Pull request for branch pre-built-packages

GIT PULL New Thomas Petazzoni 3 participants 8 messages Dec 29, 2012 – Jan 7, 2013

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Thomas Petazzoni

author

2012-12-29 16:14 UTC #0 lore raw

Hello,

Recently, we have had a number of users having issues with external toolchains because those are built for 32 bits Linux, and most developers know use 64 bits build machines. The error message such users get so far is very cryptic "Cannot execute cross-compiler".

So, this set of patches adds a small infrastructure in the form of a Kconfig option and a check in dependencies.sh. The Kconfig option allows packages to tell whether they need 32 bits compatibility libraries, and the check in dependencies.sh verifies that those libraries are installed (simply by checking the presence of the 32 bits dynamic loader).

Then, all pre-built external toolchains as well as the sam-ba tool are modified to use this mechanism.

As a preliminary patch, all the pre-built external toolchains are changed to be visible only if the host architecture is x86 or x86-64.

Thanks,

Thomas

The following changes since commit 4848386446b937d4d0d9d3e9489932ca3fcb1003:

libffi: fix mips build failures (2012-12-28 16:55:09 +0100)

are available in the git repository at:

git://git.free-electrons.com/users/thomas-petazzoni/buildroot.git pre-built-packages

for you to fetch changes up to fbccee70c941bfc2e0c8d0c62cf78e726ae35170:

sam-ba: select BR2_HOSTARCH_NEEDS_IA32_LIBS (2012-12-29 17:06:41 +0100)

----------------------------------------------------------------
Thomas Petazzoni (4):
toolchain-external: add dependency on BR2_HOST_ARCH Infrastructure to warn the user about missing 32 bits libraries
toolchain-external: use BR2_HOSTARCH_NEEDS_IA32_LIBS where needed
sam-ba: select BR2_HOSTARCH_NEEDS_IA32_LIBS

 Config.in                              |    6 ++++
 package/sam-ba/Config.in.host          |    1 +
 support/dependencies/dependencies.sh   |   11 +++++++
 toolchain/toolchain-external/Config.in |   54 ++++++++++++++++++++++++++++++++
 4 files changed, 72 insertions(+)

Thanks,

Signature · 1 line

Thomas Petazzoni

Thomas Petazzoni

author

2012-12-29 16:14 UTC #1 lore raw

PATCH 1/4 toolchain-external: add dependency on BR2_HOST_ARCH

The pre-build external toolchains are all built for x86, so they are only available if the build machine is a x86 or x86-64 machine.

Signed-off-by Thomas Petazzoni <[email protected]>

---
 toolchain/toolchain-external/Config.in |   27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)

toolchain/toolchain-external/Config.in +27 -0

index eeb40a3..c14736d 100644
@@ -7,6 +7,7 @@ config BR2_TOOLCHAIN_EXTERNAL_LINARO_2012_12
 	bool "Linaro 2012.12"
 	depends on BR2_arm
 	depends on BR2_cortex_a5 || BR2_cortex_a8 || BR2_cortex_a9 || BR2_cortex_a15
+	depends on BR2_HOSTARCH = "x86_64" || BR2_HOSTARCH = "x86"
 	select BR2_TOOLCHAIN_EXTERNAL_GLIBC
 	select BR2_TOOLCHAIN_HAS_NATIVE_RPC
 	select BR2_INSTALL_LIBSTDCPP

@@ -24,6 +25,7 @@ config BR2_TOOLCHAIN_EXTERNAL_LINARO_2012_11
 	bool "Linaro 2012.11"
 	depends on BR2_arm
 	depends on BR2_cortex_a5 || BR2_cortex_a8 || BR2_cortex_a9 || BR2_cortex_a15
+	depends on BR2_HOSTARCH = "x86_64" || BR2_HOSTARCH = "x86"
 	select BR2_TOOLCHAIN_EXTERNAL_GLIBC
 	select BR2_TOOLCHAIN_HAS_NATIVE_RPC
 	select BR2_INSTALL_LIBSTDCPP

@@ -41,6 +43,7 @@ config BR2_TOOLCHAIN_EXTERNAL_LINARO_2012_10
 	bool "Linaro 2012.10"
 	depends on BR2_arm
 	depends on BR2_cortex_a5 || BR2_cortex_a8 || BR2_cortex_a9 || BR2_cortex_a15
+	depends on BR2_HOSTARCH = "x86_64" || BR2_HOSTARCH = "x86"
 	select BR2_TOOLCHAIN_EXTERNAL_GLIBC
 	select BR2_TOOLCHAIN_HAS_NATIVE_RPC
 	select BR2_INSTALL_LIBSTDCPP

@@ -61,6 +64,7 @@ comment "Linaro toolchains available for Cortex-A{5,8,9,15}"
 config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_ARM201203
 	bool "Sourcery CodeBench ARM 2012.03"
 	depends on BR2_arm
+	depends on BR2_HOSTARCH = "x86_64" || BR2_HOSTARCH = "x86"
 	select BR2_TOOLCHAIN_EXTERNAL_GLIBC
 	select BR2_TOOLCHAIN_HAS_NATIVE_RPC
 	select BR2_INSTALL_LIBSTDCPP

