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minlib tech with optimized rebuild #477

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16 changes: 12 additions & 4 deletions cos
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Expand Up @@ -6,7 +6,8 @@ script=
name=
binary=
arch=

minlib=

initialize()
{
case ${arch} in
Expand Down Expand Up @@ -62,10 +63,16 @@ compose()
exit 1
fi

echo "[cos executing] src/composer/target/debug/compose $script $name"
src/composer/target/debug/compose $script $name
if [ -z "$minlib" ]; then
echo "[cos executing] src/composer/target/debug/compose $script $name"
src/composer/target/debug/compose $script $name
local dir="system_binaries/cos_build-${name}"
else
echo "[cos executing] src/composer/target/debug/compose $script $name $minlib"
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I don't think you need to replicate the echo here. If you simply print it out before the conditional, if $minlib is nothing, it won't print out anything. Which should be identical in behavior to this code, without the replication. I might be wrong.

src/composer/target/debug/compose $script $name $minlib
local dir="system_binaries/cos_build_minlib-${name}"

local dir="system_binaries/cos_build-${name}"
fi

tools/build_iso.sh ${dir}/cos.img
}
Expand Down Expand Up @@ -157,6 +164,7 @@ case $1 in
compose )
script=$2
name=$3
minlib=$4
compose
;;
run )
Expand Down
7 changes: 7 additions & 0 deletions src/Makefile
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Expand Up @@ -20,6 +20,13 @@ composer:
component:
$(MAKE) $(MAKEOPTIONS) -C components component

component_minlib:
$(MAKE) $(MAKEOPTIONS) -C components component_minlib

component_dir:
$(MAKE) $(MAKEOPTIONS) -C components component_dir


comps:
$(info )
$(info ***********************************************)
Expand Down
8 changes: 8 additions & 0 deletions src/components/Makefile
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Expand Up @@ -24,3 +24,11 @@ init:

component:
$(MAKE) $(MAKEOPTIONS) -C implementation component

component_minlib:
$(MAKE) $(MAKEOPTIONS) -C lib component_minlib
$(MAKE) $(MAKEOPTIONS) -C interface component_minlib

component_dir:
$(MAKE) $(MAKEOPTIONS) -C implementation component_dir

5 changes: 5 additions & 0 deletions src/components/implementation/Makefile
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Expand Up @@ -8,6 +8,7 @@ all:
$(info ***********************************************)
$(info *********[ Building Implementations ]**********)
$(info ***********************************************)
$(info $(SUBDIRS))
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This is likely just for debugging, I'm assuming. If so, it should not appear in a PR.

@for dir in $(SUBDIRS) ; do \
$(MAKE) $(MAKEOPTIONS) -C $$dir ; \
done
Expand All @@ -25,3 +26,7 @@ distclean:

component:
$(MAKE) $(MAKEOPTIONS) -C $(COMP_INTERFACE) component

component_dir:
$(MAKE) $(MAKEOPTIONS) -C $(COMP_INTERFACE) component_dir

5 changes: 5 additions & 0 deletions src/components/implementation/Makefile.subdir
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Expand Up @@ -77,4 +77,9 @@ clean:
component:
$(MAKE) -C $(COMP_NAME) component


.PHONY: component_dir
component_dir:
$(MAKE) -C $(COMP_NAME) component_dir

-include $(SOURCE_DEPENDENCIES)
17 changes: 13 additions & 4 deletions src/components/implementation/Makefile.subsubdir
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Expand Up @@ -79,28 +79,37 @@ COMP_DEPLIBDIRS_CLEAN=$(foreach D,$(COMP_DEPS_CLEAN),$(if $(wildcard $(INTERDIR)
COMP_EXPIF_OBJS=$(foreach I,$(COMP_INTERFACES_CLEAN),$(INTERDIR)/$(I)/cosrt_s_stub.o)
COMP_DEP_OBJS=$(foreach D,$(COMP_IFDEPS_CLEAN),$(INTERDIR)/$(D)/cosrt_c_stub.o)

DEP_DIRS := $(foreach obj,$(COMP_DEP_OBJS),$(dir $(obj)))
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Maybe a comment block above these to say what they are trying to do?

