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* [PATCH 0/4] ARC updates
@ 2021-01-15 20:03 Vineet Gupta
  2021-01-15 20:03 ` [PATCH 1/4] ARC: Add support for generic HS48 processor Vineet Gupta
                   ` (4 more replies)
  0 siblings, 5 replies; 9+ messages in thread
From: Vineet Gupta @ 2021-01-15 20:03 UTC (permalink / raw)
  To: buildroot; +Cc: Evgeniy.Didin, linux-snps-arc, Vineet Gupta, Alexey.Brodkin

Hi,

PFA assorted ARC changes. Main being a hw config for -mcpu=hs4x which
schedules code for HS48x dual issue pipeline.

Thx,
-Vineet

Vineet Gupta (4):
  ARC: Add support for generic HS48 processor
  configs/snps_archs38_hsdk_defconfig: refresh defconfig
  configs/snps_archs38_hsdk_defconfig: switch to glibc hard-float
  configs/snps_archs38_hsdk_defconfig: update for better out-of-box
    experience

 arch/Config.in.arc                  | 16 +++++++++----
 configs/snps_archs38_hsdk_defconfig | 36 +++++++++++++++--------------
 2 files changed, 30 insertions(+), 22 deletions(-)

-- 
2.25.1


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^ permalink raw reply	[flat|nested] 9+ messages in thread
* [PATCH 1/4] ARC: Add support for generic HS48 processor
  2021-01-15 20:03 [PATCH 0/4] ARC updates Vineet Gupta
@ 2021-01-15 20:03 ` Vineet Gupta
  2021-01-16 15:35   ` [Buildroot] " Yann E. MORIN
  2021-01-15 20:03 ` [PATCH 2/4] configs/snps_archs38_hsdk_defconfig: refresh defconfig Vineet Gupta
                   ` (3 subsequent siblings)
  4 siblings, 1 reply; 9+ messages in thread
From: Vineet Gupta @ 2021-01-15 20:03 UTC (permalink / raw)
  To: buildroot; +Cc: Evgeniy.Didin, linux-snps-arc, Vineet Gupta, Alexey.Brodkin

For the HS48 processor, BR currently builds with -mcpu=hs4x_rel31 which
generates suboptimal code as it inhibits delay slot and back-back ST and so on.

Enable a new variant to build with -mcpu=hs4x for normal codegen.

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
---
 arch/Config.in.arc | 16 +++++++++++-----
 1 file changed, 11 insertions(+), 5 deletions(-)

diff --git a/arch/Config.in.arc b/arch/Config.in.arc
index fdfafda31c72..259d6f3ab8b9 100644
--- a/arch/Config.in.arc
+++ b/arch/Config.in.arc
@@ -39,9 +39,14 @@ config BR2_archs38_full
 
 config BR2_archs4x_rel31
 	bool "ARC HS48 rel 31"
+	help
+	   Build for HS48 release 3.1
+
+config BR2_archs4x
+	bool "ARC HS48"
 	help
 	   Latest release of HS48 processor
-	   - Dual- and quad multiply and MC oprations
+	   - Dual and Quad multiply and MAC operations
 	   - Double-precision FPU
 
 endchoice
@@ -49,7 +54,7 @@ endchoice
 # Choice of atomic instructions presence
 config BR2_ARC_ATOMIC_EXT
 	bool "Atomic extension (LLOCK/SCOND instructions)"
-	default y if BR2_arc770d || BR2_archs38 || BR2_archs38_64mpy || BR2_archs38_full || BR2_archs4x_rel31
+	default y if BR2_arc770d || BR2_archs38 || BR2_archs38_64mpy || BR2_archs38_full || BR2_archs4x_rel31 || BR2_archs4x
 
 config BR2_ARCH
 	default "arc"	if BR2_arcle
@@ -70,10 +75,11 @@ config BR2_GCC_TARGET_CPU
 	default "hs38"	 if BR2_archs38_64mpy
 	default "hs38_linux"	 if BR2_archs38_full
 	default "hs4x_rel31"	 if BR2_archs4x_rel31
+	default "hs4x"	 if BR2_archs4x
 
