From 5847d3098d92851015e0f0c868e1305103feae02 Mon Sep 17 00:00:00 2001 From: Matus Kysel Date: Tue, 6 Apr 2021 14:42:03 +0000 Subject: [PATCH] linux-user: strace now handles unshare syscall args correctly Syscall unshare did not have custom print function for strace, but it's argument is same as flags in clone syscall, so it can be easily implemented. Also updated missing flags from clone_flags. Signed-off-by: Matus Kysel Reviewed-by: Laurent Vivier Message-Id: <20210406144203.1020598-1-mkysel@tachyum.com> Signed-off-by: Laurent Vivier --- linux-user/strace.c | 18 ++++++++++++++++++ linux-user/strace.list | 2 +- 2 files changed, 19 insertions(+), 1 deletion(-) diff --git a/linux-user/strace.c b/linux-user/strace.c index e969121b6c..1cadb6d50f 100644 --- a/linux-user/strace.c +++ b/linux-user/strace.c @@ -1109,6 +1109,12 @@ UNUSED static struct flags clone_flags[] = { #if defined(CLONE_NEWNET) FLAG_GENERIC(CLONE_NEWNET), #endif +#if defined(CLONE_NEWCGROUP) + FLAG_GENERIC(CLONE_NEWCGROUP), +#endif +#if defined(CLONE_NEWTIME) + FLAG_GENERIC(CLONE_NEWTIME), +#endif #if defined(CLONE_IO) FLAG_GENERIC(CLONE_IO), #endif @@ -3467,6 +3473,18 @@ print_unlinkat(void *cpu_env, const struct syscallname *name, } #endif +#ifdef TARGET_NR_unshare +static void +print_unshare(void *cpu_env, const struct syscallname *name, + abi_long arg0, abi_long arg1, abi_long arg2, + abi_long arg3, abi_long arg4, abi_long arg5) +{ + print_syscall_prologue(name); + print_flags(clone_flags, arg0, 1); + print_syscall_epilogue(name); +} +#endif + #ifdef TARGET_NR_utime static void print_utime(void *cpu_env, const struct syscallname *name, diff --git a/linux-user/strace.list b/linux-user/strace.list index 084048ab96..3b7c15578c 100644 --- a/linux-user/strace.list +++ b/linux-user/strace.list @@ -1573,7 +1573,7 @@ { TARGET_NR_unlinkat, "unlinkat" , NULL, print_unlinkat, NULL }, #endif #ifdef TARGET_NR_unshare -{ TARGET_NR_unshare, "unshare" , NULL, NULL, NULL }, +{ TARGET_NR_unshare, "unshare" , NULL, print_unshare, NULL }, #endif #ifdef TARGET_NR_userfaultfd { TARGET_NR_userfaultfd, "userfaultfd" , NULL, NULL, NULL }, -- 2.11.4.GIT