@@ -83,6 +87,7 @@ config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_ARM201203
 config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_ARM201109
 	bool "Sourcery CodeBench ARM 2011.09"
 	depends on BR2_arm
+	depends on BR2_HOSTARCH = "x86_64" || BR2_HOSTARCH = "x86"
 	select BR2_TOOLCHAIN_EXTERNAL_GLIBC
 	select BR2_TOOLCHAIN_HAS_NATIVE_RPC
 	select BR2_INSTALL_LIBSTDCPP

@@ -105,6 +110,7 @@ config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_ARM201109
 config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_MIPS201209
 	bool "Sourcery CodeBench MIPS 2012.09"
 	depends on BR2_mips || BR2_mipsel
+	depends on BR2_HOSTARCH = "x86_64" || BR2_HOSTARCH = "x86"
 	select BR2_TOOLCHAIN_EXTERNAL_GLIBC
 	select BR2_TOOLCHAIN_HAS_NATIVE_RPC
 	select BR2_INSTALL_LIBSTDCPP

@@ -173,6 +179,7 @@ config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_MIPS201209
 config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_MIPS201203
 	bool "Sourcery CodeBench MIPS 2012.03"
 	depends on BR2_mips || BR2_mipsel
+	depends on BR2_HOSTARCH = "x86_64" || BR2_HOSTARCH = "x86"
 	select BR2_TOOLCHAIN_EXTERNAL_GLIBC
 	select BR2_TOOLCHAIN_HAS_NATIVE_RPC
 	select BR2_INSTALL_LIBSTDCPP

@@ -241,6 +248,7 @@ config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_MIPS201203
 config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_ARM201103
 	bool "Sourcery CodeBench ARM 2011.03"
 	depends on BR2_arm
+	depends on BR2_HOSTARCH = "x86_64" || BR2_HOSTARCH = "x86"
 	select BR2_TOOLCHAIN_EXTERNAL_GLIBC
 	select BR2_TOOLCHAIN_HAS_NATIVE_RPC
 	select BR2_INSTALL_LIBSTDCPP

@@ -263,6 +271,7 @@ config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_ARM201103
 config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_MIPS201109
 	bool "Sourcery CodeBench MIPS 2011.09"
 	depends on BR2_mips || BR2_mipsel
+	depends on BR2_HOSTARCH = "x86_64" || BR2_HOSTARCH = "x86"
 	select BR2_TOOLCHAIN_EXTERNAL_GLIBC
 	select BR2_TOOLCHAIN_HAS_NATIVE_RPC
 	select BR2_INSTALL_LIBSTDCPP

@@ -331,6 +340,7 @@ config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_MIPS201109
 config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_POWERPC201103
 	bool "Sourcery CodeBench PowerPC 2011.03"
 	depends on BR2_powerpc
+	depends on BR2_HOSTARCH = "x86_64" || BR2_HOSTARCH = "x86"
 	select BR2_TOOLCHAIN_EXTERNAL_GLIBC
 	select BR2_TOOLCHAIN_HAS_NATIVE_RPC
 	select BR2_INSTALL_LIBSTDCPP

@@ -359,6 +369,7 @@ config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_POWERPC201103
 config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_POWERPC201009
 	bool "Sourcery CodeBench PowerPC 2010.09"
 	depends on BR2_powerpc
+	depends on BR2_HOSTARCH = "x86_64" || BR2_HOSTARCH = "x86"
 	select BR2_TOOLCHAIN_EXTERNAL_GLIBC
 	select BR2_TOOLCHAIN_HAS_NATIVE_RPC
 	select BR2_INSTALL_LIBSTDCPP

@@ -387,6 +398,7 @@ config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_POWERPC201009
 config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_SH201209
 	bool "Sourcery CodeBench SH 2012.09"
 	depends on BR2_sh4a || BR2_sh4aeb
+	depends on BR2_HOSTARCH = "x86_64" || BR2_HOSTARCH = "x86"
 	select BR2_TOOLCHAIN_EXTERNAL_GLIBC
 	select BR2_TOOLCHAIN_HAS_NATIVE_RPC
 	select BR2_INSTALL_LIBSTDCPP

@@ -407,6 +419,7 @@ config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_SH201209
 config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_SH201203
 	bool "Sourcery CodeBench SH 2012.03"
 	depends on BR2_sh4a || BR2_sh4aeb
+	depends on BR2_HOSTARCH = "x86_64" || BR2_HOSTARCH = "x86"
 	select BR2_TOOLCHAIN_EXTERNAL_GLIBC
 	select BR2_INSTALL_LIBSTDCPP
 	help

@@ -426,6 +439,7 @@ config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_SH201203
 config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_SH201103
 	bool "Sourcery CodeBench SH 2011.03"
 	depends on BR2_sh4a || BR2_sh4aeb
+	depends on BR2_HOSTARCH = "x86_64" || BR2_HOSTARCH = "x86"
 	select BR2_TOOLCHAIN_EXTERNAL_GLIBC
 	select BR2_TOOLCHAIN_HAS_NATIVE_RPC
 	select BR2_INSTALL_LIBSTDCPP

@@ -446,6 +460,7 @@ config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_SH201103
 config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_SH2A_201103
 	bool "Sourcery CodeBench SH 2011.03"
 	depends on BR2_sh2a
+	depends on BR2_HOSTARCH = "x86_64" || BR2_HOSTARCH = "x86"
 	select BR2_TOOLCHAIN_EXTERNAL_UCLIBC
 	select BR2_LARGEFILE
 	select BR2_TOOLCHAIN_HAS_NATIVE_RPC

