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d561fbb041
This commit doesn't affect libc.so.6, its just housekeeping to prepare for adding explicit ISA level support. Because strcmp-sse2.S implements so many functions (more from avx2/evex/sse42) add a new file 'strcmp-naming.h' to assist in getting the correct symbol name for all the function across multiarch/non-multiarch builds. Tested build on x86_64 and x86_32 with/without multiarch.
69 lines
1.9 KiB
C
69 lines
1.9 KiB
C
#ifndef _STRCMP_NAMING_H_
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#define _STRCMP_NAMING_H_
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/* Utility macros. */
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#define STRCMP_SUFFIX(x, y) x##y
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#define STRCMP_NAME(x, y) STRCMP_SUFFIX (x, y)
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/* Setup base of all definitions. */
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#define STRNCASECMP_BASE __strncasecmp
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#define STRCASECMP_BASE __strcasecmp
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#define WCSCMP_BASE __wcscmp
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#if defined USE_MULTIARCH && IS_IN (libc)
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# define WCSNCMP_BASE __wcsncmp
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# define STRNCMP_BASE __strncmp
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# define STRCMP_BASE __strcmp
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#else
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/* Covers IS_IN (rtld) or non-multiarch build. */
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# define WCSNCMP_BASE wcsncmp
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# define STRNCMP_BASE strncmp
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# define STRCMP_BASE strcmp
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# undef STRCMP_ISA
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# define STRCMP_ISA
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#endif
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#if IS_IN (rtld) || defined USE_MULTIARCH
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# define ISA_HIDDEN_JUMPTARGET(...) __VA_ARGS__
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#else
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# define ISA_HIDDEN_JUMPTARGET(...) HIDDEN_JUMPTARGET (__VA_ARGS__)
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#endif
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/* Get correct symbol for OVERFLOW_STRCMP, STRCMP, and
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STRCASECMP. */
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#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
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# if defined USE_AS_WCSCMP || defined USE_AS_WCSNCMP
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# define OVERFLOW_STRCMP_SYM WCSCMP_BASE
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# define STRCMP_SYM WCSNCMP_BASE
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# elif defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
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# define OVERFLOW_STRCMP_SYM STRCMP_NAME (STRCASECMP_BASE, _l)
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# define STRCMP_SYM STRCMP_NAME (STRNCASECMP_BASE, _l)
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# else
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# define OVERFLOW_STRCMP_SYM STRCMP_BASE
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# define STRCMP_SYM STRNCMP_BASE
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# endif
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# define STRCASECMP_SYM STRNCASECMP_BASE
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# define OVERFLOW_STRCMP \
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ISA_HIDDEN_JUMPTARGET (STRCMP_NAME (OVERFLOW_STRCMP_SYM, STRCMP_ISA))
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#else
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# ifdef USE_AS_WCSCMP
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# define STRCMP_SYM WCSCMP_BASE
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# elif defined USE_AS_STRCASECMP_L
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# define STRCMP_SYM STRCMP_NAME (STRCASECMP_BASE, _l)
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# else
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# define STRCMP_SYM STRCMP_BASE
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# endif
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# define STRCASECMP_SYM STRCASECMP_BASE
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#endif
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#define STRCASECMP_L_NONASCII STRCMP_NAME (STRCASECMP_SYM, _l_nonascii)
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#define STRCASECMP STRCMP_NAME (STRCASECMP_SYM, STRCMP_ISA)
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#define STRCMP STRCMP_NAME (STRCMP_SYM, STRCMP_ISA)
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#endif
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