gdb/testsuite/gdb.trace/unavailable.cc - third_party/binutils-gdb - Git at Google

 /* This testcase is part of GDB, the GNU debugger.

    Copyright 2002-2024 Free Software Foundation, Inc.

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 3 of the License, or
    (at your option) any later version.

    This program 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 for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */

 #include <stdlib.h>
 #include <string.h>

 /* Test program partial trace data visualization.  */

 /* Typedefs.  */

 typedef struct TEST_STRUCT {
   char   memberc;
   int    memberi;
   float  memberf;
   double memberd;
 } test_struct;

 struct small_struct
 {
   int member;
 };

 struct small_struct_b : public small_struct
 {
 };

 typedef int test_array [4];

 /* Global variables to be collected.  */

 char         globalc;
 int          globali;
 float        globalf;
 double       globald;
 test_struct  globalstruct;
 test_struct *globalp;
 int          globalarr[16];
 small_struct g_smallstruct;
 small_struct_b g_smallstruct_b;

 /* Strings.  */

 const char g_const_string[] = "hello world";
 char g_string_unavail[sizeof (g_const_string)];
 char g_string_partial[sizeof (g_const_string)];
 const char *g_string_p;

 /* Used to check that <unavailable> is not the same as 0 in array
    element repetitions.  */

 struct tuple
 {
   int a;
   int b;
 };

 struct tuple tarray[8];

 /* Test for overcollection.  GDB used to merge memory ranges to
    collect if they were close enough --- say, collect `a' and 'c'
    below, and you'd get 'b' as well.  This had been presumably done to
    cater for some target's inefficient trace buffer layout, but it is
    really not GDB's business to assume how the target manages its
    buffer.  If the target wants to overcollect, that's okay, since it
    knows what is and what isn't safe to touch (think memory mapped
    registers), and knows it's buffer layout.

    The test assumes these three variables are laid out consecutively
    in memory.  Unfortunately, we can't use an array instead, since the
    agent expression generator does not even do constant folding,
    meaning that anything that's more complicated than collecting a
    global will generate an agent expression action to evaluate on the
    target, instead of a simple "collect memory" action.  */
 int a;
 int b;
 int c;

 /* Random tests.  */

 struct StructA
 {
   int a, b;
   int array[10000];
   void *ptr;
   int bitfield:1;
 };

 struct StructB
 {
   int d, ef;
   StructA struct_a;
   int s:1;
   static StructA static_struct_a;
   const char *string;
 };

 /* References.  */

 int g_int;
 int &g_ref = g_int;

 struct StructRef
 {
   StructRef (unsigned int val) : ref(d) {}

   void clear ()
   {
     d = 0;
   }

   unsigned int d;
   unsigned int &ref;
 };

 struct StructB struct_b;
 struct StructA StructB::static_struct_a;

 StructRef g_structref(0x12345678);
 StructRef *g_structref_p = &g_structref;

 class Base
 {
 protected:
   int x;

 public:
   Base(void) { x = 2; };
 };

 class Middle: public virtual Base
 {
 protected:
   int y;

 public:
   Middle(void): Base() { y = 3; };
 };

 class Derived: public virtual Middle {
 protected:
   int z;

 public:
   Derived(void): Middle() { z = 4; };
 };

 Derived derived_unavail;
 Derived derived_partial;
 Derived derived_whole;

 struct Virtual {
   int z;

   virtual ~Virtual() {}
 };

 Virtual virtual_partial;
 Virtual *virtualp = &virtual_partial;

 /* Test functions.  */

 static void
 begin ()	/* called before anything else */
 {
 }

 static void
 end ()		/* called after everything else */
 {
 }

 /* Test (not) collecting args.  */

 int
 args_test_func (char   argc,
 		int    argi,
 		float  argf,
 		double argd,
 		test_struct argstruct,
 		int argarray[4])
 {
   int i;

   i =  (int) argc + argi + argf + argd + argstruct.memberi + argarray[1];

   return i;
 }

 /* Test (not) collecting array args.  */

 /* Test (not) collecting locals.  */

 int
 local_test_func ()
 {
   char        locc  = 11;
   int         loci  = 12;
   float       locf  = 13.3;
   double      locd  = 14.4;
   test_struct locst;
   int         locar[4];
   int         i;
   struct localstruct {} locdefst;

   locst.memberc  = 15;
   locst.memberi  = 16;
   locst.memberf  = 17.7;
   locst.memberd  = 18.8;
   locar[0] = 121;
   locar[1] = 122;
   locar[2] = 123;
   locar[3] = 124;

   i = /* set local_test_func tracepoint here */
     (int) locc + loci + locf + locd + locst.memberi + locar[1];