DEP_DIRS := $(foreach dir,$(DEP_DIRS),$(dir $(patsubst %/,%,$(dir))))
DEP_OBJS := $(foreach obj,$(DEPENDENCY_LIBOBJS),$(dir $(obj)))
LIB_DIRS := $(foreach lib,$(DEPENDENCY_LIBPATH),$(subst -L,,$(lib)))

# NOTE: we're currently ignoring the *variants* library requirements,
# which will break if an interface's code requires a library

comp_header:
$(info | Composing $(COMP_INTERFACE).$(COMP_NAME) for variable $(COMP_VARNAME) by linking with:)
$(info | Exported interfaces: $(COMP_INTERFACES_CLEAN))
$(info | Interface dependencies: $(COMP_IFDEPS_CLEAN))
$(info | Libraries: $(DEPENDENCY_LIBS) $(DEPENDENCY_LIBOBJS))
$(info | Libraries:$(DEPENDENCY_LIBS) $(DEPENDENCY_LIBOBJS))
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If this was an accident, undo it.


.PHONY: component
component: clean comp_header $(COMPOBJ)
$(if $(COMP_INITARGS_FILE), $(CC) $(INCLUDE) $(CFLAGS) -c -o $(COMP_INITARGS_FILE:%.c=%.o) $(COMP_INITARGS_FILE))
$(if $(COMP_INITARGS_FILE), $(CC) $(INCLUDE) $(CFLAGS) $(CFLAGS_MINLIB) -c -o $(COMP_INITARGS_FILE:%.c=%.o) $(COMP_INITARGS_FILE))
$(if $(COMP_TAR_FILE), cp $(COMP_TAR_FILE) $(TAR_SYMBOL_NAME))
$(if $(COMP_TAR_FILE), $(LD) $(LDFLAGS) -r -b binary $(TAR_SYMBOL_NAME) -o $(COMP_TAR_FILE).o; rm $(TAR_SYMBOL_NAME))
$(LD) $(LDFLAGS) -r -o $(COMPNAME).linked_libs_ifs.o $(COMPOBJ) $(COMP_EXPIF_OBJS) $(COMP_DEP_OBJS) $(if $(COMP_INITARGS_FILE), $(COMP_INITARGS_FILE:%.c=%.o)) $(if $(COMP_TAR_FILE), $(COMP_TAR_FILE).o) $(COMP_DEPLIBDIRS_CLEAN) $(COMP_DEPLIBS_CLEAN) $(LIB_FLAGS)
$(MUSLCC) $(COMPNAME).linked_libs_ifs.o $(MUSLCFLAGS) $(LINKFLAG) -o $(COMPNAME).linked_musl.o
$(LD) $(LDFLAGS) -Ttext=$(COMP_BASEADDR) -T $(COMP_LD_SCRIPT) -o $(COMP_OUTPUT) $(COMPNAME).linked_musl.o
$(LD) $(LDFLAGS) $(LDFLAGS_MINLIB) -Ttext=$(COMP_BASEADDR) -T $(COMP_LD_SCRIPT) -o $(COMP_OUTPUT) $(COMPNAME).linked_musl.o

.PHONY: component_dir
component_dir:
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This rule isn't really related to the _dir as a primary abstraction. They are meant to simply output dependencies. So why not compoent_dependecies? Note this change would require changes in many makefiles as they require consistent rule names.

$(info $(LIB_DIRS) $(DEP_DIRS) $(DEP_OBJS))

# NOTE: make CFLAGS/CXXFLAGS/ASFLAGS argument first because it includes kernel headers/musl headers first
%.o:%.c
$(info | [CC] $<: Compiling)
@$(CC) $(CFLAGS) $(INCLUDE) -o $@ -c $<
@$(CC) $(CFLAGS) $(CFLAGS_MINLIB) $(INCLUDE) -o $@ -c $<

%.o:%.cc
$(info | [CXX] $<: Compiling)
Expand Down
2 changes: 1 addition & 1 deletion src/components/implementation/comp_x86_64.ld
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Expand Up @@ -11,7 +11,7 @@ SECTIONS
. = SIZEOF_HEADERS;

/* start the text/read-only sections */
.text : ALIGN(4096) { *(.text*) } :text
.text : ALIGN(4096) { KEEP(*(.text.__cosrt_c_cosrtdefault)) *(.text*) } :text
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I don't understand the spacing on this. Feel free to use multiple lines if that works with the syntax here.

