From 0bd956720c457ff054325b48f26ac7c91cb060e8 Mon Sep 17 00:00:00 2001 From: Matthew Fortune Date: Sun, 1 Jun 2014 00:16:25 +0100 Subject: 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. --- elf/elf.h | 103 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++-- 1 file changed, 100 insertions(+), 3 deletions(-) (limited to 'elf') diff --git a/elf/elf.h b/elf/elf.h index 341cfa6..683224f 100644 --- a/elf/elf.h +++ b/elf/elf.h @@ -1383,6 +1383,7 @@ typedef struct #define EF_MIPS_64BIT_WHIRL 16 #define EF_MIPS_ABI2 32 #define EF_MIPS_ABI_ON32 64 +#define EF_MIPS_FP64 512 /* Uses FP64 (12 callee-saved). */ #define EF_MIPS_NAN2008 1024 /* Uses IEEE 754-2008 NaN encoding. */ #define EF_MIPS_ARCH 0xf0000000 /* MIPS architecture level. */ @@ -1631,9 +1632,10 @@ typedef struct /* Legal values for p_type field of Elf32_Phdr. */ -#define PT_MIPS_REGINFO 0x70000000 /* Register usage information */ -#define PT_MIPS_RTPROC 0x70000001 /* Runtime procedure table. */ -#define PT_MIPS_OPTIONS 0x70000002 +#define PT_MIPS_REGINFO 0x70000000 /* Register usage information. */ +#define PT_MIPS_RTPROC 0x70000001 /* Runtime procedure table. */ +#define PT_MIPS_OPTIONS 0x70000002 +#define PT_MIPS_ABIFLAGS 0x70000003 /* FP mode requirement. */ /* Special program header types. */ @@ -1755,6 +1757,101 @@ typedef struct typedef Elf32_Addr Elf32_Conflict; +typedef struct +{ + /* Version of flags structure. */ + Elf32_Half version; + /* The level of the ISA: 1-5, 32, 64. */ + unsigned char isa_level; + /* The revision of ISA: 0 for MIPS V and below, 1-n otherwise. */ + unsigned char isa_rev; + /* The size of general purpose registers. */ + unsigned char gpr_size; + /* The size of co-processor 1 registers. */ + unsigned char cpr1_size; + /* The size of co-processor 2 registers. */ + unsigned char cpr2_size; + /* The floating-point ABI. */ + unsigned char fp_abi; + /* Processor-specific extension. */ + Elf32_Word isa_ext; + /* Mask of ASEs used. */ + Elf32_Word ases; + /* Mask of general flags. */ + Elf32_Word flags1; + Elf32_Word flags2; +} Elf_MIPS_ABIFlags_v0; + +/* Values for the register size bytes of an abi flags structure. */ + +#define MIPS_AFL_REG_NONE 0x00 /* No registers. */ +#define MIPS_AFL_REG_32 0x01 /* 32-bit registers. */ +#define MIPS_AFL_REG_64 0x02 /* 64-bit registers. */ +#define MIPS_AFL_REG_128 0x03 /* 128-bit registers. */ + +/* Masks for the ases word of an ABI flags structure. */ + +#define MIPS_AFL_ASE_DSP 0x00000001 /* DSP ASE. */ +#define MIPS_AFL_ASE_DSPR2 0x00000002 /* DSP R2 ASE. */ +#define MIPS_AFL_ASE_EVA 0x00000004 /* Enhanced VA Scheme. */ +#define MIPS_AFL_ASE_MCU 0x00000008 /* MCU (MicroController) ASE. */ +#define MIPS_AFL_ASE_MDMX 0x00000010 /* MDMX ASE. */ +#define MIPS_AFL_ASE_MIPS3D 0x00000020 /* MIPS-3D ASE. */ +#define MIPS_AFL_ASE_MT 0x00000040 /* MT ASE. */ +#define MIPS_AFL_ASE_SMARTMIPS 0x00000080 /* SmartMIPS ASE. */ +#define MIPS_AFL_ASE_VIRT 0x00000100 /* VZ ASE. */ +#define MIPS_AFL_ASE_MSA 0x00000200 /* MSA ASE. */ +#define MIPS_AFL_ASE_MIPS16 0x00000400 /* MIPS16 ASE. */ +#define MIPS_AFL_ASE_MICROMIPS 0x00000800 /* MICROMIPS ASE. */ +#define MIPS_AFL_ASE_XPA 0x00001000 /* XPA ASE. */ +#define MIPS_AFL_ASE_MASK 0x00001fff /* All ASEs. */ + +/* Values for the isa_ext word of an ABI flags structure. */ + +#define MIPS_AFL_EXT_XLR 1 /* RMI Xlr instruction. */ +#define MIPS_AFL_EXT_OCTEON2 2 /* Cavium Networks Octeon2. */ +#define MIPS_AFL_EXT_OCTEONP 3 /* Cavium Networks OcteonP. */ +#define MIPS_AFL_EXT_LOONGSON_3A 4 /* Loongson 3A. */ +#define MIPS_AFL_EXT_OCTEON 5 /* Cavium Networks Octeon. */ +#define MIPS_AFL_EXT_5900 6 /* MIPS R5900 instruction. */ +#define MIPS_AFL_EXT_4650 7 /* MIPS R4650 instruction. */ +#define MIPS_AFL_EXT_4010 8 /* LSI R4010 instruction. */ +#define MIPS_AFL_EXT_4100 9 /* NEC VR4100 instruction. */ +#define MIPS_AFL_EXT_3900 10 /* Toshiba R3900 instruction. */ +#define MIPS_AFL_EXT_10000 11 /* MIPS R10000 instruction. */ +#define MIPS_AFL_EXT_SB1 12 /* Broadcom SB-1 instruction. */ +#define MIPS_AFL_EXT_4111 13 /* NEC VR4111/VR4181 instruction. */ +#define MIPS_AFL_EXT_4120 14 /* NEC VR4120 instruction. */ +#define MIPS_AFL_EXT_5400 15 /* NEC VR5400 instruction. */ +#define MIPS_AFL_EXT_5500 16 /* NEC VR5500 instruction. */ +#define MIPS_AFL_EXT_LOONGSON_2E 17 /* ST Microelectronics Loongson 2E. */ +#define MIPS_AFL_EXT_LOONGSON_2F 18 /* ST Microelectronics Loongson 2F. */ + +/* Masks for the flags1 word of an ABI flags structure. */ +#define MIPS_AFL_FLAGS1_ODDSPREG 1 /* Uses odd single-precision registers. */ + +/* Object attribute values. */ +enum +{ + /* Not tagged or not using any ABIs affected by the differences. */ + Val_GNU_MIPS_ABI_FP_ANY = 0, + /* Using hard-float -mdouble-float. */ + Val_GNU_MIPS_ABI_FP_DOUBLE = 1, + /* Using hard-float -msingle-float. */ + Val_GNU_MIPS_ABI_FP_SINGLE = 2, + /* Using soft-float. */ + Val_GNU_MIPS_ABI_FP_SOFT = 3, + /* Using -mips32r2 -mfp64. */ + Val_GNU_MIPS_ABI_FP_OLD_64 = 4, + /* Using -mfpxx. */ + Val_GNU_MIPS_ABI_FP_XX = 5, + /* Using -mips32r2 -mfp64. */ + Val_GNU_MIPS_ABI_FP_64 = 6, + /* Using -mips32r2 -mfp64 -mno-odd-spreg. */ + Val_GNU_MIPS_ABI_FP_64A = 7, + /* Maximum allocated FP ABI value. */ + Val_GNU_MIPS_ABI_FP_MAX = 7 +}; /* HPPA specific definitions. */ -- cgit v1.1