src/hotspot/share/runtime/abstract_vm_version.cpp - platform/libcore - Git at Google

 /*
  * Copyright (c) 1998, 2019, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License version 2 only, as
  * published by the Free Software Foundation.
  *
  * This code is distributed in the hope that it will be useful, but WITHOUT
  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  * version 2 for more details (a copy is included in the LICENSE file that
  * accompanied this code).
  *
  * You should have received a copy of the GNU General Public License version
  * 2 along with this work; if not, write to the Free Software Foundation,
  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  *
  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  * or visit www.oracle.com if you need additional information or have any
  * questions.
  *
  */

 #include "precompiled.hpp"
 #include "compiler/compilerDefinitions.hpp"
 #include "runtime/arguments.hpp"
 #include "runtime/vm_version.hpp"
 #include "utilities/globalDefinitions.hpp"

 const char* Abstract_VM_Version::_s_vm_release = Abstract_VM_Version::vm_release();
 const char* Abstract_VM_Version::_s_internal_vm_info_string = Abstract_VM_Version::internal_vm_info_string();

 uint64_t Abstract_VM_Version::_features = 0;
 const char* Abstract_VM_Version::_features_string = "";

 bool Abstract_VM_Version::_supports_cx8 = false;
 bool Abstract_VM_Version::_supports_atomic_getset4 = false;
 bool Abstract_VM_Version::_supports_atomic_getset8 = false;
 bool Abstract_VM_Version::_supports_atomic_getadd4 = false;
 bool Abstract_VM_Version::_supports_atomic_getadd8 = false;
 unsigned int Abstract_VM_Version::_logical_processors_per_package = 1U;
 unsigned int Abstract_VM_Version::_L1_data_cache_line_size = 0;
 unsigned int Abstract_VM_Version::_data_cache_line_flush_size = 0;

 VirtualizationType Abstract_VM_Version::_detected_virtualization = NoDetectedVirtualization;

 #ifndef HOTSPOT_VERSION_STRING
   #error HOTSPOT_VERSION_STRING must be defined
 #endif

 #ifndef VERSION_FEATURE
   #error VERSION_FEATURE must be defined
 #endif
 #ifndef VERSION_INTERIM
   #error VERSION_INTERIM must be defined
 #endif
 #ifndef VERSION_UPDATE
   #error VERSION_UPDATE must be defined
 #endif
 #ifndef VERSION_PATCH
   #error VERSION_PATCH must be defined
 #endif
 #ifndef VERSION_BUILD
   #error VERSION_BUILD must be defined
 #endif

 #ifndef VERSION_STRING
   #error VERSION_STRING must be defined
 #endif

 #ifndef DEBUG_LEVEL
   #error DEBUG_LEVEL must be defined
 #endif

 #define VM_RELEASE HOTSPOT_VERSION_STRING

 // HOTSPOT_VERSION_STRING equals the JDK VERSION_STRING (unless overridden
 // in a standalone build).
 int Abstract_VM_Version::_vm_major_version = VERSION_FEATURE;
 int Abstract_VM_Version::_vm_minor_version = VERSION_INTERIM;
 int Abstract_VM_Version::_vm_security_version = VERSION_UPDATE;
 int Abstract_VM_Version::_vm_patch_version = VERSION_PATCH;
 int Abstract_VM_Version::_vm_build_number = VERSION_BUILD;

 #if defined(_LP64)
   #define VMLP "64-Bit "
 #else
   #define VMLP ""
 #endif

 #ifndef VMTYPE
   #ifdef TIERED
     #define VMTYPE "Server"
   #else // TIERED
   #ifdef ZERO
     #define VMTYPE "Zero"
   #else // ZERO
      #define VMTYPE COMPILER1_PRESENT("Client")   \
                     COMPILER2_PRESENT("Server")
   #endif // ZERO
   #endif // TIERED
 #endif

