Add support for MIPS O32 FPXX and .MIPS.abiflags

	* elf/elf.h (PT_MIPS_ABIFLAGS): Define.
	(Elf_MIPS_ABIFlags_v0): New structure.
	(EF_MIPS_FP64): Define.
	(MIPS_AFL_REG_NONE, MIPS_AFL_REG_32, MIPS_AFL_REG_64): Likewise.
	(MIPS_AFL_REG_128, MIPS_AFL_ASE_DSP, MIPS_AFL_ASE_DSP64): Likewise.
	(MIPS_AFL_ASE_DSPR2, MIPS_AFL_ASE_EVA, MIPS_AFL_ASE_MCU): Likewise.
	(MIPS_AFL_ASE_MDMX, MIPS_AFL_ASE_MIPS3D, MIPS_AFL_ASE_MT): Likewise.
	(MIPS_AFL_ASE_SMARTMIPS, MIPS_AFL_ASE_VIRT): Likewise.
	(MIPS_AFL_ASE_VIRT64, MIPS_AFL_ASE_MSA, MIPS_AFL_ASE_MSA64): Likewise.
	(MIPS_AFL_ASE_MIPS16, MIPS_AFL_ASE_MICROMIPS): Likewise.
	(MIPS_AFL_ASE_XPA, MIPS_AFL_EXT_XLR, MIPS_AFL_EXT_OCTEON2): Likewise.
	(MIPS_AFL_EXT_OCTEONP, MIPS_AFL_EXT_LOONGSON_3A): Likewise.
	(MIPS_AFL_EXT_OCTEON, MIPS_AFL_EXT_5900, MIPS_AFL_EXT_4010): Likewise.
	(MIPS_AFL_EXT_4100, MIPS_AFL_EXT_3900, MIPS_AFL_EXT_10000): Likewise.
	(MIPS_AFL_EXT_SB1, MIPS_AFL_EXT_4111, MIPS_AFL_EXT_4120): Likewise.
	(MIPS_AFL_EXT_5400, MIPS_AFL_EXT_5500): Likewise.
	(MIPS_AFL_EXT_LOONGSON_2E, MIPS_AFL_EXT_LOONGSON_2F): Likewise.
	(Val_GNU_MIPS_ABI_FP_ANY, Val_GNU_MIPS_ABI_FP_DOUBLE): New enum values.
	(Val_GNU_MIPS_ABI_FP_SINGLE, Val_GNU_MIPS_ABI_FP_SOFT): Likewise.
	(Val_GNU_MIPS_ABI_FP_OLD_64, Val_GNU_MIPS_ABI_FP_XX): Likewise.
	(Val_GNU_MIPS_ABI_FP_64, Val_GNU_MIPS_ABI_FP_64A): Likewise.
	(Val_GNU_MIPS_ABI_FP_MAX): Likewise.
	* sysdeps/mips/Makefile [subdir=elf]: Add tst-abi-interlink,
	tst-mode-switch-1, tst-mode-switch-2, tst-mode-switch-3 tests.
	* sysdeps/mips/bits/linkmap.h (struct link_map_machine): Add fpmode
	field.
	* sysdeps/mips/dl-machine.h (elf_machine_matches_host): Reject
	EF_MIPS_FP64.
	* sysdeps/mips/dl-machine-reject-phdr.h: New file.
	* sysdeps/mips/tst-abi-fp32mod.c: Likewise.
	* sysdeps/mips/tst-abi-fpxxmod.c: Likewise.
	* sysdeps/mips/tst-abi-fpxxomod.c: Likewise.
	* sysdeps/mips/tst-abi-fp64mod.c: Likewise.
	* sysdeps/mips/tst-abi-fp64amod.c: Likewise.
	* sysdeps/mips/tst-abi-interlink.c: Likewise.
	* sysdeps/mips/tst-mode-switch-1.c: Likewise.
	* sysdeps/mips/tst-mode-switch-2.c: Likewise.
	* sysdeps/mips/tst-mode-switch-3.c: Likewise.
	* sysdeps/unix/sysv/linux/mips/configure.ac (o32-fpabi): Define to
	record the current FP ABI extension.
	(mips-mode-switch): Define to show if kernel headers support mode
	switching.
	* sysdeps/unix/sysv/linux/mips/configure: Regenerate.
	* sysdeps/unix/sysv/linux/mips/ldsodefs.h: Increase maximum
	supported SYSV ABI version to 3.
	* sysdeps/unix/sysv/linux/mips/libc-abis: Add new MIPS_O32_FP64
	feature.

1 files changed, 50 insertions, 0 deletions

diff --git a/sysdeps/mips/Makefile b/sysdeps/mips/Makefile
index a1526998e0..463b121758 100644
--- a/sysdeps/mips/Makefile
+++ b/sysdeps/mips/Makefile
@@ -26,3 +26,53 @@ CPPFLAGS-crtn.S += $(pic-ccflag)
 endif
 
 ASFLAGS-.os += $(pic-ccflag)
+
+ifeq ($(subdir),elf)
+ifneq ($(o32-fpabi),)
+tests += tst-abi-interlink
+
+fpabi-modules-names =
+fpabi_list =
+ifneq (,$(filter $(o32-fpabi),32 xx xxo))
+fpabi-modules-names += tst-abi-fp32mod
+CFLAGS-tst-abi-fp32mod.c += -mfp32
+endif
+ifneq (,$(filter $(o32-fpabi),xx))
+fpabi-modules-names += tst-abi-fpxxmod
+CFLAGS-tst-abi-fpxxmod.c += -mfpxx -mno-odd-spreg
+endif
+ifneq (,$(filter $(o32-fpabi),xx xxo))
+fpabi-modules-names += tst-abi-fpxxomod
+CFLAGS-tst-abi-fpxxomod.c += -mfpxx -modd-spreg
+endif
+ifneq (,$(filter $(o32-fpabi),xx 64a))
+fpabi-modules-names += tst-abi-fp64amod
+CFLAGS-tst-abi-fp64amod.c += -mfp64 -mno-odd-spreg
+endif
+ifneq (,$(filter $(o32-fpabi),xx xxo 64a 64))
+fpabi-modules-names += tst-abi-fp64mod
+CFLAGS-tst-abi-fp64mod.c += -mfp64 -modd-spreg
+endif
+modules-names += $(fpabi-modules-names)
+
+comma:=,
+empty:=
+space:=$(empty) $(empty)
+fpabi_list=$(subst $(space),$(comma),$(patsubst tst-abi-%mod,o_%,\
+				     $(fpabi-modules-names)))
+CPPFLAGS-tst-abi-interlink.c += -DFPABI_LIST=$(fpabi_list)
+CPPFLAGS-tst-abi-interlink.c += -DFPABI_COUNT=$(words $(fpabi-modules-names))
+CPPFLAGS-tst-abi-interlink.c += -DFPABI_NATIVE=o_fp$(o32-fpabi)
+$(objpfx)tst-abi-interlink: $(libdl)
+$(objpfx)tst-abi-interlink.out: $(patsubst %,$(objpfx)%.so,\
+					   $(fpabi-modules-names))
+endif
+
+ifeq ($(mips-mode-switch),yes)
+ifeq ($(o32-fpabi),xx)
+tests += tst-mode-switch-1 tst-mode-switch-2 tst-mode-switch-3
+$(objpfx)tst-mode-switch-1: $(shared-thread-library)
+$(objpfx)tst-mode-switch-2: $(shared-thread-library)
+endif
+endif
+endif