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I'm trying to remove unused options from the `Analyses.def` file, then merge the rest of the useful options into the `AnalyzerOptions.def`. Then make sure one can set these by an `-analyzer-config XXX=YYY` style flag. Then surface the `-analyzer-config` to the `clang` frontend; After all of this, we can pursue the tablegen approach described https://discourse.llvm.org/t/rfc-tablegen-clang-static-analyzer-engine-options-for-better-documentation/61488 In this patch, I'm proposing flag deprecations. We should support deprecated analyzer flags for exactly one release. In this case I'm planning to drop this flag in `clang-16`. In the clang frontend, now we won't pass this option to the cc1 frontend, rather emit a warning diagnostic reminding the users about this deprecated flag, which will be turned into error in clang-16. Unfortunately, I had to remove all the tests referring to this flag, causing a mass change. I've also added a test for checking this warning. I've seen that `scan-build` also uses this flag, but I think we should remove that part only after we turn this into a hard error. Reviewed By: martong Differential Revision: https://reviews.llvm.org/D126215
22 lines
724 B
C
22 lines
724 B
C
// RUN: %clang_analyze_cc1 -triple gcc-linaro-arm-linux-gnueabihf -analyzer-checker=core,valist.Uninitialized,valist.CopyToSelf -analyzer-output=text -verify %s
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// expected-no-diagnostics
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typedef unsigned int size_t;
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typedef __builtin_va_list __gnuc_va_list;
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typedef __gnuc_va_list va_list;
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extern int vsprintf(char *__restrict __s,
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const char *__restrict __format, __gnuc_va_list
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__arg);
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void _dprintf(const char *function, int flen, int line, int level,
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const char *prefix, const char *fmt, ...) {
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char raw[10];
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int err;
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va_list ap;
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__builtin_va_start(ap, fmt);
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err = vsprintf(raw, fmt, ap);
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__builtin_va_end(ap);
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}
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