 #ifndef HOTSPOT_VM_DISTRO
   #error HOTSPOT_VM_DISTRO must be defined
 #endif
 #define VMNAME HOTSPOT_VM_DISTRO " " VMLP VMTYPE " VM"

 const char* Abstract_VM_Version::vm_name() {
   return VMNAME;
 }


 const char* Abstract_VM_Version::vm_vendor() {
 #ifdef VENDOR
   return VENDOR;
 #else
   return "Oracle Corporation";
 #endif
 }


 const char* Abstract_VM_Version::vm_info_string() {
   switch (Arguments::mode()) {
     case Arguments::_int:
       return UseSharedSpaces ? "interpreted mode, sharing" : "interpreted mode";
     case Arguments::_mixed:
       if (UseSharedSpaces) {
         if (UseAOT) {
           return "mixed mode, aot, sharing";
 #ifdef TIERED
         } else if(is_client_compilation_mode_vm()) {
           return "mixed mode, emulated-client, sharing";
 #endif
         } else {
           return "mixed mode, sharing";
          }
       } else {
         if (UseAOT) {
           return "mixed mode, aot";
 #ifdef TIERED
         } else if(is_client_compilation_mode_vm()) {
           return "mixed mode, emulated-client";
 #endif
         } else {
           return "mixed mode";
         }
       }
     case Arguments::_comp:
 #ifdef TIERED
       if (is_client_compilation_mode_vm()) {
          return UseSharedSpaces ? "compiled mode, emulated-client, sharing" : "compiled mode, emulated-client";
       }
 #endif
       return UseSharedSpaces ? "compiled mode, sharing"    : "compiled mode";
   };
   ShouldNotReachHere();
   return "";
 }

 // NOTE: do *not* use stringStream. this function is called by
 //       fatal error handler. if the crash is in native thread,
 //       stringStream cannot get resource allocated and will SEGV.
 const char* Abstract_VM_Version::vm_release() {
   return VM_RELEASE;
 }

 // NOTE: do *not* use stringStream. this function is called by
 //       fatal error handlers. if the crash is in native thread,
 //       stringStream cannot get resource allocated and will SEGV.
 const char* Abstract_VM_Version::jre_release_version() {
   return VERSION_STRING;
 }

 #define OS       LINUX_ONLY("linux")             \
                  WINDOWS_ONLY("windows")         \
                  SOLARIS_ONLY("solaris")         \
                  AIX_ONLY("aix")                 \
                  BSD_ONLY("bsd")

 #ifndef CPU
 #ifdef ZERO
 #define CPU      ZERO_LIBARCH
 #elif defined(PPC64)
 #if defined(VM_LITTLE_ENDIAN)
 #define CPU      "ppc64le"
 #else
 #define CPU      "ppc64"
 #endif // PPC64
 #else
 #define CPU      AARCH64_ONLY("aarch64")         \
                  AMD64_ONLY("amd64")             \
                  IA32_ONLY("x86")                \
                  IA64_ONLY("ia64")               \
                  S390_ONLY("s390")               \
                  SPARC_ONLY("sparc")
 #endif // !ZERO
 #endif // !CPU

 const char *Abstract_VM_Version::vm_platform_string() {
   return OS "-" CPU;
 }

 const char* Abstract_VM_Version::internal_vm_info_string() {
   #ifndef HOTSPOT_BUILD_USER
     #define HOTSPOT_BUILD_USER unknown
   #endif

