external-toolchain: details on selecting the multilib variants
Each multilib variant need to be selected using a special combination of flags, requiring specific choices of the Buildroot options. This commit documents those configuration choices to make it easier to use the various multilib variants. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
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Thomas Petazzoni
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@ -14,8 +14,15 @@ config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_ARM201109
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2.13 and gdb 7.2.50, kernel headers 3.0.1. It has support
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for the following variants:
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- ARMv5TE, little endian, soft-float, glibc
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Select ARM926T, ARM10T, XScale or another ARMv5 core
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Select BR2_SOFT_FLOAT
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- ARMv4T, little endian, soft-float, glibc
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Select ARM720T, ARM920T, ARM922T or another ARMv4 core
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Select BR2_SOFT_FLOAT
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- ARMv7-A, Thumb 2, little endian, soft-float, glibc
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Select Cortex-A8, Cortex-A9 or another ARMv7-A core
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Select BR2_SOFT_FLOAT
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Set BR2_TARGET_OPTIMIZATION to -mthumb
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config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_ARM201103
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bool "Sourcery CodeBench ARM 2011.03"
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@ -28,8 +35,15 @@ config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_ARM201103
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2.13 and gdb 7.2.50, kernel headers 2.6.38. It has support
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for the following variants:
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- ARMv5TE, little endian, soft-float, glibc
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Select ARM926T, ARM10T, XScale or another ARMv5 core
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Select BR2_SOFT_FLOAT
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- ARMv4T, little endian, soft-float, glibc
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Select ARM720T, ARM920T, ARM922T or another ARMv4 core
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Select BR2_SOFT_FLOAT
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- ARMv7-A, Thumb 2, little endian, soft-float, glibc
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Select Cortex-A8, Cortex-A9 or another ARMv7-A core
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Select BR2_SOFT_FLOAT
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Set BR2_TARGET_OPTIMIZATION to -mthumb
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config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_ARM201009
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bool "Sourcery CodeBench ARM 2010.09"
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@ -42,8 +56,15 @@ config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_ARM201009
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2.11 and gdb 7.2.50, kernel headers 2.6.35.2. It has support
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for the following variants:
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- ARMv5TE, little endian, soft-float, glibc
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Select ARM926T, ARM10T, XScale or another ARMv5 core
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Select BR2_SOFT_FLOAT
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- ARMv4T, little endian, soft-float, glibc
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Select ARM720T, ARM920T, ARM922T or another ARMv4 core
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Select BR2_SOFT_FLOAT
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- ARMv7-A, Thumb 2, little endian, soft-float, glibc
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Select Cortex-A8, Cortex-A9 or another ARMv7-A core
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Select BR2_SOFT_FLOAT
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Set BR2_TARGET_OPTIMIZATION to -mthumb
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config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_ARM2010Q1
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bool "Sourcery CodeBench ARM 2010q1"
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@ -56,8 +77,15 @@ config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_ARM2010Q1
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2.11, gdb 7.0.50 and kernel headers 2.6.32. It has support
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for the following variants:
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- ARMv5T, little endian, soft-float, glibc
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Select ARM926T, ARM10T, XScale or another ARMv5 core
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Select BR2_SOFT_FLOAT
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- ARMv4T, little endian, soft-float, glibc
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Select ARM720T, ARM920T, ARM922T or another ARMv4 core
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Select BR2_SOFT_FLOAT
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- ARMv7-A, Thumb 2, little endian, soft-float, glibc
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Select Cortex-A8, Cortex-A9 or another ARMv7-A core
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Select BR2_SOFT_FLOAT
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Set BR2_TARGET_OPTIMIZATION to -mthumb
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config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_ARM2009Q3
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bool "Sourcery CodeBench ARM 2009q3"
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@ -70,8 +98,15 @@ config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_ARM2009Q3
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2.10 and gdb 6.8 and kernel headers 2.6.30. It has support
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for the following variants:
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- ARMv5T, little endian, soft-float, glibc
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Select ARM926T, ARM10T, XScale or another ARMv5 core
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Select BR2_SOFT_FLOAT
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- ARMv4T, little endian, soft-float, glibc
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Select ARM720T, ARM920T, ARM922T or another ARMv4 core
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Select BR2_SOFT_FLOAT
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- ARMv7-A, Thumb 2, little endian, soft-float, glibc
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Select Cortex-A8, Cortex-A9 or another ARMv7-A core
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Select BR2_SOFT_FLOAT
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Set BR2_TARGET_OPTIMIZATION to -mthumb
