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* breakpoint.c (deprecated_read_memory_nobpt): Update to use
	shadow_len.
	(insert_bp_location, reattach_breakpoints, remove_breakpoint)
	(delete_breakpoint): Update calls to changed methods.
	(deprecated_insert_raw_breakpoint, deprecated_remove_raw_breakpoint)
	(single_step_breakpoints, insert_single_step_breakpoint)
	(remove_single_step_breakpoints): New.
	* breakpoint.h (struct bp_target_info): New.
	(struct bp_location): Replace shadow_contents with
	target_info and overlay_target_info.
	(deprecated_insert_raw_breakpoint, deprecated_remove_raw_breakpoint)
	(insert_single_step_breakpoint, remove_single_step_breakpoints): New
	prototypes.
	* gdbarch.sh: Forward declare struct bp_target_info in gdbarch.h.
	(memory_insert_breakpoint, memory_remove_breakpoint): Update second
	argument.
	* mem-break.c (default_memory_insert_breakpoint): Update.  Set
	placed_address, placed_size, and shadow_len.
	(default_memory_remove_breakpoint): Update.  Don't use
	BREAKPOINT_FROM_PC.
	(memory_insert_breakpoint, memory_remove_breakpoint): Update.
	* target.c (update_current_target): Update prototypes for changed
	functions.
	(debug_to_insert_breakpoint, debug_to_remove_breakpoint)
	(debug_to_insert_hw_breakpoint, debug_to_remove_hw_breakpoint):
	Update.
	* target.h: Forward declare struct bp_target_info.
	(struct target_ops): Use a bp_target_info argument for
	to_insert_breakpoint, to_remove_breakpoint,
	to_insert_hw_breakpoint, and to_remove_hw_breakpoint.
	(target_insert_breakpoint, target_remove_breakpoint)
	(target_insert_hw_breakpoint, target_remove_hw_breakpoint)
	(memory_insert_breakpoint, memory_remove_breakpoint)
	(default_memory_insert_breakpoint, default_memory_remove_breakpoint):
	Update.
	* config/i386/nm-i386.h: Forward declare struct bp_target_info.
	(i386_insert_hw_breakpoint, i386_remove_hw_breakpoint): Update.
	(target_insert_hw_breakpoint, target_remove_hw_breakpoint): Likewise.

	* gdbarch.c, gdbarch.h: Regenerated.

	* alpha-tdep.c (alpha_software_single_step): Use
	insert_single_step_breakpoint and remove_single_step_breakpoints.
	Remove unused statics.
	* arm-tdep.c (arm_software_single_step): Likewise.  Add a note.
	* cris-tdep.c (cris_software_single_step): Likewise.
	* mips-tdep.c (mips_software_single_step): Likewise.
	* rs6000-tdep.c (rs6000_software_single_step): Likewise.
	* sparc-tdep.c (sparc_software_single_step): Likewise.
	* wince.c (struct thread_info_struct): Remove step_prev.
	(undoSStep): Use remove_single_step_breakpoints.
	(wince_software_single_step): Use insert_single_step_breakpoint.

	* corelow.c (ignore): Remove unneeded prototype.  Update arguments.
	* exec.c (ignore): Likewise.
	* sol-thread.c (ignore): Likewise.

	* procfs.c (dbx_link_shadow_contents): Delete.
	(dbx_link_bpt): New.
	(procfs_mourn_inferior): Remove it if necessary.
	(remove_dbx_link_breakpoint): Use it.
	(insert_dbx_link_bpt_in_file): Set it.
	(procfs_init_inferior): Don't update dbx_link_bpt_addr.
	* rs6000-nat.c (exec_one_dummy_insn): Use
	deprecated_insert_raw_breakpoint and
	deprecated_remove_raw_breakpoint.
	* solib-irix.c (shadow_contents, breakpoint_addr): Delete.
	(base_breakpoint): New.
	(disable_break): Use it.
	(enable_break): Set it.

	* i386-nat.c (i386_insert_hw_breakpoint, i386_remove_hw_breakpoint):
	Update.
	* ia64-tdep.c (ia64_memory_insert_breakpoint)
	(ia64_memory_remove_breakpoint): Likewise.
	* m32r-tdep.c (m32r_memory_insert_breakpoint)
	(m32r_memory_remove_breakpoint): Likewise.
	* monitor.c (monitor_insert_breakpoint, monitor_remove_breakpoint):
	Likewise.  Remove unnecessary prototypes.  Use placed_address
	and placed_size.  Removed useless read from memory.
	* nto-procfs.c (procfs_insert_breakpoint)
	(procfs_remove_breakpoint, procfs_insert_hw_breakpoint)
	(procfs_remove_hw_breakpoint): Update.
	* ocd.c (ocd_insert_breakpoint, ocd_remove_breakpoint): Likewise.
	* ocd.h (ocd_insert_breakpoint, ocd_remove_breakpoint): Likewise.
	* ppc-linux-tdep.c (ppc_linux_memory_remove_breakpoint): Likewise.
	* ppc-tdep.h (ppc_linux_memory_remove_breakpoint): Likewise.
	* remote-e7000.c (e7000_insert_breakpoint)
	(e7000_remove_breakpoint): Likewise.
	* remote-m32r-sdi.c (m32r_insert_breakpoint)
	(m32r_remove_breakpoint): Likewise.
	* remote-mips.c (mips_insert_breakpoint)
	(mips_remove_breakpoint): Likewise.
	* remote-rdp.c (remote_rdp_insert_breakpoint)
	(remote_rdp_remove_breakpoint): Likewise.
	(rdp_step): Use deprecated_insert_raw_breakpoint and
	deprecated_remove_raw_breakpoint.
	* remote-sds.c (sds_insert_breakpoint, sds_remove_breakpoint):
	Update.
	* remote-sim.c (gdbsim_insert_breakpoint, gdbsim_remove_breakpoint):
	Delete.
	(init_gdbsim_ops): Use memory_insert_breakpoint and
	memory_remove_breakpoint.
	* remote-st.c (st2000_insert_breakpoint)
	(st2000_remove_breakpoint): Update.  Remove unused
	BREAKPOINT_FROM_PC.
	* remote.c (remote_insert_breakpoint, remote_remove_breakpoint):
	Update.  Use placed_address and placed_size.
	(remote_insert_hw_breakpoint, remote_remove_hw_breakpoint): Likewise.
gdb/doc/
	* gdbint.texinfo (x86 Watchpoints, Target Conditionals): Update insert
	and remove breakpoint prototypes.
	(Watchpoints): Move description of target_insert_hw_breakpoint and
	target_remove_hw_breakpoint ...
	(Breakpoints): ... to here.  Document target_insert_breakpoint and
	target_remove_breakpoint.
This commit is contained in:
Daniel Jacobowitz 2006-04-18 19:20:08 +00:00
parent bb8f592040
commit 8181d85fdc
42 changed files with 619 additions and 410 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

112
gdb/ChangeLog
View File

@ -1,3 +1,115 @@
2006-04-18 Daniel Jacobowitz <dan@codesourcery.com>
* breakpoint.c (deprecated_read_memory_nobpt): Update to use
shadow_len.
(insert_bp_location, reattach_breakpoints, remove_breakpoint)
(delete_breakpoint): Update calls to changed methods.
(deprecated_insert_raw_breakpoint, deprecated_remove_raw_breakpoint)
(single_step_breakpoints, insert_single_step_breakpoint)
(remove_single_step_breakpoints): New.
* breakpoint.h (struct bp_target_info): New.
(struct bp_location): Replace shadow_contents with
target_info and overlay_target_info.
(deprecated_insert_raw_breakpoint, deprecated_remove_raw_breakpoint)
(insert_single_step_breakpoint, remove_single_step_breakpoints): New
prototypes.
* gdbarch.sh: Forward declare struct bp_target_info in gdbarch.h.
(memory_insert_breakpoint, memory_remove_breakpoint): Update second
argument.
* mem-break.c (default_memory_insert_breakpoint): Update. Set
placed_address, placed_size, and shadow_len.
(default_memory_remove_breakpoint): Update. Don't use
BREAKPOINT_FROM_PC.
(memory_insert_breakpoint, memory_remove_breakpoint): Update.
* target.c (update_current_target): Update prototypes for changed
functions.
(debug_to_insert_breakpoint, debug_to_remove_breakpoint)
(debug_to_insert_hw_breakpoint, debug_to_remove_hw_breakpoint):
Update.
* target.h: Forward declare struct bp_target_info.
(struct target_ops): Use a bp_target_info argument for
to_insert_breakpoint, to_remove_breakpoint,
to_insert_hw_breakpoint, and to_remove_hw_breakpoint.
(target_insert_breakpoint, target_remove_breakpoint)
(target_insert_hw_breakpoint, target_remove_hw_breakpoint)
(memory_insert_breakpoint, memory_remove_breakpoint)
(default_memory_insert_breakpoint, default_memory_remove_breakpoint):
Update.
* config/i386/nm-i386.h: Forward declare struct bp_target_info.
(i386_insert_hw_breakpoint, i386_remove_hw_breakpoint): Update.
(target_insert_hw_breakpoint, target_remove_hw_breakpoint): Likewise.
* gdbarch.c, gdbarch.h: Regenerated.
* alpha-tdep.c (alpha_software_single_step): Use
insert_single_step_breakpoint and remove_single_step_breakpoints.
Remove unused statics.
* arm-tdep.c (arm_software_single_step): Likewise. Add a note.
* cris-tdep.c (cris_software_single_step): Likewise.
* mips-tdep.c (mips_software_single_step): Likewise.
* rs6000-tdep.c (rs6000_software_single_step): Likewise.
* sparc-tdep.c (sparc_software_single_step): Likewise.
* wince.c (struct thread_info_struct): Remove step_prev.
(undoSStep): Use remove_single_step_breakpoints.
(wince_software_single_step): Use insert_single_step_breakpoint.
* corelow.c (ignore): Remove unneeded prototype. Update arguments.
* exec.c (ignore): Likewise.
* sol-thread.c (ignore): Likewise.
* procfs.c (dbx_link_shadow_contents): Delete.
(dbx_link_bpt): New.
(procfs_mourn_inferior): Remove it if necessary.
(remove_dbx_link_breakpoint): Use it.
(insert_dbx_link_bpt_in_file): Set it.
(procfs_init_inferior): Don't update dbx_link_bpt_addr.
* rs6000-nat.c (exec_one_dummy_insn): Use
deprecated_insert_raw_breakpoint and
deprecated_remove_raw_breakpoint.
* solib-irix.c (shadow_contents, breakpoint_addr): Delete.
(base_breakpoint): New.
(disable_break): Use it.
(enable_break): Set it.
* i386-nat.c (i386_insert_hw_breakpoint, i386_remove_hw_breakpoint):
Update.
* ia64-tdep.c (ia64_memory_insert_breakpoint)
(ia64_memory_remove_breakpoint): Likewise.
* m32r-tdep.c (m32r_memory_insert_breakpoint)
(m32r_memory_remove_breakpoint): Likewise.
* monitor.c (monitor_insert_breakpoint, monitor_remove_breakpoint):
Likewise. Remove unnecessary prototypes. Use placed_address
and placed_size. Removed useless read from memory.
* nto-procfs.c (procfs_insert_breakpoint)
(procfs_remove_breakpoint, procfs_insert_hw_breakpoint)
(procfs_remove_hw_breakpoint): Update.
* ocd.c (ocd_insert_breakpoint, ocd_remove_breakpoint): Likewise.
* ocd.h (ocd_insert_breakpoint, ocd_remove_breakpoint): Likewise.
* ppc-linux-tdep.c (ppc_linux_memory_remove_breakpoint): Likewise.
* ppc-tdep.h (ppc_linux_memory_remove_breakpoint): Likewise.
* remote-e7000.c (e7000_insert_breakpoint)
(e7000_remove_breakpoint): Likewise.
* remote-m32r-sdi.c (m32r_insert_breakpoint)
(m32r_remove_breakpoint): Likewise.
* remote-mips.c (mips_insert_breakpoint)
(mips_remove_breakpoint): Likewise.
* remote-rdp.c (remote_rdp_insert_breakpoint)
(remote_rdp_remove_breakpoint): Likewise.
(rdp_step): Use deprecated_insert_raw_breakpoint and
deprecated_remove_raw_breakpoint.
* remote-sds.c (sds_insert_breakpoint, sds_remove_breakpoint):
Update.
* remote-sim.c (gdbsim_insert_breakpoint, gdbsim_remove_breakpoint):
Delete.
(init_gdbsim_ops): Use memory_insert_breakpoint and
memory_remove_breakpoint.
* remote-st.c (st2000_insert_breakpoint)
(st2000_remove_breakpoint): Update. Remove unused
BREAKPOINT_FROM_PC.
* remote.c (remote_insert_breakpoint, remote_remove_breakpoint):
Update. Use placed_address and placed_size.
(remote_insert_hw_breakpoint, remote_remove_hw_breakpoint): Likewise.
2006-04-12 Daniel Jacobowitz <dan@codesourcery.com>
* remote.c (extended_remote_restart): Pass the correct length

