303395ac3b
Generate system call tables and unistd_*.h automatically from the tables in arch/x86/syscalls. All other information, like NR_syscalls, is auto-generated, some of which is in asm-offsets_*.c. This allows us to keep all the system call information in one place, and allows for kernel space and user space to see different information; this is currently used for the ia32 system call numbers when building the 64-bit kernel, but will be used by the x32 ABI in the near future. This also removes some gratuitious differences between i386, x86-64 and ia32; in particular, now all system call tables are generated with the same mechanism. Cc: H. J. Lu <hjl.tools@gmail.com> Cc: Sam Ravnborg <sam@ravnborg.org> Cc: Michal Marek <mmarek@suse.cz> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
83 lines
1.6 KiB
C
83 lines
1.6 KiB
C
#include <asm/ia32.h>
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#define __SYSCALL_64(nr, sym, compat) [nr] = 1,
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static char syscalls_64[] = {
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#include <asm/syscalls_64.h>
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};
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#define __SYSCALL_I386(nr, sym, compat) [nr] = 1,
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static char syscalls_ia32[] = {
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#include <asm/syscalls_32.h>
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};
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int main(void)
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{
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#ifdef CONFIG_PARAVIRT
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OFFSET(PV_IRQ_adjust_exception_frame, pv_irq_ops, adjust_exception_frame);
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OFFSET(PV_CPU_usergs_sysret32, pv_cpu_ops, usergs_sysret32);
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OFFSET(PV_CPU_usergs_sysret64, pv_cpu_ops, usergs_sysret64);
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OFFSET(PV_CPU_swapgs, pv_cpu_ops, swapgs);
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BLANK();
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#endif
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#ifdef CONFIG_IA32_EMULATION
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OFFSET(TI_sysenter_return, thread_info, sysenter_return);
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BLANK();
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#define ENTRY(entry) OFFSET(IA32_SIGCONTEXT_ ## entry, sigcontext_ia32, entry)
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ENTRY(ax);
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ENTRY(bx);
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ENTRY(cx);
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ENTRY(dx);
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ENTRY(si);
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ENTRY(di);
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ENTRY(bp);
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ENTRY(sp);
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ENTRY(ip);
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BLANK();
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#undef ENTRY
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OFFSET(IA32_RT_SIGFRAME_sigcontext, rt_sigframe_ia32, uc.uc_mcontext);
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BLANK();
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#endif
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#define ENTRY(entry) OFFSET(pt_regs_ ## entry, pt_regs, entry)
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ENTRY(bx);
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ENTRY(bx);
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ENTRY(cx);
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ENTRY(dx);
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ENTRY(sp);
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ENTRY(bp);
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ENTRY(si);
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ENTRY(di);
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ENTRY(r8);
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ENTRY(r9);
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ENTRY(r10);
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ENTRY(r11);
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ENTRY(r12);
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ENTRY(r13);
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ENTRY(r14);
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ENTRY(r15);
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ENTRY(flags);
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BLANK();
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#undef ENTRY
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#define ENTRY(entry) OFFSET(saved_context_ ## entry, saved_context, entry)
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ENTRY(cr0);
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ENTRY(cr2);
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ENTRY(cr3);
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ENTRY(cr4);
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ENTRY(cr8);
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BLANK();
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#undef ENTRY
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OFFSET(TSS_ist, tss_struct, x86_tss.ist);
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BLANK();
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DEFINE(__NR_syscall_max, sizeof(syscalls_64) - 1);
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DEFINE(NR_syscalls, sizeof(syscalls_64));
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DEFINE(__NR_ia32_syscall_max, sizeof(syscalls_ia32) - 1);
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DEFINE(IA32_NR_syscalls, sizeof(syscalls_ia32));
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return 0;
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}
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