Drop fastcall attribute on variadic function#2975
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lwhsu wants to merge 3 commits intophp:masterfrom
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Eliminate "fastcall calling convention ignored on variadic function" warning when compiling on 32-bits system with clang
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I believe we should just drop the FASTCALL for this function entirely. Fastcall (as a callee-clean calling convention) just doesn't make sense for variadics. Other compilers are probably silently falling back to cdecl as well. E.g. GCC says "If the number of arguments is variable all arguments are pushed on the stack" in the fastcall documentation. |
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@nikic: That makes sense. I updated the patch. Do you want me to update the PR title and squash the commits? |
nikic
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Dec 13, 2017
| ZEND_API void ZEND_FASTCALL zend_hash_apply(HashTable *ht, apply_func_t apply_func); | ||
| ZEND_API void ZEND_FASTCALL zend_hash_apply_with_argument(HashTable *ht, apply_func_arg_t apply_func, void *); | ||
| ZEND_API void ZEND_FASTCALL zend_hash_apply_with_arguments(HashTable *ht, apply_func_args_t apply_func, int, ...); | ||
| ZEND_API void zend_hash_apply_with_arguments(HashTable *ht, apply_func_args_t apply_func, int, ...); |
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This also has to be changed in the zend_hash.c file, which still has the fastcall declaration.
lwhsu
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Merged as 72ec23d, thanks! |
cmb69
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Aug 13, 2024
This is unlikely to be properly supported by compilers anyway, see <php#2975>.
cmb69
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Aug 13, 2024
This is unlikely to be properly supported by compilers anyway, see <#2975>.
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Eliminate "fastcall calling convention ignored on variadic function"
warning when compiling on 32-bits system with clang