 config BR2_READELF_ARCH_NAME
 	default "ARCompact"	if BR2_arc750d || BR2_arc770d
-	default "ARCv2"		if BR2_archs38 || BR2_archs38_64mpy || BR2_archs38_full || BR2_archs4x_rel31
+	default "ARCv2"		if BR2_archs38 || BR2_archs38_64mpy || BR2_archs38_full || BR2_archs4x_rel31 || BR2_archs4x
 
 choice
 	prompt "MMU Page Size"
@@ -93,7 +99,7 @@ choice
 
 config BR2_ARC_PAGE_SIZE_4K
 	bool "4KB"
-	depends on BR2_arc770d || BR2_archs38 || BR2_archs38_64mpy || BR2_archs38_full || BR2_archs4x_rel31
+	depends on BR2_arc770d || BR2_archs38 || BR2_archs38_64mpy || BR2_archs38_full || BR2_archs4x_rel31 || BR2_archs4x
 
 config BR2_ARC_PAGE_SIZE_8K
 	bool "8KB"
@@ -103,7 +109,7 @@ config BR2_ARC_PAGE_SIZE_8K
 
 config BR2_ARC_PAGE_SIZE_16K
 	bool "16KB"
-	depends on BR2_arc770d || BR2_archs38 || BR2_archs38_64mpy || BR2_archs38_full || BR2_archs4x_rel31
+	depends on BR2_arc770d || BR2_archs38 || BR2_archs38_64mpy || BR2_archs38_full || BR2_archs4x_rel31 || BR2_archs4x
 
 endchoice
 
-- 
2.25.1


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^ permalink raw reply related	[flat|nested] 9+ messages in thread
* [PATCH 2/4] configs/snps_archs38_hsdk_defconfig: refresh defconfig
  2021-01-15 20:03 [PATCH 0/4] ARC updates Vineet Gupta
  2021-01-15 20:03 ` [PATCH 1/4] ARC: Add support for generic HS48 processor Vineet Gupta
@ 2021-01-15 20:03 ` Vineet Gupta
  2021-01-15 20:03 ` [PATCH 3/4] configs/snps_archs38_hsdk_defconfig: switch to glibc hard-float Vineet Gupta
                   ` (2 subsequent siblings)
  4 siblings, 0 replies; 9+ messages in thread
From: Vineet Gupta @ 2021-01-15 20:03 UTC (permalink / raw)
  To: buildroot; +Cc: Evgeniy.Didin, linux-snps-arc, Vineet Gupta, Alexey.Brodkin

No config changes done

| make snps_archs38_hsdk_defconfig
| make savedefconfig

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
---
 configs/snps_archs38_hsdk_defconfig | 22 +++++-----------------
 1 file changed, 5 insertions(+), 17 deletions(-)

