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gcc 4.8.x does not compile a working kernel for sparc

PATCH Superseded Waldemar Brodkorb 3 participants 5 messages Jun 13, 2014 – Jun 14, 2014

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Waldemar Brodkorb

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#0 lore raw

PATCH v2 1/1 gcc 4.8.x does not compile a working kernel for sparc

Since the switch to 4.8.x as default, the qemu-sparc target is broken. For a gcc bug report see here:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60624

Switch back to gcc 4.7.x as default for sparc.
Disable 4.8/4.9 as suggested by Thomas Petazzoni.
I even disabled gcc snapshot, it works right now, because it is an old 4.8.0 snapshot by default, but as soon as this is updated sparc build will break.

Signed-off-by Waldemar Brodkorb <[email protected]>
---
 package/gcc/Config.in.host |    7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)
package/gcc/Config.in.host +4 -3
index 3bdfffc..309750c 100644
@@ -10,6 +10,7 @@ choice
 	prompt "GCC compiler Version"
 	default BR2_GCC_VERSION_4_4_X if BR2_sparc_sparchfleon || BR2_sparc_sparchfleonv8 || BR2_sparc_sparcsfleon || BR2_sparc_sparcsfleonv8
 	default BR2_GCC_VERSION_4_2_2_AVR32_2_1_5 if BR2_avr32
+	default BR2_GCC_VERSION_4_7_X if BR2_sparc
 	default BR2_GCC_VERSION_4_8_X if BR2_aarch64
 	default BR2_GCC_VERSION_4_8_ARC if BR2_arc
 	default BR2_GCC_VERSION_4_9_X if BR2_microblaze || BR2_powerpc64le

@@ -61,7 +62,7 @@ choice
 		bool "gcc 4.7.x"
 
 	config BR2_GCC_VERSION_4_8_X
-		depends on !BR2_microblaze && !BR2_arc && !BR2_avr32 && !BR2_bfin && !BR2_cortex_a12 && !BR2_sparc_sparchfleon && !BR2_sparc_sparchfleonv8 && !BR2_sparc_sparcsfleon && !BR2_sparc_sparcsfleonv8 && !BR2_powerpc64le
+		depends on !BR2_microblaze && !BR2_arc && !BR2_avr32 && !BR2_bfin && !BR2_cortex_a12 && !BR2_sparc_sparchfleon && !BR2_sparc_sparchfleonv8 && !BR2_sparc_sparcsfleon && !BR2_sparc_sparcsfleonv8 && !BR2_powerpc64le && !BR2_sparc
 		select BR2_GCC_NEEDS_MPC
 		select BR2_GCC_SUPPORTS_GRAPHITE
 		bool "gcc 4.8.x"

@@ -72,13 +73,13 @@ choice
 		bool "gcc 4.8-arc"
 
 	config BR2_GCC_VERSION_4_9_X
-		depends on !BR2_arc && !BR2_avr32 && !BR2_bfin && !BR2_sparc_sparchfleon && !BR2_sparc_sparchfleonv8 && !BR2_sparc_sparcsfleon && !BR2_sparc_sparcsfleonv8
+		depends on !BR2_arc && !BR2_avr32 && !BR2_bfin && !BR2_sparc_sparchfleon && !BR2_sparc_sparchfleonv8 && !BR2_sparc_sparcsfleon && !BR2_sparc_sparcsfleonv8 && !BR2_sparc
 		select BR2_GCC_NEEDS_MPC
 		select BR2_GCC_SUPPORTS_GRAPHITE
 		bool "gcc 4.9.x"
 
 	config BR2_GCC_VERSION_SNAP
-		depends on !BR2_arc && !BR2_avr32 && !BR2_sparc_sparchfleon && !BR2_sparc_sparchfleonv8 && !BR2_sparc_sparcsfleon && !BR2_sparc_sparcsfleonv8
+		depends on !BR2_arc && !BR2_avr32 && !BR2_sparc_sparchfleon && !BR2_sparc_sparchfleonv8 && !BR2_sparc_sparcsfleon && !BR2_sparc_sparcsfleonv8 && !BR2_sparc
 		select BR2_GCC_NEEDS_MPC
 		# musl patches only for gcc 4.7+
 		depends on !BR2_TOOLCHAIN_BUILDROOT_MUSL
Signature · 1 line
1.7.10.4
#1 lore raw

PATCH v2 1/1 gcc 4.8.x does not compile a working kernel for sparc

Quoted 6 lines
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"Waldemar" == Waldemar Brodkorb <[email protected]> writes:

Since the switch to 4.8.x as default, the qemu-sparc target is broken. For a gcc bug report see here:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60624

Quoted 7 lines

Switch back to gcc 4.7.x as default for sparc.
Disable 4.8/4.9 as suggested by Thomas Petazzoni.
I even disabled gcc snapshot, it works right now, because it is an old 4.8.0 snapshot by default, but as soon as this is updated sparc build will break.

