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sortix-mirror/tix/tix-build.c

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/*
* Copyright (c) 2013, 2014, 2015, 2016, 2020, 2022 Jonas 'Sortie' Termansen.
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
* tix-build.c
* Compile a source tix into a tix suitable for installation.
*/
#include <sys/stat.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <assert.h>
#include <ctype.h>
#include <dirent.h>
#include <err.h>
#include <errno.h>
#include <fcntl.h>
#include <limits.h>
#include <signal.h>
#include <stdarg.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "util.h"
struct buildvar
{
const char* variable;
const char* value;
bool program;
};
static struct buildvar buildvars[] =
{
{ "AR", "ar", true },
{ "AS", "as", true },
{ "CC", "gcc", true },
{ "CFLAGS", "-Os", false },
{ "CPP", "gcc -E", true },
{ "CPP", "", false },
{ "CXXFILT", "c++filt", true },
{ "CXX", "g++", true },
{ "CXXFLAGS", "-Os", false },
{ "LD", "ld", true },
{ "LDFLAGS", "", false },
{ "NM", "nm", true },
{ "OBJCOPY", "objcopy", true },
{ "OBJDUMP", "objdump", true },
{ "PKG_CONFIG", "pkg-config", true },
{ "RANLIB", "ranlib", true },
{ "READELF", "readelf", true },
{ "STRIP", "strip", true },
};
#define BUILDVARS_LENGTH (sizeof(buildvars) / sizeof(buildvars[0]))
enum build_step
{
BUILD_STEP_NO_SUCH_STEP,
BUILD_STEP_START,
BUILD_STEP_PRE_CLEAN,
BUILD_STEP_CONFIGURE,
BUILD_STEP_BUILD,
BUILD_STEP_INSTALL,
BUILD_STEP_POST_INSTALL,
BUILD_STEP_POST_CLEAN,
BUILD_STEP_PACKAGE,
BUILD_STEP_END,
};
static bool should_do_build_step(enum build_step step,
enum build_step start,
enum build_step end)
{
return start <= step && step <= end;
}
#define SHOULD_DO_BUILD_STEP(step, minfo) \
should_do_build_step((step), (minfo)->start_step, (minfo)->end_step)
static enum build_step step_of_step_name(const char* step_name)
{
if ( !strcmp(step_name, "start") )
return BUILD_STEP_START;
if ( !strcmp(step_name, "clean") )
return BUILD_STEP_PRE_CLEAN;
if ( !strcmp(step_name, "pre-clean") )
return BUILD_STEP_PRE_CLEAN;
if ( !strcmp(step_name, "configure") )
return BUILD_STEP_CONFIGURE;
if ( !strcmp(step_name, "build") )
return BUILD_STEP_BUILD;
if ( !strcmp(step_name, "install") )
return BUILD_STEP_INSTALL;
if ( !strcmp(step_name, "post-install") )
return BUILD_STEP_POST_INSTALL;
if ( !strcmp(step_name, "post-clean") )
return BUILD_STEP_POST_CLEAN;
if ( !strcmp(step_name, "package") )
return BUILD_STEP_PACKAGE;
if ( !strcmp(step_name, "end") )
return BUILD_STEP_END;
return BUILD_STEP_NO_SUCH_STEP;
}
struct metainfo
{
char* build;
char* build_dir;
char* destination;
int generation;
char* host;
char* make;
char* makeflags;
char* package_dir;
char* package_info_path;
char* package_name;
char* prefix;
char* exec_prefix;
char* sysroot;
char* tar;
char* target;
char* tmp;
string_array_t package_info;
enum build_step start_step;
enum build_step end_step;
bool bootstrapping;
bool cross;
};
static bool has_in_path(const char* program)
{
pid_t child_pid = fork();
if ( child_pid < 0 )
err(1, "fork: which %s", program);
if ( child_pid )
{
int exitstatus;
waitpid(child_pid, &exitstatus, 0);
return WIFEXITED(exitstatus) && WEXITSTATUS(exitstatus) == 0;
}
close(0);
close(1);
close(2);
if ( open("/dev/null", O_RDONLY) != 0 ||
open("/dev/null", O_WRONLY) != 1 ||
open("/dev/null", O_WRONLY) != 2 )
{
warn("/dev/null");
_exit(1);
}
const char* argv[] = { "which", program, NULL };
execvp(argv[0], (char**) argv);
_exit(1);
}
static void emit_compiler_wrapper_invocation(FILE* wrapper,
struct metainfo* minfo,
const char* name)
{
fprintf(wrapper, "%s", name);
if ( minfo->sysroot )
fprintf(wrapper, " --sysroot=\"$SYSROOT\"");
fprintf(wrapper, " \"$@\"");
}
static void emit_compiler_sysroot_wrapper(struct metainfo* minfo,
const char* bindir,
const char* name)
{
if ( !has_in_path(name) )
return;
char* wrapper_path = join_paths(bindir, name);
if ( !wrapper_path )
err(1, "malloc");
FILE* wrapper = fopen(wrapper_path, "w");
if ( !wrapper )
err(1, "`%s'", wrapper_path);
fprintf(wrapper, "#!/bin/sh\n");
fprint_shell_variable_assignment(wrapper, "PATH", getenv("PATH"));
if ( minfo->sysroot )
fprint_shell_variable_assignment(wrapper, "SYSROOT", minfo->sysroot);
fprintf(wrapper, "exec ");
emit_compiler_wrapper_invocation(wrapper, minfo, name);
fprintf(wrapper, "\n");
fflush(wrapper);
fchmod_plus_x(fileno(wrapper));
if ( ferror(wrapper) || fflush(wrapper) == EOF )
err(1, "%s", wrapper_path);
fclose(wrapper);
free(wrapper_path);
}
static void emit_compiler_sysroot_cross_wrapper(struct metainfo* minfo,
const char* bindir,
const char* name)
{
char* cross_name = print_string("%s-%s", minfo->host, name);
if ( !cross_name )
err(1, "malloc");
emit_compiler_sysroot_wrapper(minfo, bindir, cross_name);
free(cross_name);
}
static void emit_pkg_config_wrapper(struct metainfo* minfo, const char* bindir)
{
// Create a pkg-config script for the build system.
