d241d4f77a
long double functions, that are identical to double functions, usually define themselves as weak references to their double counterpart. However, the piece of assembler written for that produces .equ <name>l, <name> but on SuperH C-exported symbols have leading underscores. This commit adds an SH3 exception to use instead .equ _<name>l, _<name> which fixes a number of long double functions. |
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| .github | ||
| aarch64 | ||
| amd64 | ||
| arm | ||
| bsdsrc | ||
| docs | ||
| i387 | ||
| include | ||
| ld80 | ||
| ld128 | ||
| mips | ||
| powerpc | ||
| s390 | ||
| sh3eb | ||
| src | ||
| test | ||
| wasm32 | ||
| .gitignore | ||
| .mailmap | ||
| .travis.yml | ||
| appveyor.yml | ||
| giteapc.make | ||
| LICENSE.md | ||
| Make.inc | ||
| Makefile | ||
| openlibm.pc.in | ||
| README-OpenLibm.md | ||
| README.md | ||
Soft-FP sh3eb port of OpenLibm
This is a fork of OpenLibm with support for the sh3eb architecture, intended for add-in programming on fx-9860G and fx-CG 50.
Installing with GiteaPC
This library can be installed automatically with GiteaPC.
% giteapc install Lephenixnoir/OpenLibm
Building manually
You will need a GCC toolchain built with --target=sh3eb-elf, such as the
sh-elf-gcc commonly used on Planète Casio.
First locate the compiler's install directory. This is normally the
lib/gcc/sh3eb-elf/<version>/ folder inside the install path of the compiler.
% PREFIX=$(sh-elf-gcc --print-search-dirs | grep install | sed 's/install: //')
You can then build and install the static libopenlibm.a archive and the headers.
% make USEGCC=1 TOOLPREFIX=sh-elf- libdir="$PREFIX" includedir="$PREFIX/include" install-static install-headers
Using in a Makefile-based add-in
Link with -lopenlibm as you would do with -lm. Since OpenLibm headers
reference themselves by file name (#include <openlibm_complex.h>) even though
they are installed in a subfolder, you need a -I flag:
CFLAGS += -I $(shell sh-elf-gcc -print-file-name=include/openlibm)
LDFLAGS += -lopenlibm
Using in a CMake-based add-in
When using CMake with the fxSDK, add the include folder and library like this.
target_include_directories(<TARGET> PRIVATE "${FXSDK_COMPILER_INSTALL}/include/openlibm")
target_link_libraries(<TARGET> -lopenlibm)
README and Licensing
See the original README file in README-OpenLibm.md. OpenLibm contains code covered by various licenses, see LICENSE.md.