* [PATCH] RISC-V: Use newlib nano specific libm.
@ 2020-01-29 22:46 Jim Wilson
2020-01-31 11:42 ` Corinna Vinschen
0 siblings, 1 reply; 2+ messages in thread
From: Jim Wilson @ 2020-01-29 22:46 UTC (permalink / raw)
To: newlib; +Cc: Jim Wilson
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>
---
libgloss/riscv/nano.specs | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libgloss/riscv/nano.specs b/libgloss/riscv/nano.specs
index 89fd23176..e12e31384 100644
--- a/libgloss/riscv/nano.specs
+++ b/libgloss/riscv/nano.specs
@@ -15,7 +15,7 @@
%(nano_link_gcc_c_sequence) --start-group %G %(nano_libc) %(nano_libgloss) --end-group
*link:
-%(nano_link) %:replace-outfile(-lc -lc_nano) %:replace-outfile(-lg -lg_nano)
+%(nano_link) %:replace-outfile(-lc -lc_nano) %:replace-outfile(-lg -lg_nano) %:replace-outfile(-lm -lm_nano)
*lib:
%{!shared:%{g*:-lg_nano} %{!p:%{!pg:-lc_nano}}%{p:-lc_p}%{pg:-lc_p}}
--
2.17.1
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [PATCH] RISC-V: Use newlib nano specific libm.
2020-01-29 22:46 [PATCH] RISC-V: Use newlib nano specific libm Jim Wilson
@ 2020-01-31 11:42 ` Corinna Vinschen
0 siblings, 0 replies; 2+ messages in thread
From: Corinna Vinschen @ 2020-01-31 11:42 UTC (permalink / raw)
To: newlib
[-- Attachment #1: Type: text/plain, Size: 1289 bytes --]
On Jan 29 14:46, Jim Wilson wrote:
> 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>
> ---
> libgloss/riscv/nano.specs | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/libgloss/riscv/nano.specs b/libgloss/riscv/nano.specs
> index 89fd23176..e12e31384 100644
> --- a/libgloss/riscv/nano.specs
> +++ b/libgloss/riscv/nano.specs
> @@ -15,7 +15,7 @@
> %(nano_link_gcc_c_sequence) --start-group %G %(nano_libc) %(nano_libgloss) --end-group
>
> *link:
> -%(nano_link) %:replace-outfile(-lc -lc_nano) %:replace-outfile(-lg -lg_nano)
> +%(nano_link) %:replace-outfile(-lc -lc_nano) %:replace-outfile(-lg -lg_nano) %:replace-outfile(-lm -lm_nano)
>
> *lib:
> %{!shared:%{g*:-lg_nano} %{!p:%{!pg:-lc_nano}}%{p:-lc_p}%{pg:-lc_p}}
> --
> 2.17.1
Pushed.
Thanks,
Corinna
--
Corinna Vinschen
Cygwin Maintainer
Red Hat
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2020-01-29 22:46 [PATCH] RISC-V: Use newlib nano specific libm Jim Wilson
2020-01-31 11:42 ` Corinna Vinschen
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