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make menuconfig 是执行makefile里面的menuconfig目标.# ~9 C7 l! g, L: G6 H8 z* I! j
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。, ?7 ? o0 C+ K. G2 |
CROSS_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。* V) X* [6 L2 q$ Y3 \' g
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为了使make命令执行并行处理,-j 选项可以用来指定作业数。5 p9 m/ p1 R3 O5 L
/ w/ ?0 O7 O* L; m
$ make -j4
5 c$ U; p7 B% W3 w! m6 |/ J) g) w z
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。
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linux/tools/perf/Makefile* _) ~- k% `/ c5 m' e
1 J" p1 e3 i4 G$ u6 D" ^#
8 [9 X* ^3 t- a& M/ N4 i# Do a parallel build with multiple jobs, based on the number of CPUs online
; |( ^, [- z9 X8 l0 `! G: W# in this system: 'make -j8' on a 8-CPU system, etc.$ |$ h: f5 }: Q, Y
#& @9 z/ k! }" ]+ }! B$ q
# (To override it, run 'make JOBS=1' and similar.)! v) j1 ]' g# D9 F8 ` g
#
* b6 j- ^( |5 H2 Nifeq ($(JOBS),)9 Y5 y: T% Y c, l
JOBS := $(shell grep -c ^processor /proc/cpuinfo 2>/dev/null)
3 W/ y: Y4 d7 p8 k q& x* ?3 i ifeq ($(JOBS),)$ i$ ]8 q( l! P
JOBS := 1
: D M9 w I: W7 X endif8 z3 O3 d) W8 o+ k* r
endif
' U2 S+ N9 h$ z2 I7 Z9 N- A这种计算了/proc/cpuinfo以processor开头的行的数量。# g! c1 G% ?9 O+ j1 c; d
* u" o. S* e% {& D+ T2 H1 }* V这里不使用wc命令来计算匹配的行数,而是用grep -c来获取。( r' i- N9 d$ m8 e5 g
* m& @5 x9 d L" n8 }! x+ s* e
这里JOBS是CPU的个数,用这个变量在子进程中使用make命令。
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$(MAKE) -f Makefile.perf --no-print-directory -j$(JOBS) O=$(FULL_O) $(SET_DEBUG) $@2 x9 C/ O' i. _. q6 v
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关于make时,通过-j参数指定多线程数目; a9 d/ o( X1 y, q2 D9 E9 k/ ^* s1 M
$ M" M/ P+ B8 [, w5 r9 K; L
之前在折腾crosstool-ng:
7 o, V( E" ^+ B( z5 t4 y
$ R2 f$ _8 i5 }& Y* p. R J【记录】crosstool为xscale编译(ct-ng build)过程% I) }* G! F- B2 B' G y1 n
/ `0 ` ?0 G% w1 Z8 v$ _时,就偶尔看到别人用
/ w4 l$ h5 g& \( z
9 Y) |7 a# L# R0 y8 ^( w7 Cct-ng build.4. N# [& B* |$ Z* v2 g% j" s- S1 u
7 r0 F8 n6 r! L' [
意思是多线程去编译
* o0 C+ S8 F* e Z8 j9 P2 k( A( {3 V7 u+ o' d
估计底层就是调用的makefile的支持多线程的这个功能。
( C8 b& [* n; r
" t0 c6 x! w, n0 A2 E" Z0 D3 d后来又在别处看到类似的写法了:. h9 O8 H: N) n9 M6 `
% a. w- W* j* Q" d5 x/ i/ F: D$ mIntroduction to Cross Compilation+ k! V0 _0 p$ Y, W* F
# w9 }4 r+ X( k t# r3 o中的:
1 `# h7 e1 r: U0 J4 y, [* N+ D f1 a7 [) ~" w
1 make b- N3 n, A3 O
- ARCH=arm
- CROSS_COMPILE=arm-linux-gnueabi- uImage -j4
& u7 b$ ~1 j3 M; t
& N+ n+ F" W1 e$ o) L' J% l, ~) i6 A! Y
此时,才想到,去查查make的参数:5 n* I" W( K/ j- x5 ?
; a6 F/ [8 {$ D: g* _(此处是在cygwin中): `" c+ @( [1 Q+ P; f0 f8 b
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/ D2 ]8 O% m& a* X$ s0 |Administrator@PC-20130611GART; f2 Y% n. f3 P
/cygdrive/e/Dev_Root
g( e/ I+ j+ Z$
7 m# H: {7 a% B7 O& g+ Kmake
/ Y: k6 X* E* W0 c5 b9 d . A$ a v* }: p! P% y1 K. h9 A
--help8 m5 ~0 U+ r. l8 y! }( b0 v% _8 n" K
Usage:
2 u. f4 a6 x. B/ \7 L4 z- l1 t0 ~7 gmake! B8 F% F5 B+ T
' M% O( _# T$ A; G[options]
- a( }5 `7 c# y. x$ ? V[target] ... H; ]- O! C. }' c
Options:
8 F7 Z: |- z5 D. h \ A( q4 b- X, l) \% B
-b,: F4 B) Q1 ^) ~' k+ W) k2 G
-m Ignored/ w6 |! U$ X7 k
for) t7 N4 w, V4 p4 r* x* |8 i. W1 [$ G6 H
* v% A. B# b3 U; t+ s, {
compatibility.
) X3 x9 C$ P0 H/ H. E' D! S9 o , s/ O3 @! I8 Q* @ c( W6 W( W
-B,: i+ Q4 y7 \. B$ \' o$ d7 o
--always-
. i* j! t' M, f6 p5 M& U C6 Ymake
7 \% a# V3 g% t( b; }9 i 4 L. _1 h- g% j2 j
Unconditionally
! z- W' J8 y9 b, _make
% y+ ~; U+ X4 h6 M 4 R9 b2 K/ ^; x( M' I: X% a- z
all( T1 d/ G3 D) q! m
targets.& h( u' D& j- k; h6 {1 r
; n5 P2 ] W8 j$ u! q# `9 d% ~-C
5 h! b4 l7 v2 u7 a: GDIRECTORY, --directory=DIRECTORY& a8 y& _9 `% @! e
" y/ r+ ?: z8 k. _Change
1 _% I' O9 {7 Y/ o! Hto DIRECTORY before doing anything.
