diff options
Diffstat (limited to 'sysdeps/mips')
| -rw-r--r-- | sysdeps/mips/sys/asm.h | 421 |
1 files changed, 258 insertions, 163 deletions
diff --git a/sysdeps/mips/sys/asm.h b/sysdeps/mips/sys/asm.h index 1e5ea9a9b7..0ebf561a15 100644 --- a/sysdeps/mips/sys/asm.h +++ b/sysdeps/mips/sys/asm.h @@ -1,4 +1,4 @@ -/* Copyright (C) 1997, 1998 Free Software Foundation, Inc. +/* Copyright (C) 1997, 1998, 2002, 2003 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Ralf Baechle <ralf@gnu.org>. @@ -23,12 +23,12 @@ #include <sgidefs.h> #ifndef CAT -#ifdef __STDC__ -#define __CAT(str1,str2) str1##str2 -#else -#define __CAT(str1,str2) str1/**/str2 -#endif -#define CAT(str1,str2) __CAT(str1,str2) +# ifdef __STDC__ +# define __CAT(str1,str2) str1##str2 +# else +# define __CAT(str1,str2) str1/**/str2 +# endif +# define CAT(str1,str2) __CAT(str1,str2) #endif /* @@ -37,25 +37,112 @@ * 64 bit address space isn't used yet, so we may use the R3000 32 bit * defines for now. */ -#define PTR .word -#define PTRSIZE 4 -#define PTRLOG 2 +#if (_MIPS_SIM == _MIPS_SIM_ABI32) || (_MIPS_SIM == _MIPS_SIM_NABI32) +# define PTR .word +# define PTRSIZE 4 +# define PTRLOG 2 +#elif (_MIPS_SIM == _MIPS_SIM_ABI64) +# define PTR .dword +# define PTRSIZE 8 +# define PTRLOG 3 +#endif /* * PIC specific declarations */ -#ifdef __PIC__ -#define CPRESTORE(register) \ +#if (_MIPS_SIM == _MIPS_SIM_ABI32) +# ifdef __PIC__ +# define CPRESTORE(register) \ .cprestore register -#define CPADD(register) \ +# define CPLOAD(register) \ + .cpload register +# else +# define CPRESTORE(register) +# define CPLOAD(register) +# endif + +# define CPADD(register) \ .cpadd register -#define CPLOAD(register) \ - .cpload register -#else -#define CPRESTORE(register) -#define CPADD(register) -#define CPLOAD(register) + +/* + * Set gp when at 1st instruction + */ +# define SETUP_GP \ + .set noreorder; \ + .cpload $25; \ + .set reorder +/* Set gp when not at 1st instruction */ +# define SETUP_GPX(r) \ + .set noreorder; \ + move r, $31; /* Save old ra. */ \ + bal 10f; /* Find addr of cpload. */ \ + nop; \ +10: \ + .cpload $31; \ + move $31, r; \ + .set reorder +# define SETUP_GPX_L(r, l) \ + .set noreorder; \ + move r, $31; /* Save old ra. */ \ + bal l; /* Find addr of cpload. */ \ + nop; \ +l: \ + .cpload $31; \ + move $31, r; \ + .set reorder +# define SAVE_GP(x) \ + .cprestore x /* Save gp trigger t9/jalr conversion. */ +# define SETUP_GP64(a, b) +# define SETUP_GPX64(a, b) +# define SETUP_GPX64_L(cp_reg, ra_save, l) +# define RESTORE_GP64 +# define USE_ALT_CP(a) +#else /* (_MIPS_SIM == _MIPS_SIM_ABI64) || (_MIPS_SIM == _MIPS_SIM_NABI32) */ +/* + * For callee-saved gp calling convention: + */ +# define SETUP_GP +# define SETUP_GPX(r) +# define SETUP_GPX_L(r, l) +# define SAVE_GP(x) + +# define SETUP_GP64(gpoffset, proc) \ + .cpsetup $25, gpoffset, proc +# define SETUP_GPX64(cp_reg, ra_save) \ + move ra_save, $31; /* Save old ra. */ \ + .set noreorder; \ + bal 10f; /* Find addr of .cpsetup. */ \ + nop; \ +10: \ + .set reorder; \ + .cpsetup $31, cp_reg, 10b; \ + move $31, ra_save +# define SETUP_GPX64_L(cp_reg, ra_save, l) \ + move ra_save, $31; /* Save old