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Re: print_npx_status_word
On 04/16/2011 10:24 AM, Mark Kettenis wrote:
Date: Sat, 16 Apr 2011 08:08:48 +0200
From: "Baars, M.J."<mjbaars1977.gdb@gmail.com>
Hi Tom,
I believe this is the format you requested?
No! This is a .tar.gz. Proper diffs don't come as a .tar.gz.
Oops... did I remove one of your entries in the ChangeLog? :)
--------------020309050206070002040202
Content-Type: application/x-gzip;
name="patches-gdb-7.2.tar.gz"
Content-Transfer-Encoding: base64
Content-Disposition: attachment;
filename="patches-gdb-7.2.tar.gz"
--- ./gdb-7.2/gdb/ChangeLog 2010-09-03 01:37:25.000000000 +0200
+++ ./gdb-7.2.2/gdb/ChangeLog 2011-04-14 16:14:53.623948000 +0200
@@ -1,3 +1,7 @@
+2011-04-14 Ir. M.J. Baars <mjbaars1977.gdb@gmail.com>
+
+ * i387-tdep.c (print_npx_status_word) - new function
+
2010-09-02 Joel Brobecker <brobecker@adacore.com>
* NEWS: Replace "Changes since GDB 7.1" by "Changes in GDB 7.2".
--- ./gdb-7.2/gdb/ChangeLog-1999 2001-01-12 04:44:31.000000000 +0100
+++ ./gdb-7.2.2/gdb/ChangeLog-1999 2011-04-14 16:11:31.503948001 +0200
@@ -581,9 +581,9 @@ Wed Dec 8 15:29:48 1999 Andrew Cagney
Patch from Mark Kettenis <kettenis@gnu.org>:
* config/i386/tm-i386.h (FLOAT_INFO): New define.
- * i387-tdep.c (print_i387_value, print_i387_ext,
- print_i387_status_word, print_i387_control_word, i387_float_info):
- New functions, used to implement generic `info float' command.
+
+ * i387-tdep.c (print_i387_value, print_i387_ext,print_i387_control_word, i387_float_info):
+ New functions, used to implement generic `info float' command.
1999-12-06 Christopher Faylor <cgf@cygnus.com>
--- ./gdb-7.2/gdb/ChangeLog-2001 2002-01-06 05:37:53.000000000 +0100
+++ ./gdb-7.2.2/gdb/ChangeLog-2001 2011-04-14 15:55:22.631948002 +0200
@@ -8076,11 +8076,6 @@ Wed Apr 4 21:48:42 2001 Christopher Fa
* MAINTAINERS: Add myself to write after approval list.
-2001-03-09 Mark Kettenis <kettenis@gnu.org>
-
- * i387-tdep.c (print_i387_status_word): Fix printing of Stack
- fault flag. It is bit 6 of the x87 FPU status word, not bit 7.
-
2001-03-08 Andrew Cagney <ac131313@redhat.com>
* configure.host (m88*-harris-cxux*): Mark as obsolete.
--- ./gdb-7.2/gdb/ChangeLog-2002 2004-04-24 00:15:17.000000000 +0200
+++ ./gdb-7.2.2/gdb/ChangeLog-2002 2011-04-14 16:13:29.187948001 +0200
@@ -5396,12 +5396,13 @@ Fri Sep 13 07:42:09 2002 Andrew Cagney
* config/i386/tm-i386.h: Don't include "regcache.h".
* i387-tdep.h (i387_print_float_info): New prototype.
- * i387-tdep.c (print_i387_value, print_i387_ext,
- print_i387_status_word, print_i387_control_word): Add `struct
- ui_file *' argument and use it for output.
- (i387_print_float_info): Renamed from i387_float_info. Add
- `struct gdbarch *' and `struct ui_file *' arguments and use the
- latter for output.
+ * i387-tdep.c (print_i387_value, print_i387_ext, print_i387_control_word):
+ Add `struct ui_file *' argument and use it for output.
+
+ * i387-tdep.c (i387_print_float_info):
+ Renamed from i387_float_info. Add `struct gdbarch *' and `struct ui_file *' arguments
+ and use the latter for output.
+
* i386-tdep.c: Include "i387-tdep.h".
(i386_gdbarch_init): Set print_float_info.
* config/i386/tm-i386.h (i387_float_info): Remove prototype.
--- ./gdb-7.2/gdb/ChangeLog-2004 2006-10-24 22:23:56.000000000 +0200
+++ ./gdb-7.2.2/gdb/ChangeLog-2004 2011-04-14 16:13:52.067948001 +0200
@@ -3468,9 +3468,10 @@
* ui-out.c (ui_out_field_core_addr): Ditto.
* breakpoint.c (breakpoint_adjustment_warning): Ditto.
* exec.c (print_section_info): Ditto.
- * i387-tdep.c (print_i387_status_word): Ditto.
- (print_i387_control_word): Ditto.
- (i387_print_float_info): Ditto.
+
+ * i387-tdep.c (print_i387_control_word): Ditto.
+ * i387-tdep.c (i387_print_float_info): Ditto.
+
* maint.c (maint_print_section_info): Ditto.
* solib.c (info_sharedlibrary_command): Ditto.
* somsolib.c (som_sharedlibrary_info_command): Ditto.
