Signed-off-by: Andreas Färber <afaerber@xxxxxxx>
---
cpu-exec.c | 5 +++--
exec.c | 33 ++++++++++++++++++++-------------
gdbstub.c | 8 ++++----
include/exec/cpu-defs.h | 10 ----------
include/qom/cpu.h | 10 ++++++++++
linux-user/main.c | 5 +++--
target-i386/cpu.h | 2 +-
target-i386/helper.c | 7 ++++---
target-i386/kvm.c | 8 ++++----
target-lm32/cpu.h | 2 +-
target-lm32/helper.c | 7 ++++---
target-xtensa/cpu.h | 2 +-
target-xtensa/helper.c | 8 +++++---
13 files changed, 60 insertions(+), 47 deletions(-)
diff --git a/cpu-exec.c b/cpu-exec.c
index 798dc08..d7c21d3 100644
--- a/cpu-exec.c
+++ b/cpu-exec.c
@@ -200,10 +200,11 @@ void cpu_set_debug_excp_handler(CPUDebugExcpHandler *handler)
static void cpu_handle_debug_exception(CPUArchState *env)
{
+ CPUState *cpu = ENV_GET_CPU(env);
CPUWatchpoint *wp;
- if (!env->watchpoint_hit) {
- QTAILQ_FOREACH(wp, &env->watchpoints, entry) {
+ if (!cpu->watchpoint_hit) {
+ QTAILQ_FOREACH(wp, &cpu->watchpoints, entry) {
wp->flags &= ~BP_WATCHPOINT_HIT;
}
}
diff --git a/exec.c b/exec.c
index 9b02c6a..cf4a0ef 100644
--- a/exec.c
+++ b/exec.c
@@ -485,7 +485,7 @@ void cpu_exec_init(CPUArchState *env)
cpu->cpu_index = cpu_index;
cpu->numa_node = 0;
QTAILQ_INIT(&env->breakpoints);
- QTAILQ_INIT(&env->watchpoints);
+ QTAILQ_INIT(&cpu->watchpoints);
#ifndef CONFIG_USER_ONLY
cpu->as = &address_space_memory;
cpu->thread_id = qemu_get_thread_id();
@@ -542,6 +542,7 @@ int cpu_watchpoint_insert(CPUArchState *env, target_ulong addr, target_ulong len
int cpu_watchpoint_insert(CPUArchState *env, target_ulong addr, target_ulong len,
int flags, CPUWatchpoint **watchpoint)
{
+ CPUState *cpu = ENV_GET_CPU(env);
target_ulong len_mask = ~(len - 1);
CPUWatchpoint *wp;
@@ -559,10 +560,11 @@ int cpu_watchpoint_insert(CPUArchState *env, target_ulong addr, target_ulong len
wp->flags = flags;
/* keep all GDB-injected watchpoints in front */
- if (flags & BP_GDB)
- QTAILQ_INSERT_HEAD(&env->watchpoints, wp, entry);
- else
- QTAILQ_INSERT_TAIL(&env->watchpoints, wp, entry);
+ if (flags & BP_GDB) {
+ QTAILQ_INSERT_HEAD(&cpu->watchpoints, wp, entry);
+ } else {
+ QTAILQ_INSERT_TAIL(&cpu->watchpoints, wp, entry);
+ }
tlb_flush_page(env, addr);
@@ -575,10 +577,11 @@ int cpu_watchpoint_insert(CPUArchState *env, target_ulong addr, target_ulong len
int cpu_watchpoint_remove(CPUArchState *env, target_ulong addr, target_ulong len,
int flags)
{
+ CPUState *cpu = ENV_GET_CPU(env);
target_ulong len_mask = ~(len - 1);
CPUWatchpoint *wp;
- QTAILQ_FOREACH(wp, &env->watchpoints, entry) {
+ QTAILQ_FOREACH(wp, &cpu->watchpoints, entry) {
if (addr == wp->vaddr && len_mask == wp->len_mask
&& flags == (wp->flags & ~BP_WATCHPOINT_HIT)) {
cpu_watchpoint_remove_by_ref(env, wp);
@@ -591,7 +594,9 @@ int cpu_watchpoint_remove(CPUArchState *env, target_ulong addr, target_ulong len
/* Remove a specific watchpoint by reference. */
void cpu_watchpoint_remove_by_ref(CPUArchState *env, CPUWatchpoint *watchpoint)
{
- QTAILQ_REMOVE(&env->watchpoints, watchpoint, entry);
+ CPUState *cpu = ENV_GET_CPU(env);
+
+ QTAILQ_REMOVE(&cpu->watchpoints, watchpoint, entry);