char* pkg_config_for_build_path = join_paths(bindir, "pkg-config");
if ( !pkg_config_for_build_path )
err(1, "malloc");
FILE* pkg_config_for_build = fopen(pkg_config_for_build_path, "w");
if ( !pkg_config_for_build )
err(1, "`%s'", pkg_config_for_build_path);
fprintf(pkg_config_for_build, "#!/bin/sh\n");
fprint_shell_variable_assignment(pkg_config_for_build,
"PATH", getenv("PATH"));
fprint_shell_variable_assignment(pkg_config_for_build,
"PKG_CONFIG", getenv("PKG_CONFIG"));
fprint_shell_variable_assignment(pkg_config_for_build,
"PKG_CONFIG_FOR_BUILD", getenv("PKG_CONFIG_FOR_BUILD"));
if ( getenv("PKG_CONFIG_PATH_FOR_BUILD") )
fprint_shell_variable_assignment(pkg_config_for_build,
"PKG_CONFIG_PATH", getenv("PKG_CONFIG_PATH_FOR_BUILD"));
else
fprint_shell_variable_assignment(pkg_config_for_build,
"PKG_CONFIG_PATH", getenv("PKG_CONFIG_PATH"));
if ( getenv("PKG_CONFIG_SYSROOT_DIR_FOR_BUILD") )
fprint_shell_variable_assignment(pkg_config_for_build,
"PKG_CONFIG_SYSROOT_DIR",
getenv("PKG_CONFIG_SYSROOT_DIR_FOR_BUILD"));
else
fprint_shell_variable_assignment(pkg_config_for_build,
"PKG_CONFIG_SYSROOT_DIR", getenv("PKG_CONFIG_SYSROOT_DIR"));
if ( getenv("PKG_CONFIG_LIBDIR_FOR_BUILD") )
fprint_shell_variable_assignment(pkg_config_for_build,
"PKG_CONFIG_LIBDIR", getenv("PKG_CONFIG_LIBDIR_FOR_BUILD"));
else
fprint_shell_variable_assignment(pkg_config_for_build,
"PKG_CONFIG_LIBDIR", getenv("PKG_CONFIG_LIBDIR"));
fprintf(pkg_config_for_build,
"exec ${PKG_CONFIG_FOR_BUILD:-${PKG_CONFIG:-pkg-config}} \"$@\"\n");
if ( ferror(pkg_config_for_build) || fflush(pkg_config_for_build) == EOF )
err(1, "%s", pkg_config_for_build_path);
fchmod_plus_x(fileno(pkg_config_for_build));
fclose(pkg_config_for_build);
free(pkg_config_for_build_path);
// Create a pkg-config script for the host system.
char* var_pkg_config_libdir =
print_string("%s%s/lib/pkgconfig",
minfo->sysroot ? minfo->sysroot : "", minfo->exec_prefix);
if ( !var_pkg_config_libdir )
err(1, "malloc");
char* var_pkg_config_path = strdup(var_pkg_config_libdir);
if ( !var_pkg_config_path )
err(1, "malloc");
char* pkg_config_name = print_string("%s-pkg-config", minfo->host);
if ( !pkg_config_name )
err(1, "malloc");
char* pkg_config_path = join_paths(bindir, pkg_config_name);
if ( !pkg_config_path )
err(1, "malloc");
FILE* pkg_config = fopen(pkg_config_path, "w");
if ( !pkg_config )
err(1, "`%s'", pkg_config_path);
fprintf(pkg_config, "#!/bin/sh\n");
fprint_shell_variable_assignment(pkg_config, "PATH", getenv("PATH"));
fprint_shell_variable_assignment(pkg_config,
"PKG_CONFIG", getenv("PKG_CONFIG"));
fprint_shell_variable_assignment(pkg_config,
"PKG_CONFIG_PATH", var_pkg_config_path);
fprint_shell_variable_assignment(pkg_config,
"PKG_CONFIG_SYSROOT_DIR", minfo->sysroot);
fprint_shell_variable_assignment(pkg_config,
"PKG_CONFIG_LIBDIR", var_pkg_config_libdir);
// Pass --static as Sortix only static links at the moment.
