From cef03728234644b1a9ad5bd8e94daeac8650a71b Mon Sep 17 00:00:00 2001 From: Sergei Trofimovich Date: Thu, 7 Apr 2022 08:36:23 +0100 Subject: [PATCH] libgcc: IA64: don't compile glibc-based unwinder without libc headers In --without-headers mode gcc fails to bootstrap on libgcc as: /build/build/./gcc/xgcc -B/build/build/./gcc/ ... -Dinhibit_libc -c fde-glibc.c ../../../gcc-12-20220403/libgcc/config/ia64/fde-glibc.c:33:10: fatal error: stdlib.h: No such file or directory Most other linux targets are able to build the --without-headers compiler without additional effort. This change adds IA64 to the fold. The change drops part of the code that relies on DYNAMIC glibc section traversal for backtraces. Tested bootstrap of ia64-unknown-linux-gnu with and without libc headers present. libgcc/ * config/ia64/fde-glibc.c: Make a no-op in inhibit_libc mode. --- libgcc/config/ia64/fde-glibc.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/libgcc/config/ia64/fde-glibc.c b/libgcc/config/ia64/fde-glibc.c index 9caac2b..bd74847 100644 --- a/libgcc/config/ia64/fde-glibc.c +++ b/libgcc/config/ia64/fde-glibc.c @@ -29,6 +29,7 @@ #define _GNU_SOURCE 1 #endif #include "config.h" +#ifndef inhibit_libc #include #include #include @@ -159,3 +160,4 @@ _Unwind_FindTableEntry (void *pc, unw_word *segment_base, unw_word *gp, return data.ret; } +#endif -- 2.7.4