[PATCH openEuler-23.09 v3 05/24] arm64: rename COMPAT to AARCH32_EL0

29 Aug 2023

From: Andrew Pinski apinski@cavium.com
maillist inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I7WGZU
CVE: NA
Reference: https://github.com/norov/linux/commits/ilp32-5.2
--------------------------------
In this patchset ILP32 ABI support is added. Additionally to AARCH32,
which is binary-compatible with ARM, ILP32 is (mostly) ABI-compatible.
From now, AARCH32_EL0 (former COMPAT) config option means the support of
AARCH32 userspace, and ARM64_ILP32 - support of ILP32 ABI (see following
patches). COMPAT indicates that one of them or both is enabled.
Where needed, CONFIG_COMPAT is changed over to use CONFIG_AARCH32_EL0
instead.
Reviewed-by: David Daney ddaney@caviumnetworks.com
Signed-off-by: Andrew Pinski Andrew.Pinski@caviumnetworks.com
Signed-off-by: Yury Norov ynorov@caviumnetworks.com
Signed-off-by: Philipp Tomsich philipp.tomsich@theobroma-systems.com
Signed-off-by: Christoph Muellner christoph.muellner@theobroma-systems.com
Signed-off-by: Bamvor Jian Zhang bamv2005@gmail.com
Signed-off-by: Yury Norov ynorov@marvell.com
Signed-off-by: Xiongfeng Wang wangxiongfeng2@huawei.com
Acked-by: Xie XiuQi xiexiuqi@huawei.com
Signed-off-by: Chen Jun chenjun102@huawei.com
Conflicts:
    arch/arm64/Kconfig
    arch/arm64/include/asm/unistd.h
    arch/arm64/kernel/Makefile
    arch/arm64/kernel/asm-offsets.c
    arch/arm64/kernel/cpufeature.c
    arch/arm64/kernel/cpuinfo.c
    arch/arm64/kernel/entry-common.c
    arch/arm64/kernel/entry.S
    arch/arm64/kernel/head.S
    arch/arm64/kernel/perf_callchain.c
    arch/arm64/kernel/vdso.c
[chenjiahao: simple context conflicts]
Signed-off-by: Chen Jiahao chenjiahao16@huawei.com
---
 arch/arm64/Kconfig                  | 11 ++++++++---
 arch/arm64/include/asm/arch_timer.h |  2 +-
 arch/arm64/include/asm/fpsimd.h     |  2 +-
 arch/arm64/include/asm/hwcap.h      |  4 ++--
 arch/arm64/include/asm/processor.h  |  4 ++--
 arch/arm64/include/asm/ptrace.h     |  2 +-
 arch/arm64/include/asm/seccomp.h    |  2 +-
 arch/arm64/include/asm/signal32.h   |  4 ++--
 arch/arm64/include/asm/syscall.h    |  2 +-
 arch/arm64/include/asm/unistd.h     |  2 +-
 arch/arm64/kernel/Makefile          |  4 ++--
 arch/arm64/kernel/asm-offsets.c     |  2 +-
 arch/arm64/kernel/cpufeature.c      | 10 +++++-----
 arch/arm64/kernel/cpuinfo.c         |  8 ++++----
 arch/arm64/kernel/entry-common.c    |  6 +++---
 arch/arm64/kernel/perf_callchain.c  |  6 +++---
 arch/arm64/kernel/ptrace.c          | 10 ++++++----
 arch/arm64/kernel/syscall.c         |  4 ++--
 arch/arm64/kernel/vdso.c            |  4 ++--
 19 files changed, 48 insertions(+), 41 deletions(-)

diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 343e1e1cae10..d76be4b97a9c 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -555,7 +555,7 @@ config ARM64_ERRATUM_1742098
config ARM64_ERRATUM_845719
    bool "Cortex-A53: 845719: a load might read incorrect data"
-	depends on COMPAT
+	depends on AARCH32_EL0
    default y
    help
      This option adds an alternative code sequence to work around ARM
@@ -1587,7 +1587,7 @@ config ARM64_TAGGED_ADDR_ABI
      to system calls as pointer arguments. For details, see
      Documentation/arm64/tagged-address-abi.rst.
-menuconfig COMPAT
+menuconfig AARCH32_EL0
    bool "Kernel support for 32-bit EL0"
    depends on ARM64_4K_PAGES || EXPERT
    select HAVE_UID16
@@ -1605,7 +1605,7 @@ menuconfig COMPAT
If you want to execute 32-bit userspace applications, say Y.
-if COMPAT
+if AARCH32_EL0
config KUSER_HELPERS
    bool "Enable kuser helpers page for 32-bit applications"
@@ -1661,6 +1661,7 @@ config COMPAT_ALIGNMENT_FIXUPS
menuconfig ARMV8_DEPRECATED
    bool "Emulate deprecated/obsolete ARMv8 instructions"
+	depends on AARCH32_EL0
    depends on SYSCTL
    help
      Legacy software support may require certain instructions
@@ -2299,6 +2300,10 @@ config DMI
endmenu # "Boot options"
+config COMPAT
+	def_bool y
+	depends on AARCH32_EL0
+
 menu "Power management options"
source "kernel/power/Kconfig"
diff --git a/arch/arm64/include/asm/arch_timer.h b/arch/arm64/include/asm/arch_timer.h
index af1fafbe7e1d..78fb37d2e77b 100644
--- a/arch/arm64/include/asm/arch_timer.h
+++ b/arch/arm64/include/asm/arch_timer.h
@@ -223,7 +223,7 @@ static inline int arch_timer_arch_init(void)
 static inline void arch_timer_set_evtstrm_feature(void)
 {
    cpu_set_named_feature(EVTSTRM);
-#ifdef CONFIG_COMPAT
+#ifdef CONFIG_AARCH32_EL0
    compat_elf_hwcap |= COMPAT_HWCAP_EVTSTRM;
 #endif
 }
diff --git a/arch/arm64/include/asm/fpsimd.h b/arch/arm64/include/asm/fpsimd.h
index 67f2fb781f59..09d9bbf32514 100644
--- a/arch/arm64/include/asm/fpsimd.h
+++ b/arch/arm64/include/asm/fpsimd.h
@@ -21,7 +21,7 @@
 #include <linux/stddef.h>
 #include <linux/types.h>
-#ifdef CONFIG_COMPAT
+#ifdef CONFIG_AARCH32_EL0
 /* Masks for extracting the FPSR and FPCR from the FPSCR */
 #define VFP_FPSCR_STAT_MASK	0xf800009f
 #define VFP_FPSCR_CTRL_MASK	0x07f79f00
diff --git a/arch/arm64/include/asm/hwcap.h b/arch/arm64/include/asm/hwcap.h
index 5d45f19fda7f..ceb8ed0c349a 100644
--- a/arch/arm64/include/asm/hwcap.h
+++ b/arch/arm64/include/asm/hwcap.h
@@ -145,7 +145,7 @@
 #define ELF_HWCAP		cpu_get_elf_hwcap()
 #define ELF_HWCAP2		cpu_get_elf_hwcap2()
-#ifdef CONFIG_COMPAT
+#ifdef CONFIG_AARCH32_EL0
 #define COMPAT_ELF_HWCAP	(compat_elf_hwcap)
 #define COMPAT_ELF_HWCAP2	(compat_elf_hwcap2)
 extern unsigned int compat_elf_hwcap, compat_elf_hwcap2;
@@ -153,7 +153,7 @@ extern unsigned int compat_elf_hwcap, compat_elf_hwcap2;
enum {
    CAP_HWCAP = 1,
-#ifdef CONFIG_COMPAT
+#ifdef CONFIG_AARCH32_EL0
    CAP_COMPAT_HWCAP,
    CAP_COMPAT_HWCAP2,
 #endif
diff --git a/arch/arm64/include/asm/processor.h b/arch/arm64/include/asm/processor.h
