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& _% G& \8 ]" c+ B( H) Zmake menuconfig 是执行makefile里面的menuconfig目标.
8 n+ s1 T- Q0 |/ t如果后面ARCH =ARM CROSS_COMPILE=arm-linux-的话表明： 编译出来的目标是针对ARM体系结构的。因为是针对ARM体系结构，所以需要使用交叉编译器。使用CROSS_COMPILE=xxx来指定交叉编译器。
# y0 { _% o, q! i7 LCROSS_COMPILE=arm-linux- 意思是制定交叉编译器为arm-linux-XXX。 如：makefile里面会指定CC为arm-linux-gcc。3 D7 |; F: @3 x0 ~+ ?1 n: T5 K
6 j5 P* ?6 s4 R/ m$ J% @5 _$ ]
- X1 B4 U& k! ?# U+ _" h9 P% ^, p
8 U2 O" J# O9 s0 s为了使make命令执行并行处理，-j 选项可以用来指定作业数。
6 ]1 s! J, M# K4 \/ ]; f6 j, S" d4 D8 D# M
$ make -j4 8 E. U: D6 W& P* I% ~( |: f# V6 X
2 q6 q! T" u9 \
作业数是在编译的时候指定主机的CPU个数，所以在脚本中写成一个常量很糟糕。（特别是把编译脚本给其他人的时候。）并行处理的作业数和编译的效率直接相关，所以需要设置合适的作业数量。
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昨天的文章中在编译peRF时，make的任务数能自动设置成CPU的数量。调查了一下它是怎么做的。
3 m3 U. @- s% D- z
. E7 z2 F$ w+ y" Llinux/tools/perf/Makefile& `+ k8 A/ g6 }3 I8 Q
% @) C o3 x2 M5 `; v#
6 t, _9 D- B |# Do a parallel build with multiple jobs, based on the number of CPUs online$ q* K1 B# m, Y/ Y0 X/ U) [
# in this system: 'make -j8' on a 8-CPU system, etc.# H$ `0 G3 F* D, U' a) T# a B v# |1 p
# q n5 A2 D$ m' v- z m7 p; S
# (To override it, run 'make JOBS=1' and similar.)+ O& ^7 H/ D0 u
#
( B4 Y0 m- d) j: @( K4 u0 q4 h( W0 vifeq ($(JOBS),)
7 h0 d& I: @2 |3 g JOBS := $(shell grep -c ^processor /proc/cpuinfo 2>/dev/null)
9 {$ @" I! G& }5 l# C' A! [# { ifeq ($(JOBS),)
, c5 V2 C y. X6 g JOBS := 1( K( l- p( B& z$ a& B; q
endif
) S( ?& P9 o/ e7 \6 {$ cendif4 W+ `6 n3 K' z% r
这种计算了/proc/cpuinfo以processor开头的行的数量。
6 t* \/ M- W# ~0 z( W3 y* e- e: Q1 V# o, [# J" A
这里不使用wc命令来计算匹配的行数，而是用grep -c来获取。; t- ]: |- K8 D+ s/ J2 ]: P
$ D7 b* h" e S8 R' r* F _8 f这里JOBS是CPU的个数，用这个变量在子进程中使用make命令。* Q0 n5 N* L1 ~2 F& v
, _' @! d/ n4 R; `$(MAKE) -f Makefile.perf --no-print-directory -j$(JOBS) O=$(FULL_O) $(SET_DEBUG) $@7 g) R: U+ G1 F0 r5 G! H0 Y) @
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3 \: w$ W" ~3 }, k
2 X" E" E- D3 U0 T$ E6 P
5 Y& k6 m: Z1 P关于make时，通过-j参数指定多线程数目 ]% v+ i5 p) g& g! Q
* e+ p8 Y6 o R. e
之前在折腾crosstool-ng：9 @% m2 M3 O2 c! b
, i0 X+ |3 S7 G! j9 C. T
【记录】crosstool为xscale编译(ct-ng build)过程
) n/ E9 H* ]3 x/ E2 g' \7 N: ^, K8 H% h8 W* m& D/ K
时，就偶尔看到别人用6 m4 T' J! R. N
2 Z; Z4 g% y4 Rct-ng build.4
2 q; v# ?9 ~+ j5 h2 r& r3 p5 ]6 n1 g% u p/ j% o
意思是多线程去编译
/ h6 E- A* R- a1 c! R3 d, W
; m: P. D, g# Q估计底层就是调用的makefile的支持多线程的这个功能。; i4 q/ Y$ I0 `& |9 O8 V! m
# w5 U @8 t6 ~
后来又在别处看到类似的写法了：
. l# A. i M" l, s
% y& V% X( o- H7 B4 OIntroduction to Cross Compilation
8 U# ^, f& H/ B( ?0 J& t" C) q% Q& K$ h' u
中的：
: ]* u# p. H$ ]+ Y$ v* X( N% }! Z* C& T |
1 make
, F. g A" M+ J0 p8 U& ]- ARCH=arm
- CROSS_COMPILE=arm-linux-gnueabi- uImage -j4
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此时，才想到，去查查make的参数：
; o. t7 d( V% s8 n1 k
2 }& ?4 Z2 @0 q9 f8 z. O% `) b（此处是在cygwin中）
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& ^2 t$ K$ F, G; XAdministrator@PC-20130611GART
- l# a, n' D* b: G( q/cygdrive/e/Dev_Root
7 J* G% p9 ]5 c% g6 S2 u$
: T8 @# l# K/ D) amake
0 _& q4 Q8 C$ d% ~
. i4 C1 k9 E- m2 a+ ]--help9 J4 p: k8 L. c# k, x( J
Usage:
, K( q" s7 H& d6 X& q$ t: Q4 bmake' o( Y- I) K7 o: a' n8 [# c
+ n+ X4 K. [# G n0 @5 N* J[options]! N( W4 B, @) y
[target] ...
