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| author | Ard Biesheuvel <ard.biesheuvel@linaro.org> | 2014-03-03 07:34:45 +0000 |
|---|---|---|
| committer | Catalin Marinas <catalin.marinas@arm.com> | 2014-03-04 08:05:59 +0000 |
| commit | 28964d32d495a0753986d464c48c8e1ae73699be (patch) | |
| tree | b1a098505b7bc1ae998cbdec31c9b0c15ffbd1a5 /arch/arm64 | |
| parent | 66d6e3b385778c2eef3b172a037235516207393e (diff) | |
| download | lwn-28964d32d495a0753986d464c48c8e1ae73699be.tar.gz lwn-28964d32d495a0753986d464c48c8e1ae73699be.zip | |
arm64: add AT_HWCAP2 support for 32-bit compat
Add support for the ELF auxv entry AT_HWCAP2 when running 32-bit
ELF binaries in compat mode.
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'arch/arm64')
| -rw-r--r-- | arch/arm64/include/asm/hwcap.h | 3 | ||||
| -rw-r--r-- | arch/arm64/kernel/setup.c | 1 |
2 files changed, 3 insertions, 1 deletions
diff --git a/arch/arm64/include/asm/hwcap.h b/arch/arm64/include/asm/hwcap.h index 6cddbb0c9f54..9a4cbd60c88e 100644 --- a/arch/arm64/include/asm/hwcap.h +++ b/arch/arm64/include/asm/hwcap.h @@ -41,7 +41,8 @@ #ifdef CONFIG_COMPAT #define COMPAT_ELF_HWCAP (compat_elf_hwcap) -extern unsigned int compat_elf_hwcap; +#define COMPAT_ELF_HWCAP2 (compat_elf_hwcap2) +extern unsigned int compat_elf_hwcap, compat_elf_hwcap2; #endif extern unsigned long elf_hwcap; diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c index c8e9effe52e1..349c49260f09 100644 --- a/arch/arm64/kernel/setup.c +++ b/arch/arm64/kernel/setup.c @@ -69,6 +69,7 @@ EXPORT_SYMBOL_GPL(elf_hwcap); COMPAT_HWCAP_VFPv3|COMPAT_HWCAP_VFPv4|\ COMPAT_HWCAP_NEON|COMPAT_HWCAP_IDIV) unsigned int compat_elf_hwcap __read_mostly = COMPAT_ELF_HWCAP_DEFAULT; +unsigned int compat_elf_hwcap2 __read_mostly; #endif static const char *cpu_name; |