RFR: 8186780: clang-4.0 fastdebug assertion failure in os_linux_x86:os::verify_stack_alignment() (original) (raw)

Martin Buchholz martinrb at google.com
Fri Jun 22 16:48:32 UTC 2018

There sure seems to be a lot of confusion about how many stack frames we're getting at the hot end of the stack, e.g.

register intptr_t **fp asm (SPELL_REG_FP);

// fp is for this frame (_get_previous_fp). We want the fp for the // caller of os::current_frame*(), so go up two frames. However, for // optimized builds, _get_previous_fp() will be inlined, so only go // up 1 frame in that case. #ifdef NMT_NOINLINE return (intptr_t*)fp; #else return *fp; #endif

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