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config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_MIPS201103
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bool "Sourcery CodeBench MIPS 2011.03"
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@ -84,17 +119,43 @@ config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_MIPS201103
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2.13, uClibc 0.9.30 and gdb 7.2.50, kernel headers
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2.6.38. It has support for the following variants:
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- MIPS32 O32 big endian glibc
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Select a MIPS generic core
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Disable BR2_SOFT_FLOAT
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- MIPS32 O32 little endian glibc
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Select a MIPS generic core
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Disable BR2_SOFT_FLOAT
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Set BR2_TARGET_OPTIMIZATION to -EL
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- MIPS32 big endian soft float glibc
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Select a MIPS generic core
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Select BR2_SOFT_FLOAT
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- MIPS32 little endian soft float glibc
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Select a MIPS generic core
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Select BR2_SOFT_FLOAT
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Set BR2_TARGET_OPTIMIZATION to -EL
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- MIPS32 big endian microMIPS glibc
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Select a MIPS generic core
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Disable BR2_SOFT_FLOAT
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Set BR2_TARGET_OPTIMIZATION to -mips16
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- MIPS32 little endian microMIPS glibc
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Select a MIPS generic core
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Disable BR2_SOFT_FLOAT
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Set BR2_TARGET_OPTIMIZATION to -EL -mips16
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- MIPS32 big endian soft float microMIPS glibc
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Select a MIPS generic core
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Select BR2_SOFT_FLOAT
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Set BR2_TARGET_OPTIMIZATION to -mips16
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- MIPS32 little endian soft float microMIPS glibc
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Select a MIPS generic core
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Select BR2_SOFT_FLOAT
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Set BR2_TARGET_OPTIMIZATION to -EL -mips16
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- MIPS32 big endian uclibc
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Not usable in Buildroot yet.
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- MIPS32 little endian uclibc
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Not usable in Buildroot yet.
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- MIPS32 big endian soft float uclibc
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Not usable in Buildroot yet.
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- MIPS32 little endian soft float uclibc
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Not usable in Buildroot yet.
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config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_MIPS44
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bool "Sourcery CodeBench MIPS 4.4"
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@ -107,17 +168,43 @@ config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_MIPS44
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2.11, uClibc 0.9.30 and gdb 7.0, kernel headers 2.6.32. It
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has support for the following variants:
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- MIPS32 O32 big endian glibc
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Select a MIPS generic core
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Disable BR2_SOFT_FLOAT
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- MIPS32 O32 little endian glibc
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Select a MIPS generic core
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Disable BR2_SOFT_FLOAT
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Set BR2_TARGET_OPTIMIZATION to -EL
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- MIPS32 big endian soft float glibc
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Select a MIPS generic core
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Select BR2_SOFT_FLOAT
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- MIPS32 little endian soft float glibc
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Select a MIPS generic core
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Select BR2_SOFT_FLOAT
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Set BR2_TARGET_OPTIMIZATION to -EL
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- MIPS32 big endian microMIPS glibc
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Select a MIPS generic core
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Disable BR2_SOFT_FLOAT
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Set BR2_TARGET_OPTIMIZATION to -mips16
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- MIPS32 little endian microMIPS glibc
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Select a MIPS generic core
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Disable BR2_SOFT_FLOAT
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Set BR2_TARGET_OPTIMIZATION to -EL -mips16
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- MIPS32 big endian soft float microMIPS glibc
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Select a MIPS generic core
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Select BR2_SOFT_FLOAT
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Set BR2_TARGET_OPTIMIZATION to -mips16
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- MIPS32 little endian soft float microMIPS glibc
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Select a MIPS generic core
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Select BR2_SOFT_FLOAT
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Set BR2_TARGET_OPTIMIZATION to -EL -mips16
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- MIPS32 big endian uclibc
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Not usable in Buildroot yet.
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- MIPS32 little endian uclibc
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Not usable in Buildroot yet.
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- MIPS32 big endian soft float uclibc
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Not usable in Buildroot yet.
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- MIPS32 little endian soft float uclibc
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Not usable in Buildroot yet.