@@ -463,6 +478,7 @@ config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_SH2A_201103
 config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_SH2A_201009
 	bool "Sourcery CodeBench SH 2010.09"
 	depends on BR2_sh2a
+	depends on BR2_HOSTARCH = "x86_64" || BR2_HOSTARCH = "x86"
 	select BR2_TOOLCHAIN_EXTERNAL_UCLIBC
 	select BR2_LARGEFILE
 	select BR2_TOOLCHAIN_HAS_NATIVE_RPC

@@ -480,6 +496,7 @@ config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_SH2A_201009
 config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_X86_201209
 	bool "Sourcery CodeBench x86/x86_64 2012.09"
 	depends on BR2_i386 || BR2_x86_64
+	depends on BR2_HOSTARCH = "x86_64" || BR2_HOSTARCH = "x86"
 	select BR2_TOOLCHAIN_EXTERNAL_GLIBC
 	select BR2_TOOLCHAIN_HAS_NATIVE_RPC
 	select BR2_INSTALL_LIBSTDCPP

@@ -502,6 +519,7 @@ config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_X86_201209
 config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_X86_201203
 	bool "Sourcery CodeBench x86/x86_64 2012.03"
 	depends on BR2_i386 || BR2_x86_64
+	depends on BR2_HOSTARCH = "x86_64" || BR2_HOSTARCH = "x86"
 	select BR2_TOOLCHAIN_EXTERNAL_GLIBC
 	select BR2_INSTALL_LIBSTDCPP
 	help

@@ -523,6 +541,7 @@ config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_X86_201203
 config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_X86_201109
 	bool "Sourcery CodeBench x86/x86_64 2011.09"
 	depends on BR2_i386 || BR2_x86_64
+	depends on BR2_HOSTARCH = "x86_64" || BR2_HOSTARCH = "x86"
 	select BR2_TOOLCHAIN_EXTERNAL_GLIBC
 	select BR2_TOOLCHAIN_HAS_NATIVE_RPC
 	select BR2_INSTALL_LIBSTDCPP

@@ -545,6 +564,7 @@ config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_X86_201109
 config BR2_TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_2012R1
 	bool "Blackfin.uclinux.org 2012R1-BETA1"
 	depends on BR2_bfin
+	depends on BR2_HOSTARCH = "x86_64" || BR2_HOSTARCH = "x86"
 	select BR2_TOOLCHAIN_EXTERNAL_UCLIBC
 	select BR2_INSTALL_LIBSTDCPP
 	select BR2_LARGEFILE

@@ -560,6 +580,7 @@ config BR2_TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_2012R1
 config BR2_TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_2011R1
 	bool "Blackfin.uclinux.org 2011R1-RC4"
 	depends on BR2_bfin
+	depends on BR2_HOSTARCH = "x86_64" || BR2_HOSTARCH = "x86"
 	select BR2_TOOLCHAIN_EXTERNAL_UCLIBC
 	select BR2_INSTALL_LIBSTDCPP
 	select BR2_LARGEFILE

@@ -575,6 +596,7 @@ config BR2_TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_2011R1
 config BR2_TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_2010RC1
 	bool "Blackfin.uclinux.org 2010RC1"
 	depends on BR2_bfin
+	depends on BR2_HOSTARCH = "x86_64" || BR2_HOSTARCH = "x86"
 	select BR2_TOOLCHAIN_EXTERNAL_UCLIBC
 	select BR2_INSTALL_LIBSTDCPP
 	select BR2_LARGEFILE

@@ -590,6 +612,7 @@ config BR2_TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_2010RC1
 config BR2_TOOLCHAIN_EXTERNAL_XILINX_MICROBLAZEEL_V2
 	bool "Xilinx Little Endian Microblaze GNU Tools"
 	depends on BR2_microblazeel
+	depends on BR2_HOSTARCH = "x86_64" || BR2_HOSTARCH = "x86"
 	select BR2_TOOLCHAIN_EXTERNAL_GLIBC
 	select BR2_TOOLCHAIN_HAS_NATIVE_RPC
 	help

@@ -599,6 +622,7 @@ config BR2_TOOLCHAIN_EXTERNAL_XILINX_MICROBLAZEEL_V2
 config BR2_TOOLCHAIN_EXTERNAL_XILINX_MICROBLAZEBE_V2
 	bool "Xilinx Big Endian Microblaze GNU Tools"
 	depends on BR2_microblazebe
+	depends on BR2_HOSTARCH = "x86_64" || BR2_HOSTARCH = "x86"
 	select BR2_TOOLCHAIN_EXTERNAL_GLIBC
 	select BR2_TOOLCHAIN_HAS_NATIVE_RPC
 	help

@@ -608,6 +632,7 @@ config BR2_TOOLCHAIN_EXTERNAL_XILINX_MICROBLAZEBE_V2
 config BR2_TOOLCHAIN_EXTERNAL_LINARO_AARCH64_12_12
 	bool "Linaro AArch64 12.12"
 	depends on BR2_aarch64
+	depends on BR2_HOSTARCH = "x86_64" || BR2_HOSTARCH = "x86"
 	select BR2_TOOLCHAIN_EXTERNAL_GLIBC
 	select BR2_INSTALL_LIBSTDCPP
 	help

