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# APIs depending on the operating system.
# presumably if the user is running a bash
# script there is some degree of posix
# support available, but we might still be
# building for windows from within cygwin
# or whatever
case $os in
lin|?bsd|and|dar|osx) posix=yes; unix=yes;;
hai) posix=yes; unix=no;;
*) posix=no; unix=no;;
esac
case $os.$bits in
win.32) bin_fmt=win32;;
win.64) bin_fmt=win64;;
................................................................................
check cc "your C compiler of choice"
check asm "an assembler that takes Intel syntax and nasm-style-macros"
check m4 "the path to your m4 installation"
export build=$(global/build-id.sh)
if test "$p_headers_syscall" = ""; then
case $os in
lin) headers_syscall_search=(
/usr/include/asm/unistd_${bits}.h
/usr/include/asm-generic/unistd.h
/usr/include/*-linux-gnu/asm/unistd_${bits}.h
);;
fbsd) p_headers_syscall_search=(
/usr/include/sys/syscall.h
);;
esac
fi
if test "$p_headers_errno" = ""; then
case $os in
lin) p_headers_errno="${p_headers_errno:-/usr/include/asm-generic/errno.h /usr/include/asm-generic/errno-base.h}";;
fbsd) p_headers_errno="${p_headers_errno:-/usr/include/errno.h}";;
esac
fi
for f in "${headers_syscall_search[@]}"; do
test -e "$f" || continue
p_headers_syscall="$f"
say "using syscall headers at $f"
break;
done
check p_headers_syscall \
'the location of a header defining your syscall numbers'
check p_headers_errno \
'the location of a header defining the values of each errno symbol'
macro_compile_env="-Datom_target_arch=$arch -Datom_target_os=$os -Dtarget_posix=$posix -Dtarget_unix=$unix"
if test "$bits" != ""; then
macro_compile_env="$macro_compile_env -Datom_target_bits=$bits"
fi
if test "$COLORTERM" != ""; then
announce() {
test "$verbose" = "silent" && return
color="$1" cmd="$2"; shift 2;
printf " [1;95m→ [38;5;$color;1m$cmd[m"
for a in "$@"; do
................................................................................
comp_mac() {
local src=$1
local output=$2
local flags=$3
if test -e "$output"; then
if test ! "$output" -ot "$src"; then
return
fi
fi
$m4 $macro_compile_env -I "$gen" $flags "$src" > "$output"
announce 207 $m4 $macro_compile_env -I "$gen" $flags "$src" \> "$output"
# yes, this is incredibly stupid. if you know a better way, feel
# free to submit a fix. the problem is there's no way to pass >
# to report in such a way that it'll do the right thing, and if
# you just write > it redirects *report's* output, instead of
# m4's. piece of shit that it is, m4 doesn't have any way to emit
# output into a fille - stdout only apparently. tl;dr i hate bash.
................................................................................
# get type data
mkdir -p $gen
$cc -D_emit_m4_include arch/typesize.c -o $gen/typesize
$gen/typesize > gen/typesize.m
# generate syscall tables
case $os in
lin) grep -h "#define __NR_" $p_headers_syscall | sed 's;^#define __NR_;;' > $gen/calls.tbl;;
fbsd) grep -h "#define SYS_" $p_headers_syscall | sed 's;^#define SYS_;;' | sed 's;[\t ]\+; ;' > $gen/calls.tbl;;
*) noimpl 'system call table generation';;
esac
cat $p_headers_syscall $gen/calls.tbl | cpp -P |
awk -f arch/syscall.awk -v out=s >$gen/system_calls.s
cat $p_headers_syscall $gen/calls.tbl | cpp -P |
awk -f arch/syscall.awk -v out=h >$gen/system_calls.h
# generate errno tables
grep -h "#[ ]*define[ ]\+E" $p_headers_errno | sed 's;^#[\t ]*define[\t ]\+\(E[A-Z0-9]\+\).*$;k_platform_error_\1 \1;' > $gen/error_names.tbl
cat $p_headers_errno $gen/error_names.tbl | cpp -P >$gen/error_numbers.tbl
awk -f arch/errtbl.awk <$gen/error_numbers.tbl >$gen/error_table.h
# generate symbol tables for error handling functions
mkdir -p "$out/k"
awk -f global/gen-conds.awk <global/modules >$out/k/internal.egroup.h
awk -f global/gen-ident.awk <global/modules >$gen/internal.ident.c
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# APIs depending on the operating system.