diff --git a/configs/snps_archs38_hsdk_defconfig b/configs/snps_archs38_hsdk_defconfig
index 9a9d57b32589..b8fd35636000 100644
--- a/configs/snps_archs38_hsdk_defconfig
+++ b/configs/snps_archs38_hsdk_defconfig
@@ -1,33 +1,19 @@
-# Architecture
 BR2_arcle=y
 BR2_archs38_full=y
-
-# Linux headers same as kernel, a 5.6 series
 BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_5_6=y
-
-# System
 BR2_TARGET_GENERIC_HOSTNAME="hsdk"
 BR2_TARGET_GENERIC_ISSUE="Welcome to the HSDK Platform"
 BR2_SYSTEM_DHCP="eth0"
-
-# Kernel
+BR2_ROOTFS_POST_IMAGE_SCRIPT="support/scripts/genimage.sh"
+BR2_ROOTFS_POST_SCRIPT_ARGS="-c board/synopsys/hsdk/genimage.cfg"
 BR2_LINUX_KERNEL=y
 BR2_LINUX_KERNEL_CUSTOM_VERSION=y
 BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="5.6.3"
 BR2_LINUX_KERNEL_DEFCONFIG="hsdk"
 BR2_LINUX_KERNEL_CONFIG_FRAGMENT_FILES="board/synopsys/hsdk/linux.fragment"
-
-# Filesystem / image
 BR2_TARGET_ROOTFS_EXT2=y
 BR2_TARGET_ROOTFS_EXT2_4=y
 # BR2_TARGET_ROOTFS_TAR is not set
-BR2_PACKAGE_HOST_DOSFSTOOLS=y
-BR2_PACKAGE_HOST_GENIMAGE=y
-BR2_PACKAGE_HOST_MTOOLS=y
-BR2_ROOTFS_POST_IMAGE_SCRIPT="support/scripts/genimage.sh"
-BR2_ROOTFS_POST_SCRIPT_ARGS="-c board/synopsys/hsdk/genimage.cfg"
-
-# Bootloader
 BR2_TARGET_UBOOT=y
 BR2_TARGET_UBOOT_BUILD_SYSTEM_KCONFIG=y
 BR2_TARGET_UBOOT_CUSTOM_VERSION=y
@@ -35,7 +21,9 @@ BR2_TARGET_UBOOT_CUSTOM_VERSION_VALUE="2018.05"
 BR2_TARGET_UBOOT_BOARD_DEFCONFIG="hsdk"
 BR2_TARGET_UBOOT_NEEDS_DTC=y
 BR2_TARGET_UBOOT_FORMAT_ELF=y
-BR2_PACKAGE_HOST_UBOOT_TOOLS=y
+BR2_PACKAGE_HOST_DOSFSTOOLS=y
+BR2_PACKAGE_HOST_GENIMAGE=y
+BR2_PACKAGE_HOST_MTOOLS=y
 BR2_PACKAGE_HOST_UBOOT_TOOLS_ENVIMAGE=y
 BR2_PACKAGE_HOST_UBOOT_TOOLS_ENVIMAGE_SOURCE="board/synopsys/hsdk/uboot.env.txt"
 BR2_PACKAGE_HOST_UBOOT_TOOLS_ENVIMAGE_SIZE="0x4000"
-- 
2.25.1


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^ permalink raw reply related	[flat|nested] 9+ messages in thread
* [PATCH 3/4] configs/snps_archs38_hsdk_defconfig: switch to glibc hard-float
  2021-01-15 20:03 [PATCH 0/4] ARC updates Vineet Gupta
  2021-01-15 20:03 ` [PATCH 1/4] ARC: Add support for generic HS48 processor Vineet Gupta
  2021-01-15 20:03 ` [PATCH 2/4] configs/snps_archs38_hsdk_defconfig: refresh defconfig Vineet Gupta
@ 2021-01-15 20:03 ` Vineet Gupta
  2021-01-16 15:37   ` [Buildroot] " Yann E. MORIN
  2021-01-15 20:03 ` [PATCH 4/4] configs/snps_archs38_hsdk_defconfig: update for better out-of-box experience Vineet Gupta
  2021-01-16 15:29 ` [Buildroot] [PATCH 0/4] ARC updates Yann E. MORIN
  4 siblings, 1 reply; 9+ messages in thread
From: Vineet Gupta @ 2021-01-15 20:03 UTC (permalink / raw)
  To: buildroot; +Cc: Evgeniy.Didin, linux-snps-arc, Vineet Gupta, Alexey.Brodkin

We are no longer actively working on uClibc and hard-float support is
pretty stable, so make that default for HSDK boards

The hard-float setting is a bit convulated since current ARC gcc lacks
--with-fpu - so this is done with BR2_TARGET_OPTIMIZATION

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
---
 configs/snps_archs38_hsdk_defconfig | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/configs/snps_archs38_hsdk_defconfig b/configs/snps_archs38_hsdk_defconfig
index b8fd35636000..69d0b1936b3a 100644
--- a/configs/snps_archs38_hsdk_defconfig
+++ b/configs/snps_archs38_hsdk_defconfig
@@ -1,6 +1,9 @@
 BR2_arcle=y
 BR2_archs38_full=y
+BR2_TOOLCHAIN_BUILDROOT_GLIBC=y
 BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_5_6=y
+BR2_PACKAGE_GLIBC_UTILS=y
+BR2_TARGET_OPTIMIZATION="-mfpu=fpud_all"
 BR2_TARGET_GENERIC_HOSTNAME="hsdk"
 BR2_TARGET_GENERIC_ISSUE="Welcome to the HSDK Platform"
 BR2_SYSTEM_DHCP="eth0"
-- 
2.25.1