index 3918f2a67970..49780fb472c1 100644
--- a/arch/arm64/include/asm/processor.h
+++ b/arch/arm64/include/asm/processor.h
@@ -256,7 +256,7 @@ static inline void arch_thread_struct_whitelist(unsigned long *offset,
    *size = sizeof_field(struct thread_struct, uw);
 }
-#ifdef CONFIG_COMPAT
+#ifdef CONFIG_AARCH32_EL0
 #define task_user_tls(t)						\
 ({									\
    unsigned long *__tls;						\
@@ -297,7 +297,7 @@ static inline void start_thread(struct pt_regs *regs, unsigned long pc,
    regs->sp = sp;
 }
-#ifdef CONFIG_COMPAT
+#ifdef CONFIG_AARCH32_EL0
 static inline void compat_start_thread(struct pt_regs *regs, unsigned long pc,
    			       unsigned long sp)
 {
diff --git a/arch/arm64/include/asm/ptrace.h b/arch/arm64/include/asm/ptrace.h
index 47ec58031f11..1ff9909e5169 100644
--- a/arch/arm64/include/asm/ptrace.h
+++ b/arch/arm64/include/asm/ptrace.h
@@ -217,7 +217,7 @@ static inline void forget_syscall(struct pt_regs *regs)
#define arch_has_single_step()	(1)
-#ifdef CONFIG_COMPAT
+#ifdef CONFIG_AARCH32_EL0
 #define compat_thumb_mode(regs) \
    (((regs)->pstate & PSR_AA32_T_BIT))
 #else
diff --git a/arch/arm64/include/asm/seccomp.h b/arch/arm64/include/asm/seccomp.h
index 30256233788b..0f4cc9322eb4 100644
--- a/arch/arm64/include/asm/seccomp.h
+++ b/arch/arm64/include/asm/seccomp.h
@@ -10,7 +10,7 @@
#include <asm/unistd.h>
-#ifdef CONFIG_COMPAT
+#ifdef CONFIG_AARCH32_EL0
 #define __NR_seccomp_read_32		__NR_compat_read
 #define __NR_seccomp_write_32		__NR_compat_write
 #define __NR_seccomp_exit_32		__NR_compat_exit
diff --git a/arch/arm64/include/asm/signal32.h b/arch/arm64/include/asm/signal32.h
index 7e9f163d02ec..48ba6c7ab53e 100644
--- a/arch/arm64/include/asm/signal32.h
+++ b/arch/arm64/include/asm/signal32.h
@@ -5,7 +5,7 @@
 #ifndef __ASM_SIGNAL32_H
 #define __ASM_SIGNAL32_H
-#ifdef CONFIG_COMPAT
+#ifdef CONFIG_AARCH32_EL0
 #include <linux/compat.h>
struct compat_sigcontext {
@@ -77,5 +77,5 @@ static inline int compat_setup_rt_frame(int usig, struct ksignal *ksig, sigset_t
 static inline void compat_setup_restart_syscall(struct pt_regs *regs)
 {
 }
-#endif /* CONFIG_COMPAT */
+#endif /* CONFIG_AARCH32_EL0 */
 #endif /* __ASM_SIGNAL32_H */
diff --git a/arch/arm64/include/asm/syscall.h b/arch/arm64/include/asm/syscall.h
index 4cfe9b49709b..6a7b1804278b 100644
--- a/arch/arm64/include/asm/syscall.h
+++ b/arch/arm64/include/asm/syscall.h
@@ -13,7 +13,7 @@ typedef long (*syscall_fn_t)(const struct pt_regs *regs);
extern const syscall_fn_t sys_call_table[];
-#ifdef CONFIG_COMPAT
+#ifdef CONFIG_AARCH32_EL0
 extern const syscall_fn_t compat_sys_call_table[];
 #endif
diff --git a/arch/arm64/include/asm/unistd.h b/arch/arm64/include/asm/unistd.h
index 037feba03a51..9dcffe4cfe23 100644
--- a/arch/arm64/include/asm/unistd.h
+++ b/arch/arm64/include/asm/unistd.h
@@ -2,7 +2,7 @@
 /*
  * Copyright (C) 2012 ARM Ltd.
  */
-#ifdef CONFIG_COMPAT
+#ifdef CONFIG_AARCH32_EL0
 #define __ARCH_WANT_COMPAT_STAT
 #define __ARCH_WANT_COMPAT_STAT64
 #define __ARCH_WANT_SYS_GETHOSTNAME
diff --git a/arch/arm64/kernel/Makefile b/arch/arm64/kernel/Makefile
