From: Fabrice Fontaine Date: Mon, 17 Aug 2020 17:02:28 +0000 (+0200) Subject: package/libunwind: fix build with gcc 10 X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=6f149e278a9daf07bf4a7a8a32c77ab01acf6d54;p=buildroot.git package/libunwind: fix build with gcc 10 Fixes: - http://autobuild.buildroot.org/results/dad61a90a27a97f275efd238ee22be704eab0063 Signed-off-by: Fabrice Fontaine Signed-off-by: Thomas Petazzoni --- diff --git a/package/libunwind/0003-Fix-compilation-with-fno-common.patch b/package/libunwind/0003-Fix-compilation-with-fno-common.patch new file mode 100644 index 0000000000..5ef2aeb324 --- /dev/null +++ b/package/libunwind/0003-Fix-compilation-with-fno-common.patch @@ -0,0 +1,445 @@ +From 29e17d8d2ccbca07c423e3089a6d5ae8a1c9cb6e Mon Sep 17 00:00:00 2001 +From: Yichao Yu +Date: Tue, 31 Mar 2020 00:43:32 -0400 +Subject: [PATCH] Fix compilation with -fno-common. + +Making all other archs consistent with IA64 which should not have this problem. +Also move the FIXME to the correct place. + +Also add some minimum comments about this... +[Retrieved from: +https://github.com/libunwind/libunwind/commit/29e17d8d2ccbca07c423e3089a6d5ae8a1c9cb6e] +Signed-off-by: Fabrice Fontaine +--- + src/aarch64/Ginit.c | 15 +++++++-------- + src/arm/Ginit.c | 15 +++++++-------- + src/coredump/_UPT_get_dyn_info_list_addr.c | 5 +++++ + src/hppa/Ginit.c | 15 +++++++-------- + src/ia64/Ginit.c | 1 + + src/mi/Gfind_dynamic_proc_info.c | 1 + + src/mips/Ginit.c | 15 +++++++-------- + src/ppc32/Ginit.c | 11 +++++++---- + src/ppc64/Ginit.c | 11 +++++++---- + src/ptrace/_UPT_get_dyn_info_list_addr.c | 5 +++++ + src/s390x/Ginit.c | 15 +++++++-------- + src/sh/Ginit.c | 15 +++++++-------- + src/tilegx/Ginit.c | 15 +++++++-------- + src/x86/Ginit.c | 15 +++++++-------- + src/x86_64/Ginit.c | 15 +++++++-------- + 15 files changed, 89 insertions(+), 80 deletions(-) + +diff --git a/src/aarch64/Ginit.c b/src/aarch64/Ginit.c +index dec235c82..35389762f 100644 +--- a/src/aarch64/Ginit.c ++++ b/src/aarch64/Ginit.c +@@ -61,13 +61,6 @@ tdep_uc_addr (unw_tdep_context_t *uc, int reg) + + # endif /* UNW_LOCAL_ONLY */ + +-HIDDEN unw_dyn_info_list_t _U_dyn_info_list; +- +-/* XXX fix me: there is currently no way to locate the dyn-info list +- by a remote unwinder. On ia64, this is done via a special +- unwind-table entry. Perhaps something similar can be done with +- DWARF2 unwind info. */ +- + static void + put_unwind_info (unw_addr_space_t as, unw_proc_info_t *proc_info, void *arg) + { +@@ -78,7 +71,13 @@ static int + get_dyn_info_list_addr (unw_addr_space_t as, unw_word_t *dyn_info_list_addr, + void *arg) + { +- *dyn_info_list_addr = (unw_word_t) &_U_dyn_info_list; ++#ifndef UNW_LOCAL_ONLY ++# pragma weak _U_dyn_info_list_addr ++ if (!