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Fix SetHookChainArg crash due to incorrect pointer to argument (hookctx_t gets the original function as the base address of the arguments, some compilers do UB and so for this reason hookctx_t has been reworked and now uses tuple).

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Update reapi.inc - added ATYPE_BOOL and ATYPE_EVARS types
Compiler: added option flag -static-libstdc++
This commit is contained in:
s1lent 2019-07-29 03:43:06 +07:00
parent 0a17573bed
commit 8b26f29d54
No known key found for this signature in database
GPG Key ID: 0FE401DC73916B5C
7 changed files with 80 additions and 76 deletions
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5
reapi/build.gradle
View File

@ -57,7 +57,7 @@ void setupToolchain(NativeBinarySpec b) {
pchSourceSet: 'reapi_pch'
)
}
cfg.compilerOptions.languageStandard = 'c++11'
cfg.compilerOptions.languageStandard = 'c++14'
cfg.defines([
'_stricmp': 'strcasecmp',
'_strnicmp': 'strncasecmp',
@ -71,6 +71,9 @@ void setupToolchain(NativeBinarySpec b) {
cfg.compilerOptions.args '-Qoption,cpp,--treat_func_as_string_literal_cpp', '-inline-forceinline', '-no-ansi-alias'
}
cfg.linkerOptions.args '-Wl,--version-script=../version_script.lds', '-Wl,--gc-sections'
cfg.compilerOptions.args '-ffunction-sections', '-fdata-sections' // Remove unused code and data
cfg.compilerOptions.args '-Wall', '-Wno-unknown-pragmas', '-msse2', '-fomit-frame-pointer', '-fvisibility=default', '-fvisibility-inlines-hidden', '-fno-rtti', '-g0', '-s', '-fno-exceptions'
}

4
reapi/extra/amxmodx/scripting/include/reapi.inc
View File

@ -116,7 +116,9 @@ enum AType
ATYPE_FLOAT,
ATYPE_STRING,
ATYPE_CLASSPTR,
ATYPE_EDICT
ATYPE_EDICT,
ATYPE_EVARS,
ATYPE_BOOL
};
enum HookChain