   #ifndef HOTSPOT_BUILD_COMPILER
     #ifdef _MSC_VER
       #if _MSC_VER == 1600
         #define HOTSPOT_BUILD_COMPILER "MS VC++ 10.0 (VS2010)"
       #elif _MSC_VER == 1700
         #define HOTSPOT_BUILD_COMPILER "MS VC++ 11.0 (VS2012)"
       #elif _MSC_VER == 1800
         #define HOTSPOT_BUILD_COMPILER "MS VC++ 12.0 (VS2013)"
       #elif _MSC_VER == 1900
         #define HOTSPOT_BUILD_COMPILER "MS VC++ 14.0 (VS2015)"
       #elif _MSC_VER == 1911
         #define HOTSPOT_BUILD_COMPILER "MS VC++ 15.3 (VS2017)"
       #elif _MSC_VER == 1912
         #define HOTSPOT_BUILD_COMPILER "MS VC++ 15.5 (VS2017)"
       #elif _MSC_VER == 1913
         #define HOTSPOT_BUILD_COMPILER "MS VC++ 15.6 (VS2017)"
       #elif _MSC_VER == 1914
         #define HOTSPOT_BUILD_COMPILER "MS VC++ 15.7 (VS2017)"
       #elif _MSC_VER == 1915
         #define HOTSPOT_BUILD_COMPILER "MS VC++ 15.8 (VS2017)"
       #else
         #define HOTSPOT_BUILD_COMPILER "unknown MS VC++:" XSTR(_MSC_VER)
       #endif
     #elif defined(__SUNPRO_CC)
       #if __SUNPRO_CC == 0x580
         #define HOTSPOT_BUILD_COMPILER "Workshop 5.8"
       #elif __SUNPRO_CC == 0x590
         #define HOTSPOT_BUILD_COMPILER "Workshop 5.9"
       #elif __SUNPRO_CC == 0x5100
         #define HOTSPOT_BUILD_COMPILER "Sun Studio 12u1"
       #elif __SUNPRO_CC == 0x5120
         #define HOTSPOT_BUILD_COMPILER "Sun Studio 12u3"
       #elif __SUNPRO_CC == 0x5130
         #define HOTSPOT_BUILD_COMPILER "Sun Studio 12u4"
       #else
         #define HOTSPOT_BUILD_COMPILER "unknown Workshop:" XSTR(__SUNPRO_CC)
       #endif
     #elif defined(__clang_version__)
         #define HOTSPOT_BUILD_COMPILER "clang " __VERSION__
     #elif defined(__GNUC__)
         #define HOTSPOT_BUILD_COMPILER "gcc " __VERSION__
     #else
       #define HOTSPOT_BUILD_COMPILER "unknown compiler"
     #endif
   #endif

   #ifndef FLOAT_ARCH
     #if defined(__SOFTFP__)
       #define FLOAT_ARCH_STR "-sflt"
     #else
       #define FLOAT_ARCH_STR ""
     #endif
   #else
     #define FLOAT_ARCH_STR XSTR(FLOAT_ARCH)
   #endif

   #define INTERNAL_VERSION_SUFFIX VM_RELEASE ")" \
          " for " OS "-" CPU FLOAT_ARCH_STR \
          " JRE (" VERSION_STRING "), built on " __DATE__ " " __TIME__ \
          " by " XSTR(HOTSPOT_BUILD_USER) " with " HOTSPOT_BUILD_COMPILER

   return strcmp(DEBUG_LEVEL, "release") == 0
       ? VMNAME " (" INTERNAL_VERSION_SUFFIX
       : VMNAME " (" DEBUG_LEVEL " " INTERNAL_VERSION_SUFFIX;
 }

 const char *Abstract_VM_Version::vm_build_user() {
   return HOTSPOT_BUILD_USER;
 }

 const char *Abstract_VM_Version::jdk_debug_level() {
   return DEBUG_LEVEL;
 }

 const char *Abstract_VM_Version::printable_jdk_debug_level() {
   // Debug level is not printed for "release" builds
   return strcmp(DEBUG_LEVEL, "release") == 0 ? "" : DEBUG_LEVEL " ";
 }

 unsigned int Abstract_VM_Version::jvm_version() {
   return ((Abstract_VM_Version::vm_major_version() & 0xFF) << 24) |
          ((Abstract_VM_Version::vm_minor_version() & 0xFF) << 16) |
          ((Abstract_VM_Version::vm_security_version() & 0xFF) << 8) |
          (Abstract_VM_Version::vm_build_number() & 0xFF);
 }

 bool Abstract_VM_Version::print_matching_lines_from_file(const char* filename, outputStream* st, const char* keywords_to_match[]) {
   char line[500];
   FILE* fp = fopen(filename, "r");
   if (fp == NULL) {
     return false;
   }

