Appendix K Third Party Tool Flags
The following tables provide a summary of these "Best Known" options.
Note: A reserved keyword,
MDEPKG_NDEBUG, can be used for code size reduction purposes.Microsoft | Intel | GCC | Description |
/nologo | /nologo | | Do not display compiler version information |
/c | /c | -c | Compile C files to object (.obj) files only, do not link |
/WX | /WX | -Werror | Force warnings to be reported as errors. |
/GS- | /GS- | | Disable security checks |
| | -Wno-missing-braces | Warn if an aggregate or union initializer is not fully bracketed. In the following example, the initializer for 'a' is not fully bracketed, but that for 'b' is fully bracketed. |
| | -Wno-array-bounds | Disables warnings if subscripts to arrays are out of bounds. |
/W4 | /W4 | -Wall | Warning level 4 - print errors, warnings and remarks (or enable most warning messages) |
/Gs32768 | | | Control stack (32768 bytes) checking calls |
/Gy | /Gy | | Separate functions for linker. |
/O1ib2 | /O1 | | Optimize for minimum space, enable intrinsic functions, enable in-line expansion. |
| /Oi | | Enable Intrinsic functions |
| /Ob2 | -default-inline | In-line any function, at the compiler's discretion (same as /Qip) |
| | -O | Optimize output file |
/GL | | | Enable link-time code generation |
/EHs-c- | | | Combine /EHs- and /EHc- |
| /EHs- | | Disable C++ EH (no SHE exceptions) |
| /EHc- | | Disable extern C defaults to no throw |
/GF | GF | | Enable read-only string pooling |
/GR- | | | Disable C++ RTTI |
EDK II Specific Flags | | | |
/D UNICODE | /D UNICODE | -DUNICODE | define macro UNICODE |
/FIAutoGen.h | /FIAutoGen.h | --include AutoGen.h | Always include AutoGen.h file |
Debug Specific Flags | | | |
/Zi | /Zi | -g | Enable debugging information |
/Gm | /Gm | | Enable minimum rebuild |
| | -fshort-wchar | Force the underlying type for "wchar_t" to be "unsigned short" |
| | -fno-stack-protector | |
| | -fno-strict-aliasing | |
| | -ffunction-sections | |
| | -fdata-sections | |
IPF Specific Flags | | | |
/Ox | | | Maximum Optimization ( /Ogityb2 /Gs) |
/X | | | ignore standard places |
/QIPF_fr32 | | | Do not use upper 96 Floating Point Registers |
/Zx | | | Generates debug-able optimized code. Only available in the IPF cross compiler or IPF native compiler. |
Microsoft | GCC | Description |
/nologo | | Do not display assembler version information |
/c | -c | Generate object (.obj) files, do not link |
/WX | | Treat warnings as errors |
/W3 | | Warning level 3 |
/Cx | | Preserve case in publics and externs |
/coff | | Generate COFF format object files |
/Zd | | Add line number debug info |
/Zi | | Add symbolic debug info (DEBUG target) |
| -x assembler | Input files are in assembly language |
| -imacros AutoGen.h | Accept definition of macros in AutoGen.h |
Microsoft | Intel | GCC | Description |
/nologo | /nologo | | Do not display compiler version information |
/E | /E | -E | Preprocess only; do not compile, assemble or link |
/TC | /TC | -x assembler-with-cpp | Compile as .c files |
/FIAutoGen.h | /FIAutoGen.h | --include AutoGen.h | Always include AutoGen.h file |
Microsoft | Intel | GCC | Description |
/nologo | /nologo | | Do not display compiler version information |
/E | /E | -E | Preprocess only; do not compile, assemble or link |
/TC | /TC | -x c | Compile as .c files |
/D VFRCOMPILE | /D VFRCOMPILE | -DVFRCOMPILE | Used only for Preprocessing VFR files |
| | -P | Used only for Preprocessing VFR files - do not generate #line directives |
/FI$(MOD_NAME)StrDefs.h | | | Force include of the module's StrDefs.h file. |
Microsoft | Intel | GCC | Description |
/nologo | /nologo | | Do not display compiler version information |
/c | /c | -c | Compile C files to object (.obj) files only, do not link |
/W4 | /W4 | -Wall | Warning level 4 - print errors, warnings and remarks (or enable most warning messages) |
/WX | /WX | -Werror | Force warnings to be reported as errors. |
/Gy | /Gy | | Separate functions for linker. |
/GS- | /GS- | | Disable security checks |
/O1 | /O1 | | Optimize for Maximum Speed |
/Oi | /Oi | | Enable Intrinsic functions |
/Ob2 | /Ob2 | -default-inline | In-line any function, at the compiler's discretion (same as /Qip) |
/GL | | | Enable link-time code generation |
/EHs- | /EHs- | | Disable C++ EH (no SHE exceptions) |
/EHc- | /EHc- | | Disable extern C defaults to no throw |
/GF | /GF | | Enable read-only string pooling |
/Gs8192 | /Gs8192 | | Control stack (8192 bytes) checking calls |
/TC | /TC | | Compile as .c files |
/Yc | | | Create the .pch file |
/Gm | | | Enable minimal rebuilds |
/FpAutoGen.h.gch | | | |
/X | /X | | Ignore standard places |
/Zi | /Zi | | Produce debugging information |
Microsoft | GCC | Description |
/nologo | | Do not display compiler version information |
/LTCG | | Use link-time code generation |
Microsoft | GCC | Description |
/NOLOGO | | Do not display compiler version information |
/NODEFAULTLIB | -nostdlib | Disable using default libraries |
/IGNORE:4086 | N/A | Use /Gz option instead |
/OPT:ICF=10 | | Perform identical COMDAT folding (10 iterations) to remove duplicates. |
/MAP | -Map filename.map | Create a map file. |
/ALIGN:32 | --section-alignment 0x20 | Use 32-byte alignment instead of the default 4K |
| --file-alignment 0x20 | |
/MACHINE:$$ | N/A | Where $$ is one of: I386, AMD64 or IA64 |
/DLL | --dll | The output is a DLL |
/LTCG | | Use link-time code generation |
/ENTRY:$(ENTRYPOINT) | --entry _$(ENTRYPOINT) | The function that specifies a starting address. |
/SUBSYSTEM:CONSOLE | --subsystem console | Do not use the EFI_* subsystem interface, as this is EFI 1.0 compliant, not UEFI compliant. |
/SAFESEH:NO | | Do not produce an image with a table of safe exception handles |
/BASE:0 | --image-base 0x0 | Base address is always 0, and will be adjusted later by the build tools when creating images. |
/DRIVER | | Specify Kernel mode |
/DEBUG | | Create debugging information |
| -O2 | Optimize |
| --gc-sections | Enable garbage collection of unused input sections |
| --export-all-symbols | All global symbols in the objects used to build a DLL will be exported by the DLL. |
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