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From: Richard Henderson <richard.henderson@linaro.org>
To: qemu-devel@nongnu.org
Subject: [PATCH v2 04/25] linux-user: Pass CPUArchState to target_restore_altstack
Date: Sun, 25 Apr 2021 19:53:13 -0700	[thread overview]
Message-ID: <20210426025334.1168495-5-richard.henderson@linaro.org> (raw)
In-Reply-To: <20210426025334.1168495-1-richard.henderson@linaro.org>

In most cases we were already passing get_sp_from_cpustate
directly to the function.  In other cases, we were passing
a local variable which already contained the same value.
In the rest of the cases, we were passing the stack pointer
out of env directly.

Reviewed by: Warner Losh <imp@bsdimp.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 linux-user/signal-common.h     | 2 +-
 linux-user/aarch64/signal.c    | 2 +-
 linux-user/alpha/signal.c      | 2 +-
 linux-user/arm/signal.c        | 4 ++--
 linux-user/hexagon/signal.c    | 2 +-
 linux-user/hppa/signal.c       | 2 +-
 linux-user/i386/signal.c       | 2 +-
 linux-user/m68k/signal.c       | 2 +-
 linux-user/microblaze/signal.c | 2 +-
 linux-user/mips/signal.c       | 2 +-
 linux-user/nios2/signal.c      | 2 +-
 linux-user/openrisc/signal.c   | 2 +-
 linux-user/ppc/signal.c        | 2 +-
 linux-user/riscv/signal.c      | 2 +-
 linux-user/s390x/signal.c      | 2 +-
 linux-user/sh4/signal.c        | 2 +-
 linux-user/signal.c            | 6 +++---
 linux-user/xtensa/signal.c     | 2 +-
 18 files changed, 21 insertions(+), 21 deletions(-)

diff --git a/linux-user/signal-common.h b/linux-user/signal-common.h
index 34b963af9a..ea86328b28 100644
--- a/linux-user/signal-common.h
+++ b/linux-user/signal-common.h
@@ -24,7 +24,7 @@ int on_sig_stack(unsigned long sp);
 int sas_ss_flags(unsigned long sp);
 abi_ulong target_sigsp(abi_ulong sp, struct target_sigaction *ka);
 void target_save_altstack(target_stack_t *uss, CPUArchState *env);
-abi_long target_restore_altstack(target_stack_t *uss, abi_ulong sp);
+abi_long target_restore_altstack(target_stack_t *uss, CPUArchState *env);
 
 static inline void target_sigemptyset(target_sigset_t *set)
 {
diff --git a/linux-user/aarch64/signal.c b/linux-user/aarch64/signal.c
index 2a1b7dbcdc..662bcd1c4e 100644
--- a/linux-user/aarch64/signal.c
+++ b/linux-user/aarch64/signal.c
@@ -561,7 +561,7 @@ long do_rt_sigreturn(CPUARMState *env)
         goto badframe;
     }
 
-    target_restore_altstack(&frame->uc.tuc_stack, get_sp_from_cpustate(env));
+    target_restore_altstack(&frame->uc.tuc_stack, env);
 
     unlock_user_struct(frame, frame_addr, 0);
     return -TARGET_QEMU_ESIGRETURN;
diff --git a/linux-user/alpha/signal.c b/linux-user/alpha/signal.c
index 011da0a53b..1129ffeea1 100644
--- a/linux-user/alpha/signal.c
+++ b/linux-user/alpha/signal.c
@@ -257,7 +257,7 @@ long do_rt_sigreturn(CPUAlphaState *env)
     set_sigmask(&set);
 
     restore_sigcontext(env, &frame->uc.tuc_mcontext);
-    target_restore_altstack(&frame->uc.tuc_stack, env->ir[IR_SP]);
+    target_restore_altstack(&frame->uc.tuc_stack, env);
 
     unlock_user_struct(frame, frame_addr, 0);
     return -TARGET_QEMU_ESIGRETURN;
diff --git a/linux-user/arm/signal.c b/linux-user/arm/signal.c
index b7a772302f..32b68ee302 100644
--- a/linux-user/arm/signal.c
+++ b/linux-user/arm/signal.c
@@ -685,7 +685,7 @@ static int do_sigframe_return_v2(CPUARMState *env,
         }
     }
 
