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ARM: Expose vfp_get_fpscr() and vfp_set_fpscr() to C code

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Expose the vfp_get_fpscr() and vfp_set_fpscr() functions to C
code as well as generated code, so we can use them to read and
write the FPSCR when saving and restoring VFP registers across
signal handlers in linux-user mode.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@nokia.com>
This commit is contained in:
Peter Maydell 2010-11-24 15:20:04 +00:00 • committed by Riku Voipio
parent 5f0b7c888b
commit 0165329578
2 changed files with 14 additions and 0 deletions
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4
target-arm/cpu.h
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@ -300,6 +300,10 @@ static inline void xpsr_write(CPUARMState *env, uint32_t val, uint32_t mask)
}
}
/* Return the current FPSCR value. */
uint32_t vfp_get_fpscr(CPUARMState *env);
void vfp_set_fpscr(CPUARMState *env, uint32_t val);
enum arm_cpu_mode {
ARM_CPU_MODE_USR = 0x10,
ARM_CPU_MODE_FIQ = 0x11,