mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-12-15 06:55:13 +08:00
e737547eab
Enable the 'muhu' instruction, complementing the existing 'mulu', needed to implement a MIPS32 BPF JIT. Also fix a typo in the existing definition of 'dmulu'. Signed-off-by: Tony Ambardar <Tony.Ambardar@gmail.com> Signed-off-by: Johan Almbladh <johan.almbladh@anyfinetworks.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20211005165408.2305108-2-johan.almbladh@anyfinetworks.com
645 lines
14 KiB
C
645 lines
14 KiB
C
/*
|
|
* This file is subject to the terms and conditions of the GNU General Public
|
|
* License. See the file "COPYING" in the main directory of this archive
|
|
* for more details.
|
|
*
|
|
* A small micro-assembler. It is intentionally kept simple, does only
|
|
* support a subset of instructions, and does not try to hide pipeline
|
|
* effects like branch delay slots.
|
|
*
|
|
* Copyright (C) 2004, 2005, 2006, 2008 Thiemo Seufer
|
|
* Copyright (C) 2005, 2007 Maciej W. Rozycki
|
|
* Copyright (C) 2006 Ralf Baechle (ralf@linux-mips.org)
|
|
* Copyright (C) 2012, 2013 MIPS Technologies, Inc. All rights reserved.
|
|
*/
|
|
|
|
enum fields {
|
|
RS = 0x001,
|
|
RT = 0x002,
|
|
RD = 0x004,
|
|
RE = 0x008,
|
|
SIMM = 0x010,
|
|
UIMM = 0x020,
|
|
BIMM = 0x040,
|
|
JIMM = 0x080,
|
|
FUNC = 0x100,
|
|
SET = 0x200,
|
|
SCIMM = 0x400,
|
|
SIMM9 = 0x800,
|
|
};
|
|
|
|
#define OP_MASK 0x3f
|
|
#define OP_SH 26
|
|
#define RD_MASK 0x1f
|
|
#define RD_SH 11
|
|
#define RE_MASK 0x1f
|
|
#define RE_SH 6
|
|
#define IMM_MASK 0xffff
|
|
#define IMM_SH 0
|
|
#define JIMM_MASK 0x3ffffff
|
|
#define JIMM_SH 0
|
|
#define FUNC_MASK 0x3f
|
|
#define FUNC_SH 0
|
|
#define SET_MASK 0x7
|
|
#define SET_SH 0
|
|
#define SIMM9_SH 7
|
|
#define SIMM9_MASK 0x1ff
|
|
|
|
enum opcode {
|
|
insn_addiu, insn_addu, insn_and, insn_andi, insn_bbit0, insn_bbit1,
|
|
insn_beq, insn_beql, insn_bgez, insn_bgezl, insn_bgtz, insn_blez,
|
|
insn_bltz, insn_bltzl, insn_bne, insn_break, insn_cache, insn_cfc1,
|
|
insn_cfcmsa, insn_ctc1, insn_ctcmsa, insn_daddiu, insn_daddu, insn_ddivu,
|
|
insn_ddivu_r6, insn_di, insn_dins, insn_dinsm, insn_dinsu, insn_divu,
|
|
insn_divu_r6, insn_dmfc0, insn_dmodu, insn_dmtc0, insn_dmultu,
|
|
insn_dmulu, insn_drotr, insn_drotr32, insn_dsbh, insn_dshd, insn_dsll,
|
|
insn_dsll32, insn_dsllv, insn_dsra, insn_dsra32, insn_dsrav, insn_dsrl,
|
