diff options
| author | Brian Gerst <brgerst@gmail.com> | 2020-03-13 20:51:34 +0100 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2020-03-21 16:03:21 +0100 |
| commit | 0872098804b5f44bab91f80b6df55df32894fee3 (patch) | |
| tree | 1cfe6e6c1d6a4d5c9c083b288780af56364ca0bb /arch/x86/kernel | |
| parent | x86/entry/64: Split X32 syscall table into its own file (diff) | |
| download | linux-0872098804b5f44bab91f80b6df55df32894fee3.tar.xz linux-0872098804b5f44bab91f80b6df55df32894fee3.zip | |
x86/entry: Move max syscall number calculation to syscallhdr.sh
Instead of using an array in asm-offsets to calculate the max syscall
number, calculate it when writing out the syscall headers.
Signed-off-by: Brian Gerst <brgerst@gmail.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/r/20200313195144.164260-9-brgerst@gmail.com
Diffstat (limited to 'arch/x86/kernel')
| -rw-r--r-- | arch/x86/kernel/asm-offsets_32.c | 9 | ||||
| -rw-r--r-- | arch/x86/kernel/asm-offsets_64.c | 36 |
2 files changed, 0 insertions, 45 deletions
diff --git a/arch/x86/kernel/asm-offsets_32.c b/arch/x86/kernel/asm-offsets_32.c index 82826f2275cc..0dcac420b341 100644 --- a/arch/x86/kernel/asm-offsets_32.c +++ b/arch/x86/kernel/asm-offsets_32.c @@ -5,11 +5,6 @@ #include <asm/ucontext.h> -#define __SYSCALL_I386(nr, sym, qual) [nr] = 1, -static char syscalls[] = { -#include <asm/syscalls_32.h> -}; - /* workaround for a warning with -Wmissing-prototypes */ void foo(void); @@ -60,8 +55,4 @@ void foo(void) BLANK(); OFFSET(stack_canary_offset, stack_canary, canary); #endif - - BLANK(); - DEFINE(__NR_syscall_max, sizeof(syscalls) - 1); - DEFINE(NR_syscalls, sizeof(syscalls)); } diff --git a/arch/x86/kernel/asm-offsets_64.c b/arch/x86/kernel/asm-offsets_64.c index 24d2fde30d00..c2a47016f243 100644 --- a/arch/x86/kernel/asm-offsets_64.c +++ b/arch/x86/kernel/asm-offsets_64.c @@ -5,30 +5,6 @@ #include <asm/ia32.h> -#define __SYSCALL_64(nr, sym, qual) [nr] = 1, -#define __SYSCALL_X32(nr, sym, qual) -static char syscalls_64[] = { -#include <asm/syscalls_64.h> -}; -#undef __SYSCALL_64 -#undef __SYSCALL_X32 - -#ifdef CONFIG_X86_X32_ABI -#define __SYSCALL_64(nr, sym, qual) -#define __SYSCALL_X32(nr, sym, qual) [nr] = 1, -static char syscalls_x32[] = { -#include <asm/syscalls_64.h> -}; -#undef __SYSCALL_64 -#undef __SYSCALL_X32 -#endif - -#define __SYSCALL_I386(nr, sym, qual) [nr] = 1, -static char syscalls_ia32[] = { -#include <asm/syscalls_32.h> -}; -#undef __SYSCALL_I386 - #if defined(CONFIG_KVM_GUEST) && defined(CONFIG_PARAVIRT_SPINLOCKS) #include <asm/kvm_para.h> #endif @@ -90,17 +66,5 @@ int main(void) DEFINE(stack_canary_offset, offsetof(struct fixed_percpu_data, stack_canary)); BLANK(); #endif - - DEFINE(__NR_syscall_max, sizeof(syscalls_64) - 1); - DEFINE(NR_syscalls, sizeof(syscalls_64)); - -#ifdef CONFIG_X86_X32_ABI - DEFINE(__NR_syscall_x32_max, sizeof(syscalls_x32) - 1); - DEFINE(X32_NR_syscalls, sizeof(syscalls_x32)); -#endif - - DEFINE(__NR_syscall_compat_max, sizeof(syscalls_ia32) - 1); - DEFINE(IA32_NR_syscalls, sizeof(syscalls_ia32)); - return 0; } |