tlb_flush_page(env, watchpoint->vaddr);
@@ -601,9 +606,10 @@ void cpu_watchpoint_remove_by_ref(CPUArchState *env, CPUWatchpoint *watchpoint)
/* Remove all matching watchpoints. */
void cpu_watchpoint_remove_all(CPUArchState *env, int mask)
{
+ CPUState *cpu = ENV_GET_CPU(env);
CPUWatchpoint *wp, *next;
- QTAILQ_FOREACH_SAFE(wp, &env->watchpoints, entry, next) {
+ QTAILQ_FOREACH_SAFE(wp, &cpu->watchpoints, entry, next) {
if (wp->flags & mask)
cpu_watchpoint_remove_by_ref(env, wp);
}
@@ -799,6 +805,7 @@ hwaddr memory_region_section_get_iotlb(CPUArchState *env,
int prot,
target_ulong *address)
{
+ CPUState *cpu = ENV_GET_CPU(env);
hwaddr iotlb;
CPUWatchpoint *wp;
@@ -818,7 +825,7 @@ hwaddr memory_region_section_get_iotlb(CPUArchState *env,
/* Make accesses to pages with watchpoints go via the
watchpoint trap routines. */
- QTAILQ_FOREACH(wp, &env->watchpoints, entry) {
+ QTAILQ_FOREACH(wp, &cpu->watchpoints, entry) {
if (vaddr == (wp->vaddr & TARGET_PAGE_MASK)) {
/* Avoid trapping reads of pages with a write breakpoint. */
if ((prot & PAGE_WRITE) || (wp->flags & BP_MEM_READ)) {
@@ -1573,7 +1580,7 @@ static void check_watchpoint(int offset, int len_mask, int flags)
CPUWatchpoint *wp;
int cpu_flags;
- if (env->watchpoint_hit) {
+ if (cpu->watchpoint_hit) {
/* We re-entered the check after replacing the TB. Now raise
* the debug interrupt so that is will trigger after the
* current instruction. */
@@ -1581,12 +1588,12 @@ static void check_watchpoint(int offset, int len_mask, int flags)
return;
}
vaddr = (cpu->mem_io_vaddr & TARGET_PAGE_MASK) + offset;
- QTAILQ_FOREACH(wp, &env->watchpoints, entry) {
+ QTAILQ_FOREACH(wp, &cpu->watchpoints, entry) {
if ((vaddr == (wp->vaddr & len_mask) ||
(vaddr & wp->len_mask) == wp->vaddr) && (wp->flags & flags)) {
wp->flags |= BP_WATCHPOINT_HIT;
- if (!env->watchpoint_hit) {
- env->watchpoint_hit = wp;
+ if (!cpu->watchpoint_hit) {
+ cpu->watchpoint_hit = wp;
tb_check_watchpoint(env);
if (wp->flags & BP_STOP_BEFORE_ACCESS) {
cpu->exception_index = EXCP_DEBUG;
diff --git a/gdbstub.c b/gdbstub.c
index c5ab73f..0176b3f 100644
--- a/gdbstub.c
+++ b/gdbstub.c
@@ -1204,8 +1204,8 @@ static void gdb_vm_state_change(void *opaque, int running, RunState state)
}
switch (state) {
case RUN_STATE_DEBUG:
- if (env->watchpoint_hit) {
- switch (env->watchpoint_hit->flags & BP_MEM_ACCESS) {
+ if (cpu->watchpoint_hit) {
+ switch (cpu->watchpoint_hit->flags & BP_MEM_ACCESS) {
case BP_MEM_READ:
type = "r";
break;
@@ -1219,8 +1219,8 @@ static void gdb_vm_state_change(void *opaque, int running, RunState state)
snprintf(buf, sizeof(buf),
"T%02xthread:%02x;%swatch:" TARGET_FMT_lx ";",
GDB_SIGNAL_TRAP, cpu_index(cpu), type,
- env->watchpoint_hit->vaddr);
- env->watchpoint_hit = NULL;
+ (target_ulong)cpu->watchpoint_hit->vaddr);
+ cpu->watchpoint_hit = NULL;
goto send_packet;
}
tb_flush(env);
diff --git a/include/exec/cpu-defs.h b/include/exec/cpu-defs.h
index be9569c..338b8cb 100644
--- a/include/exec/cpu-defs.h
+++ b/include/exec/cpu-defs.h
@@ -119,13 +119,6 @@ typedef struct CPUBreakpoint {
QTAILQ_ENTRY(CPUBreakpoint) entry;
} CPUBreakpoint;
