Prathamesh Kulkarni
2015-05-11 02:42:14 UTC
== This week ==
* PR49551 (2/10)
- Created new patch: http://pastebin.com/PsLTgvp7
- merge_decls() calls memcpy to copy newdecl into olddecl thus
overriding DECL_COMMON in olddecl which is the source of the bug.
If newdecl has common/nocommon attribute set, honor it,
else DECL_COMMON would be set if both olddecl and newdecl have DECL_COMMON set.
- Bootstrapped on x86, tested on x86, arm
- Not yet figured out why r221297 masks this bug.
* TCWG-619 (4/10)
- managed to build chromium LTO on ARM, requires disabling components
enabled by variable 'chromium_code'. Size of chrome executable reduces
by 8 mb.
- the bug: "error out of range" appears only during LTO build of
components enabled by chromium_code. Results in very few instances of
the same error message when LTO build for chromium_code components.
- Disabling LTO in sandbox.gyp and passing -flto results in following error:
/tmp/ccYJJbUK.ltrans25.ltrans.o:<artificial>:vtable for
blink::WebDocument [clone .lto_priv.89343]: warning: relocation refers
to discarded section
/home/prathamesh.kulkarni/fsf-toolchain/lib/gcc/x86_64-unknown-linux-gnu/6.0.0/../../../../x86_64-unknown-linux-gnu/bin/ld.gold:
error: hidden symbol '_ZN5blink11WebDocumentD1Ev' is not defined
locally
Also present for x86.
The workaround is to pass -flto --param lto-partitions=1 as mentioned
in PR57703.
- gold ICE with v8 LTO build for ARM not reproducible with master branch.
- Trying to use Martin Liska's scripts for gathering build stats:
https://github.com/marxin/script-misc/blob/master/system_top.py
https://github.com/marxin/script-misc/blob/master/vmstat_parser.py
* Misc (4/10)
- Exams preparation
- Visa application
== Next Week ==
- PR49551: figure out why r221297 masks the bug, write test-cases and
submit patch upstream
- chromium/v8 build stats
- exams
* PR49551 (2/10)
- Created new patch: http://pastebin.com/PsLTgvp7
- merge_decls() calls memcpy to copy newdecl into olddecl thus
overriding DECL_COMMON in olddecl which is the source of the bug.
If newdecl has common/nocommon attribute set, honor it,
else DECL_COMMON would be set if both olddecl and newdecl have DECL_COMMON set.
- Bootstrapped on x86, tested on x86, arm
- Not yet figured out why r221297 masks this bug.
* TCWG-619 (4/10)
- managed to build chromium LTO on ARM, requires disabling components
enabled by variable 'chromium_code'. Size of chrome executable reduces
by 8 mb.
- the bug: "error out of range" appears only during LTO build of
components enabled by chromium_code. Results in very few instances of
the same error message when LTO build for chromium_code components.
- Disabling LTO in sandbox.gyp and passing -flto results in following error:
/tmp/ccYJJbUK.ltrans25.ltrans.o:<artificial>:vtable for
blink::WebDocument [clone .lto_priv.89343]: warning: relocation refers
to discarded section
/home/prathamesh.kulkarni/fsf-toolchain/lib/gcc/x86_64-unknown-linux-gnu/6.0.0/../../../../x86_64-unknown-linux-gnu/bin/ld.gold:
error: hidden symbol '_ZN5blink11WebDocumentD1Ev' is not defined
locally
Also present for x86.
The workaround is to pass -flto --param lto-partitions=1 as mentioned
in PR57703.
- gold ICE with v8 LTO build for ARM not reproducible with master branch.
- Trying to use Martin Liska's scripts for gathering build stats:
https://github.com/marxin/script-misc/blob/master/system_top.py
https://github.com/marxin/script-misc/blob/master/vmstat_parser.py
* Misc (4/10)
- Exams preparation
- Visa application
== Next Week ==
- PR49551: figure out why r221297 masks the bug, write test-cases and
submit patch upstream
- chromium/v8 build stats
- exams