--- ./gdb-7.2/gdb/i387-tdep.c 2010-05-05 21:30:36.000000000 +0200
+++ ./gdb-7.2.2/gdb/i387-tdep.c 2011-04-14 16:23:54.647948001 +0200
@@ -36,6 +36,52 @@
#include "i387-tdep.h"
#include "i386-xstate.h"
+struct
+{
+ char *tag;
+ char *description;
+}
+
+static const npx_exception_flags[6] =
+
+{
+ {"IE", "invalid operation"},
+ {"DE", "denormalized operand"},
+ {"ZE", "zero divide"},
+ {"OE", "overflow"},
+ {"UE", "underflow"},
+ {"PE", "precision"}
+};
+
+// print the numeric coprocessor extension (npx) status word
+void print_npx_status_word(uint16_t npx_status_word, struct ui_file *file)
+{
+ fprintf_filtered(file, "status word : 0x%04X\n", npx_status_word);
+
+ fprintf_filtered(file, " exception flags : ");
+
+ fprintf_filtered(file, "%s ", ((npx_status_word >> 0x0005) & 0x0001) ? npx_exception_flags[5].tag : " "); // precision
+ fprintf_filtered(file, "%s ", ((npx_status_word >> 0x0004) & 0x0001) ? npx_exception_flags[4].tag : " "); // underflow
+ fprintf_filtered(file, "%s ", ((npx_status_word >> 0x0003) & 0x0001) ? npx_exception_flags[3].tag : " "); // overflow
+ fprintf_filtered(file, "%s ", ((npx_status_word >> 0x0002) & 0x0001) ? npx_exception_flags[2].tag : " "); // zero divide
+ fprintf_filtered(file, "%s ", ((npx_status_word >> 0x0001) & 0x0001) ? npx_exception_flags[1].tag : " "); // denormalized operand
+ fprintf_filtered(file, "%s ", ((npx_status_word >> 0x0000) & 0x0001) ? npx_exception_flags[0].tag : " "); // invalid operation
+ fprintf_filtered(file, "\n");
+
+ fprintf_filtered(file, " stack fault : %u\n", ((npx_status_word >> 0x0006) & 0x0001));
+ fprintf_filtered(file, " error summary status : %u\n", ((npx_status_word >> 0x0007) & 0x0001));
+ fprintf_filtered(file, " busy : %u\n", ((npx_status_word >> 0x000F) & 0x0001));
+ fprintf_filtered(file, " top of stack pointer : %u\n", ((npx_status_word >> 0x000B) & 0x0007));
+
+ fprintf_filtered(file, " condition code : ");
+
+ fprintf_filtered(file, "%s ", ((npx_status_word >> 0x000E) & 0x0001) ? "C3" : " ");
+ fprintf_filtered(file, "%s ", ((npx_status_word >> 0x000A) & 0x0001) ? "C2" : " ");
+ fprintf_filtered(file, "%s ", ((npx_status_word >> 0x0009) & 0x0001) ? "C1" : " ");
+ fprintf_filtered(file, "%s ", ((npx_status_word >> 0x0008) & 0x0001) ? "C0" : " ");
+ fprintf_filtered(file, "\n");
+}
+
/* Print the floating point number specified by RAW. */
static void
@@ -114,36 +160,6 @@ print_i387_ext (struct gdbarch *gdbarch,
fputs_filtered (" Unsupported", file);
}
-/* Print the status word STATUS. */
-
-static void
-print_i387_status_word (unsigned int status, struct ui_file *file)
-{
- fprintf_filtered (file, "Status Word: %s",
- hex_string_custom (status, 4));
- fputs_filtered (" ", file);
- fprintf_filtered (file, " %s", (status & 0x0001) ? "IE" : " ");
- fprintf_filtered (file, " %s", (status & 0x0002) ? "DE" : " ");
- fprintf_filtered (file, " %s", (status & 0x0004) ? "ZE" : " ");
- fprintf_filtered (file, " %s", (status & 0x0008) ? "OE" : " ");
- fprintf_filtered (file, " %s", (status & 0x0010) ? "UE" : " ");
- fprintf_filtered (file, " %s", (status & 0x0020) ? "PE" : " ");
- fputs_filtered (" ", file);
- fprintf_filtered (file, " %s", (status & 0x0080) ? "ES" : " ");
- fputs_filtered (" ", file);
- fprintf_filtered (file, " %s", (status & 0x0040) ? "SF" : " ");
- fputs_filtered (" ", file);
- fprintf_filtered (file, " %s", (status & 0x0100) ? "C0" : " ");
- fprintf_filtered (file, " %s", (status & 0x0200) ? "C1" : " ");
- fprintf_filtered (file, " %s", (status & 0x0400) ? "C2" : " ");
- fprintf_filtered (file, " %s", (status & 0x4000) ? "C3" : " ");
-
- fputs_filtered ("\n", file);
-
- fprintf_filtered (file,
- " TOP: %d\n", ((status >> 11) & 7));
-}
-
/* Print the control word CONTROL. */
static void
@@ -268,7 +284,9 @@ i387_print_float_info (struct gdbarch *g
fputs_filtered ("\n", file);
- print_i387_status_word (fstat, file);
+ print_npx_status_word(fstat, file);
+ fprintf_filtered(file, "\n");
+
print_i387_control_word (fctrl, file);
fprintf_filtered (file, "Tag Word: %s\n",
hex_string_custom (ftag, 4));