|
insn_dsrl32, insn_dsrlv, insn_dsubu, insn_eret, insn_ext, insn_ins,
|
|
insn_j, insn_jal, insn_jalr, insn_jr, insn_lb, insn_lbu, insn_ld,
|
|
insn_lddir, insn_ldpte, insn_ldx, insn_lh, insn_lhu, insn_ll, insn_lld,
|
|
insn_lui, insn_lw, insn_lwu, insn_lwx, insn_mfc0, insn_mfhc0, insn_mfhi,
|
|
insn_mflo, insn_modu, insn_movn, insn_movz, insn_mtc0, insn_mthc0,
|
|
insn_mthi, insn_mtlo, insn_mul, insn_multu, insn_mulu, insn_muhu, insn_nor,
|
|
insn_or, insn_ori, insn_pref, insn_rfe, insn_rotr, insn_sb, insn_sc,
|
|
insn_scd, insn_seleqz, insn_selnez, insn_sd, insn_sh, insn_sll,
|
|
insn_sllv, insn_slt, insn_slti, insn_sltiu, insn_sltu, insn_sra,
|
|
insn_srav, insn_srl, insn_srlv, insn_subu, insn_sw, insn_sync,
|
|
insn_syscall, insn_tlbp, insn_tlbr, insn_tlbwi, insn_tlbwr, insn_wait,
|
|
insn_wsbh, insn_xor, insn_xori, insn_yield,
|
|
insn_invalid /* insn_invalid must be last */
|
|
};
|
|
|
|
struct insn {
|
|
u32 match;
|
|
enum fields fields;
|
|
};
|
|
|
|
static inline u32 build_rs(u32 arg)
|
|
{
|
|
WARN(arg & ~RS_MASK, KERN_WARNING "Micro-assembler field overflow\n");
|
|
|
|
return (arg & RS_MASK) << RS_SH;
|
|
}
|
|
|
|
static inline u32 build_rt(u32 arg)
|
|
{
|
|
WARN(arg & ~RT_MASK, KERN_WARNING "Micro-assembler field overflow\n");
|
|
|
|
return (arg & RT_MASK) << RT_SH;
|
|
}
|
|
|
|
static inline u32 build_rd(u32 arg)
|
|
{
|
|
WARN(arg & ~RD_MASK, KERN_WARNING "Micro-assembler field overflow\n");
|
|
|
|
return (arg & RD_MASK) << RD_SH;
|
|
}
|
|
|
|
static inline u32 build_re(u32 arg)
|
|
{
|
|
WARN(arg & ~RE_MASK, KERN_WARNING "Micro-assembler field overflow\n");
|
|
|
|
return (arg & RE_MASK) << RE_SH;
|
|
}
|
|
|
|
static inline u32 build_simm(s32 arg)
|
|
{
|
|
WARN(arg > 0x7fff || arg < -0x8000,
|
|
KERN_WARNING "Micro-assembler field overflow\n");
|
|
|
|
return arg & 0xffff;
|
|
}
|
|
|
|
static inline u32 build_uimm(u32 arg)
|
|
{
|
|
WARN(arg & ~IMM_MASK, KERN_WARNING "Micro-assembler field overflow\n");
|
|
|
|
return arg & IMM_MASK;
|
|
}
|
|
|
|
static inline u32 build_scimm(u32 arg)
|
|
{
|
|
WARN(arg & ~SCIMM_MASK,
|
|
KERN_WARNING "Micro-assembler field overflow\n");
|
|
|
|
return (arg & SCIMM_MASK) << SCIMM_SH;
|
|
}
|
|
|
|
static inline u32 build_scimm9(s32 arg)
|
|
{
|
|
WARN((arg > 0xff || arg < -0x100),
|
|
KERN_WARNING "Micro-assembler field overflow\n");
|
|
|
|
return (arg & SIMM9_MASK) << SIMM9_SH;