   return i;
 }

 /* Test collecting register locals.  */

 int
 reglocal_test_func ()
 {
   register char        locc = 11;
   register int         loci = 12;
   register float       locf = 13.3;
   register double      locd = 14.4;
   register test_struct locst;
   register int         locar[4];
   int                  i;

   locst.memberc  = 15;
   locst.memberi  = 16;
   locst.memberf  = 17.7;
   locst.memberd  = 18.8;
   locar[0] = 121;
   locar[1] = 122;
   locar[2] = 123;
   locar[3] = 124;

   i = /* set reglocal_test_func tracepoint here */
     (int) locc + loci + locf + locd + locst.memberi + locar[1];

   return i;
 }

 /* Test collecting static locals.  */

 int
 statlocal_test_func ()
 {
   static   char        locc;
   static   int         loci;
   static   float       locf;
   static   double      locd;
   static   test_struct locst;
   static   int         locar[4];
   int                  i;

   locc = 11;
   loci = 12;
   locf = 13.3;
   locd = 14.4;
   locst.memberc = 15;
   locst.memberi = 16;
   locst.memberf = 17.7;
   locst.memberd = 18.8;
   locar[0] = 121;
   locar[1] = 122;
   locar[2] = 123;
   locar[3] = 124;

   i = /* set statlocal_test_func tracepoint here */
     (int) locc + loci + locf + locd + locst.memberi + locar[1];

   /* Set static locals back to zero so collected values are clearly special. */
   locc = 0;
   loci = 0;
   locf = 0;
   locd = 0;
   locst.memberc = 0;
   locst.memberi = 0;
   locst.memberf = 0;
   locst.memberd = 0;
   locar[0] = 0;
   locar[1] = 0;
   locar[2] = 0;
   locar[3] = 0;

   return i;
 }

 int
 globals_test_func ()
 {
   int i = 0;

   i += globalc + globali + globalf + globald;
   i += globalstruct.memberc + globalstruct.memberi;
   i += globalstruct.memberf + globalstruct.memberd;
   i += globalarr[1];

   return i;	/* set globals_test_func tracepoint here */
 }

 int
 main (int argc, char **argv, char **envp)
 {
   int         i = 0;
   test_struct mystruct;
   int         myarray[4];

   begin ();
   /* Assign collectable values to global variables.  */
   globalc = 71;
   globali = 72;
   globalf = 73.3;
   globald = 74.4;
   globalstruct.memberc = 81;
   globalstruct.memberi = 82;
   globalstruct.memberf = 83.3;
   globalstruct.memberd = 84.4;
   globalp = &globalstruct;

   for (i = 0; i < 15; i++)
     globalarr[i] = i;

   mystruct.memberc = 101;
   mystruct.memberi = 102;
   mystruct.memberf = 103.3;
   mystruct.memberd = 104.4;
   myarray[0] = 111;
   myarray[1] = 112;
   myarray[2] = 113;
   myarray[3] = 114;

   g_int = 123;
   memset (&struct_b, 0xaa, sizeof struct_b);
   memset (&struct_b.static_struct_a, 0xaa, sizeof struct_b.static_struct_a);
   struct_b.string = g_const_string;
   memcpy (g_string_unavail, g_const_string, sizeof (g_const_string));
   memcpy (g_string_partial, g_const_string, sizeof (g_const_string));
   g_string_p = g_const_string;
   a = 1; b = 2; c = 3;

   /* Call test functions, so they can be traced and data collected.  */
   i = 0;
   i += args_test_func (1, 2, 3.3, 4.4, mystruct, myarray);
   i += local_test_func ();
   i += reglocal_test_func ();
   i += statlocal_test_func ();
   i += globals_test_func ();

   /* Set 'em back to zero, so that the collected values will be
      distinctly different from the "realtime" (end of test) values.  */

   globalc = 0;
   globali = 0;
   globalf = 0;
   globald = 0;
   globalstruct.memberc = 0;
   globalstruct.memberi = 0;
   globalstruct.memberf = 0;
   globalstruct.memberd = 0;
   globalp = 0;
   for (i = 0; i < 15; i++)
     globalarr[i] = 0;

   memset (&struct_b, 0, sizeof struct_b);
   memset (&struct_b.static_struct_a, 0, sizeof struct_b.static_struct_a);
   struct_b.string = NULL;
   memset (g_string_unavail, 0, sizeof (g_string_unavail));
   memset (g_string_partial, 0, sizeof (g_string_partial));
   g_string_p = NULL;

   a = b = c = 0;

   g_int = 0;

   g_structref.clear ();
   g_structref_p = NULL;

   end ();
   return 0;
 }
	/* This testcase is part of GDB, the GNU debugger.

