[rtems commit] powerpc/t32mppc: Add per-section compilation and linking support.
Joel Sherrill
joel at rtems.org
Sat Jan 23 19:49:13 UTC 2016
Module: rtems
Branch: master
Commit: 99a03876fa299296f0d96514462a76c9a7774a4d
Changeset: http://git.rtems.org/rtems/commit/?id=99a03876fa299296f0d96514462a76c9a7774a4d
Author: Ralph Holmes <ralph at ybden.com>
Date: Sat Jan 23 18:33:18 2016 +0000
powerpc/t32mppc: Add per-section compilation and linking support.
The size of the sample executables without this option were:
text data bss dec hex filename
131246 2224 134084236 134217706 7ffffea base_sp.exe
145442 2108 134070140 134217690 7ffffda hello.exe
87857 1816 134128016 134217689 7ffffd9 minimum.exe
658358 6206 133553148 134217712 7fffff0 fileio.exe
155574 2320 134059800 134217694 7ffffde nsecs.exe
220670 2600 133994432 134217702 7ffffe6 paranoia.exe
135534 2232 134079948 134217714 7fffff2 ticker.exe
133626 2240 134081828 134217694 7ffffde unlimited.exe
943592 148090 133126008 134217690 7ffffda cxx_iostream.exe
250066 9528 133958096 134217690 7ffffda cdtest.exe
246978 2728 133968004 134217710 7ffffee capture.exe
The size of the sample executables with this option enabled were:
text data bss dec hex filename
116650 2216 134098828 134217694 7ffffde base_sp.exe
128558 2068 134087092 134217718 7fffff6 hello.exe
47222 1560 134168916 134217698 7ffffe2 minimum.exe
632422 6194 133579072 134217688 7ffffd8 fileio.exe
141782 2312 134073624 134217718 7fffff6 nsecs.exe
206018 2592 134009108 134217718 7fffff6 paranoia.exe
121258 2224 134094220 134217702 7ffffe6 ticker.exe
117378 2216 134098108 134217702 7ffffe6 unlimited.exe
602026 51306 133564344 134217676 7ffffcc cxx_iostream.exe
236658 8188 133972848 134217694 7ffffde cdtest.exe
230070 2688 133984932 134217690 7ffffda capture.exe
---
c/src/lib/libbsp/powerpc/t32mppc/make/custom/t32mppc.cfg | 3 +++
1 file changed, 3 insertions(+)
diff --git a/c/src/lib/libbsp/powerpc/t32mppc/make/custom/t32mppc.cfg b/c/src/lib/libbsp/powerpc/t32mppc/make/custom/t32mppc.cfg
index dfb489a..1bbfe76 100644
--- a/c/src/lib/libbsp/powerpc/t32mppc/make/custom/t32mppc.cfg
+++ b/c/src/lib/libbsp/powerpc/t32mppc/make/custom/t32mppc.cfg
@@ -6,3 +6,6 @@ CPU_CFLAGS = -mcpu=8540 -meabi -msdata=sysv -fno-common -msoft-float -mno-spe \
-D__ppc_generic
CFLAGS_OPTIMIZE_V = -Og -g
+CFLAGS_OPTIMIZE_V += -ffunction-sections -fdata-sections
+
+LDFLAGS = -Wl,--gc-sections
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