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| author | Filip Bozuta <Filip.Bozuta@syrmia.com> | 2020-06-19 14:33:27 +0200 |
|---|---|---|
| committer | Laurent Vivier <laurent@vivier.eu> | 2020-06-29 13:08:48 +0200 |
| commit | c42569f65c1c5302fb110488ad27423a948e5a7f (patch) | |
| tree | ca55fa848214b963e8f8af6f8b559a8f2204d77c /linux-user/strace.c | |
| parent | c84be71f685436fd7216a159528421c3d7af8d05 (diff) | |
| download | qemu-c42569f65c1c5302fb110488ad27423a948e5a7f.zip qemu-c42569f65c1c5302fb110488ad27423a948e5a7f.tar.gz qemu-c42569f65c1c5302fb110488ad27423a948e5a7f.tar.bz2 | |
linux-user: Add strace support for a group of syscalls
This patch implements strace argument printing functionality for following syscalls:
*acct - switch process accounting on or off
int acct(const char *filename)
man page: https://www.man7.org/linux/man-pages/man2/acct.2.html
*fsync, fdatasync - synchronize a file's in-core state with storage device
int fsync(int fd)
int fdatasync(int fd)
man page: https://www.man7.org/linux/man-pages/man2/fsync.2.html
*listen - listen for connections on a socket
int listen(int sockfd, int backlog)
man page: https://www.man7.org/linux/man-pages/man2/listen.2.html
Implementation notes:
Syscall acct() takes string as its only argument and thus a separate
print function "print_acct" is stated in file "strace.list". This
function is defined and implemented in "strace.c" by using an
existing function used to print string arguments: "print_string()".
All the other syscalls have only primitive argument types, so the
rest of the implementation was handled by stating an appropriate
printing format in file "strace.list".
Signed-off-by: Filip Bozuta <Filip.Bozuta@syrmia.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20200619123331.17387-3-filip.bozuta@syrmia.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Diffstat (limited to 'linux-user/strace.c')
| -rw-r--r-- | linux-user/strace.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/linux-user/strace.c b/linux-user/strace.c index 62117e8..123e022 100644 --- a/linux-user/strace.c +++ b/linux-user/strace.c @@ -1357,6 +1357,18 @@ print_access(const struct syscallname *name, } #endif +#ifdef TARGET_NR_acct +static void +print_acct(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_string(arg0, 1); + print_syscall_epilogue(name); +} +#endif + #ifdef TARGET_NR_brk static void print_brk(const struct syscallname *name, @@ -1621,7 +1633,6 @@ print_fcntl(const struct syscallname *name, #define print_fcntl64 print_fcntl #endif - #ifdef TARGET_NR_futimesat static void print_futimesat(const struct syscallname *name, |