From: Jim Wilson <jimw@sifive.com>
To: newlib@sourceware.org
Cc: Jim Wilson <jimw@sifive.com>
Subject: [PATCH] RISC-V: Use newlib nano specific libm.
Date: Wed, 29 Jan 2020 22:46:00 -0000 [thread overview]
Message-ID: <20200129224617.14207-1-jimw@sifive.com> (raw)
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
next reply other threads:[~2020-01-29 22:46 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-29 22:46 Jim Wilson [this message]
2020-01-31 11:42 ` Corinna Vinschen
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