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|
-- generate C test file to check type sizes etc
-- OSX version, similar to BSD
local S = require "syscall"
local abi = S.abi
local types = S.types
local t, ctypes, s = types.t, types.ctypes, types.s
local c = S.c
local ffi = require "ffi"
local reflect = require "include.ffi-reflect.reflect"
-- internal
c.errornames = nil
-- fixups
c.AF.DECnet = c.AF.DECNET
c.AF.DECNET = nil
c.CHFLAGS.IMMUTABLE = nil -- alias
c.CHFLAGS.APPEND = nil -- alias
c.CHFLAGS.OPAQUE = nil -- alias
c.CLOCKTYPE.SYSTEM_CLOCK, c.CLOCKTYPE.SYSTEM = c.CLOCKTYPE.SYSTEM, nil
c.CLOCKTYPE.CALENDAR_CLOCK, c.CLOCKTYPE.CALENDAR = c.CLOCKTYPE.CALENDAR, nil
c.CLOCKTYPE.REALTIME_CLOCK, c.CLOCKTYPE.REALTIME = c.CLOCKTYPE.REALTIME, nil
c.R_OK = c.OK.R
c.W_OK = c.OK.W
c.F_OK = c.OK.F
c.X_OK = c.OK.X
c.OK = nil
c.STD.IN = nil
c.STD.OUT = nil
c.STD.ERR = nil
c.SIGACT = nil -- TODO cast correctly instead, giving warning
for k, v in pairs(c.IOCTL) do if type(v) == "table" then c.IOCTL[k] = v.number end end
-- these are Linux names TODO are there actually BSD names?
ctypes["struct ethhdr"] = nil
ctypes["struct iphdr"] = nil
ctypes["struct udphdr"] = nil
ctypes["struct legacy_dirent"] = nil
-- doesnt actually exist in osx
ctypes["clockid_t"] = nil
ctypes["struct itimerspec"] = nil
print [[
/* this code is generated by ctest-bsd.lua */
#define _FILE_OFFSET_BITS 64
#define _LARGE_FILES 1
#define __USE_FILE_OFFSET64
#define _INCOMPLETE_XOPEN_C063
#include <stddef.h>
#include <stdint.h>
#include <stdio.h>
#include <limits.h>
#include <errno.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/event.h>
#include <sys/sysctl.h>
#include <fcntl.h>
#include <sys/socket.h>
#include <arpa/inet.h>
#include <signal.h>
#include <sys/utsname.h>
#include <time.h>
#include <sys/resource.h>
#include <sys/time.h>
#include <sys/un.h>
#include <poll.h>
#include <sys/mman.h>
#include <sched.h>
#include <sys/xattr.h>
#include <termios.h>
#include <unistd.h>
#include <sys/mount.h>
#include <sys/uio.h>
#include <net/route.h>
#include <sys/wait.h>
#include <dirent.h>
#include <sys/ioctl.h>
#include <sys/reboot.h>
#include <sys/syscall.h>
#include <sys/ttycom.h>
#include <netinet/tcp.h>
#include <netinet/in.h>
#include <sys/ioctl_compat.h>
#include <sys/mount.h>
#include <mach/clock.h>
#include <mach/mach.h>
int ret = 0;
void sassert(int a, int b, char *n) {
if (a != b) {
printf("error with %s: %d (0x%x) != %d (0x%x)\n", n, a, a, b, b);
ret = 1;
}
}
void sassert_u64(uint64_t a, uint64_t b, char *n) {
if (a != b) {
printf("error with %s: %llu (0x%llx) != %llu (0x%llx)\n", n, (unsigned long long)a, (unsigned long long)a, (unsigned long long)b, (unsigned long long)b);
ret = 1;
}
}
int main(int argc, char **argv) {
]]
local ignore_offsets = {
sig = "true", -- sigset_t renamed TODO rename back
}
-- iterate over S.ctypes
for k, v in pairs(ctypes) do
print("sassert(sizeof(" .. k .. "), " .. ffi.sizeof(v) .. ', "' .. k .. '");')
-- check offset of struct fields
local refct = reflect.typeof(v)
if refct.what == "struct" then
for r in refct:members() do
local name = r.name
-- bit hacky - TODO fix these issues
if ignore_offsets[name] then name = nil end
if name then
print("sassert(offsetof(" .. k .. "," .. name .. "), " .. ffi.offsetof(v, name) .. ', " offset of ' .. name .. ' in' .. k .. '");')
end
end
end
end
-- test all the constants
-- renamed ones
local nm = {
E = "E",
SIG = "SIG",
STD = "STD",
MODE = "S_I",
MSYNC = "MS_",
W = "W",
POLL = "POLL",
S_I = "S_I",
LFLAG = "",
IFLAG = "",
OFLAG = "",
CFLAG = "",
CC = "",
IOCTL = "",
B = "B",
SYS = "SYS___",
AT_FDCWD = "AT_",
FCNTL_LOCK = "F_",
SIGACT = "SIG_",
UMOUNT = "MNT_",
SIGPM = "SIG_",
FCNTL_LOCK = "F_",
LOCKF = "F_",
PC = "_PC_",
TCSA = "TCSA",
TCFLUSH = "TC",
TCFLOW = "TC",
CHFLAGS = "",
CLOCKTYPE = "",
}
for k, v in pairs(c) do
if type(v) == "number" then
print("sassert(" .. k .. ", " .. v .. ', "' .. k .. '");')
elseif type(v) == "table" then
for k2, v2 in pairs(v) do
local name = nm[k] or k .. "_"
if type(v2) ~= "function" then
if type(v2) == "cdata" and ffi.sizeof(v2) == 8 then
print("sassert_u64(" .. name .. k2 .. ", " .. tostring(v2) .. ', "' .. name .. k2 .. '");')
else
print("sassert(" .. name .. k2 .. ", " .. tostring(tonumber(v2)) .. ', "' .. name .. k2 .. '");')
end
end
end
end
end
print [[
return ret;
}
]]
|
