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semihosting: create SemihostingConfig structure and semihost.h

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Remove semihosting_enabled and semihosting_target and replace them with
SemihostingConfig structure containing equivalent fields. The structure
is defined in vl.c where it is actually set.

Also introduce separate header file include/exec/semihost.h allowing to
access semihosting config related stuff from target specific semihosting
code.

Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1434643256-16858-2-git-send-email-leon.alrae@imgtec.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Leon Alrae 2015-06-19 14:17:45 +01:00 • committed by Peter Maydell
parent b58850e79d
commit cfe67cef48
9 changed files with 87 additions and 28 deletions
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3
target-lm32/helper.c
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@ -20,6 +20,7 @@
#include "cpu.h"
#include "qemu/host-utils.h"
#include "sysemu/sysemu.h"
#include "exec/semihost.h"
int lm32_cpu_handle_mmu_fault(CPUState *cs, vaddr address, int rw,
int mmu_idx)
@ -162,7 +163,7 @@ void lm32_cpu_do_interrupt(CPUState *cs)
switch (cs->exception_index) {
case EXCP_SYSTEMCALL:
if (unlikely(semihosting_enabled)) {
if (unlikely(semihosting_enabled())) {
/* do_semicall() returns true if call was handled. Otherwise
* do the normal exception handling. */
if (lm32_cpu_do_semihosting(cs)) {