On 6/10/19 10:20 PM, Christoph Hellwig wrote:
Use the generic support with arguments are on the stack. Same as arm
and m68k.
Out of curiosity, what is reason for keeping arguments on the stack?
ARM port of uClibc has following comment around manipulating of argv/argc:
/*
* uClinux/arm stacks look a little different from normal
* MMU-full Linux/arm stacks (for no good reason)
*/
So I though it is kind of legacy.
Thanks
Vladimir
Signed-off-by: Christoph Hellwig <hch@xxxxxx>
---
arch/riscv/Kconfig | 2 ++
arch/riscv/include/asm/Kbuild | 1 +
2 files changed, 3 insertions(+)
diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
index 0c4b12205632..2e3b60cdeef4 100644
--- a/arch/riscv/Kconfig
+++ b/arch/riscv/Kconfig
@@ -17,7 +17,9 @@ config RISCV
select OF
select OF_EARLY_FLATTREE
select OF_IRQ
+ select ARCH_HAS_BINFMT_FLAT
select ARCH_WANT_FRAME_POINTERS
+ select BINFMT_FLAT_ARGVP_ENVP_ON_STACK
select CLONE_BACKWARDS
select COMMON_CLK
select GENERIC_CLOCKEVENTS
diff --git a/arch/riscv/include/asm/Kbuild b/arch/riscv/include/asm/Kbuild
index 5ee646619cc3..1efaeddf1e4b 100644
--- a/arch/riscv/include/asm/Kbuild
+++ b/arch/riscv/include/asm/Kbuild
@@ -5,6 +5,7 @@ generic-y += compat.h
generic-y += device.h
generic-y += div64.h
generic-y += extable.h
+generic-y += flat.h
generic-y += dma.h
generic-y += dma-contiguous.h
generic-y += dma-mapping.h
