This patch changes the build machinery in order to disable the build
of GCOV (both compiler and libgcc) in bpf-*-* targets. The reason for
this change is that BPF is (currently) too restricted in order to
support the coverage instrumentalization.
Tested in bpf-unknown-none and x86_64-linux-gnu targets.
2022-02-23 Jose E. Marchesi <jose.march...@oracle.com>
gcc/ChangeLog
PR target/104656
* configure.ac: --disable-gcov if targetting bpf-*.
* configure: Regenerate.
libgcc/ChangeLog
PR target/104656
* configure.ac: --disable-gcov if targetting bpf-*.
* configure: Regenerate.
---
gcc/configure | 14 +++++++++++---
gcc/configure.ac | 10 +++++++++-
libgcc/configure | 31 +++++++++++++++++++------------
libgcc/configure.ac | 17 ++++++++++++-----
4 files changed, 51 insertions(+), 21 deletions(-)
diff --git a/gcc/configure b/gcc/configure
index 258b17a226e..22eb3451e3d 100755
--- a/gcc/configure
+++ b/gcc/configure
@@ -8085,12 +8085,20 @@ fi
if test "${enable_gcov+set}" = set; then :
enableval=$enable_gcov;
else
- enable_gcov=yes
+ case $target in
+ bpf-*-*)
+ enable_gcov=no
+ ;;
+ *)
+ enable_gcov=yes
+ ;;
+ esac
fi
+
# Check whether --with-specs was given.
if test "${with_specs+set}" = set; then :
withval=$with_specs; CONFIGURE_SPECS=$withval
@@ -19659,7 +19667,7 @@ else
lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
lt_status=$lt_dlunknown
cat > conftest.$ac_ext <<_LT_EOF
-#line 19662 "configure"
+#line 19670 "configure"
#include "confdefs.h"
#if HAVE_DLFCN_H
@@ -19765,7 +19773,7 @@ else
lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
lt_status=$lt_dlunknown
cat > conftest.$ac_ext <<_LT_EOF
-#line 19768 "configure"
+#line 19776 "configure"
#include "confdefs.h"
#if HAVE_DLFCN_H
diff --git a/gcc/configure.ac b/gcc/configure.ac
index 06750cee977..20da90901f8 100644
--- a/gcc/configure.ac
+++ b/gcc/configure.ac
@@ -1041,7 +1041,15 @@ AC_SUBST(enable_shared)
AC_ARG_ENABLE(gcov,
[ --disable-gcov don't provide libgcov and related host tools],
-[], [enable_gcov=yes])
+[], [case $target in
+ bpf-*-*)
+ enable_gcov=no
+ ;;
+ *)
+ enable_gcov=yes
+ ;;
+ esac])
+
AC_SUBST(enable_gcov)
AC_ARG_WITH(specs,
diff --git a/libgcc/configure b/libgcc/configure
index 4919a56f518..52bf25d4e94 100755
--- a/libgcc/configure
+++ b/libgcc/configure
@@ -630,6 +630,7 @@ LIPO
AR
toolexeclibdir
toolexecdir
+enable_gcov
target_subdir
host_subdir
build_subdir
@@ -653,7 +654,6 @@ build_cpu
build
with_aix_soname
enable_vtable_verify
-enable_gcov
enable_shared
libgcc_topdir
target_alias
@@ -701,7 +701,6 @@ with_target_subdir
with_cross_host
with_ld
enable_shared
-enable_gcov
enable_vtable_verify
with_aix_soname
enable_version_specific_runtime_libs
@@ -709,6 +708,7 @@ with_toolexeclibdir
with_slibdir
enable_maintainer_mode
with_build_libsubdir
+enable_gcov
enable_largefile
enable_decimal_float
with_system_libunwind
@@ -1342,12 +1342,12 @@ Optional Features:
--disable-FEATURE do not include FEATURE (same as --enable-FEATURE=no)
--enable-FEATURE[=ARG] include FEATURE [ARG=yes]
--disable-shared don't provide a shared libgcc
- --disable-gcov don't provide libgcov and related host tools
--enable-vtable-verify Enable vtable verification feature
--enable-version-specific-runtime-libs Specify that runtime libraries
should be installed in a compiler-specific directory
--enable-maintainer-mode
enable make rules and dependencies not useful (and
sometimes confusing) to the casual installer
+ --disable-gcov don't provide libgcov and related host tools
--disable-largefile omit support for large files
--enable-decimal-float={no,yes,bid,dpd}
enable decimal float extension to C. Selecting 'bid'
@@ -2252,15 +2252,6 @@ fi
-# Check whether --enable-gcov was given.
-if test "${enable_gcov+set}" = set; then :
- enableval=$enable_gcov;
-else
- enable_gcov=yes
-fi
-
-
-
# Check whether --enable-vtable-verify was given.
if test "${enable_vtable_verify+set}" = set; then :
enableval=$enable_vtable_verify; case "$enableval" in
@@ -2713,6 +2704,22 @@ fi
target_subdir=${target_noncanonical}
+# Check whether --enable-gcov was given.
+if test "${enable_gcov+set}" = set; then :
+ enableval=$enable_gcov;
+else
+ case $target in
+ bpf-*-*)
+ enable_gcov=no
+ ;;
+ *)
+ enable_gcov=yes
+ ;;
+ esac
+fi
+
+
+
# Calculate toolexeclibdir
# Also toolexecdir, though it's only used in toolexeclibdir
case ${version_specific_libs} in
diff --git a/libgcc/configure.ac b/libgcc/configure.ac
index 13a80b2551b..6f0b67c2adc 100644
--- a/libgcc/configure.ac
+++ b/libgcc/configure.ac
@@ -68,11 +68,6 @@ AC_ARG_ENABLE(shared,
], [enable_shared=yes])
AC_SUBST(enable_shared)
-AC_ARG_ENABLE(gcov,
-[ --disable-gcov don't provide libgcov and related host tools],
-[], [enable_gcov=yes])
-AC_SUBST(enable_gcov)
-
AC_ARG_ENABLE(vtable-verify,
[ --enable-vtable-verify Enable vtable verification feature ],
[case "$enableval" in
@@ -163,6 +158,18 @@ ACX_NONCANONICAL_HOST
ACX_NONCANONICAL_TARGET
GCC_TOPLEV_SUBDIRS
+AC_ARG_ENABLE(gcov,
+[ --disable-gcov don't provide libgcov and related host tools],
+[], [case $target in
+ bpf-*-*)
+ enable_gcov=no
+ ;;
+ *)
+ enable_gcov=yes
+ ;;
+ esac])
+AC_SUBST(enable_gcov)
+
# Calculate toolexeclibdir
# Also toolexecdir, though it's only used in toolexeclibdir
case ${version_specific_libs} in
--
2.11.0