fprintf(pkg_config, "exec ${PKG_CONFIG:-%s} --static \"$@\"\n",
has_in_path(pkg_config_name) ? pkg_config_name : "pkg-config");
fflush(pkg_config);
if ( ferror(pkg_config) || fflush(pkg_config) == EOF )
err(1, "%s", pkg_config_path);
fchmod_plus_x(fileno(pkg_config));
fclose(pkg_config);
free(pkg_config_path);
free(var_pkg_config_libdir);
free(var_pkg_config_path);
}
static void append_to_path(const char* directory)
{
const char* path = getenv("PATH");
if ( path && path[0] )
{
char* new_path = print_string("%s:%s", directory, path);
if ( !new_path )
err(1, "malloc");
if ( setenv("PATH", new_path, 1) < 0 )
err(1, "setenv");
free(new_path);
}
else if ( setenv("PATH", directory, 1) < 0 )
err(1, "setenv");
}
static void EmitWrappers(struct metainfo* minfo)
{
if ( !minfo->cross )
return;
char* bindir = join_paths(tmp_root, "bin");
if ( mkdir(bindir, 0777) < 0 )
err(1, "mkdir: %s", bindir);
emit_pkg_config_wrapper(minfo, bindir);
emit_compiler_sysroot_cross_wrapper(minfo, bindir, "cc");
emit_compiler_sysroot_cross_wrapper(minfo, bindir, "gcc");
emit_compiler_sysroot_cross_wrapper(minfo, bindir, "c++");
emit_compiler_sysroot_cross_wrapper(minfo, bindir, "g++");
emit_compiler_sysroot_cross_wrapper(minfo, bindir, "ld");
append_to_path(bindir);
free(bindir);
}
static void SetNeedVariableBuildTool(struct metainfo* minfo,
const char* variable,
const char* value)
{
string_array_t* pkg_info = &minfo->package_info;
const char* needed_vars =
dictionary_get_def(pkg_info, "pkg.make.needed-vars", "true");
char* key = print_string("pkg.make.needed-vars.%s", variable);
if ( !key )
err(1, "malloc");
const char* needed_var = dictionary_get_def(pkg_info, key, needed_vars);
free(key);
if ( !parse_boolean(needed_var) )
return;
if ( setenv(variable, value, 1) < 0 )
err(1, "setenv");
}
static void SetNeedVariableCrossTool(struct metainfo* minfo,
const char* variable,
const char* value)
{
if ( !minfo->cross )
SetNeedVariableBuildTool(minfo, variable, value);
else
{
char* newvalue = print_string("%s-%s", minfo->host, value);
if ( !newvalue )
err(1, "malloc");
SetNeedVariableBuildTool(minfo, variable, newvalue);
free(newvalue);
}
}
static void SetNeededVariables(struct metainfo* minfo)
{
if ( minfo->bootstrapping )
{
for ( size_t i = 0; i < BUILDVARS_LENGTH; i++ )
unsetenv(buildvars[i].variable);
for ( size_t i = 0; i < BUILDVARS_LENGTH; i++ )
{
char* for_build =
print_string("%s_FOR_BUILD", buildvars[i].variable);
if ( !for_build )
err(1, "malloc");
const char* value = getenv(for_build);
if ( value && setenv(buildvars[i].variable, value, 1) < 0 )
err(1, "setenv");
free(for_build);
}
return;
}
for ( size_t i = 0; i < BUILDVARS_LENGTH; i++ )
{
if ( !buildvars[i].program && !getenv(buildvars[i].variable) )
continue;
char* for_build = print_string("%s_FOR_BUILD", buildvars[i].variable);
if ( !for_build )
err(1, "malloc");
SetNeedVariableBuildTool(minfo, for_build, buildvars[i].value);
free(for_build);
}
for ( size_t i = 0; i < BUILDVARS_LENGTH; i++ )
if ( buildvars[i].program )
SetNeedVariableCrossTool(minfo, buildvars[i].variable,
buildvars[i].value);
}
static void Configure(struct metainfo* minfo)
{
if ( !fork_and_wait_or_recovery() )
return;
string_array_t* pkg_info = &minfo->package_info;
const char* subdir = dictionary_get(pkg_info, "pkg.subdir");
const char* configure_raw =
dictionary_get_def(pkg_info, "pkg.configure.cmd", "./configure");
char* configure;
if ( strcmp(minfo->build_dir, minfo->package_dir) == 0 )
configure = strdup(configure_raw);
else
configure = join_paths(minfo->package_dir, configure_raw);
if ( !configure )
err(1, "malloc");
const char* conf_extra_args =
dictionary_get_def(pkg_info, "pkg.configure.args", "");
const char* conf_extra_vars =
dictionary_get_def(pkg_info, "pkg.configure.vars", "");
bool with_sysroot =
parse_boolean(dictionary_get_def(pkg_info,
"pkg.configure.with-sysroot", "false"));
// TODO: I am unclear if this issue still affects gcc, I might have
// forgotten to set pkg.configure.with-sysroot-ld-bug=true there.