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^ permalink raw reply related	[flat|nested] 9+ messages in thread
* [PATCH 4/4] configs/snps_archs38_hsdk_defconfig: update for better out-of-box experience
  2021-01-15 20:03 [PATCH 0/4] ARC updates Vineet Gupta
                   ` (2 preceding siblings ...)
  2021-01-15 20:03 ` [PATCH 3/4] configs/snps_archs38_hsdk_defconfig: switch to glibc hard-float Vineet Gupta
@ 2021-01-15 20:03 ` Vineet Gupta
  2021-01-16 15:40   ` [Buildroot] " Yann E. MORIN
  2021-01-16 15:29 ` [Buildroot] [PATCH 0/4] ARC updates Yann E. MORIN
  4 siblings, 1 reply; 9+ messages in thread
From: Vineet Gupta @ 2021-01-15 20:03 UTC (permalink / raw)
  To: buildroot; +Cc: Evgeniy.Didin, linux-snps-arc, Vineet Gupta, Alexey.Brodkin

 - Enable C++ support
 - Don't strip executables
 - Add minimal debug symbols
 - Enable strace and openssh
 - Enable perf (and elfutils)

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
---
 configs/snps_archs38_hsdk_defconfig | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/configs/snps_archs38_hsdk_defconfig b/configs/snps_archs38_hsdk_defconfig
index 69d0b1936b3a..7d406a90ed3c 100644
--- a/configs/snps_archs38_hsdk_defconfig
+++ b/configs/snps_archs38_hsdk_defconfig
@@ -1,8 +1,12 @@
 BR2_arcle=y
 BR2_archs38_full=y
+BR2_ENABLE_DEBUG=y
+BR2_DEBUG_1=y
+# BR2_STRIP_strip is not set
 BR2_TOOLCHAIN_BUILDROOT_GLIBC=y
 BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_5_6=y
 BR2_PACKAGE_GLIBC_UTILS=y
+BR2_TOOLCHAIN_BUILDROOT_CXX=y
 BR2_TARGET_OPTIMIZATION="-mfpu=fpud_all"
 BR2_TARGET_GENERIC_HOSTNAME="hsdk"
 BR2_TARGET_GENERIC_ISSUE="Welcome to the HSDK Platform"
@@ -14,8 +18,15 @@ BR2_LINUX_KERNEL_CUSTOM_VERSION=y
 BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="5.6.3"
 BR2_LINUX_KERNEL_DEFCONFIG="hsdk"
 BR2_LINUX_KERNEL_CONFIG_FRAGMENT_FILES="board/synopsys/hsdk/linux.fragment"
+BR2_PACKAGE_LINUX_TOOLS_PERF=y
+BR2_PACKAGE_STRACE=y
+BR2_PACKAGE_MAKE=y
+BR2_PACKAGE_ELFUTILS=y
+BR2_PACKAGE_ELFUTILS_PROGS=y
+BR2_PACKAGE_OPENSSH=y
 BR2_TARGET_ROOTFS_EXT2=y
 BR2_TARGET_ROOTFS_EXT2_4=y
+BR2_TARGET_ROOTFS_EXT2_SIZE="200M"
 # BR2_TARGET_ROOTFS_TAR is not set
 BR2_TARGET_UBOOT=y
 BR2_TARGET_UBOOT_BUILD_SYSTEM_KCONFIG=y
-- 
2.25.1


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^ permalink raw reply related	[flat|nested] 9+ messages in thread
* Re: [Buildroot] [PATCH 0/4] ARC updates
  2021-01-15 20:03 [PATCH 0/4] ARC updates Vineet Gupta
                   ` (3 preceding siblings ...)
  2021-01-15 20:03 ` [PATCH 4/4] configs/snps_archs38_hsdk_defconfig: update for better out-of-box experience Vineet Gupta
@ 2021-01-16 15:29 ` Yann E. MORIN
  4 siblings, 0 replies; 9+ messages in thread
From: Yann E. MORIN @ 2021-01-16 15:29 UTC (permalink / raw)
  To: Vineet Gupta; +Cc: buildroot, Evgeniy.Didin, linux-snps-arc, Alexey.Brodkin

Vineet, All,

On 2021-01-15 12:03 -0800, Vineet Gupta spake thusly:
> PFA assorted ARC changes. Main being a hw config for -mcpu=hs4x which
> schedules code for HS48x dual issue pipeline.