, o- j. L4 k) U( C
) x9 z7 }# T$ r-d
9 C4 K5 L' j8 SPrint lots of debugging information.
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--debug[=FLAGS] Y1 u3 {2 U5 `. V) G- u4 M
Print various types of debugging information.
! d) ?1 P, _7 p7 Z w # K. q; ^; H2 c$ r; ^" y
-e,
6 U' v& t5 g3 h1 V( k0 G--environment-overrides
9 \3 P m9 F& }; X * u4 ]9 v! ^6 _& p
Environment
" o7 O+ o5 ?' ^variables override makefiles.: }5 j* I2 t& X5 ^( n' C
^4 M# Y \0 ?3 |" L--. e2 V1 D# F/ r' k. d
eval
0 V& a: X0 Q8 T2 C$ x. m=STRING ; t& p' ^! e9 t5 R: [3 g
Evaluate STRING as a makefile statement.) J& ?& D( z! G; c: E
+ ~ X# `) M' F* `: o' `6 t, c
-f8 M# ^2 @1 R( A
FILE, --8 D7 h4 U4 s6 ~: S9 I) v( Q* [, @$ R
file
+ K: B' V6 d1 K=FILE,0 [; g6 [+ P: e( g% \6 J
--makefile=FILE" `' a E! {$ R: j! U
1 H: g+ T+ p4 H
Read
P6 M% e) r6 ]! C! cFILE as a makefile.
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-h,, a% V4 I% r6 B8 m4 u
--help Print this message and
6 d' i: R4 N7 {, |" cexit
. V1 |% q( R5 H. S/ B.3 U0 a" g3 Z4 c# p5 Z8 ?- r) r
5 d; m& }+ [ ~% L D6 _' ^6 Z1 w U
-i,
2 l! p8 ?. o9 M1 d( J9 T--ignore-errors Ignore errors from recipes.6 R P; L" q8 X
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-I
* Y& P, [. {* ]- x+ n0 I# gDIRECTORY, --include-
: z9 F2 l& D' K1 hdir. m. `* g4 F6 a0 c
=DIRECTORY
9 ?; [+ e4 w4 K# V , s; v' ~0 |% a# `9 K. r8 Q1 p% B, `
Search; _( k3 v4 b3 E) j6 ]- e' Z
DIRECTORY; u. V7 Z3 w/ G; w
for
! C# X+ r) b" ?4 U8 H# r: C) ]
( q" M2 { m0 @* s' A+ }included
: F Q4 S2 `. B S. F! z d# rmakefiles.
- S# I& U6 X1 W- x- D# Z. ?5 }9 z
8 `) E9 s( n& G* d-j
1 r& s0 H v6 r% M8 B[N], --jobs[=N] Allow N jobs at once; infinite jobs with no arg.+ U# I/ k0 K/ y- i$ Q7 j' Q, f
7 U( G6 @# U; |- D& v* N" m0 W
-k,. ^0 ^" A8 {' q% E% K+ d
--keep-going Keep going when some targets can't be made.2 z6 _% I: k% @9 b2 _$ U3 v
# o( G# t1 E' s Z. Z1 u. u-l8 o! B: F, B8 h0 y: Z0 H8 g j
[N], --load-average[=N], --max-load[=N] \' A$ m( Q2 z7 \7 m! d% G
; v: |" d. V) |4 k5 v6 a8 ~+ y7 k7 b9 aDon't
! y' |- {3 [* M1 w3 Cstart multiple jobs unless load is below N.
" M3 V* w7 B3 u- ]+ r 0 }1 X3 [+ {3 d
-L,
: a( P* t+ k, o b2 {9 F--check-) T9 l# V* R' U2 T9 e$ u# o8 q3 b6 g
symlink
5 g+ |. b9 {+ Z, \! _( U8 W-0 O J. a) ]$ B$ u" B+ u2 x6 x+ W
times
6 x4 O$ h6 K) C1 u
7 @' e2 J: S" h- Y* C$ lUse
( }- g3 ?/ T7 Z9 w! f" S) zthe latest mtime between symlinks and target.
- X1 C5 \9 P3 C/ G! u( _; [9 U* y : E) J0 M( [( G. W, o/ M
-n,
/ }2 Z5 z/ O9 `/ B5 g" g5 R--just-print, --dry-run, --recon. R( C/ Y. \% L4 K& U
1 J0 u- F' V0 H, i& L5 k; z
Don't
& ^1 [- P: i" [3 [. Wactually run any recipe; just print them.2 i4 ^" }# u$ P/ t I( \+ D+ m
% `8 d5 A& j) p* e( l$ I
-o9 |3 e% {8 E9 [$ |. B) ~9 J
FILE, --old-
7 v4 U# y/ X: w% H7 X O6 x* Xfile
, X4 t+ I; T! B* p=FILE,
5 r# ?* d+ D: g--assume-old=FILE& H6 @$ t6 J2 ?7 t: t; u
7 ]8 r( Z* k$ k7 z6 B* r5 KConsider$ h e- c) E2 U
FILE to be very old and don't remake it.
8 G6 b1 |, e4 e2 y2 y5 c7 {
9 @( s. l/ u. g* m. J7 y-p,2 m: ]3 S: n3 z, H4 o0 V/ ?) Q
--print-data-base Print
5 v" B* h u! d3 L8 C; kmake
& W$ F4 g+ Z3 s7 ~( m& N's
* T7 w! Z5 `& O" q2 N( finternal database.
