diff options
author | Vince Weaver <vince@csl.cornell.edu> | 2009-10-30 12:31:55 -0400 |
---|---|---|
committer | Vince Weaver <vince@csl.cornell.edu> | 2009-10-30 12:31:55 -0400 |
commit | 9ad3acab5ea79effe27fba240d8f89aadc138f6f (patch) | |
tree | ede62ff08422e8cf1a467faac7e29669e5b42fc8 /src/sim/syscall_emul.cc | |
parent | d6ff7929b30cde7bce1b3f3be89e1ef6eda82a2d (diff) | |
download | gem5-9ad3acab5ea79effe27fba240d8f89aadc138f6f.tar.xz |
SysCalls: Implement truncate64 system call
This uses the new stack-based argument infrastructure.
Tested on x86 and x86_64.
Diffstat (limited to 'src/sim/syscall_emul.cc')
-rw-r--r-- | src/sim/syscall_emul.cc | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/src/sim/syscall_emul.cc b/src/sim/syscall_emul.cc index fae3586a4..cc8d99bcd 100644 --- a/src/sim/syscall_emul.cc +++ b/src/sim/syscall_emul.cc @@ -451,6 +451,25 @@ ftruncateFunc(SyscallDesc *desc, int num, } SyscallReturn +truncate64Func(SyscallDesc *desc, int num, + LiveProcess *process, ThreadContext *tc) +{ + int index = 0; + string path; + + if (!tc->getMemPort()->tryReadString(path, process->getSyscallArg(tc, index))) + return -EFAULT; + + loff_t length = process->getSyscallArg(tc, index, 64); + + // Adjust path for current working directory + path = process->fullPath(path); + + int result = truncate64(path.c_str(), length); + return (result == -1) ? -errno : result; +} + +SyscallReturn ftruncate64Func(SyscallDesc *desc, int num, LiveProcess *process, ThreadContext *tc) { |