Series applied to master, thanks!

I have however done a bit of changes, so I will reply individually to
affected patches.

Regards,
Yann E. MORIN.

> Thx,
> -Vineet
> 
> Vineet Gupta (4):
>   ARC: Add support for generic HS48 processor
>   configs/snps_archs38_hsdk_defconfig: refresh defconfig
>   configs/snps_archs38_hsdk_defconfig: switch to glibc hard-float
>   configs/snps_archs38_hsdk_defconfig: update for better out-of-box
>     experience
> 
>  arch/Config.in.arc                  | 16 +++++++++----
>  configs/snps_archs38_hsdk_defconfig | 36 +++++++++++++++--------------
>  2 files changed, 30 insertions(+), 22 deletions(-)
> 
> -- 
> 2.25.1
> 
> _______________________________________________
> buildroot mailing list
> buildroot@busybox.net
> http://lists.busybox.net/mailman/listinfo/buildroot

-- 
.-----------------.--------------------.------------------.--------------------.
|  Yann E. MORIN  | Real-Time Embedded | /"\ ASCII RIBBON | Erics' conspiracy: |
| +33 662 376 056 | Software  Designer | \ / CAMPAIGN     |  ___               |
| +33 561 099 427 `------------.-------:  X  AGAINST      |  \e/  There is no  |
| http://ymorin.is-a-geek.org/ | _/*\_ | / \ HTML MAIL    |   v   conspiracy.  |
'------------------------------^-------^------------------^--------------------'

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^ permalink raw reply	[flat|nested] 9+ messages in thread
* Re: [Buildroot] [PATCH 1/4] ARC: Add support for generic HS48 processor
  2021-01-15 20:03 ` [PATCH 1/4] ARC: Add support for generic HS48 processor Vineet Gupta
@ 2021-01-16 15:35   ` Yann E. MORIN
  0 siblings, 0 replies; 9+ messages in thread
From: Yann E. MORIN @ 2021-01-16 15:35 UTC (permalink / raw)
  To: Vineet Gupta; +Cc: buildroot, Evgeniy.Didin, linux-snps-arc, Alexey.Brodkin

Vineet, All,

On 2021-01-15 12:03 -0800, Vineet Gupta spake thusly:
> For the HS48 processor, BR currently builds with -mcpu=hs4x_rel31 which
> generates suboptimal code as it inhibits delay slot and back-back ST and so on.
> 
> Enable a new variant to build with -mcpu=hs4x for normal codegen.
> 
> Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
> ---
>  arch/Config.in.arc | 16 +++++++++++-----
>  1 file changed, 11 insertions(+), 5 deletions(-)
> 
> diff --git a/arch/Config.in.arc b/arch/Config.in.arc
> index fdfafda31c72..259d6f3ab8b9 100644
> --- a/arch/Config.in.arc
> +++ b/arch/Config.in.arc
> @@ -39,9 +39,14 @@ config BR2_archs38_full
>  
>  config BR2_archs4x_rel31
>  	bool "ARC HS48 rel 31"
> +	help
> +	   Build for HS48 release 3.1
> +
> +config BR2_archs4x
> +	bool "ARC HS48"
>  	help
>  	   Latest release of HS48 processor
> -	   - Dual- and quad multiply and MC oprations
> +	   - Dual and Quad multiply and MAC operations
>  	   - Double-precision FPU
>  
>  endchoice
> @@ -49,7 +54,7 @@ endchoice
>  # Choice of atomic instructions presence
>  config BR2_ARC_ATOMIC_EXT
>  	bool "Atomic extension (LLOCK/SCOND instructions)"
> -	default y if BR2_arc770d || BR2_archs38 || BR2_archs38_64mpy || BR2_archs38_full || BR2_archs4x_rel31
> +	default y if BR2_arc770d || BR2_archs38 || BR2_archs38_64mpy || BR2_archs38_full || BR2_archs4x_rel31 || BR2_archs4x

Those started to be rather long lines, so I split them.