-typedef struct CPUWatchpoint {
- target_ulong vaddr;
- target_ulong len_mask;
- int flags; /* BP_* */
- QTAILQ_ENTRY(CPUWatchpoint) entry;
-} CPUWatchpoint;
-
#define CPU_TEMP_BUF_NLONGS 128
#define CPU_COMMON \
/* soft mmu support */ \
@@ -134,8 +127,5 @@ typedef struct CPUWatchpoint {
/* from this point: preserved by CPU reset */ \
/* ice debug support */ \
QTAILQ_HEAD(breakpoints_head, CPUBreakpoint) breakpoints; \
- \
- QTAILQ_HEAD(watchpoints_head, CPUWatchpoint) watchpoints; \
- CPUWatchpoint *watchpoint_hit; \
#endif
diff --git a/include/qom/cpu.h b/include/qom/cpu.h
index 4d1ea35..c7420e0 100644
--- a/include/qom/cpu.h
+++ b/include/qom/cpu.h
@@ -151,6 +151,13 @@ typedef struct icount_decr_u16 {
} icount_decr_u16;
#endif
+typedef struct CPUWatchpoint {
+ vaddr vaddr;
+ vaddr len_mask;
+ int flags; /* BP_* */
+ QTAILQ_ENTRY(CPUWatchpoint) entry;
+} CPUWatchpoint;
+
struct KVMState;
struct kvm_run;
@@ -231,6 +238,9 @@ struct CPUState {
int gdb_num_g_regs;
QTAILQ_ENTRY(CPUState) node;
+ QTAILQ_HEAD(watchpoints_head, CPUWatchpoint) watchpoints;
+ CPUWatchpoint *watchpoint_hit;
+
void *opaque;
/* In order to avoid passing too many arguments to the MMIO helpers,
diff --git a/linux-user/main.c b/linux-user/main.c
index 99220b3..3345a8f 100644
--- a/linux-user/main.c
+++ b/linux-user/main.c
@@ -3431,6 +3431,7 @@ void init_task_state(TaskState *ts)
CPUArchState *cpu_copy(CPUArchState *env)
{
+ CPUState *cpu = ENV_GET_CPU(env);
CPUArchState *new_env = cpu_init(cpu_model);
#if defined(TARGET_HAS_ICE)
CPUBreakpoint *bp;
@@ -3446,12 +3447,12 @@ CPUArchState *cpu_copy(CPUArchState *env)
Note: Once we support ptrace with hw-debug register access, make sure
BP_CPU break/watchpoints are handled correctly on clone. */
QTAILQ_INIT(&env->breakpoints);
- QTAILQ_INIT(&env->watchpoints);
+ QTAILQ_INIT(&cpu->watchpoints);
#if defined(TARGET_HAS_ICE)
QTAILQ_FOREACH(bp, &env->breakpoints, entry) {
cpu_breakpoint_insert(new_env, bp->pc, bp->flags, NULL);
}
- QTAILQ_FOREACH(wp, &env->watchpoints, entry) {
+ QTAILQ_FOREACH(wp, &cpu->watchpoints, entry) {
cpu_watchpoint_insert(new_env, wp->vaddr, (~wp->len_mask) + 1,
wp->flags, NULL);
}
diff --git a/target-i386/cpu.h b/target-i386/cpu.h
index 62641af..9060187 100644
--- a/target-i386/cpu.h
+++ b/target-i386/cpu.h
@@ -876,7 +876,7 @@ typedef struct CPUX86State {
target_ulong dr[8]; /* debug registers */
union {
CPUBreakpoint *cpu_breakpoint[4];
- CPUWatchpoint *cpu_watchpoint[4];
+ struct CPUWatchpoint *cpu_watchpoint[4];
}; /* break/watchpoints for dr[0..3] */
uint32_t smbase;
int old_exception; /* exception in flight */
diff --git a/target-i386/helper.c b/target-i386/helper.c
index 6d9bd71..bd8da20 100644
--- a/target-i386/helper.c
+++ b/target-i386/helper.c
@@ -1088,11 +1088,12 @@ bool check_hw_breakpoints(CPUX86State *env, bool force_dr6_update)
void breakpoint_handler(CPUX86State *env)
{
+ CPUState *cs = CPU(x86_env_get_cpu(env));
CPUBreakpoint *bp;
- if (env->watchpoint_hit) {
- if (env->watchpoint_hit->flags & BP_CPU) {
- env->watchpoint_hit = NULL;
+ if (cs->watchpoint_hit) {
+ if (cs->watchpoint_hit->flags & BP_CPU) {