   st->print_cr("Virtualization information:");
   while (fgets(line, sizeof(line), fp) != NULL) {
     int i = 0;
     while (keywords_to_match[i] != NULL) {
       if (strncmp(line, keywords_to_match[i], strlen(keywords_to_match[i])) == 0) {
         st->print("%s", line);
         break;
       }
       i++;
     }
   }
   fclose(fp);
   return true;
 }
	/*
	* Copyright (c) 1998, 2019, Oracle and/or its affiliates. All rights reserved.
	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
	*
	* This code is free software; you can redistribute it and/or modify it
	* under the terms of the GNU General Public License version 2 only, as
	* published by the Free Software Foundation.
	*
	* This code is distributed in the hope that it will be useful, but WITHOUT
	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
	* version 2 for more details (a copy is included in the LICENSE file that
	* accompanied this code).
	*
	* You should have received a copy of the GNU General Public License version
	* 2 along with this work; if not, write to the Free Software Foundation,
	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
	*
	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
	* or visit www.oracle.com if you need additional information or have any
	* questions.
	*
	*/

	#include "precompiled.hpp"
	#include "compiler/compilerDefinitions.hpp"
	#include "runtime/arguments.hpp"
	#include "runtime/vm_version.hpp"
	#include "utilities/globalDefinitions.hpp"

	const char* Abstract_VM_Version::_s_vm_release = Abstract_VM_Version::vm_release();
	const char* Abstract_VM_Version::_s_internal_vm_info_string = Abstract_VM_Version::internal_vm_info_string();

	uint64_t Abstract_VM_Version::_features = 0;
	const char* Abstract_VM_Version::_features_string = "";

	bool Abstract_VM_Version::_supports_cx8 = false;
	bool Abstract_VM_Version::_supports_atomic_getset4 = false;
	bool Abstract_VM_Version::_supports_atomic_getset8 = false;
	bool Abstract_VM_Version::_supports_atomic_getadd4 = false;
	bool Abstract_VM_Version::_supports_atomic_getadd8 = false;
	unsigned int Abstract_VM_Version::_logical_processors_per_package = 1U;
	unsigned int Abstract_VM_Version::_L1_data_cache_line_size = 0;
	unsigned int Abstract_VM_Version::_data_cache_line_flush_size = 0;

	VirtualizationType Abstract_VM_Version::_detected_virtualization = NoDetectedVirtualization;

	#ifndef HOTSPOT_VERSION_STRING
	#error HOTSPOT_VERSION_STRING must be defined
	#endif

	#ifndef VERSION_FEATURE
	#error VERSION_FEATURE must be defined
	#endif
	#ifndef VERSION_INTERIM
	#error VERSION_INTERIM must be defined
	#endif
	#ifndef VERSION_UPDATE
	#error VERSION_UPDATE must be defined
	#endif
	#ifndef VERSION_PATCH
	#error VERSION_PATCH must be defined
	#endif
	#ifndef VERSION_BUILD
	#error VERSION_BUILD must be defined
	#endif

	#ifndef VERSION_STRING
	#error VERSION_STRING must be defined
	#endif

	#ifndef DEBUG_LEVEL
	#error DEBUG_LEVEL must be defined
	#endif

	#define VM_RELEASE HOTSPOT_VERSION_STRING

	// HOTSPOT_VERSION_STRING equals the JDK VERSION_STRING (unless overridden
	// in a standalone build).
	int Abstract_VM_Version::_vm_major_version = VERSION_FEATURE;
	int Abstract_VM_Version::_vm_minor_version = VERSION_INTERIM;
	int Abstract_VM_Version::_vm_security_version = VERSION_UPDATE;
	int Abstract_VM_Version::_vm_patch_version = VERSION_PATCH;
	int Abstract_VM_Version::_vm_build_number = VERSION_BUILD;

	#if defined(_LP64)
	#define VMLP "64-Bit "
	#else
	#define VMLP ""
	#endif

	#ifndef VMTYPE
	#ifdef TIERED
	#define VMTYPE "Server"
	#else // TIERED
	#ifdef ZERO
	#define VMTYPE "Zero"
	#else // ZERO
	#define VMTYPE COMPILER1_PRESENT("Client") \
	COMPILER2_PRESENT("Server")
	#endif // ZERO
	#endif // TIERED
	#endif