|
|
}
|
|
|
|
static inline u32 build_func(u32 arg)
|
|
{
|
|
WARN(arg & ~FUNC_MASK, KERN_WARNING "Micro-assembler field overflow\n");
|
|
|
|
return arg & FUNC_MASK;
|
|
}
|
|
|
|
static inline u32 build_set(u32 arg)
|
|
{
|
|
WARN(arg & ~SET_MASK, KERN_WARNING "Micro-assembler field overflow\n");
|
|
|
|
return arg & SET_MASK;
|
|
}
|
|
|
|
static void build_insn(u32 **buf, enum opcode opc, ...);
|
|
|
|
#define I_u1u2u3(op) \
|
|
Ip_u1u2u3(op) \
|
|
{ \
|
|
build_insn(buf, insn##op, a, b, c); \
|
|
} \
|
|
UASM_EXPORT_SYMBOL(uasm_i##op);
|
|
|
|
#define I_s3s1s2(op) \
|
|
Ip_s3s1s2(op) \
|
|
{ \
|
|
build_insn(buf, insn##op, b, c, a); \
|
|
} \
|
|
UASM_EXPORT_SYMBOL(uasm_i##op);
|
|
|
|
#define I_u2u1u3(op) \
|
|
Ip_u2u1u3(op) \
|
|
{ \
|
|
build_insn(buf, insn##op, b, a, c); \
|
|
} \
|
|
UASM_EXPORT_SYMBOL(uasm_i##op);
|
|
|
|
#define I_u3u2u1(op) \
|
|
Ip_u3u2u1(op) \
|
|
{ \
|
|
build_insn(buf, insn##op, c, b, a); \
|
|
} \
|
|
UASM_EXPORT_SYMBOL(uasm_i##op);
|
|
|
|
#define I_u3u1u2(op) \
|
|
Ip_u3u1u2(op) \
|
|
{ \
|
|
build_insn(buf, insn##op, b, c, a); \
|
|
} \
|
|
UASM_EXPORT_SYMBOL(uasm_i##op);
|
|
|
|
#define I_u1u2s3(op) \
|
|
Ip_u1u2s3(op) \
|
|
{ \
|
|
build_insn(buf, insn##op, a, b, c); \
|
|
} \
|
|
UASM_EXPORT_SYMBOL(uasm_i##op);
|
|
|
|
#define I_u2s3u1(op) \
|
|
Ip_u2s3u1(op) \
|
|
{ \
|
|
build_insn(buf, insn##op, c, a, b); \
|
|
} \
|
|
UASM_EXPORT_SYMBOL(uasm_i##op);
|
|
|
|
#define I_u2u1s3(op) \
|
|
Ip_u2u1s3(op) \
|
|
{ \
|
|
build_insn(buf, insn##op, b, a, c); \
|
|
} \
|
|
UASM_EXPORT_SYMBOL(uasm_i##op);
|
|
|
|
#define I_u2u1msbu3(op) \
|
|
Ip_u2u1msbu3(op) \
|
|
{ \
|
|
build_insn(buf, insn##op, b, a, c+d-1, c); \
|
|
} \
|
|
UASM_EXPORT_SYMBOL(uasm_i##op);
|
|
|
|
#define I_u2u1msb32u3(op) \
|
|
Ip_u2u1msbu3(op) \
|
|
{ \
|
|
build_insn(buf, insn##op, b, a, c+d-33, c); \
|
|
} \
|
|
UASM_EXPORT_SYMBOL(uasm_i##op);
|
|
|
|
#define I_u2u1msb32msb3(op) \
|
|
Ip_u2u1msbu3(op) \
|
|
{ \
|
|
build_insn(buf, insn##op, b, a, c+d-33, c-32); \
|
|
} \
|
|
UASM_EXPORT_SYMBOL(uasm_i##op);
|
|
|
|
#define I_u2u1msbdu3(op) \
|
|
Ip_u2u1msbu3(op) \
|
|
{ \
|
|
build_insn(buf, insn##op, b, a, d-1, c); \
|
|
} \
|
|
UASM_EXPORT_SYMBOL(uasm_i##op);
|
|
|
|
#define I_u1u2(op) \
|
|
Ip_u1u2(op) \
|
|
{ \
|
|
build_insn(buf, insn##op, a, b); \
|
|
} \
|
|
UASM_EXPORT_SYMBOL(uasm_i##op);
|
|
|
|
#define I_u2u1(op) \
|
|