$ z8 {0 N" i- n- A& A0 KOptions:
4 w% x2 ?, Q4 ~& `. Q& v7 i/ [
* ~* ?2 i! w3 |0 z( V! `-b,, ^$ C7 O% y) \/ V3 H0 S
-m Ignored" i+ g% ]! H3 K K
for
. ~) v; v7 l' X$ n$ ^6 P
9 x) I" r" a0 I* zcompatibility.6 ^# g- i$ k0 K4 s1 `1 e
; _6 o5 ~/ {1 L& m% W-B,
0 n. R% C; v9 w, a0 B$ l- `--always- U9 f5 V/ `$ m f
make- L3 Z( W6 h3 q& e
4 b. P- g6 ?1 S( I% X) }9 j
Unconditionally, S( m( P9 n( d) X, g% m- X
make& q: t/ O4 i6 M) J: t! k
7 b) C) g2 l [( g; Gall+ u8 b0 ]9 r1 `! A
targets.! k4 P/ G& t- j z+ {
8 t9 W4 y' p) }5 S
-C' U9 X0 w$ f/ M' ^9 ]
DIRECTORY, --directory=DIRECTORY" d6 R7 I* B7 i; K9 n0 A& t0 k
/ j2 x3 y' Q7 V. w& i' JChange
4 T+ b7 I* P$ T* \* M& Fto DIRECTORY before doing anything.. K# o! A2 z; @2 k5 ?( u% F
/ L( P! |4 i3 x9 @
-d
' A: X3 g- w! R. Y+ U& vPrint lots of debugging information.5 [; U% J9 N5 h" D& T+ l
+ X) g& n9 v5 z1 W--debug[=FLAGS]
. H \) N2 G6 a3 CPrint various types of debugging information.4 a5 m/ |5 }" u- n
% s- }( n7 r. u \+ p: t
-e,
' b# u5 u9 U3 K" B; e--environment-overrides
) D2 [/ w( s- m" M" `: [ / c4 }2 y- ?' g4 l- E4 f. b
Environment4 V! I I& [ b
variables override makefiles.
8 x0 a$ y5 Y; A$ T' s
" B4 S. T* x7 _3 ?, u8 }! O# ?--
( e: b% @9 T' L2 M* ^0 l. {" ~* yeval- R& Y u! G5 n) I
=STRING
" Q# N" |5 I: y1 o& {Evaluate STRING as a makefile statement.
4 u3 J9 X x6 I, y# Y( B : g+ f, p" s$ t6 n J: U
-f
, }1 N8 { l/ H! L8 {- U. {5 nFILE, --2 e8 [, P. N7 [/ d& _
file+ G& Y' E9 K% f2 v3 ?! D
=FILE,3 l' S. I' N" r8 f* V
--makefile=FILE# B |3 w7 V3 K7 R
{, P. c0 l* _( kRead9 _0 U/ ?) b# c$ z) i1 O7 ^5 T
FILE as a makefile.
# j; {. `# ~4 C4 w& ]0 q4 C # ^5 {" V+ D/ }+ B. v0 C% \
-h,
$ i ^/ _: k: n--help Print this message and
0 L X8 ]3 K4 P9 [6 K8 bexit
7 _) z y7 \+ m( O8 N6 i& |.
% D, t! q5 ?9 E) V2 d" e$ F! j5 K ' U0 x7 @3 L0 v$ w" b
-i,
9 \1 s' \7 F+ P( C, E( a8 V( r--ignore-errors Ignore errors from recipes.
' {8 c; b( z$ l 3 N4 }0 J+ L) C; `
-I; F" B3 q( v4 {) J. g8 H
DIRECTORY, --include-
$ c# L% W; x! ^( q: H$ S6 _dir7 z* Q) N- J) J- }5 q( U6 _
=DIRECTORY
5 K9 d0 Y( D$ u& u/ T# P X 3 } }5 y( }( w: {4 [/ s/ n: K) W
Search
6 t1 {* U; Y; l E+ O( f6 Z" ~DIRECTORY
4 H" {# a6 J: l1 f4 U6 lfor
: u: V) ]: a" }# j& J8 V
8 M% T% _8 `5 F2 d o1 Fincluded z+ g; C9 j( x; y1 M% a% O
makefiles./ S2 k [9 u* X; l
5 o8 J+ a/ s! P6 e& q, v
-j- Q1 Y* q! S O
[N], --jobs[=N] Allow N jobs at once; infinite jobs with no arg.
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& M, i) B& j, A. J6 c e8 n; Q-k,
% N6 s+ Y1 b V- V0 g--keep-going Keep going when some targets can't be made.
: \5 }/ F8 O# w* Q4 _7 ]! e % R z T& A, T* Y3 o
-l
2 l. r- \# o7 y8 E* G- g: c1 \[N], --load-average[=N], --max-load[=N]
5 X2 i2 u, G# W
5 _; d. |- g( i3 d% T- zDon't a8 a8 h4 t+ A; ]$ d% p
start multiple jobs unless load is below N.
; f" _, R. o1 l2 w% J / W* k9 f+ g' r) w6 @
-L,
0 x0 j7 ^5 Q6 A% V; d2 |0 G, Y--check-! `/ y5 A% S) W- z
symlink
; x ?' w0 K7 o8 O-
7 O9 d3 N3 S1 xtimes2 \+ N6 v" M9 n. ]
8 S/ R k* @. v5 i# o: a6 a, b
Use4 w$ I* w! o& q% M2 h' K, C
the latest mtime between symlinks and target.
6 @0 c- F9 E$ ]- A: P! [
1 r( c3 E+ y! q-n,
0 x2 m8 S; ~$ b& O# j--just-print, --dry-run, --recon9 v0 S& o: H9 R9 z# t
2 V0 M- T" M7 ] A9 r) Q- iDon't
/ D. S" {& u: ]$ }7 Cactually run any recipe; just print them.5 K4 j: P& f/ e+ T! J
6 u K7 ^8 J& g& P1 [! R+ A8 n-o) x9 J4 _7 T) P& ~' m0 n
FILE, --old-( |7 c' X F- |2 D; h% V0 e U
file8 ?! _5 X. h" u$ q1 s, Y: u
=FILE,
& P7 P+ A! O* N& @3 F9 E$ G--assume-old=FILE) g- p' {( V' [2 I
& o1 f" q4 D5 y& k! b1 \; H/ EConsider/ J8 o/ e3 T0 R: Q& f+ A2 k
FILE to be very old and don't remake it.( i! w$ g8 c# F
2 v8 c7 j/ v7 C$ ?6 y. K-p,
W/ x9 X2 G7 h- |8 y6 [. J--print-data-base Print
* d- c1 {6 e& gmake
. d' _. w! `; @# [/ d3 t0 ?, { r5 a* w! W's
. y% d% K2 S, M( ? ~! Jinternal database.
