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Library Environment
2.6.2
What Multilibs are Available for MPLAB C32 Language Tools?
The target libraries that are distributed with the MPLAB C32 C Compiler are built for the
following options:
? Size versus speed ( -Os vs. -O3 )
? 16-bit versus 32-bit ( -mips16 vs. -mno-mips1 6)
? Software floating-point versus no floating-point support ( -msoft-float vs.
-mno-float )
By default the MPLAB C32 language tools compile for -O0 , -mno-mips16 , and
-msoft-float . Therefore, the options that we are concerned about are -Os or -O3 ,
-mips16 , and -mno-float . Libraries built with the following command line options
are made available:
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
Default command line options
-Os
-O3
-mips16
-mno-float
-mips16 -mno-float
-Os -mips16
-Os -mno-float
-Os -mips16 -mno-float
-O3 -mips16
-O3 -mno-float
-O3 -mips16 -mno-float
2.6.3
Where are the Multilibs Directories?
By default, the MPLAB C32 language tools use the directory
<install-directory>/lib/gcc/ to store the specific libraries and the directory
<install-directory>/<pic32mx>/lib to store the target-specific libraries. Both
of these directory structures contain subdirectories for each of the multilib combinations
specified above. These subdirectories, respectively, are as follows:
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
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.
./size
./speed
./mips16
./no-float
./mips16/no-float
./size/mips16
./size/no-float
./size/mips16/no-float
./speed/mips16
./speed/no-float
./speed/mips16/no-float
? 2007 Microchip Technology Inc.
DS51686A-page 45
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相关PDF资料
SW300003-EVAL
LIBRARY SOFT MODEM-EVAL ONLY
SW300010-EVAL
SPEECH RECOG LIBRARY-EVAL ONLY
SW300040-EVAL
LIBRARY NOISE SUPPR-EVAL ONLY
SW300060-EVAL
LIBRARY ACOUSTIC ECHO-EVAL ONLY
SW300070-EVAL
SOFTWARE LIBR ENC/DEC EVAL ONLY
SW500012
HI-TECH C PRO FOR PIC32
SY87701LHI-EVAL
BOARD EVAL SY87701 EXPERIMENT
SY87729LHI-EVAL
BOARD EVAL N SY87729 EXPERIMENT
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