This is the mail archive of the gdb@sourceware.org mailing list for the GDB project.

Index Nav:	[Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav:	[Date Prev] [Date Next]	[Thread Prev] [Thread Next]
Other format:	[Raw text]

Re: how GDB use ptrace to return from a function

From: Yubin Ruan <ablacktshirt at gmail dot com>
To: Joel Brobecker <brobecker at adacore dot com>
Cc: gdb at sourceware dot org
Date: Sat, 18 Nov 2017 12:20:28 +0800
Subject: Re: how GDB use ptrace to return from a function
Authentication-results: sourceware.org; auth=none
References: <CAJYFCiMqA1NO-32g7_vrwpU-h7dmyPaqUe=UZzey1gfFz7ax3g@mail.gmail.com> <20171117161059.3oxfgipkgknfymrm@adacore.com> <CAJYFCiPOOcEv+QMaJMQsgaoDp7Hwn_g2+DT7D-355EOFHy70Rg@mail.gmail.com> <20171118040311.tri7yn4alqxzc3gt@adacore.com>

2017-11-18 12:03 GMT+08:00 Joel Brobecker <brobecker@adacore.com>:
>> what break point events are common for X86?
>
> IIRC, the breakpoint instruction on x86 is the int3 instruction.
> It should generate a SIGTRAP upon execution, just like any user-
> inserted breakpoints.

Thanks Joel ;-)

Yubin

References:
- how GDB use ptrace to return from a function
  - From: Yubin Ruan
- Re: how GDB use ptrace to return from a function
  - From: Joel Brobecker
- Re: how GDB use ptrace to return from a function
  - From: Yubin Ruan
- Re: how GDB use ptrace to return from a function
  - From: Joel Brobecker

Index Nav:	[Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav:	[Date Prev] [Date Next]	[Thread Prev] [Thread Next]