: q, ]) r$ o5 ^6 i/ a/ {
. r4 M( N- Z. @$ o ~: j/ B( ~-q,
: Y) r* m' b4 ^/ h) ?- o- x5 a: g--question Run no recipe;
+ ^& E4 b T' b4 Z) L* o' rexit
" g3 c8 J0 w% \& F& d& M; u
/ n. B/ K/ w; C4 Y$ w) p+ f. I) i" X9 sstatus
# _. R/ P3 Y% m! s4 d' _says- S2 i3 `9 O: P1 X
if4 x) G( i3 k, C H) W( @
9 h" I: D( l- Qup
6 n1 C9 T' K) y0 Wto
5 |7 E) V7 U) [8 L( i" b# |date) A! l; f' _5 O/ ~ T0 m. Y% f! y
.
1 ^7 t2 m0 W& m0 A
* A/ y" ?( i9 k-r,. Q9 @4 L* x+ o- D! {% y }$ n8 @
--no-
}, l) Q- q8 N& ubuiltin: l; _2 x5 h( W8 O* g/ k4 Q' U8 z) m* L( B
-rules " G% D& d; u8 s4 S9 v
Disable the built-
' H7 I0 V: W% Nin
6 J8 o% J. X0 y1 f 8 {# A3 J" \- g/ s! E0 m" v
implicit
# i* l1 y! T% F8 `' d- drules.
( n1 \ y a7 j7 x$ S; l
( i% G, {1 Y' T- L( B) B-R,
& ^& |; Q9 N, w4 L--no-+ Y* V9 ~2 F6 D" W2 m: [# P
builtin
g% i6 r. h- ^; O-variables
* T4 l: z) r* i! Z jDisable the built-
1 z! E8 L+ U7 h- u! sin
) k, C+ ]/ ^$ i& B" k# g / h& W/ T' P' j4 ~, R3 x9 k
variable
8 \) _9 P. Z' ^settings.7 n8 h/ N k; q+ s, p
" s: p9 |6 s. @+ L4 Q6 }- \
-s,
3 p4 y! W7 }& G, H/ d( z--silent, --quiet Don't K1 G# i+ w& H: M
echo
8 m* H( K8 |3 [3 u# W; [1 _ " Z; v. S9 m7 `! h1 r6 }2 a1 L
recipes.( P( L, a4 U2 N7 C( \
4 ~; v# A1 g4 T% Y" f3 G. H-S,
6 N, {, l' `1 \) e3 x--no-keep-going, --stop" Q+ R7 j9 b) E; J) h
9 i3 x- F. s5 w5 i7 x5 w0 cTurns& w, B! l' b* _# A
off -k.
4 Z! v) Y; I: K6 M: V
, Z! ?* `5 v9 v- X+ Z-t,4 N+ k* f( c, N6 L- e1 R3 n% K# y
--
a6 Y! O7 V. t# h' W6 Otouch3 ^$ f/ E: s/ g# y1 r: Y( E
; j5 u! y: d6 XTouch) w l; @& ?- I( N
targets instead of remaking them.
