From f9777af5fcb6d290285e5d3588bf71c937d71dda Mon Sep 17 00:00:00 2001
From: Cem Keylan <cem@ckyln.com>
Date: Sat, 30 May 2020 12:33:17 +0300
Subject: gcc: architecture dependent build
---
core/gcc/build | 23 ++++++++++++++++++-----
core/gcc/checksums | 1 +
core/gcc/patches/musl-libssp.patch | 20 ++++++++++++++++++++
core/gcc/sources | 1 +
4 files changed, 40 insertions(+), 5 deletions(-)
create mode 100644 core/gcc/patches/musl-libssp.patch
(limited to 'core/gcc')
diff --git a/core/gcc/build b/core/gcc/build
index 34c650a7..47bfc7c7 100755
--- a/core/gcc/build
+++ b/core/gcc/build
@@ -1,5 +1,7 @@
#!/bin/sh -e
+sys_arch=${3:-$(uname -m)}
+
sed_i() {
for file; do :; done
sed "$@" > _
@@ -10,9 +12,20 @@ sed_i() {
cp gcc/gmp/configfsf.guess gcc/gmp/config.guess
cp gcc/gmp/configfsf.sub gcc/gmp/config.sub
-# Use lib not lib64 by default.
-sed_i '/m64=/s/lib64/lib/' gcc/gcc/config/i386/t-linux64
-sed_i 's/lib64/lib/' gcc/gcc/config/i386/linux64.h
+if [ "${sys_arch#1*86}" ]; then
+ # Do not create lib64 directories
+ sed_i '/m64=/s/lib64/lib/' gcc/gcc/config/i386/t-linux64
+ sed_i 's/lib64/lib/' gcc/gcc/config/i386/linux64.h
+else
+ # Apply libssp patch for i686.
+ (cd gcc; patch -Np1 < ../musl-libssp.patch)
+fi
+
+case "$sys_arch" in
+ i*86) archopts="--build=i686-pc-linux-musl \
+ --disable-libssp" ;;
+ x86_64) archopts="--build=x86_64-pc-linux-musl"
+esac
# Build must happen outside of gcc source.
mkdir -p gcc-build
@@ -43,7 +56,7 @@ export libat_cv_have_ifunc=no
--enable-threads \
--enable-tls \
--enable-languages=c,c++ \
- --build=x86_64-pc-linux-musl \
+ $archopts \
--disable-bootstrap
make
@@ -64,7 +77,7 @@ install -Dm755 ../c99 "$1/usr/bin/c99"
{
mkdir -p "$1/usr/lib/bfd-plugins"
- ln -s /usr/libexec/gcc/x86_64-pc-linux-musl/9.2.0/liblto_plugin.so \
+ ln -s "/usr/libexec/gcc/$sys_arch-pc-linux-musl/9.2.0/liblto_plugin.so" \
"$1/usr/lib/bfd-plugins/liblto_plugin.so"
}
diff --git a/core/gcc/checksums b/core/gcc/checksums
index 31e5fbd3..ebe22b10 100644
--- a/core/gcc/checksums
+++ b/core/gcc/checksums
@@ -3,3 +3,4 @@ b6898a23844b656f1b68691c5c012036c2e694ac4b53a8918d4712ad876e7ea2 gcc-10.1.0.tar
1d3be708604eae0e42d578ba93b390c2a145f17743a744d8f3f8c2ad5855a38a mpfr-4.0.2.tar.xz
6985c538143c1208dcb1ac42cedad6ff52e267b47e5f970183a3e75125b43c2e mpc-1.1.0.tar.gz
765614b3396d70bca3fa0ae4a813632486c6dca320e2bd13c8c39dca52be4a4c c99
+4ece19529edb8e681e1778e977e2ba1d47984ccfcb82505e8b898bb29d659625 musl-libssp.patch
diff --git a/core/gcc/patches/musl-libssp.patch b/core/gcc/patches/musl-libssp.patch
new file mode 100644
index 00000000..fe5c6143
--- /dev/null
+++ b/core/gcc/patches/musl-libssp.patch
@@ -0,0 +1,20 @@
+Author: Timo Teräs <timo.teras@iki.fi>
+
+Alpine musl package provides libssp_nonshared.a. We link to it unconditionally,
+as otherwise we get link failures if some objects are -fstack-protector built
+and final link happens with -fno-stack-protector. This seems to be the common
+case when bootstrapping gcc, the piepatches do not seem to fully fix the
+crosstoolchain and bootstrap sequence wrt. stack-protector flag usage.
+
+--- gcc-6.1.0/gcc/gcc.c.orig
++++ gcc-6.1.0/gcc/gcc.c
+@@ -870,8 +870,7 @@
+
+ #ifndef LINK_SSP_SPEC
+ #ifdef TARGET_LIBC_PROVIDES_SSP
+-#define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all" \
+- "|fstack-protector-strong|fstack-protector-explicit:}"
++#define LINK_SSP_SPEC "-lssp_nonshared"
+ #else
+ #define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all" \
+ "|fstack-protector-strong|fstack-protector-explicit" \
diff --git a/core/gcc/sources b/core/gcc/sources
index 6eb83031..8a68dca5 100644
--- a/core/gcc/sources
+++ b/core/gcc/sources
@@ -3,3 +3,4 @@ https://gmplib.org/download/gmp/gmp-6.2.0.tar.xz gcc/gmp
https://ftp.gnu.org/gnu/mpfr/mpfr-4.0.2.tar.xz gcc/mpfr
https://ftp.gnu.org/gnu/mpc/mpc-1.1.0.tar.gz gcc/mpc
files/c99
+patches/musl-libssp.patch
--
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