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| author | Szabolcs Nagy <nsz@port70.net> | 2019-11-03 22:45:05 +0000 |
|---|---|---|
| committer | Rich Felker <dalias@aerifal.cx> | 2019-12-30 18:12:49 -0500 |
| commit | f291c09ec90e2514c954020e9b9bdb30e2adfc7f (patch) | |
| tree | 92e2a75e05a9121b9a76f22c2e17d4c82b36fac3 | |
| parent | 06636c55428fe220ec4bdeecca723a95a75839ce (diff) | |
| download | musl-f291c09ec90e2514c954020e9b9bdb30e2adfc7f.tar.gz | |
sys/ptrace.h: add PTRACE_GET_SYSCALL_INFO from linux v5.3
ptrace API to get details of the syscall the tracee is blocked in, see
linux commit 201766a20e30f982ccfe36bebfad9602c3ff574a
ptrace: add PTRACE_GET_SYSCALL_INFO request
the align attribute was used to keep the layout the same across targets
e.g. on m68k uint32_t is 2 byte aligned, this helps with compat ptrace.
| -rw-r--r-- | include/sys/ptrace.h | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/include/sys/ptrace.h b/include/sys/ptrace.h index 229e1f3d..2a868093 100644 --- a/include/sys/ptrace.h +++ b/include/sys/ptrace.h @@ -41,6 +41,7 @@ extern "C" { #define PTRACE_SETSIGMASK 0x420b #define PTRACE_SECCOMP_GET_FILTER 0x420c #define PTRACE_SECCOMP_GET_METADATA 0x420d +#define PTRACE_GET_SYSCALL_INFO 0x420e #define PT_READ_I PTRACE_PEEKTEXT #define PT_READ_D PTRACE_PEEKDATA @@ -88,6 +89,11 @@ extern "C" { #define PTRACE_PEEKSIGINFO_SHARED 1 +#define PTRACE_SYSCALL_INFO_NONE 0 +#define PTRACE_SYSCALL_INFO_ENTRY 1 +#define PTRACE_SYSCALL_INFO_EXIT 2 +#define PTRACE_SYSCALL_INFO_SECCOMP 3 + #include <bits/ptrace.h> struct __ptrace_peeksiginfo_args { @@ -101,6 +107,28 @@ struct __ptrace_seccomp_metadata { uint64_t flags; }; +struct __ptrace_syscall_info { + uint8_t op; + uint32_t arch __attribute__((__aligned__(4))); + uint64_t instruction_pointer; + uint64_t stack_pointer; + union { + struct { + uint64_t nr; + uint64_t args[6]; + } entry; + struct { + int64_t rval; + uint8_t is_error; + } exit; + struct { + uint64_t nr; + uint64_t args[6]; + uint32_t ret_data; + } seccomp; + }; +}; + long ptrace(int, ...); #ifdef __cplusplus |