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PPC: Add initial powerpc le support.
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pcpa
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3f397228f5
commit
6e34a532ae
4 changed files with 57 additions and 10 deletions
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@ -1,3 +1,8 @@
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2014-11-20 Paulo Andrade <pcpa@gnu.org>
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* include/lightning/jit_ppc.h, lib/jit_ppc-cpu.c,
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lib/jit_ppc.c: Add initial powerpc le support.
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2014-11-20 Paulo Andrade <pcpa@gnu.org>
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* lib/jit_disasm.c: Change thumb or arm disassemble based on
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@ -23,6 +23,13 @@
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#define JIT_HASH_CONSTS 1
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#define JIT_NUM_OPERANDS 3
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#if __powerpc__
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# if _CALL_ELF == 2
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/* __BYTE_ORDER == __LITTLE_ENDIAN */
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# define ABI_ELFv2 1
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# endif
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#endif
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/*
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* Types
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*/
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@ -49,6 +49,7 @@
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# define _SP_REGNO 1
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# define _R2_REGNO 2
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# define _R11_REGNO 11
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# define _R12_REGNO 12
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# define _FP_REGNO 31
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# if __WORDSIZE == 32
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# define ldr(r0,r1) ldr_i(r0,r1)
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@ -325,8 +326,8 @@ static void _FXS(jit_state_t*,int,int,int,int,int,int,int);
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# define NOP() ORI(0,0,0)
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# define ORIS(d,a,u) FDu(25,a,d,u)
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# define RFI() FXL(19,0,0,50)
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# define RLWIMI(d,s,h,b,e) FM(20,s,a,h,b,e,0)
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# define RLWIMI_(d,s,h,b,e) FM(20,s,a,h,b,e,1)
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# define RLWIMI(d,s,h,b,e) FM(20,s,d,h,b,e,0)
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# define RLWIMI_(d,s,h,b,e) FM(20,s,d,h,b,e,1)
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# define INSLWI(a,s,n,b) RLWIMI(a,s,32-b,b,b+n-1)
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# define INSRWI(a,s,n,b) RLWIMI(a,s,32-(b+n),b,(b+n)-1)
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# define RLWINM(a,s,h,b,e) FM(21,s,a,h,b,e,0)
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@ -472,7 +473,8 @@ static jit_word_t _movi_p(jit_state_t*,jit_int32_t,jit_word_t);
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# if __BYTE_ORDER == __BIG_ENDIAN
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# define htonr(r0,r1) movr(r0,r1)
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# else
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# error need htonr implementation
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# define htonr(r0,r1) _htonr(_jit,r0,r1)
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static void _htonr(jit_state_t*,jit_int32_t,jit_int32_t);
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# endif
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# define addr(r0,r1,r2) ADD(r0,r1,r2)
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# define addi(r0,r1,i0) _addi(_jit,r0,r1,i0)
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@ -1044,6 +1046,35 @@ _movi_p(jit_state_t *_jit, jit_int32_t r0, jit_word_t i0)
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return (word);
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}
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# if __BYTE_ORDER == __LITTLE_ENDIAN
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static void
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_htonr(jit_state_t *_jit, jit_int32_t r0, jit_int32_t r1)
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{
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jit_int32_t reg;
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# if __WORDSIZE == 64
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jit_int32_t top;
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top = jit_get_reg(jit_class_gpr);
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rshi_u(rn(top), r1, 32);
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# endif
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reg = jit_get_reg(jit_class_gpr);
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ROTLWI(rn(reg), r1, 8);
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RLWIMI(rn(reg), r1, 24, 0, 7);
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RLWIMI(rn(reg), r1, 24, 16, 23);
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# if __WORDSIZE == 32
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CLRLDI(r0, rn(reg), 32);
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# else
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lshi(r0, rn(reg), 32);
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ROTLWI(rn(reg), rn(top), 8);
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RLWIMI(rn(reg), rn(top), 24, 0, 7);
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RLWIMI(rn(reg), rn(top), 24, 16, 23);
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orr(r0, r0, rn(reg));
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movr(r0, rn(top));
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jit_unget_reg(top);
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# endif
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jit_unget_reg(reg);
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}
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# endif
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static void
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_addi(jit_state_t *_jit, jit_int32_t r0, jit_int32_t r1, jit_word_t i0)
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{
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@ -3030,6 +3061,9 @@ static void
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_callr(jit_state_t *_jit, jit_int32_t r0)
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{
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# if __powerpc__
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# if ABI_ELFv2
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movr(_R12_REGNO, r0);
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# else
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stxi(sizeof(void*) * 5, _SP_REGNO, _R2_REGNO);
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/* FIXME Pretend to not know about r11? */
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if (r0 == _R0_REGNO) {
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@ -3042,12 +3076,13 @@ _callr(jit_state_t *_jit, jit_int32_t r0)
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ldxi(_R11_REGNO, r0, sizeof(void*) * 2);
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}
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ldr(r0, r0);
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# endif
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# endif
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MTCTR(r0);
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BCTRL();
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# if __powerpc__
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# if __powerpc__ && !ABI_ELFv2
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ldxi(_R2_REGNO, _SP_REGNO, sizeof(void*) * 5);
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# endif
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}
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@ -3219,7 +3254,7 @@ _patch_at(jit_state_t *_jit, jit_word_t instr, jit_word_t label)
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u.i[0] = (u.i[0] & ~0xfffd) | (d & 0xfffe);
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break;
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case 18: /* Bx */
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#if __powerpc__
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#if __powerpc__ && !ABI_ELFv2
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if (_jitc->jump && (!(u.i[0] & 1))) { /* jmpi label */
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/* zero is used for toc and env, so, quick check
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* if this is a "jmpi main" like initial jit
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@ -776,7 +776,7 @@ _emit_code(jit_state_t *_jit)
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undo.node = NULL;
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undo.patch_offset = 0;
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#if __powerpc__
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#if __powerpc__ && !ABI_ELFv2
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undo.prolog_offset = 0;
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for (node = _jitc->head; node; node = node->next)
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if (node->code != jit_code_label &&
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@ -1255,7 +1255,7 @@ _emit_code(jit_state_t *_jit)
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break;
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case jit_code_jmpi:
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if (node->flag & jit_flag_node) {
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#if __powerpc__
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#if __powerpc__ && !ABI_ELFv2
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if (_jit->pc.uc == _jit->code.ptr + sizeof(void*) * 3)
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_jitc->jump = 1;
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#endif
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@ -1292,12 +1292,12 @@ _emit_code(jit_state_t *_jit)
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undo.node = node;
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undo.word = _jit->pc.w;
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undo.patch_offset = _jitc->patches.offset;
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#if __powerpc__
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#if __powerpc__ && !ABI_ELFv2
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undo.prolog_offset = _jitc->prolog.offset;
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#endif
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restart_function:
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_jitc->again = 0;
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#if __powerpc__
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#if __powerpc__ && !ABI_ELFv2
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if (_jitc->jump && !_jitc->function->assume_frame) {
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/* remember prolog to hide offset adjustment for a jump
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* to the start of a function, what is expected to be
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@ -1332,7 +1332,7 @@ _emit_code(jit_state_t *_jit)
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node = undo.node;
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_jit->pc.w = undo.word;
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_jitc->patches.offset = undo.patch_offset;
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#if __powerpc__
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#if __powerpc__ && !ABI_ELFv2
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_jitc->prolog.offset = undo.prolog_offset;
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#endif
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goto restart_function;
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