One of the cool things about Xcode and GDB is that you can create custom breakpoints that could be set up by calling a function within your own project.<\/p>\n
GDB supports C functionality in their conditional checks, but for me, I found this functionality to be particularly helpful when paired with convenience variables.<\/p>\n
So, let’s say you have a string in your function and you want your breakpoint to only be triggered when the string matches a particular pattern. What you could do is the following:<\/p>\n
In a breakpoint, set the following in the command:
\nset $myRes = (char*)strstr(myCharPtr, “My search string”)<\/p>\n
For this particular breakpoint, you can actually set it to continue since you don’t want to stop every time GDB gets to that point.<\/p>\n
Now in a new breakpoint, set the condition for that breakpoint to $myRes<\/p>\n
One problem I see with this is that you might break on a line of code that doesn’t make sense if the same variable was modified by another thread.<\/p>\n
In this case, you might want to reset the variable or have another condition to check the thread id too!<\/p>\n","protected":false},"excerpt":{"rendered":"
One of the cool things about Xcode and GDB is that you can create custom breakpoints that could be set up by calling a function within your own project. GDB supports C functionality in their conditional checks, but for me, I found this functionality to be particularly helpful when paired with convenience variables. So, let’s … Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[132,212,506],"class_list":["post-325","post","type-post","status-publish","format-standard","hentry","category-coding","tag-conditional-breakpoints","tag-gdb","tag-xcode"],"_links":{"self":[{"href":"https:\/\/jaimerios.com\/index.php?rest_route=\/wp\/v2\/posts\/325","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/jaimerios.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/jaimerios.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/jaimerios.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/jaimerios.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=325"}],"version-history":[{"count":0,"href":"https:\/\/jaimerios.com\/index.php?rest_route=\/wp\/v2\/posts\/325\/revisions"}],"wp:attachment":[{"href":"https:\/\/jaimerios.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=325"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jaimerios.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=325"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jaimerios.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=325"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}