summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorThomas Petazzoni <thomas.petazzoni@free-electrons.com>2011-12-31 14:38:22 (GMT)
committer Thomas Petazzoni <thomas.petazzoni@free-electrons.com>2012-03-01 19:26:38 (GMT)
commitc5c1064e494a4524622d366ea20c230afc575692 (patch)
treeb1d9ec836143ab30dd9a3f9c3fdadbfe460e7b53
parent91d4336cbc22846e5d6fa3c26d74849721163d33 (diff)
downloadbuildroot-c5c1064e494a4524622d366ea20c230afc575692.tar.gz
buildroot-c5c1064e494a4524622d366ea20c230afc575692.tar.bz2
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>
-rw-r--r--toolchain/toolchain-external/Config.in123
1 files changed, 123 insertions, 0 deletions
diff --git a/toolchain/toolchain-external/Config.in b/toolchain/toolchain-external/Config.in
index 6fb9ef6..d3b591d 100644
--- a/toolchain/toolchain-external/Config.in
+++ b/toolchain/toolchain-external/Config.in
@@ -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"