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newlib/libgloss/riscv/nano.specs

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RISC-V: Add gdb sim and newlib nano support. Fix a few misc minor bugs.
2017-12-26 21:30:27 +01:00
%rename link nano_link
%rename link_gcc_c_sequence nano_link_gcc_c_sequence
%rename cpp nano_cpp
*cpp:
-isystem =/include/newlib-nano %(nano_cpp)
*nano_libc:
-lc_nano
*nano_libgloss:
%{specs=nosys.specs:-lnosys} %{!specs=nosys.specs:-lgloss_nano}
*link_gcc_c_sequence:
%(nano_link_gcc_c_sequence) --start-group %G %(nano_libc) %(nano_libgloss) --end-group
*link:
RISC-V: Use newlib nano specific libm. The libm gamma functions use the _gamma_signgam field of the reentrant structure, which changes offset with the --enable-newlib-reent-small configure option, which means we need to use a newlib nano specific version of libm in addition to libc in the nano.specs file. Reported by Keith Packard. There is a riscv-gnu-toolchain patch that goes along with this to create the new libm_nano.a file. Signed-off-by: Jim Wilson <jimw@sifive.com>
2020-01-29 23:46:17 +01:00
%(nano_link) %:replace-outfile(-lc -lc_nano) %:replace-outfile(-lg -lg_nano) %:replace-outfile(-lm -lm_nano)
RISC-V: Add gdb sim and newlib nano support. Fix a few misc minor bugs.
2017-12-26 21:30:27 +01:00
*lib:
%{!shared:%{g*:-lg_nano} %{!p:%{!pg:-lc_nano}}%{p:-lc_p}%{pg:-lc_p}}
# ??? Maybe put --gc-sections option in here?