& O- H7 v6 r7 t; `8 y
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--question Run no recipe;" e$ x0 R, n$ t7 }
exit
# |, ^& T2 X2 a4 f N, G6 } 9 N+ t# i/ ~) y# b- ~8 H
status
* ^7 C3 |/ ]7 S5 {( w k9 Psays
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' |( M2 g# k5 {
up
& q$ T P& x5 P) ~: X# [to3 _/ W) g/ I6 z3 C U+ G. G
date
: q. f2 d- v' T0 f7 J$ ]8 g.! C8 k0 I6 Y: h0 S; X2 M7 ^
8 |5 K- M7 M0 T, k" M% |-r,! m0 a( y% n: O9 S# g3 y! w
--no-: Z1 @1 @5 T9 H% }
builtin% D8 y/ W+ M. \; K
-rules
% b1 h6 V* o+ n$ z/ D. a, XDisable the built-
- [1 X9 \5 I4 Z$ Sin- P a( }% ? P. c$ `6 R
! j8 _8 M, A- y, n4 J. x& |. ximplicit
1 i0 @# d. N7 z6 ]9 L5 }rules.
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" |1 Q! A& P- d2 D4 H/ Z# K# X-R, L( q- Q7 ]$ s- t) E2 ^" A
--no-
" D) u3 n6 ]; @7 z: ubuiltin
! b8 ?& A. `7 }) u A! a; B-variables - X, O. U" g! y- K+ u, i8 i# z, n
Disable the built-; h O- Q e% I0 M$ l$ K/ m
in' ?9 ]% ~( T9 i
" p; y! _% \: s4 W5 fvariable( G$ \; f/ [$ z; S, F
settings." m5 J3 o7 {- J' @* H: k% D
" `: P' v( O) C' U4 Y2 {-s,* ?" u$ c4 T* v/ h2 l$ X/ ^
--silent, --quiet Don't* ]1 M% ?+ E0 O2 e: a
echo
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recipes.
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6 v3 B4 z/ r8 M3 n { J-S,
0 q0 t" C. F, Z! b: ~( `--no-keep-going, --stop B; p5 n/ A/ S' {" x3 n4 j: t4 s
5 m% x. g4 p4 {. b/ }$ |
Turns
3 N. ]3 b' ?' o# C/ ^9 Moff -k.8 P2 F- Q* n) z+ H) t. ]; t
* }# ?% M- f% E) S. i
-t,
- }, Q6 B+ V/ S4 C" U6 M/ }, n--
$ t+ K# l! Y- ~9 O P0 Ptouch% f$ z4 q+ n% @7 F3 r/ g
! E4 R- M! n! j9 `" f/ K5 _. L3 wTouch, U- r4 C: \+ G9 ~) D
targets instead of remaking them.7 F V- x8 ]& `0 e
0 C( O$ q* Z+ [6 @* D' w: T4 a7 n--trace
# v6 }4 T" ^2 _. a6 WPrint tracing information.
7 W- T1 |$ @% V+ d4 q5 [5 V
! q( \; t3 @) | o7 e7 h( j: B y- C-
, j& s4 C# u) s0 S) J; l" Yv
& d3 j- r6 J2 p5 A* x,
' q# g# \: Z. _5 I4 C6 \3 D--version Print the version number of
) i" m2 ^& n! }0 [4 f vmake
9 S& t6 T' h; k. \* j: `, W/ V; n" x 3 k# Z4 Y3 N2 |# s( G% h& ?
and ~; x2 T# K3 ^ ]
exit1 @: @, j" p4 W+ J# E
.
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, `/ A& n T) Y-w,; Q5 B$ s/ y4 n4 f3 }
--print-directory Print the current directory.
+ Z5 j: K) K5 {. @8 x) u, G4 @
( [7 u: x9 J+ g) b; h4 T: [0 K' n--no-print-directory
7 r. M0 `3 g1 ?! z, _+ }Turn off -w, even! L0 W& n. U R4 x; r
if: h# F& _6 [* B/ j! m! s
+ L4 U. [9 t) O Q9 C
it3 h# Z* x9 k( P) S
was turned on implicitly.
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-W- w/ ^% {% @8 e2 B2 _0 E
FILE, --what-* @8 @# L) E/ D- l9 `0 I$ _) A
if3 k) ~! C4 v5 w+ _5 f3 E
=FILE,3 a+ Q6 ]# i2 U; `4 ~8 O
--new-9 Z+ V6 X$ c* K& e% h( o% X
file
: i1 r) A( s5 \! X! ] T5 p=FILE,
* A4 F3 Y' |. {4 h8 o--assume-new=FILE
( b% _* R! i5 t! [1 u. J9 [ + A+ L$ T$ q. K$ }0 J; F3 L" I' |- F
Consider
9 @" j1 h0 Y- PFILE to be infinitely new.
* G# H" o, ]' [" t/ ~1 e 5 Y e/ { B! L8 i
--warn-undefined-variables 5 w/ n, M2 p* k. P
Warn when an undefined variable is referenced.
1 E" f. }) M3 }8 A5 f
9 G2 H3 l# C0 l8 H5 h U, [' ~This1 D& R+ g5 T2 i- X0 s9 y/ Q+ X
program built
0 w5 [: T# n+ K/ [1 Q% lfor k% J8 J) v9 ^" @& {9 u
1 Y3 _/ l, ]0 [0 n$ zi686-pc-cygwin2 v8 Y$ t/ O% E
Report
; L' r+ a% y; K( C. T+ _2 ibugs to <bug-
. p' c2 x& J. Q1 N! bmake7 N o' o. D8 c7 O
@gnu.org># A: q5 j- p) `( i+ ]( F
; Y }( s- j* x3 o. f# x& H- nAdministrator@PC-20130611GART; W! s) @' C) B- q6 h. K
/cygdrive/e/Dev_Root
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: V$ C3 I# }& F/ ^: ?
