#2407: Enable function and data sections
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Reporter: sebastian.huber | Owner:
Type: enhancement | Status: new
Priority: normal | Milestone: 4.12
Component: build | Version: 4.10
Severity: normal | Keywords:
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In order to reduce the size of executables it is beneficial to put all
global functions and data into separate sections. This enables the linker
to perform a garbage collection which removes all items not directly
referenced. The following steps are necessary:
1. Modify the build system to use the following compiler and linker flags:
CFLAGS += -ffunction-sections -fdata-sections
LDFLAGS += -Wl,--gc-sections
2. Review all linker command files and ensure that linker sets and global
constructor sections are not affected by the garbage collection (e.g. use
the KEEP() directive of GNU ld).
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Ticket URL: <http://devel.rtems.org/ticket/2407>
RTEMS Project <http://www.rtems.org/>
RTEMS Project
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