.text : ALIGN(4096) {
    KEEP(*(.text.__cosrt_c_cosrtdefault))
    *(.text*) 
} :text

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My concern with this is this: if this is necessary to keep symbols around, don't we need an automated way to construct all of the symbols, not just the default entry point?

.rodata : { *(.rodata*) }
.eh_frame : { *(.eh_frame*) }

Expand Down
2 changes: 2 additions & 0 deletions src/components/implementation/pong/pingpong/Makefile
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Expand Up @@ -15,4 +15,6 @@ LIBRARY_DEPENDENCIES = component
# the build to fail. The build system does not validate this
# minimality; that's on you!



include Makefile.subsubdir
13 changes: 13 additions & 0 deletions src/components/interface/Makefile
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Expand Up @@ -8,6 +8,7 @@ all:
$(info ***********************************************)
$(info ************[ Building interfaces ]************)
$(info ***********************************************)
$(info $(INTERFACES))
@for dir in $(INTERFACES) ; do \
$(MAKE) $(MAKEOPTIONS) -C $$dir ; \
done
Expand All @@ -24,3 +25,15 @@ cp:

.PHONY: init
init: clean

INTERFACE_DIRS := $(shell echo "$(MINLIB_DIRS)" | tr ' ' '\n' | grep '//interface//')
.PHONY: component_minlib
component_minlib:
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Since this is an interface, not a component, we want a better name for all of this.

Naming is hard!

$(info ***********************************************)
$(info ********[ ReBuilding MinLib Interface]*********)
$(info ***********************************************)
$(info $(INTERFACE_DIRS))
@for dir in $(INTERFACE_DIRS) ; do \
$(MAKE) $(MAKEOPTIONS) -C $$dir clean ; \
$(MAKE) $(MAKEOPTIONS) -C $$dir ; \
done
3 changes: 2 additions & 1 deletion src/components/interface/Makefile.subsubdir
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Expand Up @@ -38,10 +38,11 @@ print:

%.o:%.c
$(info | [CC] Compiling c file $< into $@)
@$(CC) $(CFLAGS) $(DEP_INC) -c -o $(@) $<
@$(CC) $(CFLAGS) $(CFLAGS_MINLIB) $(DEP_INC) -c -o $(@) $<

$(S_SSTUB_OBJ):$(SSTUB_FILE)
$(info | [AS] Creating server asm stubs for $(IFNAME))
$(info | include paths are $(DEP_INC))
@$(AS) -DCOS_SERVER_STUBS $(ASFLAGS) $(DEP_INC) -c -o $@ $^

$(C_UCAP_STUB_OBJ):$(SSTUB_FILE)
Expand Down
16 changes: 16 additions & 0 deletions src/components/lib/Makefile
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Expand Up @@ -82,6 +82,7 @@ all:
$(info **************************************************)
$(info **************[ Building Libraries ]**************)
$(info **************************************************)
$(info $(SUBDIRS))
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Remove debugging print outs.

@for dir in $(SUBDIRS) ; do \
echo "*************************[TASK START]*************************";\
echo " [ Building $$dir ]";\
Expand Down Expand Up @@ -125,3 +126,18 @@ distclean:
echo "*************************[TASK STOP]*************************";\
echo ""; \
done

LIB_DIRS := $(shell echo "$(MINLIB_DIRS)" | tr ' ' '\n' | grep '/lib/')
component_minlib:
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See other comment about this name.

$(info **************************************************)
$(info ***********[ ReBuilding MinLib Library]***********)
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Should be Rebuilding, I think.

$(info **************************************************)
$(info $(LIB_DIRS))
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Similar, remove debugging printouts.

@for dir in $(LIB_DIRS) ; do \
echo "*************************[TASK START]*************************";\
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I really don't like all of this formatting, but since you're just emulating something that was previously in the repo, thank you for being consistent!

echo " [ Building $$dir ]";\
$(MAKE) PLATFORM=$(PLATFORM) $(MAKEOPTIONS) -C $$dir clean || exit $$?; \
$(MAKE) PLATFORM=$(PLATFORM) $(MAKEOPTIONS) -C $$dir || exit $$?; \
echo "*************************[TASK STOP]*************************";\
echo ""; \
done
2 changes: 1 addition & 1 deletion src/components/lib/Makefile.lib
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Expand Up @@ -35,7 +35,7 @@ $(SHLIB_FILE): $(OBJS)