	Copyright 2002-2024 Free Software Foundation, Inc.

	This program is free software; you can redistribute it and/or modify
	it under the terms of the GNU General Public License as published by
	the Free Software Foundation; either version 3 of the License, or
	(at your option) any later version.

	This program 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 for more details.

	You should have received a copy of the GNU General Public License
	along with this program. If not, see <http://www.gnu.org/licenses/>. */

	#include <stdlib.h>
	#include <string.h>

	/* Test program partial trace data visualization. */

	/* Typedefs. */

	typedef struct TEST_STRUCT {
	char memberc;
	int memberi;
	float memberf;
	double memberd;
	} test_struct;

	struct small_struct
	{
	int member;
	};

	struct small_struct_b : public small_struct
	{
	};

	typedef int test_array [4];

	/* Global variables to be collected. */

	char globalc;
	int globali;
	float globalf;
	double globald;
	test_struct globalstruct;
	test_struct *globalp;
	int globalarr[16];
	small_struct g_smallstruct;
	small_struct_b g_smallstruct_b;

	/* Strings. */

	const char g_const_string[] = "hello world";
	char g_string_unavail[sizeof (g_const_string)];
	char g_string_partial[sizeof (g_const_string)];
	const char *g_string_p;

	/* Used to check that <unavailable> is not the same as 0 in array
	element repetitions. */

	struct tuple
	{
	int a;
	int b;
	};

	struct tuple tarray[8];

	/* Test for overcollection. GDB used to merge memory ranges to
	collect if they were close enough --- say, collect `a' and 'c'
	below, and you'd get 'b' as well. This had been presumably done to
	cater for some target's inefficient trace buffer layout, but it is
	really not GDB's business to assume how the target manages its
	buffer. If the target wants to overcollect, that's okay, since it
	knows what is and what isn't safe to touch (think memory mapped
	registers), and knows it's buffer layout.

	The test assumes these three variables are laid out consecutively
	in memory. Unfortunately, we can't use an array instead, since the
	agent expression generator does not even do constant folding,
	meaning that anything that's more complicated than collecting a
	global will generate an agent expression action to evaluate on the
	target, instead of a simple "collect memory" action. */
	int a;
	int b;
	int c;

	/* Random tests. */

	struct StructA
	{
	int a, b;
	int array[10000];
	void *ptr;
	int bitfield:1;
	};

	struct StructB
	{
	int d, ef;
	StructA struct_a;
	int s:1;
	static StructA static_struct_a;
	const char *string;
	};

	/* References. */

	int g_int;
	int &g_ref = g_int;

	struct StructRef
	{
	StructRef (unsigned int val) : ref(d) {}

	void clear ()
	{
	d = 0;
	}

	unsigned int d;
	unsigned int &ref;
	};

	struct StructB struct_b;
	struct StructA StructB::static_struct_a;

	StructRef g_structref(0x12345678);
	StructRef *g_structref_p = &g_structref;

	class Base
	{
	protected:
	int x;

	public:
	Base(void) { x = 2; };
	};

	class Middle: public virtual Base
	{
	protected:
	int y;

	public:
	Middle(void): Base() { y = 3; };
	};

	class Derived: public virtual Middle {
	protected:
	int z;

	public:
	Derived(void): Middle() { z = 4; };
	};

	Derived derived_unavail;
	Derived derived_partial;
	Derived derived_whole;

	struct Virtual {
	int z;

	virtual ~Virtual() {}
	};

	Virtual virtual_partial;
	Virtual *virtualp = &virtual_partial;

	/* Test functions. */

	static void
	begin () /* called before anything else */
	{
	}

	static void
	end () /* called after everything else */
	{
	}

	/* Test (not) collecting args. */

	int
	args_test_func (char argc,
	int argi,
	float argf,
	double argd,
	test_struct argstruct,
	int argarray[4])
	{
	int i;

	i = (int) argc + argi + argf + argd + argstruct.memberi + argarray[1];

	return i;
	}

	/* Test (not) collecting array args. */

	/* Test (not) collecting locals. */

	int
	local_test_func ()
	{
	char locc = 11;
	int loci = 12;
	float locf = 13.3;
	double locd = 14.4;
	test_struct locst;
	int locar[4];
	int i;
	struct localstruct {} locdefst;

	locst.memberc = 15;
	locst.memberi = 16;
	locst.memberf = 17.7;
	locst.memberd = 18.8;
	locar[0] = 121;
	locar[1] = 122;
	locar[2] = 123;
	locar[3] = 124;