	#ifndef HOTSPOT_VM_DISTRO
	#error HOTSPOT_VM_DISTRO must be defined
	#endif
	#define VMNAME HOTSPOT_VM_DISTRO " " VMLP VMTYPE " VM"

	const char* Abstract_VM_Version::vm_name() {
	return VMNAME;
	}


	const char* Abstract_VM_Version::vm_vendor() {
	#ifdef VENDOR
	return VENDOR;
	#else
	return "Oracle Corporation";
	#endif
	}


	const char* Abstract_VM_Version::vm_info_string() {
	switch (Arguments::mode()) {
	case Arguments::_int:
	return UseSharedSpaces ? "interpreted mode, sharing" : "interpreted mode";
	case Arguments::_mixed:
	if (UseSharedSpaces) {
	if (UseAOT) {
	return "mixed mode, aot, sharing";
	#ifdef TIERED
	} else if(is_client_compilation_mode_vm()) {
	return "mixed mode, emulated-client, sharing";
	#endif
	} else {
	return "mixed mode, sharing";
	}
	} else {
	if (UseAOT) {
	return "mixed mode, aot";
	#ifdef TIERED
	} else if(is_client_compilation_mode_vm()) {
	return "mixed mode, emulated-client";
	#endif
	} else {
	return "mixed mode";
	}
	}
	case Arguments::_comp:
	#ifdef TIERED
	if (is_client_compilation_mode_vm()) {
	return UseSharedSpaces ? "compiled mode, emulated-client, sharing" : "compiled mode, emulated-client";
	}
	#endif
	return UseSharedSpaces ? "compiled mode, sharing" : "compiled mode";
	};
	ShouldNotReachHere();
	return "";
	}

	// NOTE: do not use stringStream. this function is called by
	// fatal error handler. if the crash is in native thread,
	// stringStream cannot get resource allocated and will SEGV.
	const char* Abstract_VM_Version::vm_release() {
	return VM_RELEASE;
	}

	// NOTE: do not use stringStream. this function is called by
	// fatal error handlers. if the crash is in native thread,
	// stringStream cannot get resource allocated and will SEGV.
	const char* Abstract_VM_Version::jre_release_version() {
	return VERSION_STRING;
	}

	#define OS LINUX_ONLY("linux") \
	WINDOWS_ONLY("windows") \
	SOLARIS_ONLY("solaris") \
	AIX_ONLY("aix") \
	BSD_ONLY("bsd")

	#ifndef CPU
	#ifdef ZERO
	#define CPU ZERO_LIBARCH
	#elif defined(PPC64)
	#if defined(VM_LITTLE_ENDIAN)
	#define CPU "ppc64le"
	#else
	#define CPU "ppc64"
	#endif // PPC64
	#else
	#define CPU AARCH64_ONLY("aarch64") \
	AMD64_ONLY("amd64") \
	IA32_ONLY("x86") \
	IA64_ONLY("ia64") \
	S390_ONLY("s390") \
	SPARC_ONLY("sparc")
	#endif // !ZERO
	#endif // !CPU

	const char *Abstract_VM_Version::vm_platform_string() {
	return OS "-" CPU;
	}

	const char* Abstract_VM_Version::internal_vm_info_string() {
	#ifndef HOTSPOT_BUILD_USER
	#define HOTSPOT_BUILD_USER unknown
	#endif