" c! R/ I! U# u/ T9 U% D) d - n% ^, D$ h- U: h7 V: ^
--trace
- d+ ?: e+ Y/ gPrint tracing information.1 ^( i0 i; J5 Y
9 j9 Y; |. f( i$ g n3 a, ]% b
-
0 A. n! `* Y% j, m* b5 t3 uv
6 b/ P% q- k/ r: y% H/ U4 [, ^,2 e( N/ {/ n+ d5 d, |% t$ V/ g
--version Print the version number of
- m- I+ D9 q; B; vmake% Q; S/ C2 V+ {
6 ^5 X8 Q. T# s5 c, D: R7 Y0 band2 {9 s* \2 @) m& z0 N3 t- R
exit
0 I* l* Z; y$ k) N.
" O/ v6 y" \9 Z2 l
" t, R" n. K8 u: _& Q-w,
2 R9 u* s4 W# v- j--print-directory Print the current directory.
0 {$ [# U9 q% { ?/ h
0 ]* @+ ^0 }# R o' u8 c--no-print-directory
' \& N( G X9 w$ a" mTurn off -w, even
0 c& {% l, Q0 Jif
7 T1 e |* I, x$ ]. ~' W
9 N* w' m0 P: n2 }& \it' w4 E Q$ H3 t; r- c6 ~; `8 |
was turned on implicitly.: x, Y# D: D, `0 f3 t7 X0 X" e
( e3 ^! l/ h6 e! @ ]' T
-W
: ]0 ]1 L% }; u6 l6 B8 L( R$ q, k0 FFILE, --what-8 v* M# E( u1 \4 L; @! @6 z
if$ h/ U# b, c! G- y [
=FILE,
, d* a7 {3 l2 R6 K( ^) Z--new-
; h3 I0 f# m" jfile+ b' l: f2 X+ \! ?/ F
=FILE,6 R, C" I( s% c |" Q- @
--assume-new=FILE
' d, P; t: s' A, d( X/ K! r % s) _+ \, L7 K! w+ V3 ~; _
Consider
3 O$ |, D! E5 p5 AFILE to be infinitely new.
4 t8 t. ?4 s+ A6 b2 w 6 Y2 h/ M8 o) V/ l
--warn-undefined-variables 0 l: _" ~3 O9 v: B+ u4 u' E2 T
Warn when an undefined variable is referenced.7 S5 ~* v, _8 b
& r2 p& b4 c/ s# _/ ^This
5 @5 `' B! Z0 ~3 c/ `( m/ `program built+ B4 t, s4 M' L, f; _2 I
for
4 \# W$ y' y5 G7 D
( w6 ~1 s* {% P* I. e$ M0 J* x Si686-pc-cygwin9 H* e+ k+ ]% L- l2 J
Report1 I5 m$ _! E$ o# }$ a% {& u5 M
bugs to <bug-
: Z1 ^+ t6 `9 }( d Rmake
! t8 W; K& n/ O5 ?@gnu.org>" _! d: j) J9 ]6 p, A, y
/ q. T- C; X/ d& O% D
Administrator@PC-20130611GART ^$ w9 ?- g# e, X1 [
/cygdrive/e/Dev_Root
" Q/ x9 i0 i) B/ Q$
$ E: v6 r5 X$ L4 a6 v6 x+ p8 i
$ A/ j8 H9 h! @! `% Q$ n. y8 @
* g/ ?4 ]3 S' i( f8 A8 o- H
3 s, B' v. ?4 X; Y+ {) s8 j" E: \0 ?# R. V$ ^, a M$ i2 v
果然对应的-j==–jobs，指的是多线程的意思：$ B! r# I8 H" l5 Z. `
* U8 H* u& G8 a" S6 p, Y l5 O+ X! F
-j
' a7 S& A- W9 Z3 ]8 W5 K* g [N], –jobs[=N] Allow N jobs at once; infinite jobs with no arg.
! ? L. ?7 g. _7 O3 F% t' H- F: l& n8 ^7 K# {) Z
, T9 U- X1 d3 Z6 S
6 j0 q/ i! o; F9 h
用法即：
. J( c' N5 P7 U8 O
) t# I& H% N( ?6 h0 F+ p1 make
3 `; _9 C4 b/ W% t( \2 f3 D; I6 r5 t8 E4 U( J" g5 ~+ i% q
# m/ T+ n$ P) X' A4 D0 ]9 Z# v: ~
或! l* V6 s X: s- T3 s8 ^4 d* z
, f) K. ~* ~( V$ u. G6 w7 u: \% k1 make
# d; J, S* Z5 x0 {8 C1 i! ? k- –jobs=4. t+ j4 w: X! V) V4 t+ g7 ?- Y
/ w) k5 N& X) Y D+ A4 D+ J- g1 C9 f, A- I- R7 A( S2 W' z
make加上-s，表示silent，不输出详细log信息
/ k9 {: z- H/ V' d9 ~: A P% h. [; w
2 i6 u7 g* A0 p之前折腾：
! u' Z1 y! e6 L6 j6 b3 A6 R- Q! C, Z' @) P; c
【记录】尝试用QEMU模拟ARM开发板去加载并运行Uboot，kernel，rootfs
+ m1 o- r" {; k6 M
' D: x5 [6 X( |. b参考的：- |" H/ Y% D8 G9 |; g! |9 x& t
& Z( ]1 K8 k2 g6 m# t$ K/ }1 X2 IVirtual Development Board4 `3 \7 a( S* I D J$ I
4 A6 M/ C3 B' r8 {
中就用到：
/ ?" S5 r1 [5 c
+ a. t: @ U5 j# c7 L. i5 q$ r- sudo
- make! C) S f3 k, w/ |
* O7 h2 E9 M5 c, D
install
: |* j) Q) {+ b+ L- a/ k. E. n ' ~& h* ^6 f$ z; R3 u7 \
-s7 |- C& W( u6 G% S8 g& D' V5 ~: `
make5 _% [6 Q$ m; Z1 ^* n9 G
/ f9 b# Y; r- Q, M
ARCH=arm# I$ U1 ^% C( d6 Z
CROSS_COMPILE=arm-none-linux-gnueabi- versatile_defconfig -s
1 l* ^, c" c- G/ e1 C% pmake
# ]: ^0 L8 I; P+ ^
* U0 ]# L7 _2 ^2 H- c7 b# NARCH=arm! P j0 c- T& K y
CROSS_COMPILE=arm-none-linux-gnueabi- uImage -s
/ J+ T! u! k* b# j9 m; h' {6 D1 c( ]# ]! p6 u& h1 Y' I
/ ]' t3 t! _' L/ i8 H! S: V
$ N; U& B% m3 H* P* W
3 a. e3 A: Q1 G' ~- m& Q! ^+ a$ S# f
其中的-s参数，之前就猜测是silent的意思。
+ l( j' b: @$ l; v# B; Y
, S" u! \6 a% Q: P2 t根本上面的–help输出的信息，果然是：
4 c7 V/ B" o! C
- }( _; m5 D5 W. |6 E-s,
$ X# ?5 d$ q) Z+ L& ~ –silent, –quiet Don’t echo recipes.