const char* with_sysroot_ld_bug_default = "false";
if ( !strcmp(minfo->package_name, "gcc") )
with_sysroot_ld_bug_default = "true";
bool with_sysroot_ld_bug =
parse_boolean(dictionary_get_def(pkg_info,
"pkg.configure.with-sysroot-ld-bug", with_sysroot_ld_bug_default ));
bool with_build_sysroot =
parse_boolean(dictionary_get_def(pkg_info,
"pkg.configure.with-build-sysroot", "false"));
if ( chdir(minfo->build_dir) != 0 )
err(1, "chdir: `%s'", minfo->build_dir);
if ( subdir && chdir(subdir) != 0 )
err(1, "chdir: `%s/%s'", minfo->build_dir, subdir);
SetNeededVariables(minfo);
string_array_t env_vars = string_array_make();
string_array_append_token_string(&env_vars, conf_extra_vars);
for ( size_t i = 0; i < env_vars.length; i++ )
{
char* key = env_vars.strings[i];
assert(key);
char* assignment = strchr((char*) key, '=');
if ( !assignment )
{
if ( !strncmp(key, "unset ", strlen("unset ")) )
unsetenv(key + strlen("unset "));
continue;
}
*assignment = '\0';
char* value = assignment+1;
setenv(key, value, 1);
}
const char* fixed_cmd_argv[] =
{
configure,
print_string("--prefix=%s", minfo->prefix),
print_string("--exec-prefix=%s", minfo->exec_prefix),
print_string("--build=%s", minfo->build),
minfo->bootstrapping ? NULL :
print_string("--host=%s", minfo->host),
print_string("--target=%s", minfo->target),
NULL
};
string_array_t args = string_array_make();
for ( size_t i = 0; fixed_cmd_argv[i]; i++ )
string_array_append(&args, fixed_cmd_argv[i]);
if ( minfo->sysroot && with_build_sysroot )
{
string_array_append(&args, print_string("--with-build-sysroot=%s",
minfo->sysroot));
if ( minfo->sysroot && with_sysroot )
{
// TODO: Binutils has a bug where the empty string means that
// sysroot support is disabled and ld --sysroot won't work
// so set it to / here for compatibility.
// TODO: GCC has a bug where it doesn't use the
// --with-build-sysroot value when --with-sysroot= when
// locating standard library headers.
if ( with_sysroot_ld_bug )
string_array_append(&args, "--with-sysroot=/");
else
string_array_append(&args, "--with-sysroot=");
}
}
else if ( minfo->sysroot && with_sysroot )
{
string_array_append(&args, print_string("--with-sysroot=%s",
minfo->sysroot));
}
string_array_append_token_string(&args, conf_extra_args);
string_array_append(&args, NULL);
recovery_execvp(args.strings[0], (char* const*) args.strings);
err(127, "`%s'", args.strings[0]);
}
static bool TestDirty(struct metainfo* minfo,
const char* subdir,
const char* candidate)
{
if ( !subdir )
subdir = ".";
char* path;
if ( asprintf(&path, "%s/%s/%s", minfo->build_dir, subdir, candidate) < 0 )
err(1, "asprintf");
bool result = access(path, F_OK) == 0;
free(path);
return result;
}
static bool IsDirty(struct metainfo* minfo)
{
string_array_t* pkg_info = &minfo->package_info;
const char* dirty_file = dictionary_get(pkg_info, "pkg.dirty-file");
const char* subdir = dictionary_get(pkg_info, "pkg.subdir");
if ( dirty_file )
return TestDirty(minfo, subdir, dirty_file);
return TestDirty(minfo, subdir, "config.log") ||
TestDirty(minfo, subdir, "Makefile") ||
TestDirty(minfo, subdir, "makefile");
}
static void Make(struct metainfo* minfo,
const char* make_target,
const char* destdir,
bool die_on_error,
const char* subdir)
{
if ( !(die_on_error ?
fork_and_wait_or_recovery() :
fork_and_wait_or_death_def(false)) )
return;
string_array_t* pkg_info = &minfo->package_info;
char* make = strdup(minfo->make);
const char* override_make = dictionary_get(pkg_info, "pkg.make.cmd");
const char* make_extra_args =
dictionary_get_def(pkg_info, "pkg.make.args", "");
const char* make_extra_vars =
dictionary_get_def(pkg_info, "pkg.make.vars", "");
if ( override_make )
{
free(make);
make = join_paths(minfo->package_dir, override_make);
}
SetNeededVariables(minfo);
if ( chdir(minfo->build_dir) != 0 )
err(1, "chdir: `%s'", minfo->build_dir);
if ( subdir && chdir(subdir) != 0 )
err(1, "chdir: `%s/%s'", minfo->build_dir, subdir);
if ( !minfo->bootstrapping && destdir )
setenv("DESTDIR", destdir, 1);
setenv("BUILD", minfo->build, 1);
setenv("HOST", minfo->host, 1);
setenv("TARGET", minfo->target, 1);
if ( minfo->prefix )
setenv("PREFIX", minfo->prefix, 1);
else
unsetenv("PREFIX");
if ( minfo->exec_prefix )
setenv("EXEC_PREFIX", minfo->exec_prefix, 1);
else
unsetenv("EXEC_PREFIX");
if ( minfo->makeflags )
setenv("MAKEFLAGS", minfo->makeflags, 1);
setenv("MAKE", minfo->make, 1);
string_array_t env_vars = string_array_make();
string_array_append_token_string(&env_vars, make_extra_vars);
for ( size_t i = 0; i < env_vars.length; i++ )
{
char* key = env_vars.strings[i];
assert(key);
char* assignment = strchr((char*) key, '=');
if ( !assignment )
{
if ( !strncmp(key, "unset ", strlen("unset ")) )
