Overview
| Comment: | improve syscall collection mechanism |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA3-256: |
9dd8bab2ac00edcb2cdfe587d65add88 |
| User & Date: | lexi on 2019-08-20 04:04:24 |
| Other Links: | manifest | tags |
Context
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2019-08-20
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| 22:54 | reorganize posix assembly code check-in: f85e6a07dd user: lexi tags: trunk | |
| 04:04 | improve syscall collection mechanism check-in: 9dd8bab2ac user: lexi tags: trunk | |
| 03:04 | address case where syscall numbers in header derive from deeper includes check-in: 09a1767049 user: lexi tags: trunk | |
Changes
Modified build.sh from [81c1265d8b] to [5f22a34160].
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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 |