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syscall: Implementation of the ftruncate64 system call.

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This commit is contained in:
Timothy M. Jones 2009-10-24 10:53:58 -07:00
parent 7cdd5316ab
commit c32d919bc0
2 changed files with 21 additions and 0 deletions
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16
src/sim/syscall_emul.cc
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@ -404,6 +404,22 @@ ftruncateFunc(SyscallDesc *desc, int num,
return (result == -1) ? -errno : result;
}
SyscallReturn
ftruncate64Func(SyscallDesc *desc, int num,
LiveProcess *process, ThreadContext *tc)
{
int fd = process->sim_fd(process->getSyscallArg(tc, 0));
if (fd < 0)
return -EBADF;
// I'm not sure why, but the length argument is in arg reg 3
loff_t length = process->getSyscallArg(tc, 3);
int result = ftruncate64(fd, length);
return (result == -1) ? -errno : result;
}
SyscallReturn
umaskFunc(SyscallDesc *desc, int num, LiveProcess *process, ThreadContext *tc)
{

5
src/sim/syscall_emul.hh
View file

@ -260,6 +260,11 @@ SyscallReturn ftruncateFunc(SyscallDesc *desc, int num,
LiveProcess *p, ThreadContext *tc);
/// Target ftruncate64() handler.
SyscallReturn ftruncate64Func(SyscallDesc *desc, int num,
LiveProcess *p, ThreadContext *tc);
/// Target umask() handler.
SyscallReturn umaskFunc(SyscallDesc *desc, int num,
LiveProcess *p, ThreadContext *tc);