From: Richard Henderson <richard.henderson@linaro.org>
To: qemu-devel@nongnu.org
Cc: peter.maydell@linaro.org, laurent@vivier.eu
Subject: [PATCH v2 21/30] linux-user/microblaze: Fix SIGFPE si_codes
Date: Sat, 21 Aug 2021 20:55:28 -0700 [thread overview]
Message-ID: <20210822035537.283193-22-richard.henderson@linaro.org> (raw)
In-Reply-To: <20210822035537.283193-1-richard.henderson@linaro.org>
Fix a typo for ESR_EC_DIVZERO, which is integral not floating-point.
Fix the if ladder for decoding floating-point exceptions.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
linux-user/microblaze/cpu_loop.c | 20 +++++++++++++++-----
1 file changed, 15 insertions(+), 5 deletions(-)
diff --git a/linux-user/microblaze/cpu_loop.c b/linux-user/microblaze/cpu_loop.c
index 9e07e52573..4a75c853b2 100644
--- a/linux-user/microblaze/cpu_loop.c
+++ b/linux-user/microblaze/cpu_loop.c
@@ -81,15 +81,25 @@ void cpu_loop(CPUMBState *env)
env->iflags &= ~(IMM_FLAG | D_FLAG);
switch (env->esr & 31) {
case ESR_EC_DIVZERO:
- si_code = TARGET_FPE_FLTDIV;
+ si_code = TARGET_FPE_INTDIV;
break;
case ESR_EC_FPU:
- si_code = 0;
- if (env->fsr & FSR_IO) {
+ /*
+ * Note that the kernel passes along fsr as si_code
+ * if there's no recognized bit set. Possibly this
+ * implies that si_code is 0, but follow the structure.
+ */
+ si_code = env->fsr;
+ if (si_code & FSR_IO) {
si_code = TARGET_FPE_FLTINV;
- }
- if (env->fsr & FSR_DZ) {
+ } else if (si_code & FSR_OF) {
+ si_code = TARGET_FPE_FLTOVF;
+ } else if (si_code & FSR_UF) {
+ si_code = TARGET_FPE_FLTUND;
+ } else if (si_code & FSR_DZ) {
si_code = TARGET_FPE_FLTDIV;
+ } else if (si_code & FSR_DO) {
+ si_code = TARGET_FPE_FLTRES;
}
break;
default:
--
2.25.1
next prev parent reply other threads:[~2021-08-22 4:20 UTC|newest]
Thread overview: 60+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-22 3:55 [PATCH v2 00/30] linux-user: Clean up siginfo_t handling Richard Henderson
2021-08-22 3:55 ` [PATCH v2 01/30] linux-user/aarch64: Set siginfo_t addr field for SIGTRAP signals Richard Henderson
2021-08-22 3:55 ` [PATCH v2 02/30] linux-user/arm: " Richard Henderson
2021-08-22 3:55 ` [PATCH v2 03/30] linux-user/arm: Use force_sig() to deliver fpa11 emulation SIGFPE Richard Henderson
2021-08-22 3:55 ` [PATCH v2 04/30] linux-user: Zero out target_siginfo_t in force_sig() Richard Henderson
2021-08-24 16:32 ` Philippe Mathieu-Daudé
2021-08-22 3:55 ` [PATCH v2 05/30] linux-user: Provide new force_sig_fault() function Richard Henderson
2021-08-24 16:36 ` Philippe Mathieu-Daudé
2021-08-22 3:55 ` [PATCH v2 06/30] linux-user: Provide new force_sigsegv_for_addr() function Richard Henderson
2021-08-24 16:20 ` Peter Maydell
2021-08-22 3:55 ` [PATCH v2 07/30] linux-user/arm: Use force_sig_fault() Richard Henderson
2021-08-24 16:38 ` Philippe Mathieu-Daudé
2021-08-22 3:55 ` [PATCH v2 08/30] linux-user/aarch64: " Richard Henderson
2021-08-24 16:39 ` Philippe Mathieu-Daudé