6
gdb/alpha-tdep.c
View File

@ -1493,8 +1493,6 @@ void
alpha_software_single_step (enum target_signal sig, int insert_breakpoints_p)
{
static CORE_ADDR next_pc;
typedef char binsn_quantum[BREAKPOINT_MAX];
static binsn_quantum break_mem;
CORE_ADDR pc;
if (insert_breakpoints_p)
@ -1502,11 +1500,11 @@ alpha_software_single_step (enum target_signal sig, int insert_breakpoints_p)
pc = read_pc ();
next_pc = alpha_next_pc (pc);
target_insert_breakpoint (next_pc, break_mem);
insert_single_step_breakpoint (next_pc);
}
else
{
target_remove_breakpoint (next_pc, break_mem);
remove_single_step_breakpoints ();
write_pc (next_pc);
}
}

12
gdb/arm-tdep.c
View File

@ -1849,16 +1849,18 @@ arm_get_next_pc (CORE_ADDR pc)
static void
arm_software_single_step (enum target_signal sig, int insert_bpt)
{
static int next_pc; /* State between setting and unsetting. */
static char break_mem[BREAKPOINT_MAX]; /* Temporary storage for mem@bpt */
/* NOTE: This may insert the wrong breakpoint instruction when
single-stepping over a mode-changing instruction, if the
CPSR heuristics are used. */
if (insert_bpt)
{
next_pc = arm_get_next_pc (read_register (ARM_PC_REGNUM));
target_insert_breakpoint (next_pc, break_mem);
CORE_ADDR next_pc = arm_get_next_pc (read_register (ARM_PC_REGNUM));
insert_single_step_breakpoint (next_pc);
}
else
target_remove_breakpoint (next_pc, break_mem);
remove_single_step_breakpoints ();
}
#include "bfd-in2.h"

160
gdb/breakpoint.c
View File

@ -663,16 +663,10 @@ deprecated_read_memory_nobpt (CORE_ADDR memaddr, gdb_byte *myaddr,
continue;
/* Addresses and length of the part of the breakpoint that
we need to copy. */
/* XXXX The m68k, sh and h8300 have different local and remote
breakpoint values. BREAKPOINT_FROM_PC still manages to
correctly determine the breakpoints memory address and size
for these targets. */
bp_addr = b->address;
bp_size = 0;
if (BREAKPOINT_FROM_PC (&bp_addr, &bp_size) == NULL)
continue;
bp_addr = b->target_info.placed_address;
bp_size = b->target_info.shadow_len;
if (bp_size == 0)
/* bp isn't valid */
/* bp isn't valid, or doesn't shadow memory. */
continue;
if (bp_addr + bp_size <= memaddr)
/* The breakpoint is entirely before the chunk of memory we
@ -703,7 +697,7 @@ deprecated_read_memory_nobpt (CORE_ADDR memaddr, gdb_byte *myaddr,
}
memcpy (myaddr + bp_addr - memaddr,
b->shadow_contents + bptoffset, bp_size);
b->target_info.shadow_contents + bptoffset, bp_size);
if (bp_addr > memaddr)
{
@ -793,6 +787,10 @@ insert_bp_location (struct bp_location *bpt,
if (bpt->inserted || bpt->duplicate)
return 0;
/* Initialize the target-specific information. */
memset (&bpt->target_info, 0, sizeof (bpt->target_info));
bpt->target_info.placed_address = bpt->address;
if (bpt->loc_type == bp_loc_software_breakpoint
|| bpt->loc_type == bp_loc_hardware_breakpoint)
{
@ -804,11 +802,9 @@ insert_bp_location (struct bp_location *bpt,
/* No overlay handling: just set the breakpoint. */
if (bpt->loc_type == bp_loc_hardware_breakpoint)
val = target_insert_hw_breakpoint (bpt->address,
bpt->shadow_contents);
val = target_insert_hw_breakpoint (&bpt->target_info);
else
val = target_insert_breakpoint (bpt->address,
bpt->shadow_contents);
val = target_insert_breakpoint (&bpt->target_info);
}
else
{
@ -827,7 +823,9 @@ insert_bp_location (struct bp_location *bpt,
CORE_ADDR addr = overlay_unmapped_address (bpt->address,
bpt->section);
/* Set a software (trap) breakpoint at the LMA. */
val = target_insert_breakpoint (addr, bpt->shadow_contents);
bpt->overlay_target_info = bpt->target_info;
bpt->overlay_target_info.placed_address = addr;
val = target_insert_breakpoint (&bpt->overlay_target_info);
if (val != 0)
fprintf_unfiltered (tmp_error_stream,
"Overlay breakpoint %d failed: in ROM?",
@ -839,11 +837,9 @@ insert_bp_location (struct bp_location *bpt,
{
/* Yes. This overlay section is mapped into memory. */
if (bpt->loc_type == bp_loc_hardware_breakpoint)
val = target_insert_hw_breakpoint (bpt->address,
bpt->shadow_contents);
val = target_insert_hw_breakpoint (&bpt->target_info);
else
val = target_insert_breakpoint (bpt->address,
bpt->shadow_contents);
val = target_insert_breakpoint (&bpt->target_info);
}
else
{
@ -1045,7 +1041,7 @@ in which its expression is valid.\n"),
/* If we get here, we must have a callback mechanism for exception
events -- with g++ style embedded label support, we insert
ordinary breakpoints and not catchpoints. */
val = target_insert_breakpoint (bpt->address, bpt->shadow_contents);
val = target_insert_breakpoint (&bpt->target_info);
if (val)
{
/* Couldn't set breakpoint for some reason */
@ -1240,9 +1236,9 @@ reattach_breakpoints (int pid)
{
remove_breakpoint (b, mark_inserted);
if (b->loc_type == bp_loc_hardware_breakpoint)
val = target_insert_hw_breakpoint (b->address, b->shadow_contents);
val = target_insert_hw_breakpoint (&b->target_info);
else
val = target_insert_breakpoint (b->address, b->shadow_contents);
val = target_insert_breakpoint (&b->target_info);
/* FIXME drow/2003-10-07: This doesn't handle any other kinds of
breakpoints. It's wrong for watchpoints, for example. */
if (val != 0)
@ -1446,10 +1442,9 @@ remove_breakpoint (struct bp_location *b, insertion_state_t is)
/* No overlay handling: just remove the breakpoint. */
if (b->loc_type == bp_loc_hardware_breakpoint)
val = target_remove_hw_breakpoint (b->address,
b->shadow_contents);
val = target_remove_hw_breakpoint (&b->target_info);
else
val = target_remove_breakpoint (b->address, b->shadow_contents);
val = target_remove_breakpoint (&b->target_info);
}
else
{
@ -1460,14 +1455,12 @@ remove_breakpoint (struct bp_location *b, insertion_state_t is)
/* Yes -- overlay event support is not active, so we
should have set a breakpoint at the LMA. Remove it.
*/
CORE_ADDR addr = overlay_unmapped_address (b->address,
b->section);
/* Ignore any failures: if the LMA is in ROM, we will
have already warned when we failed to insert it. */
if (b->loc_type == bp_loc_hardware_breakpoint)
target_remove_hw_breakpoint (addr, b->shadow_contents);
target_remove_hw_breakpoint (&b->overlay_target_info);
else
target_remove_breakpoint (addr, b->shadow_contents);
target_remove_breakpoint (&b->overlay_target_info);
}
/* Did we set a breakpoint at the VMA?
If so, we will have marked the breakpoint 'inserted'. */
@ -1478,11 +1471,9 @@ remove_breakpoint (struct bp_location *b, insertion_state_t is)
unmapped, but let's not rely on that being safe. We
don't know what the overlay manager might do. */
if (b->loc_type == bp_loc_hardware_breakpoint)
val = target_remove_hw_breakpoint (b->address,
b->shadow_contents);
val = target_remove_hw_breakpoint (&b->target_info);
else
val = target_remove_breakpoint (b->address,
b->shadow_contents);
val = target_remove_breakpoint (&b->target_info);
}
else
{
@ -1570,8 +1561,7 @@ remove_breakpoint (struct bp_location *b, insertion_state_t is)
&& breakpoint_enabled (b->owner)
&& !b->duplicate)
{
val = target_remove_breakpoint (b->address, b->shadow_contents);
val = target_remove_breakpoint (&b->target_info);
if (val)
return val;
b->inserted = (is == mark_inserted);
@ -1581,8 +1571,7 @@ remove_breakpoint (struct bp_location *b, insertion_state_t is)
&& breakpoint_enabled (b->owner)
&& !b->duplicate)
{
val = target_remove_breakpoint (b->address, b->shadow_contents);
val = target_remove_breakpoint (&b->target_info);
if (val)
return val;
@ -6852,10 +6841,12 @@ delete_breakpoint (struct breakpoint *bpt)
_("another breakpoint was inserted on top of "
"a permanent breakpoint"));
memset (&b->loc->target_info, 0, sizeof (b->loc->target_info));
b->loc->target_info.placed_address = b->loc->address;
if (b->type == bp_hardware_breakpoint)
val = target_insert_hw_breakpoint (b->loc->address, b->loc->shadow_contents);
val = target_insert_hw_breakpoint (&b->loc->target_info);
else
val = target_insert_breakpoint (b->loc->address, b->loc->shadow_contents);
val = target_insert_breakpoint (&b->loc->target_info);
/* If there was an error in the insert, print a message, then stop execution. */
if (val != 0)
@ -7658,6 +7649,97 @@ decode_line_spec_1 (char *string, int funfirstline)
error (_("Junk at end of line specification: %s"), string);
return sals;
}
/* Create and insert a raw software breakpoint at PC. Return an
identifier, which should be used to remove the breakpoint later.
In general, places which call this should be using something on the
breakpoint chain instead; this function should be eliminated
someday. */
void *
deprecated_insert_raw_breakpoint (CORE_ADDR pc)
{
struct bp_target_info *bp_tgt;
bp_tgt = xmalloc (sizeof (struct bp_target_info));
memset (bp_tgt, 0, sizeof (struct bp_target_info));
bp_tgt->placed_address = pc;
if (target_insert_breakpoint (bp_tgt) != 0)
{
/* Could not insert the breakpoint. */
xfree (bp_tgt);
return NULL;
}
return bp_tgt;
}
/* Remove a breakpoint BP inserted by deprecated_insert_raw_breakpoint. */
int
deprecated_remove_raw_breakpoint (void *bp)
{
struct bp_target_info *bp_tgt = bp;
int ret;
ret = target_remove_breakpoint (bp_tgt);
xfree (bp_tgt);
return ret;
}
/* One (or perhaps two) breakpoints used for software single stepping. */
static void *single_step_breakpoints[2];
/* Create and insert a breakpoint for software single step. */
void
insert_single_step_breakpoint (CORE_ADDR next_pc)
{
void **bpt_p;
if (single_step_breakpoints[0] == NULL)
bpt_p = &single_step_breakpoints[0];
else
{
gdb_assert (single_step_breakpoints[1] == NULL);
bpt_p = &single_step_breakpoints[1];
}
/* NOTE drow/2006-04-11: A future improvement to this function would be
to only create the breakpoints once, and actually put them on the
breakpoint chain. That would let us use set_raw_breakpoint. We could
adjust the addresses each time they were needed. Doing this requires
corresponding changes elsewhere where single step breakpoints are
handled, however. So, for now, we use this. */
*bpt_p = deprecated_insert_raw_breakpoint (next_pc);
if (*bpt_p == NULL)
warning (_("Could not insert single-step breakpoint at 0x%s"),
paddr_nz (next_pc));
}
/* Remove and delete any breakpoints used for software single step. */
void
remove_single_step_breakpoints (void)
{
gdb_assert (single_step_breakpoints[0] != NULL);
/* See insert_single_step_breakpoint for more about this deprecated
call. */
deprecated_remove_raw_breakpoint (single_step_breakpoints[0]);
single_step_breakpoints[0] = NULL;
if (single_step_breakpoints[1] != NULL)
{
deprecated_remove_raw_breakpoint (single_step_breakpoints[1]);
single_step_breakpoints[1] = NULL;
}
}
/* This help string is used for the break, hbreak, tbreak and thbreak commands.
It is defined as a macro to prevent duplication.

