git: 2ec26ae402fc - main - linux: Improve debug for PTRACE_GETEVENTMSG

[Edward Tomasz Napierala]

The branch main has been updated by trasz:

URL: 
https://cgit.FreeBSD.org/src/commit/?id=2ec26ae402fc2589cb97bb5aa713b6d0ba080c17

commit 2ec26ae402fc2589cb97bb5aa713b6d0ba080c17
Author:     Edward Tomasz Napierala <tr...@freebsd.org>
AuthorDate: 2021-10-23 18:53:12 +0000
Commit:     Edward Tomasz Napierala <tr...@freebsd.org>
CommitDate: 2021-10-23 18:53:12 +0000

    linux: Improve debug for PTRACE_GETEVENTMSG
    
    No functional changes.
    
    Sponsored By:   EPSRC
---
 sys/amd64/linux/linux_ptrace.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/sys/amd64/linux/linux_ptrace.c b/sys/amd64/linux/linux_ptrace.c
index d7dffc92dd11..b7d0838fb054 100644
--- a/sys/amd64/linux/linux_ptrace.c
+++ b/sys/amd64/linux/linux_ptrace.c
@@ -66,6 +66,7 @@ __FBSDID("$FreeBSD$");
 #define        LINUX_PTRACE_DETACH             17
 #define        LINUX_PTRACE_SYSCALL            24
 #define        LINUX_PTRACE_SETOPTIONS         0x4200
+#define        LINUX_PTRACE_GETEVENTMSG        0x4201
 #define        LINUX_PTRACE_GETSIGINFO         0x4202
 #define        LINUX_PTRACE_GETREGSET          0x4204
 #define        LINUX_PTRACE_SEIZE              0x4206
@@ -393,6 +394,14 @@ linux_ptrace_setoptions(struct thread *td, pid_t pid, 
l_ulong data)
        return (kern_ptrace(td, PT_SET_EVENT_MASK, pid, &mask, sizeof(mask)));
 }
 
+static int
+linux_ptrace_geteventmsg(struct thread *td, pid_t pid, l_ulong data)
+{
+
+       linux_msg(td, "PTRACE_GETEVENTMSG not implemented; returning EINVAL");
+       return (EINVAL);
+}
+
 static int
 linux_ptrace_getsiginfo(struct thread *td, pid_t pid, l_ulong data)
 {
@@ -735,6 +744,9 @@ linux_ptrace(struct thread *td, struct linux_ptrace_args 
*uap)
        case LINUX_PTRACE_SETOPTIONS:
                error = linux_ptrace_setoptions(td, pid, uap->data);
                break;
+       case LINUX_PTRACE_GETEVENTMSG:
+               error = linux_ptrace_geteventmsg(td, pid, uap->data);
+               break;
        case LINUX_PTRACE_GETSIGINFO:
                error = linux_ptrace_getsiginfo(td, pid, uap->data);
                break;