linux-user: Check for ieee128 fpbits in PPC64 HWCAP2 feature list

glibc 2.34 is now checking for this in hwcaps at
runtime [1] 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)

[1] https://sourceware.org/git/?p=glibc.git;a=commitdiff;h=d337345ce145e23c5f3a956f349d924fdf54ce2d;hp=eb24865637a271ab7dad13190330105eab0d478d

Signed-off-by: Khem Raj <raj.khem@gmail.com>
Cc: Florian Weimer <fweimer@redhat.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20210614191729.2981488-1-raj.khem@gmail.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

diff --git a/linux-user/elfload.c b/linux-user/elfload.c
index 17ab06f..e7dd18f 100644 (file)
--- 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