Ip_u1u2(op) \
|
|
{ \
|
|
build_insn(buf, insn##op, b, a); \
|
|
} \
|
|
UASM_EXPORT_SYMBOL(uasm_i##op);
|
|
|
|
#define I_u1s2(op) \
|
|
Ip_u1s2(op) \
|
|
{ \
|
|
build_insn(buf, insn##op, a, b); \
|
|
} \
|
|
UASM_EXPORT_SYMBOL(uasm_i##op);
|
|
|
|
#define I_u1(op) \
|
|
Ip_u1(op) \
|
|
{ \
|
|
build_insn(buf, insn##op, a); \
|
|
} \
|
|
UASM_EXPORT_SYMBOL(uasm_i##op);
|
|
|
|
#define I_0(op) \
|
|
Ip_0(op) \
|
|
{ \
|
|
build_insn(buf, insn##op); \
|
|
} \
|
|
UASM_EXPORT_SYMBOL(uasm_i##op);
|
|
|
|
I_u2u1s3(_addiu)
|
|
I_u3u1u2(_addu)
|
|
I_u2u1u3(_andi)
|
|
I_u3u1u2(_and)
|
|
I_u1u2s3(_beq)
|
|
I_u1u2s3(_beql)
|
|
I_u1s2(_bgez)
|
|
I_u1s2(_bgezl)
|
|
I_u1s2(_bgtz)
|
|
I_u1s2(_blez)
|
|
I_u1s2(_bltz)
|
|
I_u1s2(_bltzl)
|
|
I_u1u2s3(_bne)
|
|
I_u1(_break)
|
|
I_u2s3u1(_cache)
|
|
I_u1u2(_cfc1)
|
|
I_u2u1(_cfcmsa)
|
|
I_u1u2(_ctc1)
|
|
I_u2u1(_ctcmsa)
|
|
I_u1u2(_ddivu)
|
|
I_u3u1u2(_ddivu_r6)
|
|
I_u1u2u3(_dmfc0)
|
|
I_u3u1u2(_dmodu)
|
|
I_u1u2u3(_dmtc0)
|
|
I_u1u2(_dmultu)
|
|
I_u3u1u2(_dmulu)
|
|
I_u2u1s3(_daddiu)
|
|
I_u3u1u2(_daddu)
|
|
I_u1(_di);
|
|
I_u1u2(_divu)
|
|
I_u3u1u2(_divu_r6)
|
|
I_u2u1(_dsbh);
|
|
I_u2u1(_dshd);
|
|
I_u2u1u3(_dsll)
|
|
I_u2u1u3(_dsll32)
|
|
I_u3u2u1(_dsllv)
|
|
I_u2u1u3(_dsra)
|
|
I_u2u1u3(_dsra32)
|
|
I_u3u2u1(_dsrav)
|
|
I_u2u1u3(_dsrl)
|
|
I_u2u1u3(_dsrl32)
|
|
I_u3u2u1(_dsrlv)
|
|
I_u2u1u3(_drotr)
|
|
I_u2u1u3(_drotr32)
|
|
I_u3u1u2(_dsubu)
|
|
I_0(_eret)
|
|
I_u2u1msbdu3(_ext)
|
|
I_u2u1msbu3(_ins)
|
|
I_u1(_j)
|
|
I_u1(_jal)
|
|
I_u2u1(_jalr)
|
|
I_u1(_jr)
|
|
I_u2s3u1(_lb)
|
|
I_u2s3u1(_lbu)
|
|
I_u2s3u1(_ld)
|
|
I_u2s3u1(_lh)
|
|
I_u2s3u1(_lhu)
|
|
I_u2s3u1(_ll)
|
|
I_u2s3u1(_lld)
|
|
I_u1s2(_lui)
|
|
I_u2s3u1(_lw)
|
|
I_u2s3u1(_lwu)
|
|
I_u1u2u3(_mfc0)
|
|
I_u1u2u3(_mfhc0)
|
|
I_u3u1u2(_modu)
|
|
I_u3u1u2(_movn)
|
|
I_u3u1u2(_movz)
|
|
I_u1(_mfhi)
|
|
I_u1(_mflo)
|
|
I_u1u2u3(_mtc0)
|
|
I_u1u2u3(_mthc0)
|
|
I_u1(_mthi)
|
|
I_u1(_mtlo)
|
|
I_u3u1u2(_mul)
|
|
I_u1u2(_multu)
|
|
I_u3u1u2(_mulu)
|
|
I_u3u1u2(_muhu)
|
|
I_u3u1u2(_nor)
|
|
I_u3u1u2(_or)
|
|
I_u2u1u3(_ori)
|
|
I_0(_rfe)
|
|
I_u2s3u1(_sb)
|
|
I_u2s3u1(_sc)
|
|
I_u2s3u1(_scd)
|
|
I_u2s3u1(_sd)
|
|
I_u3u1u2(_seleqz)
|
|
I_u3u1u2(_selnez)
|
|
I_u2s3u1(_sh)
|
|
I_u2u1u3(_sll)
|
|
I_u3u2u1(_sllv)
|
|
I_s3s1s2(_slt)
|
|
I_u2u1s3(_slti)
|
|
I_u2u1s3(_sltiu)
|
|
I_u3u1u2(_sltu)
|
|
I_u2u1u3(_sra)
|
|
I_u3u2u1(_srav)
|
|
I_u2u1u3(_srl)
|
|
