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syscall_emul: clean up open() code a bit.

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This commit is contained in:
Steve Reinhardt
2012-08-06 16:55:28 -07:00
parent b647b48bf4
commit e232152db6
3 changed files with 14 additions and 7 deletions
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11
src/sim/syscall_emul.hh
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@@ -640,17 +640,22 @@ openFunc(SyscallDesc *desc, int callnum, LiveProcess *process,
DPRINTF(SyscallVerbose, "opening file %s\n", path.c_str());
int fd;
int local_errno;
if (startswith(path, "/proc/") || startswith(path, "/system/") ||
startswith(path, "/platform/") || startswith(path, "/sys/")) {
// It's a proc/sys entery and requires special handling
// It's a proc/sys entry and requires special handling
fd = OS::openSpecialFile(path, process, tc);
return (fd == -1) ? -1 : process->alloc_fd(fd,path.c_str(),hostFlags,mode, false);
local_errno = ENOENT;
} else {
// open the file
fd = open(path.c_str(), hostFlags, mode);
return (fd == -1) ? -errno : process->alloc_fd(fd,path.c_str(),hostFlags,mode, false);
local_errno = errno;
}
if (fd == -1)
return -local_errno;
return process->alloc_fd(fd, path.c_str(), hostFlags, mode, false);
}
/// Target sysinfo() handler.