linux/arch/x86/kernel/asm-offsets_64.c
H. Peter Anvin a06c9bc064 x32: If configured, add x32 system calls to system call tables
If CONFIG_X86_X32_ABI is defined, add the x32 system calls to the
system call tables.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2012-02-20 12:52:06 -08:00

90 lines
1.8 KiB
C

#include <asm/ia32.h>
#define __SYSCALL_64(nr, sym, compat) [nr] = 1,
#define __SYSCALL_COMMON(nr, sym, compat) [nr] = 1,
#ifdef CONFIG_X86_X32_ABI
# define __SYSCALL_X32(nr, sym, compat) [nr] = 1,
#else
# define __SYSCALL_X32(nr, sym, compat) /* nothing */
#endif
static char syscalls_64[] = {
#include <asm/syscalls_64.h>
};
#define __SYSCALL_I386(nr, sym, compat) [nr] = 1,
static char syscalls_ia32[] = {
#include <asm/syscalls_32.h>
};
int main(void)
{
#ifdef CONFIG_PARAVIRT
OFFSET(PV_IRQ_adjust_exception_frame, pv_irq_ops, adjust_exception_frame);
OFFSET(PV_CPU_usergs_sysret32, pv_cpu_ops, usergs_sysret32);
OFFSET(PV_CPU_usergs_sysret64, pv_cpu_ops, usergs_sysret64);
OFFSET(PV_CPU_swapgs, pv_cpu_ops, swapgs);
BLANK();
#endif
#ifdef CONFIG_IA32_EMULATION
OFFSET(TI_sysenter_return, thread_info, sysenter_return);
BLANK();
#define ENTRY(entry) OFFSET(IA32_SIGCONTEXT_ ## entry, sigcontext_ia32, entry)
ENTRY(ax);
ENTRY(bx);
ENTRY(cx);
ENTRY(dx);
ENTRY(si);
ENTRY(di);
ENTRY(bp);
ENTRY(sp);
ENTRY(ip);
BLANK();
#undef ENTRY
OFFSET(IA32_RT_SIGFRAME_sigcontext, rt_sigframe_ia32, uc.uc_mcontext);
BLANK();
#endif
#define ENTRY(entry) OFFSET(pt_regs_ ## entry, pt_regs, entry)
ENTRY(bx);
ENTRY(bx);
ENTRY(cx);
ENTRY(dx);
ENTRY(sp);
ENTRY(bp);
ENTRY(si);
ENTRY(di);
ENTRY(r8);
ENTRY(r9);
ENTRY(r10);
ENTRY(r11);
ENTRY(r12);
ENTRY(r13);
ENTRY(r14);
ENTRY(r15);
ENTRY(flags);
BLANK();
#undef ENTRY
#define ENTRY(entry) OFFSET(saved_context_ ## entry, saved_context, entry)
ENTRY(cr0);
ENTRY(cr2);
ENTRY(cr3);
ENTRY(cr4);
ENTRY(cr8);
BLANK();
#undef ENTRY
OFFSET(TSS_ist, tss_struct, x86_tss.ist);
BLANK();
DEFINE(__NR_syscall_max, sizeof(syscalls_64) - 1);
DEFINE(NR_syscalls, sizeof(syscalls_64));
DEFINE(__NR_ia32_syscall_max, sizeof(syscalls_ia32) - 1);
DEFINE(IA32_NR_syscalls, sizeof(syscalls_ia32));
return 0;
}