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| author | Ahmad Fatoum <a.fatoum@pengutronix.de> | 2022-10-24 08:57:11 +0200 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2022-10-26 06:21:19 +0200 |
| commit | 392ef1e9c0e27e5abc75fc41176ad0f25016921a (patch) | |
| tree | 5cfcc8217edec3ccd1166c3f811b90641cd5c68b | |
| parent | eb8006c2e04e8410763c51120ea3d9989f704ad3 (diff) | |
| download | barebox-392ef1e9c0e27e5abc75fc41176ad0f25016921a.tar.gz barebox-392ef1e9c0e27e5abc75fc41176ad0f25016921a.tar.xz | |
pbl: have linker define __pbl_board_entry alias
We want the board-specific entry points to have control over what code
comes first. So far, we solved this by setting the entry point on the
linker command line and doing the early setup in inline assembly.
As __attribute__((naked)) is not supported for arm64, we'll move there
to out-of-line assembly and thus we'll need a way to portably reference
the board-specific entry point. Define a new alias that points at it.
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Link: https://lore.barebox.org/20221024065716.1215046-4-a.fatoum@pengutronix.de
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
| -rw-r--r-- | images/Makefile | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/images/Makefile b/images/Makefile index 218a24ff1d..aa5814710f 100644 --- a/images/Makefile +++ b/images/Makefile @@ -59,6 +59,7 @@ $(pbl-lds): $(obj)/../arch/$(SRCARCH)/lib/pbl.lds.S FORCE quiet_cmd_elf__ ?= LD $@ cmd_elf__ ?= $(LD) $(LDFLAGS_pbl) --gc-sections \ -e $(2) -Map $@.map $(LDFLAGS_$(@F)) -o $@ \ + --defsym=__pbl_board_entry=$(2) \ -T $(pbl-lds) \ --whole-archive $(BAREBOX_PBL_OBJS) $(obj)/piggy.o \ $(obj)/sha_sum.o |