index 4a9bb9c651a9..96269015e509 100644
--- a/arch/arm64/kernel/Makefile
+++ b/arch/arm64/kernel/Makefile
@@ -36,9 +36,9 @@ obj-y			:= debug-monitors.o entry.o irq.o fpsimd.o		\
    		   syscall.o proton-pack.o idreg-override.o idle.o	\
    		   patching.o ipi_nmi.o
-obj-$(CONFIG_COMPAT)			+= sys32.o signal32.o			\
+obj-$(CONFIG_AARCH32_EL0)			+= sys32.o signal32.o			\
    				   sys_compat.o
-obj-$(CONFIG_COMPAT)			+= sigreturn32.o
+obj-$(CONFIG_AARCH32_EL0)			+= sigreturn32.o
 obj-$(CONFIG_COMPAT_ALIGNMENT_FIXUPS)	+= compat_alignment.o
 obj-$(CONFIG_KUSER_HELPERS)		+= kuser32.o
 obj-$(CONFIG_FUNCTION_TRACER)		+= ftrace.o entry-ftrace.o
diff --git a/arch/arm64/kernel/asm-offsets.c b/arch/arm64/kernel/asm-offsets.c
index 0996094b0d22..5ecbcc61442c 100644
--- a/arch/arm64/kernel/asm-offsets.c
+++ b/arch/arm64/kernel/asm-offsets.c
@@ -99,7 +99,7 @@ int main(void)
   DEFINE(FREGS_SIZE,		sizeof(struct ftrace_regs));
   BLANK();
 #endif
-#ifdef CONFIG_COMPAT
+#ifdef CONFIG_AARCH32_EL0
   DEFINE(COMPAT_SIGFRAME_REGS_OFFSET,		offsetof(struct compat_sigframe, uc.uc_mcontext.arm_r0));
   DEFINE(COMPAT_RT_SIGFRAME_REGS_OFFSET,	offsetof(struct compat_rt_sigframe, sig.uc.uc_mcontext.arm_r0));
   BLANK();
diff --git a/arch/arm64/kernel/cpufeature.c b/arch/arm64/kernel/cpufeature.c
index 7d7128c65161..091512b1f8ad 100644
--- a/arch/arm64/kernel/cpufeature.c
+++ b/arch/arm64/kernel/cpufeature.c
@@ -95,7 +95,7 @@
 /* Kernel representation of AT_HWCAP and AT_HWCAP2 */
 static DECLARE_BITMAP(elf_hwcap, MAX_CPU_FEATURES) __read_mostly;
-#ifdef CONFIG_COMPAT
+#ifdef CONFIG_AARCH32_EL0
 #define COMPAT_ELF_HWCAP_DEFAULT	\
    			(COMPAT_HWCAP_HALF|COMPAT_HWCAP_THUMB|\
    			 COMPAT_HWCAP_FAST_MULT|COMPAT_HWCAP_EDSP|\
@@ -2788,7 +2788,7 @@ static const struct arm64_cpu_capabilities arm64_elf_hwcaps[] = {
    {},
 };
-#ifdef CONFIG_COMPAT
+#ifdef CONFIG_AARCH32_EL0
 static bool compat_has_neon(const struct arm64_cpu_capabilities *cap, int scope)
 {
    /*
@@ -2811,7 +2811,7 @@ static bool compat_has_neon(const struct arm64_cpu_capabilities *cap, int scope)
 #endif
static const struct arm64_cpu_capabilities compat_elf_hwcaps[] = {
-#ifdef CONFIG_COMPAT
+#ifdef CONFIG_AARCH32_EL0
    HWCAP_CAP_MATCH(compat_has_neon, CAP_COMPAT_HWCAP, COMPAT_HWCAP_NEON),
    HWCAP_CAP(MVFR1_EL1, SIMDFMAC, IMP, CAP_COMPAT_HWCAP, COMPAT_HWCAP_VFPv4),
    /* Arm v8 mandates MVFR0.FPDP == {0, 2}. So, piggy back on this for the presence of VFP support */
@@ -2840,7 +2840,7 @@ static void cap_set_elf_hwcap(const struct arm64_cpu_capabilities *cap)
    case CAP_HWCAP:
    	cpu_set_feature(cap->hwcap);
    	break;
-#ifdef CONFIG_COMPAT
+#ifdef CONFIG_AARCH32_EL0
    case CAP_COMPAT_HWCAP:
    	compat_elf_hwcap |= (u32)cap->hwcap;
    	break;
@@ -2863,7 +2863,7 @@ static bool cpus_have_elf_hwcap(const struct arm64_cpu_capabilities *cap)
    case CAP_HWCAP:
    	rc = cpu_have_feature(cap->hwcap);
    	break;
-#ifdef CONFIG_COMPAT
+#ifdef CONFIG_AARCH32_EL0
    case CAP_COMPAT_HWCAP:
    	rc = (compat_elf_hwcap & (u32)cap->hwcap) != 0;
    	break;