$ m9 m% w E7 @- g8 ], Q. J3 ]# x9 l7 r2 S3 _$ r
4 [: G* c& H' Z& i
) D. Z+ [. d: |# X* @7 o* t0 d9 ^
果然对应的-j==–jobs,指的是多线程的意思:
. a; |( U* Z# f1 z# F, b. ^6 K% J1 |: V o/ z2 V) g# z8 ]
-j: P2 L* {+ l! d: v; E
[N], –jobs[=N] Allow N jobs at once; infinite jobs with no arg.
+ _& e- B: G* z2 Q, g0 D: {- P& K W8 @
4 W: d; ]9 m& f/ S. T- R, g& H" f$ u1 d) y1 S: q
2 {4 Y$ m' }3 H2 |. W, W1 J& M
用法即:
2 B7 ^4 H N6 W: o1 O- [$ O
' H6 t( c* }) X! V/ x/ R1 make8 w; N1 c3 j: r
- –j
- 4# E i$ A! s/ t' q- D; N5 h0 q0 @
' a0 F7 Z9 s3 \0 x
" S: O& H5 k! }: @- l6 T或) ~, u: E2 \) P ~) j7 |
* @, L/ o* I, Q) V2 B1 make, {# f% K2 X( d/ \, Q1 E
- –jobs=47 o$ y+ r3 d5 Q+ M+ L: a- n
' M2 ~" ]- c( g; v+ ?! p0 i9 H
. p# p& S8 J( p3 K% @make加上-s,表示silent,不输出详细log信息) p- V2 x d1 h; p+ c; g
% k+ M$ `1 U8 V- i3 ~9 b9 B
之前折腾:. i7 M- f9 V. K: H" H, B$ m7 B& r
3 [8 U0 S" R. Q l _! A8 o' O* R- [) _【记录】尝试用QEMU模拟ARM开发板去加载并运行Uboot,kernel,rootfs* M' }+ O( y5 y: b; h4 c0 W3 {7 H( J
7 G* m/ u3 N. t+ ?$ Z! M- T参考的:
! w0 f+ I# |; |
3 n/ R' V$ ~ lVirtual Development Board3 g' g( H: |) A. F/ G: ~) ]$ o i
* Q0 q! n$ J* w; U中就用到:
$ L& o% a! O" w, Y1 k
6 N- ]) K! M# {$ s4 |- sudo
- make
9 c7 n8 v* W: z3 H9 y2 f- P * j& }% [0 T+ t7 ?' I
install
8 Y% z" }- l4 U4 y ^; e 8 a) s. n. k1 m3 W. }- A5 w
-s# s9 t# B5 v5 ?6 ]& n1 _# u
make/ w" P9 n3 {3 R6 G$ @
+ Q' }2 y9 C# { R* H2 t7 y8 Q
ARCH=arm9 a2 [3 @7 I# k- n. Q1 `
CROSS_COMPILE=arm-none-linux-gnueabi- versatile_defconfig -s
! P0 o9 {. D7 I+ a# X) j5 P5 @make8 V. q: [4 @# M/ d; Z1 r0 i
5 t, m3 n, k. G e2 d" l
ARCH=arm
9 Z$ h' ^# g' g. U R" T7 ?! DCROSS_COMPILE=arm-none-linux-gnueabi- uImage -s
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4 o: H: }0 A( [$ U7 l& _! B, P' G. F8 Z8 b5 a
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$ k6 y. x( H {* r' y; I( Q
" m8 }& ?2 h" o7 C. X( ?" O9 K9 a8 u
其中的-s参数,之前就猜测是silent的意思。
& v* W2 t' L2 x n2 ?, l8 P+ M. q+ M
根本上面的–help输出的信息,果然是:
: |- ]' C6 J0 u% ?" t
- a' k. \1 _) ]0 k! p* P-s,* Q, Z) V4 u3 }! O9 Q' s
–silent, –quiet Don’t echo recipes.6 F" X* C( f3 J# U L0 ]
& J4 x+ B: A2 s- X% T9 U
: }6 o6 \( V& Q r' J* V
* ?+ g* @0 G7 ]-f指定makefile文件& y' v$ y [) C6 {% N! \' ?, I
) `$ A& V0 e- D) Y1 ?# d之前就知道的,可以通过-f指定特定的makefile文件的。
- m a+ F4 H* N* p" d" p4 M' @( }/ F1 i( h. l/ p# c* R
背景是:
0 F9 ?* T7 c( c, N
; c+ [1 l/ D4 s- X当执行make时,默认会去(当前文件夹下)找名为Makefile的文件
% X* a" ~2 g7 x4 Z2 \+ I. s5 [" C% z. O z3 G" L; v) U; S: J3 z' L
如果此处你需要去运行特定文件名的makefile文件,比如my.mk
5 a. t6 m+ `% S; \3 n1 I( _
1 j5 V! ]. ?6 ~那么就可以通过-f去指定:; f6 l; Y: P5 {
! _, N0 a: q4 ~; ^3 ~1 u6 h1 make |8 U" k/ n1 q8 v1 g9 { [$ ^% i
- –f
- my.mk! g$ ]8 }, i( r% x* v+ h
- p6 {" Q; D! q# }- S
- k) p; Y! x, @& D2 T* B
即可。# |; n: w% a8 S8 K7 n( p) e+ s
/ x9 v0 G; b R; ]
. r5 F, ]+ u% e* L% B( ~- A2 I+ }# Q3 J6 Q" i# |5 o
make help可以用来查看当前支持哪些目标
. P- B" {5 l: W! K
- D" ^+ r* b7 E* s2 g8 o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:0 W0 S a8 I4 D/ G" ~
% C6 A5 f/ i9 y3 c, { o/ W5 A
make xxx
1 K5 c. j$ O; \3 e( D) @5 Q; A! N
Q* L9 p9 w9 i4 a6 M- emake yyy0 s. e) s6 H% Q
; j A: ~3 H6 x9 j5 |+ j# W9 C+ _
