RealView Compilation Tools - ARM Information Center

Compiler Command-line Options
• a specific ZI data section, use a combination of __attribute__((section)) and
__attribute__((zero_init)).
Default
If you do not specify a --bss_threshold option, the compiler assumes
--bss_threshold=8.
If you specify an ARM Linux configuration file on the command line and you use
--translate_gcc or --translate_g++, the compiler assumes --bss_threshold=0.
Example
int glob1; /* ZI (.bss) in RVCT 2.0.1 and earlier */
/* RW (.data) in RVCT 2.1 and later */
Compiling this code with --bss_threshold=0 places glob1 in a ZI data section.
See also
• #pragma arm section [section_sort_list] on page 4-59
• --arm_linux_config_file=path on page 2-10
• --arm_linux_configure on page 2-12
• __attribute__((section("name"))) on page 4-52
• __attribute__((zero_init)) on page 4-57.
2.1.18 -c
This option instructs the compiler to perform the compilation step, but not the link step.
Note
This option is different from the uppercase -C option.
Usage
The use of the -c option is recommended in projects with more than one source file.
See also
• --asm on page 2-16
• --list on page 2-82
• -o filename on page 2-95
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