/* Copyright (C) 1999, 2001, 2002, 2006 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. The GNU C Library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with the GNU C Library; if not, see <http://www.gnu.org/licenses/>. */ #include <common/sysdep.h> #include <sys/syscall.h> /* * Powerpc Feature masks for the Aux Vector Hardware Capabilities (AT_HWCAP). * This entry is copied to _dl_hwcap or rtld_global._dl_hwcap during startup. * The following must match the kernels linux/asm/cputable.h. */ #define PPC_FEATURE_32 0x80000000 /* 32-bit mode. */ #define PPC_FEATURE_64 0x40000000 /* 64-bit mode. */ #define PPC_FEATURE_601_INSTR 0x20000000 /* 601 chip, Old POWER ISA. */ #define PPC_FEATURE_HAS_ALTIVEC 0x10000000 /* SIMD/Vector Unit. */ #define PPC_FEATURE_HAS_FPU 0x08000000 /* Floating Point Unit. */ #define PPC_FEATURE_HAS_MMU 0x04000000 /* Memory Management Unit. */ #define PPC_FEATURE_HAS_4xxMAC 0x02000000 /* 4xx Multiply Accumulator. */ #define PPC_FEATURE_UNIFIED_CACHE 0x01000000 /* Unified I/D cache. */ #define PPC_FEATURE_HAS_SPE 0x00800000 /* Signal Processing ext. */ #define PPC_FEATURE_HAS_EFP_SINGLE 0x00400000 /* SPE Float. */ #define PPC_FEATURE_HAS_EFP_DOUBLE 0x00200000 /* SPE Double. */ #define PPC_FEATURE_NO_TB 0x00100000 /* 601/403gx have no timebase */ #define PPC_FEATURE_POWER4 0x00080000 /* POWER4 ISA 2.00 */ #define PPC_FEATURE_POWER5 0x00040000 /* POWER5 ISA 2.02 */ #define PPC_FEATURE_POWER5_PLUS 0x00020000 /* POWER5+ ISA 2.03 */ #define PPC_FEATURE_CELL_BE 0x00010000 /* CELL Broadband Engine */ #define PPC_FEATURE_BOOKE 0x00008000 #define PPC_FEATURE_SMT 0x00004000 /* Simultaneous Multi-Threading */ #define PPC_FEATURE_ICACHE_SNOOP 0x00002000 #define PPC_FEATURE_ARCH_2_05 0x00001000 /* ISA 2.05 */ #define PPC_FEATURE_PA6T 0x00000800 /* PA Semi 6T Core */ #define PPC_FEATURE_HAS_DFP 0x00000400 /* Decimal FP Unit */ #define PPC_FEATURE_POWER6_EXT 0x00000200 /* P6 + mffgpr/mftgpr */ #define PPC_FEATURE_ARCH_2_06 0x00000100 /* ISA 2.06 */ #define PPC_FEATURE_HAS_VSX 0x00000080 /* P7 Vector Extension. */ #define PPC_FEATURE_970 (PPC_FEATURE_POWER4 + PPC_FEATURE_HAS_ALTIVEC) #ifdef __ASSEMBLER__ /* Symbolic names for the registers. The only portable way to write asm code is to use number but this produces really unreadable code. Therefore these symbolic names. */ /* Integer registers. */ #define r0 0 #define r1 1 #define r2 2 #define r3 3 #define r4 4 #define r5 5 #define r6 6 #define r7 7 #define r8 8 #define r9 9 #define r10 10 #define r11 11 #define r12 12 #define r13 13 #define r14 14 #define r15 15 #define r16 16 #define r17 17 #define r18 18 #define r19 19 #define r20 20 #define r21 21 #define r22 22 #define r23 23 #define r24 24 #define r25 25 #define r26 26 #define r27 27 #define r28 28 #define r29 29 #define r30 30 #define r31 31 /* Floating-point registers. */ #define fp0 0 #define fp1 1 #define fp2 2 #define fp3 3 #define fp4 4 #define fp5 5 #define fp6 6 #define fp7 7 #define fp8 8 #define fp9 9 #define fp10 10 #define fp11 11 #define fp12 12 #define fp13 13 #define fp14 14 #define fp15 15 #define fp16 16 #define fp17 17 #define fp18 18 #define fp19 19 #define fp20 20 #define fp21 21 #define fp22 22 #define fp23 23 #define fp24 24 #define fp25 25 #define fp26 26 #define fp27 27 #define fp28 28 #define fp29 29 #define fp30 30 #define fp31 31 /* Condition code registers. */ #define cr0 0 #define cr1 1 #define cr2 2 #define cr3 3 #define cr4 4 #define cr5 5 #define cr6 6 #define cr7 7 /* Vector registers. */ #define v0 0 #define v1 1 #define v2 2 #define v3 3 #define v4 4 #define v5 5 #define v6 6 #define v7 7 #define v8 8 #define v9 9 #define v10 10 #define v11 11 #define v12 12 #define v13 13 #define v14 14 #define v15 15 #define v16 16 #define v17 17 #define v18 18 #define v19 19 #define v20 20 #define v21 21 #define v22 22 #define v23 23 #define v24 24 #define v25 25 #define v26 26 #define v27 27 #define v28 28 #define v29 29 #define v30 30 #define v31 31 #define VRSAVE 256 /* This seems to always be the case on PPC. */ #define ALIGNARG(log2) log2 /* For ELF we need the `.type' directive to make shared libs work right. */ #define ASM_TYPE_DIRECTIVE(name,typearg) .type name,typearg; #define ASM_SIZE_DIRECTIVE(name) .size name,.-name /* In ELF C symbols are asm symbols. */ #undef NO_UNDERSCORES #define NO_UNDERSCORES #define ENTRY(name) \ .globl C_SYMBOL_NAME(name); \ ASM_TYPE_DIRECTIVE (C_SYMBOL_NAME(name),@function) \ .align ALIGNARG(2); \ C_LABEL(name) \ cfi_startproc; \ #define EALIGN_W_0 /* No words to insert. */ #define EALIGN_W_1 nop #define EALIGN_W_2 nop;nop #define EALIGN_W_3 nop;nop;nop #define EALIGN_W_4 EALIGN_W_3;nop #define EALIGN_W_5 EALIGN_W_4;nop #define EALIGN_W_6 EALIGN_W_5;nop #define EALIGN_W_7 EALIGN_W_6;nop #define EALIGN(name, alignt, words) \ .globl C_SYMBOL_NAME(name); \ ASM_TYPE_DIRECTIVE (C_SYMBOL_NAME(name),@function) \ .align ALIGNARG(alignt); \ EALIGN_W_##words; \ C_LABEL(name) \ cfi_startproc; #undef END #define END(name) \ cfi_endproc; \ ASM_SIZE_DIRECTIVE(name) #define DO_CALL(syscall) \ li 0,syscall; \ sc #undef JUMPTARGET #ifdef PIC # define JUMPTARGET(name) name##@plt #else # define JUMPTARGET(name) name #endif #if defined SHARED && defined DO_VERSIONING && defined PIC \ && !defined NO_HIDDEN # undef HIDDEN_JUMPTARGET # define HIDDEN_JUMPTARGET(name) __GI_##name##@local #endif #define PSEUDO(name, syscall_name, args) \ .section ".text"; \ ENTRY (name) \ DO_CALL (SYS_ify (syscall_name)); #define PSEUDO_RET \ bnslr+; \ b __syscall_error@local #define ret PSEUDO_RET #undef PSEUDO_END #define PSEUDO_END(name) \ END (name) #define PSEUDO_NOERRNO(name, syscall_name, args) \ .section ".text"; \ ENTRY (name) \ DO_CALL (SYS_ify (syscall_name)); #define PSEUDO_RET_NOERRNO \ blr #define ret_NOERRNO PSEUDO_RET_NOERRNO #undef PSEUDO_END_NOERRNO #define PSEUDO_END_NOERRNO(name) \ END (name) #define PSEUDO_ERRVAL(name, syscall_name, args) \ .section ".text"; \ ENTRY (name) \ DO_CALL (SYS_ify (syscall_name)); #define PSEUDO_RET_ERRVAL \ blr #undef ret_ERRVAL #define ret_ERRVAL PSEUDO_RET_ERRVAL #undef PSEUDO_END_ERRVAL #define PSEUDO_END_ERRVAL(name) \ END (name) /* Local labels stripped out by the linker. */ #undef L #define L(x) .L##x /* Label in text section. */ #define C_TEXT(name) name #endif /* __ASSEMBLER__ */