[RFA]: testsuite/gdb.base/miscexprs.*

[RFA]: testsuite/gdb.base/miscexprs.*

[Corinna Vinschen]

Hi,

on my target I have the same problem with the very small (2K) stack
when running miscexprs.exp as I already had with call-ar-st.exp.

I would like to propose the following patch, which adds the ability
to extend miscexprs.exp for targets, which also suffer from the
small stack.  I added a compiler switch to define the preprocessor
symbol `STORAGE', which by default is set to empty. A target
specific conditional can be used for setting it to "static", to
allow running the tests with the datastructures allocated in the
global data area instead of on the stack.  Obviously, miscexprs.exp
in the below incarantion just contains such a conditional only for
the target I'm just working on...

Corinna


2001-10-31  Corinna Vinschen  <vinschen@redhat.com>

	* gdb.base/miscexprs.c (main): Add usage of preprocessor
	symbol `STORAGE' to allow to choose the storage class of
	the local datastructures.
	* gdb.base/miscexprs.exp: Handle setting a `-DSTORAGE=...'
	compiler directive.

Index: miscexprs.c
===================================================================
RCS file: /cvs/src/src/gdb/testsuite/gdb.base/miscexprs.c,v
retrieving revision 1.1.1.2
diff -u -p -r1.1.1.2 miscexprs.c
--- miscexprs.c	1999/04/26 18:27:11	1.1.1.2
+++ miscexprs.c	2001/10/31 16:43:01
@@ -7,27 +7,27 @@ marker1 ()
 int
 main ()
 {
-  struct {
+  STORAGE struct {
     char c[100];
   } cbig;
 
-  struct {
+  STORAGE struct {
     int i[800];
   } ibig;
 
-  struct {
+  STORAGE struct {
     long l[900];
   } lbig;
 
-  struct {
+  STORAGE struct {
     float f[200];
   } fbig;
 
-  struct {
+  STORAGE struct {
     double d[300];
   } dbig;
 
-  struct {
+  STORAGE struct {
     short s[400];
   } sbig;
 
Index: miscexprs.exp
===================================================================
RCS file: /cvs/src/src/gdb/testsuite/gdb.base/miscexprs.exp,v
retrieving revision 1.5
diff -u -p -r1.5 miscexprs.exp
--- miscexprs.exp	2001/03/06 08:21:50	1.5
+++ miscexprs.exp	2001/10/31 16:43:01
@@ -30,6 +30,17 @@ if $tracelevel then {
         strace $tracelevel
         }
 
+# By default, the datastructures are allocated on the stack.  For targets
+# with very small stack, that will not work.  In that case, just set
+# storage to `-DSTORAGE=static' which changes the datastructures to be
+# allocated in data segment.
+set storage "-DSTORAGE="
+if [istarget "stormy16-*-*"] then {
+    set storage "-DSTORAGE=static"
+}
+
+set additional_flags "additional_flags=-w ${storage}"
+
 #
 # test running programs
 #
@@ -40,7 +51,7 @@ set testfile "miscexprs"
 set srcfile ${testfile}.c
 set binfile ${objdir}/${subdir}/${testfile}
 
-if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug additional_flags=-w}] != "" } {
+if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable [list debug ${additional_flags}]] != "" } {
     gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."
 }
 

Re: [RFA]: testsuite/gdb.base/miscexprs.*

[Michael Snyder]

Corinna Vinschen wrote:
> 
> Hi,
> 
> on my target I have the same problem with the very small (2K) stack
> when running miscexprs.exp as I already had with call-ar-st.exp.
> 
> I would like to propose the following patch, which adds the ability
> to extend miscexprs.exp for targets, which also suffer from the
> small stack.  I added a compiler switch to define the preprocessor
> symbol `STORAGE', which by default is set to empty. A target
> specific conditional can be used for setting it to "static", to
> allow running the tests with the datastructures allocated in the
> global data area instead of on the stack.  Obviously, miscexprs.exp
> in the below incarantion just contains such a conditional only for
> the target I'm just working on...

This is a good step, and I'm in favor of accepting it.
I'd just like to suggest that an even better approach
might be to add a dejagnu variable that could be defined
in the baseboard file, rather than put a target ifdef in
the testsuite script.