diff --git a/arch/arm64/kernel/cpuinfo.c b/arch/arm64/kernel/cpuinfo.c
index eb4378c23b3c..a9cbb1cb64bb 100644
--- a/arch/arm64/kernel/cpuinfo.c
+++ b/arch/arm64/kernel/cpuinfo.c
@@ -127,7 +127,7 @@ static const char *const hwcap_str[] = {
    [KERNEL_HWCAP_SME_F16F16]	= "smef16f16",
 };
-#ifdef CONFIG_COMPAT
+#ifdef CONFIG_AARCH32_EL0
 #define COMPAT_KERNEL_HWCAP(x)	const_ilog2(COMPAT_HWCAP_ ## x)
 static const char *const compat_hwcap_str[] = {
    [COMPAT_KERNEL_HWCAP(SWP)]	= "swp",
@@ -170,7 +170,7 @@ static const char *const compat_hwcap2_str[] = {
    [COMPAT_KERNEL_HWCAP2(SB)]	= "sb",
    [COMPAT_KERNEL_HWCAP2(SSBS)]	= "ssbs",
 };
-#endif /* CONFIG_COMPAT */
+#endif /* CONFIG_AARCH32_EL0 */
static int c_show(struct seq_file *m, void *v)
 {
@@ -203,7 +203,7 @@ static int c_show(struct seq_file *m, void *v)
    	 */
    	seq_puts(m, "Features\t:");
    	if (compat) {
-#ifdef CONFIG_COMPAT
+#ifdef CONFIG_AARCH32_EL0
    		for (j = 0; j < ARRAY_SIZE(compat_hwcap_str); j++) {
    			if (compat_elf_hwcap & (1 << j)) {
    				/*
@@ -220,7 +220,7 @@ static int c_show(struct seq_file *m, void *v)
    		for (j = 0; j < ARRAY_SIZE(compat_hwcap2_str); j++)
    			if (compat_elf_hwcap2 & (1 << j))
    				seq_printf(m, " %s", compat_hwcap2_str[j]);
-#endif /* CONFIG_COMPAT */
+#endif /* CONFIG_AARCH32_EL0 */
    	} else {
    		for (j = 0; j < ARRAY_SIZE(hwcap_str); j++)
    			if (cpu_have_feature(j))
diff --git a/arch/arm64/kernel/entry-common.c b/arch/arm64/kernel/entry-common.c
index 3af3c01c93a6..7e3a378c0115 100644
--- a/arch/arm64/kernel/entry-common.c
+++ b/arch/arm64/kernel/entry-common.c
@@ -757,7 +757,7 @@ asmlinkage void noinstr el0t_64_error_handler(struct pt_regs *regs)
    __el0_error_handler_common(regs);
 }
-#ifdef CONFIG_COMPAT
+#ifdef CONFIG_AARCH32_EL0
 static void noinstr el0_cp15(struct pt_regs *regs, unsigned long esr)
 {
    enter_from_user_mode(regs);
@@ -832,12 +832,12 @@ asmlinkage void noinstr el0t_32_error_handler(struct pt_regs *regs)
 {
    __el0_error_handler_common(regs);
 }
-#else /* CONFIG_COMPAT */
+#else /* CONFIG_AARCH32_EL0 */
 UNHANDLED(el0t, 32, sync)
 UNHANDLED(el0t, 32, irq)
 UNHANDLED(el0t, 32, fiq)
 UNHANDLED(el0t, 32, error)
-#endif /* CONFIG_COMPAT */
+#endif /* CONFIG_AARCH32_EL0 */
#ifdef CONFIG_VMAP_STACK
 asmlinkage void noinstr __noreturn handle_bad_stack(struct pt_regs *regs)
diff --git a/arch/arm64/kernel/perf_callchain.c b/arch/arm64/kernel/perf_callchain.c
index 6d157f32187b..d5cddb150d39 100644
--- a/arch/arm64/kernel/perf_callchain.c
+++ b/arch/arm64/kernel/perf_callchain.c
@@ -52,7 +52,7 @@ user_backtrace(struct frame_tail __user *tail,
    return buftail.fp;
 }
-#ifdef CONFIG_COMPAT
+#ifdef CONFIG_AARCH32_EL0
 /*
  * The registers we're interested in are at the end of the variable
  * length saved register structure. The fp points at the end of this
@@ -97,7 +97,7 @@ compat_user_backtrace(struct compat_frame_tail __user *tail,
return (struct compat_frame_tail __user *)compat_ptr(buftail.fp) - 1;
 }
-#endif /* CONFIG_COMPAT */
+#endif /* CONFIG_AARCH32_EL0 */