53
gdb/breakpoint.h
View File

@ -185,6 +185,36 @@ enum target_hw_bp_type
hw_execute = 3 /* Execute HW breakpoint */
};
/* Information used by targets to insert and remove breakpoints. */
struct bp_target_info
{
/* Address at which the breakpoint was placed. This is normally the
same as ADDRESS from the bp_location, except when adjustment
happens in BREAKPOINT_FROM_PC. The most common form of
adjustment is stripping an alternate ISA marker from the PC which
is used to determine the type of breakpoint to insert. */
CORE_ADDR placed_address;
/* If the breakpoint lives in memory and reading that memory would
give back the breakpoint, instead of the original contents, then
the original contents are cached here. Only SHADOW_LEN bytes of
this buffer are valid, and only when the breakpoint is inserted. */
gdb_byte shadow_contents[BREAKPOINT_MAX];
/* The length of the data cached in SHADOW_CONTENTS. */
int shadow_len;
/* The size of the placed breakpoint, according to
BREAKPOINT_FROM_PC, when the breakpoint was inserted. This is
generally the same as SHADOW_LEN, unless we did not need
to read from the target to implement the memory breakpoint
(e.g. if a remote stub handled the details). We may still
need the size to remove the breakpoint safely. */
int placed_size;
};
/* GDB maintains two types of information about each breakpoint (or
watchpoint, or other related event). The first type corresponds
to struct breakpoint; this is a relatively high-level structure
@ -242,13 +272,6 @@ struct bp_location
associated with the address. Used primarily for overlay debugging. */
asection *section;
/* "Real" contents of byte where breakpoint has been inserted.
Valid only when breakpoints are in the program. Under the complete
control of the target insert_breakpoint and remove_breakpoint routines.
No other code should assume anything about the value(s) here.
Valid only for bp_loc_software_breakpoint. */
gdb_byte shadow_contents[BREAKPOINT_MAX];
/* Address at which breakpoint was requested, either by the user or
by GDB for internal breakpoints. This will usually be the same
as ``address'' (above) except for cases in which
@ -256,6 +279,12 @@ struct bp_location
which to place the breakpoint in order to comply with a
processor's architectual constraints. */
CORE_ADDR requested_address;
/* Details of the placed breakpoint, when inserted. */
struct bp_target_info target_info;
/* Similarly, for the breakpoint at an overlay's LMA, if necessary. */
struct bp_target_info overlay_target_info;
};
/* This structure is a collection of function pointers that, if available,
@ -796,6 +825,16 @@ extern void delete_command (char *arg, int from_tty);
remove fails. */
extern int remove_hw_watchpoints (void);
/* Manage a software single step breakpoint (or two). Insert may be called
twice before remove is called. */
extern void insert_single_step_breakpoint (CORE_ADDR);
extern void remove_single_step_breakpoints (void);
/* Manage manual breakpoints, separate from the normal chain of
breakpoints. These functions are used in murky target-specific
ways. Please do not add more uses! */
extern void *deprecated_insert_raw_breakpoint (CORE_ADDR);
extern int deprecated_remove_raw_breakpoint (void *);
/* Indicator of whether exception catchpoints should be nuked between
runs of a program. */

21
gdb/config/i386/nm-i386.h
View File

@ -52,13 +52,14 @@ extern int i386_stopped_by_hwbp (void);
true. Otherwise, return false. */
extern int i386_stopped_data_address (CORE_ADDR *);
/* Insert a hardware-assisted breakpoint at address ADDR. SHADOW is
unused. Return 0 on success, EBUSY on failure. */
extern int i386_insert_hw_breakpoint (CORE_ADDR addr, void *shadow);
/* Insert a hardware-assisted breakpoint at BP_TGT->placed_address.
Return 0 on success, EBUSY on failure. */
struct bp_target_info;
extern int i386_insert_hw_breakpoint (struct bp_target_info *bp_tgt);
/* Remove a hardware-assisted breakpoint at address ADDR. SHADOW is
unused. Return 0 on success, -1 on failure. */
extern int i386_remove_hw_breakpoint (CORE_ADDR addr, void *shadow);
/* Remove a hardware-assisted breakpoint at BP_TGT->placed_address.
Return 0 on success, -1 on failure. */
extern int i386_remove_hw_breakpoint (struct bp_target_info *bp_tgt);
/* Returns the number of hardware watchpoints of type TYPE that we can
set. Value is positive if we can set CNT watchpoints, zero if
@ -105,11 +106,11 @@ extern int i386_stopped_by_watchpoint (void);
#define target_remove_watchpoint(addr, len, type) \
i386_remove_watchpoint (addr, len, type)
#define target_insert_hw_breakpoint(addr, shadow) \
i386_insert_hw_breakpoint (addr, shadow)
#define target_insert_hw_breakpoint(bp_tgt) \
i386_insert_hw_breakpoint (bp_tgt)
#define target_remove_hw_breakpoint(addr, shadow) \
i386_remove_hw_breakpoint (addr, shadow)
#define target_remove_hw_breakpoint(bp_tgt) \
i386_remove_hw_breakpoint (bp_tgt)
/* child_post_startup_inferior used to
reset all debug registers by calling i386_cleanup_dregs (). */

4
gdb/corelow.c
View File

@ -86,8 +86,6 @@ static void get_core_registers (int);
static void add_to_thread_list (bfd *, asection *, void *);
static int ignore (CORE_ADDR, bfd_byte *);
static int core_file_thread_alive (ptid_t tid);
static void init_core_ops (void);
@ -603,7 +601,7 @@ core_xfer_partial (struct target_ops *ops, enum target_object object,
`gdb internal error' (since generic_mourn calls breakpoint_init_inferior). */
static int
ignore (CORE_ADDR addr, bfd_byte *contents)
ignore (struct bp_target_info *bp_tgt)
{
return 0;
}

32
gdb/cris-tdep.c
View File

@ -558,15 +558,6 @@ struct instruction_environment
int disable_interrupt;
} inst_env_type;
/* Save old breakpoints in order to restore the state before a single_step.
At most, two breakpoints will have to be remembered. */
typedef
char binsn_quantum[BREAKPOINT_MAX];
static binsn_quantum break_mem[2];
static CORE_ADDR next_pc = 0;
static CORE_ADDR branch_target_address = 0;
static unsigned char branch_break_inserted = 0;
/* Machine-dependencies in CRIS for opcodes. */
/* Instruction sizes. */
@ -2130,7 +2121,7 @@ static void
cris_software_single_step (enum target_signal ignore, int insert_breakpoints)
{
inst_env_type inst_env;
if (insert_breakpoints)
{
/* Analyse the present instruction environment and insert
@ -2146,28 +2137,19 @@ cris_software_single_step (enum target_signal ignore, int insert_breakpoints)
{
/* Insert at most two breakpoints. One for the next PC content
and possibly another one for a branch, jump, etc. */
next_pc = (CORE_ADDR) inst_env.reg[PC_REGNUM];
target_insert_breakpoint (next_pc, break_mem[0]);
CORE_ADDR next_pc = (CORE_ADDR) inst_env.reg[PC_REGNUM];
insert_single_step_breakpoint (next_pc);
if (inst_env.branch_found
&& (CORE_ADDR) inst_env.branch_break_address != next_pc)
{
branch_target_address =
(CORE_ADDR) inst_env.branch_break_address;
target_insert_breakpoint (branch_target_address, break_mem[1]);
branch_break_inserted = 1;
CORE_ADDR branch_target_address
= (CORE_ADDR) inst_env.branch_break_address;
insert_single_step_breakpoint (branch_target_address);
}
}
}
else
{
/* Remove breakpoints. */
target_remove_breakpoint (next_pc, break_mem[0]);
if (branch_break_inserted)
{
target_remove_breakpoint (branch_target_address, break_mem[1]);
branch_break_inserted = 0;
}
}
remove_single_step_breakpoints ();
}
/* Calculates the prefix value for quick offset addressing mode. */

9
gdb/doc/ChangeLog
View File

@ -1,3 +1,12 @@
2006-04-18 Daniel Jacobowitz <dan@codesourcery.com>
* gdbint.texinfo (x86 Watchpoints, Target Conditionals): Update insert
and remove breakpoint prototypes.
(Watchpoints): Move description of target_insert_hw_breakpoint and
target_remove_hw_breakpoint ...
(Breakpoints): ... to here. Document target_insert_breakpoint and
target_remove_breakpoint.
2006-04-17 Jim Blandy <jimb@codesourcery.com>
* gdb.texinfo (Packets): Note that 'addr' arguments to s, S, c,

63
gdb/doc/gdbint.texinfo
View File

@ -527,6 +527,47 @@ The basic definition of the software breakpoint is the macro
Basic breakpoint object handling is in @file{breakpoint.c}. However,
much of the interesting breakpoint action is in @file{infrun.c}.
@table @code
@cindex insert or remove software breakpoint
@findex target_remove_breakpoint
@findex target_insert_breakpoint
@item target_remove_breakpoint (@var{bp_tgt})
@itemx target_insert_breakpoint (@var{bp_tgt})
Insert or remove a software breakpoint at address
@code{@var{bp_tgt}->placed_address}. Returns zero for success,
non-zero for failure. On input, @var{bp_tgt} contains the address of the
breakpoint, and is otherwise initialized to zero. The fields of the
@code{struct bp_target_info} pointed to by @var{bp_tgt} are updated
to contain other information about the breakpoint on output. The field
@code{placed_address} may be updated if the breakpoint was placed at a
related address; the field @code{shadow_contents} contains the real
contents of the bytes where the breakpoint has been inserted,
if reading memory would return the breakpoint instead of the
underlying memory; the field @code{shadow_len} is the length of
memory cached in @code{shadow_contents}, if any; and the field
@code{placed_size} is optionally set and used by the target, if
it could differ from @code{shadow_len}.
For example, the remote target @samp{Z0} packet does not require
shadowing memory, so @code{shadow_len} is left at zero. However,
the length reported by @code{BREAKPOINT_FROM_PC} is cached in
@code{placed_size}, so that a matching @samp{z0} packet can be
used to remove the breakpoint.
@cindex insert or remove hardware breakpoint
@findex target_remove_hw_breakpoint
@findex target_insert_hw_breakpoint
@item target_remove_hw_breakpoint (@var{bp_tgt})
@itemx target_insert_hw_breakpoint (@var{bp_tgt})
Insert or remove a hardware-assisted breakpoint at address
@code{@var{bp_tgt}->placed_address}. Returns zero for success,
non-zero for failure. See @code{target_insert_breakpoint} for
a description of the @code{struct bp_target_info} pointed to by
@var{bp_tgt}; the @code{shadow_contents} and
@code{shadow_len} members are not used for hardware breakpoints,
but @code{placed_size} may be.
@end table
@section Single Stepping
@section Signal Handling
@ -657,18 +698,6 @@ defined by @file{breakpoint.h} as follows:
@noindent
These two macros should return 0 for success, non-zero for failure.
@cindex insert or remove hardware breakpoint
@findex target_remove_hw_breakpoint
@findex target_insert_hw_breakpoint
@item target_remove_hw_breakpoint (@var{addr}, @var{shadow})
@itemx target_insert_hw_breakpoint (@var{addr}, @var{shadow})
Insert or remove a hardware-assisted breakpoint at address @var{addr}.
Returns zero for success, non-zero for failure. @var{shadow} is the
real contents of the byte where the breakpoint has been inserted; it
is generally not valid when hardware breakpoints are used, but since
no other code touches these values, the implementations of the above
two macros can use them for their internal purposes.
@findex target_stopped_data_address
@item target_stopped_data_address (@var{addr_p})
If the inferior has some watchpoint that triggered, place the address
@ -858,11 +887,13 @@ the count goes to zero.
@findex i386_insert_hw_breakpoint
@findex i386_remove_hw_breakpoint
@item i386_insert_hw_breakpoint (@var{addr}, @var{shadow}
@itemx i386_remove_hw_breakpoint (@var{addr}, @var{shadow})
@item i386_insert_hw_breakpoint (@var{bp_tgt})
@itemx i386_remove_hw_breakpoint (@var{bp_tgt})
These functions insert and remove hardware-assisted breakpoints. The
macros @code{target_insert_hw_breakpoint} and
@code{target_remove_hw_breakpoint} are set to call these functions.
The argument is a @code{struct bp_target_info *}, as described in
the documentation for @code{target_insert_breakpoint}.
These functions work like @code{i386_insert_watchpoint} and
@code{i386_remove_watchpoint}, respectively, except that they set up
the debug registers to watch instruction execution, and each
@ -3229,8 +3260,8 @@ instruction of the architecture.
Replaces all the other @var{BREAKPOINT} macros.
@item MEMORY_INSERT_BREAKPOINT (@var{addr}, @var{contents_cache})
@itemx MEMORY_REMOVE_BREAKPOINT (@var{addr}, @var{contents_cache})
@item MEMORY_INSERT_BREAKPOINT (@var{bp_tgt})
@itemx MEMORY_REMOVE_BREAKPOINT (@var{bp_tgt})
@findex MEMORY_REMOVE_BREAKPOINT
@findex MEMORY_INSERT_BREAKPOINT
Insert or remove memory based breakpoints. Reasonable defaults

