Excerpts from Nicholas Piggin's message of October 15, 2021 6:02 pm: > Excerpts from Christophe Leroy's message of October 15, 2021 4:24 pm: >> >> >> Le 15/10/2021 à 08:16, Nicholas Piggin a écrit : >>> Excerpts from Christophe Leroy's message of October 14, 2021 3:49 pm: >>>> Replace HAVE_DEREFERENCE_FUNCTION_DESCRIPTOR by >>>> HAVE_FUNCTION_DESCRIPTORS and use it instead of >>>> 'dereference_function_descriptor' macro to know >>>> whether an arch has function descriptors. >>>> >>>> To limit churn in one of the following patches, use >>>> an #ifdef/#else construct with empty first part >>>> instead of an #ifndef in asm-generic/sections.h >>> >>> Is it worth putting this into Kconfig if you're going to >>> change it? In any case >> >> That was what I wanted to do in the begining but how can I do that in >> Kconfig ? >> >> #ifdef __powerpc64__ >> #if defined(_CALL_ELF) && _CALL_ELF == 2 >> #define PPC64_ELF_ABI_v2 >> #else >> #define PPC64_ELF_ABI_v1 >> #endif >> #endif /* __powerpc64__ */ >> >> #ifdef PPC64_ELF_ABI_v1 >> #define HAVE_DEREFERENCE_FUNCTION_DESCRIPTOR 1 > > We have ELFv2 ABI / function descriptors iff big-endian so you could > just select based on that. Of course that should read ELFv1. To be clearer: BE is ELFv1 ABI and LE is ELFv2 ABI. Thanks, Nick
