[Buildroot] [PATCH v2 1/5] target: add symbols for i386/x86_64 cpu features

Samuel Martin s.martin49 at gmail.com
Sat Jun 2 22:09:43 UTC 2012


Selecting the target architecture variant automatically selects the
appropriated set of features.

Signed-off-by: Samuel Martin <s.martin49 at gmail.com>

diff --git a/target/Config.in.arch b/target/Config.in.arch
index 25ff750..9908b58 100644
--- a/target/Config.in.arch
+++ b/target/Config.in.arch
@@ -242,7 +242,7 @@ choice
 	default BR2_mips_1 if BR2_mipsel
 	help
 	  Specific CPU variant to use
-	
+
 	  64bit cabable: 3, 4, 64, 64r2
 	  non-64bit capable: 1, 2, 32, 32r2
 
@@ -325,6 +325,31 @@ endchoice
 # gcc builds libstdc++ differently depending on the
 # host tuplet given to it, so let people choose
 #
+
+# i386/x86_64 cpu features
+config BR2_CPU_HAS_MMX
+	bool
+config BR2_CPU_HAS_SSE
+	bool
+config BR2_CPU_HAS_SSE2
+	bool
+config BR2_CPU_HAS_SSE3
+	bool
+config BR2_CPU_HAS_SSSE3
+	bool
+config BR2_CPU_HAS_SSE41
+	bool
+config BR2_CPU_HAS_SSE42
+	bool
+config BR2_CPU_HAS_SSE4
+	bool
+config BR2_CPU_HAS_SSE4A
+	bool
+config BR2_CPU_HAS_3DNOW
+	bool
+config BR2_CPU_HAS_ABM
+	bool
+
 choice
 	prompt "Target Architecture Variant"
 	depends on BR2_i386
@@ -344,46 +369,106 @@ config BR2_x86_pentiumpro
 	bool "pentium pro"
 config BR2_x86_pentium_mmx
 	bool "pentium MMX"
+	select BR2_CPU_HAS_MMX
 config BR2_x86_pentium_m
 	bool "pentium mobile"
 config BR2_x86_pentium2
 	bool "pentium2"
+	select BR2_CPU_HAS_MMX
 config BR2_x86_pentium3
 	bool "pentium3"
+	select BR2_CPU_HAS_MMX
+	select BR2_CPU_HAS_SSE
 config BR2_x86_pentium4
 	bool "pentium4"
+	select BR2_CPU_HAS_MMX
+	select BR2_CPU_HAS_SSE
+	select BR2_CPU_HAS_SSE2
 config BR2_x86_prescott
 	bool "prescott"
+	select BR2_CPU_HAS_MMX
+	select BR2_CPU_HAS_SSE
+	select BR2_CPU_HAS_SSE2
+	select BR2_CPU_HAS_SSE3
 config BR2_x86_nocona
 	bool "nocona"
+	select BR2_CPU_HAS_MMX
+	select BR2_CPU_HAS_SSE
+	select BR2_CPU_HAS_SSE2
+	select BR2_CPU_HAS_SSE3
 config BR2_x86_core2
 	bool "core2"
+	select BR2_CPU_HAS_MMX
+	select BR2_CPU_HAS_SSE
+	select BR2_CPU_HAS_SSE2
+	select BR2_CPU_HAS_SSE3
+	select BR2_CPU_HAS_SSSE3
 config BR2_x86_atom
 	bool "atom"
+	select BR2_CPU_HAS_MMX
+	select BR2_CPU_HAS_SSE
+	select BR2_CPU_HAS_SSE2
+	select BR2_CPU_HAS_SSE3
+	select BR2_CPU_HAS_SSSE3
 config BR2_x86_k6
 	bool "k6"
+	select BR2_CPU_HAS_MMX
 config BR2_x86_k6_2
 	bool "k6-2"
+	select BR2_CPU_HAS_MMX
+	select BR2_CPU_HAS_3DNOW
 config BR2_x86_athlon
 	bool "athlon"
+	select BR2_CPU_HAS_MMX
+	select BR2_CPU_HAS_3DNOW
 config BR2_x86_athlon_4
 	bool "athlon-4"
+	select BR2_CPU_HAS_MMX
+	select BR2_CPU_HAS_3DNOW
+	select BR2_CPU_HAS_SSE
 config BR2_x86_opteron
 	bool "opteron"
+	select BR2_CPU_HAS_MMX
+	select BR2_CPU_HAS_3DNOW
+	select BR2_CPU_HAS_SSE
+	select BR2_CPU_HAS_SSE2
 config BR2_x86_opteron_sse3
 	bool "opteron w/ SSE3"
+	select BR2_CPU_HAS_MMX
+	select BR2_CPU_HAS_3DNOW
+	select BR2_CPU_HAS_SSE
+	select BR2_CPU_HAS_SSE2
+	select BR2_CPU_HAS_SSE3
 config BR2_x86_barcelona
 	bool "barcelona"
+	select BR2_CPU_HAS_MMX
+	select BR2_CPU_HAS_3DNOW
+	select BR2_CPU_HAS_SSE
+	select BR2_CPU_HAS_SSE2
+	select BR2_CPU_HAS_SSE3
+	select BR2_CPU_HAS_SSE4A
+	select BR2_CPU_HAS_ABM
 config BR2_x86_geode
 	bool "geode"
+	# Don't include MMX support because there several variant of geode
+	# processor, some with MMX support, some without.
+	# See: http://en.wikipedia.org/wiki/Geode_%28processor%29
+	select BR2_CPU_HAS_3DNOW
 config BR2_x86_c3
 	bool "Via/Cyrix C3 (Samuel/Ezra cores)"
+	select BR2_CPU_HAS_MMX
+	select BR2_CPU_HAS_3DNOW
 config BR2_x86_c32
 	bool "Via C3-2 (Nehemiah cores)"
+	select BR2_CPU_HAS_MMX
+	select BR2_CPU_HAS_SSE
 config BR2_x86_winchip_c6
 	bool "IDT Winchip C6"
+	select BR2_CPU_HAS_MMX
 config BR2_x86_winchip2
 	bool "IDT Winchip 2"
+	select BR2_CPU_HAS_MMX
+	select BR2_CPU_HAS_3DNOW
 endchoice
 