- s. Q# l) g- v) x; B" c
& ~) A2 p6 {5 T( j. n1 r2 r; R7 _( `
; p# U) j# A( N-f指定makefile文件
" o Q/ k+ Z. Y) l8 U9 u" U$ F9 P8 Z5 v5 S0 ]
之前就知道的，可以通过-f指定特定的makefile文件的。1 f3 y0 S+ k8 b2 @) n
M( @) x6 V8 ~4 }
背景是：! t! z& z& ]' F
# O ]0 \4 d+ H' ]5 ~: E. P当执行make时，默认会去（当前文件夹下）找名为Makefile的文件, G% o& |* z# b; z" ~5 V
% N" I5 I; j, p& |
如果此处你需要去运行特定文件名的makefile文件，比如my.mk, j# l7 H, c. r- C
$ z. P1 G* C2 P3 O0 {2 S那么就可以通过-f去指定：& D! G: P/ X4 _) l/ ^8 b
7 \: ^( a9 L$ L4 a' N1 make
: g& n9 e5 w* ]% [; T0 U3 X5 e- f( ^1 y! z% M
: k6 L- Q1 [" b' Y8 i' s# L即可。5 u& J ~" ~+ n
% o% J) A4 ~( \: S, i( n/ J8 B- l$ t0 U" w2 t
; _; y) k1 q" P* Z
make help可以用来查看当前支持哪些目标0 f) K5 o1 A6 t b5 h% N' {
2 q2 f+ S: U% W) G一般来说，多数的makefile文件，除了最常见的make all，make clean等最常见的目标之外，往往都会有自己不同的目标供执行，即：
6 R6 q! `/ |; m$ [3 {% v
0 K( a7 D7 x, `" E& ~make xxx
, }6 _; n7 C/ u& X
& P2 V7 S0 d4 wmake yyy5 u% d7 I( v# ]: D1 b7 w* Q
: \9 Q: Z0 d$ I) r1 f! c5 O等等。; g* `: I% }7 w$ d
/ ^, [8 F* k7 s R- v9 {0 U5 C; u
而想要去查看，有哪些xxx和yyy供你使用，可以通过make help去查看。
; @) z3 Q( d7 z& H Z) `1 \
9 Y f# u( b5 S) u" X举例：
: }. ~0 d+ u: }+ o$ v% |! o( e' o* v7 Y0 `' K# y+ e
最近折腾的：
, ~: F* u/ I( v; x( F, V8 I% N& ]/ g+ p5 c
【记录】Ubuntu下为QEMU的arm平台交叉编译BusyBox6 A* h; w* _% U" l" z( Z
; Q% C4 O& Y; g
中的make help的输出，就是：/ y6 @1 w( |5 }( r6 H& |9 q
9 j. I. S# ]8 }8 {crifan@ubuntu:busybox-1.16.0$
, a6 R) ~, M4 zmake! V* A3 O2 k( E7 l! z# [: s
s, B7 A; e6 c5 G
help
" s5 g9 P& ~8 m4 O ?Cleaning:$ g4 f1 m. S2 N/ j7 F2 {
6 P, L( z6 ~4 e l; Fclean
. Y, }. W- p) v1 p1 X- delete temporary files created by build8 \" k0 k5 k5 G F1 G3 d% o* S0 |$ w
# t R. J. u; k4 o( i- M
distclean
- F6 F- B. O7 N) M0 X9 i- delete all non-- ?, Z! u, g0 v6 Y$ E) E
source U' S- f3 [- ]& \; X. A
4 v, o( R$ o& m' d
files/ ~4 K. [! j! [5 Y
(including .config)5 G/ X, e1 u2 e& `) L
+ e- d& u0 n A/ W) R1 c5 Q T) hdoc-clean * k8 G: C* G0 X, `8 d+ B
- delete all generated documentation
1 ^+ V7 w( Z; [/ i0 t1 K- j$ v 5 k! z% G. ~' Z- D" l
3 m# J7 \% b3 m- I
Build:; G* Q/ b, v; B8 z* K
- A. v; b- x3 `/ W
all 1 h' b( ]# Q, h& I; N$ t) A
- Executable and documentation4 e6 I: v$ e: A# {
9 \8 ^1 v0 [/ J1 j) z4 X! ^busybox
: k+ ?$ S" U% n& u0 T- the swiss-army executable# ~' ]! K3 X e: T# L/ Z
3 t: @ N2 `: P5 D
doc 5 X/ _3 k5 y0 u8 A% @; l' k( n
- docs9 B/ M1 e; N' `& I
/BusyBox* n) @( `* Y s" y9 s8 f% `6 o
.{txt,html,1}; K) z& Y! A- D) C
. p* ^; _: u* w. F3 f8 t# J6 phtml
( k. q. j9 _- s- create html-based cross-reference
4 \% |( I, m8 J: R
_9 L, @% l9 O; \! p
1 S; G4 b" f/ P, qConfiguration:: }$ |; ?. \8 E$ H
8 \# y- a9 O, e! g
allnoconfig
# G/ [8 ?4 Q2 o$ Y% }- disable all symbols
7 k( A9 t: ? H( @3 x4 `in% o/ ?5 n/ D0 x. e, H
- ~+ k3 F/ P; e. g$ K
.config
4 ~! [! Y3 [! E, b, S
r) e% ~* W$ ?4 d5 k5 R) G; z( P7 lallyesconfig
$ x: v& K/ n0 M-
( M! c9 z7 K1 Y0 M1 lenable0 [: @8 {3 @0 M" T- Y4 W
, J9 c( ]+ B/ I* |
all* R {4 G, ~2 A" Q i* ^
symbols# R k. b& F J% k* s+ n3 f
in: ]0 L3 q3 q% k1 \
' U- Z4 \2 K" r
.config
! T, @/ A# n# N. U6 Z(see defconfig)3 t- F, A0 \; E0 m ^# p
: ^% s" U& V8 V5 L* F6 zconfig
. w0 T5 x4 }/ f) j* A- text based configurator (of last resort)
; r/ Z7 j5 u g, Q# S a: N4 d% c6 ]2 j/ I/ H
defconfig
' m( ?; h, b9 \+ p9 C0 V" d-
) B- b/ @/ k* V, J# ]set( V! _% H+ K' I4 I0 U1 o0 k) l
8 S1 E9 }0 A# r q# U/ k: d.config
" Z+ |; L8 S% C6 i& Q/ l: yto largest generic configuration
/ i, X' d- I3 ]4 E& F) h
7 y0 K+ j$ c8 V- Emenuconfig / l, `2 G) _; w, k7 E7 G2 X
- interactive curses-based configurator- i I. ?7 i/ C0 j( E
/ v" |9 F" b! N" n poldconfig : j' F' r; @4 x* H3 t, d, c, s
- resolve any unresolved symbols
# ~1 I# k! a' Q6 [; Win6 E/ s) R0 X. S
# h5 ?% o% s6 n, L" }' m w.config+ v. Q5 i/ F3 G
/ }( A3 J- R5 v: u" [hosttools
1 [2 }6 K+ E8 H* i- build
, i2 t7 ~1 {6 qsed6 [9 T( k0 [9 e7 R0 L. C& w6 [
0 D h& }1 o- G! J
for, }4 k5 f1 A1 u* C2 S9 j
0 ^8 d8 ]& }. M2 D1 p
the
8 `4 |/ \3 r7 }host.3 N; o, d! U7 K1 U4 _
2 G' T) ` T& i* q/ n1 `
You& ?2 g8 P9 }9 k9 j. @# R
can use these commands
3 g5 P; R. \+ Z- L- S4 qif$ {1 ^' u/ l# s! q5 l+ b2 u7 m' F
6 V, q/ p0 @$ V i6 `/ B2 P! mthe1 | A- S% Y; A5 T
commands on the host \/ J9 X6 f" m! ?) U/ [8 w6 z
0 n! m# O9 }7 @: `. Q8 h8 ~% b
is1 p, ?7 j4 C1 T% h3 o
unusable. Afterwards use it like:
& y6 |) N. d0 T' b0 q5 {8 H
! G2 K% J' e$ e6 U7 cmake' q1 Y* g) ^! X, R. P) X
. P' }: N; G0 \! GSED=; w8 y6 J% ^" ]+ d" N( m
"/home/crifan/develop/embedded/qemu/rootfs/busybox/busybox-1.16.0/sed"$ L* C- N4 B: t5 |- d6 i- z: b
' T$ n8 m: t5 h! B0 E , w p- i8 E2 H
Installation:+ u& L% Z1 |8 t1 ~" T; P* h3 H E
6 k, `# U- M# l3 H7 o# Y
install
; A( u. g7 |6 b8 r
& D2 ^ s/ E f; F0 }+ R1 F-
- M3 y$ `6 E" N, M: Iinstall
, m2 b' g6 M: U + d# l5 J* `$ V' [' a' {1 f: f
busybox' Z" } o2 m/ N {. P7 P3 S. o2 E, z
into CONFIG_PREFIX
. q8 y7 y& K2 B4 B $ Y9 ` M6 Z# Q, @' o3 M( j# _, }/ g- a. Q
uninstall
0 V1 n8 x7 L# S$ O, B, O 1 E- f' k" S: v, P0 D6 U
( h: u- N% s) ^6 h8 h
Development:
! t! _4 S/ K: h9 j/ C
% Z% d" W& b: k$ A5 G) rbaseline 7 E# ^/ U5 D3 k r( E
- create busybox_old' A/ Z7 w) y8 \
for
9 L' [; e4 ?& o
' E" H' K4 l: I# _/ }- [# G( t- I; ubloatcheck.
