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gmp_4.2.1: prevent calls to mpn_add_nc() if HAVE_NATIVE_mpn_sub_nc is false

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When building for aarch64 (ie relying only on generic C code rather
than asm) libgmp.so contains undefined references to __gmpn_add_nc
and __gmpn_sub_nc which causes attempts to link with -lgmp to fail:

 | .../usr/lib/libgmp.so: undefined reference to `__gmpn_sub_nc'
 | .../usr/lib/libgmp.so: undefined reference to `__gmpn_add_nc'

Solution based on a historical patch posted to the gmp mailing list:

  https://gmplib.org/list-archives/gmp-discuss/2006-May/002344.html

Cherry-pick from meta-gplv2:

  http://git.yoctoproject.org/cgit/cgit.cgi/meta-gplv2/commit/?id=d8668018d5d795be2297f878fd871a27edf532bf

(From OE-Core rev: 93af40ae113e9b505a9739ca2688360f12015fb7)

Signed-off-by: Andre McCurdy <armccurdy@gmail.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Armin Kuster <akuster808@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Andre McCurdy
2017-11-01 17:23:36 -07:00
committed by Richard Purdie
parent 61d7b4aa03
commit 230407cab0
2 changed files with 79 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files
meta/recipes-support/gmp/gmp-4.2.1/prevent-calls-to-mpn_add_nc-if-HAVE_NATIVE_mpn_sub_n.patch
+78
View File
@@ -0,0 +1,78 @@
From d4f3542fabe0797cf2d60afd957585862bd9a29b Mon Sep 17 00:00:00 2001
From: Andre McCurdy <armccurdy@gmail.com>
Date: Fri, 25 Aug 2017 16:16:06 -0700
Subject: [PATCH] prevent calls to mpn_add_nc() if HAVE_NATIVE_mpn_sub_nc is false
When building for aarch64 (ie relying only on generic C code rather
than asm) libgmp.so contains undefined references to __gmpn_add_nc
and __gmpn_sub_nc which causes attempts to link with -lgmp to fail:
| .../usr/lib/libgmp.so: undefined reference to `__gmpn_sub_nc'
| .../usr/lib/libgmp.so: undefined reference to `__gmpn_add_nc'
Solution based on a historical patch posted to the gmp mailing list:
https://gmplib.org/list-archives/gmp-discuss/2006-May/002344.html
Upstream-Status: Inappropriate [Fixed in current versions]
Signed-off-by: Andre McCurdy <armccurdy@gmail.com>
---
mpn/generic/addsub_n.c | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
diff --git a/mpn/generic/addsub_n.c b/mpn/generic/addsub_n.c
index 27b2c08..0ff7ca0 100644
--- a/mpn/generic/addsub_n.c
+++ b/mpn/generic/addsub_n.c
@@ -58,13 +58,13 @@ mpn_addsub_n (mp_ptr r1p, mp_ptr r2p, mp_srcptr s1p, mp_srcptr s2p, mp_size_t n)
for (off = 0; off < n; off += PART_SIZE)
{
this_n = MIN (n - off, PART_SIZE);
-#if HAVE_NATIVE_mpn_add_nc || !HAVE_NATIVE_mpn_add_n
+#if HAVE_NATIVE_mpn_add_nc
acyo = mpn_add_nc (r1p + off, s1p + off, s2p + off, this_n, acyo);
#else
acyn = mpn_add_n (r1p + off, s1p + off, s2p + off, this_n);
acyo = acyn + mpn_add_1 (r1p + off, r1p + off, this_n, acyo);
#endif
-#if HAVE_NATIVE_mpn_sub_nc || !HAVE_NATIVE_mpn_sub_n
+#if HAVE_NATIVE_mpn_sub_nc
scyo = mpn_sub_nc (r2p + off, s1p + off, s2p + off, this_n, scyo);
#else
scyn = mpn_sub_n (r2p + off, s1p + off, s2p + off, this_n);
@@ -81,13 +81,13 @@ mpn_addsub_n (mp_ptr r1p, mp_ptr r2p, mp_srcptr s1p, mp_srcptr s2p, mp_size_t n)
for (off = 0; off < n; off += PART_SIZE)
{
this_n = MIN (n - off, PART_SIZE);
-#if HAVE_NATIVE_mpn_sub_nc || !HAVE_NATIVE_mpn_sub_n
+#if HAVE_NATIVE_mpn_sub_nc
scyo = mpn_sub_nc (r2p + off, s1p + off, s2p + off, this_n, scyo);
#else
scyn = mpn_sub_n (r2p + off, s1p + off, s2p + off, this_n);
scyo = scyn + mpn_sub_1 (r2p + off, r2p + off, this_n, scyo);
#endif
-#if HAVE_NATIVE_mpn_add_nc || !HAVE_NATIVE_mpn_add_n
+#if HAVE_NATIVE_mpn_add_nc
acyo = mpn_add_nc (r1p + off, s1p + off, s2p + off, this_n, acyo);
#else
acyn = mpn_add_n (r1p + off, s1p + off, s2p + off, this_n);
@@ -105,13 +105,13 @@ mpn_addsub_n (mp_ptr r1p, mp_ptr r2p, mp_srcptr s1p, mp_srcptr s2p, mp_size_t n)
for (off = 0; off < n; off += PART_SIZE)
{
this_n = MIN (n - off, PART_SIZE);
-#if HAVE_NATIVE_mpn_add_nc || !HAVE_NATIVE_mpn_add_n
+#if HAVE_NATIVE_mpn_add_nc
acyo = mpn_add_nc (tp, s1p + off, s2p + off, this_n, acyo);
#else
acyn = mpn_add_n (tp, s1p + off, s2p + off, this_n);
acyo = acyn + mpn_add_1 (tp, tp, this_n, acyo);
#endif
-#if HAVE_NATIVE_mpn_sub_nc || !HAVE_NATIVE_mpn_sub_n
+#if HAVE_NATIVE_mpn_sub_nc
scyo = mpn_sub_nc (r2p + off, s1p + off, s2p + off, this_n, scyo);
#else
scyn = mpn_sub_n (r2p + off, s1p + off, s2p + off, this_n);
--
1.9.1
meta/recipes-support/gmp/gmp_4.2.1.bb
+1
View File
@@ -11,6 +11,7 @@ SRC_URI = "https://gmplib.org/download/${BPN}/archive/${BP}.tar.bz2 \
file://Use-__gnu_inline__-attribute.patch \
file://gmp_fix_for_automake-1.12.patch \
file://avoid-h-asm-constraint-for-MIPS.patch \
file://prevent-calls-to-mpn_add_nc-if-HAVE_NATIVE_mpn_sub_n.patch \
"
SRC_URI[md5sum] = "091c56e0e1cca6b09b17b69d47ef18e3"