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target-arm: Improve semihosting debug prints

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Print semihosting debugging information before the
do_arm_semihosting() call so that angel_SWIreason_ReportException,
which causes the function to not return, gets the same debug prints as
other semihosting calls. Also print out the semihosting call number.

Signed-off-by: Christopher Covington <christopher.covington@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Tested-by: Christopher Covington <cov@codeaurora.org>
Message-id: 1439483745-28752-3-git-send-email-peter.maydell@linaro.org
This commit is contained in:
Christopher Covington 2015-09-07 10:39:27 +01:00 committed by Peter Maydell
parent 857b55adb7
commit 205ace55ff
1 changed files with 9 additions and 3 deletions
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12
target-arm/helper.c
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@ -5228,8 +5228,10 @@ void arm_v7m_cpu_do_interrupt(CPUState *cs)
nr = arm_lduw_code(env, env->regs[15], env->bswap_code) & 0xff;
if (nr == 0xab) {
env->regs[15] += 2;
qemu_log_mask(CPU_LOG_INT,
"...handling as semihosting call 0x%x\n",
env->regs[0]);
env->regs[0] = do_arm_semihosting(env);
qemu_log_mask(CPU_LOG_INT, "...handled as semihosting call\n");
return;
}
}
@ -5549,8 +5551,10 @@ void arm_cpu_do_interrupt(CPUState *cs)
if (((mask == 0x123456 && !env->thumb)
|| (mask == 0xab && env->thumb))
&& (env->uncached_cpsr & CPSR_M) != ARM_CPU_MODE_USR) {
qemu_log_mask(CPU_LOG_INT,
"...handling as semihosting call 0x%x\n",
env->regs[0]);
env->regs[0] = do_arm_semihosting(env);
qemu_log_mask(CPU_LOG_INT, "...handled as semihosting call\n");
return;
}
}
@ -5567,8 +5571,10 @@ void arm_cpu_do_interrupt(CPUState *cs)
if (mask == 0xab
&& (env->uncached_cpsr & CPSR_M) != ARM_CPU_MODE_USR) {
env->regs[15] += 2;
qemu_log_mask(CPU_LOG_INT,
"...handling as semihosting call 0x%x\n",
env->regs[0]);
env->regs[0] = do_arm_semihosting(env);
qemu_log_mask(CPU_LOG_INT, "...handled as semihosting call\n");
return;
}
}