8 c) v1 a" h# z- X0 C; B( k3 G
" N5 V9 ]0 ^5 O( T! [' Ybloatcheck
- Z( L" w/ Z/ W" s% ]* `- show size difference between old and new versions2 M- `9 B8 D4 Y3 W. w3 u
4 g" e, \* u% k+ t. ~9 S# L9 _: |check
/ }) o* u* Y% X. K( T9 W- run the3 y% Y( o, u1 N. A6 G! c
test
2 I9 n* T! d3 u- b! }
# z! Y$ ?0 k |suite$ M% q& z( q! r' a
for B, v6 ~# S0 _
: s# E+ j4 @) u z. o: K: T! {1 }all
5 Q, z6 N; G1 H1 uapplets
$ [; u( }7 C% ] |! l; g9 `0 G' ^0 E$ p
checkhelp % F* d* n, |6 `
- check% _, o: G9 h' Z3 h8 y% ^
for! G! i( N0 q: o
% {; h+ ]; h9 V5 o$ ~
missing
& p3 k! p) u4 y8 q$ l5 d# Bhelp-entries. e) n' t+ y# z& n2 x/ R8 @
in+ I" V% S8 f7 @' M3 ^# @
( G W2 s( d% |1 eConfig.
9 u- u7 m5 H/ \& d5 {. Rin4 a! R5 ~# f" s0 a
3 H, p) p ]2 U. E+ {9 Urandconfig - T2 U7 U4 s3 r) W8 S. ]: i
- generate a random configuration; B! t# ~7 `2 ^# ~6 O
+ W f$ Z' |8 p1 f- s8 d- U
release 9 a5 I( D' a# l
- create a distribution tarball; x" n2 u( T, U- X
4 J0 ~6 i8 Y" L0 }
sizes : ^/ \0 `0 s; D V/ Y: X/ i' e
- show size of all enabled busybox symbols
$ G: g2 f3 B& a' n ) S$ c" K' ]( f
objsizes , e( n# u9 M/ m5 O
- show size of each .o object built
7 u6 \4 ]+ O! B7 |
* T& k& |9 D% I( p. ?, v- x; Rbigdata 7 t7 H* H5 ^7 \
- show data objects, biggest first6 R7 E1 d& G2 }1 n
$ ~! b% e1 v% |stksizes
* j- [& o- `6 s/ M) S. I3 N6 Z- show stack, d" [: L v' G% f
users2 a; }: b. m* A# ]7 y* |
,
1 V4 A" ]. D! h% Ybiggest first
! C) z* [% j4 p; c9 H
& X A5 j$ z- {# l% A- B
, w. @% r3 w9 q; H( X% ~1 C
, I5 e7 _# W% z d如此，就知道了：
1 o- G; v+ G9 b: u
) A- y2 l" F, g
3 {& \+ T$ }( U" s. x& ^9 b/ a当前的busybox的makefile中，支持如此多的目标，而想要查看当前busybox的各种stack信息，就可以去试试那个stksizes了：- g0 i& w7 n- e/ R* z! W
+ r+ U1 u6 u# H: Pcrifan@ubuntu:busybox-1.16.0$
, j0 Z w$ k0 I o+ b9 Umake+ ]6 c# g5 V4 z- z
. |) W9 x/ O2 |9 l U6 g" mARCH=arm
- ?1 n" q: e- BCROSS_COMPILE=arm-xscale-linux-gnueabi- stksizes
8 h; B+ {. q% A! f* ?( X4 @arm-xscale-linux-gnueabi-objdump B6 |3 R4 `/ l7 M
-d busybox_unstripped |6 a) g/ j# f* ]) `, V
/home/crifan/develop/embedded/qemu/rootfs/busybox/busybox-16 E: }% d3 r9 D e
.16.0
$ q, X2 ~2 Q1 T/scripts/checkstack
; t2 t2 V( o* O# t+ r- Z.pl
) b0 N2 C8 [1 g- U) a( O: ?! @0 parm |
. Z5 f: I2 I! t1 ^$ w8 kuniq
. [+ ^2 u& q: `' ~$ v2 W3 Vbuffered_vfprintf
0 [- S* L& d5 O[busybox_unstripped]: 8384
, W3 d& n: b# \8 y3 b5 M4 ]phys_pages_info
1 P5 o _( P7 `! e[busybox_unstripped]: 8192" d8 W8 I* o" C/ z
__get_nprocs: @2 q }! F! u" u
[busybox_unstripped]: 8192
" u X. @7 h) Q9 m, {7 Q__res_vinit0 U8 T' O* ]$ {$ N
[busybox_unstripped]: 81920 G9 Z% M* T* V* I$ p1 n; c6 ~8 z
_IO_wfile_seekoff3 T& s2 I( }4 F5 [( A- D9 p
[busybox_unstripped]: 42246 M: P# p+ }1 J! ?( `1 ?
