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commit 49ecef2a7da2ee9df4ae675f99b70518fbf1bb23
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Author: Andrew Pinski <apinski@cavium.com>
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Date: Sat Jul 23 09:56:44 2016 -0700
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Fix ARMv8.1/v8.2 for hw watchpoint and breakpoint
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The problem here is ARMv8.1 (and ARMv8.2) define a
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different debug version than ARMv8 (7 and 8 respectively).
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This fixes hw watchpoints and breakpoints by checking
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for those debug versions too.
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Committed as obvious after a test on aarch64-linux-gnu
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(on a ThunderX machine which has ARMv8.1 support enabled).
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ChangeLog:
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* nat/aarch64-linux-hw-point.c
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(aarch64_linux_get_debug_reg_capacity): Handle
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ARMv8.1 and ARMv8.2 debug versions.
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* nat/aarch64-linux-hw-point.h
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(AARCH64_DEBUG_ARCH_V8_1): New define.
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(AARCH64_DEBUG_ARCH_V8_2): New define.
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Signed-off-by: Andrew Pinski <apinski@cavium.com>
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### a/gdb/ChangeLog
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### b/gdb/ChangeLog
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## -1,3 +1,12 @@
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+2016-07-23 Andrew Pinski <apinski@cavium.com>
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+
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+ * nat/aarch64-linux-hw-point.c
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+ (aarch64_linux_get_debug_reg_capacity): Handle
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+ ARMv8.1 and ARMv8.2 debug versions.
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+ * nat/aarch64-linux-hw-point.h
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+ (AARCH64_DEBUG_ARCH_V8_1): New define.
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+ (AARCH64_DEBUG_ARCH_V8_2): New define.
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+
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2016-06-30 Руслан Ижбулатов <lrn1986@gmail.com>
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PR gdb/14529
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Index: gdb-7.6.1/gdb/aarch64-linux-nat.c
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===================================================================
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--- gdb-7.6.1.orig/gdb/aarch64-linux-nat.c 2016-08-03 23:00:09.338705164 +0200
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+++ gdb-7.6.1/gdb/aarch64-linux-nat.c 2016-08-03 23:00:55.016092435 +0200
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@@ -110,6 +110,8 @@
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/* Macro for the expected version of the ARMv8-A debug architecture. */
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#define AARCH64_DEBUG_ARCH_V8 0x6
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+#define AARCH64_DEBUG_ARCH_V8_1 0x7
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+#define AARCH64_DEBUG_ARCH_V8_2 0x8
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/* Number of hardware breakpoints/watchpoints the target supports.
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They are initialized with values obtained via the ptrace calls
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@@ -789,7 +791,9 @@
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/* Get hardware watchpoint register info. */
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if (ptrace (PTRACE_GETREGSET, tid, NT_ARM_HW_WATCH, &iov) == 0
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- && AARCH64_DEBUG_ARCH (dreg_state.dbg_info) == AARCH64_DEBUG_ARCH_V8)
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+ && (AARCH64_DEBUG_ARCH (dreg_state.dbg_info) == AARCH64_DEBUG_ARCH_V8
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+ || AARCH64_DEBUG_ARCH (dreg_state.dbg_info) == AARCH64_DEBUG_ARCH_V8_1
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+ || AARCH64_DEBUG_ARCH (dreg_state.dbg_info) == AARCH64_DEBUG_ARCH_V8_2))
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{
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aarch64_num_wp_regs = AARCH64_DEBUG_NUM_SLOTS (dreg_state.dbg_info);
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if (aarch64_num_wp_regs > AARCH64_HWP_MAX_NUM)
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@@ -809,7 +813,9 @@
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/* Get hardware breakpoint register info. */
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if (ptrace (PTRACE_GETREGSET, tid, NT_ARM_HW_BREAK, &iov) == 0
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- && AARCH64_DEBUG_ARCH (dreg_state.dbg_info) == AARCH64_DEBUG_ARCH_V8)
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+ && (AARCH64_DEBUG_ARCH (dreg_state.dbg_info) == AARCH64_DEBUG_ARCH_V8
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+ || AARCH64_DEBUG_ARCH (dreg_state.dbg_info) == AARCH64_DEBUG_ARCH_V8_1
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+ || AARCH64_DEBUG_ARCH (dreg_state.dbg_info) == AARCH64_DEBUG_ARCH_V8_2))
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{
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aarch64_num_bp_regs = AARCH64_DEBUG_NUM_SLOTS (dreg_state.dbg_info);
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if (aarch64_num_bp_regs > AARCH64_HBP_MAX_NUM)
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Index: gdb-7.6.1/gdb/gdbserver/linux-aarch64-low.c
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===================================================================
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--- gdb-7.6.1.orig/gdb/gdbserver/linux-aarch64-low.c 2016-08-03 23:00:08.117694812 +0200
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+++ gdb-7.6.1/gdb/gdbserver/linux-aarch64-low.c 2016-08-03 23:02:00.471647393 +0200
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@@ -1187,6 +1187,8 @@
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#define AARCH64_DEBUG_NUM_SLOTS(x) ((x) & 0xff)
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#define AARCH64_DEBUG_ARCH(x) (((x) >> 8) & 0xff)
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#define AARCH64_DEBUG_ARCH_V8 0x6
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+#define AARCH64_DEBUG_ARCH_V8_1 0x7
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+#define AARCH64_DEBUG_ARCH_V8_2 0x8
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static void
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aarch64_arch_setup (void)
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@@ -1203,7 +1205,9 @@
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/* Get hardware watchpoint register info. */
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if (ptrace (PTRACE_GETREGSET, pid, NT_ARM_HW_WATCH, &iov) == 0
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- && AARCH64_DEBUG_ARCH (dreg_state.dbg_info) == AARCH64_DEBUG_ARCH_V8)
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+ && (AARCH64_DEBUG_ARCH (dreg_state.dbg_info) == AARCH64_DEBUG_ARCH_V8
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+ || AARCH64_DEBUG_ARCH (dreg_state.dbg_info) == AARCH64_DEBUG_ARCH_V8_1
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+ || AARCH64_DEBUG_ARCH (dreg_state.dbg_info) == AARCH64_DEBUG_ARCH_V8_2))
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{
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aarch64_num_wp_regs = AARCH64_DEBUG_NUM_SLOTS (dreg_state.dbg_info);
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if (aarch64_num_wp_regs > AARCH64_HWP_MAX_NUM)
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@@ -1223,7 +1227,9 @@
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/* Get hardware breakpoint register info. */
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if (ptrace (PTRACE_GETREGSET, pid, NT_ARM_HW_BREAK, &iov) == 0
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- && AARCH64_DEBUG_ARCH (dreg_state.dbg_info) == AARCH64_DEBUG_ARCH_V8)
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+ && (AARCH64_DEBUG_ARCH (dreg_state.dbg_info) == AARCH64_DEBUG_ARCH_V8
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+ || AARCH64_DEBUG_ARCH (dreg_state.dbg_info) == AARCH64_DEBUG_ARCH_V8_1
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+ || AARCH64_DEBUG_ARCH (dreg_state.dbg_info) == AARCH64_DEBUG_ARCH_V8_2))
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{
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aarch64_num_bp_regs = AARCH64_DEBUG_NUM_SLOTS (dreg_state.dbg_info);
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if (aarch64_num_bp_regs > AARCH64_HBP_MAX_NUM)
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