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| author | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2021-07-14 09:40:11 +0200 |
|---|---|---|
| committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2021-07-21 11:39:30 +0200 |
| commit | f8884b9c51faea329196bf5914bcd2d700622c38 (patch) | |
| tree | 14c9f970f6756cd58fd00bcaab04e4db9de47b00 /gcc/coverage.c | |
| parent | e0335bb7d1fc7dd05e91bcdd1f65b2bcf8ec1a09 (diff) | |
| download | gcc-f8884b9c51faea329196bf5914bcd2d700622c38.zip gcc-f8884b9c51faea329196bf5914bcd2d700622c38.tar.gz gcc-f8884b9c51faea329196bf5914bcd2d700622c38.tar.bz2 | |
gcov: Fix use of profile info section
If the -fprofile-info-section is used, then the gcov information is registered
in a linker set. This is done by build_gcov_info_var_registration(). The
compiler generated object placed in the section was not marked as referenced,
so once optimization was enabled, this object was optimized away. Mark it as
referenced.
gcc/
* coverage.c (build_gcov_info_var_registration): Mark the object placed
in the linker set as referenced so that it does not get optimized away.
Diffstat (limited to 'gcc/coverage.c')
| -rw-r--r-- | gcc/coverage.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/gcc/coverage.c b/gcc/coverage.c index dfc8108..ac9a9fd 100644 --- a/gcc/coverage.c +++ b/gcc/coverage.c @@ -50,6 +50,7 @@ along with GCC; see the file COPYING3. If not see #include "auto-profile.h" #include "profile.h" #include "diagnostic.h" +#include "varasm.h" #include "gcov-io.c" @@ -1121,6 +1122,7 @@ build_gcov_info_var_registration (tree gcov_info_type) DECL_NAME (var) = get_identifier (name_buf); get_section (profile_info_section, SECTION_UNNAMED, NULL); set_decl_section_name (var, profile_info_section); + mark_decl_referenced (var); DECL_INITIAL (var) = build_fold_addr_expr (gcov_info_var); varpool_node::finalize_decl (var); } |