Update entry.c

agent/src/entry.c

@@ -2,7 +2,6 @@
 #include <bcrypt.h>
 #include <errno.h>
 
-/* Forward declaration — defined in main.c */
 extern int WINAPI WinMain(HINSTANCE, HINSTANCE, LPSTR, int);
 
 void WinMainCRTStartup(void)
@@ -11,21 +10,10 @@ void WinMainCRTStartup(void)
     ExitProcess((UINT)ret);
 }
 
-/* Stubs for CRT functions that -nostartfiles leaves undefined */
-
-/* atexit: called by libmingwex dtoa/snprintf internals; we ExitProcess so
- * registered handlers will never run — stub is safe. */
 int atexit(void (*fn)(void)) { (void)fn; return 0; }
 
-/* __main: called by some MinGW ctor chains; no C++ ctors in this binary. */
 void __main(void) {}
 
-/*
- * getntptimeofday — normally defined in libmingwex gettimeofday.o, which calls
- * GetModuleHandleA("kernel32") + GetProcAddress to probe GetSystemTimePreciseAsFileTime.
- * Our version uses GetSystemTimeAsFileTime directly (already in IAT) — eliminates
- * the GetModuleHandleA import that gettimeofday.o would add.
- */
 #include <time.h>
 int getntptimeofday(struct timespec *tp, const void *tz)
 {
@@ -34,19 +22,13 @@ int getntptimeofday(struct timespec *tp, const void *tz)
         FILETIME ft;
         GetSystemTimeAsFileTime(&ft);
         ULONGLONG t = ((ULONGLONG)ft.dwHighDateTime << 32) | ft.dwLowDateTime;
-        t -= 116444736000000000ULL; /* FILETIME to Unix epoch (100ns units) */
+        t -= 116444736000000000ULL;
         tp->tv_sec  = (time_t)(t / 10000000ULL);
         tp->tv_nsec = (long)((t % 10000000ULL) * 100);
     }
     return 0;
 }
 
-/*
- * rand_s / __imp_rand_s stubs — prevent libmsvcrt.a(rand_s.o) from linking.
- * rand_s.o imports GetModuleHandleA+GetProcAddress to find RtlGenRandom.
- * libmingwex stack_chk_guard.o (pulled by mbedTLS) references __imp_rand_s.
- * Defining both here satisfies the reference without the GetModuleHandleA dep.
- */
 static errno_t _rand_s_impl(unsigned int *r)
 {
     if (!r) return EINVAL;
@@ -56,11 +38,6 @@ static errno_t _rand_s_impl(unsigned int *r)
 errno_t rand_s(unsigned int *r) { return _rand_s_impl(r); }
 errno_t (*__imp_rand_s)(unsigned int *) = _rand_s_impl;
 
-/*
- * _gmtime64_s stub — mbedTLS platform_util.c.obj calls _gmtime64_s which is
- * provided by libmsvcrt.a(_gmtime64_s.o), another GetModuleHandleA importer.
- * Stub with gmtime() (same semantics, no GetModuleHandleA).
- */
 #include <time.h>
 errno_t _gmtime64_s(struct tm *_Tm, const __int64 *_Time)
 {
@@ -72,9 +49,5 @@ errno_t _gmtime64_s(struct tm *_Tm, const __int64 *_Time)
     return 0;
 }
 errno_t (*__imp__gmtime64_s)(struct tm *, const __int64 *) = _gmtime64_s;
-
-/* Override __imp_GetModuleHandleA — strong data symbol prevents IAT import.
- * Library callers (libpthread misc.o etc.) use result for optional feature
- * detection; returning NULL causes them to use built-in fallbacks. */
 static HMODULE WINAPI _gmha_impl(LPCSTR n) { (void)n; return NULL; }
 HMODULE (WINAPI *__imp_GetModuleHandleA)(LPCSTR) = _gmha_impl;