119
reapi/src/hook_callback.h
View File

@ -1,5 +1,7 @@
#pragma once
#include <tuple>
// hookchain return type
enum HookChainState
{
@ -17,7 +19,8 @@ enum AType : uint8
ATYPE_STRING,
ATYPE_CLASSPTR,
ATYPE_EDICT,
ATYPE_EVARS
ATYPE_EVARS,
ATYPE_BOOL
};
struct retval_t
@ -44,6 +47,7 @@ inline AType getApiType(char[]) { return ATYPE_STRING; }
inline AType getApiType(CBaseEntity *) { return ATYPE_CLASSPTR; }
inline AType getApiType(edict_t *) { return ATYPE_EDICT; }
inline AType getApiType(entvars_t *) { return ATYPE_EVARS; }
inline AType getApiType(bool) { return ATYPE_BOOL; }
template<typename T>
inline AType getApiType(T *) { return ATYPE_INTEGER; }
@ -63,64 +67,47 @@ bool hasStringArgs(T, f_args... args)
#define MAX_HOOKCHAIN_ARGS 12u
template<size_t current = 0, typename T1, typename T2, typename T3, typename T4, typename ...t_args>
void setupArgTypes(AType args_type[], T1, T2, T3, T4, t_args... args)
{
if (current + 4 <= MAX_HOOKCHAIN_ARGS)
*(uint32 *)&args_type[current] = getApiType(T1()) | (getApiType(T2()) << 8) | (getApiType(T3()) << 16) | (getApiType(T4()) << 24);
if (sizeof...(args) && current + 4 < MAX_HOOKCHAIN_ARGS)
setupArgTypes<current + 4>(args_type, args...);
}
template<size_t current = 0, typename T1, typename T2, typename T3>
void setupArgTypes(AType args_type[], T1, T2, T3)
{
if (current + 3 <= MAX_HOOKCHAIN_ARGS)
*(uint32 *)&args_type[current] = getApiType(T1()) | (getApiType(T2()) << 8) | (getApiType(T3()) << 16);
else
setupArgTypes(args_type, T1(), T2());
}
template<size_t current = 0, typename T1, typename T2>
void setupArgTypes(AType args_type[], T1, T2)
{
if (current + 2 <= MAX_HOOKCHAIN_ARGS)
*(uint16 *)&args_type[current] = getApiType(T1()) | (getApiType(T2()) << 8);
else
setupArgTypes(args_type, T1());
}
template<size_t current = 0, typename T>
void setupArgTypes(AType args_type[], T)
{
if (current + 1 <= MAX_HOOKCHAIN_ARGS)
args_type[current] = getApiType(T());
}
template<size_t current = 0>
void setupArgTypes(AType args_type[])
{
}
struct hookctx_t
{
template<typename ...t_args>
hookctx_t(size_t arg_count, t_args... args)
hookctx_t(size_t arg_count, t_args&&... args)
{
args_count = min(arg_count, MAX_HOOKCHAIN_ARGS);
if (hasStringArgs(args...)) {
tempstrings_used = 0;
}
setupArgTypes(args_type, args...);
args_count = min(arg_count, MAX_HOOKCHAIN_ARGS);
setArgs(std::forward_as_tuple(args...));
}
void reset(size_t arg_ptr, AType ret_type = ATYPE_INTEGER)
template <size_t current = 0,
typename tuple_t,
size_t size = std::tuple_size<typename std::decay<tuple_t>::type>::value,
std::enable_if_t<current >= size>* = nullptr> // if current >= size
void setArgs(tuple_t &&t)
{
}
template <size_t current = 0,
typename tuple_t,
size_t size = std::tuple_size<typename std::decay<tuple_t>::type>::value,
std::enable_if_t<current < size>* = nullptr> // if current < size
void setArgs(tuple_t &&t)
{
// current iteration
if (current < MAX_HOOKCHAIN_ARGS)
{
auto &arg = std::get<current>(std::forward<tuple_t>(t));
args[current].handle = (size_t)&arg;
args[current].type = getApiType(arg);
setArgs<current + 1>(std::forward<tuple_t>(t)); // call next
}
}
void reset(AType ret_type = ATYPE_INTEGER)
{
retVal.set = false;
retVal.type = ret_type;
args_ptr = arg_ptr;
}
char* get_temp_string(AMX* amx)
@ -140,29 +127,34 @@ struct hookctx_t
s_temp_strings.pop(tempstrings_used);
}
retval_t retVal;
size_t args_count;
size_t args_ptr;
size_t tempstrings_used;
AType args_type[MAX_HOOKCHAIN_ARGS];
retval_t retVal = {false,ATYPE_INTEGER};
size_t tempstrings_used = 0;
struct args_t
{
size_t handle;