%.o:%.c
$(info | [CC] Compiling C file $< into $@)
@$(CC) $(CFLAGS) $(CINC) $(DEPENDENCY_INCPATH) -c -o $@ $<
@$(CC) $(CFLAGS) $(CFLAGS_MINLIB) $(CINC) $(DEPENDENCY_INCPATH) -c -o $@ $<

# redirect error output to /dev/null so that it will not display
# errors when cleaning, this does not affect gcc's error output when
Expand Down
70 changes: 63 additions & 7 deletions src/composer/src/build.rs
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Expand Up @@ -254,6 +254,7 @@ fn comp_gen_make_cmd(
tar_file: &Option<String>,
id: &ComponentId,
s: &SystemState,
is_minlib: bool,
) -> String {
let c = component(&s, id);
let ds = deps(&s, id);
Expand Down Expand Up @@ -295,14 +296,31 @@ fn comp_gen_make_cmd(
let compid = s.get_named().rmap().get(&c.name).unwrap();
let baseaddr = s.get_address_assignments().component_baseaddr(compid);

let cmd = format!(
let cmd = if is_minlib {
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Lets improve the existing code (before your changes) a little bit!

We can remove the let cmd, and instead if the if is_minlib {... blocks are the last things in the file, what they return, the function will return! So we don't even need the cmd variable.

format!(
r#"make --quiet -C src COMP_INTERFACES="{}" COMP_IFDEPS="{}" COMP_LIBDEPS="" COMP_INTERFACE={} COMP_NAME={} component_dir"#,
if_exp, if_deps, &decomp[0], &decomp[1]
)
}
else {format!(
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Formatting is wrong here. You have to run rustfmt so that it will automatically format it in the conventional way.

r#"make -C src COMP_INTERFACES="{}" COMP_IFDEPS="{}" COMP_LIBDEPS="" COMP_INTERFACE={} COMP_NAME={} COMP_VARNAME={} COMP_OUTPUT={} COMP_BASEADDR={:#X} {} component"#,
if_exp, if_deps, &decomp[0], &decomp[1], &c.name, output_name, baseaddr, &optional_cmds
);
)
};

cmd
}

fn comp_gen_minlib_make_cmd(
minlib_dirs: &String,
cflags_minlib: &String
) -> String {
format!(
r#"make -C src MINLIB_DIRS="{}" CFLAGS_MINLIB="{}" component_minlib"#,
minlib_dirs, cflags_minlib
)
}

fn kern_gen_make_cmd(input_constructor: &String, kern_output: &String, _s: &SystemState) -> String {
format!(
r#"make -C src KERNEL_OUTPUT="{}" CONSTRUCTOR_COMP="{}" plat"#,
Expand All @@ -312,12 +330,14 @@ fn kern_gen_make_cmd(input_constructor: &String, kern_output: &String, _s: &Syst

pub struct DefaultBuilder {
builddir: String,
minlib: bool,
}

impl DefaultBuilder {
pub fn new() -> Self {
DefaultBuilder {
builddir: "/dev/null".to_string(), // must initialize, so error out if you don't
minlib: false,
}
}
}
Expand All @@ -330,15 +350,21 @@ fn compdir_check_build(comp_dir: &String) -> Result<(), String> {

Ok(())
}
use std::process::Command;

impl BuildState for DefaultBuilder {
fn initialize(&mut self, name: &String, _s: &SystemState) -> Result<(), String> {
fn initialize(&mut self, name: &String, _s: &SystemState, minlib: bool) -> Result<(), String> {
let pwd = env::current_dir().unwrap();
let dir = format!("{}/system_binaries/cos_build-{}", pwd.display(), name);

let dir = if minlib {
format!("{}/system_binaries/cos_build-{}-minlib", pwd.display(), name)
} else {
format!("{}/system_binaries/cos_build-{}", pwd.display(), name)
};

reset_dir(&dir)?;
self.builddir = dir;
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self = DefaultBuilder {
    builddir: dir,
    minlib,
};

Is better here.


self.minlib = minlib;
Ok(())
}

Expand Down Expand Up @@ -378,7 +404,37 @@ impl BuildState for DefaultBuilder {
let p = state.get_param_id(&id);
let output_path = self.comp_obj_path(&id, &state)?;

let cmd = comp_gen_make_cmd(&output_path, p.param_prog(), p.param_fs(), &id, &state);
if self.minlib {
//get the related sub directories
let subdirs_cmd = comp_gen_make_cmd(&output_path, p.param_prog(), p.param_fs(), &id, &state, true);
let (out1, err1) = exec_pipeline(vec![subdirs_cmd.clone()]);

if !err1.is_empty() {
return Err(format!("Error in executing pipeline for component_dir: {}", err1));
}

let mut cflag_minlib = "-ffunction-sections -fdata-sections";

//rebuild the files under the related sub directories
let output = Command::new("make")
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Should be able to use exec_pipeline here instead of pulling in the dependency on Command, right? I think you explained why you couldn't, but I can't figure out now.