unsetenv(key + strlen("unset "));
continue;
}
*assignment = '\0';
char* value = assignment+1;
setenv(key, value, 1);
}
const char* fixed_cmd_argv[] = { make, NULL };
string_array_t args = string_array_make();
for ( size_t i = 0; fixed_cmd_argv[i]; i++ )
string_array_append(&args, fixed_cmd_argv[i]);
string_array_append_token_string(&args, make_target);
string_array_append_token_string(&args, make_extra_args);
if ( !die_on_error )
string_array_append(&args, "-k");
string_array_append(&args, NULL);
if ( die_on_error )
recovery_execvp(args.strings[0], (char* const*) args.strings);
else
execvp(args.strings[0], (char* const*) args.strings);
err(127, "`%s'", args.strings[0]);
}
static void Clean(struct metainfo* minfo)
{
string_array_t* pinfo = &minfo->package_info;
const char* subdir = dictionary_get(pinfo, "pkg.subdir");
const char* build_system =
dictionary_get_def(pinfo, "pkg.build-system", "none");
const char* default_clean_target =
!strcmp(build_system, "configure") ? "distclean" : "clean";
const char* clean_target =
dictionary_get_def(pinfo, "pkg.make.clean-target",
default_clean_target);
const char* ignore_clean_failure_var =
dictionary_get_def(pinfo, "pkg.make.ignore-clean-failure", "true");
bool ignore_clean_failure = parse_boolean(ignore_clean_failure_var);
Make(minfo, clean_target, NULL, !ignore_clean_failure, subdir);
}
static void Build(struct metainfo* minfo)
{
string_array_t* pinfo = &minfo->package_info;
const char* subdir = dictionary_get(pinfo, "pkg.subdir");
const char* build_target =
dictionary_get_def(pinfo, "pkg.make.build-target", "all");
Make(minfo, build_target, NULL, true, subdir);
}
static void CreateDestination(void)
{
char* tardir_rel = join_paths(tmp_root, "tix");
char* destdir_rel = join_paths(tardir_rel, "data");
char* tixdir_rel = join_paths(tardir_rel, "tix");
if ( mkdir(tardir_rel, 0777) < 0 )
err(1, "mkdir: %s", tardir_rel);
if ( mkdir(destdir_rel, 0755) != 0 )
err(1, "mkdir: `%s'", destdir_rel);
if ( mkdir(tixdir_rel, 0755) != 0 )
err(1, "mkdir: `%s'", tixdir_rel);
free(tardir_rel);
free(destdir_rel);
free(tixdir_rel);
}
static void Install(struct metainfo* minfo)
{
string_array_t* pinfo = &minfo->package_info;
const char* subdir = dictionary_get(pinfo, "pkg.subdir");
const char* install_target =
dictionary_get_def(pinfo, "pkg.make.install-target", "install");
char* tardir_rel = join_paths(tmp_root, "tix");
char* destdir_rel = join_paths(tardir_rel, "data");
char* destdir = realpath(destdir_rel, NULL);
if ( !destdir )
err(1, "realpath: %s", destdir_rel);
Make(minfo, install_target, destdir, true, subdir);
free(tardir_rel);
free(destdir_rel);
free(destdir);
}
static void PostInstall(struct metainfo* minfo)
{
string_array_t* pinfo = &minfo->package_info;
const char* post_install_cmd =
dictionary_get(pinfo, "pkg.post-install.cmd");
if ( !post_install_cmd )
return;
if ( !fork_and_wait_or_recovery() )
return;
const char* subdir = dictionary_get(pinfo, "pkg.subdir");
char* tardir_rel = join_paths(tmp_root, "tix");
char* destdir_rel = join_paths(tardir_rel, "data");
char* destdir = realpath(destdir_rel, NULL);
if ( !destdir )
err(1, "realpath: %s", destdir_rel);
SetNeededVariables(minfo);
if ( chdir(minfo->package_dir) != 0 )
err(1, "chdir: `%s'", minfo->package_dir);
if ( subdir && chdir(subdir) != 0 )
err(1, "chdir: `%s/%s'", minfo->build_dir, subdir);
setenv("TIX_BUILD_DIR", minfo->build_dir, 1);
setenv("TIX_SOURCE_DIR", minfo->package_dir, 1);
setenv("TIX_INSTALL_DIR", destdir, 1);
if ( minfo->sysroot )
setenv("TIX_SYSROOT", minfo->sysroot, 1);
else
unsetenv("TIX_SYSROOT");
setenv("BUILD", minfo->build, 1);
setenv("HOST", minfo->host, 1);
setenv("TARGET", minfo->target, 1);
if ( minfo->prefix )
setenv("PREFIX", minfo->prefix, 1);
else
unsetenv("PREFIX");
if ( minfo->exec_prefix )
setenv("EXEC_PREFIX", minfo->exec_prefix, 1);
else
unsetenv("EXEC_PREFIX");
const char* cmd_argv[] =
{
post_install_cmd,
NULL
};
recovery_execvp(cmd_argv[0], (char* const*) cmd_argv);
err(127, "%s", cmd_argv[0]);
}
static void TixInfo(struct metainfo* minfo)
{
string_array_t* pinfo = &minfo->package_info;
char* tardir_rel = join_paths(tmp_root, "tix");
if ( !tardir_rel )
err(1, "malloc");
char* tixinfo_rel = join_paths(tardir_rel, "tix/tixinfo");
if ( !tixinfo_rel )
err(1, "malloc");
const char* alias = dictionary_get(pinfo, "pkg.alias-of");
const char* runtime_deps = dictionary_get(pinfo, "pkg.runtime-deps");
bool location_independent =
parse_boolean(dictionary_get_def(pinfo,
"pkg.location-independent", "false"));
FILE* tixinfo_fp = fopen(tixinfo_rel, "w");
if ( !tixinfo_fp )
err(1, "`%s'", tixinfo_rel);
fprintf(tixinfo_fp, "tix.version=1\n");
fprintf(tixinfo_fp, "tix.class=tix\n");
