http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54943
Bug #: 54943
Summary: ARM - EABI - varargs floating point issue
Classification: Unclassified
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: libstdc++
AssignedTo: unassig...@gcc.gnu.org
ReportedBy: selvaraj.santh...@gmail.com
I have a data-conversion function in our ARM9 code which uses varargs. I've
been using an arm-elf from a couple of years ago, with no problems. Recently,
we upgraded to the arm-eabi-none , and I'm finding that we now have problems
with floating point values. What I eventually discovered is that doubles are
being forced to 8-byte boundaries, and the existing varargs floating-point
handler didn't expect to find gaps in the args.
I can manually check the pointer and force it up to an eight-byte boundary (in
fact, I did that, and that fixed the issue entirely), but I'd like to know why
this has suddenly started happening.
I would appreciate any advice or insights that anyone could provide on these
issues.
