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Add ARMv7 support (Raspberry Pi 3,4)

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Hein-Pieter van Braam-Stewart
2021-02-04 10:13:28 +01:00
parent 219b8759be
commit 94e1db840d
4 changed files with 3655 additions and 7 deletions
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54
package/glibc/0002-arm-build.patch Normal file
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@@ -0,0 +1,54 @@
From 175cef4163dd60f95106cfd5f593b8a4e09d02c9 Mon Sep 17 00:00:00 2001
From: Joseph Myers <joseph@codesourcery.com>
Date: Tue, 20 May 2014 21:27:13 +0000
Subject: [PATCH] Fix ARM build with GCC trunk.
sysdeps/unix/sysv/linux/arm/unwind-resume.c and
ports/sysdeps/unix/sysv/linux/arm/nptl/unwind-forcedunwind.c have static
variables that are written in C code but only read from toplevel asms.
Current GCC trunk now optimizes away such apparently write-only static
variables, so causing a build failure. This patch marks those
variables with __attribute_used__ to avoid that optimization.
Tested that this fixes the build for ARM.
* ports/sysdeps/unix/sysv/linux/arm/nptl/unwind-forcedunwind.c
(libgcc_s_resume): Use __attribute_used__.
* sysdeps/unix/sysv/linux/arm/unwind-resume.c (libgcc_s_resume):
Likewise.
---
ports/sysdeps/unix/sysv/linux/arm/nptl/unwind-forcedunwind.c | 3 ++-
sysdeps/unix/sysv/linux/arm/unwind-resume.c | 3 ++-
3 files changed, 11 insertions(+), 2 deletions(-)
diff --git a/ports/sysdeps/unix/sysv/linux/arm/nptl/unwind-forcedunwind.c b/ports/sysdeps/unix/sysv/linux/arm/nptl/unwind-forcedunwind.c
index 6ccd9b43a1..660d1488e1 100644
--- a/ports/sysdeps/unix/sysv/linux/arm/nptl/unwind-forcedunwind.c
+++ b/ports/sysdeps/unix/sysv/linux/arm/nptl/unwind-forcedunwind.c
@@ -22,7 +22,8 @@
#include <pthreadP.h>
static void *libgcc_s_handle;
-static void (*libgcc_s_resume) (struct _Unwind_Exception *exc);
+static void (*libgcc_s_resume) (struct _Unwind_Exception *exc)
+ __attribute_used__;
static _Unwind_Reason_Code (*libgcc_s_personality)
(_Unwind_State, struct _Unwind_Exception *, struct _Unwind_Context *);
static _Unwind_Reason_Code (*libgcc_s_forcedunwind)
diff --git a/ports/sysdeps/unix/sysv/linux/arm/nptl/unwind-resume.c b/ports/sysdeps/unix/sysv/linux/arm/nptl/unwind-resume.c
index bff3e2b4f1..1f1eb71741 100644
--- a/ports/sysdeps/unix/sysv/linux/arm/nptl/unwind-resume.c
+++ b/ports/sysdeps/unix/sysv/linux/arm/nptl/unwind-resume.c
@@ -20,7 +20,8 @@
#include <stdio.h>
#include <unwind.h>
-static void (*libgcc_s_resume) (struct _Unwind_Exception *exc);
+static void (*libgcc_s_resume) (struct _Unwind_Exception *exc)
+ __attribute_used__;
static _Unwind_Reason_Code (*libgcc_s_personality)
(_Unwind_State, struct _Unwind_Exception *, struct _Unwind_Context *);
--
2.27.0