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-rwxr-xr-xutil/crossgcc/buildgcc122
1 files changed, 88 insertions, 34 deletions
diff --git a/util/crossgcc/buildgcc b/util/crossgcc/buildgcc
index 4d269d3f38..d04fe5f872 100755
--- a/util/crossgcc/buildgcc
+++ b/util/crossgcc/buildgcc
@@ -143,6 +143,43 @@ normalize_dirs()
perl -pi -e "s,/lib64,/lib," $DESTDIR$TARGETDIR/lib/*.la
}
+countdown()
+{
+ tout=${1:-10}
+
+ printf "\nPress Ctrl-C to abort, Enter to continue... %2ds" $tout
+ while [ $tout -gt 0 ]; do
+ sleep 1
+ tout=$((tout - 1))
+ printf "\b\b\b%2ds" $tout
+ done
+ printf "\n"
+}
+
+timeout()
+{
+ tout=${1:-10}
+
+ # Ignore SIGUSR1, should interrupt `read` though.
+ trap false USR1
+ # Clean up in case the user aborts.
+ trap 'kill $counter > /dev/null 2>&1' EXIT
+
+ (countdown $tout; kill -USR1 $$)&
+ counter=$!
+
+ # Some shells with sh compatibility mode (e.g. zsh, mksh) only
+ # let us interrupt `read` if a non-standard -t parameter is given.
+ if echo | read -t 1 foo 2>/dev/null; then
+ read -t $((tout + 1)) foo
+ else
+ read foo
+ fi
+
+ kill $counter > /dev/null 2>&1
+ trap - USR1 EXIT
+}
+
please_install()
{
HALT_FOR_TOOLS=1
@@ -258,37 +295,13 @@ hostcc_has_gnat1() {
[ -x "$(${CC} -print-prog-name=gnat1)" ]
}
-ada_requested() {
- echo "${LANGUAGES}" | grep -q '\<ada\>'
-}
-
-check_gnat() {
- if hostcc_has_gnat1; then
- if [ \( "$(hostcc_major)" -lt 4 -o \
- \( "$(hostcc_major)" -eq 4 -a "$(hostcc_minor)" -lt 9 \) \) -a \
- "${BOOTSTRAP}" != "1" ];
- then
- printf "\n${RED}ERROR:${red} Building the Ada compiler (gnat $(buildcc_version)) "
- printf "with a host compiler older\n than 4.9.x (yours $(hostcc_version)) "
- printf "requires bootstrapping (-b).${NC}\n\n"
- HALT_FOR_TOOLS=1
- fi
- else
- please_install gnat
- fi
+have_gnat() {
+ hostcc_has_gnat1 && \
+ searchtool gnatbind "Free Software Foundation" nofail > /dev/null
}
-check_cc() {
- if is_package_enabled "GCC"; then
- if [ "$(hostcc_major)" != "$(buildcc_major)" -a "${BOOTSTRAP}" != "1" ]; then
- printf "\n${red}warning: Building GCC $(buildcc_version) with a different major "
- printf "version ($(hostcc_version)).\n"
- printf " Bootstrapping (-b) is recommended.${NC}\n\n"
- fi
- if ada_requested; then
- check_gnat
- fi
- fi
+ada_requested() {
+ echo "${LANGUAGES}" | grep -q '\<ada\>'
}
check_sum() {
@@ -1040,17 +1053,58 @@ elif [ $UNAME = "NetBSD" ]; then
fi
fi
if [ -z "${LANGUAGES}" ]; then
- if hostcc_has_gnat1 && \
- [ "$(hostcc_major)" -ge 5 -o \
- \( "$(hostcc_major)" -eq 4 -a "$(hostcc_minor)" -ge 9 \) -o \
- "${BOOTSTRAP}" = "1" ];
- then
+ if have_gnat; then
printf "\nFound compatible Ada compiler, enabling Ada support by default.\n\n"
LANGUAGES="ada,${DEFAULT_LANGUAGES}"
else
+ printf "\n${red}WARNING${NC}\n"
+ printf "No compatible Ada compiler (GNAT) found. You can continue without\n"
+ printf "Ada support, but this will limit the features of ${blue}coreboot${NC} (e.g.\n"
+ printf "native graphics initialization won't be available on most Intel\n"
+ printf "boards).\n\n"
+
+ printf "Usually, you can install GNAT with your package management system\n"
+ printf "(the package is called \`gnat\` or \`gcc-ada\`). It has to match the\n"
+ printf "\`gcc\` package in version. If there are multiple versions of GCC in-\n"
+ printf "stalled, you can point this script to the matching version through\n"
+ printf "the \`CC\` and \`CXX\` environment variables.\n\n"
+
+ printf "e.g. on Ubuntu 14.04, if \`gcc\` is \`gcc-4.8\`:\n"
+ printf " apt-get install gnat-4.8 && make crossgcc\n\n"
+
+ printf "on Ubuntu 16.04, if \`gcc\` is \`gcc-5\`:\n"
+ printf " apt-get install gnat-5 && make crossgcc\n"
+ timeout 30
LANGUAGES="${DEFAULT_LANGUAGES}"
fi
fi
+if ada_requested; then
+ if have_gnat; then
+ if [ "$BOOTSTRAP" != 1 -a \
+ \( "$(hostcc_major)" -lt 4 -o \
+ \( "$(hostcc_major)" -eq 4 -a "$(hostcc_minor)" -lt 9 \) \) ]
+ then
+ printf "\n${red}WARNING${NC}\n"
+ printf "Building the Ada compiler (GNAT $(buildcc_version)) with a host compiler older\n"
+ printf "than 4.9.x (yours $(hostcc_version)) requires bootstrapping. This will take\n"
+ printf "significantly longer than a usual build. You can abort and update\n"
+ printf "your host GNAT or disable Ada support with BUILD_LANGUAGES=c (or\n"
+ printf "\`-l c\` in case you invoke \`buildgcc\` directly).\n"
+ timeout 15
+ BOOTSTRAP=1
+ fi
+ else
+ please_install gnat gcc-ada
+ exit 1
+ fi
+else
+ if [ "$(hostcc_major)" -lt 4 -a "$BOOTSTRAP" != 1 ]; then
+ printf "\n${red}WARNING${NC}\n"
+ printf "Building GCC $(buildcc_version) with a very old host compiler ($(hostcc_version)).\n"
+ printf "Bootstrapping (-b) is recommended.\n"
+ timeout 10
+ fi
+fi
fi # GCC
export HOSTCFLAGS="-Os"