void perf_callchain_user(struct perf_callchain_entry_ctx *entry,
    		 struct pt_regs *regs)
@@ -119,7 +119,7 @@ void perf_callchain_user(struct perf_callchain_entry_ctx *entry,
    	       tail && !((unsigned long)tail & 0x7))
    		tail = user_backtrace(tail, entry);
    } else {
-#ifdef CONFIG_COMPAT
+#ifdef CONFIG_AARCH32_EL0
    	/* AARCH32 compat mode */
    	struct compat_frame_tail __user *tail;
diff --git a/arch/arm64/kernel/ptrace.c b/arch/arm64/kernel/ptrace.c
index d7f4f0d1ae12..824f8fec9869 100644
--- a/arch/arm64/kernel/ptrace.c
+++ b/arch/arm64/kernel/ptrace.c
@@ -173,7 +173,7 @@ static void ptrace_hbptriggered(struct perf_event *bp,
    struct arch_hw_breakpoint *bkpt = counter_arch_bp(bp);
    const char *desc = "Hardware breakpoint trap (ptrace)";
-#ifdef CONFIG_COMPAT
+#ifdef CONFIG_AARCH32_EL0
    if (is_compat_task()) {
    	int si_errno = 0;
    	int i;
@@ -1575,7 +1575,9 @@ static const struct user_regset_view user_aarch64_view = {
    .regsets = aarch64_regsets, .n = ARRAY_SIZE(aarch64_regsets)
 };
-#ifdef CONFIG_COMPAT
+#ifdef CONFIG_AARCH32_EL0
+#include <linux/compat.h>
+
 enum compat_regset {
    REGSET_COMPAT_GPR,
    REGSET_COMPAT_VFP,
@@ -2089,11 +2091,11 @@ long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
return ret;
 }
-#endif /* CONFIG_COMPAT */
+#endif /* CONFIG_AARCH32_EL0 */
const struct user_regset_view *task_user_regset_view(struct task_struct *task)
 {
-#ifdef CONFIG_COMPAT
+#ifdef CONFIG_AARCH32_EL0
    /*
     * Core dumping of 32-bit tasks or compat ptrace requests must use the
     * user_aarch32_view compatible with arm32. Native ptrace requests on
diff --git a/arch/arm64/kernel/syscall.c b/arch/arm64/kernel/syscall.c
index da84cf855c44..5e0f66a28353 100644
--- a/arch/arm64/kernel/syscall.c
+++ b/arch/arm64/kernel/syscall.c
@@ -21,7 +21,7 @@ long sys_ni_syscall(void);
static long do_ni_syscall(struct pt_regs *regs, int scno)
 {
-#ifdef CONFIG_COMPAT
+#ifdef CONFIG_AARCH32_EL0
    long ret;
    if (is_compat_task()) {
    	ret = compat_arm_syscall(regs, scno);
@@ -193,7 +193,7 @@ void do_el0_svc(struct pt_regs *regs)
    el0_svc_common(regs, regs->regs[8], __NR_syscalls, sys_call_table);
 }
-#ifdef CONFIG_COMPAT
+#ifdef CONFIG_AARCH32_EL0
 void do_el0_svc_compat(struct pt_regs *regs)
 {
    el0_svc_common(regs, regs->regs[7], __NR_compat_syscalls,
diff --git a/arch/arm64/kernel/vdso.c b/arch/arm64/kernel/vdso.c
index d9e1355730ef..47c2eb75f591 100644
--- a/arch/arm64/kernel/vdso.c
+++ b/arch/arm64/kernel/vdso.c
@@ -231,7 +231,7 @@ static int __setup_additional_pages(enum vdso_abi abi,
    return PTR_ERR(ret);
 }
-#ifdef CONFIG_COMPAT
+#ifdef CONFIG_AARCH32_EL0
 /*
  * Create and map the vectors page for AArch32 tasks.
  */
@@ -409,7 +409,7 @@ int aarch32_setup_additional_pages(struct linux_binprm *bprm, int uses_interp)
    mmap_write_unlock(mm);
    return ret;
 }
-#endif /* CONFIG_COMPAT */
+#endif /* CONFIG_AARCH32_EL0 */
enum aarch64_map {
    AA64_MAP_VVAR,
-- 
2.34.1


    

2024

2023

2022

2021

2020

2019

[PATCH openEuler-23.09 v3 05/24] arm64: rename COMPAT to AARCH32_EL0