__unix_grantpt
3 ^7 r1 H: N% u0 J[busybox_unstripped]: 4224
9 S4 w7 a! | ~5 N/ t/ B4 R_IO_vfwprintf
- H* P7 x- k9 V \# ^# t[busybox_unstripped]: 4224
6 o" s) Q. I" g0 Z2 t) d' n/ O9 o( [grantpt
c" ^3 v Q8 e3 a, x[busybox_unstripped]: 4160
* j1 x* Y. l t1 g) r# \9 kbb_full_fd_action
8 T4 @+ K( b- e0 S% m3 {% S[busybox_unstripped]: 4096
0 Y M4 ?7 Y( r) Z G6 G% N2 Nfind_list_entry2
- M9 r# ?) @0 M0 ~* B[busybox_unstripped]: 40968 s$ L+ f. d( M! ?! e
readlink_main
, S; V% n6 V8 E/ ^1 E, m* Z- W, v[busybox_unstripped]: 4096
( n% h, L9 ^& R( c1 z6 F4 ?: E2 \pid_is_exec# s* x0 L& m' ^# F' i Z
[busybox_unstripped]: 4096, b v- B3 y' m O7 Q& N
execle. s5 h9 B5 q3 x Z" L0 N
[busybox_unstripped]: 4096, u6 Y* I+ w$ Z* s0 W
execl
! b( ?. I6 }9 x) E! I; o[busybox_unstripped]: 4096
# Y: j# A) B' `. H F2 u6 N6 Vexeclp# P3 w o; v4 z" N. ^; T
[busybox_unstripped]: 4096) y# r* e# Q" e: c- a
_dl_get_origin- z6 `* L7 \( [/ s( {
[busybox_unstripped]: 4096
A) ^; E0 `& qipaddr_list_or_flush; q: H. b- X6 G: m
[busybox_unstripped]: 36644 v' Q" i% y2 y; x7 m& s& S
iproute_list_or_flush% ?0 L' I0 B O {" A6 s" N
[busybox_unstripped]: 3648
B7 U& N2 M0 _: O" m* v- M__c32
G, F' C$ q: I- e[busybox_unstripped]: 3600
" D% I7 ^: Y5 g& Vbuffered_vfprintf! j S! ~) \0 O% v# n. V3 [ X
[busybox_unstripped]: 3302+ S2 M, D* [! L2 X+ U* [
__mpatan2 D U0 H6 j# Y1 D: C; F, V3 P
[busybox_unstripped]: 2976. m* Z0 v6 ^* L, N) ^- _9 ?; M
fallbackSort) [) A7 z4 k9 \( a9 d$ O$ I5 j( H: B
[busybox_unstripped]: 2928- @/ ^$ f: h& P; C2 s% k
atan2Mp.constprop.0! D5 q0 g! d' ~6 u8 x* \# w
[busybox_unstripped]: 2304
5 B( ]) N, c( E* A- ? e% a2 f__mpsqrt
) C+ ?9 w" L+ V/ F[busybox_unstripped]: 2304
7 m3 ]2 A: C, ]) S4 R: T4 @__slowpow
8 d {, X1 J; K* ]/ f, n& s* L2 a5 v[busybox_unstripped]: 23049 V/ I7 \7 n# Q0 h, ?7 b
cal_main( }% R$ [/ }# U7 k
[busybox_unstripped]: 2288! q; ^9 u* b& b" a5 O' H
internal_fnmatch5 w3 d- `9 i. b4 ^
[busybox_unstripped]: 2144
8 e( G- H0 u( U: G3 jdoCommands
, C5 @& j3 U* w' H# i- @[busybox_unstripped]: 2112
7 ` Q1 y$ G9 f) i: `__slowexp
2 m! Z5 o B% D[busybox_unstripped]: 1984# u$ X! l8 L" r! l: k9 t
__mpexp
0 ?. T9 `' u' Z0 f[busybox_unstripped]: 1984' h3 Z* y) m$ T& |' U/ h$ v
normalized
% m/ a; X! J2 ~7 s+ p[busybox_unstripped]: 19685 X0 {* [$ v8 r5 @1 A
get_next_block
" l% |2 \- Y" B7 W[busybox_unstripped]: 1968. H5 i) P4 r" C, N
identify_from_stdin
3 I0 |( \7 ?# i& Z: ][busybox_unstripped]: 1792
5 `' p# ^# p7 s4 C; u1 O& ~5 { s% t__ieee754_log
* D3 z K6 ?! A2 K' P, N4 a[busybox_unstripped]: 1648
, y G3 T+ x% h8 f3 F: chuft_build
/ G: L+ J$ @6 q5 d' g[busybox_unstripped]: 1488) ~( l0 @9 I& r
iproute_modify
5 @/ N9 `& s7 Q8 I2 [% y[busybox_unstripped]: 1376
0 J2 {, Y& W+ q% T* j0 Osvc_getreq_common' O% e9 S9 N$ H( E/ h5 F
[busybox_unstripped]: 1328
# p6 V/ |3 [' B1 {9 @, {__mpatan27 s% e) O% ^! c2 Y6 a
[busybox_unstripped]: 13126 E3 \1 Q1 M& b2 i$ ]3 H
inflate_block5 p {7 }) u& N; i5 D+ @) R. S; I
[busybox_unstripped]: 1296, M( s5 }0 t+ G* X) o
_IO_vfprintf. i- M7 ]' s9 c
[busybox_unstripped]: 1296/ X- s& r! D9 s1 a* c7 S+ {1 l# K
__libc_message
% C" U+ |! Y V* N) t8 R J[busybox_unstripped]: 1280% B8 D3 ^( x& S0 p# Z; M
getlogin_r5 w- J3 B' W2 F4 u9 Z1 \
[busybox_unstripped]: 1280+ e7 y0 K3 W* `6 @! U3 A. e5 C
mainQSort3.constprop.2
! V2 y1 t' S, t8 T" V* Q3 O, F8 u[busybox_unstripped]: 1264
/ y: C# C4 X/ f2 Y# [2 U__gettextparse
: @& t! U% M( P/ u/ L# J; l[busybox_unstripped]: 1248
