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qemu: Provide float128 via hwcaps2 on ppc64le

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Fixes runtime problems with qemu-user
Fatal glibc error: CPU lacks float128 support (POWER 9 or later required)

(From OE-Core rev: 2a2ba9ec4ca1aeb4a1d5336bb18ab76253c87bc0)

Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Khem Raj
2021-06-14 12:19:18 -07:00
committed by Richard Purdie
parent 39dbe03bd3
commit e84de43c6a
2 changed files with 36 additions and 0 deletions
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1
meta/recipes-devtools/qemu/qemu.inc
View File

@@ -36,6 +36,7 @@ SRC_URI = "https://download.qemu.org/${BPN}-${PV}.tar.xz \
file://0005-vhost-user-gpu-fix-memory-leak-in-virgl_cmd_resource.patch \
file://0006-vhost-user-gpu-fix-memory-leak-in-virgl_resource_att.patch \
file://0007-vhost-user-gpu-fix-OOB-write-in-virgl_cmd_get_capset.patch \
file://0001-linux-user-Tag-vsx-with-ieee128-fpbits.patch \
"
UPSTREAM_CHECK_REGEX = "qemu-(?P<pver>\d+(\.\d+)+)\.tar"

35
meta/recipes-devtools/qemu/qemu/0001-linux-user-Tag-vsx-with-ieee128-fpbits.patch Normal file
View File

@@ -0,0 +1,35 @@
From c5844a4cdee37268c9b65a65e6968ee129bb742d Mon Sep 17 00:00:00 2001
From: Khem Raj <raj.khem@gmail.com>
Date: Mon, 14 Jun 2021 10:27:17 -0700
Subject: [PATCH] linux-user: Tag vsx with ieee128 fpbits
In OE we need this for ppc64le usermode to work since we generate 128bit
long doubles and glibc 2.34 is now checking for this in hwcaps at
runtime and failing to run the binary if machine does not support 128bit
IEEE fp
Fixes
Fatal glibc error: CPU lacks float128 support (POWER 9 or later required)
Upstream-Status: Pending
Signed-off-by: Khem Raj <raj.khem@gmail.com>
---
linux-user/elfload.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/linux-user/elfload.c b/linux-user/elfload.c
index 17ab06f612..e7dd18fd40 100644
--- a/linux-user/elfload.c
+++ b/linux-user/elfload.c
@@ -830,7 +830,7 @@ static uint32_t get_elf_hwcap2(void)
PPC2_ISA207S), QEMU_PPC_FEATURE2_ARCH_2_07 |
QEMU_PPC_FEATURE2_VEC_CRYPTO);
GET_FEATURE2(PPC2_ISA300, QEMU_PPC_FEATURE2_ARCH_3_00 |
- QEMU_PPC_FEATURE2_DARN);
+ QEMU_PPC_FEATURE2_DARN | QEMU_PPC_FEATURE2_HAS_IEEE128);
#undef GET_FEATURE
#undef GET_FEATURE2
--
2.32.0