等等。" Q: f- f' z( L3 l# ?& }6 V0 D: t
6 p2 {# v+ R% ^- N7 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。* k* w* A4 R/ x& Q; P/ {/ _
5 S; _/ y- B2 p- h
举例:
( K$ q3 m0 r) C; `1 N
6 o: j& J3 f2 z5 m7 v0 l最近折腾的:. e3 @$ L7 E! Q i2 D
& _( w z: F3 ^9 c7 n【记录】Ubuntu下为QEMU的arm平台交叉编译BusyBox$ \5 Q9 {" I$ u' C, {
" B; B3 [) m, J. N3 [+ @# j
中的make help的输出,就是:( o5 h4 i, o) c0 f! Z; t j
4 C9 m6 O0 p; n9 C) s" i$ _crifan@ubuntu:busybox-1.16.0$- c8 B6 e! ~' V% H8 c: C- v
make" b& P0 J1 k% l$ C7 f. W' j! O
, Y) f% ~5 ^4 y1 u/ W" Ihelp
" o2 d1 P- k& O* u6 bCleaning:
# \2 M7 w J3 x2 h/ m $ U! w) } C( ^' Z+ T
clean * b1 |- a) t- b9 J: K' ?" W
- delete temporary files created by build
8 Z+ {( M5 C y/ T% J# \, Y & Y+ Z9 t/ A* t$ V* n
distclean
7 V, Q6 u. T% U( j2 Z9 Y$ E7 P+ U- delete all non-
" ]" d, o9 { R* u+ l) Gsource
2 B$ z8 ?* a A) _9 H: b. x * e4 k. a1 T% r
files
, Z- M9 Q7 J8 a( P3 o# q! K0 Y(including .config)
* p; c% L$ k3 R/ P2 e & x2 \, s( M3 Z3 n* `
doc-clean 2 u& C5 n S* C
- delete all generated documentation
* F: I- O7 |) g9 P& [" [3 r ; P, b9 s( c0 z! x" w
: S6 k& f0 W) XBuild:
6 d7 V( x+ B- D4 I/ l3 G- r9 v
& z, E; i7 l, y. _! D6 A5 tall 7 ^2 l$ Z( u5 f' Q7 E
- Executable and documentation
( J! b3 [# s* |9 c* f5 b$ O, E
8 F) F4 \" F( ?& H) Ubusybox % c) b$ w+ ~7 f
- the swiss-army executable2 [: @; L% V% [1 c: }% |- ]
* H5 t. ^9 i$ G4 W3 D
doc
/ {2 |& R! r$ u* t7 I1 a- docs
! r( k. N) n8 F; l, h8 H/BusyBox
8 f; _2 m- {7 K4 j# g/ j.{txt,html,1}
0 K+ Z0 T. m. N1 h# \& \ ; o$ S6 [; [3 k9 n9 _$ D
html
- j$ N0 Y4 H7 T' }' e& |* c! H- create html-based cross-reference
. U6 M& i; a' ]' O
( I( s: K( P! l7 z- a) ^, h9 L y
( S5 {8 w5 D6 E qConfiguration:# I8 W, d7 X0 l7 }; o' l+ Q
! ^6 D! p+ Q! V+ c: z
allnoconfig # [2 o5 p" Y+ \* G
- disable all symbols
9 G! y1 m) _: _# Rin+ H# F) j4 I( T) D" i& q2 a
& L3 s' ^7 {1 X2 y; J.config* [ P j* O/ k$ P* K
) k, k, q ^# h' t; J! N
allyesconfig : Z2 K7 o q! M b" j; Q7 H
-* x& p% G( J& W* t6 x5 v2 O$ b& ^0 M& ~9 y# l
enable
. Y- l0 t3 ~/ \* l" [( j! j" M) n! G7 c
) F; h1 S @: ^4 w; {' ^all
. m) ?9 i( u, j, W$ Y4 _symbols
4 h8 g/ e. J1 g7 Z5 m7 T) nin
8 N* x; ~9 x, D2 ^( [" e
7 [ {7 c' J4 X, x6 a0 S' @' ].config$ [) ] t2 G4 r2 _
(see defconfig)4 D$ t$ c$ Q* h2 q' g
8 i+ [2 S% l! \3 _+ J+ I" econfig
: _: T! V! l+ G9 v8 Y0 k- text based configurator (of last resort)" Z- ~' Z6 h/ y" M
3 T! Q6 D4 F2 u
defconfig , {5 K \9 n- _$ \
-
. u/ p9 U# `4 q) A+ R. a. [* t+ Eset
$ `) c4 q( [9 M0 u9 Z/ s : D: \2 y9 i$ m
.config
+ R9 W9 V, Q( R }to largest generic configuration
% v2 @: f$ L, g/ \- I8 F: U7 P 7 r# F4 n4 f- L' d" j6 a
menuconfig " @: G, i: M* n9 }
- interactive curses-based configurator
/ i0 W! A) W; Q5 B + ^3 i! [7 i/ X9 h4 H
oldconfig 3 U& E# A' S- m! @3 h/ m
- resolve any unresolved symbols
% B* x1 N! N9 iin4 l1 n# o) @1 S0 K L3 _% {) A
- P2 H" g% b+ {" z3 V4 z" {. ?9 E.config
: S. ~8 Q9 x$ W ; j- [9 m& q$ d" \
hosttools ' E! b; O& a) g" J3 V0 E! j
- build
H Z, h- @: L( osed
" I1 i1 d$ I0 b" d! h
/ r: q# ~" u, O" cfor
+ b" M' _8 ?! L. @. U& p) Q
& Q _! k( {& Q6 t, R; Gthe( J$ h N- C4 K% d5 {
host.