-    target_restore_altstack(&uc->tuc_stack, get_sp_from_cpustate(env));
+    target_restore_altstack(&uc->tuc_stack, env);
 
 #if 0
     /* Send SIGTRAP if we're single-stepping */
@@ -769,7 +769,7 @@ static long do_rt_sigreturn_v1(CPUARMState *env)
         goto badframe;
     }
 
-    target_restore_altstack(&frame->uc.tuc_stack, get_sp_from_cpustate(env));
+    target_restore_altstack(&frame->uc.tuc_stack, env);
 
 #if 0
     /* Send SIGTRAP if we're single-stepping */
diff --git a/linux-user/hexagon/signal.c b/linux-user/hexagon/signal.c
index 3854eb4709..85eab5e943 100644
--- a/linux-user/hexagon/signal.c
+++ b/linux-user/hexagon/signal.c
@@ -260,7 +260,7 @@ long do_rt_sigreturn(CPUHexagonState *env)
     }
 
     restore_ucontext(env, &frame->uc);
-    target_restore_altstack(&frame->uc.uc_stack, get_sp_from_cpustate(env));
+    target_restore_altstack(&frame->uc.uc_stack, env);
 
     unlock_user_struct(frame, frame_addr, 0);
     return -TARGET_QEMU_ESIGRETURN;
diff --git a/linux-user/hppa/signal.c b/linux-user/hppa/signal.c
index 578874cf27..0e266f472d 100644
--- a/linux-user/hppa/signal.c
+++ b/linux-user/hppa/signal.c
@@ -187,7 +187,7 @@ long do_rt_sigreturn(CPUArchState *env)
     set_sigmask(&set);
 
     restore_sigcontext(env, &frame->uc.tuc_mcontext);
-    target_restore_altstack(&frame->uc.tuc_stack, env->gr[30]);
+    target_restore_altstack(&frame->uc.tuc_stack, env);
 
     unlock_user_struct(frame, frame_addr, 0);
     return -TARGET_QEMU_ESIGRETURN;
diff --git a/linux-user/i386/signal.c b/linux-user/i386/signal.c
index 3a0a1546a6..8701774e37 100644
--- a/linux-user/i386/signal.c
+++ b/linux-user/i386/signal.c
@@ -581,7 +581,7 @@ long do_rt_sigreturn(CPUX86State *env)
         goto badframe;
     }
 
-    target_restore_altstack(&frame->uc.tuc_stack, get_sp_from_cpustate(env));
+    target_restore_altstack(&frame->uc.tuc_stack, env);
 
     unlock_user_struct(frame, frame_addr, 0);
     return -TARGET_QEMU_ESIGRETURN;
diff --git a/linux-user/m68k/signal.c b/linux-user/m68k/signal.c
index 004b59fb61..d06230655e 100644
--- a/linux-user/m68k/signal.c
+++ b/linux-user/m68k/signal.c
@@ -400,7 +400,7 @@ long do_rt_sigreturn(CPUM68KState *env)
     if (target_rt_restore_ucontext(env, &frame->uc))
         goto badframe;
 
-    target_restore_altstack(&frame->uc.tuc_stack, get_sp_from_cpustate(env));
+    target_restore_altstack(&frame->uc.tuc_stack, env);
 
     unlock_user_struct(frame, frame_addr, 0);
     return -TARGET_QEMU_ESIGRETURN;
diff --git a/linux-user/microblaze/signal.c b/linux-user/microblaze/signal.c
index f59a1faf47..4c483bd8c6 100644
--- a/linux-user/microblaze/signal.c
+++ b/linux-user/microblaze/signal.c
@@ -209,7 +209,7 @@ long do_rt_sigreturn(CPUMBState *env)
 
     restore_sigcontext(&frame->uc.tuc_mcontext, env);
 
