diff options
| author | Joel Sherrill <joel@rtems.org> | 2016-03-10 13:29:22 -0600 |
|---|---|---|
| committer | Joel Sherrill <joel@rtems.org> | 2016-03-10 18:08:25 -0600 |
| commit | a006671a2559c9125d181be63adacd56b69b57e9 (patch) | |
| tree | 9e34ecdefbdf3bd7a14c0b52b77c2b191794bd6b | |
| parent | arm/smdk2410: Add per-section compilation and linking support (diff) | |
| download | rtems-a006671a2559c9125d181be63adacd56b69b57e9.tar.bz2 | |
arm/stm32f4: Add per-section compilation and linking support
updates #2577.
For the stm32f105rc BSP variant without this option,
sample executables sizes were as follows:
text data bss dec hex filename
61444 1724 63880 127048 1f048 ticker.exe
39397 1480 64104 104981 19a15 minimum.exe
131636 2360 63240 197236 30274 capture.exe
72818 1812 63784 138414 21cae nsecs.exe
123508 2100 63496 189104 2e2b0 paranoia.exe
125564 1748 63848 191160 2eab8 cdtest.exe
59488 1724 63880 125092 1e8a4 base_sp.exe
61168 1748 63848 126764 1ef2c unlimited.exe
69216 1692 63912 134820 20ea4 hello.exe
178492 6500 59400 244392 3baa8 loopback.exe
For the stm32f105rc BSP variant with this option,
sample executables sizes were as follows:
text data bss dec hex filename
56720 1700 63880 122300 1ddbc ticker.exe
23784 1400 64168 89352 15d08 minimum.exe
125096 2328 63272 190696 2e8e8 capture.exe
68410 1788 63816 134014 20b7e nsecs.exe
118480 2076 63528 184084 2cf14 paranoia.exe
119012 1724 63880 184616 2d128 cdtest.exe
54640 1700 63880 120220 1d59c base_sp.exe
55080 1708 63880 120668 1d75c unlimited.exe
62828 1636 63944 128408 1f598 hello.exe
164464 6388 59496 230348 383cc loopback.exe
For the stm32f4 BSP variant without this option,
sample executables sizes were as follows:
text data bss dec hex filename
61420 1724 129416 192560 2f030 ticker.exe
39373 1480 129640 170493 299fd minimum.exe
547160 2004 129160 678324 a59b4 cxx_iostream.exe
390329 5800 125352 521481 7f509 fileio.exe
297452 12616 118824 428892 68b5c pppd.exe
131612 2360 128776 262748 4025c capture.exe
72794 1812 129320 203926 31c96 nsecs.exe
123484 2100 129032 254616 3e298 paranoia.exe
125540 1748 129384 256672 3eaa0 cdtest.exe
59464 1724 129416 190604 2e88c base_sp.exe
61144 1748 129384 192276 2ef14 unlimited.exe
69192 1692 129448 200332 30e8c hello.exe
178468 6500 124936 309904 4ba90 loopback.exe
For the stm32f4 BSP variant with this option,
sample executables sizes were as follows:
text data bss dec hex filename
56640 1700 129416 187756 2dd6c ticker.exe
23704 1400 129704 154808 25cb8 minimum.exe
333792 1956 129192 464940 7182c cxx_iostream.exe
378469 5776 125384 509629 7c6bd fileio.exe
274684 12452 118952 406088 63248 pppd.exe
125016 2328 128808 256152 3e898 capture.exe
68330 1788 129352 199470 30b2e nsecs.exe
118400 2076 129064 249540 3cec4 paranoia.exe
118932 1724 129416 250072 3d0d8 cdtest.exe
54560 1700 129416 185676 2d54c base_sp.exe
55000 1708 129416 186124 2d70c unlimited.exe
62748 1636 129480 193864 2f548 hello.exe
164384 6388 125032 295804 4837c loopback.exe
| -rw-r--r-- | c/src/lib/libbsp/arm/stm32f4/make/custom/stm32f4.cfg | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/c/src/lib/libbsp/arm/stm32f4/make/custom/stm32f4.cfg b/c/src/lib/libbsp/arm/stm32f4/make/custom/stm32f4.cfg index 1256a52ee5..edca4bfa32 100644 --- a/c/src/lib/libbsp/arm/stm32f4/make/custom/stm32f4.cfg +++ b/c/src/lib/libbsp/arm/stm32f4/make/custom/stm32f4.cfg @@ -5,3 +5,6 @@ RTEMS_CPU = arm CPU_CFLAGS = -march=armv7-m -mthumb CFLAGS_OPTIMIZE_V = -O2 -g +CFLAGS_OPTIMIZE_V += -ffunction-sections -fdata-sections + +LDFLAGS = -Wl,--gc-sections |