The aarch64 port builds gnumach as a static-PIE so the bootloader
can place it at any 2 MiB-aligned address in RAM (per the Linux
arm64 boot protocol). That introduces a handful of additional
linker-provided symbols (__rela_start, __rela_end, __bss_start,
__bss_end, _image_end, __text_start) plus a GOT reference
(_GLOBAL_OFFSET_TABLE_) which appear as undefined in gnumach.o
before the final link.
Add these to the undef-check filter so the aarch64 build no longer
fails the gnumach-undef-bad sanity check. On i386/x86_64 the
kernel doesn't reference any of these symbols, so the additional
filter entries are a no-op there.
---
Makefile.am | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/Makefile.am b/Makefile.am
index 6f21e55e..57e80ef4 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -175,12 +175,13 @@ noinst_PROGRAMS += \
# This is the list of routines we use from libgcc.
libgcc_routines := udivdi3 __udivdi3 __udivmoddi4 __umoddi3 __divdi3
__divmoddi4 __moddi3 __ffsdi2
# References generated by ld.
-ld_magic_routines := __rel_iplt_start __rel_iplt_end __rela_iplt_start
__rela_iplt_end _START etext _edata _end
+ld_magic_routines := __rel_iplt_start __rel_iplt_end __rela_iplt_start
__rela_iplt_end __rela_start __rela_end \
+ _START etext _edata _end __bss_start __bss_end _image_end __text_start
gnumach-undef: gnumach.$(OBJEXT)
$(NM_V) $(NM) -u $< | sed 's/ *U *//' | sort -u > $@
MOSTLYCLEANFILES += gnumach-undef
gnumach-undef-bad: gnumach-undef Makefile
- $(AM_V_GEN) sed '$(foreach r,$(libgcc_routines)
$(ld_magic_routines),/^$r$$/d;)' $< > $@
+ $(AM_V_GEN) sed '$(foreach r,$(libgcc_routines) $(ld_magic_routines)
_GLOBAL_OFFSET_TABLE_,/^$r$$/d;)' $< > $@
MOSTLYCLEANFILES += gnumach-undef-bad
libgcc-routines.o: gnumach-undef gnumach-undef-bad
$(AM_V_at) if test -s gnumach-undef-bad; \
--
2.54.0
