Commit c5c1064e authored by Thomas Petazzoni's avatar Thomas Petazzoni
Browse files

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: default avatarThomas Petazzoni <thomas.petazzoni@free-electrons.com>
parent 91d4336c

toolchain/toolchain-external/Config.in

+123 −0
Original line number Diff line number Diff line
@@ -14,8 +14,15 @@ config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_ARM201109 
	  2.13 and gdb 7.2.50, kernel headers 3.0.1. It has support

	  for the following variants:

            - ARMv5TE, little endian, soft-float, glibc

              Select ARM926T, ARM10T, XScale or another ARMv5 core

              Select BR2_SOFT_FLOAT

            - ARMv4T, little endian, soft-float, glibc

              Select ARM720T, ARM920T, ARM922T or another ARMv4 core

              Select BR2_SOFT_FLOAT

            - ARMv7-A, Thumb 2, little endian, soft-float, glibc

              Select Cortex-A8, Cortex-A9 or another ARMv7-A core

              Select BR2_SOFT_FLOAT

              Set BR2_TARGET_OPTIMIZATION to -mthumb



config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_ARM201103

	bool "Sourcery CodeBench ARM 2011.03"
@@ -28,8 +35,15 @@ config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_ARM201103 
	  2.13 and gdb 7.2.50, kernel headers 2.6.38. It has support

	  for the following variants:

            - ARMv5TE, little endian, soft-float, glibc

              Select ARM926T, ARM10T, XScale or another ARMv5 core

              Select BR2_SOFT_FLOAT

            - ARMv4T, little endian, soft-float, glibc

              Select ARM720T, ARM920T, ARM922T or another ARMv4 core

              Select BR2_SOFT_FLOAT

            - ARMv7-A, Thumb 2, little endian, soft-float, glibc

              Select Cortex-A8, Cortex-A9 or another ARMv7-A core

              Select BR2_SOFT_FLOAT

              Set BR2_TARGET_OPTIMIZATION to -mthumb



config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_ARM201009

	bool "Sourcery CodeBench ARM 2010.09"
@@ -42,8 +56,15 @@ config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_ARM201009 
	  2.11 and gdb 7.2.50, kernel headers 2.6.35.2. It has support

	  for the following variants:

            - ARMv5TE, little endian, soft-float, glibc

	      Select ARM926T, ARM10T, XScale or another ARMv5 core

              Select BR2_SOFT_FLOAT

            - ARMv4T, little endian, soft-float, glibc

              Select ARM720T, ARM920T, ARM922T or another ARMv4 core

              Select BR2_SOFT_FLOAT

            - ARMv7-A, Thumb 2, little endian, soft-float, glibc

              Select Cortex-A8, Cortex-A9 or another ARMv7-A core

              Select BR2_SOFT_FLOAT

              Set BR2_TARGET_OPTIMIZATION to -mthumb



config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_ARM2010Q1

	bool "Sourcery CodeBench ARM 2010q1"
@@ -56,8 +77,15 @@ config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_ARM2010Q1 
	  2.11, gdb 7.0.50 and kernel headers 2.6.32. It has support

	  for the following variants:

             - ARMv5T, little endian, soft-float, glibc

               Select ARM926T, ARM10T, XScale or another ARMv5 core

               Select BR2_SOFT_FLOAT

             - ARMv4T, little endian, soft-float, glibc

               Select ARM720T, ARM920T, ARM922T or another ARMv4 core

               Select BR2_SOFT_FLOAT

             - ARMv7-A, Thumb 2, little endian, soft-float, glibc

               Select Cortex-A8, Cortex-A9 or another ARMv7-A core

               Select BR2_SOFT_FLOAT

               Set BR2_TARGET_OPTIMIZATION to -mthumb



config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_ARM2009Q3

	bool "Sourcery CodeBench ARM 2009q3"
@@ -70,8 +98,15 @@ config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_ARM2009Q3 
	  2.10 and gdb 6.8 and kernel headers 2.6.30. It has support

	  for the following variants:

            - ARMv5T, little endian, soft-float, glibc

              Select ARM926T, ARM10T, XScale or another ARMv5 core

              Select BR2_SOFT_FLOAT

            - ARMv4T, little endian, soft-float, glibc

              Select ARM720T, ARM920T, ARM922T or another ARMv4 core

              Select BR2_SOFT_FLOAT

            - ARMv7-A, Thumb 2, little endian, soft-float, glibc

              Select Cortex-A8, Cortex-A9 or another ARMv7-A core

              Select BR2_SOFT_FLOAT

              Set BR2_TARGET_OPTIMIZATION to -mthumb



config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_MIPS201103

	bool "Sourcery CodeBench MIPS 2011.03"
@@ -84,17 +119,43 @@ config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_MIPS201103 
	  2.13, uClibc 0.9.30 and gdb 7.2.50, kernel headers

