qemu/linux-user/alpha/target_syscall.h

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#ifndef ALPHA_TARGET_SYSCALL_H
#define ALPHA_TARGET_SYSCALL_H
/* default linux values for the selectors */
#define __USER_DS (1)
struct target_pt_regs {
abi_ulong r0;
abi_ulong r1;
abi_ulong r2;
abi_ulong r3;
abi_ulong r4;
abi_ulong r5;
abi_ulong r6;
abi_ulong r7;
abi_ulong r8;
abi_ulong r19;
abi_ulong r20;
abi_ulong r21;
abi_ulong r22;
abi_ulong r23;
abi_ulong r24;
abi_ulong r25;
abi_ulong r26;
abi_ulong r27;
abi_ulong r28;
abi_ulong hae;
/* JRP - These are the values provided to a0-a2 by PALcode */
abi_ulong trap_a0;
abi_ulong trap_a1;
abi_ulong trap_a2;
/* These are saved by PAL-code: */
abi_ulong ps;
abi_ulong pc;
abi_ulong gp;
abi_ulong r16;
abi_ulong r17;
abi_ulong r18;
/* Those is needed by qemu to temporary store the user stack pointer */
abi_ulong usp;
abi_ulong unique;
};
#define UNAME_MACHINE "alpha"
#define UNAME_MINIMUM_RELEASE "2.6.32"
// For sys_osf_getsysinfo
#define TARGET_GSI_UACPROC 8
#define TARGET_GSI_IEEE_FP_CONTROL 45
#define TARGET_GSI_IEEE_STATE_AT_SIGNAL 46
#define TARGET_GSI_PROC_TYPE 60
#define TARGET_GSI_GET_HWRPB 101
// For sys_ofs_setsysinfo
#define TARGET_SSI_NVPAIRS 1
#define TARGET_SSI_IEEE_FP_CONTROL 14
#define TARGET_SSI_IEEE_STATE_AT_SIGNAL 15
#define TARGET_SSI_IEEE_IGNORE_STATE_AT_SIGNAL 16
#define TARGET_SSI_IEEE_RAISE_EXCEPTION 1001
#define TARGET_SSIN_UACPROC 6
#define TARGET_UAC_NOPRINT 1
#define TARGET_UAC_NOFIX 2
#define TARGET_UAC_SIGBUS 4
#define TARGET_MINSIGSTKSZ 4096
linux-user: Add strace support for printing arguments of syscalls used to lock and unlock memory This patch implements strace argument printing functionality for following syscalls: * mlock, munlock, mlockall, munlockall - lock and unlock memory int mlock(const void *addr, size_t len) int munlock(const void *addr, size_t len) int mlockall(int flags) int munlockall(void) man page: https://man7.org/linux/man-pages/man2/mlock.2.html Implementation notes: Syscall mlockall() takes an argument that is composed of predefined values which represent flags that determine the type of locking operation that is to be performed. For that reason, a printing function "print_mlockall" was stated in file "strace.list". This printing function uses an already existing function "print_flags()" to print the "flags" argument. These flags are stated inside an array "mlockall_flags" that contains values of type "struct flags". These values are instantiated using an existing macro "FLAG_TARGET()" that crates aproppriate target flag values based on those defined in files '/target_syscall.h'. These target flag values were changed from "TARGET_MLOCKALL_MCL*" to "TARGET_MCL_*" so that they can be aproppriately set and recognised in "strace.c" with "FLAG_TARGET()". Value for "MCL_ONFAULT" was added in this patch. This value was also added in "syscall.c" in function "target_to_host_mlockall_arg()". Because this flag value was added in kernel version 4.4, it is enwrapped in an #ifdef directive (both in "syscall.c" and in "strace.c") as to support older kernel versions. The other syscalls have only primitive argument types, so the rest of the implementation was handled by stating an appropriate printing format in file "strace.list". Syscall mlock2() is not implemented in "syscall.c" and thus it's argument printing is not implemented in this patch. Signed-off-by: Filip Bozuta <Filip.Bozuta@syrmia.com> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20200811164553.27713-4-Filip.Bozuta@syrmia.com> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2020-08-11 19:45:51 +03:00
#define TARGET_MCL_CURRENT 0x2000
#define TARGET_MCL_FUTURE 0x4000
#define TARGET_MCL_ONFAULT 0x8000
#endif /* ALPHA_TARGET_SYSCALL_H */