4
gdb/exec.c
View File

@ -59,8 +59,6 @@ static void set_section_command (char *, int);
static void exec_files_info (struct target_ops *);
static int ignore (CORE_ADDR, bfd_byte *);
static void init_exec_ops (void);
void _initialize_exec (void);
@ -691,7 +689,7 @@ exec_set_section_address (const char *filename, int index, CORE_ADDR address)
breakpoint_init_inferior). */
static int
ignore (CORE_ADDR addr, bfd_byte *contents)
ignore (struct bp_target_info *bp_tgt)
{
return 0;
}

16
gdb/gdbarch.c
View File

@ -1250,8 +1250,8 @@ gdbarch_dump (struct gdbarch *current_gdbarch, struct ui_file *file)
#ifdef MEMORY_INSERT_BREAKPOINT
fprintf_unfiltered (file,
"gdbarch_dump: %s # %s\n",
"MEMORY_INSERT_BREAKPOINT(addr, contents_cache)",
XSTRING (MEMORY_INSERT_BREAKPOINT (addr, contents_cache)));
"MEMORY_INSERT_BREAKPOINT(bp_tgt)",
XSTRING (MEMORY_INSERT_BREAKPOINT (bp_tgt)));
#endif
fprintf_unfiltered (file,
"gdbarch_dump: memory_insert_breakpoint = <0x%lx>\n",
@ -1259,8 +1259,8 @@ gdbarch_dump (struct gdbarch *current_gdbarch, struct ui_file *file)
#ifdef MEMORY_REMOVE_BREAKPOINT
fprintf_unfiltered (file,
"gdbarch_dump: %s # %s\n",
"MEMORY_REMOVE_BREAKPOINT(addr, contents_cache)",
XSTRING (MEMORY_REMOVE_BREAKPOINT (addr, contents_cache)));
"MEMORY_REMOVE_BREAKPOINT(bp_tgt)",
XSTRING (MEMORY_REMOVE_BREAKPOINT (bp_tgt)));
#endif
fprintf_unfiltered (file,
"gdbarch_dump: memory_remove_breakpoint = <0x%lx>\n",
@ -2934,13 +2934,13 @@ set_gdbarch_adjust_breakpoint_address (struct gdbarch *gdbarch,
}
int
gdbarch_memory_insert_breakpoint (struct gdbarch *gdbarch, CORE_ADDR addr, gdb_byte *contents_cache)
gdbarch_memory_insert_breakpoint (struct gdbarch *gdbarch, struct bp_target_info *bp_tgt)
{
gdb_assert (gdbarch != NULL);
gdb_assert (gdbarch->memory_insert_breakpoint != NULL);
if (gdbarch_debug >= 2)
fprintf_unfiltered (gdb_stdlog, "gdbarch_memory_insert_breakpoint called\n");
return gdbarch->memory_insert_breakpoint (addr, contents_cache);
return gdbarch->memory_insert_breakpoint (bp_tgt);
}
void
@ -2951,13 +2951,13 @@ set_gdbarch_memory_insert_breakpoint (struct gdbarch *gdbarch,
}
int
gdbarch_memory_remove_breakpoint (struct gdbarch *gdbarch, CORE_ADDR addr, gdb_byte *contents_cache)
gdbarch_memory_remove_breakpoint (struct gdbarch *gdbarch, struct bp_target_info *bp_tgt)
{
gdb_assert (gdbarch != NULL);
gdb_assert (gdbarch->memory_remove_breakpoint != NULL);
if (gdbarch_debug >= 2)
fprintf_unfiltered (gdb_stdlog, "gdbarch_memory_remove_breakpoint called\n");
return gdbarch->memory_remove_breakpoint (addr, contents_cache);
return gdbarch->memory_remove_breakpoint (bp_tgt);
}
void

13
gdb/gdbarch.h
View File

@ -49,6 +49,7 @@ struct regset;
struct disassemble_info;
struct target_ops;
struct obstack;
struct bp_target_info;
extern struct gdbarch *current_gdbarch;
@ -899,24 +900,24 @@ typedef CORE_ADDR (gdbarch_adjust_breakpoint_address_ftype) (struct gdbarch *gdb
extern CORE_ADDR gdbarch_adjust_breakpoint_address (struct gdbarch *gdbarch, CORE_ADDR bpaddr);
extern void set_gdbarch_adjust_breakpoint_address (struct gdbarch *gdbarch, gdbarch_adjust_breakpoint_address_ftype *adjust_breakpoint_address);
typedef int (gdbarch_memory_insert_breakpoint_ftype) (CORE_ADDR addr, gdb_byte *contents_cache);
extern int gdbarch_memory_insert_breakpoint (struct gdbarch *gdbarch, CORE_ADDR addr, gdb_byte *contents_cache);
typedef int (gdbarch_memory_insert_breakpoint_ftype) (struct bp_target_info *bp_tgt);
extern int gdbarch_memory_insert_breakpoint (struct gdbarch *gdbarch, struct bp_target_info *bp_tgt);
extern void set_gdbarch_memory_insert_breakpoint (struct gdbarch *gdbarch, gdbarch_memory_insert_breakpoint_ftype *memory_insert_breakpoint);
#if !defined (GDB_TM_FILE) && defined (MEMORY_INSERT_BREAKPOINT)
#error "Non multi-arch definition of MEMORY_INSERT_BREAKPOINT"
#endif
#if !defined (MEMORY_INSERT_BREAKPOINT)
#define MEMORY_INSERT_BREAKPOINT(addr, contents_cache) (gdbarch_memory_insert_breakpoint (current_gdbarch, addr, contents_cache))
#define MEMORY_INSERT_BREAKPOINT(bp_tgt) (gdbarch_memory_insert_breakpoint (current_gdbarch, bp_tgt))
#endif
typedef int (gdbarch_memory_remove_breakpoint_ftype) (CORE_ADDR addr, gdb_byte *contents_cache);
extern int gdbarch_memory_remove_breakpoint (struct gdbarch *gdbarch, CORE_ADDR addr, gdb_byte *contents_cache);
typedef int (gdbarch_memory_remove_breakpoint_ftype) (struct bp_target_info *bp_tgt);
extern int gdbarch_memory_remove_breakpoint (struct gdbarch *gdbarch, struct bp_target_info *bp_tgt);
extern void set_gdbarch_memory_remove_breakpoint (struct gdbarch *gdbarch, gdbarch_memory_remove_breakpoint_ftype *memory_remove_breakpoint);
#if !defined (GDB_TM_FILE) && defined (MEMORY_REMOVE_BREAKPOINT)
#error "Non multi-arch definition of MEMORY_REMOVE_BREAKPOINT"
#endif
#if !defined (MEMORY_REMOVE_BREAKPOINT)
#define MEMORY_REMOVE_BREAKPOINT(addr, contents_cache) (gdbarch_memory_remove_breakpoint (current_gdbarch, addr, contents_cache))
#define MEMORY_REMOVE_BREAKPOINT(bp_tgt) (gdbarch_memory_remove_breakpoint (current_gdbarch, bp_tgt))
#endif
extern CORE_ADDR gdbarch_decr_pc_after_break (struct gdbarch *gdbarch);

5
gdb/gdbarch.sh
View File

@ -549,8 +549,8 @@ f:=:CORE_ADDR:skip_prologue:CORE_ADDR ip:ip:0:0
f:=:int:inner_than:CORE_ADDR lhs, CORE_ADDR rhs:lhs, rhs:0:0
f:=:const gdb_byte *:breakpoint_from_pc:CORE_ADDR *pcptr, int *lenptr:pcptr, lenptr::0:
M::CORE_ADDR:adjust_breakpoint_address:CORE_ADDR bpaddr:bpaddr
f:=:int:memory_insert_breakpoint:CORE_ADDR addr, gdb_byte *contents_cache:addr, contents_cache:0:default_memory_insert_breakpoint::0
f:=:int:memory_remove_breakpoint:CORE_ADDR addr, gdb_byte *contents_cache:addr, contents_cache:0:default_memory_remove_breakpoint::0
f:=:int:memory_insert_breakpoint:struct bp_target_info *bp_tgt:bp_tgt:0:default_memory_insert_breakpoint::0
f:=:int:memory_remove_breakpoint:struct bp_target_info *bp_tgt:bp_tgt:0:default_memory_remove_breakpoint::0
v:=:CORE_ADDR:decr_pc_after_break:::0:::0
# A function can be addressed by either it's "pointer" (possibly a
@ -771,6 +771,7 @@ struct regset;
struct disassemble_info;
struct target_ops;
struct obstack;
struct bp_target_info;
extern struct gdbarch *current_gdbarch;
EOF

14
gdb/i386-nat.c
View File

@ -625,12 +625,13 @@ i386_stopped_by_hwbp (void)
return 0;
}
/* Insert a hardware-assisted breakpoint at address ADDR. SHADOW is
unused. Return 0 on success, EBUSY on failure. */
/* Insert a hardware-assisted breakpoint at BP_TGT->placed_address.
Return 0 on success, EBUSY on failure. */
int
i386_insert_hw_breakpoint (CORE_ADDR addr, void *shadow)
i386_insert_hw_breakpoint (struct bp_target_info *bp_tgt)
{
unsigned len_rw = i386_length_and_rw_bits (1, hw_execute);
CORE_ADDR addr = bp_tgt->placed_address;
int retval = i386_insert_aligned_watchpoint (addr, len_rw) ? EBUSY : 0;
if (maint_show_dr)
@ -639,13 +640,14 @@ i386_insert_hw_breakpoint (CORE_ADDR addr, void *shadow)
return retval;
}
/* Remove a hardware-assisted breakpoint at address ADDR. SHADOW is
unused. Return 0 on success, -1 on failure. */
/* Remove a hardware-assisted breakpoint at BP_TGT->placed_address.
Return 0 on success, -1 on failure. */
int
i386_remove_hw_breakpoint (CORE_ADDR addr, void *shadow)
i386_remove_hw_breakpoint (struct bp_target_info *bp_tgt)
{
unsigned len_rw = i386_length_and_rw_bits (1, hw_execute);
CORE_ADDR addr = bp_tgt->placed_address;
int retval = i386_remove_aligned_watchpoint (addr, len_rw);
if (maint_show_dr)

11
gdb/ia64-tdep.c
View File

@ -550,8 +550,9 @@ fetch_instruction (CORE_ADDR addr, instruction_type *it, long long *instr)
#define IA64_BREAKPOINT 0x00003333300LL
static int
ia64_memory_insert_breakpoint (CORE_ADDR addr, bfd_byte *contents_cache)
ia64_memory_insert_breakpoint (struct bp_target_info *bp_tgt)
{
CORE_ADDR addr = bp_tgt->placed_address;
char bundle[BUNDLE_LEN];
int slotnum = (int) (addr & 0x0f) / SLOT_MULTIPLIER;
long long instr;
@ -574,7 +575,8 @@ ia64_memory_insert_breakpoint (CORE_ADDR addr, bfd_byte *contents_cache)
}
instr = slotN_contents (bundle, slotnum);
memcpy(contents_cache, &instr, sizeof(instr));
memcpy (bp_tgt->shadow_contents, &instr, sizeof (instr));
bp_tgt->placed_size = bp_tgt->shadow_len = sizeof (instr);
replace_slotN_contents (bundle, IA64_BREAKPOINT, slotnum);
if (val == 0)
target_write_memory (addr, bundle, BUNDLE_LEN);
@ -583,8 +585,9 @@ ia64_memory_insert_breakpoint (CORE_ADDR addr, bfd_byte *contents_cache)
}
static int
ia64_memory_remove_breakpoint (CORE_ADDR addr, bfd_byte *contents_cache)
ia64_memory_remove_breakpoint (struct bp_target_info *bp_tgt)
{
CORE_ADDR addr = bp_tgt->placed_address;
char bundle[BUNDLE_LEN];
int slotnum = (addr & 0x0f) / SLOT_MULTIPLIER;
long long instr;
@ -603,7 +606,7 @@ ia64_memory_remove_breakpoint (CORE_ADDR addr, bfd_byte *contents_cache)
slotnum = 2;
}
memcpy (&instr, contents_cache, sizeof instr);
memcpy (&instr, bp_tgt->shadow_contents, sizeof instr);
replace_slotN_contents (bundle, instr, slotnum);
if (val == 0)
target_write_memory (addr, bundle, BUNDLE_LEN);