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Coming back to this now. I'm guessing you need the actual output, and exec_pipeline doesn't provide that. I think that the correct abstraction level is to provide an exec_pipeline variant that returns (stdout, stderr) output strings.

.arg("-C")
.arg("src")
.arg(format!("MINLIB_DIRS={}", out1))
.arg(format!("CFLAGS_MINLIB={}", cflag_minlib))
.arg("component_minlib")
.output()
.expect("Failed to execute make command");

if output.status.success() {
let stdout = String::from_utf8_lossy(&output.stdout);
println!("Output: {}", stdout);
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These seem like they are focused on debugging output? not sure if we really want this output normally.

} else {
let stderr = String::from_utf8_lossy(&output.stderr);
eprintln!("Error: {}", stderr);
}
}

let cmd = comp_gen_make_cmd(&output_path, p.param_prog(), p.param_fs(), &id, &state, false);

let name = state.get_named().ids().get(id).unwrap();
println!(
Expand Down Expand Up @@ -413,7 +469,7 @@ impl BuildState for DefaultBuilder {
let binary = self.comp_obj_path(&c, &s)?;
let argsfile = constructor_serialize_args(&c, &s, self)?;
let tarfile = constructor_tarball_create(&c, &s, self)?;
let cmd = comp_gen_make_cmd(&binary, &argsfile, &tarfile, &c, &s);
let cmd = comp_gen_make_cmd(&binary, &argsfile, &tarfile, &c, &s, false);

let name = s.get_named().ids().get(c).unwrap();
println!(
Expand Down
7 changes: 5 additions & 2 deletions src/composer/src/main.rs
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Expand Up @@ -37,17 +37,20 @@ pub fn exec() -> Result<(), String> {

let arg1 = args.next();
let arg2 = args.next();
let arg3 = args.next(); // Optional third argument

if None == arg1 || None == arg2 {
return Err(format!(
"usage: {} <sysspec>.toml <buildname>",
"usage: {} <sysspec>.toml <buildname> [minlib]",
program_name.unwrap()
));
}

let b_minlib= arg3.as_ref().map(|s| s == "minlib").unwrap_or(false);
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Not sure what the b_ stands for here. Maybe use_minlib?


let mut sys = SystemState::new(arg1.unwrap());
let mut build = DefaultBuilder::new();
build.initialize(&arg2.unwrap(), &sys)?;
build.initialize(&arg2.unwrap(), &sys, b_minlib)?;

sys.add_parsed(SystemSpec::transition(&sys, &mut build)?);
sys.add_named(CompTotOrd::transition(&sys, &mut build)?);
Expand Down
2 changes: 1 addition & 1 deletion src/composer/src/passes.rs
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Expand Up @@ -128,7 +128,7 @@ impl SystemState {
// that file already exists. Use unique names for files, and use the
// component-namespacing of names for per-component files.
pub trait BuildState {
fn initialize(&mut self, name: &String, s: &SystemState) -> Result<(), String>; // must be called *before* the following functions
fn initialize(&mut self, name: &String, s: &SystemState, minlib: bool) -> Result<(), String>; // must be called *before* the following functions
fn file_path(&self, file: &String) -> Result<String, String>; // create a path in the build directory for a file
fn comp_dir_path(&self, c: &ComponentId, state: &SystemState) -> Result<String, String>; // the component's object
fn comp_file_path(
Expand Down
2 changes: 1 addition & 1 deletion src/composer/src/resources.rs
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Expand Up @@ -15,7 +15,7 @@ enum CapRes {
Comp(ComponentId),
}

const BOOT_CAPTBL_FREE: u32 = 60;
const BOOT_CAPTBL_FREE: u32 = 52;

// The equivalent of the C __captbl_cap2sz(c)
fn cap_sz(cap: &CapRes) -> u32 {
Expand Down
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