Something like this:
baseboard file:
  set_board_info gdb, small_stack_section, 1
  set_board_info gdb, small_data_section, 1    // future extension
testsuite file:
  if [target_info exists gdb,small_stack_section] {
     set storage "-DSTORAGE=static"
  }

> 
> Corinna
> 
> 2001-10-31  Corinna Vinschen  <vinschen@redhat.com>
> 
>         * gdb.base/miscexprs.c (main): Add usage of preprocessor
>         symbol `STORAGE' to allow to choose the storage class of
>         the local datastructures.
>         * gdb.base/miscexprs.exp: Handle setting a `-DSTORAGE=...'
>         compiler directive.
> 
> Index: miscexprs.c
> ===================================================================
> RCS file: /cvs/src/src/gdb/testsuite/gdb.base/miscexprs.c,v
> retrieving revision 1.1.1.2
> diff -u -p -r1.1.1.2 miscexprs.c
> --- miscexprs.c 1999/04/26 18:27:11     1.1.1.2
> +++ miscexprs.c 2001/10/31 16:43:01
> @@ -7,27 +7,27 @@ marker1 ()
>  int
>  main ()
>  {
> -  struct {
> +  STORAGE struct {
>      char c[100];
>    } cbig;
> 
> -  struct {
> +  STORAGE struct {
>      int i[800];
>    } ibig;
> 
> -  struct {
> +  STORAGE struct {
>      long l[900];
>    } lbig;
> 
> -  struct {
> +  STORAGE struct {
>      float f[200];
>    } fbig;
> 
> -  struct {
> +  STORAGE struct {
>      double d[300];
>    } dbig;
> 
> -  struct {
> +  STORAGE struct {
>      short s[400];
>    } sbig;
> 
> Index: miscexprs.exp
> ===================================================================
> RCS file: /cvs/src/src/gdb/testsuite/gdb.base/miscexprs.exp,v
> retrieving revision 1.5
> diff -u -p -r1.5 miscexprs.exp
> --- miscexprs.exp       2001/03/06 08:21:50     1.5
> +++ miscexprs.exp       2001/10/31 16:43:01
> @@ -30,6 +30,17 @@ if $tracelevel then {
>          strace $tracelevel
>          }
> 
> +# By default, the datastructures are allocated on the stack.  For targets
> +# with very small stack, that will not work.  In that case, just set
> +# storage to `-DSTORAGE=static' which changes the datastructures to be
> +# allocated in data segment.
> +set storage "-DSTORAGE="
> +if [istarget "stormy16-*-*"] then {
> +    set storage "-DSTORAGE=static"
> +}
> +
> +set additional_flags "additional_flags=-w ${storage}"
> +
>  #
>  # test running programs
>  #
> @@ -40,7 +51,7 @@ set testfile "miscexprs"
>  set srcfile ${testfile}.c
>  set binfile ${objdir}/${subdir}/${testfile}
> 
> -if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug additional_flags=-w}] != "" } {
> +if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable [list debug ${additional_flags}]] != "" } {
>      gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."
>  }
>

Re: [RFA]: testsuite/gdb.base/miscexprs.*

[Corinna Vinschen]

On Wed, Oct 31, 2001 at 11:40:08AM -0800, Michael Snyder wrote:
> Corinna Vinschen wrote:
> > on my target I have the same problem with the very small (2K) stack
> > when running miscexprs.exp as I already had with call-ar-st.exp.
> > 
> > I would like to propose the following patch, which adds the ability
> > to extend miscexprs.exp for targets, which also suffer from the
> > small stack.  I added a compiler switch to define the preprocessor
> > symbol `STORAGE', which by default is set to empty. A target
> > specific conditional can be used for setting it to "static", to
> > allow running the tests with the datastructures allocated in the
> > global data area instead of on the stack.  Obviously, miscexprs.exp
> > in the below incarantion just contains such a conditional only for
> > the target I'm just working on...
> 
> This is a good step, and I'm in favor of accepting it.
> I'd just like to suggest that an even better approach
> might be to add a dejagnu variable that could be defined
> in the baseboard file, rather than put a target ifdef in
> the testsuite script.
> 
> Something like this:
> baseboard file:
>   set_board_info gdb, small_stack_section, 1
>   set_board_info gdb, small_data_section, 1    // future extension
> testsuite file:
>   if [target_info exists gdb,small_stack_section] {
>      set storage "-DSTORAGE=static"
>   }

Thanks for the suggestion!  I like it so much that I immediately
changed my patch.  The new patch is below.

Corinna

2001-10-31  Corinna Vinschen  <vinschen@redhat.com>

	* gdb.base/miscexprs.c (main): Add usage of preprocessor
	symbol `STORAGE' to allow to choose the storage class of
	the local datastructures.
	* gdb.base/miscexprs.exp: Handle setting a `-DSTORAGE=...'
	compiler directive.