# presumably if the user is running a bash
# script there is some degree of posix
# support available, but we might still be
# building for windows from within cygwin
# or whatever
case $os in
lin|?bsd|and|dar|osx|nix) posix=yes; unix=yes;;
hai) posix=yes; unix=no;;
*) posix=no; unix=no;;
esac
case $os.$bits in
win.32) bin_fmt=win32;;
win.64) bin_fmt=win64;;
................................................................................
check cc "your C compiler of choice"
check asm "an assembler that takes Intel syntax and nasm-style-macros"
check m4 "the path to your m4 installation"
export build=$(global/build-id.sh)
if test "$p_headers_errno" = ""; then
case $os in
lin) p_headers_errno="${p_headers_errno:-/usr/include/asm-generic/errno.h /usr/include/asm-generic/errno-base.h}";;
fbsd) p_headers_errno="${p_headers_errno:-/usr/include/errno.h}";;
esac
fi
check p_headers_errno \
'the location of a header defining the values of each errno symbol'
macro_compile_env="-Datom_target_arch=$arch -Datom_target_os=$os -Dtarget_posix=$posix -Dtarget_unix=$unix"
if test "$bits" != ""; then
macro_compile_env="$macro_compile_env -Datom_target_bits=$bits"
fi
if test "$COLORTERM" != ""; then
announce() {
test "$verbose" = "silent" && return
color="$1" cmd="$2"; shift 2;
printf " [1;95m→ [38;5;$color;1m$cmd[m"
for a in "$@"; do
................................................................................
comp_mac() {
local src=$1
local output=$2
local flags=$3
if test -e "$output"; then
if test ! "$output" -ot "$src"; then
return
fi
fi
$m4 $macro_compile_env -I "$gen" $flags "$src" > "$output"
announce 207 $m4 $macro_compile_env -I "$gen" $flags "$src" \> "$output"
# yes, this is incredibly stupid. if you know a better way, feel
# free to submit a fix. the problem is there's no way to pass >
# to report in such a way that it'll do the right thing, and if
# you just write > it redirects *report's* output, instead of
# m4's. piece of shit that it is, m4 doesn't have any way to emit
# output into a fille - stdout only apparently. tl;dr i hate bash.
................................................................................
# get type data
mkdir -p $gen
$cc -D_emit_m4_include arch/typesize.c -o $gen/typesize
$gen/typesize > gen/typesize.m
# generate syscall tables
if test $posix = yes; then
# on posix, we simply abuse CPP to garner a list of syscalls;
# the file arch/posix_syscalls contains a list of syscalls
# we wish to import; we use sed to transform this into a form
# that cpp will fill out for us, producing a table that the
# awk scripts can handle and turn into a list of constants.
echo '#include <sys/syscall.h>' > $gen/system_calls.t.1 # this is the magic part
cat arch/posix_syscalls > $gen/system_calls.t.2
sed -e 's;^\(.*\)$;\1 SYS_\1;' -i $gen/system_calls.t.2
cat $gen/system_calls.t.1 $gen/system_calls.t.2 | cpp -P >$gen/system_calls.tbl
else
case $os in
# lin) grep -h "#define __NR_" $p_headers_syscall | sed 's;^#define __NR_;;' > $gen/system_calls.tbl;;
# fbsd) grep -h "#define SYS_" $p_headers_syscall | sed 's;^#define SYS_;;' | sed 's;[\t ]\+; ;' > $gen/system_calls.tbl;;
*) noimpl 'system call table generation';;
esac
fi
# cat $p_headers_syscall $gen/system_calls.tbl | cpp -P |
awk -f arch/syscall.awk -v out=s <$gen/system_calls.tbl>$gen/system_calls.s
# cat $p_headers_syscall $gen/system_calls.tbl | cpp -P |
awk -f arch/syscall.awk -v out=h <$gen/system_calls.tbl>$gen/system_calls.h
# generate errno tables
grep -h "#[ ]*define[ ]\+E" $p_headers_errno |
sed 's;^#[\t ]*define[\t ]\+\(E[A-Z0-9]\+\).*$;k_platform_error_\1 \1;' >\
$gen/error_names.tbl
cat $p_headers_errno $gen/error_names.tbl | cpp -P >$gen/error_numbers.tbl
awk -f arch/errtbl.awk <$gen/error_numbers.tbl >$gen/error_table.h
# generate symbol tables for error handling functions
mkdir -p "$out/k"
awk -f global/gen-conds.awk <global/modules >$out/k/internal.egroup.h
awk -f global/gen-ident.awk <global/modules >$gen/internal.ident.c
|