-    target_restore_altstack(&frame->uc.tuc_stack, get_sp_from_cpustate(env));
+    target_restore_altstack(&frame->uc.tuc_stack, env);
 
     unlock_user_struct(frame, frame_addr, 0);
     return -TARGET_QEMU_ESIGRETURN;
diff --git a/linux-user/mips/signal.c b/linux-user/mips/signal.c
index 456fa64f41..e6be807a81 100644
--- a/linux-user/mips/signal.c
+++ b/linux-user/mips/signal.c
@@ -368,7 +368,7 @@ long do_rt_sigreturn(CPUMIPSState *env)
     set_sigmask(&blocked);
 
     restore_sigcontext(env, &frame->rs_uc.tuc_mcontext);
-    target_restore_altstack(&frame->rs_uc.tuc_stack, get_sp_from_cpustate(env));
+    target_restore_altstack(&frame->rs_uc.tuc_stack, env);
 
     env->active_tc.PC = env->CP0_EPC;
     mips_set_hflags_isa_mode_from_pc(env);
diff --git a/linux-user/nios2/signal.c b/linux-user/nios2/signal.c
index 751ea88811..cc3872f11d 100644
--- a/linux-user/nios2/signal.c
+++ b/linux-user/nios2/signal.c
@@ -128,7 +128,7 @@ static int rt_restore_ucontext(CPUNios2State *env, struct target_ucontext *uc,
     __get_user(env->regs[R_RA], &gregs[23]);
     __get_user(env->regs[R_SP], &gregs[28]);
 
-    target_restore_altstack(&uc->tuc_stack, get_sp_from_cpustate(env));
+    target_restore_altstack(&uc->tuc_stack, env);
 
     *pr2 = env->regs[2];
     return 0;
diff --git a/linux-user/openrisc/signal.c b/linux-user/openrisc/signal.c
index 86f94d7f76..5c5640a284 100644
--- a/linux-user/openrisc/signal.c
+++ b/linux-user/openrisc/signal.c
@@ -158,7 +158,7 @@ long do_rt_sigreturn(CPUOpenRISCState *env)
     set_sigmask(&set);
 
     restore_sigcontext(env, &frame->uc.tuc_mcontext);
-    target_restore_altstack(&frame->uc.tuc_stack, frame_addr);
+    target_restore_altstack(&frame->uc.tuc_stack, env);
 
     unlock_user_struct(frame, frame_addr, 0);
     return cpu_get_gpr(env, 11);
diff --git a/linux-user/ppc/signal.c b/linux-user/ppc/signal.c
index 79f265f82e..8e1e642807 100644
--- a/linux-user/ppc/signal.c
+++ b/linux-user/ppc/signal.c
@@ -656,7 +656,7 @@ long do_rt_sigreturn(CPUPPCState *env)
     if (do_setcontext(&rt_sf->uc, env, 1))
         goto sigsegv;
 
-    target_restore_altstack(&rt_sf->uc.tuc_stack, env->gpr[1]);
+    target_restore_altstack(&rt_sf->uc.tuc_stack, env);
 
     unlock_user_struct(rt_sf, rt_sf_addr, 1);
     return -TARGET_QEMU_ESIGRETURN;
diff --git a/linux-user/riscv/signal.c b/linux-user/riscv/signal.c
index 81d1129da3..9405c7fd9a 100644
--- a/linux-user/riscv/signal.c
+++ b/linux-user/riscv/signal.c
@@ -192,7 +192,7 @@ long do_rt_sigreturn(CPURISCVState *env)
     }
 