	#ifndef HOTSPOT_BUILD_COMPILER
	#ifdef _MSC_VER
	#if _MSC_VER == 1600
	#define HOTSPOT_BUILD_COMPILER "MS VC++ 10.0 (VS2010)"
	#elif _MSC_VER == 1700
	#define HOTSPOT_BUILD_COMPILER "MS VC++ 11.0 (VS2012)"
	#elif _MSC_VER == 1800
	#define HOTSPOT_BUILD_COMPILER "MS VC++ 12.0 (VS2013)"
	#elif _MSC_VER == 1900
	#define HOTSPOT_BUILD_COMPILER "MS VC++ 14.0 (VS2015)"
	#elif _MSC_VER == 1911
	#define HOTSPOT_BUILD_COMPILER "MS VC++ 15.3 (VS2017)"
	#elif _MSC_VER == 1912
	#define HOTSPOT_BUILD_COMPILER "MS VC++ 15.5 (VS2017)"
	#elif _MSC_VER == 1913
	#define HOTSPOT_BUILD_COMPILER "MS VC++ 15.6 (VS2017)"
	#elif _MSC_VER == 1914
	#define HOTSPOT_BUILD_COMPILER "MS VC++ 15.7 (VS2017)"
	#elif _MSC_VER == 1915
	#define HOTSPOT_BUILD_COMPILER "MS VC++ 15.8 (VS2017)"
	#else
	#define HOTSPOT_BUILD_COMPILER "unknown MS VC++:" XSTR(_MSC_VER)
	#endif
	#elif defined(__SUNPRO_CC)
	#if __SUNPRO_CC == 0x580
	#define HOTSPOT_BUILD_COMPILER "Workshop 5.8"
	#elif __SUNPRO_CC == 0x590
	#define HOTSPOT_BUILD_COMPILER "Workshop 5.9"
	#elif __SUNPRO_CC == 0x5100
	#define HOTSPOT_BUILD_COMPILER "Sun Studio 12u1"
	#elif __SUNPRO_CC == 0x5120
	#define HOTSPOT_BUILD_COMPILER "Sun Studio 12u3"
	#elif __SUNPRO_CC == 0x5130
	#define HOTSPOT_BUILD_COMPILER "Sun Studio 12u4"
	#else
	#define HOTSPOT_BUILD_COMPILER "unknown Workshop:" XSTR(__SUNPRO_CC)
	#endif
	#elif defined(__clang_version__)
	#define HOTSPOT_BUILD_COMPILER "clang " __VERSION__
	#elif defined(__GNUC__)
	#define HOTSPOT_BUILD_COMPILER "gcc " __VERSION__
	#else
	#define HOTSPOT_BUILD_COMPILER "unknown compiler"
	#endif
	#endif

	#ifndef FLOAT_ARCH
	#if defined(__SOFTFP__)
	#define FLOAT_ARCH_STR "-sflt"
	#else
	#define FLOAT_ARCH_STR ""
	#endif
	#else
	#define FLOAT_ARCH_STR XSTR(FLOAT_ARCH)
	#endif

	#define INTERNAL_VERSION_SUFFIX VM_RELEASE ")" \
	" for " OS "-" CPU FLOAT_ARCH_STR \
	" JRE (" VERSION_STRING "), built on " __DATE__ " " __TIME__ \
	" by " XSTR(HOTSPOT_BUILD_USER) " with " HOTSPOT_BUILD_COMPILER

	return strcmp(DEBUG_LEVEL, "release") == 0
	? VMNAME " (" INTERNAL_VERSION_SUFFIX
	: VMNAME " (" DEBUG_LEVEL " " INTERNAL_VERSION_SUFFIX;
	}

	const char *Abstract_VM_Version::vm_build_user() {
	return HOTSPOT_BUILD_USER;
	}

	const char *Abstract_VM_Version::jdk_debug_level() {
	return DEBUG_LEVEL;
	}

	const char *Abstract_VM_Version::printable_jdk_debug_level() {
	// Debug level is not printed for "release" builds
	return strcmp(DEBUG_LEVEL, "release") == 0 ? "" : DEBUG_LEVEL " ";
	}

	unsigned int Abstract_VM_Version::jvm_version() {
	return ((Abstract_VM_Version::vm_major_version() & 0xFF) << 24) \|
	((Abstract_VM_Version::vm_minor_version() & 0xFF) << 16) \|
	((Abstract_VM_Version::vm_security_version() & 0xFF) << 8) \|
	(Abstract_VM_Version::vm_build_number() & 0xFF);
	}

	bool Abstract_VM_Version::print_matching_lines_from_file(const char* filename, outputStream* st, const char* keywords_to_match[]) {
	char line[500];
	FILE* fp = fopen(filename, "r");
	if (fp == NULL) {
	return false;
	}

	st->print_cr("Virtualization information:");
	while (fgets(line, sizeof(line), fp) != NULL) {
	int i = 0;
	while (keywords_to_match[i] != NULL) {
	if (strncmp(line, keywords_to_match[i], strlen(keywords_to_match[i])) == 0) {
	st->print("%s", line);
	break;
	}
	i++;
	}
	}
	fclose(fp);
	return true;
	}