AType type;
};
size_t args_count = 0;
args_t args[MAX_HOOKCHAIN_ARGS] = {0u, ATYPE_INTEGER};
static CTempStrings s_temp_strings;
};
extern hookctx_t* g_hookCtx;
template <typename original_t, typename ...f_args>
NOINLINE void DLLEXPORT _callVoidForward(const hook_t* hook, original_t original, volatile f_args... args)
NOINLINE void DLLEXPORT _callVoidForward(const hook_t* hook, original_t original, f_args&&... args)
{
auto hookCtx = g_hookCtx;
hookCtx->reset(size_t(&original) + sizeof(original));
hookCtx->reset();
int hc_state = HC_CONTINUE;
for (auto fwd : hook->pre)
{
if (likely(fwd->GetState() == FSTATE_ENABLED))
{
auto ret = g_amxxapi.ExecuteForward(fwd->GetIndex(), args...);
auto ret = g_amxxapi.ExecuteForward(fwd->GetIndex(), std::forward<f_args &&>(args)...);
if (unlikely(ret == HC_BREAK)) {
return;
@ -175,13 +167,13 @@ NOINLINE void DLLEXPORT _callVoidForward(const hook_t* hook, original_t original
if (hc_state != HC_SUPERCEDE) {
g_hookCtx = nullptr;
original(args...);
original(std::forward<f_args &&>(args)...);
g_hookCtx = hookCtx;
}
for (auto fwd : hook->post) {
if (likely(fwd->GetState() == FSTATE_ENABLED)) {
auto ret = g_amxxapi.ExecuteForward(fwd->GetIndex(), args...);
auto ret = g_amxxapi.ExecuteForward(fwd->GetIndex(), std::forward<f_args &&>(args)...);
if (unlikely(ret == HC_BREAK))
break;
@ -190,7 +182,7 @@ NOINLINE void DLLEXPORT _callVoidForward(const hook_t* hook, original_t original
}
template <typename original_t, typename ...f_args>
void callVoidForward(size_t func, original_t original, f_args... args)
void callVoidForward(size_t func, original_t original, f_args&&... args)
{
hookctx_t hookCtx(sizeof...(args), args...);
hookctx_t* save = g_hookCtx;
@ -205,17 +197,18 @@ void callVoidForward(size_t func, original_t original, f_args... args)
}
template <typename R, typename original_t, typename ...f_args>
NOINLINE R DLLEXPORT _callForward(const hook_t* hook, original_t original, volatile f_args... args)
NOINLINE R DLLEXPORT _callForward(const hook_t* hook, original_t original, f_args&&... args)
{
auto hookCtx = g_hookCtx;
hookCtx->reset(size_t(&original) + sizeof(original), getApiType(R()));
hookCtx->reset(getApiType(R()));
int hc_state = HC_CONTINUE;
for (auto fwd : hook->pre)
{
if (likely(fwd->GetState() == FSTATE_ENABLED))
{
auto ret = g_amxxapi.ExecuteForward(fwd->GetIndex(), args...);
auto ret = g_amxxapi.ExecuteForward(fwd->GetIndex(), std::forward<f_args &&>(args)...);
if (likely(ret == HC_CONTINUE)) {
continue;
@ -238,7 +231,7 @@ NOINLINE R DLLEXPORT _callForward(const hook_t* hook, original_t original, volat
if (likely(hc_state != HC_SUPERCEDE))
{
g_hookCtx = nullptr;
auto retVal = original(args...);
auto retVal = original(std::forward<f_args &&>(args)...);
g_hookCtx = hookCtx;
if (unlikely(!hookCtx->retVal.set)) {
@ -259,7 +252,7 @@ NOINLINE R DLLEXPORT _callForward(const hook_t* hook, original_t original, volat
for (auto fwd : hook->post) {
if (likely(fwd->GetState() == FSTATE_ENABLED)) {
auto ret = g_amxxapi.ExecuteForward(fwd->GetIndex(), args...);
auto ret = g_amxxapi.ExecuteForward(fwd->GetIndex(), std::forward<f_args &&>(args)...);
if (unlikely(ret == HC_BREAK))
break;
@ -270,7 +263,7 @@ NOINLINE R DLLEXPORT _callForward(const hook_t* hook, original_t original, volat
}
template <typename R, typename original_t, typename ...f_args>
R callForward(size_t func, original_t original, f_args... args)
R callForward(size_t func, original_t original, f_args&&... args)
{
static_assert(sizeof(R) <= sizeof(int), "invalid hookchain return type size > sizeof(int)");

