cregit-Linux how code gets into the kernel

Release 4.14 arch/x86/um/user-offsets.c

Directory: arch/x86/um
// SPDX-License-Identifier: GPL-2.0
#include <stdio.h>
#include <stddef.h>
#include <signal.h>
#include <sys/poll.h>
#include <sys/mman.h>
#include <sys/user.h>

#define __FRAME_OFFSETS
#include <linux/ptrace.h>
#include <asm/types.h>

#ifdef __i386__

#define __SYSCALL_I386(nr, sym, qual) [nr] = 1,

static char syscalls[] = {
#include <asm/syscalls_32.h>
};
#else

#define __SYSCALL_64(nr, sym, qual) [nr] = 1,

static char syscalls[] = {
#include <asm/syscalls_64.h>
};
#endif


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


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


void foo(void) { #ifdef __i386__ DEFINE_LONGS(HOST_FP_SIZE, sizeof(struct user_fpregs_struct)); DEFINE_LONGS(HOST_FPX_SIZE, sizeof(struct user_fpxregs_struct)); DEFINE(HOST_IP, EIP); DEFINE(HOST_SP, UESP); DEFINE(HOST_EFLAGS, EFL); DEFINE(HOST_AX, EAX); DEFINE(HOST_BX, EBX); DEFINE(HOST_CX, ECX); DEFINE(HOST_DX, EDX); DEFINE(HOST_SI, ESI); DEFINE(HOST_DI, EDI); DEFINE(HOST_BP, EBP); DEFINE(HOST_CS, CS); DEFINE(HOST_SS, SS); DEFINE(HOST_DS, DS); DEFINE(HOST_FS, FS); DEFINE(HOST_ES, ES); DEFINE(HOST_GS, GS); DEFINE(HOST_ORIG_AX, ORIG_EAX); #else #ifdef FP_XSTATE_MAGIC1 DEFINE_LONGS(HOST_FP_SIZE, 2696); #else DEFINE(HOST_FP_SIZE, sizeof(struct _fpstate) / sizeof(unsigned long)); #endif DEFINE_LONGS(HOST_BX, RBX); DEFINE_LONGS(HOST_CX, RCX); DEFINE_LONGS(HOST_DI, RDI); DEFINE_LONGS(HOST_SI, RSI); DEFINE_LONGS(HOST_DX, RDX); DEFINE_LONGS(HOST_BP, RBP); DEFINE_LONGS(HOST_AX, RAX); DEFINE_LONGS(HOST_R8, R8); DEFINE_LONGS(HOST_R9, R9); DEFINE_LONGS(HOST_R10, R10); DEFINE_LONGS(HOST_R11, R11); DEFINE_LONGS(HOST_R12, R12); DEFINE_LONGS(HOST_R13, R13); DEFINE_LONGS(HOST_R14, R14); DEFINE_LONGS(HOST_R15, R15); DEFINE_LONGS(HOST_ORIG_AX, ORIG_RAX); DEFINE_LONGS(HOST_CS, CS); DEFINE_LONGS(HOST_SS, SS); DEFINE_LONGS(HOST_EFLAGS, EFLAGS); #if 0 DEFINE_LONGS(HOST_FS, FS); DEFINE_LONGS(HOST_GS, GS); DEFINE_LONGS(HOST_DS, DS); DEFINE_LONGS(HOST_ES, ES); #endif DEFINE_LONGS(HOST_IP, RIP); DEFINE_LONGS(HOST_SP, RSP); #endif DEFINE(UM_FRAME_SIZE, sizeof(struct user_regs_struct)); DEFINE(UM_POLLIN, POLLIN); DEFINE(UM_POLLPRI, POLLPRI); DEFINE(UM_POLLOUT, POLLOUT); DEFINE(UM_PROT_READ, PROT_READ); DEFINE(UM_PROT_WRITE, PROT_WRITE); DEFINE(UM_PROT_EXEC, PROT_EXEC); DEFINE(__NR_syscall_max, sizeof(syscalls) - 1); DEFINE(NR_syscalls, sizeof(syscalls)); }

Contributors

PersonTokensPropCommitsCommitProp
Al Viro32478.26%545.45%
Jeff Dike4210.14%218.18%
Florian Fainelli245.80%218.18%
H. Peter Anvin225.31%19.09%
Thomas Meyer20.48%19.09%
Total414100.00%11100.00%


Overall Contributors

PersonTokensPropCommitsCommitProp
Al Viro36070.18%531.25%
H. Peter Anvin6913.45%16.25%
Jeff Dike5210.14%425.00%
Florian Fainelli244.68%212.50%
Andrew Lutomirski40.78%16.25%
Thomas Meyer20.39%16.25%
Greg Kroah-Hartman10.19%16.25%
Richard Weinberger10.19%16.25%
Total513100.00%16100.00%
Directory: arch/x86/um
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