_U_dyn_info_list_addr) ++ return -UNW_ENOINFO; ++#endif ++ // Access the `_U_dyn_info_list` from `LOCAL_ONLY` library, i.e. libunwind.so. ++ *dyn_info_list_addr = _U_dyn_info_list_addr (); + return 0; + } + +diff --git a/src/arm/Ginit.c b/src/arm/Ginit.c +index 2720d063a..0bac0d72d 100644 +--- a/src/arm/Ginit.c ++++ b/src/arm/Ginit.c +@@ -57,18 +57,17 @@ tdep_uc_addr (unw_tdep_context_t *uc, int reg) + + # endif /* UNW_LOCAL_ONLY */ + +-HIDDEN unw_dyn_info_list_t _U_dyn_info_list; +- +-/* XXX fix me: there is currently no way to locate the dyn-info list +- by a remote unwinder. On ia64, this is done via a special +- unwind-table entry. Perhaps something similar can be done with +- DWARF2 unwind info. */ +- + static int + get_dyn_info_list_addr (unw_addr_space_t as, unw_word_t *dyn_info_list_addr, + void *arg) + { +- *dyn_info_list_addr = (unw_word_t) &_U_dyn_info_list; ++#ifndef UNW_LOCAL_ONLY ++# pragma weak _U_dyn_info_list_addr ++ if (!_U_dyn_info_list_addr) ++ return -UNW_ENOINFO; ++#endif ++ // Access the `_U_dyn_info_list` from `LOCAL_ONLY` library, i.e. libunwind.so. ++ *dyn_info_list_addr = _U_dyn_info_list_addr (); + return 0; + } + +diff --git a/src/coredump/_UPT_get_dyn_info_list_addr.c b/src/coredump/_UPT_get_dyn_info_list_addr.c +index 0d1190556..739ed0569 100644 +--- a/src/coredump/_UPT_get_dyn_info_list_addr.c ++++ b/src/coredump/_UPT_get_dyn_info_list_addr.c +@@ -74,6 +74,11 @@ get_list_addr (unw_addr_space_t as, unw_word_t *dil_addr, void *arg, + + #else + ++/* XXX fix me: there is currently no way to locate the dyn-info list ++ by a remote unwinder. On ia64, this is done via a special ++ unwind-table entry. Perhaps something similar can be done with ++ DWARF2 unwind info. */ ++ + static inline int + get_list_addr (unw_addr_space_t as, unw_word_t *dil_addr, void *arg, + int *countp) +diff --git a/src/hppa/Ginit.c b/src/hppa/Ginit.c +index 461e4b93d..265455a68 100644 +--- a/src/hppa/Ginit.c ++++ b/src/hppa/Ginit.c +@@ -64,13 +64,6 @@ _Uhppa_uc_addr (ucontext_t *uc, int reg) + + # endif /* UNW_LOCAL_ONLY */ + +-HIDDEN unw_dyn_info_list_t _U_dyn_info_list; +- +-/* XXX fix me: there is currently no way to locate the dyn-info list +- by a remote unwinder. On ia64, this is done via a special +- unwind-table entry. Perhaps something similar can be done with +- DWARF2 unwind info. */ +- + static void + put_unwind_info (unw_addr_space_t as, unw_proc_info_t *proc_info, void *arg) + { +@@ -81,7 +74,13 @@ static int + get_dyn_info_list_addr (unw_addr_space_t as, unw_word_t *dyn_info_list_addr, + void *arg) + { +- *dyn_info_list_addr = (unw_word_t) &_U_dyn_info_list; ++#ifndef UNW_LOCAL_ONLY ++# pragma weak _U_dyn_info_list_addr ++ if (!_U_dyn_info_list_addr) ++ return -UNW_ENOINFO; ++#endif ++ // Access the `_U_dyn_info_list` from `LOCAL_ONLY` library, i.e. libunwind.so. ++ *dyn_info_list_addr = _U_dyn_info_list_addr (); + return 0; + } + +diff --git a/src/ia64/Ginit.c b/src/ia64/Ginit.c +index b09a2ad57..8601bb3ca 100644 +--- a/src/ia64/Ginit.c ++++ b/src/ia64/Ginit.c +@@ -68,6 +68,7 @@ get_dyn_info_list_addr (unw_addr_space_t as, unw_word_t *dyn_info_list_addr, + if (!