributesBuilder.WriteAttribute(Tag_ABI_align_preserved, 1); // 8-byte
+                attributesBuilder.WriteAttribute(Tag_ABI_VFP_args, 1); // FP parameters passes in VFP registers
                 attributesBuilder.WriteAttribute(Tag_CPU_unaligned_access, 0); // None
                 attributesBuilder.EndSection();
             }