[Qemu-devel] [PATCH v2] linux-user: set minimum uname for RISC-V

[Qemu-devel] [PATCH v2] linux-user: set minimum uname for RISC-V

[Alex Bennée]

As support for RISC-V was only merged into the mainline kernel at 4.15
it is unlikely that glibc will be happy with a reported kernel version
of 3.8.0. Indeed when I testing binaries created by the current Debian
Sid compiler the tests failed with:

  FATAL: kernel too old

Bump the version to the minimum a RISC-V glibc would expect:

  https://sourceware.org/git/?p=glibc.git;a=blob;f=sysdeps/unix/sysv/linux/riscv/configure.ac

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Palmer Dabbelt <palmer@sifive.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>

---
v2
  - minor tweak to wording to make clearer and add link to glibc config
---
 linux-user/riscv/target_syscall.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/linux-user/riscv/target_syscall.h b/linux-user/riscv/target_syscall.h
index d4e109a27f..ee81d8bc88 100644
--- a/linux-user/riscv/target_syscall.h
+++ b/linux-user/riscv/target_syscall.h
@@ -45,7 +45,7 @@ struct target_pt_regs {
 #else
 #define UNAME_MACHINE "riscv64"
 #endif
-#define UNAME_MINIMUM_RELEASE "3.8.0"
+#define UNAME_MINIMUM_RELEASE "4.15.0"
 
 #define TARGET_MINSIGSTKSZ 2048
 #define TARGET_MLOCKALL_MCL_CURRENT 1
-- 
2.17.0

Re: [Qemu-devel] [PATCH v2] linux-user: set minimum uname for RISC-V

[Philippe Mathieu-Daudé]

On 04/25/2018 07:02 AM, Alex Bennée wrote:
> As support for RISC-V was only merged into the mainline kernel at 4.15
> it is unlikely that glibc will be happy with a reported kernel version
> of 3.8.0. Indeed when I testing binaries created by the current Debian
> Sid compiler the tests failed with:
> 
>   FATAL: kernel too old
> 
> Bump the version to the minimum a RISC-V glibc would expect:
> 
>   https://sourceware.org/git/?p=glibc.git;a=blob;f=sysdeps/unix/sysv/linux/riscv/configure.ac

This link point to the last version which might change over time, can we
use instead the full link Peter suggested?

https://sourceware.org/git/?p=glibc.git;a=blob;f=sysdeps/unix/sysv/linux/riscv/configure.ac;h=4fae013ec91451370a6d14b15b7e6d37fcd669af;hb=HEAD

> 
> Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
> Reviewed-by: Palmer Dabbelt <palmer@sifive.com>
> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>

Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>

> 
> ---
> v2
>   - minor tweak to wording to make clearer and add link to glibc config
> ---
>  linux-user/riscv/target_syscall.h | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/linux-user/riscv/target_syscall.h b/linux-user/riscv/target_syscall.h
> index d4e109a27f..ee81d8bc88 100644
> --- a/linux-user/riscv/target_syscall.h
> +++ b/linux-user/riscv/target_syscall.h
> @@ -45,7 +45,7 @@ struct target_pt_regs {
>  #else
>  #define UNAME_MACHINE "riscv64"
>  #endif
> -#define UNAME_MINIMUM_RELEASE "3.8.0"
> +#define UNAME_MINIMUM_RELEASE "4.15.0"
>  
>  #define TARGET_MINSIGSTKSZ 2048
>  #define TARGET_MLOCKALL_MCL_CURRENT 1
>