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| author | Gregory Price <gourry.memverge@gmail.com> | 2023-04-07 13:18:33 -0400 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2023-04-16 14:23:07 +0200 |
| commit | 3f67987cdc09778e75098f9f5168832f8f8e1f1c (patch) | |
| tree | 48648bbc78fee9bc257739aff7f79031071ae0e8 /kernel/ptrace.c | |
| parent | 463b7715e7ce367fce89769c5d85e31595715ee1 (diff) | |
| download | linux-3f67987cdc09778e75098f9f5168832f8f8e1f1c.tar.gz linux-3f67987cdc09778e75098f9f5168832f8f8e1f1c.tar.bz2 linux-3f67987cdc09778e75098f9f5168832f8f8e1f1c.zip | |
ptrace: Provide set/get interface for syscall user dispatch
The syscall user dispatch configuration can only be set by the task itself,
but lacks a ptrace set/get interface which makes it impossible to implement
checkpoint/restore for it.
Add the required ptrace requests and the get/set functions in the syscall
user dispatch code to make that possible.
Signed-off-by: Gregory Price <gregory.price@memverge.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Oleg Nesterov <oleg@redhat.com>
Link: https://lore.kernel.org/r/20230407171834.3558-4-gregory.price@memverge.com
Diffstat (limited to 'kernel/ptrace.c')
| -rw-r--r-- | kernel/ptrace.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/kernel/ptrace.c b/kernel/ptrace.c index 0786450074c1..443057bee87c 100644 --- a/kernel/ptrace.c +++ b/kernel/ptrace.c @@ -32,6 +32,7 @@ #include <linux/compat.h> #include <linux/sched/signal.h> #include <linux/minmax.h> +#include <linux/syscall_user_dispatch.h> #include <asm/syscall.h> /* for syscall_get_* */ @@ -1259,6 +1260,14 @@ int ptrace_request(struct task_struct *child, long request, break; #endif + case PTRACE_SET_SYSCALL_USER_DISPATCH_CONFIG: + ret = syscall_user_dispatch_set_config(child, addr, datavp); + break; + + case PTRACE_GET_SYSCALL_USER_DISPATCH_CONFIG: + ret = syscall_user_dispatch_get_config(child, addr, datavp); + break; + default: break; } |