I_u3u2u1(_srlv)
|
|
I_u2u1u3(_rotr)
|
|
I_u3u1u2(_subu)
|
|
I_u2s3u1(_sw)
|
|
I_u1(_sync)
|
|
I_0(_tlbp)
|
|
I_0(_tlbr)
|
|
I_0(_tlbwi)
|
|
I_0(_tlbwr)
|
|
I_u1(_wait);
|
|
I_u2u1(_wsbh)
|
|
I_u3u1u2(_xor)
|
|
I_u2u1u3(_xori)
|
|
I_u2u1(_yield)
|
|
I_u2u1msbu3(_dins);
|
|
I_u2u1msb32u3(_dinsm);
|
|
I_u2u1msb32msb3(_dinsu);
|
|
I_u1(_syscall);
|
|
I_u1u2s3(_bbit0);
|
|
I_u1u2s3(_bbit1);
|
|
I_u3u1u2(_lwx)
|
|
I_u3u1u2(_ldx)
|
|
I_u1u2(_ldpte)
|
|
I_u2u1u3(_lddir)
|
|
|
|
#ifdef CONFIG_CPU_CAVIUM_OCTEON
|
|
#include <asm/octeon/octeon.h>
|
|
void uasm_i_pref(u32 **buf, unsigned int a, signed int b,
|
|
unsigned int c)
|
|
{
|
|
if (OCTEON_IS_MODEL(OCTEON_CN6XXX) && a <= 24 && a != 5)
|
|
/*
|
|
* As per erratum Core-14449, replace prefetches 0-4,
|
|
* 6-24 with 'pref 28'.
|
|
*/
|
|
build_insn(buf, insn_pref, c, 28, b);
|
|
else
|
|
build_insn(buf, insn_pref, c, a, b);
|
|
}
|
|
UASM_EXPORT_SYMBOL(uasm_i_pref);
|
|
#else
|
|
I_u2s3u1(_pref)
|
|
#endif
|
|
|
|
/* Handle labels. */
|
|
void uasm_build_label(struct uasm_label **lab, u32 *addr, int lid)
|
|
{
|
|
(*lab)->addr = addr;
|
|
(*lab)->lab = lid;
|
|
(*lab)++;
|
|
}
|
|
UASM_EXPORT_SYMBOL(uasm_build_label);
|
|
|
|
int uasm_in_compat_space_p(long addr)
|
|
{
|
|
/* Is this address in 32bit compat space? */
|
|
return addr == (int)addr;
|
|
}
|
|
UASM_EXPORT_SYMBOL(uasm_in_compat_space_p);
|
|
|
|
static int uasm_rel_highest(long val)
|
|
{
|
|
#ifdef CONFIG_64BIT
|
|
return ((((val + 0x800080008000L) >> 48) & 0xffff) ^ 0x8000) - 0x8000;
|
|
#else
|
|
return 0;
|
|
#endif
|
|
}
|
|
|
|
static int uasm_rel_higher(long val)
|
|
{
|
|
#ifdef CONFIG_64BIT
|
|
return ((((val + 0x80008000L) >> 32) & 0xffff) ^ 0x8000) - 0x8000;
|
|
#else
|
|
return 0;
|
|
#endif
|
|
}
|
|
|
|
int uasm_rel_hi(long val)
|
|
{
|
|
return ((((val + 0x8000L) >> 16) & 0xffff) ^ 0x8000) - 0x8000;
|
|
}
|
|
UASM_EXPORT_SYMBOL(uasm_rel_hi);
|
|
|
|
int uasm_rel_lo(long val)
|
|
{
|
|
return ((val & 0xffff) ^ 0x8000) - 0x8000;
|
|
}
|
|
UASM_EXPORT_SYMBOL(uasm_rel_lo);
|
|
|
|
void UASM_i_LA_mostly(u32 **buf, unsigned int rs, long addr)
|
|
{
|
|
if (!uasm_in_compat_space_p(addr)) {
|
|
uasm_i_lui(buf, rs, uasm_rel_highest(addr));
|
|
if (uasm_rel_higher(addr))
|
|
uasm_i_daddiu(buf, rs, rs, uasm_rel_higher(addr));
|
|
if (uasm_rel_hi(addr)) {
|
|
uasm_i_dsll(buf, rs, rs, 16);
|
|
uasm_i_daddiu(buf, rs, rs,
|
|
