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build: make kernel entry symbol a config option

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This might change for different ports, so make it configurable.

Signed-off-by: Gustavo Lima Chaves <gustavo.lima.chaves@intel.com>
This commit is contained in:
Gustavo Lima Chaves 2017-10-11 13:56:28 -07:00 • committed by Anas Nashif
commit c94760045f
2 changed files with 7 additions and 1 deletions
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2
Makefile
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@ -849,7 +849,7 @@ quiet_cmd_create-lnk = LINK $@
echo "$(LINKFLAGPREFIX)-Map=$(KERNEL_NAME).map"; \ echo "$(LINKFLAGPREFIX)-Map=$(KERNEL_NAME).map"; \
echo "-L $(objtree)/include/generated"; \ echo "-L $(objtree)/include/generated"; \
echo "-u _OffsetAbsSyms -u _ConfigAbsSyms"; \ echo "-u _OffsetAbsSyms -u _ConfigAbsSyms"; \
echo "-e __start"; \ echo "-e $(CONFIG_KERNEL_ENTRY)"; \
echo "$(LINKFLAGPREFIX)--start-group"; \ echo "$(LINKFLAGPREFIX)--start-group"; \
echo "$(LINKFLAGPREFIX)--whole-archive"; \ echo "$(LINKFLAGPREFIX)--whole-archive"; \
echo "libapplication.a"; \ echo "libapplication.a"; \

6
misc/Kconfig
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@ -98,6 +98,12 @@ config LINK_WHOLE_ARCHIVE
This options allows linking external libraries with the This options allows linking external libraries with the
--whole-archive option to keep all symbols. --whole-archive option to keep all symbols.
config KERNEL_ENTRY
string "Kernel entry symbol"
default "__start"
help
Code entry symbol, to be set at linking phase.
endmenu endmenu
menu "Compiler Options" menu "Compiler Options"