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2021-09-04Use architecture-specific va_list typeMichael Forney
Previously, cproc effectively used used typedef struct { /* 32 bytes, 8-byte aligned */ } __builtin_va_list[1]; However, this is not quite correct for x86_64 nor aarch64, though it was close enough for both to work in most cases. In actuality, for x86_64 we want typedef struct { /* 24 bytes, 8-byte aligned */ } __builtin_va_list[1]; and for aarch64 we want typedef struct { /* 32 bytes, 8-byte aligned */ } __builtin_va_list; The difference only appears when the size of va_list matters, or when va_list is passed as a parameter. However, the former is not often the case, and the aarch64 ABI replaces aggregate arguments with pointers to caller-allocated memory, which is quite similar to arrays decaying to pointers in C except that the struct is not copied. Additionally, riscv64 simply uses typedef void *__builtin_va_list; which again has a different size and calling convention. To fix this, make the __builtin_va_list type architecture-specific and use architecture-specific tests for varargs-related functionality.
2019-07-03Implement no-op __builtin_expectMichael Forney
2019-04-17Merge map.h and tree.h into util.hMichael Forney
2019-04-17Just use a single mapkey functionMichael Forney
2019-04-17htab -> mapMichael Forney
2019-04-16Implement __builtin_types_compatible_pMichael Forney
This is used by util-linux.
2019-04-04Merge headers into cc.hMichael Forney
2019-03-14Abbreviate tag namesMichael Forney
2019-03-12Implement __builtin_constant_pMichael Forney
2019-03-12Sort built-insMichael Forney
2019-02-22Implement __builtin_nanf for empty string literalsMichael Forney
2019-02-22Implement __builtin_inffMichael Forney
2019-02-22Keep track of built-in kind in declarationMichael Forney
Also, populate filescope with builtins outside of main.
2019-02-12Initial importMichael Forney