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The tree's 3DS layer (the custom crt0 and link spec, system and memory setup, svchax, the old GPU command layer and the 3dsx/CIA launchers) lives under os/ctr, beside os/gekko and os/wiiu. The linear heap allocator is C: the same first-fit pool, so buffers land where they did, with live allocations found by address in an open-addressing table instead of a per-allocation tree node, and list nodes taken from cache-line-aligned slabs and reused. On the same trace it runs about half the instructions and practically no malloc/free calls. With the whole heap allocated, a further allocation now fails instead of starting the heap over and handing out its first address again, and the free-space queries no longer fault. samples/frontend/ctr_linear checks placement, alignment, coalescing, the full-heap case and pages handed back from the heap's end.
29 lines
952 B
C
29 lines
952 B
C
#ifndef _CTR_DEBUG_H__
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#define _CTR_DEBUG_H__
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#include <stdio.h>
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#include <3ds/types.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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void wait_for_input(void);
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void error_and_quit(const char* errorStr);
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void dump_result_value(Result val);
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#ifdef __cplusplus
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}
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#endif
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#define DEBUG_HOLD() do{printf("%s@%s:%d.\n",__FUNCTION__, __FILE__, __LINE__);fflush(stdout);wait_for_input();}while(0)
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#define DEBUG_LINE() do{printf("%s:%d.\n",__FUNCTION__, __LINE__);fflush(stdout);}while(0)
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#define DEBUG_STR(X) printf( "%s: %s\n", #X, (char*)(X))
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#define DEBUG_VAR(X) printf( "%-20s: 0x%08" PRIX32 "\n", #X, (uint32_t)(X))
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#define DEBUG_INT(X) printf( "%-20s: %10i\n", #X, (s32)(X))
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#define DEBUG_VAR64(X) printf( #X"\r\t\t\t\t : 0x%016llX\n", (u64)(X))
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#define DEBUG_ERROR(X) do{if(X)dump_result_value(X);}while(0)
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#define PRINTFPOS(X,Y) "\x1b["#X";"#Y"H"
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#define PRINTFPOS_STR(X,Y) "\x1b["X";"Y"H"
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#define PRINTF_LINE(X) "\x1b["X";0H"
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#endif /* _CTR_DEBUG_H__ */
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