Commit 761b9b36 authored by Catalin Marinas's avatar Catalin Marinas Committed by Will Deacon

elf: Introduce the ARM MTE ELF segment type

Memory tags will be dumped in the core file as segments with their own
type. Discussions with the binutils and the generic ABI community
settled on using new definitions in the PT_*PROC space (and to be
documented in the processor-specific ABIs).

Introduce PT_ARM_MEMTAG_MTE as (PT_LOPROC + 0x1). Not included in this
patch since there is no upstream support but the CHERI/BSD community
will also reserve:

  #define PT_ARM_MEMTAG_CHERI    (PT_LOPROC + 0x2)
  #define PT_RISCV_MEMTAG_CHERI  (PT_LOPROC + 0x3)
Signed-off-by: default avatarCatalin Marinas <catalin.marinas@arm.com>
Acked-by: default avatarLuis Machado <luis.machado@linaro.org>
Link: https://lore.kernel.org/r/20220131165456.2160675-3-catalin.marinas@arm.comSigned-off-by: default avatarWill Deacon <will@kernel.org>
parent b62a8486
......@@ -40,6 +40,9 @@ typedef __s64 Elf64_Sxword;
#define PT_GNU_STACK (PT_LOOS + 0x474e551)
/* ARM MTE memory tag segment type */
#define PT_ARM_MEMTAG_MTE (PT_LOPROC + 0x1)
/*
* Extended Numbering
*
......
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