@@ -617,6 +642,7 @@ config BR2_TOOLCHAIN_EXTERNAL_LINARO_AARCH64_12_12
 config BR2_TOOLCHAIN_EXTERNAL_LINARO_AARCH64_12_11
 	bool "Linaro AArch64 12.11"
 	depends on BR2_aarch64
+	depends on BR2_HOSTARCH = "x86_64" || BR2_HOSTARCH = "x86"
 	select BR2_TOOLCHAIN_EXTERNAL_GLIBC
 	select BR2_INSTALL_LIBSTDCPP
 	help

@@ -626,6 +652,7 @@ config BR2_TOOLCHAIN_EXTERNAL_LINARO_AARCH64_12_11
 config BR2_TOOLCHAIN_EXTERNAL_LINARO_AARCH64_12_10
 	bool "Linaro AArch64 12.10"
 	depends on BR2_aarch64
+	depends on BR2_HOSTARCH = "x86_64" || BR2_HOSTARCH = "x86"
 	select BR2_TOOLCHAIN_EXTERNAL_GLIBC
 	select BR2_INSTALL_LIBSTDCPP
 	help

Signature · 1 line

1.7.9.5

Thomas Petazzoni

author

2012-12-29 16:14 UTC #2 lore raw

PATCH 2/4 Infrastructure to warn the user about missing 32 bits libraries

In reply to Thomas Petazzoni

Many users trying to use external toolchains on x86-64 machines get a very confusing message:

"Can't execute cross-compiler"

They get this message because they forgot to install the 32 bits compatibility libraries that are needed to run binaries compiled for x86 on x86-64 machines.

Since this is the case for both external toolchains and certain binary-only tools like SAM-BA, we add a new Kconfig option BR2_HOSTARCH_NEEDS_IA32_LIBS, that packages must select if they need the 32 bits compatibility libraries. When this option is enabled, dependencies.sh checks that the 32 bits dynamic library loader is present on the system, and if not, it stops and shows an error.

The path and name of the 32 bits dynamic loader is hardcoded because it is very unlikely to change, as it would break the ABI for all binaries.

Also, it is worth noting that the check will be done even if we're running on a 32 bits machine. This is harmless, as 32 bits machines necessarily have the 32 bits dynamic loader installed, so the error will never show up in this case.

Signed-off-by Thomas Petazzoni <[email protected]>

---
 Config.in                            |    6 ++++++
 support/dependencies/dependencies.sh |   11 +++++++++++
 2 files changed, 17 insertions(+)

Config.in +6 -0

index b319ac7..af77a83 100644
@@ -14,6 +14,12 @@ config BR2_HOSTARCH
 	string
 	option env="HOSTARCH"
 
+# Hidden boolean selected by pre-built packages for x86, when they
+# need to run on x86-64 machines (example: pre-built external
+# toolchains, binary tools like SAM-BA, etc.).
+config BR2_HOSTARCH_NEEDS_IA32_LIBS
+	bool
+
 source "arch/Config.in"
 
 menu "Build options"

support/dependencies/dependencies.sh +11 -0

index 7a02512..03e2742 100755
@@ -166,3 +166,14 @@ if grep -q ^BR2_PACKAGE_CLASSPATH=y $CONFIG_FILE ; then
 	fi
     done
 fi
+if grep -q ^BR2_HOSTARCH_NEEDS_IA32_LIBS=y $CONFIG_FILE ; then
+    if test ! -f /lib/ld-linux.so.2 ; then
+	/bin/echo -e "\nYour Buildroot configuration uses some pre-built tools for the x86 architecture,"
+	/bin/echo -e "but your build machine uses the x86-64 architecture without the 32 bits compatibility"
+	/bin/echo -e "library."
+	/bin/echo -e "If you're running a Debian/Ubuntu distribution, install the libc:i386 package."
+	/bin/echo -e "For other distributions, refer to the documentation on how to install the 32 bits"
+	/bin/echo -e "compatibility libraries."
+	exit 1
+    fi
+fi

Signature · 1 line

1.7.9.5

Arnout Vandecappelle

2013-01-07 07:55 UTC #3 lore raw

PATCH 2/4 Infrastructure to warn the user about missing 32 bits libraries

Quoted 5 lines · Thomas Petazzoni

Many users trying to use external toolchains on x86-64 machines get a very confusing message:
"Can't execute cross-compiler"

Quoted 7 lines

They get this message because they forgot to install the 32 bits compatibility libraries that are needed to run binaries compiled for x86 on x86-64 machines.
Since this is the case for both external toolchains and certain binary-only tools like SAM-BA, we add a new Kconfig option BR2_HOSTARCH_NEEDS_IA32_LIBS, that packages must select if they need

Since x86_64 is also an IA32, I would rather call it
BR2_HOSTARCH_NEEDS_I386_LIBS.

Quoted 4 lines

the 32 bits compatibility libraries. When this option is enabled, dependencies.sh checks that the 32 bits dynamic library loader is present on the system, and if not, it stops and shows an error.

Quoted 8 lines

The path and name of the 32 bits dynamic loader is hardcoded because it is very unlikely to change, as it would break the ABI for all binaries.
Also, it is worth noting that the check will be done even if we're running on a 32 bits machine. This is harmless, as 32 bits machines necessarily have the 32 bits dynamic loader installed, so the error will never show up in this case.

Perhaps move these two comments to dependencies.sh so we don't forget
about it?

