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3.17.29 IA-64 Options

These are the `-m' options defined for the Intel IA-64 architecture.

-mbig-endian
Generate code for a big endian target. This is the default for HPUX.

-mlittle-endian
Generate code for a little endian target. This is the default for AIX5 and Linux.

-mgnu-as
-mno-gnu-as
Generate (or don't) code for the GNU assembler. This is the default.

-mgnu-ld
-mno-gnu-ld
Generate (or don't) code for the GNU linker. This is the default.

-mno-pic
Generate code that does not use a global pointer register. The result is not position independent code, and violates the IA-64 ABI.

-mvolatile-asm-stop
-mno-volatile-asm-stop
Generate (or don't) a stop bit immediately before and after volatile asm statements.

-mb-step
Generate code that works around Itanium B step errata.

-mregister-names
-mno-register-names
Generate (or don't) `in', `loc', and `out' register names for the stacked registers. This may make assembler output more readable.

-mno-sdata
-msdata
Disable (or enable) optimizations that use the small data section. This may be useful for working around optimizer bugs.

-mconstant-gp
Generate code that uses a single constant global pointer value. This is useful when compiling kernel code.

-mauto-pic
Generate code that is self-relocatable. This implies `-mconstant-gp'. This is useful when compiling firmware code.

-minline-divide-min-latency
Generate code for inline divides using the minimum latency algorithm.

-minline-divide-max-throughput
Generate code for inline divides using the maximum throughput algorithm.

-mno-dwarf2-asm
-mdwarf2-asm
Don't (or do) generate assembler code for the DWARF2 line number debugging info. This may be useful when not using the GNU assembler.

-mfixed-range=register-range
Generate code treating the given register range as fixed registers. A fixed register is one that the register allocator can not use. This is useful when compiling kernel code. A register range is specified as two registers separated by a dash. Multiple register ranges can be specified separated by a comma.


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This document was generated by Vincent Chung on June, 26 2001 using texi2html