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authorAlexandre Oliva <aoliva@redhat.com>2003-03-14 11:06:32 +0000
committerAlexandre Oliva <aoliva@redhat.com>2003-03-14 11:06:32 +0000
commit4abdb6ca3585d093710b1d9c0546c790a95d6b8d (patch)
tree4e8e0c14c063122943d296d1f6f45c1efa0716bf /sysdeps/mips
parentc44bf9aa9efd817dcc25d8a4969aaa8015b05984 (diff)
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* sysdeps/mips/sys/asm.h: Formatting changes. (PTR, PTRSIZE, PTRLOG): Adjust for all 3 ABIs. (CPADD): Define for all of them. (SETUP_GP, SETUP_GPX, SETUP_GPX_L, SAVE_GP, SETUP_GP64, SETUP_GPX64, SETUP_GPX64_L, RESTORE_GP64, USE_ALT_CP, NARGSAVE): Define per ABI spec. (END): Don't redefine. (LONG_SLL, LONG_SLLV, LONG_SRL, LONG_SRLV, LONG_SRA, LONG_SRAV): Remove duplicate definitions. (PTR_ADD, PTR_ADDI, PTR_ADDU, PTR_ADDIU, PTR_SUB, PTR_SUBI, PTR_SUBU, PTR_SUBIU, PTR_L, PTR_S, PTR_SLL, PTR_SLLV, PTR_SRL, PTR_SRLV, PTR_SRA, PTR_SRAV, PTR_SCALESHIFT): Define for n32. (PTR_LA): Define for all 3 ABIs.
* sysdeps/mips/sys/asm.h: Formatting changes. (PTR, PTRSIZE, PTRLOG): Adjust for all 3 ABIs. (CPADD): Define for all of them. (SETUP_GP, SETUP_GPX, SETUP_GPX_L, SAVE_GP, SETUP_GP64, SETUP_GPX64, SETUP_GPX64_L, RESTORE_GP64, USE_ALT_CP, NARGSAVE): Define per ABI spec. (END): Don't redefine. (LONG_SLL, LONG_SLLV, LONG_SRL, LONG_SRLV, LONG_SRA, LONG_SRAV): Remove duplicate definitions. (PTR_ADD, PTR_ADDI, PTR_ADDU, PTR_ADDIU, PTR_SUB, PTR_SUBI, PTR_SUBU, PTR_SUBIU, PTR_L, PTR_S, PTR_SLL, PTR_SLLV, PTR_SRL, PTR_SRLV, PTR_SRA, PTR_SRAV, PTR_SCALESHIFT): Define for n32. (PTR_LA): Define for all 3 ABIs.
Diffstat (limited to 'sysdeps/mips')
-rw-r--r--sysdeps/mips/sys/asm.h421
1 files changed, 258 insertions, 163 deletions
diff --git a/sysdeps/mips/sys/asm.h b/sysdeps/mips/sys/asm.h
index 1e5ea9a..0ebf561 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 */