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target/arm: Drop IS_M() macro

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We only use the IS_M() macro in two places, and it's a bit of a
namespace grab to put in cpu.h. Drop it in favour of just explicitly
calling arm_feature() in the places where it was used.

Backports commit 531c60a97ab51618b4b9ccef1c5fe00607079706 from qemu
This commit is contained in:
Peter Maydell 2018-03-01 23:58:59 -05:00 committed by Lioncash
parent f2a5ddf5dc
commit 48825c1be2
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GPG key ID: 4E3C3CC1031BA9C7
3 changed files with 2 additions and 8 deletions
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2
qemu/target/arm/cpu.c
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@ -176,7 +176,7 @@ static void arm_cpu_reset(CPUState *s)
/* On ARMv7-M the CPSR_I is the value of the PRIMASK register, and is
* clear at reset. Initial SP and PC are loaded from ROM.
*/
if (IS_M(env)) {
if (arm_feature(env, ARM_FEATURE_M)) {
uint32_t initial_msp; /* Loaded from 0x0 */
uint32_t initial_pc; /* Loaded from 0x4 */

6
qemu/target/arm/cpu.h
View file

@ -1757,12 +1757,6 @@ bool write_list_to_cpustate(ARMCPU *cpu);
*/
bool write_cpustate_to_list(ARMCPU *cpu);
/* Does the core conform to the the "MicroController" profile. e.g. Cortex-M3.
Note the M in older cores (eg. ARM7TDMI) stands for Multiply. These are
conventional cores (ie. Application or Realtime profile). */
#define IS_M(env) arm_feature(env, ARM_FEATURE_M)
#define ARM_CPUID_TI915T 0x54029152
#define ARM_CPUID_TI925T 0x54029252

2
qemu/target/arm/helper.c
View file

@ -5910,7 +5910,7 @@ void arm_cpu_do_interrupt(CPUState *cs)
CPUARMState *env = &cpu->env;
unsigned int new_el = env->exception.target_el;
assert(!IS_M(env));
assert(!arm_feature(env, ARM_FEATURE_M));
arm_log_exception(cs->exception_index);
qemu_log_mask(CPU_LOG_INT, "...from EL%d to EL%d\n", arm_current_el(env),