toolchain-external: CodeSourcery PowerPC: Revert the removal of CS PowerPC 2011.03

PATCH New Romain Naour 4 participants 4 messages Dec 26, 2015 – Dec 30, 2015

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Romain Naour

author

2015-12-26 21:11 UTC #0 lore raw

PATCH v2 1/1 toolchain-external: CodeSourcery PowerPC: Revert the removal of CS PowerPC 2011.03

As reported by Yann E. MORIN [1], the latest CS PowerPC toolchain (2012.03) requires a PPC CPU with SPE, which is basically two variants, 8540 (e500v1) and 8548 (e500v2) in Buildroot. All other PPC CPU can't use that toolchain.

Keep CS PowerPC 2011.03 as latest available version and add a second Kconfig symbol for the CS PowerPC 2012.03 since it's verry specific to one CPU type (e500v2).

Previously it was possible to select the CS 2012.03 with a powerpc 8540 (e500v1) CPU but the sysroot provided by the toolchain only support the 8548 (e500v2) variant. Allow to select CS 2012.03 only with BR2_powerpc_8548.

Also re-add the previous CS toolchain handling for pixman and liquid-dsp.

[1] http://lists.busybox.net/pipermail/buildroot/2015-December/148308.html

Reported-by "Yann E. MORIN" <[email protected]>

Signed-off-by Romain Naour <[email protected]>

Cc Gustavo Zacarias <[email protected]>

---
v2: Add a second Kconfig symbol for the CS PowerPC 2012.03 since it's verry specific
to one CPU type (e500v2)

---
 package/liquid-dsp/Config.in                       |  3 ++
 package/pixman/pixman.mk                           |  5 +++
 toolchain/toolchain-external/Config.in             | 42 +++++++++++++++++++---
 .../toolchain-external/toolchain-external.hash     |  1 +
 toolchain/toolchain-external/toolchain-external.mk |  5 ++-
 5 files changed, 51 insertions(+), 5 deletions(-)

package/liquid-dsp/Config.in +3 -0

index a2cd21c..ad887cb 100644
@@ -1,10 +1,13 @@
 comment "liquid-dsp requires a (e)glibc/musl toolchain w/ dynamic library"
+	depends on !BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_POWERPC
 	depends on !(BR2_TOOLCHAIN_USES_GLIBC || BR2_TOOLCHAIN_USES_MUSL) || BR2_STATIC_LIBS
 
 config BR2_PACKAGE_LIQUID_DSP
 	bool "liquid-dsp"
 	depends on BR2_TOOLCHAIN_USES_GLIBC || BR2_TOOLCHAIN_USES_MUSL
 	depends on !BR2_STATIC_LIBS
+	# These result in internal compiler error
+	depends on !BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_POWERPC
 	help
 	  Liquid-DSP is a free and open-source signal processing
 	  library for software-defined radios written in C.  Its

package/pixman/pixman.mk +5 -0

index 29b01ee..a130af9 100644
@@ -32,5 +32,10 @@ ifeq ($(BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_NIOSII),y)
 PIXMAN_CONF_ENV += CFLAGS="$(TARGET_CFLAGS) -DPIXMAN_NO_TLS"
 endif
 
+# Altivec detection isn't reliable for CS toolchains
+ifeq ($(BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_POWERPC),y)
+PIXMAN_CONF_OPTS += --disable-vmx
+endif
+
 $(eval $(autotools-package))
 $(eval $(host-autotools-package))

