From: Yao Qi <qiyaoltc@gmail.com>
To: gdb-patches@sourceware.org
Subject: [PATCH 03/13] gdbarch_breakpoint_from_pc doesn't return NULL
Date: Wed, 31 Aug 2016 15:06:00 -0000 [thread overview]
Message-ID: <1472655965-12212-4-git-send-email-yao.qi@linaro.org> (raw)
In-Reply-To: <1472655965-12212-1-git-send-email-yao.qi@linaro.org>
gdbarch_breakpoint_from_pc doesn't return NULL except for
ia64_breakpoint_from_pc, and we checked its return value in three
places. In microblaze_linux_memory_remove_breakpoint and
ppc_linux_memory_remove_breakpoint, gdbarch_breakpoint_from_pc never
returns NULL, so we can remove the NULL checking. In
default_memory_insert_breakpoint, gdbarch_breakpoint_from_pc can't
returns NULL too because ia64 defines its own memory_insert_breakpoint.
gdb:
2016-08-30 Yao Qi <yao.qi@linaro.org>
* mem-break.c (default_memory_insert_breakpoint): Don't check
'bp' against NULL.
* microblaze-linux-tdep.c (microblaze_linux_memory_remove_breakpoint):
Likewise.
* ppc-linux-tdep.c (ppc_linux_memory_remove_breakpoint): Likewise.
---
gdb/mem-break.c | 2 --
gdb/microblaze-linux-tdep.c | 2 --
gdb/ppc-linux-tdep.c | 2 --
3 files changed, 6 deletions(-)
diff --git a/gdb/mem-break.c b/gdb/mem-break.c
index 803f62b..cc8145c 100644
--- a/gdb/mem-break.c
+++ b/gdb/mem-break.c
@@ -45,8 +45,6 @@ default_memory_insert_breakpoint (struct gdbarch *gdbarch,
/* Determine appropriate breakpoint contents and size for this address. */
bp = gdbarch_breakpoint_from_pc (gdbarch, &addr, &bplen);
- if (bp == NULL)
- error (_("Software breakpoints not implemented for this target."));
bp_tgt->placed_address = addr;
bp_tgt->placed_size = bplen;
diff --git a/gdb/microblaze-linux-tdep.c b/gdb/microblaze-linux-tdep.c
index 18ddfea..22e5959 100644
--- a/gdb/microblaze-linux-tdep.c
+++ b/gdb/microblaze-linux-tdep.c
@@ -49,8 +49,6 @@ microblaze_linux_memory_remove_breakpoint (struct gdbarch *gdbarch,
/* Determine appropriate breakpoint contents and size for this address. */
bp = gdbarch_breakpoint_from_pc (gdbarch, &addr, &bplen);
- if (bp == NULL)
- error (_("Software breakpoints not implemented for this target."));
val = target_read_memory (addr, old_contents, bplen);
diff --git a/gdb/ppc-linux-tdep.c b/gdb/ppc-linux-tdep.c
index cde4f2e..5ce58d8 100644
--- a/gdb/ppc-linux-tdep.c
+++ b/gdb/ppc-linux-tdep.c
@@ -222,8 +222,6 @@ ppc_linux_memory_remove_breakpoint (struct gdbarch *gdbarch,
/* Determine appropriate breakpoint contents and size for this address. */
bp = gdbarch_breakpoint_from_pc (gdbarch, &addr, &bplen);
- if (bp == NULL)
- error (_("Software breakpoints not implemented for this target."));
/* Make sure we see the memory breakpoints. */
cleanup = make_show_memory_breakpoints_cleanup (1);
--
1.9.1
next prev parent reply other threads:[~2016-08-31 15:06 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-08-31 15:06 [PATCH 00/13] Split brekapoint_from_pc to breakpoint_kind_from_pc and sw_breakpoint_from_kind Yao Qi
2016-08-31 15:06 ` [PATCH 06/13] Add enum for mips breakpoint kinds Yao Qi
2016-10-27 14:54 ` Pedro Alves
2016-10-28 19:39 ` Maciej W. Rozycki
2016-08-31 15:06 ` [PATCH 05/13] Share enum arm_breakpoint_kinds Yao Qi
2016-08-31 15:06 ` [PATCH 02/13] Rename 'arch' by 'gdbarch' in m32c_gdbarch_init Yao Qi
2016-08-31 15:06 ` [PATCH 13/13] Remove arm_override_mode Yao Qi
2016-10-27 14:56 ` Pedro Alves
2016-08-31 15:06 ` [PATCH 07/13] Split brekapoint_from_pc to breakpoint_kind_from_pc and sw_breakpoint_from_kind Yao Qi
2016-10-10 10:05 ` Yao Qi
2016-10-27 14:55 ` Pedro Alves
2016-10-28 19:44 ` Maciej W. Rozycki
2016-08-31 15:06 ` Yao Qi [this message]
2016-09-28 15:23 ` [PATCH 03/13] gdbarch_breakpoint_from_pc doesn't return NULL Michael Eager
2016-08-31 15:06 ` [PATCH 11/13] Add default_breakpoint_from_pc Yao Qi
2016-08-31 15:06 ` [PATCH 08/13] New gdbarch methods breakpoint_kind_from_pc and sw_breakpoint_from_kind Yao Qi
2016-08-31 15:06 ` [PATCH 12/13] Determine the kind of single step breakpoint Yao Qi
2016-10-27 14:55 ` Pedro Alves
2016-08-31 15:06 ` [PATCH 01/13] Remove v850_dbtrap_breakpoint_from_pc Yao Qi
2016-08-31 15:06 ` [PATCH 04/13] GDBARCH_BREAKPOINT_MANIPULATION and SET_GDBARCH_BREAKPOINT_MANIPULATION Yao Qi
2016-08-31 15:06 ` [PATCH 09/13] Rename placed_size to kind Yao Qi
2016-08-31 15:06 ` [PATCH 10/13] Remove gdbarch_remote_breakpoint_from_pc Yao Qi
2016-10-27 14:55 ` Pedro Alves
2016-10-10 10:17 ` [PATCH 00/13] Split brekapoint_from_pc to breakpoint_kind_from_pc and sw_breakpoint_from_kind Yao Qi
2016-10-26 15:43 ` Yao Qi
2016-10-27 14:58 ` Pedro Alves
2016-10-27 15:41 ` Yao Qi
2016-10-27 17:55 ` Pedro Alves
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