mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-11-29 22:26:44 +07:00
cfcbadb49d
This will let us specify something like 'sys_xyz/foo' instead of 'sys_xyz' in the syscall table, where the 'foo' qualifier conveys some extra information to the C code. The intent is to allow things like sys_execve/ptregs to indicate that sys_execve() touches pt_regs. Signed-off-by: Andy Lutomirski <luto@kernel.org> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Borislav Petkov <bp@alien8.de> Cc: Brian Gerst <brgerst@gmail.com> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/2de06e33dce62556b3ec662006fcb295504e296e.1454022279.git.luto@kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
76 lines
2.5 KiB
C
76 lines
2.5 KiB
C
#ifndef __LINUX_KBUILD_H
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# error "Please do not build this file directly, build asm-offsets.c instead"
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#endif
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#include <asm/ucontext.h>
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#include <linux/lguest.h>
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#include "../../../drivers/lguest/lg.h"
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#define __SYSCALL_I386(nr, sym, qual) [nr] = 1,
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static char syscalls[] = {
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#include <asm/syscalls_32.h>
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};
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/* workaround for a warning with -Wmissing-prototypes */
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void foo(void);
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void foo(void)
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{
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OFFSET(CPUINFO_x86, cpuinfo_x86, x86);
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OFFSET(CPUINFO_x86_vendor, cpuinfo_x86, x86_vendor);
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OFFSET(CPUINFO_x86_model, cpuinfo_x86, x86_model);
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OFFSET(CPUINFO_x86_mask, cpuinfo_x86, x86_mask);
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OFFSET(CPUINFO_cpuid_level, cpuinfo_x86, cpuid_level);
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OFFSET(CPUINFO_x86_capability, cpuinfo_x86, x86_capability);
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OFFSET(CPUINFO_x86_vendor_id, cpuinfo_x86, x86_vendor_id);
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BLANK();
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OFFSET(PT_EBX, pt_regs, bx);
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OFFSET(PT_ECX, pt_regs, cx);
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OFFSET(PT_EDX, pt_regs, dx);
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OFFSET(PT_ESI, pt_regs, si);
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OFFSET(PT_EDI, pt_regs, di);
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OFFSET(PT_EBP, pt_regs, bp);
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OFFSET(PT_EAX, pt_regs, ax);
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OFFSET(PT_DS, pt_regs, ds);
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OFFSET(PT_ES, pt_regs, es);
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OFFSET(PT_FS, pt_regs, fs);
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OFFSET(PT_GS, pt_regs, gs);
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OFFSET(PT_ORIG_EAX, pt_regs, orig_ax);
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OFFSET(PT_EIP, pt_regs, ip);
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OFFSET(PT_CS, pt_regs, cs);
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OFFSET(PT_EFLAGS, pt_regs, flags);
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OFFSET(PT_OLDESP, pt_regs, sp);
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OFFSET(PT_OLDSS, pt_regs, ss);
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BLANK();
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OFFSET(saved_context_gdt_desc, saved_context, gdt_desc);
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BLANK();
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/* Offset from the sysenter stack to tss.sp0 */
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DEFINE(TSS_sysenter_sp0, offsetof(struct tss_struct, x86_tss.sp0) -
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offsetofend(struct tss_struct, SYSENTER_stack));
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#if defined(CONFIG_LGUEST) || defined(CONFIG_LGUEST_GUEST) || defined(CONFIG_LGUEST_MODULE)
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BLANK();
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OFFSET(LGUEST_DATA_irq_enabled, lguest_data, irq_enabled);
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OFFSET(LGUEST_DATA_irq_pending, lguest_data, irq_pending);
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BLANK();
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OFFSET(LGUEST_PAGES_host_gdt_desc, lguest_pages, state.host_gdt_desc);
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OFFSET(LGUEST_PAGES_host_idt_desc, lguest_pages, state.host_idt_desc);
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OFFSET(LGUEST_PAGES_host_cr3, lguest_pages, state.host_cr3);
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OFFSET(LGUEST_PAGES_host_sp, lguest_pages, state.host_sp);
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OFFSET(LGUEST_PAGES_guest_gdt_desc, lguest_pages,state.guest_gdt_desc);
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OFFSET(LGUEST_PAGES_guest_idt_desc, lguest_pages,state.guest_idt_desc);
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OFFSET(LGUEST_PAGES_guest_gdt, lguest_pages, state.guest_gdt);
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OFFSET(LGUEST_PAGES_regs_trapnum, lguest_pages, regs.trapnum);
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OFFSET(LGUEST_PAGES_regs_errcode, lguest_pages, regs.errcode);
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OFFSET(LGUEST_PAGES_regs, lguest_pages, regs);
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#endif
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BLANK();
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DEFINE(__NR_syscall_max, sizeof(syscalls) - 1);
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DEFINE(NR_syscalls, sizeof(syscalls));
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}
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