| 1 | #ifndef __WARNING_H__ |
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| 2 | #define __WARNING_H__ |
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| 3 | |
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| 4 | #ifdef HAVE_GNU_LD |
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| 5 | # ifdef HAVE_ELF |
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| 6 | |
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| 7 | /* We want the .gnu.warning.SYMBOL section to be unallocated. */ |
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| 8 | # ifdef HAVE_ASM_PREVIOUS_DIRECTIVE |
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| 9 | # define __make_section_unallocated(section_string) \ |
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| 10 | asm(".section " section_string "\n .previous"); |
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| 11 | # elif defined (HAVE_ASM_POPSECTION_DIRECTIVE) |
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| 12 | # define __make_section_unallocated(section_string) \ |
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| 13 | asm(".pushsection " section_string "\n .popsection"); |
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| 14 | # else |
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| 15 | # define __make_section_unallocated(section_string) |
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| 16 | # endif |
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| 17 | |
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| 18 | # ifdef HAVE_SECTION_ATTRIBUTES |
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| 19 | # define link_warning(symbol, msg) \ |
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| 20 | static const char __evoke_link_warning_##symbol[] \ |
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| 21 | __attribute__ ((section (".gnu.warning." __SYMBOL_PREFIX #symbol), \ |
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| 22 | __used__)) = msg; |
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| 23 | # else |
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| 24 | # define link_warning(symbol, msg) |
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| 25 | # endif |
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| 26 | |
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| 27 | #else /* !ELF */ |
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| 28 | |
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| 29 | # define link_warning(symbol, msg) \ |
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| 30 | asm(".stabs \"" msg "\",30,0,0,0\n" \ |
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| 31 | ".stabs \"" __SYMBOL_PREFIX #symbol "\",1,0,0,0\n"); |
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| 32 | # endif |
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| 33 | #else /* !GNULD */ |
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| 34 | /* We will never be heard; they will all die horribly. */ |
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| 35 | # define link_warning(symbol, msg) |
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| 36 | #endif |
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| 37 | |
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| 38 | /* A canned warning for sysdeps/stub functions. |
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| 39 | The GNU linker prepends a "warning: " string. */ |
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| 40 | #define stub_warning(name) \ |
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| 41 | link_warning (name, \ |
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| 42 | #name " is not implemented and will always fail") |
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| 43 | |
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| 44 | #endif /* __WARNING_H__ */ |
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