From: Kevin Buettner <kevinb@redhat.com>
To: gdb-patches@sourceware.org
Subject: [PATCH 8/8] Implement unconditional_branch_address method for rx
Date: Wed, 19 Aug 2015 07:15:00 -0000 [thread overview]
Message-ID: <20150819001552.72ad9ff6@pinnacle.lan> (raw)
In-Reply-To: <20150818235334.1afb0c85@pinnacle.lan>
Implement unconditional_branch_address method for rx.
gdb/ChangeLog:
* rx-tdep.c (rx_unconditional_branch_address): New function.
(rx_gdbarch_init): Register rx_unconditional_branch_address.
---
gdb/rx-tdep.c | 36 ++++++++++++++++++++++++++++++++++++
1 file changed, 36 insertions(+)
diff --git a/gdb/rx-tdep.c b/gdb/rx-tdep.c
index 0bd91ff..f7ba2fb 100644
--- a/gdb/rx-tdep.c
+++ b/gdb/rx-tdep.c
@@ -1015,6 +1015,38 @@ rx_dwarf_reg_to_regnum (struct gdbarch *gdbarch, int reg)
reg);
}
+/* Implement the unconditional_branch_address gdbarch method. */
+
+static CORE_ADDR
+rx_unconditional_branch_address (struct gdbarch *gdbarch, CORE_ADDR pc)
+{
+ int bytes_read;
+ RX_Opcode_Decoded opc;
+ struct rx_get_opcode_byte_handle opcode_handle;
+
+ opcode_handle.pc = pc;
+
+ bytes_read = rx_decode_opcode (pc, &opc, rx_get_opcode_byte,
+ &opcode_handle);
+
+ if (bytes_read > 0
+ && (opc.id == RXO_branch || opc.id == RXO_branchrel)
+ && (opc.op[1].type == RX_Operand_None
+ || (opc.op[1].type == RX_Operand_Condition
+ && opc.op[1].reg == RXC_always))
+ && opc.op[0].type == RX_Operand_Immediate)
+ {
+ LONGEST l = opc.op[0].addend;
+
+ if (opc.id == RXO_branch)
+ return (CORE_ADDR) l;
+ else
+ return pc + l;
+ }
+
+ return 0;
+}
+
/* Allocate and initialize a gdbarch object. */
static struct gdbarch *
rx_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
@@ -1146,6 +1178,10 @@ rx_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
/* Virtual tables. */
set_gdbarch_vbit_in_delta (gdbarch, 1);
+ /* Unconditional Branch. */
+ set_gdbarch_unconditional_branch_address (gdbarch,
+ rx_unconditional_branch_address);
+
return gdbarch;
}
next prev parent reply other threads:[~2015-08-19 7:15 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-08-19 6:53 [PATCH 0/8] Break at each iteration for breakpoints placed on a while statement Kevin Buettner
2015-08-19 6:58 ` [PATCH 1/8] Add new test, gdb.base/loop-break.exp Kevin Buettner
2015-08-25 12:10 ` Pedro Alves
2015-09-18 0:50 ` Kevin Buettner
2016-02-01 20:00 ` Kevin Buettner
2016-02-15 16:51 ` Kevin Buettner
2016-02-29 16:17 ` Kevin Buettner
2015-09-22 0:11 ` Kevin Buettner
2015-08-19 7:00 ` [PATCH 2/8] Add new gdbarch method, unconditional_branch_address Kevin Buettner
2015-08-25 12:13 ` Pedro Alves
2015-09-18 1:14 ` Kevin Buettner
2015-09-18 12:02 ` Andrew Burgess
2015-09-18 12:06 ` Andrew Burgess
2015-09-18 12:26 ` Kevin Buettner
2015-09-18 12:24 ` Kevin Buettner
2015-09-22 16:09 ` Yao Qi
2015-09-22 18:03 ` Kevin Buettner
2015-08-19 7:03 ` [PATCH 3/8] Break at each iteration for breakpoints placed on a while statement Kevin Buettner
2015-08-25 12:10 ` Pedro Alves
2015-09-18 1:57 ` Kevin Buettner
2015-09-30 12:17 ` Pedro Alves
2015-10-01 1:13 ` Kevin Buettner
2015-10-01 4:09 ` Doug Evans
2015-08-19 7:06 ` [PATCH 4/8] Implement unconditional_branch_address method for x86-64 and i386 Kevin Buettner
2015-09-18 2:03 ` Kevin Buettner
2015-08-19 7:08 ` [PATCH 5/8] Implement unconditional_branch_address method for arm and thumb Kevin Buettner
2015-08-19 7:11 ` [PATCH 6/8] Implement unconditional_branch_address method for powerpc / rs6000 Kevin Buettner
2015-08-19 7:13 ` [PATCH 7/8] Implement unconditional_branch_address method for rl78 Kevin Buettner
2015-08-19 7:15 ` Kevin Buettner [this message]
2016-01-18 16:48 ` [PATCH 0/8] Break at each iteration for breakpoints placed on a while statement Kevin Buettner
2016-04-04 15:56 ` Yao Qi
2016-04-14 16:31 ` Luis Machado
2016-04-15 11:59 ` Yao Qi
2016-04-15 19:48 ` Kevin Buettner
2016-04-15 22:34 ` Pedro Alves
2016-04-19 16:24 ` Kevin Buettner
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