Quoted 2 lines

Signed-off-by Thomas Petazzoni<[email protected]>

Acked-by Arnout Vandecappelle (Essensium/Mind) <[email protected]>

Quoted 27 lines

---
  Config.in                            |    6 ++++++
  support/dependencies/dependencies.sh |   11 +++++++++++
  2 files changed, 17 insertions(+)

Config.in +6 -0

index b319ac7..af77a83 100644
@@ -14,6 +14,12 @@ config BR2_HOSTARCH
  	string
  	option env="HOSTARCH"
 
+# Hidden boolean selected by pre-built packages for x86, when they
+# need to run on x86-64 machines (example: pre-built external
+# toolchains, binary tools like SAM-BA, etc.).
+config BR2_HOSTARCH_NEEDS_IA32_LIBS
+	bool
+
  source "arch/Config.in"
 
  menu "Build options"

support/dependencies/dependencies.sh +0 -0

index 7a02512..03e2742 100755

support/dependencies/dependencies.sh if grep -q ^BR2_PACKAGE_CLASSPATH=y $CONFIG_FILE ; then · line 172

Quoted 7 lines

support/dependencies/dependencies.sh +4 -0

@@ -166,3 +166,14 @@ if grep -q ^BR2_PACKAGE_CLASSPATH=y $CONFIG_FILE ; then
  	fi
      done
  fi
+if grep -q ^BR2_HOSTARCH_NEEDS_IA32_LIBS=y $CONFIG_FILE ; then
+    if test ! -f /lib/ld-linux.so.2 ; then
+	/bin/echo -e "\nYour Buildroot configuration uses some pre-built tools for the x86 architecture,"
+	/bin/echo -e "but your build machine uses the x86-64 architecture without the 32 bits compatibility"

This line is more than 80 columns.

support/dependencies/dependencies.sh if grep -q ^BR2_PACKAGE_CLASSPATH=y $CONFIG_FILE ; then · line 176

Quoted 4 lines

support/dependencies/dependencies.sh +4 -0

+	/bin/echo -e "library."
+	/bin/echo -e "If you're running a Debian/Ubuntu distribution, install the libc:i386 package."
+	/bin/echo -e "For other distributions, refer to the documentation on how to install the 32 bits"
+	/bin/echo -e "compatibility libraries."

"the documentation" sounds as if it is the buildroot documentation, so
make it "refer to your distribution's documentation"

Also this is only for relatively recent Debian/Ubuntu with full
multilib support. Before that it was called libc-i386 IIRC.

Is there anyone out there with a Redhat/Fedora who can tell us how to
install it there?

And finally, it would be good to mention this in
docs/manual/prerequisite.txt

Regards,
Arnout

Quoted 3 lines

support/dependencies/dependencies.sh +3 -0
+	exit 1
+    fi
+fi

Signature · 6 lines

Arnout Vandecappelle                          arnout at mind be
Senior Embedded Software Architect            +32-16-286500
Essensium/Mind                                http://www.mind.be
G.Geenslaan 9, 3001 Leuven, Belgium           BE 872 984 063 RPR Leuven
LinkedIn profile: http://www.linkedin.com/in/arnoutvandecappelle
GPG fingerprint:  7CB5 E4CC 6C2E EFD4 6E3D A754 F963 ECAB 2450 2F1F

Thomas Petazzoni

author

2012-12-29 16:14 UTC #4 lore raw

PATCH 3/4 toolchain-external: use BR2_HOSTARCH_NEEDS_IA32_LIBS where needed

In reply to Thomas Petazzoni

All supported pre-built external toolchains are built for x86 Linux, so we add the BR2_HOSTARCH_NEEDS_IA32_LIBS select.

Signed-off-by Thomas Petazzoni <[email protected]>

---
 toolchain/toolchain-external/Config.in |   27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)

toolchain/toolchain-external/Config.in +27 -0

index c14736d..bdf4334 100644
@@ -11,6 +11,7 @@ config BR2_TOOLCHAIN_EXTERNAL_LINARO_2012_12
 	select BR2_TOOLCHAIN_EXTERNAL_GLIBC
 	select BR2_TOOLCHAIN_HAS_NATIVE_RPC
 	select BR2_INSTALL_LIBSTDCPP
+	select BR2_HOSTARCH_NEEDS_IA32_LIBS
 	help
 	  Linaro toolchain for the ARM architecture. It uses Linaro
 	  GCC 2012.12 (based on gcc 4.7), Linaro GDB 2012.12 (based on

@@ -29,6 +30,7 @@ config BR2_TOOLCHAIN_EXTERNAL_LINARO_2012_11
 	select BR2_TOOLCHAIN_EXTERNAL_GLIBC
 	select BR2_TOOLCHAIN_HAS_NATIVE_RPC
 	select BR2_INSTALL_LIBSTDCPP
+	select BR2_HOSTARCH_NEEDS_IA32_LIBS
 	help
 	  Linaro toolchain for the ARM architecture. It uses Linaro
 	  GCC 2012.11 (based on gcc 4.7), Linaro GDB 2012.10 (based on

@@ -47,6 +49,7 @@ config BR2_TOOLCHAIN_EXTERNAL_LINARO_2012_10
 	select BR2_TOOLCHAIN_EXTERNAL_GLIBC
 	select BR2_TOOLCHAIN_HAS_NATIVE_RPC
 	select BR2_INSTALL_LIBSTDCPP
+	select BR2_HOSTARCH_NEEDS_IA32_LIBS
 	help
 	  Linaro toolchain for the ARM architecture. It uses Linaro
 	  GCC 2012.10 (based on gcc 4.7), Linaro GDB 2012.10 (based on