toolchain/toolchain-external/Config.in +38 -4

61 lines not on this page · raw message

toolchain/toolchain-external/toolchain-external.hash +1 -0

index 35ee85c..64dcdb4 100644
@@ -15,6 +15,7 @@ sha256 39ee0e789034334ecc89af94e838e3a4815400ac5ff980f808f466b04778532e  arm-201
 # NiosII
 sha256 cc47745dc1264fcb8fb98fb1315ab772ab98691396021c455229b58abaf887f5  sourceryg++-2015.11-27-nios2-linux-gnu-i686-pc-linux-gnu.tar.bz2
 # PowerPC
+sha256 525e1f53abbf65c2974ae9af762c45bb38520fe5fc50e968a23fe6a18e9eec04  freescale-2011.03-38-powerpc-linux-gnu-i686-pc-linux-gnu.tar.bz2
 sha256 d6c94587d546197836e7e1a6909f6aabfa5879e91f501ab03088a6887cc242fc  mentor-2012.03-71-powerpc-mentor-linux-gnu-i686-pc-linux-gnu.tar.bz2
 # SuperH
 sha256 59d6766fde244931aa52db01433d5acd051998762a931121c5fc109536a1a802  renesas-2012.09-61-sh-linux-gnu-i686-pc-linux-gnu.tar.bz2

toolchain/toolchain-external/toolchain-external.mk +4 -1

index 8a9ea88..8fdc7c6 100644
@@ -317,9 +317,12 @@ TOOLCHAIN_EXTERNAL_SOURCE = mips-2015.11-32-mips-linux-gnu-i686-pc-linux-gnu.tar
 else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_NIOSII),y)
 TOOLCHAIN_EXTERNAL_SITE = http://sourcery.mentor.com/public/gnu_toolchain/nios2-linux-gnu
 TOOLCHAIN_EXTERNAL_SOURCE = sourceryg++-2015.11-27-nios2-linux-gnu-i686-pc-linux-gnu.tar.bz2
-else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_POWERPC),y)
+else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_POWERPC_E500V2),y)
 TOOLCHAIN_EXTERNAL_SITE = http://sourcery.mentor.com/public/gnu_toolchain/powerpc-mentor-linux-gnu
 TOOLCHAIN_EXTERNAL_SOURCE = mentor-2012.03-71-powerpc-mentor-linux-gnu-i686-pc-linux-gnu.tar.bz2
+else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_POWERPC),y)
+TOOLCHAIN_EXTERNAL_SITE = http://sourcery.mentor.com/public/gnu_toolchain/powerpc-linux-gnu
+TOOLCHAIN_EXTERNAL_SOURCE = freescale-2011.03-38-powerpc-linux-gnu-i686-pc-linux-gnu.tar.bz2
 else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_SH),y)
 TOOLCHAIN_EXTERNAL_SITE = https://sourcery.mentor.com/public/gnu_toolchain/sh-linux-gnu
 TOOLCHAIN_EXTERNAL_SOURCE = renesas-2012.09-61-sh-linux-gnu-i686-pc-linux-gnu.tar.bz2

Signature · 1 line

2.4.3

Yann E. MORIN

2015-12-26 22:04 UTC #1 lore raw

PATCH v2 1/1 toolchain-external: CodeSourcery PowerPC: Revert the removal of CS PowerPC 2011.03

Romain, Thomas, Gustavo, All,

On 2015-12-26 22:11 +0100, Romain Naour spake thusly:

Quoted 12 lines

As reported by Yann E. MORIN [1], the latest CS PowerPC toolchain (2012.03) requires a PPC CPU with SPE, which is basically two variants, 8540 (e500v1) and 8548 (e500v2) in Buildroot. All other PPC CPU can't use that toolchain.
Keep CS PowerPC 2011.03 as latest available version and add a second Kconfig symbol for the CS PowerPC 2012.03 since it's verry specific to one CPU type (e500v2).
Previously it was possible to select the CS 2012.03 with a powerpc 8540 (e500v1) CPU but the sysroot provided by the toolchain only support the 8548 (e500v2) variant. Allow to select CS 2012.03 only with BR2_powerpc_8548.