uasm_rel_hi(addr));
|
|
uasm_i_dsll(buf, rs, rs, 16);
|
|
} else
|
|
uasm_i_dsll32(buf, rs, rs, 0);
|
|
} else
|
|
uasm_i_lui(buf, rs, uasm_rel_hi(addr));
|
|
}
|
|
UASM_EXPORT_SYMBOL(UASM_i_LA_mostly);
|
|
|
|
void UASM_i_LA(u32 **buf, unsigned int rs, long addr)
|
|
{
|
|
UASM_i_LA_mostly(buf, rs, addr);
|
|
if (uasm_rel_lo(addr)) {
|
|
if (!uasm_in_compat_space_p(addr))
|
|
uasm_i_daddiu(buf, rs, rs,
|
|
uasm_rel_lo(addr));
|
|
else
|
|
uasm_i_addiu(buf, rs, rs,
|
|
uasm_rel_lo(addr));
|
|
}
|
|
}
|
|
UASM_EXPORT_SYMBOL(UASM_i_LA);
|
|
|
|
/* Handle relocations. */
|
|
void uasm_r_mips_pc16(struct uasm_reloc **rel, u32 *addr, int lid)
|
|
{
|
|
(*rel)->addr = addr;
|
|
(*rel)->type = R_MIPS_PC16;
|
|
(*rel)->lab = lid;
|
|
(*rel)++;
|
|
}
|
|
UASM_EXPORT_SYMBOL(uasm_r_mips_pc16);
|
|
|
|
static inline void __resolve_relocs(struct uasm_reloc *rel,
|
|
struct uasm_label *lab);
|
|
|
|
void uasm_resolve_relocs(struct uasm_reloc *rel,
|
|
struct uasm_label *lab)
|
|
{
|
|
struct uasm_label *l;
|
|
|
|
for (; rel->lab != UASM_LABEL_INVALID; rel++)
|
|
for (l = lab; l->lab != UASM_LABEL_INVALID; l++)
|
|
if (rel->lab == l->lab)
|
|
__resolve_relocs(rel, l);
|
|
}
|
|
UASM_EXPORT_SYMBOL(uasm_resolve_relocs);
|
|
|
|
void uasm_move_relocs(struct uasm_reloc *rel, u32 *first, u32 *end,
|
|
long off)
|
|
{
|
|
for (; rel->lab != UASM_LABEL_INVALID; rel++)
|
|
if (rel->addr >= first && rel->addr < end)
|
|
rel->addr += off;
|
|
}
|
|
UASM_EXPORT_SYMBOL(uasm_move_relocs);
|
|
|
|
void uasm_move_labels(struct uasm_label *lab, u32 *first, u32 *end,
|
|
long off)
|
|
{
|
|
for (; lab->lab != UASM_LABEL_INVALID; lab++)
|
|
if (lab->addr >= first && lab->addr < end)
|
|
lab->addr += off;
|
|
}
|
|
UASM_EXPORT_SYMBOL(uasm_move_labels);
|
|
|
|
void uasm_copy_handler(struct uasm_reloc *rel, struct uasm_label *lab,
|
|
u32 *first, u32 *end, u32 *target)
|
|
{
|
|
long off = (long)(target - first);
|
|
|
|
memcpy(target, first, (end - first) * sizeof(u32));
|
|
|
|
uasm_move_relocs(rel, first, end, off);
|
|
uasm_move_labels(lab, first, end, off);
|
|
}
|
|
UASM_EXPORT_SYMBOL(uasm_copy_handler);
|
|
|
|
int uasm_insn_has_bdelay(struct uasm_reloc *rel, u32 *addr)
|
|
{
|
|
for (; rel->lab != UASM_LABEL_INVALID; rel++) {
|
|
if (rel->addr == addr
|
|
&& (rel->type == R_MIPS_PC16
|
|
|| rel->type == R_MIPS_26))
|
|
return 1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
