Re: [PATCH v3 23/27] x86/modules: Adapt module loading for PIE support

Randy Dunlap
2018-05-23T21:26:51Z

Hi,

(for several patches in this series:)
The commit message is confusing. See below.

On 05/23/2018 12:54 PM, Thomas Garnier wrote:
> Adapt module loading to support PIE relocations. Generate dynamic GOT if
> a symbol requires it but no entry exist in the kernel GOT.

exists

>
> Position Independent Executable (PIE) support will allow to extended the

will allow us to extend the

> KASLR randomization range below the -2G memory limit.

Does that say "below th negative 2G memory limit"?
I don't get it.

>
> Signed-off-by: Thomas Garnier <thgarnie@google.com>
> ---
> arch/x86/Makefile | 4 +
> arch/x86/include/asm/module.h | 11 ++
> arch/x86/include/asm/sections.h | 4 +
> arch/x86/kernel/module.c | 181 +++++++++++++++++++++++++++++++-
> arch/x86/kernel/module.lds | 3 +
> 5 files changed, 198 insertions(+), 5 deletions(-)
> create mode 100644 arch/x86/kernel/module.lds

Thanks,
--
~Randy