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awilliam
GitHub Repository: awilliam/linux-vfio
 Path: blob/master/arch/um/sys-x86_64/user-offsets.c
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#include <stdio.h>

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#include <stddef.h>

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#include <signal.h>

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#include <sys/poll.h>

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#include <sys/mman.h>

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#include <sys/user.h>

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#define __FRAME_OFFSETS

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#include <asm/ptrace.h>

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#include <asm/types.h>

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#define DEFINE(sym, val) \

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        asm volatile("\n->" #sym " %0 " #val : : "i" (val))

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#define DEFINE_LONGS(sym, val) \

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        asm volatile("\n->" #sym " %0 " #val : : "i" (val/sizeof(unsigned long)))

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#define OFFSET(sym, str, mem) \

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	DEFINE(sym, offsetof(struct str, mem));

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void foo(void)

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{

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	OFFSET(HOST_SC_CR2, sigcontext, cr2);

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	OFFSET(HOST_SC_ERR, sigcontext, err);

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	OFFSET(HOST_SC_TRAPNO, sigcontext, trapno);

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	DEFINE(HOST_FP_SIZE, sizeof(struct _fpstate) / sizeof(unsigned long));

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	DEFINE_LONGS(HOST_RBX, RBX);

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	DEFINE_LONGS(HOST_RCX, RCX);

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	DEFINE_LONGS(HOST_RDI, RDI);

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	DEFINE_LONGS(HOST_RSI, RSI);

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	DEFINE_LONGS(HOST_RDX, RDX);

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	DEFINE_LONGS(HOST_RBP, RBP);

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	DEFINE_LONGS(HOST_RAX, RAX);

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	DEFINE_LONGS(HOST_R8, R8);

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	DEFINE_LONGS(HOST_R9, R9);

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	DEFINE_LONGS(HOST_R10, R10);

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	DEFINE_LONGS(HOST_R11, R11);

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	DEFINE_LONGS(HOST_R12, R12);

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	DEFINE_LONGS(HOST_R13, R13);

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	DEFINE_LONGS(HOST_R14, R14);

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	DEFINE_LONGS(HOST_R15, R15);

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	DEFINE_LONGS(HOST_ORIG_RAX, ORIG_RAX);

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	DEFINE_LONGS(HOST_CS, CS);

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	DEFINE_LONGS(HOST_SS, SS);

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	DEFINE_LONGS(HOST_EFLAGS, EFLAGS);

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#if 0

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	DEFINE_LONGS(HOST_FS, FS);

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	DEFINE_LONGS(HOST_GS, GS);

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	DEFINE_LONGS(HOST_DS, DS);

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	DEFINE_LONGS(HOST_ES, ES);

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#endif

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	DEFINE_LONGS(HOST_IP, RIP);

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	DEFINE_LONGS(HOST_SP, RSP);

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	DEFINE(UM_FRAME_SIZE, sizeof(struct user_regs_struct));

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	/* XXX Duplicated between i386 and x86_64 */

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	DEFINE(UM_POLLIN, POLLIN);

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	DEFINE(UM_POLLPRI, POLLPRI);

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	DEFINE(UM_POLLOUT, POLLOUT);

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	DEFINE(UM_PROT_READ, PROT_READ);

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	DEFINE(UM_PROT_WRITE, PROT_WRITE);

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	DEFINE(UM_PROT_EXEC, PROT_EXEC);

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}

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