10
gdb/m32r-tdep.c
View File

@ -81,10 +81,12 @@ m32r_frame_align (struct gdbarch *gdbarch, CORE_ADDR sp)
The following functions take care of this behavior. */
static int
m32r_memory_insert_breakpoint (CORE_ADDR addr, bfd_byte *contents_cache)
m32r_memory_insert_breakpoint (struct bp_target_info *bp_tgt)
{
CORE_ADDR addr = bp_tgt->placed_address;
int val;
gdb_byte buf[4];
gdb_byte *contents_cache = bp_tgt->shadow_contents;
gdb_byte bp_entry[] = { 0x10, 0xf1 }; /* dpt */
/* Save the memory contents. */
@ -92,6 +94,8 @@ m32r_memory_insert_breakpoint (CORE_ADDR addr, bfd_byte *contents_cache)
if (val != 0)
return val; /* return error */
bp_tgt->placed_size = bp_tgt->shadow_len = 4;
/* Determine appropriate breakpoint contents and size for this address. */
if (TARGET_BYTE_ORDER == BFD_ENDIAN_BIG)
{
@ -134,10 +138,12 @@ m32r_memory_insert_breakpoint (CORE_ADDR addr, bfd_byte *contents_cache)
}
static int
m32r_memory_remove_breakpoint (CORE_ADDR addr, bfd_byte *contents_cache)
m32r_memory_remove_breakpoint (struct bp_target_info *bp_tgt)
{
CORE_ADDR addr = bp_tgt->placed_address;
int val;
gdb_byte buf[4];
gdb_byte *contents_cache = bp_tgt->shadow_contents;
buf[0] = contents_cache[0];
buf[1] = contents_cache[1];

47
gdb/mem-break.c
View File

@ -33,60 +33,57 @@
#include "target.h"
/* Insert a breakpoint on targets that don't have any better breakpoint
support. We read the contents of the target location and stash it,
then overwrite it with a breakpoint instruction. ADDR is the target
location in the target machine. CONTENTS_CACHE is a pointer to
memory allocated for saving the target contents. It is guaranteed
by the caller to be long enough to save BREAKPOINT_LEN bytes (this
is accomplished via BREAKPOINT_MAX). */
/* Insert a breakpoint on targets that don't have any better
breakpoint support. We read the contents of the target location
and stash it, then overwrite it with a breakpoint instruction.
BP_TGT->placed_address is the target location in the target
machine. BP_TGT->shadow_contents is some memory allocated for
saving the target contents. It is guaranteed by the caller to be
long enough to save BREAKPOINT_LEN bytes (this is accomplished via
BREAKPOINT_MAX). */
int
default_memory_insert_breakpoint (CORE_ADDR addr, bfd_byte *contents_cache)
default_memory_insert_breakpoint (struct bp_target_info *bp_tgt)
{
int val;
const unsigned char *bp;
int bplen;
/* Determine appropriate breakpoint contents and size for this address. */
bp = BREAKPOINT_FROM_PC (&addr, &bplen);
bp = BREAKPOINT_FROM_PC (&bp_tgt->placed_address, &bp_tgt->placed_size);
if (bp == NULL)
error (_("Software breakpoints not implemented for this target."));
/* Save the memory contents. */
val = target_read_memory (addr, contents_cache, bplen);
bp_tgt->shadow_len = bp_tgt->placed_size;
val = target_read_memory (bp_tgt->placed_address, bp_tgt->shadow_contents,
bp_tgt->placed_size);
/* Write the breakpoint. */
if (val == 0)
val = target_write_memory (addr, bp, bplen);
val = target_write_memory (bp_tgt->placed_address, bp,
bp_tgt->placed_size);
return val;
}
int
default_memory_remove_breakpoint (CORE_ADDR addr, bfd_byte *contents_cache)
default_memory_remove_breakpoint (struct bp_target_info *bp_tgt)
{
const bfd_byte *bp;
int bplen;
/* Determine appropriate breakpoint contents and size for this address. */
bp = BREAKPOINT_FROM_PC (&addr, &bplen);
if (bp == NULL)
error (_("Software breakpoints not implemented for this target."));
return target_write_memory (addr, contents_cache, bplen);
return target_write_memory (bp_tgt->placed_address, bp_tgt->shadow_contents,
bp_tgt->placed_size);
}
int
memory_insert_breakpoint (CORE_ADDR addr, bfd_byte *contents_cache)
memory_insert_breakpoint (struct bp_target_info *bp_tgt)
{
return MEMORY_INSERT_BREAKPOINT(addr, contents_cache);
return MEMORY_INSERT_BREAKPOINT (bp_tgt);
}
int
memory_remove_breakpoint (CORE_ADDR addr, bfd_byte *contents_cache)
memory_remove_breakpoint (struct bp_target_info *bp_tgt)
{
return MEMORY_REMOVE_BREAKPOINT(addr, contents_cache);
return MEMORY_REMOVE_BREAKPOINT (bp_tgt);
}

9
gdb/mips-tdep.c
View File

@ -2188,20 +2188,17 @@ mips_addr_bits_remove (CORE_ADDR addr)
void
mips_software_single_step (enum target_signal sig, int insert_breakpoints_p)
{
static CORE_ADDR next_pc;
typedef char binsn_quantum[BREAKPOINT_MAX];
static binsn_quantum break_mem;
CORE_ADDR pc;
CORE_ADDR pc, next_pc;
if (insert_breakpoints_p)
{
pc = read_register (mips_regnum (current_gdbarch)->pc);
next_pc = mips_next_pc (pc);
target_insert_breakpoint (next_pc, break_mem);
insert_single_step_breakpoint (next_pc);
}
else
target_remove_breakpoint (next_pc, break_mem);
remove_single_step_breakpoints ();
}
/* Test whether the PC points to the return instruction at the

14
gdb/monitor.c
View File

@ -85,8 +85,6 @@ static int monitor_xfer_memory (CORE_ADDR memaddr, gdb_byte *myaddr, int len,
struct mem_attrib *attrib,
struct target_ops *target);
static void monitor_files_info (struct target_ops *ops);
static int monitor_insert_breakpoint (CORE_ADDR addr, gdb_byte *shadow);
static int monitor_remove_breakpoint (CORE_ADDR addr, gdb_byte *shadow);
static void monitor_kill (void);
static void monitor_load (char *file, int from_tty);
static void monitor_mourn_inferior (void);
@ -2037,8 +2035,9 @@ monitor_mourn_inferior (void)
/* Tell the monitor to add a breakpoint. */
static int
monitor_insert_breakpoint (CORE_ADDR addr, gdb_byte *shadow)
monitor_insert_breakpoint (struct bp_target_info *bp_tgt)
{
CORE_ADDR addr = bp_tgt->placed_address;
int i;
const unsigned char *bp;
int bplen;
@ -2052,13 +2051,14 @@ monitor_insert_breakpoint (CORE_ADDR addr, gdb_byte *shadow)
/* Determine appropriate breakpoint size for this address. */
bp = gdbarch_breakpoint_from_pc (current_gdbarch, &addr, &bplen);
bp_tgt->placed_address = addr;
bp_tgt->placed_size = bplen;
for (i = 0; i < current_monitor->num_breakpoints; i++)
{
if (breakaddr[i] == 0)
{
breakaddr[i] = addr;
monitor_read_memory (addr, shadow, bplen);
monitor_printf (current_monitor->set_break, addr);
monitor_expect_prompt (NULL, 0);
return 0;
@ -2071,17 +2071,15 @@ monitor_insert_breakpoint (CORE_ADDR addr, gdb_byte *shadow)
/* Tell the monitor to remove a breakpoint. */
static int
monitor_remove_breakpoint (CORE_ADDR addr, gdb_byte *shadow)
monitor_remove_breakpoint (struct bp_target_info *bp_tgt)
{
CORE_ADDR addr = bp_tgt->placed_address;
int i;
monitor_debug ("MON rmbkpt %s\n", paddr (addr));
if (current_monitor->clr_break == NULL)
error (_("No clr_break defined for this monitor"));
if (current_monitor->flags & MO_ADDR_BITS_REMOVE)
addr = ADDR_BITS_REMOVE (addr);
for (i = 0; i < current_monitor->num_breakpoints; i++)
{
if (breakaddr[i] == addr)

22
gdb/nto-procfs.c
View File

@ -76,10 +76,6 @@ static ptid_t do_attach (ptid_t ptid);
static int procfs_can_use_hw_breakpoint (int, int, int);
static int procfs_insert_hw_breakpoint (CORE_ADDR, char *);
static int procfs_remove_hw_breakpoint (CORE_ADDR addr, char *);
static int procfs_insert_hw_watchpoint (CORE_ADDR addr, int len, int type);
static int procfs_remove_hw_watchpoint (CORE_ADDR addr, int len, int type);
@ -812,27 +808,29 @@ procfs_breakpoint (CORE_ADDR addr, int type, int size)
}
static int
procfs_insert_breakpoint (CORE_ADDR addr, char *contents_cache)
procfs_insert_breakpoint (struct bp_target_info *bp_tgt)
{
return procfs_breakpoint (addr, _DEBUG_BREAK_EXEC, 0);
return procfs_breakpoint (bp_tgt->placed_address, _DEBUG_BREAK_EXEC, 0);
}
static int
procfs_remove_breakpoint (CORE_ADDR addr, char *contents_cache)
procfs_remove_breakpoint (struct bp_target_info *bp_tgt)
{
return procfs_breakpoint (addr, _DEBUG_BREAK_EXEC, -1);
return procfs_breakpoint (bp_tgt->placed_address, _DEBUG_BREAK_EXEC, -1);
}
static int
procfs_insert_hw_breakpoint (CORE_ADDR addr, char *contents_cache)
procfs_insert_hw_breakpoint (struct bp_target_info *bp_tgt)
{
return procfs_breakpoint (addr, _DEBUG_BREAK_EXEC | _DEBUG_BREAK_HW, 0);
return procfs_breakpoint (bp_tgt->placed_address,
_DEBUG_BREAK_EXEC | _DEBUG_BREAK_HW, 0);
}
static int
procfs_remove_hw_breakpoint (CORE_ADDR addr, char *contents_cache)
procfs_remove_hw_breakpoint (struct bp_target_info *bp_tgt)
{
return procfs_breakpoint (addr, _DEBUG_BREAK_EXEC | _DEBUG_BREAK_HW, -1);
return procfs_breakpoint (bp_tgt->placed_address,
_DEBUG_BREAK_EXEC | _DEBUG_BREAK_HW, -1);
}
static void

19
gdb/ocd.c
View File

@ -1048,28 +1048,27 @@ ocd_load (char *args, int from_tty)
/* BDM (at least on CPU32) uses a different breakpoint */
int
ocd_insert_breakpoint (CORE_ADDR addr, char *contents_cache)
ocd_insert_breakpoint (struct bp_target_info *bp_tgt)
{
static char break_insn[] = BDM_BREAKPOINT;
int val;
val = target_read_memory (addr, contents_cache, sizeof (break_insn));
bp_tgt->placed_size = bp_tgt->shadow_len = sizeof (break_insn);
val = target_read_memory (bp_tgt->placed_address, bp_tgt->shadow_contents,
bp_tgt->placed_size);
if (val == 0)
val = target_write_memory (addr, break_insn, sizeof (break_insn));
val = target_write_memory (bp_tgt->placed_address, break_insn,
bp_tgt->placed_size);
return val;
}
int
ocd_remove_breakpoint (CORE_ADDR addr, char *contents_cache)
ocd_remove_breakpoint (struct bp_target_info *bp_tgt)
{
static char break_insn[] = BDM_BREAKPOINT;
int val;
val = target_write_memory (addr, contents_cache, sizeof (break_insn));
return val;
return target_write_memory (bp_tgt->placed_address, bp_tgt->shadow_contents,
bp_tgt->placed_size);
}
static void

4
gdb/ocd.h
View File

@ -135,8 +135,8 @@ void ocd_write_bdm_register (int bdm_regno, CORE_ADDR reg);
int ocd_wait (void);
int ocd_insert_breakpoint (CORE_ADDR addr, char *contents_cache);
int ocd_remove_breakpoint (CORE_ADDR addr, char *contents_cache);
int ocd_insert_breakpoint (struct bp_target_info *bp_tgt);
int ocd_remove_breakpoint (struct bp_target_info *bp_tgt);
int ocd_write_bytes (CORE_ADDR memaddr, char *myaddr, int len);

6
gdb/ppc-linux-tdep.c
View File

@ -457,9 +457,9 @@ ppc_linux_skip_trampoline_code (CORE_ADDR pc)
regard to removing breakpoints in some potentially self modifying
code. */
int
ppc_linux_memory_remove_breakpoint (CORE_ADDR addr,
gdb_byte *contents_cache)
ppc_linux_memory_remove_breakpoint (struct bp_target_info *bp_tgt)
{
CORE_ADDR addr = bp_tgt->placed_address;
const unsigned char *bp;
int val;
int bplen;
@ -476,7 +476,7 @@ ppc_linux_memory_remove_breakpoint (CORE_ADDR addr,
program modified the code on us, so it is wrong to put back the
old value */
if (val == 0 && memcmp (bp, old_contents, bplen) == 0)
val = target_write_memory (addr, contents_cache, bplen);
val = target_write_memory (addr, bp_tgt->shadow_contents, bplen);
return val;
}