8 j& U, @. k6 I' g9 Q9 D- i& R }iproute_get' `- n/ J! |% n0 T
[busybox_unstripped]: 1184$ ~7 L7 B. b$ m: G0 z
rx_main/ Z: {8 Q& D8 A' a1 W s1 F4 o
[busybox_unstripped]: 1152
! t" s0 x& V9 q) `- `& a. Y2 z& y( |ether_wake_main
, }+ x' C% c8 w3 H3 q( a[busybox_unstripped]: 1152' c; X/ D( C. ^- r
procps_scan
% N' ]6 Z! @: l. r1 V" ^[busybox_unstripped]: 1152
& h5 C r! d! v( s, F6 Junwind_phase2_forced" @7 V7 q1 e- E4 w
[busybox_unstripped]: 1152
8 ^: g! c, [5 s# D: j$ ]3 Pbuild_trtable
2 X6 ]5 E! T+ R3 @5 }1 F, Q$ C# f[busybox_unstripped]: 1126& a- Y9 W6 Z8 H" {: F! J* O5 V
wget_main4 N" G' q7 ]( k
[busybox_unstripped]: 1120 s+ {2 e9 h* e$ Z. V( `1 W4 d
iprule_modify- F E: A# O3 \+ ?8 ^5 O; j' ~4 q' C0 @
[busybox_unstripped]: 1120
1 x$ l `" i4 A( Ygetopt32
* `) V' M1 o# l5 g# v `1 O/ B# a3 G[busybox_unstripped]: 1104
% w) y, u1 M) m3 ]/ y_svcauth_des; h2 N" i& A3 s* a; U
[busybox_unstripped]: 10885 E, Y) T# o$ \! o; W
two_way_long_needle
0 }* l$ M; D3 h& V+ M[busybox_unstripped]: 10566 \ C3 r1 V8 Z6 P4 j# p7 w, `/ K
ether_hostton
7 z, ], {1 v/ v7 b- I+ L[busybox_unstripped]: 1056; D6 I7 X4 B& s$ D
check_existence_through_netlink
* ?4 z# c9 f. v2 j% I[busybox_unstripped]: 1040
1 O4 z( \' V3 m" K, g. l1 J# btwo_way_long_needle' |! j( c4 S: ]: ]
[busybox_unstripped]: 1040
* i. \/ F# V0 }( x" Q4 L. Uclnt_sperror
- O0 d( s. l; k+ x0 g; `% O[busybox_unstripped]: 1040
( m; B$ g2 G# C- s& p* Gclnt_spcreateerror
5 s( ~% n: Q1 k( S! {[busybox_unstripped]: 1040
2 R' H: P! M+ C* ^_dl_signal_error- e% G* E1 b) j) T& z* [6 [) I
[busybox_unstripped]: 10409 R G0 I+ d" i' P' D
internal_fnwmatch
1 a: [, h4 [: v. t, I2 c6 ?& w1 m* [5 v[busybox_unstripped]: 1030
' Z# K3 e4 F* ?1 _* O1 o, D7 abad_zone6 M% _) ? g, r m) q% G' y
[busybox_unstripped]: 1024
$ B- ?' |+ z1 A h% }get_dirsize& p7 f7 f0 Q0 S
[busybox_unstripped]: 1024
0 i8 P7 e9 R/ L$ Q; u, n- m. O1 {map_block2 n# Z* y# q4 ?3 Q1 @ V, s3 k) G4 `
[busybox_unstripped]: 1024
: e. e1 q7 m( kmap_block
" l( @8 Y% W$ C4 F& D[busybox_unstripped]: 1024
. z% x$ P, l( HaddLines
$ A3 {3 [# q+ o! y' O6 f7 X[busybox_unstripped]: 1024
% K. s: E7 E$ R% k1 a, h3 MgetNum" G* J+ p* c6 m2 {8 h
[busybox_unstripped]: 1024
+ J# ^+ P0 e) v- b0 V. y" k. iperror_internal O9 a. ^1 W+ R" x
[busybox_unstripped]: 1024
, p4 i! C5 i. T__getmntent_r
0 Y1 o. H0 C. X8 M[busybox_unstripped]: 1024
- @; V, B/ J/ {; p__mpsin" l; ^" @; D0 C' w/ S
[busybox_unstripped]: 996
" i: i) ^+ Q! J8 c8 o$ u! G* Z__mpcos
7 h- s/ }6 }- p- v" Z[busybox_unstripped]: 9969 E Y, @- U" U% W: j9 E
__mpsin1
+ M/ D: [6 s5 {" B) F[busybox_unstripped]: 992
# X2 ~9 L! t, Y5 W6 |; r* ?8 W' k# ^__mpcos1 @* \5 r% f. g) j5 R
[busybox_unstripped]: 992
8 C; u4 U q) f: h* V B1 e. m& z__sin32
- t, N% F( y3 F" g' w! v( k[busybox_unstripped]: 9883 V5 b" k* y8 T k g) M3 k
__cos32
" u4 k: _( ?. m3 x; u* ]% [, b[busybox_unstripped]: 988' v1 `( ?+ ?- s( h$ E! N* H
__mpranred
2 s9 L/ D4 T" z; T[busybox_unstripped]: 988
: ~. P0 F) }! b, p# Q__mplog9 ^) s/ Q& v/ S1 d: g0 s* h' h
[busybox_unstripped]: 984, ]5 i6 F! ~/ d5 t2 n. r; n* C' U5 l
udhcpc_main, D. V+ ?# W+ b# b
[busybox_unstripped]: 884+ r7 _3 G! r4 ?
dhcprelay_main1 Y9 B( M0 @: F) l2 {, W
[busybox_unstripped]: 836; {$ r$ D) @% U' O/ V
udhcpd_main5 n1 t) l3 U' k) `
[busybox_unstripped]: 824( A3 L$ B5 u+ G
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发表于 2019-11-27 15:14
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