	  2.6.38. It has support for the following variants:

            - MIPS32 O32 big endian glibc

              Select a MIPS generic core

              Disable BR2_SOFT_FLOAT

            - MIPS32 O32 little endian glibc

              Select a MIPS generic core

              Disable BR2_SOFT_FLOAT

              Set BR2_TARGET_OPTIMIZATION to -EL

            - MIPS32 big endian soft float glibc

              Select a MIPS generic core

              Select BR2_SOFT_FLOAT

            - MIPS32 little endian soft float glibc

              Select a MIPS generic core

              Select BR2_SOFT_FLOAT

              Set BR2_TARGET_OPTIMIZATION to -EL

            - MIPS32 big endian microMIPS glibc

              Select a MIPS generic core

              Disable BR2_SOFT_FLOAT

              Set BR2_TARGET_OPTIMIZATION to -mips16

            - MIPS32 little endian microMIPS glibc

              Select a MIPS generic core

              Disable BR2_SOFT_FLOAT

              Set BR2_TARGET_OPTIMIZATION to -EL -mips16

            - MIPS32 big endian soft float microMIPS glibc

              Select a MIPS generic core

              Select BR2_SOFT_FLOAT

              Set BR2_TARGET_OPTIMIZATION to -mips16

            - MIPS32 little endian soft float microMIPS glibc

              Select a MIPS generic core

              Select BR2_SOFT_FLOAT

              Set BR2_TARGET_OPTIMIZATION to -EL -mips16

            - MIPS32 big endian uclibc

              Not usable in Buildroot yet.

            - MIPS32 little endian uclibc

              Not usable in Buildroot yet.

            - MIPS32 big endian soft float uclibc

              Not usable in Buildroot yet.

            - MIPS32 little endian soft float uclibc

              Not usable in Buildroot yet.



config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_MIPS44

	bool "Sourcery CodeBench MIPS 4.4"
@@ -107,17 +168,43 @@ config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_MIPS44 
	  2.11, uClibc 0.9.30 and gdb 7.0, kernel headers 2.6.32. It

	  has support for the following variants:

            - MIPS32 O32 big endian glibc

              Select a MIPS generic core

              Disable BR2_SOFT_FLOAT

            - MIPS32 O32 little endian glibc

              Select a MIPS generic core

              Disable BR2_SOFT_FLOAT

              Set BR2_TARGET_OPTIMIZATION to -EL

            - MIPS32 big endian soft float glibc

              Select a MIPS generic core

              Select BR2_SOFT_FLOAT

            - MIPS32 little endian soft float glibc

              Select a MIPS generic core

              Select BR2_SOFT_FLOAT

              Set BR2_TARGET_OPTIMIZATION to -EL

            - MIPS32 big endian microMIPS glibc

              Select a MIPS generic core

              Disable BR2_SOFT_FLOAT

              Set BR2_TARGET_OPTIMIZATION to -mips16

            - MIPS32 little endian microMIPS glibc

              Select a MIPS generic core

              Disable BR2_SOFT_FLOAT

              Set BR2_TARGET_OPTIMIZATION to -EL -mips16

            - MIPS32 big endian soft float microMIPS glibc

              Select a MIPS generic core

              Select BR2_SOFT_FLOAT

              Set BR2_TARGET_OPTIMIZATION to -mips16

            - MIPS32 little endian soft float microMIPS glibc

              Select a MIPS generic core

              Select BR2_SOFT_FLOAT

              Set BR2_TARGET_OPTIMIZATION to -EL -mips16

            - MIPS32 big endian uclibc

              Not usable in Buildroot yet.

            - MIPS32 little endian uclibc

              Not usable in Buildroot yet.

            - MIPS32 big endian soft float uclibc

              Not usable in Buildroot yet.