3
gdb/ppc-tdep.h
View File

@ -56,8 +56,7 @@ CORE_ADDR ppc64_sysv_abi_push_dummy_call (struct gdbarch *gdbarch,
CORE_ADDR struct_addr);
CORE_ADDR ppc64_sysv_abi_adjust_breakpoint_address (struct gdbarch *gdbarch,
CORE_ADDR bpaddr);
int ppc_linux_memory_remove_breakpoint (CORE_ADDR addr,
gdb_byte *contents_cache);
int ppc_linux_memory_remove_breakpoint (struct bp_target_info *bp_tgt);
struct link_map_offsets *ppc_linux_svr4_fetch_link_map_offsets (void);
void ppc_linux_supply_gregset (struct regcache *regcache,
int regnum, const void *gregs, size_t size,

18
gdb/procfs.c
View File

@ -3375,7 +3375,7 @@ static void remove_dbx_link_breakpoint (void);
the address of the breakpoint, and the code that was replaced by
a breakpoint. */
static int dbx_link_bpt_addr = 0;
static char dbx_link_shadow_contents[BREAKPOINT_MAX];
static void *dbx_link_bpt;
/*
* Function: procfs_debug_inferior
@ -4777,6 +4777,14 @@ procfs_mourn_inferior (void)
destroy_procinfo (pi);
}
unpush_target (&procfs_ops);
if (dbx_link_bpt != NULL)
{
deprecated_remove_raw_breakpoint (dbx_link_bpt);
dbx_link_bpt_addr = 0;
dbx_link_bpt = NULL;
}
generic_mourn_inferior ();
}
@ -4886,7 +4894,6 @@ procfs_init_inferior (int pid)
has been inserted, the syssgi() notifications are no longer necessary,
so they should be canceled. */
proc_trace_syscalls_1 (pi, SYS_syssgi, PR_SYSEXIT, FLAG_SET, 0);
dbx_link_bpt_addr = 0;
#endif
}
@ -5571,11 +5578,11 @@ remove_dbx_link_breakpoint (void)
if (dbx_link_bpt_addr == 0)
return;
if (memory_remove_breakpoint (dbx_link_bpt_addr,
dbx_link_shadow_contents) != 0)
if (deprecated_remove_raw_breakpoint (dbx_link_bpt) != 0)
warning (_("Unable to remove __dbx_link breakpoint."));
dbx_link_bpt_addr = 0;
dbx_link_bpt = NULL;
}
/* Return the address of the __dbx_link() function in the file
@ -5643,7 +5650,8 @@ insert_dbx_link_bpt_in_file (int fd, CORE_ADDR ignored)
{
/* Insert the breakpoint. */
dbx_link_bpt_addr = sym_addr;
if (target_insert_breakpoint (sym_addr, dbx_link_shadow_contents) != 0)
dbx_link_bpt = deprecated_insert_raw_breakpoint (sym_addr);
if (dbx_link_bpt == NULL)
{
warning (_("Failed to insert dbx_link breakpoint."));
bfd_close (abfd);

12
gdb/remote-e7000.c
View File

@ -1702,8 +1702,9 @@ static CORE_ADDR breakaddr[MAX_BREAKPOINTS] =
{0};
static int
e7000_insert_breakpoint (CORE_ADDR addr, bfd_byte *shadow)
e7000_insert_breakpoint (struct bp_target_info *bp_tgt)
{
CORE_ADDR addr = bp_tgt->placed_address;
int i;
char buf[200];
#if 0
@ -1728,7 +1729,8 @@ e7000_insert_breakpoint (CORE_ADDR addr, bfd_byte *shadow)
}
#else
#if 0
e7000_read_inferior_memory (addr, shadow, 2);
bp_tgt->shadow_len = 2;
e7000_read_inferior_memory (addr, bp_tgt->shadow_contents, 2);
e7000_write_inferior_memory (addr, nop, 2);
#endif
@ -1745,8 +1747,9 @@ e7000_insert_breakpoint (CORE_ADDR addr, bfd_byte *shadow)
}
static int
e7000_remove_breakpoint (CORE_ADDR addr, bfd_byte *shadow)
e7000_remove_breakpoint (struct bp_target_info *bp_tgt)
{
CORE_ADDR addr = bp_tgt->placed_address;
int i;
char buf[200];
@ -1773,7 +1776,8 @@ e7000_remove_breakpoint (CORE_ADDR addr, bfd_byte *shadow)
#if 0
/* Replace the insn under the break */
e7000_write_inferior_memory (addr, shadow, 2);
e7000_write_inferior_memory (addr, bp_tgt->shadow_contents,
bp_tgt->shadow_len);
#endif
#endif

14
gdb/remote-m32r-sdi.c
View File

@ -1141,15 +1141,16 @@ m32r_mourn_inferior (void)
}
static int
m32r_insert_breakpoint (CORE_ADDR addr, bfd_byte *shadow)
m32r_insert_breakpoint (struct bp_target_info *bp_tgt)
{
CORE_ADDR addr = bp_tgt->placed_address;
int ib_breakpoints;
unsigned char buf[13];
int i, c;
if (remote_debug)
fprintf_unfiltered (gdb_stdlog, "m32r_insert_breakpoint(%08lx,\"%s\")\n",
addr, shadow);
fprintf_unfiltered (gdb_stdlog, "m32r_insert_breakpoint(%08lx,...)\n",
addr);
if (use_ib_breakpoints)
ib_breakpoints = max_ib_breakpoints;
@ -1183,13 +1184,14 @@ m32r_insert_breakpoint (CORE_ADDR addr, bfd_byte *shadow)
}
static int
m32r_remove_breakpoint (CORE_ADDR addr, bfd_byte *shadow)
m32r_remove_breakpoint (struct bp_target_info *bp_tgt)
{
CORE_ADDR addr = bp_tgt->placed_address;
int i;
if (remote_debug)
fprintf_unfiltered (gdb_stdlog, "m32r_remove_breakpoint(%08lx,\"%s\")\n",
addr, shadow);
fprintf_unfiltered (gdb_stdlog, "m32r_remove_breakpoint(%08lx)\n",
addr);
for (i = 0; i < MAX_BREAKPOINTS; i++)
{

21
gdb/remote-mips.c
View File

@ -2216,27 +2216,28 @@ mips_mourn_inferior (void)
/* Insert a breakpoint. On targets that don't have built-in
breakpoint support, we read the contents of the target location and
stash it, then overwrite it with a breakpoint instruction. ADDR is
the target location in the target machine. CONTENTS_CACHE is a
pointer to memory allocated for saving the target contents. It is
guaranteed by the caller to be long enough to save the breakpoint
length returned by BREAKPOINT_FROM_PC. */
the target location in the target machine. BPT is the breakpoint
being inserted or removed, which contains memory for saving the
target contents. */
static int
mips_insert_breakpoint (CORE_ADDR addr, char *contents_cache)
mips_insert_breakpoint (struct bp_target_info *bp_tgt)
{
if (monitor_supports_breakpoints)
return set_breakpoint (addr, MIPS_INSN32_SIZE, BREAK_FETCH);
return set_breakpoint (bp_tgt->placed_address, MIPS_INSN32_SIZE,
BREAK_FETCH);
else
return memory_insert_breakpoint (addr, contents_cache);
return memory_insert_breakpoint (bp_tgt);
}
static int
mips_remove_breakpoint (CORE_ADDR addr, char *contents_cache)
mips_remove_breakpoint (struct bp_target_info *bp_tgt)
{
if (monitor_supports_breakpoints)
return clear_breakpoint (addr, MIPS_INSN32_SIZE, BREAK_FETCH);
return clear_breakpoint (bp_tgt->placed_address, MIPS_INSN32_SIZE,
BREAK_FETCH);
else
return memory_remove_breakpoint (addr, contents_cache);
return memory_remove_breakpoint (bp_tgt);
}
/* Tell whether this target can support a hardware breakpoint. CNT

17
gdb/remote-rdp.c
View File

@ -1050,8 +1050,10 @@ rdp_execute (void)
}
static int
remote_rdp_insert_breakpoint (CORE_ADDR addr, bfd_byte *save)
remote_rdp_insert_breakpoint (struct bp_target_info *bp_tgt)
{
CORE_ADDR addr = bp_tgt->placed_address;
int res;
if (ds.rdi_level > 0)
{
@ -1059,7 +1061,7 @@ remote_rdp_insert_breakpoint (CORE_ADDR addr, bfd_byte *save)
RDP_SET_BREAK,
addr,
RDP_SET_BREAK_TYPE_PC_EQUAL | RDP_SET_BREAK_TYPE_GET_HANDLE,
save,
bp_tgt->shadow_contents,
&res);
}
else
@ -1074,14 +1076,15 @@ remote_rdp_insert_breakpoint (CORE_ADDR addr, bfd_byte *save)
}
static int
remote_rdp_remove_breakpoint (CORE_ADDR addr, bfd_byte *save)
remote_rdp_remove_breakpoint (struct bp_target_info *bp_tgt)
{
CORE_ADDR addr = bp_tgt->placed_address;
int res;
if (ds.rdi_level > 0)
{
send_rdp ("b-p-S-B",
RDP_CLEAR_BREAK,
save, 4,
bp_tgt->shadow_contents, 4,
&res);
}
else
@ -1108,12 +1111,12 @@ rdp_step (void)
}
else
{
char handle[4];
void *b;
CORE_ADDR pc = read_register (ARM_PC_REGNUM);
pc = arm_get_next_pc (pc);
remote_rdp_insert_breakpoint (pc, handle);
b = deprecated_insert_raw_breakpoint (pc);
rdp_execute ();
remote_rdp_remove_breakpoint (pc, handle);
deprecated_remove_raw_breakpoint (b);
}
}

14
gdb/remote-sds.c
View File

@ -99,10 +99,6 @@ static void interrupt_query (void);
static int read_frame (char *);
static int sds_insert_breakpoint (CORE_ADDR, char *);
static int sds_remove_breakpoint (CORE_ADDR, char *);
static void init_sds_ops (void);
static void sds_command (char *args, int from_tty);
@ -1004,8 +1000,9 @@ sds_load (char *filename, int from_tty)
replaced instruction back to the debugger. */
static int
sds_insert_breakpoint (CORE_ADDR addr, char *contents_cache)
sds_insert_breakpoint (struct bp_target_info *bp_tgt)
{
CORE_ADDR addr = bp_tgt->placed_address;
int i, retlen;
unsigned char *p, buf[PBUFSIZ];
@ -1020,14 +1017,15 @@ sds_insert_breakpoint (CORE_ADDR addr, char *contents_cache)
retlen = sds_send (buf, p - buf);
for (i = 0; i < 4; ++i)
contents_cache[i] = buf[i + 2];
bp_tgt->shadow_contents[i] = buf[i + 2];
return 0;
}
static int
sds_remove_breakpoint (CORE_ADDR addr, char *contents_cache)
sds_remove_breakpoint (struct bp_target_info *bp_tgt)
{
CORE_ADDR addr = bp_tgt->placed_address;
int i, retlen;
unsigned char *p, buf[PBUFSIZ];
@ -1039,7 +1037,7 @@ sds_remove_breakpoint (CORE_ADDR addr, char *contents_cache)
*p++ = (int) (addr >> 8) & 0xff;
*p++ = (int) (addr) & 0xff;
for (i = 0; i < 4; ++i)
*p++ = contents_cache[i];
*p++ = bp_tgt->shadow_contents[i];
retlen = sds_send (buf, p - buf);

16
gdb/remote-sim.c
View File

@ -805,18 +805,6 @@ gdbsim_mourn_inferior (void)
generic_mourn_inferior ();
}
static int
gdbsim_insert_breakpoint (CORE_ADDR addr, bfd_byte *contents_cache)
{
return memory_insert_breakpoint (addr, contents_cache);
}
static int
gdbsim_remove_breakpoint (CORE_ADDR addr, bfd_byte *contents_cache)
{
return memory_remove_breakpoint (addr, contents_cache);
}
/* Pass the command argument through to the simulator verbatim. The
simulator must do any command interpretation work. */
@ -866,8 +854,8 @@ init_gdbsim_ops (void)
gdbsim_ops.to_prepare_to_store = gdbsim_prepare_to_store;
gdbsim_ops.deprecated_xfer_memory = gdbsim_xfer_inferior_memory;
gdbsim_ops.to_files_info = gdbsim_files_info;
gdbsim_ops.to_insert_breakpoint = gdbsim_insert_breakpoint;
gdbsim_ops.to_remove_breakpoint = gdbsim_remove_breakpoint;
gdbsim_ops.to_insert_breakpoint = memory_insert_breakpoint;
gdbsim_ops.to_remove_breakpoint = memory_remove_breakpoint;
gdbsim_ops.to_kill = gdbsim_kill;
gdbsim_ops.to_load = gdbsim_load;
gdbsim_ops.to_create_inferior = gdbsim_create_inferior;