>  config BR2_ARCH
>  	default "arc"	if BR2_arcle
> @@ -70,10 +75,11 @@ config BR2_GCC_TARGET_CPU
>  	default "hs38"	 if BR2_archs38_64mpy
>  	default "hs38_linux"	 if BR2_archs38_full
>  	default "hs4x_rel31"	 if BR2_archs4x_rel31
> +	default "hs4x"	 if BR2_archs4x
>  
>  config BR2_READELF_ARCH_NAME
>  	default "ARCompact"	if BR2_arc750d || BR2_arc770d
> -	default "ARCv2"		if BR2_archs38 || BR2_archs38_64mpy || BR2_archs38_full || BR2_archs4x_rel31
> +	default "ARCv2"		if BR2_archs38 || BR2_archs38_64mpy || BR2_archs38_full || BR2_archs4x_rel31 || BR2_archs4x

Ditto.

>  choice
>  	prompt "MMU Page Size"
> @@ -93,7 +99,7 @@ choice
>  
>  config BR2_ARC_PAGE_SIZE_4K
>  	bool "4KB"
> -	depends on BR2_arc770d || BR2_archs38 || BR2_archs38_64mpy || BR2_archs38_full || BR2_archs4x_rel31
> +	depends on BR2_arc770d || BR2_archs38 || BR2_archs38_64mpy || BR2_archs38_full || BR2_archs4x_rel31 || BR2_archs4x

In fact, the only variant that does not have 4K pages is 750d, so I
inverted the logic to:

    depends on !BR2_arc750d

So the lines are not too long anymore.

If the situation becones more complex than that, then we could introduce
intermediate symbols, like;

    config BR2_ARC_HAS_4K_PAGES
        bool

which could then be selected by the variants that do have it, e.g.:

    config BR2_archs4x
        bool "ARC HS48"
        select BR2_ARC_HAS_4K_PAGES

and then the 4K choice would depend on it;

    config BR2_ARC_PAGE_SIZE_4K
        bool "4KB"
        depends on BR2_ARC_HAS_4K_PAGES

I was about to do that, but if 750d is definitely the only variant to
not support those 4K or 16K pages, this would be overkill...

>  config BR2_ARC_PAGE_SIZE_8K
>  	bool "8KB"
> @@ -103,7 +109,7 @@ config BR2_ARC_PAGE_SIZE_8K
>  
>  config BR2_ARC_PAGE_SIZE_16K
>  	bool "16KB"
> -	depends on BR2_arc770d || BR2_archs38 || BR2_archs38_64mpy || BR2_archs38_full || BR2_archs4x_rel31
> +	depends on BR2_arc770d || BR2_archs38 || BR2_archs38_64mpy || BR2_archs38_full || BR2_archs4x_rel31 || BR2_archs4x

Ditto.

Regards,
Yann E. MORIN.

>  endchoice
>  
> -- 
> 2.25.1
> 
> _______________________________________________
> buildroot mailing list
> buildroot@busybox.net
> http://lists.busybox.net/mailman/listinfo/buildroot

-- 
.-----------------.--------------------.------------------.--------------------.
|  Yann E. MORIN  | Real-Time Embedded | /"\ ASCII RIBBON | Erics' conspiracy: |
| +33 662 376 056 | Software  Designer | \ / CAMPAIGN     |  ___               |
| +33 561 099 427 `------------.-------:  X  AGAINST      |  \e/  There is no  |
| http://ymorin.is-a-geek.org/ | _/*\_ | / \ HTML MAIL    |   v   conspiracy.  |
'------------------------------^-------^------------------^--------------------'