fprintf(tixinfo_fp, "tix.platform=%s\n", minfo->host);
fprintf(tixinfo_fp, "pkg.name=%s\n", minfo->package_name);
if ( alias )
fprintf(tixinfo_fp, "pkg.alias-of=%s\n", alias);
else
{
if ( runtime_deps )
fprintf(tixinfo_fp, "pkg.runtime-deps=%s\n", runtime_deps);
if ( location_independent )
fprintf(tixinfo_fp, "pkg.location-independent=true\n");
else
fprintf(tixinfo_fp, "pkg.prefix=%s\n", minfo->prefix);
}
if ( ferror(tixinfo_fp) || fflush(tixinfo_fp) == EOF )
err(1, "write: `%s'", tixinfo_rel);
fclose(tixinfo_fp);
free(tardir_rel);
free(tixinfo_rel);
}
static void Package(struct metainfo* minfo)
{
if ( !fork_and_wait_or_recovery() )
return;
char* tardir_rel = join_paths(tmp_root, "tix");
if ( !tardir_rel )
err(1, "malloc");
char* package_tix = print_string("%s/%s.tix.tar.xz",
minfo->destination, minfo->package_name);
if ( !package_tix )
err(1, "malloc");
printf("Creating `%s'...\n", package_tix);
const char* cmd_argv[] =
{
minfo->tar,
"-C", tardir_rel,
"--remove-files",
"--create",
"--xz",
"--numeric-owner",
"--owner=0",
"--group=0",
"--file", package_tix,
"tix",
"data",
NULL
};
recovery_execvp(cmd_argv[0], (char* const*) cmd_argv);
err(127, "%s", cmd_argv[0]);
}
static void Compile(struct metainfo* minfo)
{
string_array_t* pinfo = &minfo->package_info;
// Detect which build system we are interfacing with.
const char* build_system = dictionary_get(pinfo, "pkg.build-system");
if ( !build_system )
errx(1, "%s: pkg.build-system was not found", minfo->package_info_path);
// Determine whether need to do an out-of-directory build.
const char* use_build_dir_var =
dictionary_get_def(pinfo, "pkg.configure.use-build-directory", "false");
bool use_build_dir = parse_boolean(use_build_dir_var);
if ( use_build_dir )
{
const char* build_rel =
minfo->bootstrapping ? "build-bootstrap" : "build";
minfo->build_dir = join_paths(tmp_root, build_rel);
if ( !minfo->build_dir )
err(1, "malloc");
if ( mkdir(minfo->build_dir, 0777) < 0 )
err(1, "mkdir %s", minfo->build_dir);
}
else
minfo->build_dir = strdup(minfo->package_dir);
// Reset the build directory if needed.
if ( SHOULD_DO_BUILD_STEP(BUILD_STEP_PRE_CLEAN, minfo) &&
!use_build_dir &&
IsDirty(minfo) )
Clean(minfo);
// Configure the build directory if needed.
if ( strcmp(build_system, "configure") == 0 &&
SHOULD_DO_BUILD_STEP(BUILD_STEP_CONFIGURE, minfo) )
Configure(minfo);
if ( SHOULD_DO_BUILD_STEP(BUILD_STEP_BUILD, minfo) )
Build(minfo);
if ( SHOULD_DO_BUILD_STEP(BUILD_STEP_INSTALL, minfo) )
Install(minfo);
if ( SHOULD_DO_BUILD_STEP(BUILD_STEP_POST_INSTALL, minfo) )
PostInstall(minfo);
// Clean the build directory after the successful build.
if ( SHOULD_DO_BUILD_STEP(BUILD_STEP_POST_CLEAN, minfo) )
Clean(minfo);
}
static void Bootstrap(struct metainfo* minfo)
{
struct metainfo newinfo = { 0 };
newinfo.build = minfo->build;
newinfo.build_dir = NULL;
newinfo.destination = NULL;
newinfo.generation = minfo->generation;
newinfo.host = minfo->build;
newinfo.make = minfo->make;
newinfo.makeflags = minfo->makeflags;
newinfo.package_dir = minfo->package_dir;
newinfo.package_info_path = minfo->package_info_path;
newinfo.package_name = minfo->package_name;
newinfo.prefix = join_paths(tmp_root, "bootstrap");
if ( !newinfo.prefix )
err(1, "malloc");
if ( mkdir(newinfo.prefix, 0777) < 0 )
err(1, "mkdir: %s", newinfo.prefix);
newinfo.exec_prefix = newinfo.prefix;
newinfo.sysroot = NULL;
newinfo.tar = minfo->tar;
newinfo.target = minfo->host;
newinfo.tmp = minfo->tmp;
for ( size_t i = 0; i < minfo->package_info.length; i++ )
{
const char* string = minfo->package_info.strings[i];
if ( !strncmp(string, "pkg.", strlen("pkg.")) )
continue;
if ( !strncmp(string, "bootstrap.", strlen("bootstrap.")) )
{
const char* rest = string + strlen("bootstrap.");
char* newstring = print_string("pkg.%s", rest);
if ( !newstring )
err(1, "malloc");
if ( !string_array_append(&newinfo.package_info, newstring) )
err(1, "malloc");
free(newstring);
}
else
{
if ( !string_array_append(&newinfo.package_info, string) )
err(1, "malloc");
}
}
newinfo.start_step = BUILD_STEP_PRE_CLEAN;
newinfo.end_step = BUILD_STEP_POST_CLEAN;
newinfo.bootstrapping = true;
newinfo.cross = false;
Compile(&newinfo);
char* bindir = join_paths(newinfo.prefix, "bin");
if ( !bindir )
err(1, "malloc");
if ( access(bindir, F_OK) == 0 )
append_to_path(bindir);
free(bindir);
char* sbindir = join_paths(newinfo.prefix, "sbin");
if ( !sbindir )
err(1, "malloc");
if ( access(sbindir, F_OK) == 0 )
append_to_path(sbindir);
free(sbindir);
string_array_reset(&newinfo.package_info);
free(newinfo.prefix);
}
static void BuildPackage(struct metainfo* minfo)
{
string_array_t* pinfo = &minfo->package_info;
// Whether this is just an alias for another package.