Index: miscexprs.c
===================================================================
RCS file: /cvs/src/src/gdb/testsuite/gdb.base/miscexprs.c,v
retrieving revision 1.1.1.2
diff -u -p -r1.1.1.2 miscexprs.c
--- miscexprs.c	1999/04/26 18:27:11	1.1.1.2
+++ miscexprs.c	2001/10/31 20:18:04
@@ -7,27 +7,27 @@ marker1 ()
 int
 main ()
 {
-  struct {
+  STORAGE struct {
     char c[100];
   } cbig;
 
-  struct {
+  STORAGE struct {
     int i[800];
   } ibig;
 
-  struct {
+  STORAGE struct {
     long l[900];
   } lbig;
 
-  struct {
+  STORAGE struct {
     float f[200];
   } fbig;
 
-  struct {
+  STORAGE struct {
     double d[300];
   } dbig;
 
-  struct {
+  STORAGE struct {
     short s[400];
   } sbig;
 
Index: miscexprs.exp
===================================================================
RCS file: /cvs/src/src/gdb/testsuite/gdb.base/miscexprs.exp,v
retrieving revision 1.5
diff -u -p -r1.5 miscexprs.exp
--- miscexprs.exp	2001/03/06 08:21:50	1.5
+++ miscexprs.exp	2001/10/31 20:18:04
@@ -30,6 +30,17 @@ if $tracelevel then {
         strace $tracelevel
         }
 
+# By default, the datastructures are allocated on the stack.  For targets
+# with very small stack, that will not work.  In that case, just set
+# storage to `-DSTORAGE=static' which changes the datastructures to be
+# allocated in data segment.
+set storage "-DSTORAGE="
+if [target_info exists gdb,small_stack_section] {
+    set storage "-DSTORAGE=static"
+}
+
+set additional_flags "additional_flags=-w ${storage}"
+
 #
 # test running programs
 #
@@ -40,7 +51,7 @@ set testfile "miscexprs"
 set srcfile ${testfile}.c
 set binfile ${objdir}/${subdir}/${testfile}
 
-if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug additional_flags=-w}] != "" } {
+if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable [list debug ${additional_flags}]] != "" } {
     gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."
 }
 

Re: [RFA]: testsuite/gdb.base/miscexprs.*

[Fernando Nasser]

And it is already done!!!

Yes, it is OK with me.


