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List: gdb-patches
Subject: [PATCH 1/2] New OPTIMIZED_OUT_ERROR error code.
From: palves () redhat ! com (Pedro Alves)
Date: 2013-11-29 20:39:00
Message-ID: 1385756149-534-2-git-send-email-palves () redhat ! com
[Download RAW message or body]
In order to catch <optimized out> errors like we catch <unavailable>
errors, this adds a new OPTIMIZED_OUT_ERROR error code, and throws it
in various places.
gdb/ChangeLog
2013-11-29 Andrew Burgess <aburgess@broadcom.com>
Pedro Alves <palves@redhat.com>
* exceptions.h (errors): Add OPTIMIZED_OUT_ERROR.
* dwarf2loc.c (write_pieced_value): Throw OPTIMIZED_OUT_ERROR.
* frame.c (frame_unwind_register): Throw OPTIMIZED_OUT_ERROR.
* spu-tdep.c (spu_software_single_step): Throw
OPTIMIZED_OUT_ERROR.
* valops.c (value_assign): Throw OPTIMIZED_OUT_ERROR.
---
gdb/dwarf2loc.c | 7 ++++---
gdb/exceptions.h | 4 ++++
gdb/frame.c | 3 ++-
gdb/spu-tdep.c | 5 +++--
gdb/valops.c | 3 ++-
5 files changed, 15 insertions(+), 7 deletions(-)
diff --git a/gdb/dwarf2loc.c b/gdb/dwarf2loc.c
index 2d15546..2b1f323 100644
--- a/gdb/dwarf2loc.c
+++ b/gdb/dwarf2loc.c
@@ -1893,9 +1893,10 @@ write_pieced_value (struct value *to, struct value *from)
&optim, &unavail))
{
if (optim)
- error (_("Can't do read-modify-write to "
- "update bitfield; containing word has been "
- "optimized out"));
+ throw_error (OPTIMIZED_OUT_ERROR,
+ _("Can't do read-modify-write to "
+ "update bitfield; containing word "
+ "has been optimized out"));
if (unavail)
throw_error (NOT_AVAILABLE_ERROR,
_("Can't do read-modify-write to update "
diff --git a/gdb/exceptions.h b/gdb/exceptions.h
index 129d29a..237764d 100644
--- a/gdb/exceptions.h
+++ b/gdb/exceptions.h
@@ -86,6 +86,10 @@ enum errors {
traceframe. */
NOT_AVAILABLE_ERROR,
+ /* Value was optimized out. Note: if the value was a register, this
+ means the register was not saved in the frame. */
+ OPTIMIZED_OUT_ERROR,
+
/* DW_OP_GNU_entry_value resolving failed. */
NO_ENTRY_VALUE_ERROR,
diff --git a/gdb/frame.c b/gdb/frame.c
index db94d98..69a8059 100644
--- a/gdb/frame.c
+++ b/gdb/frame.c
@@ -1007,7 +1007,8 @@ frame_unwind_register (struct frame_info *frame, int regnum, gdb_byte *buf)
&lval, &addr, &realnum, buf);
if (optimized)
- error (_("Register %d was not saved"), regnum);
+ throw_error (OPTIMIZED_OUT_ERROR,
+ _("Register %d was not saved"), regnum);
if (unavailable)
throw_error (NOT_AVAILABLE_ERROR,
_("Register %d is not available"), regnum);
diff --git a/gdb/spu-tdep.c b/gdb/spu-tdep.c
index fd54b1e..fdf435e 100644
--- a/gdb/spu-tdep.c
+++ b/gdb/spu-tdep.c
@@ -1614,8 +1614,9 @@ spu_software_single_step (struct frame_info *frame)
else
{
if (optim)
- error (_("Could not determine address of "
- "single-step breakpoint."));
+ throw_error (OPTIMIZED_OUT_ERROR,
+ _("Could not determine address of "
+ "single-step breakpoint."));
if (unavail)
throw_error (NOT_AVAILABLE_ERROR,
_("Could not determine address of "
diff --git a/gdb/valops.c b/gdb/valops.c
index 8e7b16f..d43c758 100644
--- a/gdb/valops.c
+++ b/gdb/valops.c
@@ -1188,7 +1188,8 @@ value_assign (struct value *toval, struct value *fromval)
&optim, &unavail))
{
if (optim)
- error (_("value has been optimized out"));
+ throw_error (OPTIMIZED_OUT_ERROR,
+ _("value has been optimized out"));
if (unavail)
throw_error (NOT_AVAILABLE_ERROR,
_("value is not available"));
--
1.7.11.7
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