delve/_fixtures/nopbreakpoint/main.s

#include "textflag.h"

TEXT ·compromised(SB),NOSPLIT,$0-0
	BYTE	 $0x90   // The assembler strips NOP, this is a hardcoded NOP instruction
	CALL main·skipped(SB)
	RET
proc: fix breakpoint confusion on resume (#1738) Fixes a case of breakpoint confusion on resume caused by having two breakpoints one byte apart. This bug can cause the target program to resume execution a single byte inside an instruction and crash either with SIGILL or a SIGSEGV, or misbehave (depending on how the truncated instruction is decoded). native.(*Thread).StepInstruction should call FindBreakpoint using adjustPC==false because at that point the PC of the thread should already have been adjusted (and it has been). 2019-10-28 21:55:32 +00:00			`#include "textflag.h"`

			`TEXT ·compromised(SB),NOSPLIT,$0-0`
			`BYTE $0x90 // The assembler strips NOP, this is a hardcoded NOP instruction`
			`CALL main·skipped(SB)`
			`RET`