+ cs->watchpoint_hit = NULL;
if (check_hw_breakpoints(env, false)) {
raise_exception(env, EXCP01_DB);
} else {
diff --git a/target-i386/kvm.c b/target-i386/kvm.c
index e555040..7a295f6 100644
--- a/target-i386/kvm.c
+++ b/target-i386/kvm.c
@@ -2277,13 +2277,13 @@ static int kvm_handle_debug(X86CPU *cpu,
break;
case 0x1:
ret = EXCP_DEBUG;
- env->watchpoint_hit = &hw_watchpoint;
+ cs->watchpoint_hit = &hw_watchpoint;
hw_watchpoint.vaddr = hw_breakpoint[n].addr;
hw_watchpoint.flags = BP_MEM_WRITE;
break;
case 0x3:
ret = EXCP_DEBUG;
- env->watchpoint_hit = &hw_watchpoint;
+ cs->watchpoint_hit = &hw_watchpoint;
hw_watchpoint.vaddr = hw_breakpoint[n].addr;
hw_watchpoint.flags = BP_MEM_ACCESS;
break;
@@ -2291,11 +2291,11 @@ static int kvm_handle_debug(X86CPU *cpu,
}
}
}
- } else if (kvm_find_sw_breakpoint(CPU(cpu), arch_info->pc)) {
+ } else if (kvm_find_sw_breakpoint(cs, arch_info->pc)) {
ret = EXCP_DEBUG;
}
if (ret == 0) {
- cpu_synchronize_state(CPU(cpu));
+ cpu_synchronize_state(cs);
assert(env->exception_injected == -1);
/* pass to guest */
diff --git a/target-lm32/cpu.h b/target-lm32/cpu.h
index b94d9b0..d50726b 100644
--- a/target-lm32/cpu.h
+++ b/target-lm32/cpu.h
@@ -167,7 +167,7 @@ struct CPULM32State {
uint32_t wp[4]; /* watchpoints */
CPUBreakpoint * cpu_breakpoint[4];
- CPUWatchpoint * cpu_watchpoint[4];
+ struct CPUWatchpoint *cpu_watchpoint[4];
CPU_COMMON
diff --git a/target-lm32/helper.c b/target-lm32/helper.c
index e5536c0..67ba278 100644
--- a/target-lm32/helper.c
+++ b/target-lm32/helper.c
@@ -118,11 +118,12 @@ static bool check_watchpoints(CPULM32State *env)
void lm32_debug_excp_handler(CPULM32State *env)
{
+ CPUState *cs = CPU(lm32_env_get_cpu(env));
CPUBreakpoint *bp;
- if (env->watchpoint_hit) {
- if (env->watchpoint_hit->flags & BP_CPU) {
- env->watchpoint_hit = NULL;
+ if (cs->watchpoint_hit) {
+ if (cs->watchpoint_hit->flags & BP_CPU) {
+ cs->watchpoint_hit = NULL;
if (check_watchpoints(env)) {
raise_exception(env, EXCP_WATCHPOINT);
} else {
diff --git a/target-xtensa/cpu.h b/target-xtensa/cpu.h
index 4bae693..e210bac 100644
--- a/target-xtensa/cpu.h
+++ b/target-xtensa/cpu.h
@@ -359,7 +359,7 @@ typedef struct CPUXtensaState {
int exception_taken;
/* Watchpoints for DBREAK registers */
- CPUWatchpoint *cpu_watchpoint[MAX_NDBREAK];
+ struct CPUWatchpoint *cpu_watchpoint[MAX_NDBREAK];
CPU_COMMON
} CPUXtensaState;
diff --git a/target-xtensa/helper.c b/target-xtensa/helper.c
index 2598788..8a9cb0a 100644
--- a/target-xtensa/helper.c
+++ b/target-xtensa/helper.c
@@ -81,11 +81,13 @@ static uint32_t check_hw_breakpoints(CPUXtensaState *env)
void xtensa_breakpoint_handler(CPUXtensaState *env)
{
- if (env->watchpoint_hit) {
- if (env->watchpoint_hit->flags & BP_CPU) {
+ CPUState *cs = CPU(xtensa_env_get_cpu(env));
+
+ if (cs->watchpoint_hit) {
+ if (cs->watchpoint_hit->flags & BP_CPU) {
uint32_t cause;
- env->watchpoint_hit = NULL;
+ cs->watchpoint_hit = NULL;
cause = check_hw_breakpoints(env);
if (cause) {
debug_exception_env(env, cause);
--
1.8.4.5
--
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