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Fix some bugs

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- addr2line backtrace should continue on eintr
- lua crashes if we try to iterate a non-table
This commit is contained in:
Justine Tunney 2022-04-27 20:18:34 -07:00
parent 92ebef16ee
commit e3a7ab1804
2 changed files with 27 additions and 48 deletions
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3
libc/tinymath/csqrt.c
View file

@ -67,7 +67,8 @@ asm(".include \"libc/disclaimer.inc\"");
* gcc generates is acceptable, since the special cases have already been
* handled.
*/
#pragma STDC CX_LIMITED_RANGE ON
// TODO(elimisteve): write test proving why we do / don't need it
// #pragma STDC CX_LIMITED_RANGE ON
/* We risk spurious overflow for components >= DBL_MAX / (1 + sqrt(2)). */
#define THRESH 0x1.a827999fcef32p+1022

72
tool/net/lunix.c
View file

@ -93,11 +93,6 @@
* @support Linux, Mac, Windows, FreeBSD, NetBSD, OpenBSD
*/
struct UnixDir {
int refs;
DIR *dir;
};
struct UnixErrno {
int errno;
int winerr;
@ -1721,7 +1716,7 @@ static int LuaUnixMinor(lua_State *L) {
////////////////////////////////////////////////////////////////////////////////
// unix.Stat object
static dontinline struct stat *GetUnixStat(lua_State *L) {
static struct stat *GetUnixStat(lua_State *L) {
return luaL_checkudata(L, 1, "unix.Stat");
}
@ -2051,38 +2046,29 @@ static void LuaUnixSigsetObj(lua_State *L) {
////////////////////////////////////////////////////////////////////////////////
// unix.Dir object
static struct UnixDir **GetUnixDirSelf(lua_State *L) {
static DIR **GetUnixDirSelf(lua_State *L) {
return luaL_checkudata(L, 1, "unix.Dir");
}
static DIR *GetDirOrDie(lua_State *L) {
struct UnixDir **udir;
udir = GetUnixDirSelf(L);
assert((*udir)->dir);
if (*udir) return (*udir)->dir;
DIR **dirp;
dirp = GetUnixDirSelf(L);
if (*dirp) return *dirp;
luaL_argerror(L, 1, "unix.UnixDir is closed");
unreachable;
}
static int FreeUnixDir(struct UnixDir *dir) {
int rc;
if (--dir->refs) return 0;
rc = closedir(dir->dir);
free(dir);
return rc;
}
// unix.Dir:close()
// ├─→ true
// └─→ nil, unix.Errno
static int LuaUnixDirClose(lua_State *L) {
DIR **dirp;
int rc, olderr;
struct UnixDir **udir;
udir = GetUnixDirSelf(L);
if (*udir) {
dirp = GetUnixDirSelf(L);
if (*dirp) {
olderr = 0;
rc = FreeUnixDir(*udir);
*udir = 0;
rc = closedir(*dirp);
*dirp = 0;
return SysretBool(L, "closedir", olderr, rc);
} else {
lua_pushboolean(L, true);
@ -2138,12 +2124,11 @@ static int LuaUnixDirRewind(lua_State *L) {
return 0;
}
static int ReturnDir(lua_State *L, struct UnixDir *udir) {
struct UnixDir **udirp;
udir->refs = 1;
udirp = lua_newuserdatauv(L, sizeof(*udirp), 1);
static int ReturnDir(lua_State *L, DIR *dir) {
DIR **dirp;
dirp = lua_newuserdatauv(L, sizeof(*dirp), 1);
luaL_setmetatable(L, "unix.Dir");
*udirp = udir;
*dirp = dir;
return 1;
}
@ -2151,33 +2136,26 @@ static int ReturnDir(lua_State *L, struct UnixDir *udir) {
// ├─→ state:unix.Dir
// └─→ nil, unix.Errno
static int LuaUnixOpendir(lua_State *L) {
DIR *dir;
int olderr = errno;
const char *path;
struct UnixDir *udir;
path = luaL_checkstring(L, 1);
if ((udir = LuaUnixAlloc(L, sizeof(*udir)))) {
if ((udir->dir = opendir(path))) {
return ReturnDir(L, udir);
}
free(udir);
if ((dir = opendir(luaL_checkstring(L, 1)))) {
return ReturnDir(L, dir);
} else {
return SysretErrno(L, "opendir", olderr);
}
return SysretErrno(L, "opendir", olderr);
}
// unix.fdopendir(fd:int)
// ├─→ next:function, state:unix.Dir
// └─→ nil, unix.Errno
static int LuaUnixFdopendir(lua_State *L) {
int fd, olderr = errno;
struct UnixDir *udir;
fd = luaL_checkinteger(L, 1);
if ((udir = LuaUnixAlloc(L, sizeof(*udir)))) {
if ((udir->dir = fdopendir(fd))) {
return ReturnDir(L, udir);
}
free(udir);
DIR *dir;
int olderr = errno;
if ((dir = fdopendir(luaL_checkinteger(L, 1)))) {
return ReturnDir(L, dir);
} else {
return SysretErrno(L, "fdopendir", olderr);
}
return SysretErrno(L, "fdopendir", olderr);
}
static const luaL_Reg kLuaUnixDirMeth[] = {