     restore_ucontext(env, &frame->uc);
-    target_restore_altstack(&frame->uc.uc_stack, get_sp_from_cpustate(env));
+    target_restore_altstack(&frame->uc.uc_stack, env);
 
     unlock_user_struct(frame, frame_addr, 0);
     return -TARGET_QEMU_ESIGRETURN;
diff --git a/linux-user/s390x/signal.c b/linux-user/s390x/signal.c
index 73806f5472..b68b44ae7e 100644
--- a/linux-user/s390x/signal.c
+++ b/linux-user/s390x/signal.c
@@ -307,7 +307,7 @@ long do_rt_sigreturn(CPUS390XState *env)
         goto badframe;
     }
 
-    target_restore_altstack(&frame->uc.tuc_stack, get_sp_from_cpustate(env));
+    target_restore_altstack(&frame->uc.tuc_stack, env);
 
     unlock_user_struct(frame, frame_addr, 0);
     return -TARGET_QEMU_ESIGRETURN;
diff --git a/linux-user/sh4/signal.c b/linux-user/sh4/signal.c
index 684f18da58..0451e65806 100644
--- a/linux-user/sh4/signal.c
+++ b/linux-user/sh4/signal.c
@@ -323,7 +323,7 @@ long do_rt_sigreturn(CPUSH4State *regs)
     set_sigmask(&blocked);
 
     restore_sigcontext(regs, &frame->uc.tuc_mcontext);
-    target_restore_altstack(&frame->uc.tuc_stack, get_sp_from_cpustate(regs));
+    target_restore_altstack(&frame->uc.tuc_stack, regs);
 
     unlock_user_struct(frame, frame_addr, 0);
     return -TARGET_QEMU_ESIGRETURN;
diff --git a/linux-user/signal.c b/linux-user/signal.c
index 83891f7c47..9016896dcd 100644
--- a/linux-user/signal.c
+++ b/linux-user/signal.c
@@ -297,7 +297,7 @@ void target_save_altstack(target_stack_t *uss, CPUArchState *env)
     __put_user(ts->sigaltstack_used.ss_size, &uss->ss_size);
 }
 
-abi_long target_restore_altstack(target_stack_t *uss, abi_ulong sp)
+abi_long target_restore_altstack(target_stack_t *uss, CPUArchState *env)
 {
     TaskState *ts = (TaskState *)thread_cpu->opaque;
     size_t minstacksize = TARGET_MINSIGSTKSZ;
@@ -315,7 +315,7 @@ abi_long target_restore_altstack(target_stack_t *uss, abi_ulong sp)
     __get_user(ss.ss_size, &uss->ss_size);
     __get_user(ss.ss_flags, &uss->ss_flags);
 
-    if (on_sig_stack(sp)) {
+    if (on_sig_stack(get_sp_from_cpustate(env))) {
         return -TARGET_EPERM;
     }
 
@@ -820,7 +820,7 @@ abi_long do_sigaltstack(abi_ulong uss_addr, abi_ulong uoss_addr,
         if (!lock_user_struct(VERIFY_READ, uss, uss_addr, 1)) {
             goto out;
         }
-        ret = target_restore_altstack(uss, get_sp_from_cpustate(env));
+        ret = target_restore_altstack(uss, env);
         if (ret) {
             goto out;
         }
diff --git a/linux-user/xtensa/signal.c b/linux-user/xtensa/signal.c
index 22ec6cdeb9..72771e1294 100644
--- a/linux-user/xtensa/signal.c
+++ b/linux-user/xtensa/signal.c
@@ -253,7 +253,7 @@ long do_rt_sigreturn(CPUXtensaState *env)
     set_sigmask(&set);
 
     restore_sigcontext(env, frame);
-    target_restore_altstack(&frame->uc.tuc_stack, get_sp_from_cpustate(env));
+    target_restore_altstack(&frame->uc.tuc_stack, env);
 
     unlock_user_struct(frame, frame_addr, 0);
     return -TARGET_QEMU_ESIGRETURN;
-- 
2.25.1



