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[v10,39/65] elf: Don't check FCR31_NAN2008 bit for nanoMIPS

Message ID 1534514633-13725-40-git-send-email-aleksandar.markovic@rt-rk.com
State New
Headers show
Series [v10,01/65] target/mips: Add preprocessor constants for nanoMIPS | expand

Commit Message

Aleksandar Markovic Aug. 17, 2018, 2:03 p.m. UTC 
From: Aleksandar Markovic <amarkovic@wavecomp.com>

nanoMIPS is always NaN2008 compliant, and rules for checking
FCR31's NAN2008 bit are obsoleted.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Signed-off-by: Stefan Markovic <smarkovic@wavecomp.com>
---
 linux-user/mips/cpu_loop.c | 3 +++
 1 file changed, 3 insertions(+)
diff mbox series

Patch

diff --git a/linux-user/mips/cpu_loop.c b/linux-user/mips/cpu_loop.c
index 1d3dc9e..c9c20cf 100644
--- a/linux-user/mips/cpu_loop.c
+++ b/linux-user/mips/cpu_loop.c
@@ -747,6 +747,9 @@  void target_cpu_copy_regs(CPUArchState *env, struct target_pt_regs *regs)
     if (regs->cp0_epc & 1) {
         env->hflags |= MIPS_HFLAG_M16;
     }
+    if (env->insn_flags & ISA_NANOMIPS32) {
+        return;
+    }
     if (((info->elf_flags & EF_MIPS_NAN2008) != 0) !=
         ((env->active_fpu.fcr31 & (1 << FCR31_NAN2008)) != 0)) {
         if ((env->active_fpu.fcr31_rw_bitmask &