diff options
author | Andreas Färber <afaerber@suse.de> | 2013-07-02 17:43:21 +0200 |
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committer | Andreas Färber <afaerber@suse.de> | 2013-10-07 11:48:39 +0200 |
commit | 30ba0ee52d1519b717089782ef1caf0480a01dc3 (patch) | |
tree | 2007245f902dc0dfba178f55cc9f0a0288fddfc3 /linux-user | |
parent | 812586405c5d165aae791d3806a9bbb8312ec2ac (diff) | |
download | hqemu-30ba0ee52d1519b717089782ef1caf0480a01dc3.zip hqemu-30ba0ee52d1519b717089782ef1caf0480a01dc3.tar.gz |
cpu: Move cpu_copy() into linux-user
It is only used there and is deemed very fragile if not incorrect in its
current memcpy() form. Moving it into linux-user will allow to move
parts into target_cpu.h headers and only copy what the ABI mandates.
Signed-off-by: Andreas Färber <afaerber@suse.de>
Diffstat (limited to 'linux-user')
-rw-r--r-- | linux-user/main.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/linux-user/main.c b/linux-user/main.c index 1561950..5fe587b 100644 --- a/linux-user/main.c +++ b/linux-user/main.c @@ -3285,6 +3285,37 @@ void init_task_state(TaskState *ts) ts->sigqueue_table[i].next = NULL; } +CPUArchState *cpu_copy(CPUArchState *env) +{ + CPUArchState *new_env = cpu_init(env->cpu_model_str); +#if defined(TARGET_HAS_ICE) + CPUBreakpoint *bp; + CPUWatchpoint *wp; +#endif + + /* Reset non arch specific state */ + cpu_reset(ENV_GET_CPU(new_env)); + + memcpy(new_env, env, sizeof(CPUArchState)); + + /* Clone all break/watchpoints. + 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); +#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) { + cpu_watchpoint_insert(new_env, wp->vaddr, (~wp->len_mask) + 1, + wp->flags, NULL); + } +#endif + + return new_env; +} + static void handle_arg_help(const char *arg) { usage(); |