diff options
| author | Daniil Kovalev <dkovalev@compiler-toolchain-for.me> | 2023-04-04 08:21:54 +0300 |
|---|---|---|
| committer | Michael Tokarev <mjt@tls.msk.ru> | 2023-05-18 21:09:59 +0300 |
| commit | 95cb7a725546bb1943e5d68e49f27fd20881f02e (patch) | |
| tree | 88586f2c9c189e0798d50f2d2893ef2ce21c09ce /linux-user | |
| parent | e7f1150829b8855244e1a9568e996dea12628c67 (diff) | |
linux-user: Fix mips fp64 executables loading
If a program requires fr1, we should set the FR bit of CP0 control status
register and add F64 hardware flag. The corresponding `else if` branch
statement is copied from the linux kernel sources (see `arch_check_elf` function
in linux/arch/mips/kernel/elf.c).
Signed-off-by: Daniil Kovalev <dkovalev@compiler-toolchain-for.me>
Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Message-Id: <20230404052153.16617-1-dkovalev@compiler-toolchain-for.me>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
(cherry picked from commit a0f8d2701b205d9d7986aa555e0566b13dc18fa0)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Diffstat (limited to 'linux-user')
| -rw-r--r-- | linux-user/mips/cpu_loop.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/linux-user/mips/cpu_loop.c b/linux-user/mips/cpu_loop.c index d5c1c7941d..8735e58bad 100644 --- a/linux-user/mips/cpu_loop.c +++ b/linux-user/mips/cpu_loop.c @@ -290,7 +290,10 @@ void target_cpu_copy_regs(CPUArchState *env, struct target_pt_regs *regs) env->CP0_Status |= (1 << CP0St_FR); env->hflags |= MIPS_HFLAG_F64; } - } else if (!prog_req.fre && !prog_req.frdefault && + } else if (prog_req.fr1) { + env->CP0_Status |= (1 << CP0St_FR); + env->hflags |= MIPS_HFLAG_F64; + } else if (!prog_req.fre && !prog_req.frdefault && !prog_req.fr1 && !prog_req.single && !prog_req.soft) { fprintf(stderr, "qemu: Can't find a matching FPU mode\n"); exit(1); |