 choice
@@ -397,16 +482,46 @@ config BR2_x86_64_generic
 	bool "generic"
 config BR2_x86_64_barcelona
 	bool "barcelona"
+	select BR2_CPU_HAS_MMX
+	select BR2_CPU_HAS_3DNOW
+	select BR2_CPU_HAS_SSE
+	select BR2_CPU_HAS_SSE2
+	select BR2_CPU_HAS_SSE3
+	select BR2_CPU_HAS_SSE4A
+	select BR2_CPU_HAS_ABM
 config BR2_x86_64_opteron_sse3
 	bool "opteron w/ sse3"
+	select BR2_CPU_HAS_MMX
+	select BR2_CPU_HAS_3DNOW
+	select BR2_CPU_HAS_SSE
+	select BR2_CPU_HAS_SSE2
+	select BR2_CPU_HAS_SSE3
 config BR2_x86_64_opteron
 	bool "opteron"
+	select BR2_CPU_HAS_MMX
+	select BR2_CPU_HAS_3DNOW
+	select BR2_CPU_HAS_SSE
+	select BR2_CPU_HAS_SSE2
 config BR2_x86_64_nocona
 	bool "nocona"
+	select BR2_CPU_HAS_MMX
+	select BR2_CPU_HAS_SSE
+	select BR2_CPU_HAS_SSE2
+	select BR2_CPU_HAS_SSE3
 config BR2_x86_64_core2
 	bool "core2"
+	select BR2_CPU_HAS_MMX
+	select BR2_CPU_HAS_SSE
+	select BR2_CPU_HAS_SSE2
+	select BR2_CPU_HAS_SSE3
+	select BR2_CPU_HAS_SSSE3
 config BR2_x86_64_atom
 	bool "atom"
+	select BR2_CPU_HAS_MMX
+	select BR2_CPU_HAS_SSE
+	select BR2_CPU_HAS_SSE2
+	select BR2_CPU_HAS_SSE3
+	select BR2_CPU_HAS_SSSE3
 endchoice
 
 choice
-- 
1.7.10.3




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