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^ permalink raw reply	[flat|nested] 9+ messages in thread
* Re: [Buildroot] [PATCH 3/4] configs/snps_archs38_hsdk_defconfig: switch to glibc hard-float
  2021-01-15 20:03 ` [PATCH 3/4] configs/snps_archs38_hsdk_defconfig: switch to glibc hard-float Vineet Gupta
@ 2021-01-16 15:37   ` Yann E. MORIN
  0 siblings, 0 replies; 9+ messages in thread
From: Yann E. MORIN @ 2021-01-16 15:37 UTC (permalink / raw)
  To: Vineet Gupta; +Cc: buildroot, Evgeniy.Didin, linux-snps-arc, Alexey.Brodkin

Vineet, All,

On 2021-01-15 12:03 -0800, Vineet Gupta spake thusly:
> We are no longer actively working on uClibc and hard-float support is
> pretty stable, so make that default for HSDK boards
> 
> The hard-float setting is a bit convulated since current ARC gcc lacks
> --with-fpu - so this is done with BR2_TARGET_OPTIMIZATION
> 
> Signed-off-by: Vineet Gupta <vgupta@synopsys.com>

I split that patch in two:
  - one commit to switch to glibc,
  - one commit to enable hard-float

Since the hard-float, as you noticed, is using a non-conventional way to
passit, so if it truns out to be causing issues, it is easier to revert
if it is in a commit of its own.

Regards,
Yann E. MORIN.

> ---
>  configs/snps_archs38_hsdk_defconfig | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/configs/snps_archs38_hsdk_defconfig b/configs/snps_archs38_hsdk_defconfig
> index b8fd35636000..69d0b1936b3a 100644
> --- a/configs/snps_archs38_hsdk_defconfig
> +++ b/configs/snps_archs38_hsdk_defconfig
> @@ -1,6 +1,9 @@
>  BR2_arcle=y
>  BR2_archs38_full=y
> +BR2_TOOLCHAIN_BUILDROOT_GLIBC=y
>  BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_5_6=y
> +BR2_PACKAGE_GLIBC_UTILS=y
> +BR2_TARGET_OPTIMIZATION="-mfpu=fpud_all"
>  BR2_TARGET_GENERIC_HOSTNAME="hsdk"
>  BR2_TARGET_GENERIC_ISSUE="Welcome to the HSDK Platform"
>  BR2_SYSTEM_DHCP="eth0"
> -- 
> 2.25.1
> 
> _______________________________________________
> buildroot mailing list
> buildroot@busybox.net
> http://lists.busybox.net/mailman/listinfo/buildroot

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| +33 662 376 056 | Software  Designer | \ / CAMPAIGN     |  ___               |
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^ permalink raw reply	[flat|nested] 9+ messages in thread
* Re: [Buildroot] [PATCH 4/4] configs/snps_archs38_hsdk_defconfig: update for better out-of-box experience
  2021-01-15 20:03 ` [PATCH 4/4] configs/snps_archs38_hsdk_defconfig: update for better out-of-box experience Vineet Gupta
@ 2021-01-16 15:40   ` Yann E. MORIN
  0 siblings, 0 replies; 9+ messages in thread
From: Yann E. MORIN @ 2021-01-16 15:40 UTC (permalink / raw)
  To: Vineet Gupta; +Cc: buildroot, Evgeniy.Didin, linux-snps-arc, Alexey.Brodkin

Vineet, All,

On 2021-01-15 12:03 -0800, Vineet Gupta spake thusly:
>  - Enable C++ support
>  - Don't strip executables
>  - Add minimal debug symbols
>  - Enable strace and openssh
>  - Enable perf (and elfutils)

Of all those, I only kept adding C++.

None of the other defconfigs enable debug, or disable stripping.

Also, we like our defconfigs to truly be minimal. We could however
accept an additional defconfig with more packages, as a "demo" of sorts,
though. But the selection of packages you added is not kind of "demoing"
that specific board...

So, I just kept C++.

Thanks!

Regards,
Yann E. MORIN.

> Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
> ---
>  configs/snps_archs38_hsdk_defconfig | 11 +++++++++++
>  1 file changed, 11 insertions(+)
> 
> diff --git a/configs/snps_archs38_hsdk_defconfig b/configs/snps_archs38_hsdk_defconfig
> index 69d0b1936b3a..7d406a90ed3c 100644
> --- a/configs/snps_archs38_hsdk_defconfig
> +++ b/configs/snps_archs38_hsdk_defconfig
> @@ -1,8 +1,12 @@
>  BR2_arcle=y
>  BR2_archs38_full=y
> +BR2_ENABLE_DEBUG=y
> +BR2_DEBUG_1=y
> +# BR2_STRIP_strip is not set
>  BR2_TOOLCHAIN_BUILDROOT_GLIBC=y
>  BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_5_6=y
>  BR2_PACKAGE_GLIBC_UTILS=y
> +BR2_TOOLCHAIN_BUILDROOT_CXX=y
>  BR2_TARGET_OPTIMIZATION="-mfpu=fpud_all"
>  BR2_TARGET_GENERIC_HOSTNAME="hsdk"
>  BR2_TARGET_GENERIC_ISSUE="Welcome to the HSDK Platform"
> @@ -14,8 +18,15 @@ BR2_LINUX_KERNEL_CUSTOM_VERSION=y
>  BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="5.6.3"
>  BR2_LINUX_KERNEL_DEFCONFIG="hsdk"
>  BR2_LINUX_KERNEL_CONFIG_FRAGMENT_FILES="board/synopsys/hsdk/linux.fragment"
> +BR2_PACKAGE_LINUX_TOOLS_PERF=y
> +BR2_PACKAGE_STRACE=y
> +BR2_PACKAGE_MAKE=y
> +BR2_PACKAGE_ELFUTILS=y
> +BR2_PACKAGE_ELFUTILS_PROGS=y
> +BR2_PACKAGE_OPENSSH=y
>  BR2_TARGET_ROOTFS_EXT2=y
>  BR2_TARGET_ROOTFS_EXT2_4=y
> +BR2_TARGET_ROOTFS_EXT2_SIZE="200M"
>  # BR2_TARGET_ROOTFS_TAR is not set
>  BR2_TARGET_UBOOT=y
>  BR2_TARGET_UBOOT_BUILD_SYSTEM_KCONFIG=y
> -- 
> 2.25.1
> 
> _______________________________________________
> buildroot mailing list
> buildroot@busybox.net
> http://lists.busybox.net/mailman/listinfo/buildroot

-- 
.-----------------.--------------------.------------------.--------------------.
|  Yann E. MORIN  | Real-Time Embedded | /"\ ASCII RIBBON | Erics' conspiracy: |
| +33 662 376 056 | Software  Designer | \ / CAMPAIGN     |  ___               |
| +33 561 099 427 `------------.-------:  X  AGAINST      |  \e/  There is no  |
| http://ymorin.is-a-geek.org/ | _/*\_ | / \ HTML MAIL    |   v   conspiracy.  |
'------------------------------^-------^------------------^--------------------'

_______________________________________________
linux-snps-arc mailing list
linux-snps-arc@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-snps-arc

^ permalink raw reply	[flat|nested] 9+ messages in thread
end of thread, other threads:[~2021-01-16 15:40 UTC | newest]

Thread overview: 9+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-01-15 20:03 [PATCH 0/4] ARC updates Vineet Gupta
2021-01-15 20:03 ` [PATCH 1/4] ARC: Add support for generic HS48 processor Vineet Gupta
2021-01-16 15:35   ` [Buildroot] " Yann E. MORIN
2021-01-15 20:03 ` [PATCH 2/4] configs/snps_archs38_hsdk_defconfig: refresh defconfig Vineet Gupta
2021-01-15 20:03 ` [PATCH 3/4] configs/snps_archs38_hsdk_defconfig: switch to glibc hard-float Vineet Gupta
2021-01-16 15:37   ` [Buildroot] " Yann E. MORIN
2021-01-15 20:03 ` [PATCH 4/4] configs/snps_archs38_hsdk_defconfig: update for better out-of-box experience Vineet Gupta
2021-01-16 15:40   ` [Buildroot] " Yann E. MORIN
2021-01-16 15:29 ` [Buildroot] [PATCH 0/4] ARC updates Yann E. MORIN

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