11
gdb/remote-st.c
View File

@ -599,20 +599,16 @@ static CORE_ADDR breakaddr[MAX_STDEBUG_BREAKPOINTS] =
{0};
static int
st2000_insert_breakpoint (CORE_ADDR addr, char *shadow)
st2000_insert_breakpoint (struct bp_target_info *bp_tgt)
{
CORE_ADDR addr = bp_tgt->placed_address;
int i;
CORE_ADDR bp_addr = addr;
int bp_size = 0;
BREAKPOINT_FROM_PC (&bp_addr, &bp_size);
for (i = 0; i <= MAX_STDEBUG_BREAKPOINTS; i++)
if (breakaddr[i] == 0)
{
breakaddr[i] = addr;
st2000_read_inferior_memory (bp_addr, shadow, bp_size);
printf_stdebug ("BR %x H\r", addr);
expect_prompt (1);
return 0;
@ -623,8 +619,9 @@ st2000_insert_breakpoint (CORE_ADDR addr, char *shadow)
}
static int
st2000_remove_breakpoint (CORE_ADDR addr, char *shadow)
st2000_remove_breakpoint (struct bp_target_info *bp_tgt)
{
CORE_ADDR addr = bp_tgt->placed_address;
int i;
for (i = 0; i < MAX_STDEBUG_BREAKPOINTS; i++)

71
gdb/remote.c
View File

@ -136,10 +136,6 @@ static void skip_frame (void);
static long read_frame (char **buf_p, long *sizeof_buf);
static int remote_insert_breakpoint (CORE_ADDR, bfd_byte *);
static int remote_remove_breakpoint (CORE_ADDR, bfd_byte *);
static int hexnumlen (ULONGEST num);
static void init_remote_ops (void);
@ -4356,22 +4352,18 @@ static unsigned char little_break_insn[] = DEPRECATED_LITTLE_REMOTE_BREAKPOINT;
#endif /* DEPRECATED_REMOTE_BREAKPOINT */
/* Insert a breakpoint on targets that don't have any better
breakpoint support. We read the contents of the target location
and stash it, then overwrite it with a breakpoint instruction.
ADDR is the target location in the target machine. CONTENTS_CACHE
is a pointer to memory allocated for saving the target contents.
It is guaranteed by the caller to be long enough to save the number
of bytes returned by BREAKPOINT_FROM_PC. */
/* Insert a breakpoint. On targets that have software breakpoint
support, we ask the remote target to do the work; on targets
which don't, we insert a traditional memory breakpoint. */
static int
remote_insert_breakpoint (CORE_ADDR addr, bfd_byte *contents_cache)
remote_insert_breakpoint (struct bp_target_info *bp_tgt)
{
CORE_ADDR addr = bp_tgt->placed_address;
struct remote_state *rs = get_remote_state ();
#ifdef DEPRECATED_REMOTE_BREAKPOINT
int val;
#endif
int bp_size;
/* Try the "Z" s/w breakpoint packet if it is not already disabled.
If it succeeds, then set the support to PACKET_ENABLE. If it
@ -4382,13 +4374,13 @@ remote_insert_breakpoint (CORE_ADDR addr, bfd_byte *contents_cache)
{
char *p = rs->buf;
addr = remote_address_masked (addr);
*(p++) = 'Z';
*(p++) = '0';
*(p++) = ',';
p += hexnumstr (p, (ULONGEST) addr);
BREAKPOINT_FROM_PC (&addr, &bp_size);
sprintf (p, ",%d", bp_size);
BREAKPOINT_FROM_PC (&bp_tgt->placed_address, &bp_tgt->placed_size);
addr = (ULONGEST) remote_address_masked (bp_tgt->placed_address);
p += hexnumstr (p, addr);
sprintf (p, ",%d", bp_tgt->placed_size);
putpkt (rs->buf);
getpkt (&rs->buf, &rs->buf_size, 0);
@ -4405,7 +4397,8 @@ remote_insert_breakpoint (CORE_ADDR addr, bfd_byte *contents_cache)
}
#ifdef DEPRECATED_REMOTE_BREAKPOINT
val = target_read_memory (addr, contents_cache, sizeof big_break_insn);
bp_tgt->placed_size = bp_tgt->shadow_len = sizeof big_break_insn;
val = target_read_memory (addr, bp_tgt->shadow_contents, bp_tgt->shadow_len);
if (val == 0)
{
@ -4419,13 +4412,14 @@ remote_insert_breakpoint (CORE_ADDR addr, bfd_byte *contents_cache)
return val;
#else
return memory_insert_breakpoint (addr, contents_cache);
return memory_insert_breakpoint (bp_tgt);
#endif /* DEPRECATED_REMOTE_BREAKPOINT */
}
static int
remote_remove_breakpoint (CORE_ADDR addr, bfd_byte *contents_cache)
remote_remove_breakpoint (struct bp_target_info *bp_tgt)
{
CORE_ADDR addr = bp_tgt->placed_address;
struct remote_state *rs = get_remote_state ();
int bp_size;
@ -4437,10 +4431,9 @@ remote_remove_breakpoint (CORE_ADDR addr, bfd_byte *contents_cache)
*(p++) = '0';
*(p++) = ',';
addr = remote_address_masked (addr);
p += hexnumstr (p, (ULONGEST) addr);
BREAKPOINT_FROM_PC (&addr, &bp_size);
sprintf (p, ",%d", bp_size);
addr = (ULONGEST) remote_address_masked (bp_tgt->placed_address);
p += hexnumstr (p, addr);
sprintf (p, ",%d", bp_tgt->placed_size);
putpkt (rs->buf);
getpkt (&rs->buf, &rs->buf_size, 0);
@ -4449,9 +4442,10 @@ remote_remove_breakpoint (CORE_ADDR addr, bfd_byte *contents_cache)
}
#ifdef DEPRECATED_REMOTE_BREAKPOINT
return target_write_memory (addr, contents_cache, sizeof big_break_insn);
return target_write_memory (bp_tgt->placed_address, bp_tgt->shadow_contents,
bp_tgt->shadow_len);
#else
return memory_remove_breakpoint (addr, contents_cache);
return memory_remove_breakpoint (bp_tgt);
#endif /* DEPRECATED_REMOTE_BREAKPOINT */
}
@ -4595,16 +4589,16 @@ remote_stopped_data_address (struct target_ops *target, CORE_ADDR *addr_p)
static int
remote_insert_hw_breakpoint (CORE_ADDR addr, gdb_byte *shadow)
remote_insert_hw_breakpoint (struct bp_target_info *bp_tgt)
{
int len = 0;
CORE_ADDR addr;
struct remote_state *rs = get_remote_state ();
char *p = rs->buf;
/* The length field should be set to the size of a breakpoint
instruction. */
instruction, even though we aren't inserting one ourselves. */
BREAKPOINT_FROM_PC (&addr, &len);
BREAKPOINT_FROM_PC (&bp_tgt->placed_address, &bp_tgt->placed_size);
if (remote_protocol_packets[PACKET_Z1].support == PACKET_DISABLE)
error (_("Can't set hardware breakpoint without the '%s' (%s) packet."),
@ -4615,9 +4609,9 @@ remote_insert_hw_breakpoint (CORE_ADDR addr, gdb_byte *shadow)
*(p++) = '1';
*(p++) = ',';
addr = remote_address_masked (addr);
addr = remote_address_masked (bp_tgt->placed_address);
p += hexnumstr (p, (ULONGEST) addr);
sprintf (p, ",%x", len);
sprintf (p, ",%x", bp_tgt->placed_size);
putpkt (rs->buf);
getpkt (&rs->buf, &rs->buf_size, 0);
@ -4636,17 +4630,12 @@ remote_insert_hw_breakpoint (CORE_ADDR addr, gdb_byte *shadow)
static int
remote_remove_hw_breakpoint (CORE_ADDR addr, gdb_byte *shadow)
remote_remove_hw_breakpoint (struct bp_target_info *bp_tgt)
{
int len;
CORE_ADDR addr;
struct remote_state *rs = get_remote_state ();
char *p = rs->buf;
/* The length field should be set to the size of a breakpoint
instruction. */
BREAKPOINT_FROM_PC (&addr, &len);
if (remote_protocol_packets[PACKET_Z1].support == PACKET_DISABLE)
error (_("Can't clear hardware breakpoint without the '%s' (%s) packet."),
remote_protocol_packets[PACKET_Z1].name,
@ -4656,9 +4645,9 @@ remote_remove_hw_breakpoint (CORE_ADDR addr, gdb_byte *shadow)
*(p++) = '1';
*(p++) = ',';
addr = remote_address_masked (addr);
addr = remote_address_masked (bp_tgt->placed_address);
p += hexnumstr (p, (ULONGEST) addr);
sprintf (p, ",%x", len);
sprintf (p, ",%x", bp_tgt->placed_size);
putpkt (rs->buf);
getpkt (&rs->buf, &rs->buf_size, 0);

6
gdb/rs6000-nat.c
View File

@ -527,15 +527,15 @@ exec_one_dummy_insn (void)
{
#define DUMMY_INSN_ADDR (TEXT_SEGMENT_BASE)+0x200
char shadow_contents[BREAKPOINT_MAX]; /* Stash old bkpt addr contents */
int ret, status, pid;
CORE_ADDR prev_pc;
void *bp;
/* We plant one dummy breakpoint into DUMMY_INSN_ADDR address. We
assume that this address will never be executed again by the real
code. */
target_insert_breakpoint (DUMMY_INSN_ADDR, shadow_contents);
bp = deprecated_insert_raw_breakpoint (DUMMY_INSN_ADDR);
/* You might think this could be done with a single ptrace call, and
you'd be correct for just about every platform I've ever worked
@ -559,7 +559,7 @@ exec_one_dummy_insn (void)
while (pid != PIDGET (inferior_ptid));
write_pc (prev_pc);
target_remove_breakpoint (DUMMY_INSN_ADDR, shadow_contents);
deprecated_remove_raw_breakpoint (bp);
}
/* Fetch registers from the register section in core bfd. */

27
gdb/rs6000-tdep.c
View File

@ -110,17 +110,6 @@ struct reg
register number. */
};
/* Breakpoint shadows for the single step instructions will be kept here. */
static struct sstep_breaks
{
/* Address, or 0 if this is not in use. */
CORE_ADDR address;
/* Shadow contents. */
gdb_byte data[4];
}
stepBreaks[2];
/* Hook for determining the TOC address when calling functions in the
inferior under AIX. The initialization code in rs6000-nat.c sets
this hook to point to find_toc_address. */
@ -730,7 +719,6 @@ rs6000_software_single_step (enum target_signal signal,
if (insert_breakpoints_p)
{
loc = read_pc ();
insn = read_memory_integer (loc, 4);
@ -743,28 +731,17 @@ rs6000_software_single_step (enum target_signal signal,
if (breaks[1] == breaks[0])
breaks[1] = -1;
stepBreaks[1].address = 0;
for (ii = 0; ii < 2; ++ii)
{
/* ignore invalid breakpoint. */
if (breaks[ii] == -1)
continue;
target_insert_breakpoint (breaks[ii], stepBreaks[ii].data);
stepBreaks[ii].address = breaks[ii];
insert_single_step_breakpoint (breaks[ii]);
}
}
else
{
remove_single_step_breakpoints ();
/* remove step breakpoints. */
for (ii = 0; ii < 2; ++ii)
if (stepBreaks[ii].address != 0)
target_remove_breakpoint (stepBreaks[ii].address,
stepBreaks[ii].data);
}
errno = 0; /* FIXME, don't ignore errors! */
/* What errors? {read,write}_memory call error(). */
}

2
gdb/sol-thread.c
View File

@ -1524,7 +1524,7 @@ sol_make_note_section (bfd *obfd, int *note_size)
}
static int
ignore (CORE_ADDR addr, gdb_byte *contents)
ignore (struct bp_target_info *bp_tgt)
{
return 0;
}

