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[Valgrind-users] 答复: 答复: hello there is a question about callgrind on the arm64.
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From: Wuweijia <wuw...@hu...> - 2017-06-12 03:27:43
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I do not know what the shadow stack meant. Is there any idea for the option of compilation to correct it, and I can handle it quickly not modify your codes . Owen -----邮件原件----- 发件人: Josef Weidendorfer [mailto:Jos...@gm...] 发送时间: 2017年6月10日 1:04 收件人: Wuweijia <wuw...@hu...>; val...@li... 抄送: Fanbohao <fan...@hu...> 主题: Re: 答复: [Valgrind-users] hello there is a question about callgrind on the arm64. Sorry, no progress on this front. If you have any ideas to correctly synchronize real/shadow stack in callgrind and can do some tests, this would be very welcome! Josef Am 05.06.2017 um 10:40 schrieb Wuweijia: > Josef: > Hello, is there any news now. when do you can release the patches. > > Owen > > > -----邮件原件----- > 发件人: Josef Weidendorfer [mailto:Jos...@gm...] > 发送时间: 2017年5月20日 6:24 > 收件人: val...@li... > 主题: Re: [Valgrind-users] hello there is a question about callgrind on the arm64. > > Hi Owen, > > callgrind currently is somewhat broken on ARM, as the tracking of entering/leaving functions is unreliable. > > Callgrind heavily uses the stack pointer for that. > On x86, this works fine, as every call/return changes the SP, but on ARM, this is not the case. > > There are ideas and at some point, there were patches promised by someone, but unfortunately nothing useful up to now... > > Josef > > > Am 12.05.2017 um 05:11 schrieb Wuweijia: >> Hi : >> >> I ran the code through the callgrind on the x86-64, it is ok , no >> recursive cycle existed. >> >> But I ran the same the same code through the callgrind on the arm64, >> it show me there is recursive cycle existed. >> >> Between two callgrind.out. file: >> >> In arm64: >> >> There is function name main’2. It meaning that there is >> recursive cycle. And it annote the source failed. >> >> In x86_64: >> >> There is no function name main’2 only main., It mean that >> there is no cycle. >> >> How can I resovle it? >> >> The compile options : gcc g O0 ./main.cpp >> >> The gcc version 4.9 >> >> Run options: valgrind --tool=callgrind ./a.out >> >> Callgrind_annote option callgrind_annote auto=yes >> >> BR >> >> Owen >> >> >> >> --------------------------------------------------------------------- >> - >> -------- Check out the vibrant tech community on one of the world's >> most engaging tech sites, Slashdot.org! http://sdm.link/slashdot >> >> >> >> _______________________________________________ >> Valgrind-users mailing list >> Val...@li... >> https://lists.sourceforge.net/lists/listinfo/valgrind-users >> > > > ---------------------------------------------------------------------- > -------- Check out the vibrant tech community on one of the world's > most engaging tech sites, Slashdot.org! http://sdm.link/slashdot > _______________________________________________ > Valgrind-users mailing list > Val...@li... > https://lists.sourceforge.net/lists/listinfo/valgrind-users > |