_U_dyn_info_list_addr) + return -UNW_ENOINFO; + #endif ++ // Access the `_U_dyn_info_list` from `LOCAL_ONLY` library, i.e. libunwind.so. + *dyn_info_list_addr = _U_dyn_info_list_addr (); + return 0; + } +diff --git a/src/mi/Gfind_dynamic_proc_info.c b/src/mi/Gfind_dynamic_proc_info.c +index 98d350128..2e7c62e5e 100644 +--- a/src/mi/Gfind_dynamic_proc_info.c ++++ b/src/mi/Gfind_dynamic_proc_info.c +@@ -49,6 +49,7 @@ local_find_proc_info (unw_addr_space_t as, unw_word_t ip, unw_proc_info_t *pi, + return -UNW_ENOINFO; + #endif + ++ // Access the `_U_dyn_info_list` from `LOCAL_ONLY` library, i.e. libunwind.so. + list = (unw_dyn_info_list_t *) (uintptr_t) _U_dyn_info_list_addr (); + for (di = list->first; di; di = di->next) + if (ip >= di->start_ip && ip < di->end_ip) +diff --git a/src/mips/Ginit.c b/src/mips/Ginit.c +index 3df170c75..bf7a8f5a8 100644 +--- a/src/mips/Ginit.c ++++ b/src/mips/Ginit.c +@@ -69,13 +69,6 @@ tdep_uc_addr (ucontext_t *uc, int reg) + + # endif /* UNW_LOCAL_ONLY */ + +-HIDDEN unw_dyn_info_list_t _U_dyn_info_list; +- +-/* XXX fix me: there is currently no way to locate the dyn-info list +- by a remote unwinder. On ia64, this is done via a special +- unwind-table entry. Perhaps something similar can be done with +- DWARF2 unwind info. */ +- + static void + put_unwind_info (unw_addr_space_t as, unw_proc_info_t *proc_info, void *arg) + { +@@ -86,7 +79,13 @@ static int + get_dyn_info_list_addr (unw_addr_space_t as, unw_word_t *dyn_info_list_addr, + void *arg) + { +- *dyn_info_list_addr = (unw_word_t) (intptr_t) &_U_dyn_info_list; ++#ifndef UNW_LOCAL_ONLY ++# pragma weak _U_dyn_info_list_addr ++ if (!_U_dyn_info_list_addr) ++ return -UNW_ENOINFO; ++#endif ++ // Access the `_U_dyn_info_list` from `LOCAL_ONLY` library, i.e. libunwind.so. ++ *dyn_info_list_addr = _U_dyn_info_list_addr (); + return 0; + } + +diff --git a/src/ppc32/Ginit.c b/src/ppc32/Ginit.c +index ba302448a..7b4545580 100644 +--- a/src/ppc32/Ginit.c ++++ b/src/ppc32/Ginit.c +@@ -91,9 +91,6 @@ tdep_uc_addr (ucontext_t *uc, int reg) + + # endif /* UNW_LOCAL_ONLY */ + +-HIDDEN unw_dyn_info_list_t _U_dyn_info_list; +- +- + static void + put_unwind_info (unw_addr_space_t as, unw_proc_info_t *proc_info, void *arg) + { +@@ -104,7 +101,13 @@ static int + get_dyn_info_list_addr (unw_addr_space_t as, unw_word_t *dyn_info_list_addr, + void *arg) + { +- *dyn_info_list_addr = (unw_word_t) &_U_dyn_info_list; ++#ifndef UNW_LOCAL_ONLY ++# pragma weak _U_dyn_info_list_addr ++ if (!_U_dyn_info_list_addr) ++ return -UNW_ENOINFO; ++#endif ++ // Access the `_U_dyn_info_list` from `LOCAL_ONLY` library, i.e. libunwind.so. ++ *dyn_info_list_addr = _U_dyn_info_list_addr (); + return 0; + } + +diff --git a/src/ppc64/Ginit.c b/src/ppc64/Ginit.c +index 4c88cd6e7..7bfb395a7 100644 +--- a/src/ppc64/Ginit.c ++++ b/src/ppc64/Ginit.c +@@ -95,9 +95,6 @@ tdep_uc_addr (ucontext_t *uc, int reg) + + # endif /* UNW_LOCAL_ONLY */ + +-HIDDEN unw_dyn_info_list_t _U_dyn_info_list; +- +- + static void + put_unwind_info (unw_addr_space_t as, unw_proc_info_t *proc_info, void *arg) + { +@@ -108,7 +105,13 @@ static int + get_dyn_info_list_addr (unw_addr_space_t as, unw_word_t *dyn_info_list_addr, + void *arg) + { +- *dyn_info_list_addr = (unw_word_t) &_U_dyn_info_list; ++#ifndef UNW_LOCAL_ONLY ++# pragma weak _U_dyn_info_list_addr ++ if (!