<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">Konstantin,<div class=""><br class=""></div><div class="">Provided that gcc & gdb work with Dwarf2 .loc and .file directives and gcc can handle multiple .file directives in one file, it should work with that toolchain. I just haven’t tested it.</div><div class=""><br class=""></div><div class="">The single line change I added to the processor specific files, e.g. arm.rb, would need to be added to mips.rb and the other processor backend .rb files. I also didn’t make those since I can’t test them either.</div><div class=""><br class=""></div><div class="">If you could try add the single line change to mips.rb and test on gcc / gdb that would be great.</div><div class=""><br class=""></div><div class="">- Michael</div><div class=""><br class=""><div><blockquote type="cite" class=""><div class="">On Jan 4, 2016, at 11:47 AM, Konstantin Tokarev <<a href="mailto:annulen@yandex.ru" class="">annulen@yandex.ru</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><br style="font-family: Helvetica; font-size: 14px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><br style="font-family: Helvetica; font-size: 14px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><span style="font-family: Helvetica; font-size: 14px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: inline !important;" class="">04.01.2016, 22:39, "Michael Saboff" <</span><a href="mailto:msaboff@apple.com" style="font-family: Helvetica; font-size: 14px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class="">msaboff@apple.com</a><span style="font-family: Helvetica; font-size: 14px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: inline !important;" class="">>:</span><br style="font-family: Helvetica; font-size: 14px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><blockquote type="cite" style="font-family: Helvetica; font-size: 14px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class="">Konstantin,<br class=""><br class="">Actually, that change hasn’t been landed. I have been waiting for a fix in the clang toolchain. I have provided that fix to the clang team, but it hasn’t landed yet.<br class=""><br class="">I posted my DWARF2 changes to the bug: <<a href="https://bugs.webkit.org/show_bug.cgi?id=152703" class="">https://bugs.webkit.org/show_bug.cgi?id=152703</a>> - “offlineasm: Emit Dwarf2 file and location directives to allow for debugging .asm files”.<br class=""><br class="">I’ll work with the clang team to get that change done.<br class=""><br class="">If you are willing, it would be good to get gcc/gdb working with the change as well. I only did changes for the compiler (clang) and CPUs (X86, ARM & ARM64) that I could test.<br class=""></blockquote><br style="font-family: Helvetica; font-size: 14px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><span style="font-family: Helvetica; font-size: 14px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: inline !important;" class="">Michael,</span><br style="font-family: Helvetica; font-size: 14px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><br style="font-family: Helvetica; font-size: 14px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><span style="font-family: Helvetica; font-size: 14px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: inline !important;" class="">Problem is that I'm using gcc (and my target is MIPS). Does your change work with GCC, or this is clang-only feature?</span><br style="font-family: Helvetica; font-size: 14px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><br style="font-family: Helvetica; font-size: 14px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><span style="font-family: Helvetica; font-size: 14px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: inline !important;" class="">Though I guess it should be feasible to build one assembly file with clang using its MIPS backend, and use gcc for the rest of build.</span><br style="font-family: Helvetica; font-size: 14px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><br style="font-family: Helvetica; font-size: 14px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><blockquote type="cite" style="font-family: Helvetica; font-size: 14px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><br class="">- Michael<br class=""><br class=""><blockquote type="cite" class="">On Jan 4, 2016, at 10:47 AM, Konstantin Tokarev <<a href="mailto:annulen@yandex.ru" class="">annulen@yandex.ru</a>> wrote:<br class=""><br class="">04.01.2016, 21:41, "Geoffrey Garen" <<a href="mailto:ggaren@apple.com" class="">ggaren@apple.com</a>>:<br class=""><blockquote type="cite" class="">Michael Saboff recently added file and line number annotations to offlineasm.<br class=""><br class="">What other kinds of information would you add using DWARF? How would you update the DWARF information when the .asm file changed?<br class=""></blockquote><br class="">I thought it would be useful to have files and line numbers as DWARF instead of comments so it would be easier to single-step with gdb.<br class=""><br class="">Also, macros could be annotated as inline functions.<br class=""><br class="">However, for now I've fixed crash that I was struggling with.<br class=""><br class=""><blockquote type="cite" class="">Geoff<br class=""><br class=""><blockquote type="cite" class=""> On Jan 3, 2016, at 12:48 PM, Konstantin Tokarev <<a href="mailto:annulen@yandex.ru" class="">annulen@yandex.ru</a>> wrote:<br class=""><br class=""> Hi JSC developers,<br class=""><br class=""> Haven't you ever considered adding DWARF information into assembly produced by offlineasm? I'm trying to fix MIPS backend right now, and I thought it may be useful to debug crashes in LLINT.<br class=""><br class=""> --<br class=""> Regards,<br class=""> Konstantin<br class=""> _______________________________________________<br class=""> jsc-dev mailing list<br class=""> <a href="mailto:jsc-dev@lists.webkit.org" class="">jsc-dev@lists.webkit.org</a><br class=""> <a href="https://lists.webkit.org/mailman/listinfo/jsc-dev" class="">https://lists.webkit.org/mailman/listinfo/jsc-dev</a><br class=""></blockquote></blockquote><br class="">--<br class="">Regards,<br class="">Konstantin<br class="">_______________________________________________<br class="">jsc-dev mailing list<br class=""><a href="mailto:jsc-dev@lists.webkit.org" class="">jsc-dev@lists.webkit.org</a><br class="">https://lists.webkit.org/mailman/listinfo/jsc-dev<br class=""></blockquote></blockquote><br style="font-family: Helvetica; font-size: 14px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><br style="font-family: Helvetica; font-size: 14px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><span style="font-family: Helvetica; font-size: 14px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: inline !important;" class="">--<span class="Apple-converted-space"> </span></span><br style="font-family: Helvetica; font-size: 14px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><span style="font-family: Helvetica; font-size: 14px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: inline !important;" class="">Regards,</span><br style="font-family: Helvetica; font-size: 14px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><span style="font-family: Helvetica; font-size: 14px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: inline !important;" class="">Konstantin</span></div></blockquote></div><br class=""></div></body></html>