Quoted 7 lines

Also re-add the previous CS toolchain handling for pixman and liquid-dsp.
[1] http://lists.busybox.net/pipermail/buildroot/2015-December/148308.html
Reported-by "Yann E. MORIN" <[email protected]>
Signed-off-by Romain Naour <[email protected]>
Cc Gustavo Zacarias <[email protected]>

[--SNIP--]

toolchain/toolchain-external/Config.in config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_NIOSII · line 288

Quoted 12 lines

toolchain/toolchain-external/Config.in +2 -2

index 8d4a835..86f24e2 100644
@@ -284,10 +284,10 @@ config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_NIOSII
 	  from Mentor Graphics. It uses gcc 5.2, binutils 2.25.51,
 	  glibc 2.22, gdb 7.10.50 and kernel headers 4.2.
 
-config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_POWERPC
-	bool "Sourcery CodeBench PowerPC 2012.03"
+config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_POWERPC_E500V2
+	bool "Sourcery CodeBench PowerPC 2012.03 (e500v2 only)"

Or we just ditch 2012.03 altogether, and just keep 2011.03.

The difference being:

- back to a gcc-4.5 instead of gcc-46.6; we loose 5 packages:
apitrace, dawgdig, mpd, upmpdcli and zmqpp

- back to kernel headers 2.6.38 instead of 3.2; we loose 31 packages:
bluez5_utils cdrkit dhcpcd dvb-apps dvdrw-tools fastd gst1-plugins-good ifupdown iproute2 libcap libnftnl libseccomp libv4l lxc mjpg-streamer mmc-utils network-manager nftables openswan racehound smack squid stress-ng tvheadend util-linux v4l2grab vlc w_scan weston zbar

Thomas, Gustavo: your opinion?

Regards,
Yann E. MORIN.

Quoted 93 lines

toolchain/toolchain-external/Config.in +36 -2

 	depends on BR2_powerpc
-	depends on BR2_powerpc_SPE
+	depends on BR2_powerpc_8548 # e500v2 support only
 	depends on BR2_HOSTARCH = "x86_64" || BR2_HOSTARCH = "x86"
 	depends on !BR2_STATIC_LIBS
 	select BR2_TOOLCHAIN_EXTERNAL_GLIBC

@@ -303,6 +303,39 @@ config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_POWERPC
 	  support for the following variants:
 	    - e500v2 glibc, SPE, 32 bits
 
+config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_POWERPC
+	bool "Sourcery CodeBench PowerPC 2011.03"
+	depends on BR2_powerpc
+	depends on BR2_HOSTARCH = "x86_64" || BR2_HOSTARCH = "x86"
+	depends on !BR2_STATIC_LIBS
+	select BR2_TOOLCHAIN_EXTERNAL_GLIBC
+	select BR2_TOOLCHAIN_HAS_NATIVE_RPC
+	select BR2_INSTALL_LIBSTDCPP
+	select BR2_HOSTARCH_NEEDS_IA32_LIBS
+	# kernel headers: 2.6.38
+	select BR2_TOOLCHAIN_GCC_AT_LEAST_4_5
+	help
+	  Sourcery CodeBench toolchain for the PowerPC architecture,
+	  from Mentor Graphics. It uses gcc 4.5.2, binutils 2.20.51,
+	  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_SH
 	bool "Sourcery CodeBench SH 2012.09"
 	depends on BR2_sh4a || BR2_sh4aeb

@@ -552,7 +585,8 @@ config BR2_TOOLCHAIN_EXTERNAL_PREFIX
 	default "aarch64-linux-gnu"      if BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_AARCH64
 	default "mips-linux-gnu"         if BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_MIPS
 	default "nios2-linux-gnu"        if BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_NIOSII
-	default "powerpc-mentor-linux-gnu" if BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_POWERPC
+	default "powerpc-linux-gnu"      if BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_POWERPC
+	default "powerpc-mentor-linux-gnu" if BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_POWERPC_E500V2
 	default "sh-linux-gnu"           if BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_SH
 	default "i686-pc-linux-gnu"	 if BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_X86
 	default "x86_64-amd-linux-gnu"   if BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_AMD64

