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Add a new x86(_64) arch variant "goldmont-without-xsaves"

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Its target arch is goldmont, but without xsaves support.
This ensures efficient execution on a broad range of Intel/AMD CPUs used
in Chromebooks, including those lacking xsaves support.
(e.g. Kaby Lake, Gemini Lake, Alder Lake and AMD Zen series)

Bug: 314243939
Test: Build an image with TARGET_ARCH_VARIANT:=goldmont-without-xsaves
Change-Id: I9963cc3356394815f068fc998a9708bdb30c8266
This commit is contained in:
Satoshi Niwa
2023-12-14 17:33:36 +09:00
parent a53330a525
commit c41f21121c
5 changed files with 52 additions and 19 deletions
Download Patch File Download Diff File Expand all files Collapse all files

19
rust/config/x86_64_device.go
View File

@@ -28,15 +28,16 @@ var (
x86_64LinkFlags = []string{}
x86_64ArchVariantRustFlags = map[string][]string{
"": []string{},
"broadwell": []string{"-C target-cpu=broadwell"},
"goldmont": []string{"-C target-cpu=goldmont"},
"goldmont-plus": []string{"-C target-cpu=goldmont-plus"},
"haswell": []string{"-C target-cpu=haswell"},
"ivybridge": []string{"-C target-cpu=ivybridge"},
"sandybridge": []string{"-C target-cpu=sandybridge"},
"silvermont": []string{"-C target-cpu=silvermont"},
"skylake": []string{"-C target-cpu=skylake"},
"": []string{},
"broadwell": []string{"-C target-cpu=broadwell"},
"goldmont": []string{"-C target-cpu=goldmont"},
"goldmont-plus": []string{"-C target-cpu=goldmont-plus"},
"goldmont-without-xsaves": []string{"-C target-cpu=goldmont", "-C target-feature=-xsaves"},
"haswell": []string{"-C target-cpu=haswell"},
"ivybridge": []string{"-C target-cpu=ivybridge"},
"sandybridge": []string{"-C target-cpu=sandybridge"},
"silvermont": []string{"-C target-cpu=silvermont"},
"skylake": []string{"-C target-cpu=skylake"},
//TODO: Add target-cpu=stoneyridge when rustc supports it.
"stoneyridge": []string{""},
"tremont": []string{"-C target-cpu=tremont"},

21
rust/config/x86_device.go
View File

@@ -26,16 +26,17 @@ var (
x86LinkFlags = []string{}
x86ArchVariantRustFlags = map[string][]string{
"": []string{},
"atom": []string{"-C target-cpu=atom"},
"broadwell": []string{"-C target-cpu=broadwell"},
"goldmont": []string{"-C target-cpu=goldmont"},
"goldmont-plus": []string{"-C target-cpu=goldmont-plus"},
"haswell": []string{"-C target-cpu=haswell"},
"ivybridge": []string{"-C target-cpu=ivybridge"},
"sandybridge": []string{"-C target-cpu=sandybridge"},
"silvermont": []string{"-C target-cpu=silvermont"},
"skylake": []string{"-C target-cpu=skylake"},
"": []string{},
"atom": []string{"-C target-cpu=atom"},
"broadwell": []string{"-C target-cpu=broadwell"},
"goldmont": []string{"-C target-cpu=goldmont"},
"goldmont-plus": []string{"-C target-cpu=goldmont-plus"},
"goldmont-without-xsaves": []string{"-C target-cpu=goldmont", "-C target-feature=-xsaves"},
"haswell": []string{"-C target-cpu=haswell"},
"ivybridge": []string{"-C target-cpu=ivybridge"},
"sandybridge": []string{"-C target-cpu=sandybridge"},
"silvermont": []string{"-C target-cpu=silvermont"},
"skylake": []string{"-C target-cpu=skylake"},
//TODO: Add target-cpu=stoneyridge when rustc supports it.
"stoneyridge": []string{""},
"tremont": []string{"-C target-cpu=tremont"},