UASM_EXPORT_SYMBOL(uasm_insn_has_bdelay);
|
|
|
|
/* Convenience functions for labeled branches. */
|
|
void uasm_il_bltz(u32 **p, struct uasm_reloc **r, unsigned int reg,
|
|
int lid)
|
|
{
|
|
uasm_r_mips_pc16(r, *p, lid);
|
|
uasm_i_bltz(p, reg, 0);
|
|
}
|
|
UASM_EXPORT_SYMBOL(uasm_il_bltz);
|
|
|
|
void uasm_il_b(u32 **p, struct uasm_reloc **r, int lid)
|
|
{
|
|
uasm_r_mips_pc16(r, *p, lid);
|
|
uasm_i_b(p, 0);
|
|
}
|
|
UASM_EXPORT_SYMBOL(uasm_il_b);
|
|
|
|
void uasm_il_beq(u32 **p, struct uasm_reloc **r, unsigned int r1,
|
|
unsigned int r2, int lid)
|
|
{
|
|
uasm_r_mips_pc16(r, *p, lid);
|
|
uasm_i_beq(p, r1, r2, 0);
|
|
}
|
|
UASM_EXPORT_SYMBOL(uasm_il_beq);
|
|
|
|
void uasm_il_beqz(u32 **p, struct uasm_reloc **r, unsigned int reg,
|
|
int lid)
|
|
{
|
|
uasm_r_mips_pc16(r, *p, lid);
|
|
uasm_i_beqz(p, reg, 0);
|
|
}
|
|
UASM_EXPORT_SYMBOL(uasm_il_beqz);
|
|
|
|
void uasm_il_beqzl(u32 **p, struct uasm_reloc **r, unsigned int reg,
|
|
int lid)
|
|
{
|
|
uasm_r_mips_pc16(r, *p, lid);
|
|
uasm_i_beqzl(p, reg, 0);
|
|
}
|
|
UASM_EXPORT_SYMBOL(uasm_il_beqzl);
|
|
|
|
void uasm_il_bne(u32 **p, struct uasm_reloc **r, unsigned int reg1,
|
|
unsigned int reg2, int lid)
|
|
{
|
|
uasm_r_mips_pc16(r, *p, lid);
|
|
uasm_i_bne(p, reg1, reg2, 0);
|
|
}
|
|
UASM_EXPORT_SYMBOL(uasm_il_bne);
|
|
|
|
void uasm_il_bnez(u32 **p, struct uasm_reloc **r, unsigned int reg,
|
|
int lid)
|
|
{
|
|
uasm_r_mips_pc16(r, *p, lid);
|
|
uasm_i_bnez(p, reg, 0);
|
|
}
|
|
UASM_EXPORT_SYMBOL(uasm_il_bnez);
|
|
|
|
void uasm_il_bgezl(u32 **p, struct uasm_reloc **r, unsigned int reg,
|
|
int lid)
|
|
{
|
|
uasm_r_mips_pc16(r, *p, lid);
|
|
uasm_i_bgezl(p, reg, 0);
|
|
}
|
|
UASM_EXPORT_SYMBOL(uasm_il_bgezl);
|
|
|
|
void uasm_il_bgez(u32 **p, struct uasm_reloc **r, unsigned int reg,
|
|
int lid)
|
|
{
|
|
uasm_r_mips_pc16(r, *p, lid);
|
|
uasm_i_bgez(p, reg, 0);
|
|
}
|
|
UASM_EXPORT_SYMBOL(uasm_il_bgez);
|
|
|
|
void uasm_il_bbit0(u32 **p, struct uasm_reloc **r, unsigned int reg,
|
|
unsigned int bit, int lid)
|
|
{
|
|
uasm_r_mips_pc16(r, *p, lid);
|
|
uasm_i_bbit0(p, reg, bit, 0);
|
|
}
|
|
UASM_EXPORT_SYMBOL(uasm_il_bbit0);
|
|
|
|
void uasm_il_bbit1(u32 **p, struct uasm_reloc **r, unsigned int reg,
|
|
unsigned int bit, int lid)
|
|
{
|
|
uasm_r_mips_pc16(r, *p, lid);
|
|
uasm_i_bbit1(p, reg, bit, 0);
|
|
}
|
|
UASM_EXPORT_SYMBOL(uasm_il_bbit1);
|