diff options
Diffstat (limited to 'src/process_vm.c')
| -rw-r--r-- | src/process_vm.c | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/src/process_vm.c b/src/process_vm.c new file mode 100644 index 000000000..73f63015b --- /dev/null +++ b/src/process_vm.c @@ -0,0 +1,59 @@ +/* + * Copyright (c) 2012 Denys Vlasenko <vda.linux@googlemail.com> + * Copyright (c) 2012-2015 Dmitry V. Levin <ldv@strace.io> + * Copyright (c) 2014-2020 The strace developers. + * All rights reserved. + * + * SPDX-License-Identifier: LGPL-2.1-or-later + */ + +#include "defs.h" + +SYS_FUNC(process_vm_readv) +{ + if (entering(tcp)) { + /* arg 1: pid */ + printpid(tcp, tcp->u_arg[0], PT_TGID); + tprints(", "); + } else { + kernel_ulong_t local_iovcnt = tcp->u_arg[2]; + kernel_ulong_t remote_iovcnt = tcp->u_arg[4]; + kernel_ulong_t flags = tcp->u_arg[5]; + + /* arg 2: local iov */ + tprint_iov_upto(tcp, local_iovcnt, tcp->u_arg[1], + syserror(tcp) ? IOV_DECODE_ADDR : IOV_DECODE_STR, + tcp->u_rval); + /* arg 3: local iovcnt */ + tprintf(", %" PRI_klu ", ", local_iovcnt); + /* arg 4: remote iov */ + tprint_iov(tcp, remote_iovcnt, tcp->u_arg[3], + IOV_DECODE_ADDR); + /* arg 5: remote iovcnt */ + /* arg 6: flags */ + tprintf(", %" PRI_klu ", %" PRI_klu, remote_iovcnt, flags); + } + return 0; +} + +SYS_FUNC(process_vm_writev) +{ + kernel_ulong_t local_iovcnt = tcp->u_arg[2]; + kernel_ulong_t remote_iovcnt = tcp->u_arg[4]; + kernel_ulong_t flags = tcp->u_arg[5]; + + /* arg 1: pid */ + printpid(tcp, tcp->u_arg[0], PT_TGID); + tprints(", "); + /* arg 2: local iov */ + tprint_iov(tcp, local_iovcnt, tcp->u_arg[1], IOV_DECODE_STR); + /* arg 3: local iovcnt */ + tprintf(", %" PRI_klu ", ", local_iovcnt); + /* arg 4: remote iov */ + tprint_iov(tcp, remote_iovcnt, tcp->u_arg[3], IOV_DECODE_ADDR); + /* arg 5: remote iovcnt */ + /* arg 6: flags */ + tprintf(", %" PRI_klu ", %" PRI_klu, remote_iovcnt, flags); + + return RVAL_DECODED; +} |