	i = /* set local_test_func tracepoint here */
	(int) locc + loci + locf + locd + locst.memberi + locar[1];

	return i;
	}

	/* Test collecting register locals. */

	int
	reglocal_test_func ()
	{
	register char locc = 11;
	register int loci = 12;
	register float locf = 13.3;
	register double locd = 14.4;
	register test_struct locst;
	register int locar[4];
	int i;

	locst.memberc = 15;
	locst.memberi = 16;
	locst.memberf = 17.7;
	locst.memberd = 18.8;
	locar[0] = 121;
	locar[1] = 122;
	locar[2] = 123;
	locar[3] = 124;

	i = /* set reglocal_test_func tracepoint here */
	(int) locc + loci + locf + locd + locst.memberi + locar[1];

	return i;
	}

	/* Test collecting static locals. */

	int
	statlocal_test_func ()
	{
	static char locc;
	static int loci;
	static float locf;
	static double locd;
	static test_struct locst;
	static int locar[4];
	int i;

	locc = 11;
	loci = 12;
	locf = 13.3;
	locd = 14.4;
	locst.memberc = 15;
	locst.memberi = 16;
	locst.memberf = 17.7;
	locst.memberd = 18.8;
	locar[0] = 121;
	locar[1] = 122;
	locar[2] = 123;
	locar[3] = 124;

	i = /* set statlocal_test_func tracepoint here */
	(int) locc + loci + locf + locd + locst.memberi + locar[1];

	/* Set static locals back to zero so collected values are clearly special. */
	locc = 0;
	loci = 0;
	locf = 0;
	locd = 0;
	locst.memberc = 0;
	locst.memberi = 0;
	locst.memberf = 0;
	locst.memberd = 0;
	locar[0] = 0;
	locar[1] = 0;
	locar[2] = 0;
	locar[3] = 0;

	return i;
	}

	int
	globals_test_func ()
	{
	int i = 0;

	i += globalc + globali + globalf + globald;
	i += globalstruct.memberc + globalstruct.memberi;
	i += globalstruct.memberf + globalstruct.memberd;
	i += globalarr[1];

	return i; /* set globals_test_func tracepoint here */
	}

	int
	main (int argc, char argv, char envp)
	{
	int i = 0;
	test_struct mystruct;
	int myarray[4];

	begin ();
	/* Assign collectable values to global variables. */
	globalc = 71;
	globali = 72;
	globalf = 73.3;
	globald = 74.4;
	globalstruct.memberc = 81;
	globalstruct.memberi = 82;
	globalstruct.memberf = 83.3;
	globalstruct.memberd = 84.4;
	globalp = &globalstruct;

	for (i = 0; i < 15; i++)
	globalarr[i] = i;

	mystruct.memberc = 101;
	mystruct.memberi = 102;
	mystruct.memberf = 103.3;
	mystruct.memberd = 104.4;
	myarray[0] = 111;
	myarray[1] = 112;
	myarray[2] = 113;
	myarray[3] = 114;

	g_int = 123;
	memset (&struct_b, 0xaa, sizeof struct_b);
	memset (&struct_b.static_struct_a, 0xaa, sizeof struct_b.static_struct_a);
	struct_b.string = g_const_string;
	memcpy (g_string_unavail, g_const_string, sizeof (g_const_string));
	memcpy (g_string_partial, g_const_string, sizeof (g_const_string));
	g_string_p = g_const_string;
	a = 1; b = 2; c = 3;

	/* Call test functions, so they can be traced and data collected. */
	i = 0;
	i += args_test_func (1, 2, 3.3, 4.4, mystruct, myarray);
	i += local_test_func ();
	i += reglocal_test_func ();
	i += statlocal_test_func ();
	i += globals_test_func ();

	/* Set 'em back to zero, so that the collected values will be
	distinctly different from the "realtime" (end of test) values. */

	globalc = 0;
	globali = 0;
	globalf = 0;
	globald = 0;
	globalstruct.memberc = 0;
	globalstruct.memberi = 0;
	globalstruct.memberf = 0;
	globalstruct.memberd = 0;
	globalp = 0;
	for (i = 0; i < 15; i++)
	globalarr[i] = 0;

	memset (&struct_b, 0, sizeof struct_b);
	memset (&struct_b.static_struct_a, 0, sizeof struct_b.static_struct_a);
	struct_b.string = NULL;
	memset (g_string_unavail, 0, sizeof (g_string_unavail));
	memset (g_string_partial, 0, sizeof (g_string_partial));
	g_string_p = NULL;

	a = b = c = 0;

	g_int = 0;

	g_structref.clear ();
	g_structref_p = NULL;

	end ();
	return 0;
	}