diff options
Diffstat (limited to 'arch/x86/um/user-offsets.c')
| -rw-r--r-- | arch/x86/um/user-offsets.c | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/arch/x86/um/user-offsets.c b/arch/x86/um/user-offsets.c new file mode 100644 index 000000000..5b37b7f95 --- /dev/null +++ b/arch/x86/um/user-offsets.c @@ -0,0 +1,100 @@ +// 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)); +} |