/ r* m% P' W6 M% N
: x) M& i% e6 [! h8 ]& KYou, e0 o- M' G0 i! n+ g( S
can use these commands, t9 C. _" n5 s9 G0 X6 x
if
$ ~) }* k6 p7 ?, _ 6 w( ^7 O( Y% u5 L, N0 Q1 m
the
) k5 S; b6 R+ j7 P, T7 }8 [; ucommands on the host
" K# h( o# C) h
- N/ i3 {$ o8 ]8 M/ M- Wis& T- X' H* J; F I3 F* ]
unusable. Afterwards use it like:* G( s0 \) y. k Y; {7 D
2 X2 C/ x, ~3 c C( @make
5 N0 S% b7 E% r
) `9 g- }7 k& s0 wSED=
; o" e- A7 I8 D* F7 d* M" l2 ?"/home/crifan/develop/embedded/qemu/rootfs/busybox/busybox-1.16.0/sed"- t0 H% X' o4 _/ c. ]5 C
5 R' a% X: M0 \1 x! u" }* g ! k4 ]% V9 V) U& a8 r! B
Installation:. p* w7 v0 J- _1 }
8 l, ?$ r( N: R+ T" R. n. q
install; ?+ s- f$ I T# A6 z
- w- t% l; x& P1 {
-
' H7 B: v" c+ _$ [& m9 Uinstall! A A$ V, {) M) G2 k( W/ H2 V" a( d+ N
" ^+ D0 } L1 j+ y: ]1 v- kbusybox
, q" W4 ~, s' K. f9 o" J: linto CONFIG_PREFIX
0 m4 ~5 [: T9 e- ]$ x , N; p, N" N# m
uninstall
3 W, P* k; k) ^- f6 I ; n' c3 e- n/ m- c' N7 K; [
8 N" ^9 {1 D- w8 {* M! J" D/ b
Development:
5 {) e# n7 u* d" _* u- D7 d5 t 7 M+ ^) z l6 b. G( C( \
baseline
n3 ^) l0 g T: S$ u. D- create busybox_old
" A% T% h2 A: p/ yfor
: B$ u8 K z4 V / q7 n7 j$ W& C. ]6 N) Q3 j
bloatcheck.- T+ y* P1 q; `" X5 k
- u0 V: r" [: i& c
bloatcheck
$ } L+ @; H4 h8 [. M0 [3 f, L+ G- show size difference between old and new versions
) W$ A& Z. K" x' {' |# Q- e
+ A* Y$ j/ i6 Ncheck 1 U" E1 _6 u" p# s
- run the Q8 s2 B1 a; n" {9 d
test' l2 v/ n7 X6 D0 g+ k7 R N/ e. x4 V- r
" x D& H6 K! n( A8 O
suite0 p: w' I9 r! ?; A4 u
for
5 c4 H8 s( \ r% S7 s% J " b$ v2 U1 G' n0 t' |
all3 k; |, X- N+ r
applets9 G+ U k5 c3 N! S8 O0 l- s3 l/ N
- e. C( G8 s1 u& Acheckhelp 1 A" W4 Y. r* D. T
- check
: M* x: [ \$ N$ [7 Z, s; H6 yfor, T% o% x( P7 A4 E. v
' [2 z/ u+ [0 [+ J' J+ q" ^2 q6 o
missing
! C( }; }( z1 T( bhelp-entries
" y1 X8 v* U1 p2 Q' T( Jin
" y" S7 V" P/ n" a
9 ], y, O. j* QConfig.
0 i( M8 s' Y% m6 D, t- l4 f' v2 Vin
* ], x3 c4 N+ a4 L8 m3 ~1 ?" L! ^
6 p9 W3 e: B9 V& l# S7 M7 G8 F' y7 ]randconfig 8 E8 e( V( S: x' d
- generate a random configuration0 ^9 K: @9 k: {" @3 ?* I- z
0 f/ O( u. |* [2 }8 R! n9 G
release
; `5 t$ @7 }7 F3 J- create a distribution tarball8 P1 `/ T# p0 B) n
2 q. X" n$ a% O V& p" tsizes ( T2 E2 S) B2 h: g! i' U
- show size of all enabled busybox symbols5 C! ]8 s# p* a- \, w
" l" F0 d5 x3 [) c* w/ M7 s
objsizes $ }/ ?2 T- `! h! ^
- show size of each .o object built
1 r; U6 P* f4 [
4 S9 Y8 t9 o* S! A5 P* `3 fbigdata - F' X2 h6 J) n x2 G# U+ @$ d
- show data objects, biggest first2 f; U/ b5 L6 D& \2 ^( A; I
# v- P6 O3 O% m! y/ P& j
stksizes
0 G, {2 q, u* E I |" H" H- show stack+ }, q0 x: S$ S+ I; y& C F- f# U
users
' Q- T- Q/ J) R- `' W* n7 g,
" N. m1 Y- a5 S: @) W3 g" nbiggest first M |" e2 K1 q$ {8 w
* Z, b- N z& d( [: Q0 N- \, u+ n2 A0 q x8 c+ Z
0 Q9 m9 w/ N& Q. \) Z
如此,就知道了:1 W P3 c* k8 R. V. B8 w) E
; r; W6 A- H) \. x) |5 t
7 _/ y" @; }& z. {
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:
: [" d0 k! N1 {# N1 n& p0 j/ i2 P
0 J _' m+ ?: U3 F A8 y Jcrifan@ubuntu:busybox-1.16.0$7 W+ M! d2 {6 S7 V& `
make1 `' D. b) N/ e, {. L" k
" i- S, f H; r6 r" p' e+ kARCH=arm
" v# K. U& K/ g" OCROSS_COMPILE=arm-xscale-linux-gnueabi- stksizes
, w8 m$ m0 s9 n$ Farm-xscale-linux-gnueabi-objdump
+ P- O( p* k5 K& h! p: P& m-d busybox_unstripped |
$ P: J& z3 U5 j: O1 O/home/crifan/develop/embedded/qemu/rootfs/busybox/busybox-1
. f0 Y$ t% y$ q+ O0 Y/ `% {. J.16.0
% f2 K# Y/ \0 f% k/scripts/checkstack
+ Z& N/ d7 V5 Y: D: P. |.pl
5 Z, v: |* Y+ }: s( uarm | F. y2 S/ b2 g* n/ g& V* m
uniq
# H3 U; }, S% W" P6 Hbuffered_vfprintf3 J- B7 V7 y- ~+ b W# w/ P( X2 S
[busybox_unstripped]: 83849 ]7 {' l$ I# c+ g: `( T( t
phys_pages_info( E, |0 ~* B$ f
[busybox_unstripped]: 8192
" w- x5 F, x3 j/ i7 Z) G__get_nprocs6 f( {( r1 G& {% d
[busybox_unstripped]: 8192
& g5 x) V" O; g+ P! q# e$ A, j__res_vinit& o8 R8 Y2 x/ ^/ i
[busybox_unstripped]: 8192
+ |! ?( m! T; x_IO_wfile_seekoff1 ~5 A! B5 v* R/ w+ L0 |
[busybox_unstripped]: 4224" Z% l1 Y! U; P$ C8 ?