ra. */ \ + .set noreorder; \ + bal l; /* Find addr of .cpsetup. */ \ + nop; \ +l: \ + .set reorder; \ + .cpsetup $31, cp_reg, l; \ + move $31, ra_save +# define RESTORE_GP64 \ + .cpreturn +/* Use alternate register for context pointer. */ +# define USE_ALT_CP(reg) \ + .cplocal reg +#endif /* _MIPS_SIM != _MIPS_SIM_ABI32 */ + +/* + * Stack Frame Definitions + */ +#if (_MIPS_SIM == _MIPS_SIM_ABI32) +# define NARGSAVE 4 /* Space for 4 argument registers must be allocated. */ #endif +#if (_MIPS_SIM == _MIPS_SIM_ABI64 || _MIPS_SIM == _MIPS_SIM_NABI32) +# define NARGSAVE 0 /* No caller responsibilities. */ +#endif + /* * LEAF - declare leaf routine @@ -80,9 +167,11 @@ symbol: .frame sp, framesize, rpc /* * END - mark end of function */ -#define END(function) \ +#ifndef END +# define END(function) \ .end function; \ .size function,.-function +#endif /* * EXPORT - export definition of symbol @@ -142,54 +231,54 @@ symbol = value * is one of them. So we should have an option not to use this instruction. */ #if (_MIPS_ISA == _MIPS_ISA_MIPS4) || (_MIPS_ISA == _MIPS_ISA_MIPS5) -#define PREF(hint,addr) \ +# define PREF(hint,addr) \ pref hint,addr -#define PREFX(hint,addr) \ +# define PREFX(hint,addr) \ prefx hint,addr #else -#define PREF -#define PREFX +# define PREF +# define PREFX #endif /* * MIPS ISA IV/V movn/movz instructions and equivalents for older CPUs. */ #if _MIPS_ISA == _MIPS_ISA_MIPS1 -#define MOVN(rd,rs,rt) \ +# define MOVN(rd,rs,rt) \ .set push; \ .set reorder; \ - beqz rt,9f; \ - move rd,rs; \ + beqz rt,9f; \ + move rd,rs; \ .set pop; \ 9: -#define MOVZ(rd,rs,rt) \ +# define MOVZ(rd,rs,rt) \ .set push; \ .set reorder; \ - bnez rt,9f; \ - move rd,rt; \ + bnez rt,9f; \ + move rd,rt; \ .set pop; \ 9: #endif /* _MIPS_ISA == _MIPS_ISA_MIPS1 */ #if (_MIPS_ISA == _MIPS_ISA_MIPS2) || (_MIPS_ISA == _MIPS_ISA_MIPS3) -#define MOVN(rd,rs,rt) \ +# define MOVN(rd,rs,rt) \ .set push; \ .set noreorder; \ - bnezl rt,9f; \ - move rd,rs; \ + bnezl rt,9f; \ + move rd,rs; \ .set pop; \ 9: -#define MOVZ(rd,rs,rt) \ +# define MOVZ(rd,rs,rt) \ .set push; \ .set noreorder; \ - beqzl rt,9f; \ - movz rd,rs; \ + beqzl rt,9f; \ + movz rd,rs; \ .set pop; \ 9: #endif /* (_MIPS_ISA == _MIPS_ISA_MIPS2) || (_MIPS_ISA == _MIPS_ISA_MIPS3) */ #if (_MIPS_ISA == _MIPS_ISA_MIPS4) || (_MIPS_ISA == _MIPS_ISA_MIPS5) -#define MOVN(rd,rs,rt) \ +# define MOVN(rd,rs,rt) \ movn rd,rs,rt -#define MOVZ(rd,rs,rt) \ +# define MOVZ(rd,rs,rt) \ movz rd,rs,rt #endif /* (_MIPS_ISA == _MIPS_ISA_MIPS4) || (_MIPS_ISA == _MIPS_ISA_MIPS5) */ @@ -197,181 +286,187 @@ symbol = value * Stack alignment */ #if (_MIPS_ISA == _MIPS_ISA_MIPS1) || (_MIPS_ISA == _MIPS_ISA_MIPS2) -#define ALSZ 7 -#define ALMASK ~7 +# define ALSZ 7 +# define ALMASK ~7 #endif #if (_MIPS_ISA == _MIPS_ISA_MIPS3) || (_MIPS_ISA == _MIPS_ISA_MIPS4) || \ (_MIPS_ISA == _MIPS_ISA_MIPS5) -#define ALSZ 15 -#define ALMASK ~15 +# define ALSZ 15 +# define ALMASK ~15 #endif /* * Size of a register */ #ifdef __mips64 -#define SZREG 8 +# define SZREG 8 #else -#define SZREG 4 +# define SZREG 4 #endif /* * Use the following macros in assemblercode to load/store registers, * pointers etc. */ -#if (_MIPS_ISA == _MIPS_ISA_MIPS1) || (_MIPS_ISA == _MIPS_ISA_MIPS2) -#define REG_S sw -#define REG_L lw -#define PTR_SUBU subu -#define PTR_ADDU addu -#endif -#if (_MIPS_ISA == _MIPS_ISA_MIPS3) || (_MIPS_ISA == _MIPS_ISA_MIPS4) || \ - (_MIPS_ISA == _MIPS_ISA_MIPS5) -#define REG_S sd -#define REG_L ld -/* We still live in a 32 bit address space ... */ -#define PTR_SUBU subu -#define PTR_ADDU addu +#if (_MIPS_SIM == _MIPS_SIM_ABI32) +# define REG_S sw +# define REG_L lw +#else +# define REG_S sd +# define REG_L ld #endif /* * How to add/sub/load/store/shift C int variables. */ #if (_MIPS_SZINT == 32) -#define INT_ADD add -#define INT_ADDI addi -#define INT_ADDU addu -#define INT_ADDIU addiu -#define INT_SUB add -#define INT_SUBI subi -#define INT_SUBU subu -#define INT_SUBIU subu -#define INT_L lw -#define INT_S sw -#define LONG_SLL sll -#define LONG_SLLV sllv -#define LONG_SRL srl -#define LONG_SRLV srlv -#define LONG_SRA sra -#define LONG_SRAV srav +# define INT_ADD add +# define INT_ADDI addi +# define INT_ADDU addu +# define INT_ADDIU addiu +# define INT_SUB add +# define INT_SUBI subi +# define INT_SUBU subu +# define INT_SUBIU subu +# define INT_L lw +# define INT_S sw #endif #if (_MIPS_SZINT == 64) -#define INT_ADD dadd -#define INT_ADDI daddi -#define INT_ADDU daddu -#define INT_ADDIU daddiu -#define INT_SUB dadd -#define INT_SUBI dsubi -#define INT_SUBU dsubu -#define INT_SUBIU dsubu -#define INT_L ld -#define INT_S sd -#define LONG_SLL dsll -#define LONG_SLLV dsllv -#define LONG_SRL dsrl -#define LONG_SRLV dsrlv -#define LONG_SRA dsra -#define LONG_SRAV dsrav +# define INT_ADD dadd +# define INT_ADDI daddi +# define INT_ADDU daddu +# define INT_ADDIU daddiu +# define INT_SUB dadd +# define INT_SUBI dsubi +# define INT_SUBU dsubu +# define INT_SUBIU dsubu +# define INT_L ld +# define INT_S sd #endif /* * How to add/sub/load/store/shift C long variables. */ #if (_MIPS_SZLONG == 32) -#define LONG_ADD add -#define LONG_ADDI addi -#define LONG_ADDU addu -#define LONG_ADDIU addiu -#define LONG_SUB add -#define LONG_SUBI subi -#define LONG_SUBU subu -#define LONG_SUBIU subu -#define LONG_L lw -#define LONG_S sw -#define LONG_SLL sll -#define LONG_SLLV sllv -#define LONG_SRL srl -#define LONG_SRLV srlv -#define LONG_SRA sra -#define LONG_SRAV srav +# define LONG_ADD add +# define LONG_ADDI addi +# define LONG_ADDU addu +# define LONG_ADDIU addiu +# define LONG_SUB add +# define LONG_SUBI subi +# define LONG_SUBU subu +# define LONG_SUBIU subu +# define LONG_L lw +# define LONG_S sw +# define LONG_SLL sll +# define LONG_SLLV sllv +# define LONG_SRL srl +# define LONG_SRLV srlv +# define LONG_SRA sra +# define LONG_SRAV srav #endif #if (_MIPS_SZLONG == 64) -#define LONG_ADD dadd -#define LONG_ADDI daddi -#define LONG_ADDU daddu -#define LONG_ADDIU daddiu -#define LONG_SUB dadd -#define LONG_SUBI dsubi -#define LONG_SUBU dsubu -#define LONG_SUBIU dsubu -#define LONG_L ld -#define LONG_S sd -#define LONG_SLL dsll -#define LONG_SLLV dsllv -#define LONG_SRL dsrl -#define LONG_SRLV dsrlv -#define LONG_SRA dsra -#define LONG_SRAV dsrav +# define LONG_ADD dadd +# define LONG_ADDI daddi +# define LONG_ADDU daddu +# define LONG_ADDIU daddiu +# define LONG_SUB dadd +# define LONG_SUBI dsubi +# define LONG_SUBU dsubu +# define LONG_SUBIU dsubu +# define LONG_L ld +# define LONG_S sd +# define LONG_SLL dsll +# define LONG_SLLV dsllv +# define LONG_SRL dsrl +# define LONG_SRLV dsrlv +# define LONG_SRA dsra +# define LONG_SRAV dsrav #endif /* * How to add/sub/load/store/shift pointers. */ -#if (_MIPS_SZLONG == 32) -#define PTR_ADD add -#define PTR_ADDI addi -#define PTR_ADDU addu -#define PTR_ADDIU addiu -#define PTR_SUB add -#define PTR_SUBI subi -#define PTR_SUBU subu -#define PTR_SUBIU subu -#define PTR_L lw -#define PTR_S sw -#define PTR_SLL sll -#define PTR_SLLV sllv -#define PTR_SRL srl -#define PTR_SRLV srlv -#define PTR_SRA sra -#define PTR_SRAV srav - -#define PTR_SCALESHIFT 2 +#if (_MIPS_SIM == _MIPS_SIM_ABI32 && _MIPS_SZLONG == 32) +# define PTR_ADD add +# define PTR_ADDI addi +# define PTR_ADDU addu +# define PTR_ADDIU addiu +# define PTR_SUB add +# define PTR_SUBI subi +# define PTR_SUBU subu +# define PTR_SUBIU subu +# define PTR_L lw +# define PTR_LA la +# define PTR_S sw +# define PTR_SLL sll +# define PTR_SLLV sllv +# define PTR_SRL srl +# define PTR_SRLV srlv +# define PTR_SRA sra +# define PTR_SRAV srav + +# define PTR_SCALESHIFT 2 #endif -#if (_MIPS_SZLONG == 64) -#define PTR_ADD dadd -#define PTR_ADDI daddi -#define PTR_ADDU daddu -#define PTR_ADDIU daddiu -#define PTR_SUB dadd -#define PTR_SUBI dsubi -#define PTR_SUBU dsubu -#define PTR_SUBIU dsubu -#define PTR_L ld -#define PTR_S sd -#define PTR_SLL dsll -#define PTR_SLLV dsllv -#define PTR_SRL dsrl -#define PTR_SRLV dsrlv -#define PTR_SRA dsra -#define PTR_SRAV dsrav - -#define PTR_SCALESHIFT 3 +#if _MIPS_SIM == _MIPS_SIM_NABI32 +# define PTR_ADD add +# define PTR_ADDI addi +# define PTR_ADDU add /* no u */ +# define PTR_ADDIU addi /* no u */ +# define PTR_SUB add +# define PTR_SUBI subi +# define PTR_SUBU sub /* no u */ +# define PTR_SUBIU sub /* no u */ +# define PTR_L lw +# define PTR_LA la +# define PTR_S sw +# define PTR_SLL sll +# define PTR_SLLV sllv +# define PTR_SRL srl +# define PTR_SRLV srlv +# define PTR_SRA sra +# define PTR_SRAV srav + +# define PTR_SCALESHIFT 2 +#endif + +#if (_MIPS_SIM == _MIPS_SIM_ABI32 && _MIPS_SZLONG == 64) \ + || _MIPS_SIM == _MIPS_SIM_ABI64 +# define PTR_ADD dadd +# define PTR_ADDI daddi +# define PTR_ADDU daddu +# define PTR_ADDIU daddiu +# define PTR_SUB dadd +# define PTR_SUBI dsubi +# define PTR_SUBU dsubu +# define PTR_SUBIU dsubu +# define PTR_L ld +# define PTR_LA dla +# define PTR_S sd +# define PTR_SLL dsll +# define PTR_SLLV dsllv +# define PTR_SRL dsrl +# define PTR_SRLV dsrlv +# define PTR_SRA dsra +# define PTR_SRAV dsrav + +# define PTR_SCALESHIFT 3 #endif /* * Some cp0 registers were extended to 64bit for MIPS III. */ #if (_MIPS_ISA == _MIPS_ISA_MIPS1) || (_MIPS_ISA == _MIPS_ISA_MIPS2) -#define MFC0 mfc0 -#define MTC0 mtc0 +# define MFC0 mfc0 +# define MTC0 mtc0 #endif #if (_MIPS_ISA == _MIPS_ISA_MIPS3) || (_MIPS_ISA == _MIPS_ISA_MIPS4) || \ (_MIPS_ISA == _MIPS_ISA_MIPS5) -#define MFC0 dmfc0 -#define MTC0 dmtc0 +# define MFC0 dmfc0 +# define MTC0 dmtc0 #endif #endif /* sys/asm.h */ |