@@ -68,6 +71,7 @@ config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_ARM201203
 	select BR2_TOOLCHAIN_EXTERNAL_GLIBC
 	select BR2_TOOLCHAIN_HAS_NATIVE_RPC
 	select BR2_INSTALL_LIBSTDCPP
+	select BR2_HOSTARCH_NEEDS_IA32_LIBS
 	help
 	  Sourcery CodeBench toolchain for the ARM architecture, from
 	  Mentor Graphics. It uses gcc 4.6.3, binutils 2.21.53, glibc

@@ -91,6 +95,7 @@ config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_ARM201109
 	select BR2_TOOLCHAIN_EXTERNAL_GLIBC
 	select BR2_TOOLCHAIN_HAS_NATIVE_RPC
 	select BR2_INSTALL_LIBSTDCPP
+	select BR2_HOSTARCH_NEEDS_IA32_LIBS
 	help
 	  Sourcery CodeBench toolchain for the ARM architecture, from
 	  Mentor Graphics. It uses gcc 4.6.1, binutils 2.21.53, glibc

@@ -114,6 +119,7 @@ config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_MIPS201209
 	select BR2_TOOLCHAIN_EXTERNAL_GLIBC
 	select BR2_TOOLCHAIN_HAS_NATIVE_RPC
 	select BR2_INSTALL_LIBSTDCPP
+	select BR2_HOSTARCH_NEEDS_IA32_LIBS
 	help
 	  Sourcery CodeBench toolchain for the MIPS architecture, from
 	  Mentor Graphics. It uses gcc 4.7.2, binutils 2.23.51, glibc

@@ -183,6 +189,7 @@ config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_MIPS201203
 	select BR2_TOOLCHAIN_EXTERNAL_GLIBC
 	select BR2_TOOLCHAIN_HAS_NATIVE_RPC
 	select BR2_INSTALL_LIBSTDCPP
+	select BR2_HOSTARCH_NEEDS_IA32_LIBS
 	help
 	  Sourcery CodeBench toolchain for the MIPS architecture, from
 	  Mentor Graphics. It uses gcc 4.6.3, binutils 2.21.53, glibc

@@ -252,6 +259,7 @@ config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_ARM201103
 	select BR2_TOOLCHAIN_EXTERNAL_GLIBC
 	select BR2_TOOLCHAIN_HAS_NATIVE_RPC
 	select BR2_INSTALL_LIBSTDCPP
+	select BR2_HOSTARCH_NEEDS_IA32_LIBS
 	help
 	  Sourcery CodeBench toolchain for the ARM architecture, from
 	  Mentor Graphics. It uses gcc 4.5.2, binutils 2.20.51, glibc

@@ -275,6 +283,7 @@ config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_MIPS201109
 	select BR2_TOOLCHAIN_EXTERNAL_GLIBC
 	select BR2_TOOLCHAIN_HAS_NATIVE_RPC
 	select BR2_INSTALL_LIBSTDCPP
+	select BR2_HOSTARCH_NEEDS_IA32_LIBS
 	help
 	  Sourcery CodeBench toolchain for the MIPS architecture, from
 	  Mentor Graphics. It uses gcc 4.5.2, binutils 2.21.53, glibc

@@ -344,6 +353,7 @@ config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_POWERPC201103
 	select BR2_TOOLCHAIN_EXTERNAL_GLIBC
 	select BR2_TOOLCHAIN_HAS_NATIVE_RPC
 	select BR2_INSTALL_LIBSTDCPP
+	select BR2_HOSTARCH_NEEDS_IA32_LIBS
 	help
 	  Sourcery CodeBench toolchain for the PowerPC architecture,
 	  from Mentor Graphics. It uses gcc 4.5.2, binutils 2.20.51,

@@ -373,6 +383,7 @@ config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_POWERPC201009
 	select BR2_TOOLCHAIN_EXTERNAL_GLIBC
 	select BR2_TOOLCHAIN_HAS_NATIVE_RPC
 	select BR2_INSTALL_LIBSTDCPP
+	select BR2_HOSTARCH_NEEDS_IA32_LIBS
 	help
 	  Sourcery CodeBench toolchain for the PowerPC architecture,
 	  from Mentor Graphics. It uses gcc 4.5.1, binutils 2.20,

@@ -402,6 +413,7 @@ config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_SH201209
 	select BR2_TOOLCHAIN_EXTERNAL_GLIBC
 	select BR2_TOOLCHAIN_HAS_NATIVE_RPC
 	select BR2_INSTALL_LIBSTDCPP
+	select BR2_HOSTARCH_NEEDS_IA32_LIBS
 	help
 	  Sourcery CodeBench toolchain for the SuperH architecture,
 	  from Mentor Graphics. It uses gcc 4.7.2, binutils 2.23.51,

@@ -422,6 +434,7 @@ config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_SH201203
 	depends on BR2_HOSTARCH = "x86_64" || BR2_HOSTARCH = "x86"
 	select BR2_TOOLCHAIN_EXTERNAL_GLIBC
 	select BR2_INSTALL_LIBSTDCPP
+	select BR2_HOSTARCH_NEEDS_IA32_LIBS
 	help
 	  Sourcery CodeBench toolchain for the SuperH architecture,
 	  from Mentor Graphics. It uses gcc 4.6.3, binutils 2.21.53,