Signed-off-by Waldemar Brodkorb <[email protected]>

Committed, thanks.

Signature · 1 line
Bye, Peter Korsgaard
#2 lore raw

PATCH v2 1/1 gcc 4.8.x does not compile a working kernel for sparc

In reply to Waldemar Brodkorb
Quoted 22 lines
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Quoted 1 line

"Waldemar" == Waldemar Brodkorb <[email protected]> writes:

Since the switch to 4.8.x as default, the qemu-sparc target is broken. For a gcc bug report see here:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60624

Switch back to gcc 4.7.x as default for sparc.
Disable 4.8/4.9 as suggested by Thomas Petazzoni.
I even disabled gcc snapshot, it works right now, because it is an old 4.8.0 snapshot by default, but as soon as this is updated sparc build will break.

Signed-off-by Waldemar Brodkorb <[email protected]>
---
 package/gcc/Config.in.host |    7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)
package/gcc/Config.in.host +0 -0
index 3bdfffc..309750c 100644

package/gcc/Config.in.host choice · line 13

Quoted 4 lines
package/gcc/Config.in.host +1 -0
@@ -10,6 +10,7 @@ choice
 	prompt "GCC compiler Version"
 	default BR2_GCC_VERSION_4_4_X if BR2_sparc_sparchfleon || BR2_sparc_sparchfleonv8 || BR2_sparc_sparcsfleon || BR2_sparc_sparcsfleonv8
 	default BR2_GCC_VERSION_4_2_2_AVR32_2_1_5 if BR2_avr32
+	default BR2_GCC_VERSION_4_7_X if BR2_sparc

On a related note, this was presumably for the v8 variant? Do you know if we still need to stick to gcc 4.4.x for the leon variants?

Signature · 1 line
Bye, Peter Korsgaard
author
#3 lore raw

PATCH v2 1/1 gcc 4.8.x does not compile a working kernel for sparc

Hi Peter,
Peter Korsgaard wrote,

Quoted 17 lines
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"Waldemar" == Waldemar Brodkorb <[email protected]> writes:

Since the switch to 4.8.x as default, the qemu-sparc target is broken. For a gcc bug report see here:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60624

Switch back to gcc 4.7.x as default for sparc.
Disable 4.8/4.9 as suggested by Thomas Petazzoni.
I even disabled gcc snapshot, it works right now, because it is an old 4.8.0 snapshot by default, but as soon as this is updated sparc build will break.

Signed-off-by Waldemar Brodkorb <[email protected]>
---
 package/gcc/Config.in.host |    7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)
Quoted 11 lines

package/gcc/Config.in.host choice · line 13

Quoted 9 lines
package/gcc/Config.in.host +1 -0
index 3bdfffc..309750c 100644
@@ -10,6 +10,7 @@ choice
 	prompt "GCC compiler Version"
 	default BR2_GCC_VERSION_4_4_X if BR2_sparc_sparchfleon || BR2_sparc_sparchfleonv8 || BR2_sparc_sparcsfleon || BR2_sparc_sparcsfleonv8
 	default BR2_GCC_VERSION_4_2_2_AVR32_2_1_5 if BR2_avr32
+	default BR2_GCC_VERSION_4_7_X if BR2_sparc

On a related note, this was presumably for the v8 variant?

Yes.

Quoted 2 lines

Do you know
if we still need to stick to gcc 4.4.x for the leon variants?

I have no idea. I asked about the price of a leon3 evaluation board in the past, but 1000 euro was to high for me. The simulators are non-free, so I could not try these. Do you have hardware or a license for leon simulators? Who has added support for these systems?

best regards
Waldemar

#4 lore raw

PATCH v2 1/1 gcc 4.8.x does not compile a working kernel for sparc

Dear Waldemar Brodkorb,

Quoted 5 lines · Waldemar Brodkorb

I have no idea. I asked about the price of a leon3 evaluation board in the past, but 1000 euro was to high for me. The simulators are non-free, so I could not try these. Do you have hardware or a license for leon simulators? Who has added support for these systems?

You should talk with Konrad Eisele <[email protected]>, who added the Leon Sparc support in Buildroot, and sent a couple of patches around this topic in the past.

Thanks!

Thomas

Signature · 3 lines
Thomas Petazzoni, CTO, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com