const char* alias = dictionary_get(pinfo, "pkg.alias-of");
// Determine if the package is location independent.
bool location_independent =
parse_boolean(dictionary_get_def(pinfo, "pkg.location-independent",
"false"));
if ( !alias && !location_independent && !minfo->prefix )
errx(1, "error: %s is not location independent and you need to "
"specify the intended destination prefix using --prefix",
minfo->package_name);
CreateDestination();
// Possibly build a native version of the package to aid cross-compilation.
// This is an anti-feature needed for broken packages that don't properly
// handle this case entirely themselves. There's a few packages that need
// the exact same version around natively in order to cross-compile.
const char* use_bootstrap_var =
dictionary_get_def(pinfo, "pkg.use-bootstrap", "false");
bool use_bootstrap = parse_boolean(use_bootstrap_var);
if ( !alias && use_bootstrap && strcmp(minfo->build, minfo->host) != 0 &&
SHOULD_DO_BUILD_STEP(BUILD_STEP_CONFIGURE, minfo) )
Bootstrap(minfo);
EmitWrappers(minfo);
if ( !alias )
Compile(minfo);
if ( SHOULD_DO_BUILD_STEP(BUILD_STEP_PACKAGE, minfo) )
{
TixInfo(minfo);
Package(minfo);
}
}
static void VerifySourceTixInformation(struct metainfo* minfo)
{
const char* pipath = minfo->package_info_path;
string_array_t* pinfo = &minfo->package_info;
const char* tix_version = VerifyInfoVariable(pinfo, "tix.version", pipath);
if ( atoi(tix_version) != 1 )
errx(1, "error: `%s': tix version `%s' not supported", pipath,
tix_version);
const char* tix_class = VerifyInfoVariable(pinfo, "tix.class", pipath);
if ( !strcmp(tix_class, "tix") )
errx(1, "error: `%s': this object is a binary tix and is already "
"compiled.\n", pipath);
if ( strcmp(tix_class, "srctix") )
errx(1, "error: `%s': tix class `%s' is not `srctix': this object "
"is not suitable for compilation.", pipath, tix_class);
VerifyInfoVariable(pinfo, "pkg.name", pipath);
if ( !dictionary_get(pinfo, "pkg.alias-of") )
VerifyInfoVariable(pinfo, "pkg.build-system", pipath);
}
// TODO: The MAKEFLAGS variable is actually not in the same format as the token
// string language. It appears that GNU make doesn't escape " characters,
// but instead consider them normal characters. This should work as
// expected, though, as long as the MAKEFLAGS variable doesn't contain any
// quote characters.
static void PurifyMakeflags(void)
{
const char* makeflags_environment = getenv("MAKEFLAGS");
if ( !makeflags_environment )
return;
string_array_t makeflags = string_array_make();
string_array_append_token_string(&makeflags, makeflags_environment);
// Discard all the environmental variables in MAKEFLAGS.
for ( size_t i = 0; i < makeflags.length; i++ )
{
char* flag = makeflags.strings[i];
assert(flag);
if ( flag[0] == '-' )
continue;
if ( !strchr(flag, '=') )
continue;
free(flag);
for ( size_t n = i + 1; n < makeflags.length; n++ )
makeflags.strings[n-1] = makeflags.strings[n];
makeflags.length--;
i--;
}
char* new_makeflags_environment = token_string_of_string_array(&makeflags);
assert(new_makeflags_environment);
setenv("MAKEFLAGS", new_makeflags_environment, 1);
free(new_makeflags_environment);
string_array_reset(&makeflags);
}
static void help(FILE* fp, const char* argv0)
{
fprintf(fp, "Usage: %s [OPTION]... PACKAGE\n", argv0);
fprintf(fp, "Compile a source tix into a tix suitable for installation.\n");
}
static void version(FILE* fp, const char* argv0)
{
fprintf(fp, "%s (Sortix) %s\n", argv0, VERSIONSTR);
}
int main(int argc, char* argv[])
{
PurifyMakeflags();
struct metainfo minfo;
memset(&minfo, 0, sizeof(minfo));
minfo.build = NULL;
minfo.destination = strdup(".");
minfo.host = NULL;
char* generation_string = strdup(DEFAULT_GENERATION);
minfo.makeflags = strdup_null(getenv_def("MAKEFLAGS", NULL));
minfo.make = strdup(getenv_def("MAKE", "make"));
minfo.prefix = strdup("");
minfo.exec_prefix = NULL;
minfo.sysroot = NULL;
minfo.target = NULL;
minfo.tar = strdup("tar");
char* tmp = strdup(getenv_def("TMPDIR", "/tmp"));
char* start_step_string = strdup("start");
char* end_step_string = strdup("end");
char* source_package = NULL;
const char* argv0 = argv[0];
