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authorSzabolcs Nagy <nsz@port70.net>2019-11-03 22:45:05 +0000
committerRich Felker <dalias@aerifal.cx>2019-12-30 18:12:49 -0500
commitf291c09ec90e2514c954020e9b9bdb30e2adfc7f (patch)
tree92e2a75e05a9121b9a76f22c2e17d4c82b36fac3 /include/sys/ptrace.h
parent06636c55428fe220ec4bdeecca723a95a75839ce (diff)
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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.
Diffstat (limited to 'include/sys/ptrace.h')
-rw-r--r--include/sys/ptrace.h28
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