The compiler driver positions the linker script at the end of the linker
command-line, after crtend.o. As a result, any INPUT objects and archive
GROUPs introduced by the linker script are placed after crtend.o and the
end-of-frame marker provided by crtend.o ends up in between .eh_frames
instead of being at the end.
This has always been a problem, but a binutils update to clean-up
redundant NULL markers in .eh_frame exposes it as a execution failure in
exception-handling tests. This patch re-orders .eh_frames in all
MIPS linker scripts so that the one from crtend.o is always placed last.
libgloss/
* mips/array.ld: Re-order to place .eh_frame from crtend.o
after all other .eh_frame sections.
* mips/cfe.ld: Likewise.
* mips/ddb-kseg0.ld: Likewise.
* mips/ddb.ld: Likewise.
* mips/dve.ld: Likewise.
* mips/idt.ld: Likewise.
* mips/idt32.ld: Likewise.
* mips/idt64.ld: Likewise.
* mips/jmr3904app.ld: Likewise.
* mips/lsi.ld: Likewise.
* mips/mti32.ld: Likewise.
* mips/mti64.ld: Likewise.
* mips/mti64_64.ld: Likewise.
* mips/mti64_n32.ld: Likewise.
* mips/nullmon.ld: Likewise.
* mips/pmon.ld: Likewise.
* mips/sde32.ld: Likewise.
* mips/sde64.ld: Likewise.
* mips/crt0_cfe.S: New file.
* mips/cfe_mem.c: New file.
* mips/cfe_prestart.S: Remove.
* mips/cfe.ld: Adjust to use crt0_cfe.o as the startup file, and
and use _start as the entry point. Align BSS to 32-byte boundary.
* mips/cfe.c: Reimplement to fit on top of a crt0_cfe.o file.
* mips/cfe_api.h (__libcfe_stack_size, __libcfe_mem_limit)
(__libcfe_meminit, __libcfe_stack_top): New prototypes.
* mips/Makefile.in (CFEOBJS): Replace cfe_prestart.o with cfe_mem.o.
(cfe.o, cfe_api.o, cfe_mem.o, crt0_cfe.o): New targets.
* mips/configure.in: Build and install crt0_cfe.o when CFE support
is built.
* mips/configure: Regenerate.
* mips/Makefile.in (GENOBJS2): New variable to name other
commonly used objects.
(DVEOBJS, JMR3904OBJS): Reference GENOBJS2.
* mips/Makefile.in: Add support for Broadcom CFE firmware.
* mips/configure.in: (mipsisa32*-*-*, *): Likewise.
* mips/configure: Regenerate.
* mips/cfe.c: New file.
* mips/cfe.ld: New file.
* mips/cfe_api.c: New file.
* mips/cfe_api.h: New file.
* mips/cfe_api_int.h: New file.
* mips/cfe_error.h: New file.
* mips/cfe_prestart.S: New file.
Faraz Shahbazker
Jeff Johnston
Corinna Vinschen
Richard Sandiford
Thomas Fitzsimmons