8
reapi/src/natives/natives_hookchains.cpp
View File

@ -255,8 +255,7 @@ cell AMX_NATIVE_CALL SetHookChainArg(AMX *amx, cell *params)
return FALSE;
}
AType type = g_hookCtx->args_type[number];
AType type = g_hookCtx->args[number].type;
if (unlikely(params[arg_type] != type))
{
AMXX_LogError(amx, AMX_ERR_NATIVE, "%s: invalid argument type provided.", __FUNCTION__);
@ -264,7 +263,7 @@ cell AMX_NATIVE_CALL SetHookChainArg(AMX *amx, cell *params)
}
cell* srcAddr = getAmxAddr(amx, params[arg_value]);
size_t destAddr = g_hookCtx->args_ptr + number * sizeof(int);
size_t destAddr = g_hookCtx->args[number].handle;
switch (type)
{
@ -272,6 +271,9 @@ cell AMX_NATIVE_CALL SetHookChainArg(AMX *amx, cell *params)
case ATYPE_FLOAT:
*(cell *)destAddr = *srcAddr;
break;
case ATYPE_BOOL:
*(bool *)destAddr = *srcAddr != 0;
break;
case ATYPE_STRING:
*(char **)destAddr = getAmxString(srcAddr, g_hookCtx->get_temp_string(amx), CTempStrings::STRING_LEN);
break;

6
shared_gcc.gradle
View File

@ -16,14 +16,13 @@ rootProject.ext.createGccConfig = { boolean release, BinaryKind binKind ->
'linux': null,
'__linux__': null,
'NDEBUG': null,
'_GLIBCXX_USE_CXX11_ABI': 0, // don't use specific c++11 features from GCC 5.X for backward compatibility to earlier version ABI libstdc++.so.6
],
),
linkerOptions: new GccToolchainConfig.LinkerOptions(
stripSymbolTable: false,
staticLibGcc: false,
staticLibStdCpp: false,
staticLibStdCpp: true,
),
librarianOptions: new GccToolchainConfig.LibrarianOptions(
@ -42,14 +41,13 @@ rootProject.ext.createGccConfig = { boolean release, BinaryKind binKind ->
'linux': null,
'__linux__': null,
'NDEBUG': null,
'_GLIBCXX_USE_CXX11_ABI': 0, // don't use specific c++11 features from GCC 5.X for backward compatibility to earlier version ABI libstdc++.so.6
],
),
linkerOptions: new GccToolchainConfig.LinkerOptions(
stripSymbolTable: false,
staticLibGcc: false,
staticLibStdCpp: false,
staticLibStdCpp: true,
),
librarianOptions: new GccToolchainConfig.LibrarianOptions(

6
shared_icc.gradle
View File

@ -19,14 +19,13 @@ rootProject.ext.createIccConfig = { boolean release, BinaryKind binKind ->
'linux': null,
'__linux__': null,
'NDEBUG': null,
'_GLIBCXX_USE_CXX11_ABI': 0, // don't use specific c++11 features from GCC 5.X for backward compatibility to earlier version ABI libstdc++.so.6
],
),
linkerOptions: new GccToolchainConfig.LinkerOptions(
interProceduralOptimizations: true, // -ipo
stripSymbolTable: true,
staticLibStdCpp: false,
staticLibStdCpp: true,
staticLibGcc: false,
staticIntel: true,
),
@ -49,14 +48,13 @@ rootProject.ext.createIccConfig = { boolean release, BinaryKind binKind ->
'linux': null,
'__linux__': null,
'NDEBUG': null,
'_GLIBCXX_USE_CXX11_ABI': 0, // don't use specific c++11 features from GCC 5.X for backward compatibility to earlier version ABI libstdc++.so.6
],
),
linkerOptions: new GccToolchainConfig.LinkerOptions(
interProceduralOptimizations: false,
stripSymbolTable: false,
staticLibStdCpp: false,
staticLibStdCpp: true,
staticLibGcc: false,
staticIntel: true,
),

8
version_script.lds Normal file
View File

@ -0,0 +1,8 @@
REAPI_ABI_1.0 {
global:
Meta_*;
GiveFnptrsToDll;
AMXX_*;
local:
*;
};