From d1e411e5c786ce3028d98b4e6fc02c2fcf66ae37 Mon Sep 17 00:00:00 2001 From: Joseph Myers Date: Mon, 14 Oct 2019 23:43:52 +0000 Subject: Add PTRACE_GET_SYSCALL_INFO from Linux 5.3 to sys/ptrace.h. Linux 5.3 adds a PTRACE_GET_SYSCALL_INFO constant, with an associated structure and PTRACE_SYSCALL_INFO_* constants. This patch adds these to sys/ptrace.h in glibc (PTRACE_GET_SYSCALL_INFO in each architecture version, the rest in bits/ptrace-shared.h). As with previous such constants and associated structures, the glibc version of the structure is named struct __ptrace_syscall_info. Tested for x86_64, and with build-many-glibcs.py. --- sysdeps/unix/sysv/linux/bits/ptrace-shared.h | 47 ++++++++++++++++++++++++++++ 1 file changed, 47 insertions(+) (limited to 'sysdeps/unix/sysv/linux/bits/ptrace-shared.h') diff --git a/sysdeps/unix/sysv/linux/bits/ptrace-shared.h b/sysdeps/unix/sysv/linux/bits/ptrace-shared.h index 1dc1ec79b1..f351d2f45b 100644 --- a/sysdeps/unix/sysv/linux/bits/ptrace-shared.h +++ b/sysdeps/unix/sysv/linux/bits/ptrace-shared.h @@ -52,6 +52,15 @@ enum __ptrace_eventcodes PTRACE_EVENT_STOP = 128 }; +/* Type of stop for PTRACE_GET_SYSCALL_INFO. */ +enum __ptrace_get_syscall_info_op +{ + PTRACE_SYSCALL_INFO_NONE = 0, + PTRACE_SYSCALL_INFO_ENTRY = 1, + PTRACE_SYSCALL_INFO_EXIT = 2, + PTRACE_SYSCALL_INFO_SECCOMP = 3 +}; + /* Arguments for PTRACE_PEEKSIGINFO. */ struct __ptrace_peeksiginfo_args { @@ -73,6 +82,44 @@ struct __ptrace_seccomp_metadata __uint64_t flags; /* Output: filter's flags. */ }; +/* Results of PTRACE_GET_SYSCALL_INFO. */ +struct __ptrace_syscall_info +{ + __uint8_t op; /* One of the enum + __ptrace_get_syscall_info_op + values. */ + __uint32_t arch __attribute__ ((__aligned__ (4))); /* AUDIT_ARCH_* + value. */ + __uint64_t instruction_pointer; /* Instruction pointer. */ + __uint64_t stack_pointer; /* Stack pointer. */ + union + { + /* System call number and arguments, for + PTRACE_SYSCALL_INFO_ENTRY. */ + struct + { + __uint64_t nr; + __uint64_t args[6]; + } entry; + /* System call return value and error flag, for + PTRACE_SYSCALL_INFO_EXIT. */ + struct + { + __int64_t rval; + __uint8_t is_error; + } exit; + /* System call number, arguments and SECCOMP_RET_DATA portion of + SECCOMP_RET_TRACE return value, for + PTRACE_SYSCALL_INFO_SECCOMP. */ + struct + { + __uint64_t nr; + __uint64_t args[6]; + __uint32_t ret_data; + } seccomp; + }; +}; + /* Perform process tracing functions. REQUEST is one of the values above, and determines the action to be taken. For all requests except PTRACE_TRACEME, PID specifies the process to be -- cgit 1.4.1