Debug chromium in xcode, only can use the symbol breakpoint now
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sakura sakura
Nov 11, 2019, 1:02:19 PM11/11/19
to Chromium-dev
I build the latest version of chromium and v8.
Mac 10.15, xcode 11.0
Mac 10.15, xcode 11.0
test.html in chromium
<html>
<script>
alert(1);
Math.sin(1);
alert(2);
</script>
</html>
<html>
<script>
alert(1);
Math.sin(1);
alert(2);
</script>
</html>
(lldb) b v8::base::ieee754::sin
libv8.dylib was compiled with optimization - stepping may behave oddly; variables may not be available.
Breakpoint 2: where = libv8_libbase.dylib`v8::base::ieee754::sin(double) + 22 at ieee754.cc:2509:3, address = 0x00000001f01c74e6
(lldb) br list
Current breakpoints:
2: name = 'v8::base::ieee754::sin', locations = 1, resolved = 1, hit count = 1
2.1: where = libv8_libbase.dylib`v8::base::ieee754::sin(double) + 22 at ieee754.cc:2509:3, address = 0x00000001f01c74e6, resolved, hit count = 1
3: file = '/Volumes/sakura_T5/chromium/src/v8/src/base/ieee754.cc', line = 2504, exact_match = 0, locations = 0 (pending)
4: file = '/Volumes/sakura_T5/chromium/src/v8/src/base/ieee754.cc', line = 2512, exact_match = 0, locations = 0 (pending)
I find the file in the file list on the xcode left, apply my breakpoints.
but they are pending, only use symbol breakpoint(such as v8::base::ieee754::sin)
when I triggers the breakpoint, it just show assembly instead of source.
Is this a problem with the Chrome compilation option, or other reasons?
I build chromium and v8 by default method.
(autoninja -C out/Default chrome)
I can see the source directly on the lower version of chromium and v8 (such as v8 7.0.1) when trigger breakpoint, so I think this is not a problem with the Mac and xcode version.
libv8.dylib was compiled with optimization - stepping may behave oddly; variables may not be available.
Breakpoint 2: where = libv8_libbase.dylib`v8::base::ieee754::sin(double) + 22 at ieee754.cc:2509:3, address = 0x00000001f01c74e6
(lldb) br list
Current breakpoints:
2: name = 'v8::base::ieee754::sin', locations = 1, resolved = 1, hit count = 1
2.1: where = libv8_libbase.dylib`v8::base::ieee754::sin(double) + 22 at ieee754.cc:2509:3, address = 0x00000001f01c74e6, resolved, hit count = 1
3: file = '/Volumes/sakura_T5/chromium/src/v8/src/base/ieee754.cc', line = 2504, exact_match = 0, locations = 0 (pending)
4: file = '/Volumes/sakura_T5/chromium/src/v8/src/base/ieee754.cc', line = 2512, exact_match = 0, locations = 0 (pending)
I find the file in the file list on the xcode left, apply my breakpoints.
but they are pending, only use symbol breakpoint(such as v8::base::ieee754::sin)
when I triggers the breakpoint, it just show assembly instead of source.
Is this a problem with the Chrome compilation option, or other reasons?
I build chromium and v8 by default method.
(autoninja -C out/Default chrome)
I can see the source directly on the lower version of chromium and v8 (such as v8 7.0.1) when trigger breakpoint, so I think this is not a problem with the Mac and xcode version.
Takuto Ikuta
Nov 11, 2019, 3:55:21 PM11/11/19
to eternal...@gmail.com, Chromium-dev
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Claudio deSouza
Nov 13, 2019, 1:01:28 PM11/13/19
to Chromium-dev
You have to pass strip_absolute_paths_from_debug_symbols=false to gn (e.g. gn gen out/Default --args="strip_absolute_paths_from_debug_symbols=false")
I had the same problem as well. I'm not sure if this is the correct solution, and there's an open issue for this problem.
Claudio.
Nico Weber
Nov 26, 2019, 3:09:15 PM11/26/19
to Claudio M. D. Souza Junior, Chromium-dev
On Wed, Nov 13, 2019 at 1:01 PM Claudio deSouza <claudi...@gmail.com> wrote:
You have to pass strip_absolute_paths_from_debug_symbols=false to gn (e.g. gn gen out/Default --args="strip_absolute_paths_from_debug_symbols=false")I had the same problem as well. I'm not sure if this is the correct solution, and there's an open issue for this problem.
As mentioned on the other thread, do _not_ set strip_absolute_paths_from_debug_symbols=false. This just suppresses problems that are elsewhere. (E.g. your Xcode might be too old.) We'll likely disable that toggle soon.
Claudio.
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xinggang ling
Sep 15, 2020, 5:42:50 PM9/15/20
to Chromium-dev, eternal...@gmail.com
same issue, how to resolve it? T_T，help me please
Bruce Dawson
Sep 16, 2020, 6:06:55 PM9/16/20
to Chromium-dev, ling...@163.com, eternal...@gmail.com
What gn args are you using? What commit are you synced to?
Remember that you need symbol_level=2 in order to get source-level debugging.
xinggang ling
Sep 29, 2020, 9:36:04 AM9/29/20
to Chromium-dev, Bruce Dawson, xinggang ling, eternal...@gmail.com
wow ~ it works expectly!!!
thank you Bruce Dawson!!!
thank you Bruce Dawson!!!
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