Victor Kamensky 976c23af3e mips: vdso: add build time check that no 'jalr t9' calls left ... vdso shared object cannot have GOT based PIC 'jalr t9' calls because nobody set GOT table in vdso. Contributing into vdso .o files are compiled in PIC mode and as result for internal static functions calls compiler will generate 'jalr t9' instructions. Those are supposed to be converted into PC relative 'bal' calls by linker when relocation are processed. Mips global GOT entries do have dynamic relocations and they will be caught by cmd_vdso_check Makefile rule. Static PIC calls go through mips local GOT entries that do not have dynamic relocations. For those 'jalr t9' calls could be present but without dynamic relocations and they need to be converted to 'bal' calls by linker. Add additional build time check to make sure that no 'jalr t9' slip through because of some toolchain misconfiguration that prevents 'jalr t9' to 'bal' conversion. Signed-off-by: Victor Kamensky <kamensky@cisco.com> Signed-off-by: Paul Burton <paulburton@kernel.org> Cc: linux-mips@vger.kernel.org Cc: Ralf Baechle <ralf@linux-mips.org> Cc: James Hogan <jhogan@kernel.org> Cc: Vincenzo Frascino <vincenzo.frascino@arm.com> Cc: bruce.ashfield@gmail.com Cc: richard.purdie@linuxfoundation.org		2020-02-15 12:44:03 -08:00
..
.gitignore
config-n32-o32-env.c	mips: compat: vdso: Use legacy syscalls as fallback	2019-09-03 15:35:23 +01:00
elf.S	mips: Add support for generic vDSO	2019-07-25 21:45:05 -07:00
genvdso.c	mips/vdso: Support mremap() for vDSO	2020-01-15 10:44:14 -08:00
genvdso.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00
Makefile	mips: vdso: add build time check that no 'jalr t9' calls left	2020-02-15 12:44:03 -08:00
sigreturn.S	mips: Add support for generic vDSO	2019-07-25 21:45:05 -07:00
vdso.lds.S	mips: Add clock_gettime64 entry point	2019-07-25 21:45:52 -07:00
vgettimeofday.c	mips: Fix gettimeofday() in the vdso library	2019-12-02 10:50:37 -08:00