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| author | Richard Biener <rguenther@suse.de> | 2025-04-08 14:57:05 +0200 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2025-04-09 09:38:17 +0200 |
| commit | faff25435b0d23b2ac4deef5a9434c8cd098c0d2 (patch) | |
| tree | 5bbb7e6d42a4767814d8ba74e3fedb9f37b84497 | |
| parent | 2d7e1d6e40a13a5f160b584336795b80f193ec3b (diff) | |
| download | gcc-faff25435b0d23b2ac4deef5a9434c8cd098c0d2.zip gcc-faff25435b0d23b2ac4deef5a9434c8cd098c0d2.tar.gz gcc-faff25435b0d23b2ac4deef5a9434c8cd098c0d2.tar.bz2 | |
bootstrap/119680 - fix cross-compiler build with --enable-host-shared
It seems that at least when cross-compiling at least collect2 pulls
in objects from libbacktrace.a which is linked via LIBDEPS. But
libbacktrace for the host is only built -fPIC with --enable-host-shared
but not -fPIE with --enable-host-pie so this fails. The following
teaches libbacktrace about --enable-host-pie and handles it similar
to libcpp.
PR bootstrap/119680
libbacktrace/
* configure.ac (--enable-host-pie): Handle by setting PIC_FLAG
to -fPIE.
* configure: Regenerate.
| -rwxr-xr-x | libbacktrace/configure | 16 | ||||
| -rw-r--r-- | libbacktrace/configure.ac | 7 |
2 files changed, 18 insertions, 5 deletions
diff --git a/libbacktrace/configure b/libbacktrace/configure index 0ecdd3e..85be043 100755 --- a/libbacktrace/configure +++ b/libbacktrace/configure @@ -814,6 +814,7 @@ enable_largefile enable_cet enable_werror with_system_libunwind +enable_host_pie enable_host_shared ' ac_precious_vars='build_alias @@ -1464,6 +1465,7 @@ Optional Features: --disable-largefile omit support for large files --enable-cet enable Intel CET in target libraries [default=auto] --disable-werror disable building with -Werror + --enable-host-pie build host code as PIE --enable-host-shared build host code as shared libraries --enable-cet enable Intel CET in host libraries [default=auto] @@ -11634,7 +11636,7 @@ else lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2 lt_status=$lt_dlunknown cat > conftest.$ac_ext <<_LT_EOF -#line 11637 "configure" +#line 11639 "configure" #include "confdefs.h" #if HAVE_DLFCN_H @@ -11740,7 +11742,7 @@ else lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2 lt_status=$lt_dlunknown cat > conftest.$ac_ext <<_LT_EOF -#line 11743 "configure" +#line 11745 "configure" #include "confdefs.h" #if HAVE_DLFCN_H @@ -12518,12 +12520,18 @@ $as_echo "#define HAVE_GETIPINFO 1" >>confdefs.h fi fi +# Enable --enable-host-pie. +# Check whether --enable-host-pie was given. +if test "${enable_host_pie+set}" = set; then : + enableval=$enable_host_pie; PIC_FLAG=-fPIE +else + PIC_FLAG= +fi + # Enable --enable-host-shared. # Check whether --enable-host-shared was given. if test "${enable_host_shared+set}" = set; then : enableval=$enable_host_shared; PIC_FLAG=-fPIC -else - PIC_FLAG= fi diff --git a/libbacktrace/configure.ac b/libbacktrace/configure.ac index 75b3a75..6549cde 100644 --- a/libbacktrace/configure.ac +++ b/libbacktrace/configure.ac @@ -175,11 +175,16 @@ else fi fi +# Enable --enable-host-pie. +AC_ARG_ENABLE(host-pie, +[AS_HELP_STRING([--enable-host-pie], + [build host code as PIE])], +[PIC_FLAG=-fPIE], [PIC_FLAG=]) # Enable --enable-host-shared. AC_ARG_ENABLE(host-shared, [AS_HELP_STRING([--enable-host-shared], [build host code as shared libraries])], -[PIC_FLAG=-fPIC], [PIC_FLAG=]) +[PIC_FLAG=-fPIC]) AC_SUBST(PIC_FLAG) # Enable Intel CET on Intel CET enabled host if jit is enabled. |