@@ -443,6 +456,7 @@ config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_SH201103
 	select BR2_TOOLCHAIN_EXTERNAL_GLIBC
 	select BR2_TOOLCHAIN_HAS_NATIVE_RPC
 	select BR2_INSTALL_LIBSTDCPP
+	select BR2_HOSTARCH_NEEDS_IA32_LIBS
 	help
 	  Sourcery CodeBench toolchain for the SuperH architecture,
 	  from Mentor Graphics. It uses gcc 4.5.2, binutils 2.20,

@@ -468,6 +482,7 @@ config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_SH2A_201103
 	select BR2_TOOLCHAIN_HAS_THREADS
 	select BR2_TOOLCHAIN_HAS_THREADS_DEBUG
 	select BR2_INSTALL_LIBSTDCPP
+	select BR2_HOSTARCH_NEEDS_IA32_LIBS
 	help
 	  Sourcery CodeBench toolchain for the SuperH architecture,
 	  from Mentor Graphics. It uses gcc 4.5.2, binutils 2.20,

@@ -486,6 +501,7 @@ config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_SH2A_201009
 	select BR2_TOOLCHAIN_HAS_THREADS
 	select BR2_TOOLCHAIN_HAS_THREADS_DEBUG
 	select BR2_INSTALL_LIBSTDCPP
+	select BR2_HOSTARCH_NEEDS_IA32_LIBS
 	help
 	  Sourcery CodeBench toolchain for the SuperH architecture,
 	  from Mentor Graphics. It uses gcc 4.5.1, binutils 2.20,

@@ -500,6 +516,7 @@ config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_X86_201209
 	select BR2_TOOLCHAIN_EXTERNAL_GLIBC
 	select BR2_TOOLCHAIN_HAS_NATIVE_RPC
 	select BR2_INSTALL_LIBSTDCPP
+	select BR2_HOSTARCH_NEEDS_IA32_LIBS
 	help
 	  Sourcery CodeBench toolchain for the x86/x86_64
 	  architectures, from Mentor Graphics. It uses gcc 4.7.2,

@@ -522,6 +539,7 @@ config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_X86_201203
 	depends on BR2_HOSTARCH = "x86_64" || BR2_HOSTARCH = "x86"
 	select BR2_TOOLCHAIN_EXTERNAL_GLIBC
 	select BR2_INSTALL_LIBSTDCPP
+	select BR2_HOSTARCH_NEEDS_IA32_LIBS
 	help
 	  Sourcery CodeBench toolchain for the x86/x86_64
 	  architectures, from Mentor Graphics. It uses gcc 4.6.3,

@@ -545,6 +563,7 @@ config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_X86_201109
 	select BR2_TOOLCHAIN_EXTERNAL_GLIBC
 	select BR2_TOOLCHAIN_HAS_NATIVE_RPC
 	select BR2_INSTALL_LIBSTDCPP
+	select BR2_HOSTARCH_NEEDS_IA32_LIBS
 	help
 	  Sourcery CodeBench toolchain for the x86/x86_64
 	  architectures, from Mentor Graphics. It uses gcc 4.6.1,

@@ -573,6 +592,7 @@ config BR2_TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_2012R1
 	select BR2_USE_WCHAR
 	select BR2_TOOLCHAIN_HAS_THREADS
 	select BR2_TOOLCHAIN_HAS_THREADS_DEBUG
+	select BR2_HOSTARCH_NEEDS_IA32_LIBS
 	help
 	  Toolchain for the Blackfin architecture, from
 	  http://blackfin.uclinux.org.

@@ -589,6 +609,7 @@ config BR2_TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_2011R1
 	select BR2_USE_WCHAR
 	select BR2_TOOLCHAIN_HAS_THREADS
 	select BR2_TOOLCHAIN_HAS_THREADS_DEBUG
+	select BR2_HOSTARCH_NEEDS_IA32_LIBS
 	help
 	  Toolchain for the Blackfin architecture, from
 	  http://blackfin.uclinux.org.

@@ -605,6 +626,7 @@ config BR2_TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_2010RC1
 	select BR2_USE_WCHAR
 	select BR2_TOOLCHAIN_HAS_THREADS
 	select BR2_TOOLCHAIN_HAS_THREADS_DEBUG
+	select BR2_HOSTARCH_NEEDS_IA32_LIBS
 	help
 	  Toolchain for the Blackfin architecture, from
 	  http://blackfin.uclinux.org.

@@ -615,6 +637,7 @@ config BR2_TOOLCHAIN_EXTERNAL_XILINX_MICROBLAZEEL_V2
 	depends on BR2_HOSTARCH = "x86_64" || BR2_HOSTARCH = "x86"
 	select BR2_TOOLCHAIN_EXTERNAL_GLIBC
 	select BR2_TOOLCHAIN_HAS_NATIVE_RPC
+	select BR2_HOSTARCH_NEEDS_IA32_LIBS
 	help
 	  Toolchain for the Microblaze architecture, from
 	  http://wiki.xilinx.com/mb-gnu-tools

@@ -625,6 +648,7 @@ config BR2_TOOLCHAIN_EXTERNAL_XILINX_MICROBLAZEBE_V2
 	depends on BR2_HOSTARCH = "x86_64" || BR2_HOSTARCH = "x86"
 	select BR2_TOOLCHAIN_EXTERNAL_GLIBC
 	select BR2_TOOLCHAIN_HAS_NATIVE_RPC
+	select BR2_HOSTARCH_NEEDS_IA32_LIBS
 	help
 	  Toolchain for the Microblaze architecture, from
 	  http://wiki.xilinx.com/mb-gnu-tools