toolchain/toolchain-external/toolchain-external.hash +1 -0

index 35ee85c..64dcdb4 100644
@@ -15,6 +15,7 @@ sha256 39ee0e789034334ecc89af94e838e3a4815400ac5ff980f808f466b04778532e  arm-201
 # NiosII
 sha256 cc47745dc1264fcb8fb98fb1315ab772ab98691396021c455229b58abaf887f5  sourceryg++-2015.11-27-nios2-linux-gnu-i686-pc-linux-gnu.tar.bz2
 # PowerPC
+sha256 525e1f53abbf65c2974ae9af762c45bb38520fe5fc50e968a23fe6a18e9eec04  freescale-2011.03-38-powerpc-linux-gnu-i686-pc-linux-gnu.tar.bz2
 sha256 d6c94587d546197836e7e1a6909f6aabfa5879e91f501ab03088a6887cc242fc  mentor-2012.03-71-powerpc-mentor-linux-gnu-i686-pc-linux-gnu.tar.bz2
 # SuperH
 sha256 59d6766fde244931aa52db01433d5acd051998762a931121c5fc109536a1a802  renesas-2012.09-61-sh-linux-gnu-i686-pc-linux-gnu.tar.bz2

toolchain/toolchain-external/toolchain-external.mk +4 -1

index 8a9ea88..8fdc7c6 100644
@@ -317,9 +317,12 @@ TOOLCHAIN_EXTERNAL_SOURCE = mips-2015.11-32-mips-linux-gnu-i686-pc-linux-gnu.tar
 else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_NIOSII),y)
 TOOLCHAIN_EXTERNAL_SITE = http://sourcery.mentor.com/public/gnu_toolchain/nios2-linux-gnu
 TOOLCHAIN_EXTERNAL_SOURCE = sourceryg++-2015.11-27-nios2-linux-gnu-i686-pc-linux-gnu.tar.bz2
-else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_POWERPC),y)
+else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_POWERPC_E500V2),y)
 TOOLCHAIN_EXTERNAL_SITE = http://sourcery.mentor.com/public/gnu_toolchain/powerpc-mentor-linux-gnu
 TOOLCHAIN_EXTERNAL_SOURCE = mentor-2012.03-71-powerpc-mentor-linux-gnu-i686-pc-linux-gnu.tar.bz2
+else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_POWERPC),y)
+TOOLCHAIN_EXTERNAL_SITE = http://sourcery.mentor.com/public/gnu_toolchain/powerpc-linux-gnu
+TOOLCHAIN_EXTERNAL_SOURCE = freescale-2011.03-38-powerpc-linux-gnu-i686-pc-linux-gnu.tar.bz2
 else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_SH),y)
 TOOLCHAIN_EXTERNAL_SITE = https://sourcery.mentor.com/public/gnu_toolchain/sh-linux-gnu
 TOOLCHAIN_EXTERNAL_SOURCE = renesas-2012.09-61-sh-linux-gnu-i686-pc-linux-gnu.tar.bz2

Signature · 6 lines

2.4.3

_______________________________________________
buildroot mailing list
buildroot at busybox.net
http://lists.busybox.net/mailman/listinfo/buildroot

Signature · 6 lines

.-----------------.--------------------.------------------.--------------------.
|  Yann E. MORIN  | Real-Time Embedded | /"\ ASCII RIBBON | Erics' conspiracy: |
| +33 662 376 056 | Software  Designer | \ / CAMPAIGN     |  ___               |
| +33 223 225 172 `------------.-------:  X  AGAINST      |  \e/  There is no  |
| http://ymorin.is-a-geek.org/ | _/*\_ | / \ HTML MAIL    |   v   conspiracy.  |
'------------------------------^-------^------------------^--------------------'

Gustavo Zacarias

2015-12-28 19:17 UTC #2 lore raw

PATCH v2 1/1 toolchain-external: CodeSourcery PowerPC: Revert the removal of CS PowerPC 2011.03

