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authorFilip Bozuta <Filip.Bozuta@syrmia.com>2020-08-11 18:45:50 +0200
committerLaurent Vivier <laurent@vivier.eu>2020-08-27 12:29:49 +0200
commit7c89f343836049b4732acde00db401e633335f8c (patch)
tree003906b26c4af0b8d22a1a831e3ae3c8e2a80129 /linux-user/s390x
parente400e11941b036654202e638ad9a6518fea06fde (diff)
linux-user: Add strace support for printing arguments of truncate()/ftruncate() and getsid()
This patch implements strace argument printing functionality for following syscalls: * truncate, ftruncate - truncate a file to a specified length int truncate/truncate64(const char *path, off_t length) int ftruncate/ftruncate64(int fd, off_t length) man page: https://man7.org/linux/man-pages/man2/truncate.2.html * getsid - get session ID pid_t getsid(pid_t pid) man page: https://man7.org/linux/man-pages/man2/getsid.2.html Implementation notes: Syscalls truncate/truncate64 take string argument types and thus a separate print function "print_truncate/print_truncate64" 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()". For syscall ftruncate64, a separate printing function was also stated in "strace.c" as it requires a special kind of handling. 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". Function "regpairs_aligned()" was cut & pasted from "syscall.c" to "qemu.h" as it is used by functions "print_truncate64()" and "print_ftruncate64()" to print the offset arguments of "truncate64()" and "ftruncate64()". Signed-off-by: Filip Bozuta <Filip.Bozuta@syrmia.com> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20200811164553.27713-3-Filip.Bozuta@syrmia.com> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Diffstat (limited to 'linux-user/s390x')
0 files changed, 0 insertions, 0 deletions