2021-08-22 3:55 ` [PATCH v2 09/30] linux-user/alpha: Set TRAP_UNK for bugchk and unknown gentrap Richard Henderson
2021-08-24 16:22 ` Peter Maydell
2021-08-22 3:55 ` [PATCH v2 10/30] linux-user/alpha: Set FPE_FLTUNK for gentrap ROPRAND Richard Henderson
2021-08-24 16:22 ` Peter Maydell
2021-08-22 3:55 ` [PATCH v2 11/30] linux-user/alpha: Use force_sig_fault, force_sigsegv_code Richard Henderson
2021-08-24 16:24 ` Peter Maydell
2021-08-22 3:55 ` [PATCH v2 12/30] linux-user/cris: " Richard Henderson
2021-08-24 16:27 ` Peter Maydell
2021-08-22 3:55 ` [PATCH v2 13/30] linux-user/hexagon: Use force_sigsegv_code Richard Henderson
2021-08-24 16:29 ` Peter Maydell
2021-08-22 3:55 ` [PATCH v2 14/30] linux-user/hppa: Use force_sig_fault, force_sigsegv_for_addr Richard Henderson
2021-08-24 16:32 ` Peter Maydell
2021-08-22 3:55 ` [PATCH v2 15/30] linux-user/hppa: Use the proper si_code for PRIV_OPR, PRIV_REG, OVERFLOW Richard Henderson
2021-08-24 16:34 ` Peter Maydell
2021-08-22 3:55 ` [PATCH v2 16/30] linux-user/hppa: Set FPE_CONDTRAP for COND Richard Henderson
2021-08-24 16:37 ` Peter Maydell
2021-08-22 3:55 ` [PATCH v2 17/30] linux-user/i386: Split out maybe_handle_vm86_trap Richard Henderson
2021-08-24 16:38 ` Peter Maydell
2021-08-22 3:55 ` [PATCH v2 18/30] linux-user/i386: Use force_sig, force_sig_fault, force_sigsegv_for_addr Richard Henderson
2021-08-24 16:40 ` Peter Maydell
2021-08-22 3:55 ` [PATCH v2 19/30] linux-user/m68k: Use " Richard Henderson
2021-08-24 16:41 ` Peter Maydell
2021-08-22 3:55 ` [PATCH v2 20/30] linux-user/microblaze: " Richard Henderson
2021-08-24 16:42 ` Peter Maydell
2021-08-22 3:55 ` Richard Henderson [this message]
2021-08-24 16:55 ` [PATCH v2 21/30] linux-user/microblaze: Fix SIGFPE si_codes Peter Maydell
2021-08-22 3:55 ` [PATCH v2 22/30] linux-user/mips: Improve do_break Richard Henderson
2021-08-24 16:46 ` Philippe Mathieu-Daudé
2021-08-22 3:55 ` [PATCH v2 23/30] linux-user/mips: Use force_sig_fault, force_sigsegv_for_addr Richard Henderson
2021-08-24 17:04 ` Peter Maydell
2021-08-22 3:55 ` [PATCH v2 24/30] linux-user/openrisc: " Richard Henderson
2021-08-24 17:17 ` Peter Maydell
2021-09-19 17:49 ` Richard Henderson
2021-09-21 20:26 ` Stafford Horne
2021-08-22 3:55 ` [PATCH v2 25/30] linux-user/ppc: " Richard Henderson
2021-08-24 17:19 ` Peter Maydell
2021-08-22 3:55 ` [PATCH v2 26/30] linux-user/riscv: " Richard Henderson
2021-08-24 17:23 ` Peter Maydell
2021-08-22 3:55 ` [PATCH v2 27/30] linux-user/s390x: " Richard Henderson
2021-08-24 17:23 ` Peter Maydell
2021-08-22 3:55 ` [PATCH v2 28/30] linux-user/sh4: " Richard Henderson
2021-08-24 17:24 ` Peter Maydell
2021-08-22 3:55 ` [PATCH v2 29/30] linux-user/sparc: " Richard Henderson
2021-08-24 17:25 ` Peter Maydell
2021-08-22 3:55 ` [PATCH v2 30/30] linux-user/xtensa: " Richard Henderson
2021-08-24 17:26 ` Peter Maydell
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