@@ -635,6 +659,7 @@ config BR2_TOOLCHAIN_EXTERNAL_LINARO_AARCH64_12_12
 	depends on BR2_HOSTARCH = "x86_64" || BR2_HOSTARCH = "x86"
 	select BR2_TOOLCHAIN_EXTERNAL_GLIBC
 	select BR2_INSTALL_LIBSTDCPP
+	select BR2_HOSTARCH_NEEDS_IA32_LIBS
 	help
 	  Toolchain for the AArch64 architecture, from
 	  http://www.linaro.org/engineering/armv8/

@@ -645,6 +670,7 @@ config BR2_TOOLCHAIN_EXTERNAL_LINARO_AARCH64_12_11
 	depends on BR2_HOSTARCH = "x86_64" || BR2_HOSTARCH = "x86"
 	select BR2_TOOLCHAIN_EXTERNAL_GLIBC
 	select BR2_INSTALL_LIBSTDCPP
+	select BR2_HOSTARCH_NEEDS_IA32_LIBS
 	help
 	  Toolchain for the AArch64 architecture, from
 	  http://www.linaro.org/engineering/armv8/

@@ -655,6 +681,7 @@ config BR2_TOOLCHAIN_EXTERNAL_LINARO_AARCH64_12_10
 	depends on BR2_HOSTARCH = "x86_64" || BR2_HOSTARCH = "x86"
 	select BR2_TOOLCHAIN_EXTERNAL_GLIBC
 	select BR2_INSTALL_LIBSTDCPP
+	select BR2_HOSTARCH_NEEDS_IA32_LIBS
 	help
 	  Toolchain for the AArch64 architecture, from
 	  http://www.linaro.org/engineering/armv8/

Signature · 1 line

1.7.9.5

Thomas Petazzoni

author

2012-12-29 16:14 UTC #5 lore raw

PATCH 4/4 sam-ba: select BR2_HOSTARCH_NEEDS_IA32_LIBS

In reply to Thomas Petazzoni

sam-ba is a pre-built binary tool built for x86 Linux, so on x86-64, it requires the 32 bits compatibility libraries to be installed.

Signed-off-by Thomas Petazzoni <[email protected]>

---
 package/sam-ba/Config.in.host |    1 +
 1 file changed, 1 insertion(+)

package/sam-ba/Config.in.host +1 -0

index 20b2b36..6093865 100644
@@ -1,6 +1,7 @@
 config BR2_PACKAGE_HOST_SAM_BA
 	bool "host sam-ba"
 	depends on BR2_HOSTARCH = "x86_64" || BR2_HOSTARCH = "x86"
+	select BR2_HOSTARCH_NEEDS_IA32_LIBS
 	help
 	  Atmel SAM-BA software provides an open set of tools for
 	  programming the Atmel SAM3, SAM7 and SAM9 ARM-based

Signature · 1 line

1.7.9.5

Thomas Petazzoni

author

2013-01-06 15:43 UTC #6 lore raw

In reply to Thomas Petazzoni

Quoted 12 lines · Thomas Petazzoni

Recently, we have had a number of users having issues with external toolchains because those are built for 32 bits Linux, and most developers know use 64 bits build machines. The error message such users get so far is very cryptic "Cannot execute cross-compiler".
So, this set of patches adds a small infrastructure in the form of a Kconfig option and a check in dependencies.sh. The Kconfig option allows packages to tell whether they need 32 bits compatibility libraries, and the check in dependencies.sh verifies that those libraries are installed (simply by checking the presence of the 32 bits dynamic loader).

Quoted 5 lines

Then, all pre-built external toolchains as well as the sam-ba tool are modified to use this mechanism.
As a preliminary patch, all the pre-built external toolchains are changed to be visible only if the host architecture is x86 or x86-64.

Ping? Any problem with this?

Thanks,

Thomas

Signature · 4 lines

Thomas Petazzoni, Free Electrons
Kernel, drivers, real-time and embedded Linux
development, consulting, training and support.
http://free-electrons.com

Peter Korsgaard

2013-01-06 20:43 UTC #7 lore raw

In reply to Thomas Petazzoni

Quoted 1 line

Quoted 1 line
Quoted 1 line
Quoted 1 line
Quoted 1 line
"Thomas" == Thomas Petazzoni <[email protected]> writes:

Thomas> Hello,
Thomas> Recently, we have had a number of users having issues with external Thomas> toolchains because those are built for 32 bits Linux, and most Thomas> developers know use 64 bits build machines. The error message such Thomas> users get so far is very cryptic "Cannot execute cross-compiler".

Thomas> So, this set of patches adds a small infrastructure in the form of a Thomas> Kconfig option and a check in dependencies.sh. The Kconfig option Thomas> allows packages to tell whether they need 32 bits compatibility Thomas> libraries, and the check in dependencies.sh verifies that those Thomas> libraries are installed (simply by checking the presence of the 32 Thomas> bits dynamic loader).

Thomas> Then, all pre-built external toolchains as well as the sam-ba tool are Thomas> modified to use this mechanism.

Thomas> As a preliminary patch, all the pre-built external toolchains are Thomas> changed to be visible only if the host architecture is x86 or x86-64.

The microblaze ext toolchains are 64bit, so I've fixed that up and committed the series, thanks.

Signature · 1 line

Bye, Peter Korsgaard