The latter is the more interesting test — it writes a 0xcc byte (the x86-64 software breakpoint instruction) which will cause the kernel to deliver a SIGTRAP to our process if executed. This is literally changing the executable code of libc. So the next time we call getchar, if we get a SIGTRAP, we know that the write has succeeded.
Кадр: @sagitzian
，这一点在新收录的资料中也有详细论述
Алевтина Запольская (редактор отдела «Бывший СССР»)
Two teenagers have been arrested after accidentally leaving a backpack containing cannabis and thousands of dollars in cash outside a charity shop in New Zealand, police have told local media.
。新收录的资料对此有专业解读
patch 9.1.1029: the installer can be improved，推荐阅读新收录的资料获取更多信息
Paramount Skydance has proven its willingness to comply with President Donald Trump, but delays in closing the deal could be costly. The company is on the hook to pay Warner Bros. Discovery "a daily ticking fee equal to $0.25 per share per quarter beginning after September 30, 2026." The company also has to pay $7 billion to Warner Bros. Discovery if the deal is terminated for regulatory reasons. Netflix lost the battle for Warner Bros. Discovery, but getting a competitor to potentially overpay for the studio might be its own reward.