mirror of
https://github.com/oasislinux/oasis.git
synced 2026-05-12 21:34:47 +02:00
Michael Forney
efd997922b
This will facilitate the addition of architectures like riscv64 which use the generic crti.c and crtn.c.
133 lines
3.7 KiB
Lua
133 lines
3.7 KiB
Lua
local arch = config.target.platform:match('[^-]*')
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set('cflags_auto', {
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'-fomit-frame-pointer',
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'-fno-unwind-tables',
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'-fno-asynchronous-unwind-tables',
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'-ffunction-sections',
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'-fdata-sections',
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})
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set('cflags_c99fse', {
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'-std=c99',
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'-nostdinc',
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'-ffreestanding',
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'-fexcess-precision=standard',
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'-frounding-math',
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'-Wa,--noexecstack',
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})
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set('cflags_nossp', '-fno-stack-protector')
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set('cflags_memops', '-fno-tree-loop-distribute-patterns')
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cflags{
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'$cflags_auto',
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'$cflags_c99fse',
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'-Wno-return-local-addr',
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'-fPIC',
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'-D _XOPEN_SOURCE=700',
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'-I $srcdir/arch/'..arch,
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'-I $srcdir/arch/generic',
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'-I $outdir',
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'-I $srcdir/src/include',
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'-I $srcdir/src/internal',
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'-I $outdir/include',
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}
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set('ldflags', {
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'$ldflags',
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'-Wl,--sort-section,alignment',
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'-Wl,--sort-common',
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'-Wl,--gc-sections',
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'-Wl,--hash-style=both',
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'-Wl,--no-undefined',
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'-Wl,--exclude-libs=ALL',
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'-Wl,--dynamic-list=$srcdir/dynamic.list',
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})
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local basefiles = load('base.lua')
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local archfiles = load(arch..'.lua')
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local bits = {}
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for _, hdr in ipairs(archfiles.bits) do
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archfiles.bits[hdr] = true
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end
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for _, hdr in ipairs(basefiles.bits) do
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if not archfiles.bits[hdr] then
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table.insert(bits, hdr)
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end
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end
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pkg.hdrs = {
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copy('$outdir/include', '$srcdir/include', basefiles.hdrs),
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copy('$outdir/include/bits', '$srcdir/arch/'..arch..'/bits', archfiles.bits),
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copy('$outdir/include/bits', '$srcdir/arch/generic/bits', bits),
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'$outdir/include/bits/alltypes.h',
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'$outdir/include/bits/syscall.h',
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install=true,
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}
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pkg.deps = {
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'$gendir/headers',
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'$outdir/version.h',
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}
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build('sed', '$outdir/include/bits/alltypes.h', {
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'$srcdir/arch/'..arch..'/bits/alltypes.h.in',
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'$srcdir/include/alltypes.h.in',
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'|', '$srcdir/tools/mkalltypes.sed',
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}, {expr='-f $srcdir/tools/mkalltypes.sed'})
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build('sed', '$outdir/include/bits/syscall.h', {'$srcdir/arch/'..arch..'/bits/syscall.h.in'}, {
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expr=[[-n -e 'p;s,__NR_,SYS_,p']],
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})
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build('awk', '$outdir/version.h', '$dir/ver', {expr=[['{printf "#define VERSION \"%s\"\n", $$1}']]})
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local srcs, objs = {}, {}
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for src in iterstrings{basefiles.srcs, archfiles.srcs} do
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srcs[src:match('(.*)%.'):gsub('/'..arch..'/', '/', 1)] = src
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end
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local specialcflags = {
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-- src/Makefile:/^MEMOPS_OBJS
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-- src/Makefile:/^NOSSP_OBJS
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__init_tls='$cflags $cflags_nossp',
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__libc_start_main='$cflags $cflags_nossp',
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__set_thread_area='$cflags $cflags_nossp',
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__stack_chk_fail='$cflags $cflags_nossp',
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memcpy='$cflags $cflags_memops $cflags_nossp',
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memmove='$cflags $cflags_memops',
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memset='$cflags $cflags_memops $cflags_nossp',
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memcmp='$cflags $cflags_memops',
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}
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for _, src in pairs(srcs) do
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table.insert(objs, cc(src, nil, {cflags=specialcflags[src:match('([^/]*)%.[^/.]*$')]}))
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end
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table.sort(objs)
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ar('libc.a', objs)
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file('lib/libc.a', '644', '$outdir/libc.a')
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exe('libc.so', {'ldso/dlstart.c', 'ldso/dynlink.c', objs}, nil, {
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cflags='$cflags $cflags_nossp',
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ldflags='$ldflags -nostdlib -shared -Wl,-e,_dlstart',
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ldlibs='-lgcc',
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})
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file('lib/libc.so', '755', '$outdir/libc.so')
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sym('lib/ld-musl-'..arch..'.so.1', 'libc.so')
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sym('bin/ldd', '../lib/libc.so')
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for _, lib in ipairs{'libm.a', 'librt.a', 'libpthread.a', 'libcrypt.a', 'libutil.a', 'libxnet.a', 'libresolv.a', 'libdl.a'} do
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ar(lib, {})
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file('lib/'..lib, '644', '$outdir/'..lib)
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end
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local startfiles = {'$outdir/libc.a'}
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local crts = {}
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for src in iterstrings{basefiles.crts, archfiles.crts} do
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crts[src:match('(.*)%.'):gsub('/'..arch..'/', '/', 1)] = src
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end
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for _, src in pairs(crts) do
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local obj = src:gsub('.-(%w*)%.[cs]$', '%1.o')
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local out = '$outdir/'..obj
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build('cc', out, {'$srcdir/'..src, '|', '$gendir/deps'}, {cflags='$cflags $cflags_nossp'})
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file('lib/'..obj, '644', out)
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table.insert(startfiles, out)
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end
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phony('startfiles', startfiles)
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fetch 'git'
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