for ( int i = 0; i < argc; i++ )
{
const char* arg = argv[i];
if ( arg[0] != '-' || !arg[1] )
continue;
argv[i] = NULL;
if ( !strcmp(arg, "--") )
break;
if ( arg[1] != '-' )
{
char c;
while ( (c = *++arg) ) switch ( c )
{
default:
fprintf(stderr, "%s: unknown option -- '%c'\n", argv0, c);
help(stderr, argv0);
exit(1);
}
}
else if ( !strcmp(arg, "--help") )
help(stdout, argv0), exit(0);
else if ( !strcmp(arg, "--version") )
version(stdout, argv0), exit(0);
else if ( GET_OPTION_VARIABLE("--build", &minfo.build) ) { }
else if ( GET_OPTION_VARIABLE("--destination", &minfo.destination) ) { }
else if ( GET_OPTION_VARIABLE("--end", &end_step_string) ) { }
else if ( GET_OPTION_VARIABLE("--host", &minfo.host) ) { }
else if ( GET_OPTION_VARIABLE("--generation", &generation_string) ) { }
else if ( GET_OPTION_VARIABLE("--makeflags", &minfo.makeflags) ) { }
else if ( GET_OPTION_VARIABLE("--make", &minfo.make) ) { }
else if ( GET_OPTION_VARIABLE("--prefix", &minfo.prefix) ) { }
else if ( GET_OPTION_VARIABLE("--exec-prefix", &minfo.exec_prefix) ) { }
else if ( GET_OPTION_VARIABLE("--source-package", &source_package) ) { }
else if ( GET_OPTION_VARIABLE("--start", &start_step_string) ) { }
else if ( GET_OPTION_VARIABLE("--sysroot", &minfo.sysroot) ) { }
else if ( GET_OPTION_VARIABLE("--target", &minfo.target) ) { }
else if ( GET_OPTION_VARIABLE("--tar", &minfo.tar) ) { }
else if ( GET_OPTION_VARIABLE("--tmp", &minfo.tmp) ) { }
else
{
fprintf(stderr, "%s: unknown option: %s\n", argv0, arg);
help(stderr, argv0);
exit(1);
}
}
minfo.generation = atoi(generation_string);
free(generation_string);
if ( !(minfo.start_step = step_of_step_name(start_step_string)) )
{
fprintf(stderr, "%s: no such step `%s'\n", argv0, start_step_string);
exit(1);
}
if ( !(minfo.end_step = step_of_step_name(end_step_string)) )
{
fprintf(stderr, "%s: no such step `%s'\n", argv0, end_step_string);
exit(1);
}
if ( argc == 1 )
{
help(stdout, argv0);
exit(0);
}
compact_arguments(&argc, &argv);
if ( minfo.prefix && !strcmp(minfo.prefix, "/") )
minfo.prefix[0] = '\0';
if ( argc < 2 )
{
fprintf(stderr, "%s: no package specified\n", argv0);
exit(1);
}
if ( 2 < argc )
{
fprintf(stderr, "%s: unexpected extra operand `%s'\n", argv0, argv[2]);
exit(1);
}
initialize_tmp(tmp, "tixbuild");
const char* srctix = argv[1];
minfo.package_dir = realpath(srctix, NULL);
if ( !minfo.package_dir )
err(1, "%s", srctix);
if ( minfo.build && !minfo.build[0] )
free(minfo.build), minfo.build = NULL;
if ( minfo.host && !minfo.host[0] )
free(minfo.host), minfo.host = NULL;
if ( minfo.target && !minfo.target[0] )
free(minfo.target), minfo.target = NULL;
if ( !minfo.build && !(minfo.build = GetBuildTriplet()) )
err(1, "unable to determine build, use --build");
if ( !minfo.host )
minfo.host = strdup(minfo.build);
if ( !minfo.target )
minfo.target = strdup(minfo.host);
minfo.cross = strcmp(minfo.build, minfo.host) != 0 || minfo.sysroot;
if ( minfo.prefix && !minfo.exec_prefix )
minfo.exec_prefix = strdup(minfo.prefix);
if ( !IsDirectory(minfo.package_dir) )
err(1, "`%s'", minfo.package_dir);
minfo.package_info_path = join_paths(minfo.package_dir, "tixbuildinfo");
if ( !minfo.package_info_path )
err(1, "malloc");
minfo.package_info = string_array_make();
string_array_t* package_info = &minfo.package_info;
if ( !dictionary_append_file_path(package_info, minfo.package_info_path) )
{
if ( errno == ENOENT )
warnx("`%s' doesn't appear to be a source .tix", minfo.package_dir);
err(1, "`%s'", minfo.package_info_path);
}
VerifySourceTixInformation(&minfo);
minfo.package_name = strdup(dictionary_get(package_info, "pkg.name"));
const char* pkg_source_package =
dictionary_get(package_info, "pkg.source-package");
if ( pkg_source_package && !source_package )
{
source_package = print_string("%s/../%s", srctix, pkg_source_package);
if ( !source_package )
err(1, "malloc");
}
if ( source_package )
{
free(minfo.package_dir);
minfo.package_dir = realpath(source_package, NULL);
if ( !minfo.package_dir )
err(1, "%s: looking for source package: %s",
srctix, source_package);
}
BuildPackage(&minfo);
return 0;
}
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