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Use aarch64_features to describe register features in target descriptions.

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Replace the sve bool member of aarch64_features with a vq member that
holds the vector quotient.  It is zero if SVE is not present.

Add std::hash<> specialization and operator== so that aarch64_features
can be used as a key with std::unordered_map<>.

Change the various functions that create or lookup aarch64 target
descriptions to accept a const aarch64_features object rather than a
growing number of arguments.

Replace the multi-dimension tdesc_aarch64_list arrays used to cache
target descriptions with unordered_maps indexed by aarch64_feature.
This commit is contained in:
John Baldwin
2022-05-18 13:32:04 -07:00
parent 04dfe7aa52
commit 0ee6b1c511
13 changed files with 89 additions and 58 deletions
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gdbserver/netbsd-aarch64-low.cc
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@@ -96,7 +96,7 @@ void
netbsd_aarch64_target::low_arch_setup ()
{
target_desc *tdesc
= aarch64_create_target_description (0, false, false, false);
= aarch64_create_target_description ({});
static const char *expedite_regs_aarch64[] = { "x29", "sp", "pc", NULL };
init_target_desc (tdesc, expedite_regs_aarch64);