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https://github.com/logicog/RTLPlayground.git
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bloqaudio
dcd3cd5a98
Compile selected firmware translation units unmodified under host gcc with AddressSanitizer and UBSan, force-including a shim header that erases the SDCC 8051 keywords, and link them against a mocked serial ring and console. A first suite covers the CLI line editor: line entry, backspace editing, and both long-input overflow cases (length cap and ring-pointer stall). The only firmware-source change is one #ifndef RTLP_HOST_TEST block in rtl837x_common.h grouping the libc-named prototypes (sleep/memcpy/memset/ strlen/strcpy/strcmp) so host builds take them from the C library instead; on-target builds are unaffected. Run with: make -C test
41 lines
1.4 KiB
C
41 lines
1.4 KiB
C
/*
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* sdcc_shim.h — neutralize SDCC 8051 keywords so firmware translation units
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* compile under host gcc/clang for off-target unit testing.
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*
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* Force-included (gcc -include) ahead of every firmware source under test.
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* It only erases storage/qualifier keywords and the banked-call attribute;
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* it does NOT change any logic, so the code under test is byte-for-byte the
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* firmware source. Hardware/register access is provided by mocks (support.c),
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* never by this file.
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*/
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#ifndef SDCC_SHIM_H
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#define SDCC_SHIM_H
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#include <stdbool.h>
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/* Memory-space qualifiers → nothing (host has one flat address space). */
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#define __xdata
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#define __code
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#define __pdata
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#define __idata
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#define __data
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/* bool, not unsigned char: SDCC's bit types normalize any assigned value
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* to 0/1, which _Bool reproduces exactly. */
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#define __bit bool
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#define __sbit bool
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/* NOTE: the firmware ships its own 8051 memcpy/memset/strlen/strcpy/sleep with
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* incompatible signatures (rtl837x_common.h). Host TUs must therefore build with
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* -fno-builtin (so gcc doesn't auto-declare the builtins) and must NOT include
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* <string.h>/<unistd.h>. Test code uses the t_* helpers in support.h instead. */
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/* Function attributes → nothing (no banking / no 8051 calling conventions). */
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#define __banked
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#define __reentrant
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#define __naked
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#define __using(n)
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#define __interrupt(n)
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#define __at(addr)
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#endif /* SDCC_SHIM_H */
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