Regards,
Fernando


Corinna Vinschen wrote:
> 
> On Wed, Oct 31, 2001 at 11:40:08AM -0800, Michael Snyder wrote:
> > Corinna Vinschen wrote:
> > > on my target I have the same problem with the very small (2K) stack
> > > when running miscexprs.exp as I already had with call-ar-st.exp.
> > >
> > > I would like to propose the following patch, which adds the ability
> > > to extend miscexprs.exp for targets, which also suffer from the
> > > small stack.  I added a compiler switch to define the preprocessor
> > > symbol `STORAGE', which by default is set to empty. A target
> > > specific conditional can be used for setting it to "static", to
> > > allow running the tests with the datastructures allocated in the
> > > global data area instead of on the stack.  Obviously, miscexprs.exp
> > > in the below incarantion just contains such a conditional only for
> > > the target I'm just working on...
> >
> > This is a good step, and I'm in favor of accepting it.
> > I'd just like to suggest that an even better approach
> > might be to add a dejagnu variable that could be defined
> > in the baseboard file, rather than put a target ifdef in
> > the testsuite script.
> >
> > Something like this:
> > baseboard file:
> >   set_board_info gdb, small_stack_section, 1
> >   set_board_info gdb, small_data_section, 1    // future extension
> > testsuite file:
> >   if [target_info exists gdb,small_stack_section] {
> >      set storage "-DSTORAGE=static"
> >   }
> 
> Thanks for the suggestion!  I like it so much that I immediately
> changed my patch.  The new patch is below.
> 
> Corinna
> 
> 2001-10-31  Corinna Vinschen  <vinschen@redhat.com>
> 
>         * gdb.base/miscexprs.c (main): Add usage of preprocessor
>         symbol `STORAGE' to allow to choose the storage class of
>         the local datastructures.
>         * gdb.base/miscexprs.exp: Handle setting a `-DSTORAGE=...'
>         compiler directive.
> 
> Index: miscexprs.c
> ===================================================================
> RCS file: /cvs/src/src/gdb/testsuite/gdb.base/miscexprs.c,v
> retrieving revision 1.1.1.2
> diff -u -p -r1.1.1.2 miscexprs.c
> --- miscexprs.c 1999/04/26 18:27:11     1.1.1.2
> +++ miscexprs.c 2001/10/31 20:18:04
> @@ -7,27 +7,27 @@ marker1 ()
>  int
>  main ()
>  {
> -  struct {
> +  STORAGE struct {
>      char c[100];
>    } cbig;
> 
> -  struct {
> +  STORAGE struct {
>      int i[800];
>    } ibig;
> 
> -  struct {
> +  STORAGE struct {
>      long l[900];
>    } lbig;
> 
> -  struct {
> +  STORAGE struct {
>      float f[200];
>    } fbig;
> 
> -  struct {
> +  STORAGE struct {
>      double d[300];
>    } dbig;
> 
> -  struct {
> +  STORAGE struct {
>      short s[400];
>    } sbig;
> 
> Index: miscexprs.exp
> ===================================================================
> RCS file: /cvs/src/src/gdb/testsuite/gdb.base/miscexprs.exp,v
> retrieving revision 1.5
> diff -u -p -r1.5 miscexprs.exp
> --- miscexprs.exp       2001/03/06 08:21:50     1.5
> +++ miscexprs.exp       2001/10/31 20:18:04
> @@ -30,6 +30,17 @@ if $tracelevel then {
>          strace $tracelevel
>          }
> 
> +# By default, the datastructures are allocated on the stack.  For targets
> +# with very small stack, that will not work.  In that case, just set
> +# storage to `-DSTORAGE=static' which changes the datastructures to be
> +# allocated in data segment.
> +set storage "-DSTORAGE="
> +if [target_info exists gdb,small_stack_section] {
> +    set storage "-DSTORAGE=static"
> +}
> +
> +set additional_flags "additional_flags=-w ${storage}"
> +
>  #
>  # test running programs
>  #
> @@ -40,7 +51,7 @@ set testfile "miscexprs"
>  set srcfile ${testfile}.c
>  set binfile ${objdir}/${subdir}/${testfile}
> 
> -if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug additional_flags=-w}] != "" } {
> +if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable [list debug ${additional_flags}]] != "" } {
>      gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."
>  }
> 

-- 
Fernando Nasser
Red Hat Canada Ltd.                     E-Mail:  fnasser@redhat.com
2323 Yonge Street, Suite #300
Toronto, Ontario   M4P 2C9

Re: [RFA]: testsuite/gdb.base/miscexprs.*

[Corinna Vinschen]

On Wed, Oct 31, 2001 at 03:33:09PM -0500, Fernando Nasser wrote:
> And it is already done!!!
> 
> Yes, it is OK with me.
> 
> 
> Regards,
> Fernando

Applied.

Thanks for the quick approval!
Corinna

Re: [RFA]: testsuite/gdb.base/miscexprs.*

[Fernando Nasser]

Michael Snyder wrote:
> 
> Corinna Vinschen wrote:
> >
> > Hi,
> >
> > on my target I have the same problem with the very small (2K) stack
> > when running miscexprs.exp as I already had with call-ar-st.exp.
> >
> > I would like to propose the following patch, which adds the ability
> > to extend miscexprs.exp for targets, which also suffer from the
> > small stack.  I added a compiler switch to define the preprocessor
> > symbol `STORAGE', which by default is set to empty. A target
> > specific conditional can be used for setting it to "static", to
> > allow running the tests with the datastructures allocated in the
> > global data area instead of on the stack.  Obviously, miscexprs.exp
> > in the below incarantion just contains such a conditional only for
> > the target I'm just working on...
> 
> This is a good step, and I'm in favor of accepting it.
> I'd just like to suggest that an even better approach
> might be to add a dejagnu variable that could be defined
> in the baseboard file, rather than put a target ifdef in
> the testsuite script.
> 
> Something like this:
> baseboard file:
>   set_board_info gdb, small_stack_section, 1
>   set_board_info gdb, small_data_section, 1    // future extension
> testsuite file:
>   if [target_info exists gdb,small_stack_section] {
>      set storage "-DSTORAGE=static"
>   }
> 

I was simultaneously writting the same thing.

Thanks Michael, small_stack_section is better than smallstack.