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config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_POWERPC201103
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bool "Sourcery CodeBench PowerPC 2011.03"
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@ -130,12 +217,21 @@ config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_POWERPC201103
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glibc 2.13, gdb 7.2.50 and kernel headers 2.6.38. It has
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support for the following variants:
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- 603 glibc, 32 bits
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Select a generic PowerPC core
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Disable BR2_SOFT_FLOAT
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- 603 soft float glibc, 32 bits
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Select a generic PowerPC core
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Enable BR2_SOFT_FLOAT
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- e600 altivec glibc, 32 bits
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Set BR2_TARGET_OPTIMIZATION to -te600
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- e500v1 glibc, 32 bits
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Set BR2_TARGET_OPTIMIZATION to -te500v1
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- e500v2 glibc, 32 bits
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Set BR2_TARGET_OPTIMIZATION to -te500v2
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- e500mc glibc, 32 bits
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Set BR2_TARGET_OPTIMIZATION to -te500mc
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- 970 glibc hard-float, 64 bits
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Set BR2_TARGET_OPTIMIZATION to -m64
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config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_POWERPC201009
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bool "Sourcery CodeBench PowerPC 2010.09"
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@ -148,12 +244,21 @@ config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_POWERPC201009
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glibc 2.11, gdb 7.2.50 and kernel headers 2.6.35.2. It has
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support for the following variants:
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- 603 glibc, 32 bits
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Select a generic PowerPC core
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Disable BR2_SOFT_FLOAT
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- 603 soft float glibc, 32 bits
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Select a generic PowerPC core
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Enable BR2_SOFT_FLOAT
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- e600 altivec glibc, 32 bits
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Set BR2_TARGET_OPTIMIZATION to -te600
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- e500v1 glibc, 32 bits
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Set BR2_TARGET_OPTIMIZATION to -te500v1
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- e500v2 glibc, 32 bits
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Set BR2_TARGET_OPTIMIZATION to -te500v2
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- e500mc glibc, 32 bits
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Set BR2_TARGET_OPTIMIZATION to -te500mc
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- 970 glibc hard-float, 64 bits
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Set BR2_TARGET_OPTIMIZATION to -m64
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config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_SH201103
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bool "Sourcery CodeBench SH 2011.03"
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@ -166,9 +271,13 @@ config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_SH201103
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glibc 2.13, uClibc 0.9.30, gdb 7.2.50 and kernel headers
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2.6.38. It has support for the following variants:
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- SH4A, glibc, little endian
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Default.
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- SH4A, glibc, big endian
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Add -mb to BR2_TARGET_OPTIMIZATION
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- SH4A, uClibc, little endian
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Not usable in Buildroot yet.
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- SH4A, uClibc, big endian
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Not usable in Buildroot yet.
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config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_SH201009
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bool "Sourcery CodeBench SH 2010.09"
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@ -181,9 +290,13 @@ config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_SH201009
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glibc 2.11, uClibc 0.9.30, gdb 7.2.50 and kernel headers
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2.6.35.2. It has support for the following variants:
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- SH4A, glibc, little endian
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Default.
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- SH4A, glibc, big endian
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Add -mb to BR2_TARGET_OPTIMIZATION
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- SH4A, uClibc, little endian
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Not usable in Buildroot yet.
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- SH4A, uClibc, big endian
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Not usable in Buildroot yet.
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config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_SH2A_201103
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bool "Sourcery CodeBench SH 2011.03"
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@ -230,9 +343,14 @@ config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_X86_201109
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binutils 2.21.53, glibc 2.13, gdb 7.2.50 and kernel headers
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3.0.1. It has support for the following variants:
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- Intel Pentium 4, glibc, 32 bits
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Default, nothing special to do.
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- Intel Atom, glibc, 32 bits
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Select an Atom core
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- Intel Xeon, glibc, 64 bits
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Set BR2_TARGET_OPTIMIZATION to -m64
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- Intel Core 2, glibc, 64 bits
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Select a Core 2 core
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Set BR2_TARGET_OPTIMIZATION to -m64
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config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_X86_201009
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bool "Sourcery CodeBench x86/x86_64 2010.09"
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@ -245,9 +363,14 @@ config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_X86_201009
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binutils 2.20, glibc 2.11, gdb 7.2.50 and kernel headers
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2.6.35.2. It has support for the following variants:
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- Intel Pentium 4, glibc, 32 bits
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Default, nothing special to do.
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- Intel Atom, glibc, 32 bits
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Select an Atom core
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- Intel Xeon, glibc, 64 bits
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Set BR2_TARGET_OPTIMIZATION to -m64
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- Intel Core 2, glibc, 64 bits
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Select a Core 2 core
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Set BR2_TARGET_OPTIMIZATION to -m64
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config BR2_TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_2011R1
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bool "Blackfin.uclinux.org 2011R1-RC4"
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