diff -Naur openjdk-8.265_p01/hotspot/src/os/linux/vm/jvm_linux.cpp openjdk-8.265_p01-copy/hotspot/src/os/linux/vm/jvm_linux.cpp
--- openjdk-8.265_p01/hotspot/src/os/linux/vm/jvm_linux.cpp	2020-10-11 15:53:08.468010359 -0400
+++ openjdk-8.265_p01-copy/hotspot/src/os/linux/vm/jvm_linux.cpp	2020-10-11 20:42:02.152018764 -0400
@@ -154,7 +154,9 @@
 #ifdef SIGSTKFLT
   "STKFLT",     SIGSTKFLT,      /* Stack fault.  */
 #endif
+#ifdef SIGCLD
   "CLD",        SIGCLD,         /* Same as SIGCHLD (System V).  */
+#endif
   "CHLD",       SIGCHLD,        /* Child status has changed (POSIX).  */
   "CONT",       SIGCONT,        /* Continue (POSIX).  */
   "STOP",       SIGSTOP,        /* Stop, unblockable (POSIX).  */
diff -Naur openjdk-8.265_p01/hotspot/src/os/linux/vm/os_linux.cpp openjdk-8.265_p01-copy/hotspot/src/os/linux/vm/os_linux.cpp
--- openjdk-8.265_p01/hotspot/src/os/linux/vm/os_linux.cpp	2020-10-11 15:53:08.468010359 -0400
+++ openjdk-8.265_p01-copy/hotspot/src/os/linux/vm/os_linux.cpp	2020-10-11 20:43:52.252018818 -0400
@@ -95,7 +95,6 @@
 # include <string.h>
 # include <syscall.h>
 # include <sys/sysinfo.h>
-# include <gnu/libc-version.h>
 # include <sys/ipc.h>
 # include <sys/shm.h>
 # include <link.h>
@@ -581,6 +580,13 @@
 // detecting pthread library
 
 void os::Linux::libpthread_init() {
+#if 1
+  // Hard code Alpine Linux supported musl compatible settings
+  os::Linux::set_glibc_version("glibc 2.9");
+  os::Linux::set_libpthread_version("NPTL");
+  os::Linux::set_is_NPTL();
+  os::Linux::set_is_floating_stack();
+#else
   // Save glibc and pthread version strings. Note that _CS_GNU_LIBC_VERSION
   // and _CS_GNU_LIBPTHREAD_VERSION are supported in glibc >= 2.3.2. Use a
   // generic name for earlier versions.
@@ -639,6 +645,7 @@
   if (os::Linux::is_NPTL() || os::Linux::supports_variable_stack_size()) {
      os::Linux::set_is_floating_stack();
   }
+#endif
 }
 
 /////////////////////////////////////////////////////////////////////////////
@@ -2968,6 +2975,11 @@
 extern "C" JNIEXPORT void numa_error(char *where) { }
 extern "C" JNIEXPORT int fork1() { return fork(); }
 
+static void *dlvsym(void *handle, const char *name, const char *ver)
+{
+  return dlsym(handle, name);
+}
+
 // Handle request to load libnuma symbol version 1.1 (API v1). If it fails
 // load symbol from base version instead.
 void* os::Linux::libnuma_dlsym(void* handle, const char *name) {
diff -Naur openjdk-8.265_p01/hotspot/src/os/linux/vm/os_linux.inline.hpp openjdk-8.265_p01-copy/hotspot/src/os/linux/vm/os_linux.inline.hpp
--- openjdk-8.265_p01/hotspot/src/os/linux/vm/os_linux.inline.hpp	2020-10-11 15:53:08.468010359 -0400
+++ openjdk-8.265_p01-copy/hotspot/src/os/linux/vm/os_linux.inline.hpp	2020-10-11 20:44:18.000018830 -0400
@@ -33,7 +33,7 @@
 
 #include <unistd.h>
 #include <sys/socket.h>
-#include <sys/poll.h>
+#include <poll.h>
 #include <netdb.h>
 
 inline void* os::thread_local_storage_at(int index) {
diff -Naur openjdk-8.265_p01/hotspot/src/os_cpu/linux_x86/vm/os_linux_x86.cpp openjdk-8.265_p01-copy/hotspot/src/os_cpu/linux_x86/vm/os_linux_x86.cpp
--- openjdk-8.265_p01/hotspot/src/os_cpu/linux_x86/vm/os_linux_x86.cpp	2020-10-11 15:53:08.472010359 -0400
+++ openjdk-8.265_p01-copy/hotspot/src/os_cpu/linux_x86/vm/os_linux_x86.cpp	2020-10-11 20:47:50.888018933 -0400
@@ -72,7 +72,6 @@
 # include <pwd.h>
 # include <poll.h>
 # include <ucontext.h>
-# include <fpu_control.h>
 
 #ifdef AMD64
 #define REG_SP REG_RSP
@@ -543,6 +542,9 @@
   ShouldNotReachHere();
 }
 
+#define _FPU_GETCW(cw) __asm__ __volatile__ ("fnstcw %0" : "=m" (*&cw))
+#define _FPU_SETCW(cw) __asm__ __volatile__ ("fldcw %0" : : "m" (*&cw))
+
 void os::Linux::init_thread_fpu_state(void) {
 #ifndef AMD64
   // set fpu to 53 bit precision
diff -Naur openjdk-8.265_p01/hotspot/src/os_cpu/linux_x86/vm/threadLS_linux_x86.hpp openjdk-8.265_p01-copy/hotspot/src/os_cpu/linux_x86/vm/threadLS_linux_x86.hpp
--- openjdk-8.265_p01/hotspot/src/os_cpu/linux_x86/vm/threadLS_linux_x86.hpp	2020-10-11 15:53:08.472010359 -0400
+++ openjdk-8.265_p01-copy/hotspot/src/os_cpu/linux_x86/vm/threadLS_linux_x86.hpp	2020-10-11 20:48:23.452018949 -0400
@@ -32,7 +32,9 @@
   // map stack pointer to thread pointer - see notes in threadLS_linux_x86.cpp
   #define SP_BITLENGTH  32
   #define PAGE_SHIFT    12
+  #ifndef PAGE_SIZE
   #define PAGE_SIZE     (1UL << PAGE_SHIFT)
+  #endif
   static Thread* _sp_map[1UL << (SP_BITLENGTH - PAGE_SHIFT)];
 
 public:
diff -Naur openjdk-8.265_p01/hotspot/src/share/vm/utilities/globalDefinitions_gcc.hpp openjdk-8.265_p01-copy/hotspot/src/share/vm/utilities/globalDefinitions_gcc.hpp
--- openjdk-8.265_p01/hotspot/src/share/vm/utilities/globalDefinitions_gcc.hpp	2020-10-11 15:53:08.572010359 -0400
+++ openjdk-8.265_p01-copy/hotspot/src/share/vm/utilities/globalDefinitions_gcc.hpp	2020-10-11 20:49:02.568018968 -0400
@@ -235,7 +235,7 @@
 #elif defined(__APPLE__)
 inline int g_isnan(double f) { return isnan(f); }
 #elif defined(LINUX) || defined(_ALLBSD_SOURCE)
-inline int g_isnan(float  f) { return isnanf(f); }
+inline int g_isnan(float  f) { return isnan(f); }
 inline int g_isnan(double f) { return isnan(f); }
 #else
 #error "missing platform-specific definition here"