Quoted 7 lines · Yann E. MORIN

Or we just ditch 2012.03 altogether, and just keep 2011.03.
The difference being:
- back to a gcc-4.5 instead of gcc-46.6; we loose 5 packages:
apitrace, dawgdig, mpd, upmpdcli and zmqpp

Quoted 8 lines

- back to kernel headers 2.6.38 instead of 3.2; we loose 31 packages:
bluez5_utils cdrkit dhcpcd dvb-apps dvdrw-tools fastd gst1-plugins-good ifupdown iproute2 libcap libnftnl libseccomp libv4l lxc mjpg-streamer mmc-utils network-manager nftables openswan racehound smack squid stress-ng tvheadend util-linux v4l2grab vlc w_scan weston zbar
Thomas, Gustavo: your opinion?

Hi all.
In general i dislike the CS powerpc toolchains, they're finicky and outdated, so i tend to roll my own via ct-ng or internal. That being said and going back to Romain's original mail, you can't have SPE and altivec at the same time, they're mutually exclusive. That's because SPE is basically a FPU bolted into CPU GP registers: for v1 it just implements single precision, for v2 it implements double (by extending the GP registers to 64 bits).
Altivec requires a "classic" FPU with dedicated registers. Getting that out of the way the altivec woes come from gcc changing the semantics for enabling them: in the old wild west that was -faltivec, the standard/modern way is -maltivec. The problem lies with Apple if i'm not wrong, since they ditched powerpc a while ago back then they used an old gcc, hence -faltivec, and in many cases the tested condition is based on that assumption (powerpc = apple). Care must be taken since the calling convention for the asm-optimized code might be OSX rather than linux as well, hence just switching the knob to the new/standard way may do no good.
Now back to SPE, since ABI can't be maintained between e500v1 and v2 for obvious reasons it was kind of decided to drop hard float from glibc, hence newer (eglibc >= 2.18 IIRC) versions can't be built targetting an e500v? without softfloat, so basically it's a dead path anyway (except uclibc*, it still has the hard float implementation in place, and screw the ABI).
Regards.

Thomas Petazzoni

Applied

2015-12-30 21:39 UTC #3 lore raw

PATCH v2 1/1 toolchain-external: CodeSourcery PowerPC: Revert the removal of CS PowerPC 2011.03

In reply to Romain Naour

Dear Romain Naour,

Quoted 22 lines · Romain Naour

As reported by Yann E. MORIN [1], the latest CS PowerPC toolchain (2012.03) requires a PPC CPU with SPE, which is basically two variants, 8540 (e500v1) and 8548 (e500v2) in Buildroot. All other PPC CPU can't use that toolchain.
Keep CS PowerPC 2011.03 as latest available version and add a second Kconfig symbol for the CS PowerPC 2012.03 since it's verry specific to one CPU type (e500v2).
Previously it was possible to select the CS 2012.03 with a powerpc 8540 (e500v1) CPU but the sysroot provided by the toolchain only support the 8548 (e500v2) variant. Allow to select CS 2012.03 only with BR2_powerpc_8548.
Also re-add the previous CS toolchain handling for pixman and liquid-dsp.
[1] http://lists.busybox.net/pipermail/buildroot/2015-December/148308.html
Reported-by "Yann E. MORIN" <[email protected]>
Signed-off-by Romain Naour <[email protected]>
Cc Gustavo Zacarias <[email protected]>
---
v2: Add a second Kconfig symbol for the CS PowerPC 2012.03 since it's verry specific
to one CPU type (e500v2)

Quoted 7 lines

---
 package/liquid-dsp/Config.in                       |  3 ++
 package/pixman/pixman.mk                           |  5 +++
 toolchain/toolchain-external/Config.in             | 42 +++++++++++++++++++---
 .../toolchain-external/toolchain-external.hash     |  1 +
 toolchain/toolchain-external/toolchain-external.mk |  5 ++-
 5 files changed, 51 insertions(+), 5 deletions(-)

Applied, thanks.

Thomas

Signature · 3 lines

Thomas Petazzoni, CTO, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com