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authorMasahiro Yamada <yamada.masahiro@socionext.com>2018-03-19 20:26:11 +0900
committerMasahiro Yamada <yamada.masahiro@socionext.com>2018-03-26 02:01:28 +0900
commit7657f60e8ffad587fabc74873b5f42083a60c3cf (patch)
tree54bdb665bf483b5fa769ebf7279b6c0b7d3e5eea /scripts/Makefile.build
parentf605005a50fc1443a14b4e8c9c1727881f8f96ae (diff)
kbuild: remove partial section mismatch detection for built-in.a
When built-in.o was incrementally linked with 'ld -r', the section mismatch analysis for the individual built-in.o was possible when CONFIG_DEBUG_SECTION_MISMATCH was enabled. With the migration to the thin archive, built-in.a (former, built-in.o) is no longer an ELF file. So, the modpost does nothing useful. scripts/mod/modpost.c just checks the header to bail out, as follows: /* Is this a valid ELF file? */ if ((hdr->e_ident[EI_MAG0] != ELFMAG0) || (hdr->e_ident[EI_MAG1] != ELFMAG1) || (hdr->e_ident[EI_MAG2] != ELFMAG2) || (hdr->e_ident[EI_MAG3] != ELFMAG3)) { /* Not an ELF file - silently ignore it */ return 0; } We have the full analysis in the final link stage anyway, so we would not miss the section mismatching. I do not see a good reason to require extra linking only for the purpose of the per-directory analysis. Just get rid of this part. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Diffstat (limited to 'scripts/Makefile.build')
-rw-r--r--scripts/Makefile.build3
1 files changed, 1 insertions, 2 deletions
diff --git a/scripts/Makefile.build b/scripts/Makefile.build
index 316cb95d7ff2..66461e9323b4 100644
--- a/scripts/Makefile.build
+++ b/scripts/Makefile.build
@@ -456,8 +456,7 @@ quiet_cmd_link_o_target = AR $@
# If the list of objects to link is empty, just create an empty built-in.a
cmd_link_o_target = $(if $(strip $(real-obj-y)),\
- $(cmd_make_builtin) $@ $(filter $(real-obj-y), $^) \
- $(cmd_secanalysis),\
+ $(cmd_make_builtin) $@ $(filter $(real-obj-y), $^), \
$(cmd_make_empty_builtin) $@)
$(builtin-target): $(real-obj-y) FORCE