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arm64: Widen hwcap to be 64 bit

Under arm64 elf_hwcap is a 32 bit quantity, but it is stored in
a 64 bit auxiliary ELF field and glibc reads hwcap as 64 bit.

This patch widens elf_hwcap to be 64 bit.

Signed-off-by: Steve Capper <steve.capper@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
master
Steve Capper 8 years ago
committed by Catalin Marinas
parent
commit
25804e6a96
  1. 2
      arch/arm64/include/asm/hwcap.h
  2. 2
      arch/arm64/kernel/setup.c

2
arch/arm64/include/asm/hwcap.h

@ -43,6 +43,6 @@
COMPAT_HWCAP_VFPv3|COMPAT_HWCAP_VFPv4|\
COMPAT_HWCAP_NEON|COMPAT_HWCAP_IDIV)
extern unsigned int elf_hwcap;
extern unsigned long elf_hwcap;
#endif
#endif

2
arch/arm64/kernel/setup.c

@ -57,7 +57,7 @@
unsigned int processor_id;
EXPORT_SYMBOL(processor_id);
unsigned int elf_hwcap __read_mostly;
unsigned long elf_hwcap __read_mostly;
EXPORT_SYMBOL_GPL(elf_hwcap);
static const char *cpu_name;

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