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6 Commits

Author SHA1 Message Date
Fangrui Song
7b6b15e010 [profile][test] Improve coverage-linkage.cpp with ld.lld --gc-sections 
The __llvm_prf_names section uses SHF_GNU_RETAIN.  However, GNU ld before 2015-10
(https://sourceware.org/bugzilla/show_bug.cgi?id=19161) neither supports it nor
retains __llvm_prf_names according to __start___llvm_prf_names. So --gc-sections
does not work on such old GNU ld.

This is not a problem for gold and sufficiently new lld.
 2021-07-06 11:08:47 -07:00
Nico Weber
f814cd7406 Revert "[profile][test] Improve coverage-linkage.cpp" 
This reverts commit 36ba86fe8a.
Fails on some bots, see comments on
https://reviews.llvm.org/rG36ba86fe8a29cdf3251b786db7f342efde666cb2
 2021-07-06 08:49:43 -04:00
Fangrui Song
36ba86fe8a [profile][test] Improve coverage-linkage.cpp 2021-07-05 12:46:06 -07:00
Fangrui Song
b19c0ac7dd [profile] Add -fprofile-instr-generate tests for weak definition and various linkages 2021-06-04 10:26:55 -07:00
Nico Weber
db3e4faa4d Temporarily remove one of the tests added in effb87dfa8 
It fails on some Linux systems. Remove the test until we've figured
out what's going on. See https://crbug.com/1216005 for details.
 2021-06-04 10:03:21 -04:00
Fangrui Song
effb87dfa8 [profile] Add -fprofile-instr-generate tests for weak definition and various linkages 2021-06-02 16:12:08 -07:00