-- 
Fernando Nasser
Red Hat Canada Ltd.                     E-Mail:  fnasser@redhat.com
2323 Yonge Street, Suite #300
Toronto, Ontario   M4P 2C9

Re: [RFA]: testsuite/gdb.base/miscexprs.*

[Fernando Nasser]

Corinna Vinschen wrote:
> 
> Hi,
> 
> on my target I have the same problem with the very small (2K) stack
> when running miscexprs.exp as I already had with call-ar-st.exp.
> 
> I would like to propose the following patch, which adds the ability
> to extend miscexprs.exp for targets, which also suffer from the
> small stack.  I added a compiler switch to define the preprocessor
> symbol `STORAGE', which by default is set to empty. A target
> specific conditional can be used for setting it to "static", to
> allow running the tests with the datastructures allocated in the
> global data area instead of on the stack. 

Hmm, I would have just set a, lets say, 'flag' variable and added
it to the gdb_compile statement "additional_flags= $flag -w"
(see long_long.exp).  But don't bother, some other places even 
forgot the -w.


> Obviously, miscexprs.exp
> in the below incarantion just contains such a conditional only for
> the target I'm just working on...
> 

Well, this one gets me a little bit more concerned.  It is very possible
that other targets have the same problem as yours.  And, most important
of all, this is more of a board limitation than an architecture (which
is what the target triple defines) limitation.  Or isn't it possible
that someone uses this chip to create a board with a larger stack
memory?


In this cases, we create an entry in the board info and set it (in the
boards file) with

set_board_info gdb,smallstack 1;

And test it (in the tests file) with 

if [target_info exists gdb,smallstack] {




> Corinna
> 
> 2001-10-31  Corinna Vinschen  <vinschen@redhat.com>
> 
>         * gdb.base/miscexprs.c (main): Add usage of preprocessor
>         symbol `STORAGE' to allow to choose the storage class of
>         the local datastructures.
>         * gdb.base/miscexprs.exp: Handle setting a `-DSTORAGE=...'
>         compiler directive.
> 
> Index: miscexprs.c
> ===================================================================
> RCS file: /cvs/src/src/gdb/testsuite/gdb.base/miscexprs.c,v
> retrieving revision 1.1.1.2
> diff -u -p -r1.1.1.2 miscexprs.c
> --- miscexprs.c 1999/04/26 18:27:11     1.1.1.2
> +++ miscexprs.c 2001/10/31 16:43:01
> @@ -7,27 +7,27 @@ marker1 ()
>  int
>  main ()
>  {
> -  struct {
> +  STORAGE struct {
>      char c[100];
>    } cbig;
> 
> -  struct {
> +  STORAGE struct {
>      int i[800];
>    } ibig;
> 
> -  struct {
> +  STORAGE struct {
>      long l[900];
>    } lbig;
> 
> -  struct {
> +  STORAGE struct {
>      float f[200];
>    } fbig;
> 
> -  struct {
> +  STORAGE struct {
>      double d[300];
>    } dbig;
> 
> -  struct {
> +  STORAGE struct {
>      short s[400];
>    } sbig;
> 
> Index: miscexprs.exp
> ===================================================================
> RCS file: /cvs/src/src/gdb/testsuite/gdb.base/miscexprs.exp,v
> retrieving revision 1.5
> diff -u -p -r1.5 miscexprs.exp
> --- miscexprs.exp       2001/03/06 08:21:50     1.5
> +++ miscexprs.exp       2001/10/31 16:43:01
> @@ -30,6 +30,17 @@ if $tracelevel then {
>          strace $tracelevel
>          }
> 
> +# By default, the datastructures are allocated on the stack.  For targets
> +# with very small stack, that will not work.  In that case, just set
> +# storage to `-DSTORAGE=static' which changes the datastructures to be
> +# allocated in data segment.
> +set storage "-DSTORAGE="
> +if [istarget "stormy16-*-*"] then {
> +    set storage "-DSTORAGE=static"
> +}
> +
> +set additional_flags "additional_flags=-w ${storage}"
> +
>  #
>  # test running programs
>  #
> @@ -40,7 +51,7 @@ set testfile "miscexprs"
>  set srcfile ${testfile}.c
>  set binfile ${objdir}/${subdir}/${testfile}
> 
> -if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug additional_flags=-w}] != "" } {
> +if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable [list debug ${additional_flags}]] != "" } {
>      gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."
>  }
> 

-- 
Fernando Nasser
Red Hat Canada Ltd.                     E-Mail:  fnasser@redhat.com
2323 Yonge Street, Suite #300
Toronto, Ontario   M4P 2C9