_U_dyn_info_list_addr) ++ return -UNW_ENOINFO; ++#endif ++ // Access the `_U_dyn_info_list` from `LOCAL_ONLY` library, i.e. libunwind.so. ++ *dyn_info_list_addr = _U_dyn_info_list_addr (); + return 0; + } + +diff --git a/src/ptrace/_UPT_get_dyn_info_list_addr.c b/src/ptrace/_UPT_get_dyn_info_list_addr.c +index cc5ed0441..16671d453 100644 +--- a/src/ptrace/_UPT_get_dyn_info_list_addr.c ++++ b/src/ptrace/_UPT_get_dyn_info_list_addr.c +@@ -71,6 +71,11 @@ get_list_addr (unw_addr_space_t as, unw_word_t *dil_addr, void *arg, + + #else + ++/* XXX fix me: there is currently no way to locate the dyn-info list ++ by a remote unwinder. On ia64, this is done via a special ++ unwind-table entry. Perhaps something similar can be done with ++ DWARF2 unwind info. */ ++ + static inline int + get_list_addr (unw_addr_space_t as, unw_word_t *dil_addr, void *arg, + int *countp) +diff --git a/src/s390x/Ginit.c b/src/s390x/Ginit.c +index f0886ac93..db01743c0 100644 +--- a/src/s390x/Ginit.c ++++ b/src/s390x/Ginit.c +@@ -50,8 +50,6 @@ static struct unw_addr_space local_addr_space; + + unw_addr_space_t unw_local_addr_space = &local_addr_space; + +-HIDDEN unw_dyn_info_list_t _U_dyn_info_list; +- + static inline void * + uc_addr (ucontext_t *uc, int reg) + { +@@ -75,11 +73,6 @@ tdep_uc_addr (ucontext_t *uc, int reg) + + # endif /* UNW_LOCAL_ONLY */ + +-/* XXX fix me: there is currently no way to locate the dyn-info list +- by a remote unwinder. On ia64, this is done via a special +- unwind-table entry. Perhaps something similar can be done with +- DWARF2 unwind info. */ +- + static void + put_unwind_info (unw_addr_space_t as, unw_proc_info_t *proc_info, void *arg) + { +@@ -90,7 +83,13 @@ static int + get_dyn_info_list_addr (unw_addr_space_t as, unw_word_t *dyn_info_list_addr, + void *arg) + { +- *dyn_info_list_addr = (unw_word_t) &_U_dyn_info_list; ++#ifndef UNW_LOCAL_ONLY ++# pragma weak _U_dyn_info_list_addr ++ if (!_U_dyn_info_list_addr) ++ return -UNW_ENOINFO; ++#endif ++ // Access the `_U_dyn_info_list` from `LOCAL_ONLY` library, i.e. libunwind.so. ++ *dyn_info_list_addr = _U_dyn_info_list_addr (); + return 0; + } + +diff --git a/src/sh/Ginit.c b/src/sh/Ginit.c +index 52988a721..9fe96d2bd 100644 +--- a/src/sh/Ginit.c ++++ b/src/sh/Ginit.c +@@ -58,13 +58,6 @@ tdep_uc_addr (ucontext_t *uc, int reg) + + # endif /* UNW_LOCAL_ONLY */ + +-HIDDEN unw_dyn_info_list_t _U_dyn_info_list; +- +-/* XXX fix me: there is currently no way to locate the dyn-info list +- by a remote unwinder. On ia64, this is done via a special +- unwind-table entry. Perhaps something similar can be done with +- DWARF2 unwind info. */ +- + static void + put_unwind_info (unw_addr_space_t as, unw_proc_info_t *proc_info, void *arg) + { +@@ -75,7 +68,13 @@ static int + get_dyn_info_list_addr (unw_addr_space_t as, unw_word_t *dyn_info_list_addr, + void *arg) + { +- *dyn_info_list_addr = (unw_word_t) &_U_dyn_info_list; ++#ifndef UNW_LOCAL_ONLY ++# pragma weak _U_dyn_info_list_addr ++ if (!