semihosting: Initialize heap once per process

While semihosting isn't really thread aware, the current
implementation allocates space for the heap per-thread.

Remove the heap_base and heap_limit fields from TaskState.
Replace with static variables within do_common_semihosting.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

1 files changed, 0 insertions, 8 deletions

diff --git a/linux-user/m68k/cpu_loop.c b/linux-user/m68k/cpu_loop.c
index 3aaaf02ca4..23693f3358 100644
--- a/linux-user/m68k/cpu_loop.c
+++ b/linux-user/m68k/cpu_loop.c
@@ -94,10 +94,6 @@ void cpu_loop(CPUM68KState *env)
 
 void target_cpu_copy_regs(CPUArchState *env, target_pt_regs *regs)
 {
-    CPUState *cpu = env_cpu(env);
-    TaskState *ts = get_task_state(cpu);
-    struct image_info *info = ts->info;
-
     env->pc = regs->pc;
     env->dregs[0] = regs->d0;
     env->dregs[1] = regs->d1;
@@ -116,8 +112,4 @@ void target_cpu_copy_regs(CPUArchState *env, target_pt_regs *regs)
     env->aregs[6] = regs->a6;
     env->aregs[7] = regs->usp;
     env->sr = regs->sr;
-
-    ts->heap_base = info->brk;
-    /* This will be filled in on the first SYS_HEAPINFO call.  */
-    ts->heap_limit = 0;
 }