18
gdb/solib-irix.c
View File

@ -227,10 +227,9 @@ fetch_lm_info (CORE_ADDR addr)
/* The symbol which starts off the list of shared libraries. */
#define DEBUG_BASE "__rld_obj_head"
char shadow_contents[BREAKPOINT_MAX]; /* Stash old bkpt addr contents */
static void *base_breakpoint;
static CORE_ADDR debug_base; /* Base of dynamic linker structures */
static CORE_ADDR breakpoint_addr; /* Address where end bkpt is set */
/*
@ -319,11 +318,13 @@ disable_break (void)
/* Note that breakpoint address and original contents are in our address
space, so we just need to write the original contents back. */
if (memory_remove_breakpoint (breakpoint_addr, shadow_contents) != 0)
if (deprecated_remove_raw_breakpoint (base_breakpoint) != 0)
{
status = 0;
}
base_breakpoint = NULL;
/* Note that it is possible that we have stopped at a location that
is different from the location where we inserted our breakpoint.
On mips-irix, we can actually land in __dbx_init(), so we should
@ -352,12 +353,13 @@ disable_break (void)
static int
enable_break (void)
{
if (symfile_objfile != NULL
&& target_insert_breakpoint (entry_point_address (),
shadow_contents) == 0)
if (symfile_objfile != NULL)
{
breakpoint_addr = entry_point_address ();
return 1;
base_breakpoint
= deprecated_insert_raw_breakpoint (entry_point_address ());
if (base_breakpoint != NULL)
return 1;
}
return 0;

15
gdb/sparc-tdep.c
View File

@ -1136,8 +1136,7 @@ sparc_software_single_step (enum target_signal sig, int insert_breakpoints_p)
{
struct gdbarch *arch = current_gdbarch;
struct gdbarch_tdep *tdep = gdbarch_tdep (arch);
static CORE_ADDR npc, nnpc;
static gdb_byte npc_save[4], nnpc_save[4];
CORE_ADDR npc, nnpc;
if (insert_breakpoints_p)
{
@ -1149,9 +1148,10 @@ sparc_software_single_step (enum target_signal sig, int insert_breakpoints_p)
/* Analyze the instruction at PC. */
nnpc = sparc_analyze_control_transfer (arch, pc, &npc);
if (npc != 0)
target_insert_breakpoint (npc, npc_save);
insert_single_step_breakpoint (npc);
if (nnpc != 0)
target_insert_breakpoint (nnpc, nnpc_save);
insert_single_step_breakpoint (nnpc);
/* Assert that we have set at least one breakpoint, and that
they're not set at the same spot - unless we're going
@ -1160,12 +1160,7 @@ sparc_software_single_step (enum target_signal sig, int insert_breakpoints_p)
gdb_assert (nnpc != npc || orig_npc == 0);
}
else
{
if (npc != 0)
target_remove_breakpoint (npc, npc_save);
if (nnpc != 0)
target_remove_breakpoint (nnpc, nnpc_save);
}
remove_single_step_breakpoints ();
}
static void

36
gdb/target.c
View File

@ -111,15 +111,15 @@ static void debug_to_prepare_to_store (void);
static void debug_to_files_info (struct target_ops *);
static int debug_to_insert_breakpoint (CORE_ADDR, gdb_byte *);
static int debug_to_insert_breakpoint (struct bp_target_info *);
static int debug_to_remove_breakpoint (CORE_ADDR, gdb_byte *);
static int debug_to_remove_breakpoint (struct bp_target_info *);
static int debug_to_can_use_hw_breakpoint (int, int, int);
static int debug_to_insert_hw_breakpoint (CORE_ADDR, gdb_byte *);
static int debug_to_insert_hw_breakpoint (struct bp_target_info *);
static int debug_to_remove_hw_breakpoint (CORE_ADDR, gdb_byte *);
static int debug_to_remove_hw_breakpoint (struct bp_target_info *);
static int debug_to_insert_watchpoint (CORE_ADDR, int, int);
@ -515,10 +515,10 @@ update_current_target (void)
(int (*) (int, int, int))
return_zero);
de_fault (to_insert_hw_breakpoint,
(int (*) (CORE_ADDR, gdb_byte *))
(int (*) (struct bp_target_info *))
return_minus_one);
de_fault (to_remove_hw_breakpoint,
(int (*) (CORE_ADDR, gdb_byte *))
(int (*) (struct bp_target_info *))
return_minus_one);
de_fault (to_insert_watchpoint,
(int (*) (CORE_ADDR, int, int))
@ -2075,29 +2075,29 @@ debug_to_files_info (struct target_ops *target)
}
static int
debug_to_insert_breakpoint (CORE_ADDR addr, gdb_byte *save)
debug_to_insert_breakpoint (struct bp_target_info *bp_tgt)
{
int retval;
retval = debug_target.to_insert_breakpoint (addr, save);
retval = debug_target.to_insert_breakpoint (bp_tgt);
fprintf_unfiltered (gdb_stdlog,
"target_insert_breakpoint (0x%lx, xxx) = %ld\n",
(unsigned long) addr,
(unsigned long) bp_tgt->placed_address,
(unsigned long) retval);
return retval;
}
static int
debug_to_remove_breakpoint (CORE_ADDR addr, gdb_byte *save)
debug_to_remove_breakpoint (struct bp_target_info *bp_tgt)
{
int retval;
retval = debug_target.to_remove_breakpoint (addr, save);
retval = debug_target.to_remove_breakpoint (bp_tgt);
fprintf_unfiltered (gdb_stdlog,
"target_remove_breakpoint (0x%lx, xxx) = %ld\n",
(unsigned long) addr,
(unsigned long) bp_tgt->placed_address,
(unsigned long) retval);
return retval;
}
@ -2161,29 +2161,29 @@ debug_to_stopped_data_address (struct target_ops *target, CORE_ADDR *addr)
}
static int
debug_to_insert_hw_breakpoint (CORE_ADDR addr, gdb_byte *save)
debug_to_insert_hw_breakpoint (struct bp_target_info *bp_tgt)
{
int retval;
retval = debug_target.to_insert_hw_breakpoint (addr, save);
retval = debug_target.to_insert_hw_breakpoint (bp_tgt);
fprintf_unfiltered (gdb_stdlog,
"target_insert_hw_breakpoint (0x%lx, xxx) = %ld\n",
(unsigned long) addr,
(unsigned long) bp_tgt->placed_address,
(unsigned long) retval);
return retval;
}
static int
debug_to_remove_hw_breakpoint (CORE_ADDR addr, gdb_byte *save)
debug_to_remove_hw_breakpoint (struct bp_target_info *bp_tgt)
{
int retval;
retval = debug_target.to_remove_hw_breakpoint (addr, save);
retval = debug_target.to_remove_hw_breakpoint (bp_tgt);
fprintf_unfiltered (gdb_stdlog,
"target_remove_hw_breakpoint (0x%lx, xxx) = %ld\n",
(unsigned long) addr,
(unsigned long) bp_tgt->placed_address,
(unsigned long) retval);
return retval;
}

46
gdb/target.h
View File

@ -30,6 +30,7 @@ struct objfile;
struct ui_file;
struct mem_attrib;
struct target_ops;
struct bp_target_info;
/* This include file defines the interface between the main part
of the debugger, and the part which is target-specific, or
@ -336,11 +337,11 @@ struct target_ops
struct target_ops *target);
void (*to_files_info) (struct target_ops *);
int (*to_insert_breakpoint) (CORE_ADDR, gdb_byte *);
int (*to_remove_breakpoint) (CORE_ADDR, gdb_byte *);
int (*to_insert_breakpoint) (struct bp_target_info *);
int (*to_remove_breakpoint) (struct bp_target_info *);
int (*to_can_use_hw_breakpoint) (int, int, int);
int (*to_insert_hw_breakpoint) (CORE_ADDR, gdb_byte *);
int (*to_remove_hw_breakpoint) (CORE_ADDR, gdb_byte *);
int (*to_insert_hw_breakpoint) (struct bp_target_info *);
int (*to_remove_hw_breakpoint) (struct bp_target_info *);
int (*to_remove_watchpoint) (CORE_ADDR, int, int);
int (*to_insert_watchpoint) (CORE_ADDR, int, int);
int (*to_stopped_by_watchpoint) (void);
@ -612,22 +613,17 @@ extern void print_section_info (struct target_ops *, bfd *);
#define target_files_info() \
(*current_target.to_files_info) (&current_target)
/* Insert a breakpoint at address ADDR in the target machine. SAVE is
a pointer to memory allocated for saving the target contents. It
is guaranteed by the caller to be long enough to save the number of
breakpoint bytes indicated by BREAKPOINT_FROM_PC. Result is 0 for
success, or an errno value. */
/* Insert a breakpoint at address BP_TGT->placed_address in the target
machine. Result is 0 for success, or an errno value. */
#define target_insert_breakpoint(addr, save) \
(*current_target.to_insert_breakpoint) (addr, save)
#define target_insert_breakpoint(bp_tgt) \
(*current_target.to_insert_breakpoint) (bp_tgt)
/* Remove a breakpoint at address ADDR in the target machine.
SAVE is a pointer to the same save area
that was previously passed to target_insert_breakpoint.
Result is 0 for success, or an errno value. */
/* Remove a breakpoint at address BP_TGT->placed_address in the target
machine. Result is 0 for success, or an errno value. */
#define target_remove_breakpoint(addr, save) \
(*current_target.to_remove_breakpoint) (addr, save)
#define target_remove_breakpoint(bp_tgt) \
(*current_target.to_remove_breakpoint) (bp_tgt)
/* Initialize the terminal settings we record for the inferior,
before we actually run the inferior. */
@ -1057,11 +1053,11 @@ extern void (*deprecated_target_new_objfile_hook) (struct objfile *);
#endif
#ifndef target_insert_hw_breakpoint
#define target_insert_hw_breakpoint(addr, save) \
(*current_target.to_insert_hw_breakpoint) (addr, save)
#define target_insert_hw_breakpoint(bp_tgt) \
(*current_target.to_insert_hw_breakpoint) (bp_tgt)
#define target_remove_hw_breakpoint(addr, save) \
(*current_target.to_remove_hw_breakpoint) (addr, save)
#define target_remove_hw_breakpoint(bp_tgt) \
(*current_target.to_remove_hw_breakpoint) (bp_tgt)
#endif
extern int target_stopped_data_address_p (struct target_ops *);
@ -1142,13 +1138,13 @@ struct section_table *target_section_by_addr (struct target_ops *target,
/* From mem-break.c */
extern int memory_remove_breakpoint (CORE_ADDR, gdb_byte *);
extern int memory_remove_breakpoint (struct bp_target_info *);
extern int memory_insert_breakpoint (CORE_ADDR, gdb_byte *);
extern int memory_insert_breakpoint (struct bp_target_info *);
extern int default_memory_remove_breakpoint (CORE_ADDR, gdb_byte *);
extern int default_memory_remove_breakpoint (struct bp_target_info *);
extern int default_memory_insert_breakpoint (CORE_ADDR, gdb_byte *);
extern int default_memory_insert_breakpoint (struct bp_target_info *);
/* From target.c */

16
gdb/wince.c
View File

@ -146,7 +146,6 @@ typedef struct thread_info_struct
int suspend_count;
int stepped; /* True if stepped. */
CORE_ADDR step_pc;
unsigned long step_prev;
CONTEXT context;
}
thread_info;
@ -834,7 +833,7 @@ undoSStep (thread_info * th)
{
if (th->stepped)
{
memory_remove_breakpoint (th->step_pc, (void *) &th->step_prev);
remove_single_step_breakpoints ();
th->stepped = 0;
}
}
@ -857,8 +856,7 @@ wince_software_single_step (enum target_signal ignore,
th->stepped = 1;
pc = read_register (PC_REGNUM);
th->step_pc = mips_next_pc (pc);
th->step_prev = 0;
memory_insert_breakpoint (th->step_pc, (void *) &th->step_prev);
insert_single_step_breakpoint (th->step_pc);
return;
}
#elif SHx
@ -971,7 +969,7 @@ undoSStep (thread_info * th)
{
if (th->stepped)
{
memory_remove_breakpoint (th->step_pc, (void *) &th->step_prev);
remove_single_step_breakpoints ();
th->stepped = 0;
}
return;
@ -996,8 +994,7 @@ wince_software_single_step (enum target_signal ignore,
th->stepped = 1;
th->step_pc = sh_get_next_pc (&th->context);
th->step_prev = 0;
memory_insert_breakpoint (th->step_pc, (void *) &th->step_prev);
insert_single_step_breakpoint (th->step_pc);
return;
}
#elif defined (ARM)
@ -1024,7 +1021,7 @@ undoSStep (thread_info * th)
{
if (th->stepped)
{
memory_remove_breakpoint (th->step_pc, (void *) &th->step_prev);
remove_single_step_breakpoints ();
th->stepped = 0;
}
}
@ -1047,8 +1044,7 @@ wince_software_single_step (enum target_signal ignore,
th->stepped = 1;
pc = read_register (PC_REGNUM);
th->step_pc = arm_get_next_pc (pc);
th->step_prev = 0;
memory_insert_breakpoint (th->step_pc, (void *) &th->step_prev);
insert_single_step_breakpoint (th->step_pc);
return;
}
#endif