__unix_grantpt9 t) I7 b! I/ G' e5 b! d1 S3 f
[busybox_unstripped]: 4224
5 c7 U7 ?3 D$ P& k) E9 R% H7 __IO_vfwprintf
2 I- M$ s. n( x6 G- J5 j+ K6 W[busybox_unstripped]: 4224
0 t5 R) |. S7 k* w; N7 Pgrantpt$ B x; s6 p; C5 C. T9 A
[busybox_unstripped]: 41601 ]4 |1 M& U' o1 t
bb_full_fd_action
- a2 M' N; j" K[busybox_unstripped]: 4096" W, {1 n5 H3 Y
find_list_entry2) o; A' |6 q# a
[busybox_unstripped]: 4096( P. T; d# y4 m) y8 k$ w1 W. B
readlink_main4 ~( u1 r! K* q% n5 T# S# I
[busybox_unstripped]: 4096+ j- L5 q* O8 D
pid_is_exec
, C2 v& ?0 }. `" g2 T, q4 u[busybox_unstripped]: 4096
+ I1 U+ [4 O& r' {5 ?execle
* @% s* K* S* G' E[busybox_unstripped]: 4096
6 L6 w0 {$ t4 A* pexecl1 M1 ?- C# h& N* l0 O$ k
[busybox_unstripped]: 4096
7 J% ~4 ~" O4 I' h2 f9 Lexeclp! S! i% k5 S0 J
[busybox_unstripped]: 4096
! H j4 ]& N4 l# K0 E4 x_dl_get_origin
2 N. Y6 d2 N, ~4 O4 ][busybox_unstripped]: 4096
6 g Z& [$ Q9 m% X0 L4 wipaddr_list_or_flush
% z) U0 D) c' x. K6 X. ^[busybox_unstripped]: 3664
% Y$ W5 G- V r ~% I$ K1 Fiproute_list_or_flush
5 D2 X1 M8 D1 l( s[busybox_unstripped]: 3648
7 l2 v2 H0 c+ M/ A# @; ~ @__c32
8 ], E9 S7 {+ z. J& b3 H[busybox_unstripped]: 3600
" W$ q3 f, ]% Fbuffered_vfprintf
! [5 z$ s# X6 b6 v& }) K' _. R4 z[busybox_unstripped]: 3302
7 B" I) K8 i& V4 M; ?- R1 J__mpatan
. \5 v1 Q( N. \/ `[busybox_unstripped]: 2976! ~. K+ ^6 N. v7 c( G0 T" t
fallbackSort' p' g* q7 W! J8 J) O2 ?
[busybox_unstripped]: 2928
% p8 X% o a9 Y8 k$ L+ g$ {atan2Mp.constprop.0' Q1 |& E$ D4 n( `* D: ^
[busybox_unstripped]: 2304
0 s2 V& y, [; k3 l2 K__mpsqrt% i0 t2 b8 a, X
[busybox_unstripped]: 2304
- e3 |, h4 `+ a! Z6 J__slowpow) b2 d: J# b5 V8 i+ t# y
[busybox_unstripped]: 2304; i. f) D# Q: b/ I2 [6 Q0 n4 \
cal_main
, B& V% Y3 a- w o5 ^[busybox_unstripped]: 2288
( w7 ~1 l. L, H L8 ~$ P" Einternal_fnmatch
8 }" E/ Y6 @' J" j9 ][busybox_unstripped]: 21449 m- m: N7 c0 ?. s, n- p
doCommands
0 x' g) S( \: x! ^5 G3 W[busybox_unstripped]: 2112
/ e3 X5 l1 b+ J) B6 J: c__slowexp! @' A! W/ [6 R/ ?0 a( X% k/ O1 T
[busybox_unstripped]: 19841 S% k9 Z, w) Y8 X& Y
__mpexp
0 A5 W; V. F& L+ Q[busybox_unstripped]: 1984
E- r+ J/ k1 u9 Q0 snormalized5 [9 U; `- K" q. _. V
[busybox_unstripped]: 19681 s9 o( {; i( w; Q; g5 Q
get_next_block. {$ D2 Z! v- A2 \; E
[busybox_unstripped]: 1968$ N& E& T `1 z# c# k! s
identify_from_stdin
: `1 d5 V, K- r[busybox_unstripped]: 1792
" G& b7 _' z5 `; i' `9 n Z* S__ieee754_log
/ K7 K& s5 [$ U" n# y[busybox_unstripped]: 16485 A: z0 Y, H# |0 ]
huft_build! S% M3 z6 T2 Q1 W2 T6 e, h
[busybox_unstripped]: 14887 d9 L: V% n9 F, Y8 J( ^; G
iproute_modify! f+ @* g; F# F9 z; i
[busybox_unstripped]: 13760 ]9 g" F- f$ M4 d' ^
svc_getreq_common
) ?3 D9 A, R, I0 f1 k3 D! ^[busybox_unstripped]: 1328. r8 |3 @2 J. v5 w' @
__mpatan21 i. z* D) L6 w8 P1 d) Y$ c
[busybox_unstripped]: 1312+ ^# O' x6 Z" M) r9 M
inflate_block& ~% T! t" @% i& G6 ?; F
[busybox_unstripped]: 1296
" N! ?6 P0 `2 X7 C/ [9 @5 I& P_IO_vfprintf
* e& n0 T' A1 R6 w[busybox_unstripped]: 1296' _3 F, u9 _7 d5 K1 S/ {$ i
