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From: | Richard Henderson |
Subject: | Re: [Qemu-arm] [Qemu-devel] [PATCH 09/26] target/arm/helper: don't return early for STKOF faults during stacking |
Date: | Tue, 23 Apr 2019 14:46:50 -0700 |
User-agent: | Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.6.1 |
On 4/16/19 5:57 AM, Peter Maydell wrote: > Currently the code in v7m_push_stack() which detects a violation > of the v8M stack limit simply returns early if it does so. This > is OK for the current integer-only code, but won't work for the > floating point handling we're about to add. We need to continue > executing the rest of the function so that we check for other > exceptions like not having permission to use the FPU and so > that we correctly set the FPCCR state if we are doing lazy > stacking. Refactor to avoid the early return. > > Signed-off-by: Peter Maydell <address@hidden> > --- > target/arm/helper.c | 23 ++++++++++++++++++----- > 1 file changed, 18 insertions(+), 5 deletions(-) Reviewed-by: Richard Henderson <address@hidden> r~
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