mirror of
https://github.com/gnustep/libs-base.git
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5c31e5274d
git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@6466 72102866-910b-0410-8b05-ffd578937521
93 lines
2.5 KiB
Text
93 lines
2.5 KiB
Text
/* See ../README for copyright */
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#define MFRAME_STACK_STRUCT 0
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#define MFRAME_STRUCT_BYREF 1
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#define MFRAME_SMALL_STRUCT 0
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#define MFRAME_ARGS_SIZE 32
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#define MFRAME_RESULT_SIZE 16
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#define MFRAME_GET_STRUCT_ADDR(ARGS, TYPES) \
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((*(TYPES)==_C_STRUCT_B || *(TYPES)==_C_UNION_B || *(TYPES)==_C_ARY_B) ? \
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*(void**)((ARGS)->arg_regs+sizeof(void*)): (void*)0)
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#define MFRAME_SET_STRUCT_ADDR(ARGS, TYPES, ADDR) \
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({if (*(TYPES)==_C_STRUCT_B || *(TYPES)==_C_UNION_B || *(TYPES)==_C_ARY_B) \
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*(void**)((ARGS)->arg_regs+sizeof(void*)) = (ADDR);})
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#define IN_REGS 0
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#define ON_STACK 1
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struct sparc_args {
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int offsets[2]; /* 0 for args in regs, 1 for the rest of args on stack */
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int onStack;
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};
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#define MFRAME_ARGS struct sparc_args
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#define MFRAME_INIT_ARGS(CUM, RTYPE) \
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({ \
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(CUM).offsets[0] = 8; /* encoding in regs starts from 8 */ \
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(CUM).offsets[1] = 20; /* encoding on stack starts from 20 or 24 */ \
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(CUM).onStack = NO; \
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})
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#define GET_SPARC_ARG_LOCATION(CUM, CSTRING_TYPE, TYPESIZE) \
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((CUM).onStack \
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? ON_STACK \
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: ((CUM).offsets[IN_REGS] + TYPESIZE <= 6 * sizeof(int) + 8 \
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? (((CUM).offsets[IN_REGS] + TYPESIZE <= 6 * sizeof(int) + 4 \
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? 0 : ((CUM).offsets[ON_STACK] += 4)),\
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IN_REGS) \
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: ((CUM).onStack = YES, ON_STACK)))
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#define MFRAME_ARG_ENCODING(CUM, TYPE, STACK, DEST) \
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({ \
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const char* type = (TYPE); \
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int align = objc_alignof_type(type); \
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int size = objc_sizeof_type(type); \
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int locn = GET_SPARC_ARG_LOCATION(CUM, type, size); \
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\
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(CUM).offsets[locn] = ROUND((CUM).offsets[locn], align); \
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if (size < sizeof(int)) \
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{ \
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(CUM).offsets[locn] += sizeof(int) - ROUND(size, align); \
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} \
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(TYPE) = objc_skip_typespec(type); \
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if (locn == IN_REGS) \
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{ \
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sprintf((DEST), "%.*s+%d", (TYPE)-type, type, (CUM).offsets[locn]); \
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} \
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else \
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{ \
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sprintf((DEST), "%.*s%d", (TYPE)-type, type, (CUM).offsets[locn]); \
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} \
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if (*(TYPE) == '+') \
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{ \
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(TYPE)++; \
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} \
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if (*(TYPE) == '-') \
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{ \
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(TYPE)++; \
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} \
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while (isdigit(*(TYPE))) \
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{ \
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(TYPE)++; \
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} \
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(DEST)=&(DEST)[strlen(DEST)]; \
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if (locn == ON_STACK) \
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{ \
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if ((*type==_C_STRUCT_B || *type==_C_UNION_B || *type==_C_ARY_B)) \
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{ \
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(STACK) = (CUM).offsets[ON_STACK] + ROUND(size, align); \
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} \
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else \
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{ \
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(STACK) = (CUM).offsets[ON_STACK] + size; \
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} \
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} \
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(CUM).offsets[locn] += \
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size < sizeof(int) \
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? ROUND(size, align) \
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: ROUND(size, sizeof(void*)); \
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})
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