  parent reply	other threads:[~2021-04-26  2:58 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-26  2:53 [PATCH v2 00/25] linux-user/sparc: Implement rt signals Richard Henderson
2021-04-26  2:53 ` [PATCH v2 01/25] linux-user: Split out target_restore_altstack Richard Henderson
2021-04-26  2:53 ` [PATCH v2 02/25] linux-user: Use target_restore_altstack in all sigreturn Richard Henderson
2021-04-26  2:53 ` [PATCH v2 03/25] linux-user: Pass CPUArchState to do_sigaltstack Richard Henderson
2021-04-26  2:53 ` Richard Henderson [this message]
2021-04-26  2:53 ` [PATCH v2 05/25] linux-user/sparc: Include TARGET_STACK_BIAS in get_sp_from_cpustate Richard Henderson
2021-04-26  2:53 ` [PATCH v2 06/25] linux-user/sparc: Clean up init_thread Richard Henderson
2021-04-26  2:53 ` [PATCH v2 07/25] linux-user/sparc: Merge sparc64 target_syscall.h Richard Henderson
2021-05-17 10:21   ` Laurent Vivier
2021-05-17 17:35     ` Richard Henderson
2021-04-26  2:53 ` [PATCH v2 08/25] linux-user/sparc: Merge sparc64 target_elf.h Richard Henderson
2021-04-26  2:53 ` [PATCH v2 09/25] linux-user/sparc: Merge sparc64 target_structs.h Richard Henderson
2021-04-26  2:53 ` [PATCH v2 10/25] linux-user/sparc: Merge sparc64 termbits.h Richard Henderson
2021-04-26  2:53 ` [PATCH v2 11/25] linux-user/sparc: Merge sparc64/ into sparc/ Richard Henderson
2021-04-26  2:53 ` [PATCH v2 12/25] linux-user/sparc: Remove target_sigcontext as unused Richard Henderson
2021-04-26  2:53 ` [PATCH v2 13/25] linux-user/sparc: Remove target_rt_signal_frame " Richard Henderson
2021-04-26  2:53 ` [PATCH v2 14/25] linux-user/sparc: Fix the stackframe structure Richard Henderson
2021-04-26  2:53 ` [PATCH v2 15/25] linux-user/sparc: Use target_pt_regs Richard Henderson
2021-04-26  2:53 ` [PATCH v2 16/25] linux-user/sparc: Split out save_reg_win Richard Henderson
2021-04-26  2:53 ` [PATCH v2 17/25] linux-user/sparc: Clean up get_sigframe Richard Henderson
2021-04-26  2:53 ` [PATCH v2 18/25] linux-user/sparc: Save and restore fpu in signal frame Richard Henderson
2021-04-26  2:53 ` [PATCH v2 19/25] linux-user/sparc: Add rwin_save to " Richard Henderson
2021-04-26  2:53 ` [PATCH v2 20/25] linux-user/sparc: Clean up setup_frame Richard Henderson
2021-04-26  2:53 ` [PATCH v2 21/25] linux-user/sparc: Minor corrections to do_sigreturn Richard Henderson
2021-04-26  2:53 ` [PATCH v2 22/25] linux-user/sparc: Add 64-bit support to fpu save/restore Richard Henderson
2021-04-26  2:53 ` [PATCH v2 23/25] linux-user/sparc: Implement sparc32 rt signals Richard Henderson
2021-04-26  2:53 ` [PATCH v2 24/25] linux-user/sparc: Implement sparc64 " Richard Henderson
2021-04-26  2:53 ` [PATCH v2 25/25] tests/tcg/sparc64: Re-enable linux-test Richard Henderson
2021-04-26  3:06 ` [PATCH v2 00/25] linux-user/sparc: Implement rt signals Richard Henderson
2021-04-26 11:41   ` Alex Bennée
2021-05-15 19:43 ` Laurent Vivier

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