            - MIPS32 little endian soft float uclibc

              Not usable in Buildroot yet.



config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_POWERPC201103

	bool "Sourcery CodeBench PowerPC 2011.03"
@@ -130,12 +217,21 @@ config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_POWERPC201103 
	  glibc 2.13, gdb 7.2.50 and kernel headers 2.6.38. It has

	  support for the following variants:

            - 603 glibc, 32 bits

	      Select a generic PowerPC core

	      Disable BR2_SOFT_FLOAT

            - 603 soft float glibc, 32 bits

	      Select a generic PowerPC core

	      Enable BR2_SOFT_FLOAT

            - e600 altivec glibc, 32 bits

              Set BR2_TARGET_OPTIMIZATION to -te600

            - e500v1 glibc, 32 bits

              Set BR2_TARGET_OPTIMIZATION to -te500v1

            - e500v2 glibc, 32 bits

              Set BR2_TARGET_OPTIMIZATION to -te500v2

            - e500mc glibc, 32 bits

              Set BR2_TARGET_OPTIMIZATION to -te500mc

            - 970 glibc hard-float, 64 bits

              Set BR2_TARGET_OPTIMIZATION to -m64



config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_POWERPC201009

	bool "Sourcery CodeBench PowerPC 2010.09"
@@ -148,12 +244,21 @@ config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_POWERPC201009 
	  glibc 2.11, gdb 7.2.50 and kernel headers 2.6.35.2. It has

	  support for the following variants:

            - 603 glibc, 32 bits

	      Select a generic PowerPC core

	      Disable BR2_SOFT_FLOAT

            - 603 soft float glibc, 32 bits

	      Select a generic PowerPC core

	      Enable BR2_SOFT_FLOAT

            - e600 altivec glibc, 32 bits

              Set BR2_TARGET_OPTIMIZATION to -te600

            - e500v1 glibc, 32 bits

              Set BR2_TARGET_OPTIMIZATION to -te500v1

            - e500v2 glibc, 32 bits

              Set BR2_TARGET_OPTIMIZATION to -te500v2

            - e500mc glibc, 32 bits

              Set BR2_TARGET_OPTIMIZATION to -te500mc

            - 970 glibc hard-float, 64 bits

              Set BR2_TARGET_OPTIMIZATION to -m64



config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_SH201103

	bool "Sourcery CodeBench SH 2011.03"
@@ -166,9 +271,13 @@ config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_SH201103 
	  glibc 2.13, uClibc 0.9.30, gdb 7.2.50 and kernel headers

	  2.6.38. It has support for the following variants:

            - SH4A, glibc, little endian

              Default.

            - SH4A, glibc, big endian

              Add -mb to BR2_TARGET_OPTIMIZATION

            - SH4A, uClibc, little endian

              Not usable in Buildroot yet.

            - SH4A, uClibc, big endian

              Not usable in Buildroot yet.



config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_SH201009

	bool "Sourcery CodeBench SH 2010.09"
@@ -181,9 +290,13 @@ config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_SH201009 
	  glibc 2.11, uClibc 0.9.30, gdb 7.2.50 and kernel headers

	  2.6.35.2. It has support for the following variants:

            - SH4A, glibc, little endian

              Default.

            - SH4A, glibc, big endian

              Add -mb to BR2_TARGET_OPTIMIZATION

            - SH4A, uClibc, little endian

              Not usable in Buildroot yet.

            - SH4A, uClibc, big endian

              Not usable in Buildroot yet.



config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_SH2A_201103

	bool "Sourcery CodeBench SH 2011.03"
@@ -230,9 +343,14 @@ config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_X86_201109 
	  binutils 2.21.53, glibc 2.13, gdb 7.2.50 and kernel headers

	  3.0.1. It has support for the following variants:

	    - Intel Pentium 4, glibc, 32 bits

              Default, nothing special to do.

            - Intel Atom, glibc, 32 bits

              Select an Atom core

            - Intel Xeon, glibc, 64 bits

              Set BR2_TARGET_OPTIMIZATION to -m64

            - Intel Core 2, glibc, 64 bits

              Select a Core 2 core

              Set BR2_TARGET_OPTIMIZATION to -m64



config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_X86_201009

	bool "Sourcery CodeBench x86/x86_64 2010.09"
@@ -245,9 +363,14 @@ config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_X86_201009 
	  binutils 2.20, glibc 2.11, gdb 7.2.50 and kernel headers

	  2.6.35.2. It has support for the following variants:

	    - Intel Pentium 4, glibc, 32 bits

              Default, nothing special to do.

            - Intel Atom, glibc, 32 bits

              Select an Atom core

            - Intel Xeon, glibc, 64 bits

              Set BR2_TARGET_OPTIMIZATION to -m64

            - Intel Core 2, glibc, 64 bits

              Select a Core 2 core

              Set BR2_TARGET_OPTIMIZATION to -m64



config BR2_TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_2011R1

	bool "Blackfin.uclinux.org 2011R1-RC4"