__libc_message* e& I7 c. T4 d0 M) e( k
[busybox_unstripped]: 1280" M, {& i- Z/ y3 P! _# l1 q
getlogin_r: ^* n }7 C& c8 H8 G" _. ~
[busybox_unstripped]: 1280' Q$ G. N7 N; f, u1 e9 ]
mainQSort3.constprop.23 ], P0 c6 e7 @5 ]5 t
[busybox_unstripped]: 1264' |& }" Z7 ~# \# U" g) N
__gettextparse0 p1 o% j6 ^) H' [& P8 y
[busybox_unstripped]: 12480 H4 ?: J+ a" j2 Y2 T L5 [5 l' d w
iproute_get- G; Y* u; L0 y4 K2 C1 V1 A
[busybox_unstripped]: 1184
# a8 K$ Q5 p" D/ I& p$ lrx_main
% |" }, v5 |. p) {2 @ i) ~& r( W[busybox_unstripped]: 1152" L2 H; M: {5 X$ E4 V8 o
ether_wake_main) X, d9 u; P" [
[busybox_unstripped]: 1152
. l6 ^) D9 N. d. E- ]procps_scan
5 P6 [+ J8 ]% G[busybox_unstripped]: 1152* f& q0 _- E# l& w
unwind_phase2_forced: E' V, O, L; ?$ P' r& C* I' G
[busybox_unstripped]: 1152. b1 h* z: j! K- w
build_trtable
7 p; J2 ?' B' k* O[busybox_unstripped]: 1126
/ w( h3 Z# V n' wwget_main( [- f8 T5 t: c8 |, I! G
[busybox_unstripped]: 1120' g3 M5 u9 d z% H6 z8 M0 c
iprule_modify
2 f/ F7 H! n- N. J[busybox_unstripped]: 1120
7 ~3 B; k" n$ hgetopt32/ ?7 |; F5 U( y$ P, `1 h
[busybox_unstripped]: 1104& i; M) d- S% v$ D9 t0 U
_svcauth_des
+ c" n' M9 G8 Z# v6 D/ i& v) y[busybox_unstripped]: 10881 X6 B* b W% C
two_way_long_needle
6 }) @' @7 O( E[busybox_unstripped]: 1056
, Y# E) }( L- p6 s# n& Sether_hostton
2 ~) [3 {2 n! K! {[busybox_unstripped]: 1056' S* \5 I: J* U; U1 N C# h
check_existence_through_netlink5 h% l' a; `. D2 b8 d8 h
[busybox_unstripped]: 1040$ k$ v- K [5 Q
two_way_long_needle
. a K% H) Y, B6 O7 R, M5 j! M0 X& e[busybox_unstripped]: 1040. K/ E: q. w5 ]
clnt_sperror" [% @) A% ^0 S
[busybox_unstripped]: 1040
/ o" n6 @( @# w! N, _3 t0 i t, H% bclnt_spcreateerror
+ s+ F- o/ z6 w# a[busybox_unstripped]: 1040
8 e% ^, Z* P3 F0 B: m_dl_signal_error
& O E' i/ F$ p. U[busybox_unstripped]: 1040
, o7 |+ _' U! l J! g, hinternal_fnwmatch
7 m2 [( |* a, Y[busybox_unstripped]: 10309 K5 P7 A, k6 z% s
bad_zone
- z1 U8 x8 ]0 A7 e1 m[busybox_unstripped]: 1024
; n0 t& f- K6 M7 Rget_dirsize
' x* M% b% M8 k8 i0 e( G[busybox_unstripped]: 1024
0 J t2 q! u7 Z2 W% A+ N6 g% ?map_block27 `. d+ U4 i& ?- @$ T/ _! D3 h
[busybox_unstripped]: 1024
2 y; f8 Z/ n5 y/ X$ k3 amap_block$ z" H1 j; ]1 P1 X! i
[busybox_unstripped]: 1024
2 v* e$ i" `! PaddLines
- u6 R9 v! k4 m. y& S[busybox_unstripped]: 1024
# v6 ~4 p$ p# M7 M+ ~getNum+ E$ y/ ~$ {, @- t/ o1 S
[busybox_unstripped]: 1024
2 _' g0 a) B( @! g8 N# B3 u% z! e( cperror_internal
! T( |* M5 Z& D[busybox_unstripped]: 1024$ A5 J5 [- s9 t
__getmntent_r2 F$ X6 G6 D5 `( W+ _5 y
[busybox_unstripped]: 1024
0 S G. _/ P3 e% g! _5 z2 M__mpsin. x1 M" i3 f0 n& ] q7 h5 ?+ X
[busybox_unstripped]: 996$ w1 T7 y, x6 ~( D! v
__mpcos
8 @; u" I- Q9 c[busybox_unstripped]: 996* L6 T! S7 _) i( k
__mpsin1
9 `" p- r" ]* y[busybox_unstripped]: 992
/ ?, j4 L/ ~* P# V: g h9 D- z$ G# s__mpcos14 X/ `2 a5 e* l6 W
[busybox_unstripped]: 992* ~( T( P0 U# I2 c) c. e3 w. H
__sin32
9 f# q0 }- P" d. B[busybox_unstripped]: 9883 t) U# v- h: l U
__cos329 T$ B* t( D* ^
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