_U_dyn_info_list_addr) ++ return -UNW_ENOINFO; ++#endif ++ // Access the `_U_dyn_info_list` from `LOCAL_ONLY` library, i.e. libunwind.so. ++ *dyn_info_list_addr = _U_dyn_info_list_addr (); + return 0; + } + +diff --git a/src/tilegx/Ginit.c b/src/tilegx/Ginit.c +index 7564a558b..925e64132 100644 +--- a/src/tilegx/Ginit.c ++++ b/src/tilegx/Ginit.c +@@ -64,13 +64,6 @@ tdep_uc_addr (ucontext_t *uc, int reg) + + # endif /* UNW_LOCAL_ONLY */ + +-HIDDEN unw_dyn_info_list_t _U_dyn_info_list; +- +-/* XXX fix me: there is currently no way to locate the dyn-info list +- by a remote unwinder. On ia64, this is done via a special +- unwind-table entry. Perhaps something similar can be done with +- DWARF2 unwind info. */ +- + static void + put_unwind_info (unw_addr_space_t as, unw_proc_info_t *proc_info, void *arg) + { +@@ -81,7 +74,13 @@ static int + get_dyn_info_list_addr (unw_addr_space_t as, unw_word_t *dyn_info_list_addr, + void *arg) + { +- *dyn_info_list_addr = (unw_word_t) (intptr_t) &_U_dyn_info_list; ++#ifndef UNW_LOCAL_ONLY ++# pragma weak _U_dyn_info_list_addr ++ if (!_U_dyn_info_list_addr) ++ return -UNW_ENOINFO; ++#endif ++ // Access the `_U_dyn_info_list` from `LOCAL_ONLY` library, i.e. libunwind.so. ++ *dyn_info_list_addr = _U_dyn_info_list_addr (); + return 0; + } + +diff --git a/src/x86/Ginit.c b/src/x86/Ginit.c +index f6b8dc27d..3cec74a21 100644 +--- a/src/x86/Ginit.c ++++ b/src/x86/Ginit.c +@@ -54,13 +54,6 @@ tdep_uc_addr (ucontext_t *uc, int reg) + + # endif /* UNW_LOCAL_ONLY */ + +-HIDDEN unw_dyn_info_list_t _U_dyn_info_list; +- +-/* XXX fix me: there is currently no way to locate the dyn-info list +- by a remote unwinder. On ia64, this is done via a special +- unwind-table entry. Perhaps something similar can be done with +- DWARF2 unwind info. */ +- + static void + put_unwind_info (unw_addr_space_t as, unw_proc_info_t *proc_info, void *arg) + { +@@ -71,7 +64,13 @@ static int + get_dyn_info_list_addr (unw_addr_space_t as, unw_word_t *dyn_info_list_addr, + void *arg) + { +- *dyn_info_list_addr = (unw_word_t) &_U_dyn_info_list; ++#ifndef UNW_LOCAL_ONLY ++# pragma weak _U_dyn_info_list_addr ++ if (!_U_dyn_info_list_addr) ++ return -UNW_ENOINFO; ++#endif ++ // Access the `_U_dyn_info_list` from `LOCAL_ONLY` library, i.e. libunwind.so. ++ *dyn_info_list_addr = _U_dyn_info_list_addr (); + return 0; + } + +diff --git a/src/x86_64/Ginit.c b/src/x86_64/Ginit.c +index a865d3385..fd8d418b1 100644 +--- a/src/x86_64/Ginit.c ++++ b/src/x86_64/Ginit.c +@@ -49,13 +49,6 @@ static struct unw_addr_space local_addr_space; + + unw_addr_space_t unw_local_addr_space = &local_addr_space; + +-HIDDEN unw_dyn_info_list_t _U_dyn_info_list; +- +-/* XXX fix me: there is currently no way to locate the dyn-info list +- by a remote unwinder. On ia64, this is done via a special +- unwind-table entry. Perhaps something similar can be done with +- DWARF2 unwind info. */ +- + static void + put_unwind_info (unw_addr_space_t as, unw_proc_info_t *proc_info, void *arg) + { +@@ -66,7 +59,13 @@ static int + get_dyn_info_list_addr (unw_addr_space_t as, unw_word_t *dyn_info_list_addr, + void *arg) + { +- *dyn_info_list_addr = (unw_word_t) &_U_dyn_info_list; ++#ifndef UNW_LOCAL_ONLY ++# pragma weak _U_dyn_info_list_addr ++ if (!_U_dyn_info_list_addr) ++ return -UNW_ENOINFO; ++#endif ++ // Access the `_U_dyn_info_list` from `LOCAL_ONLY` library, i.e. libunwind.so. ++ *dyn_info_list_addr = _U_dyn_info_list_addr (); + return 0; + } +