* [PATCH v2 0/9] linux-user: split internals out of qemu.h
@ 2021-09-08 15:43 Peter Maydell
2021-09-08 15:43 ` [PATCH v2 1/9] linux-user: Fix coding style nits in qemu.h Peter Maydell
` (9 more replies)
0 siblings, 10 replies; 24+ messages in thread
From: Peter Maydell @ 2021-09-08 15:43 UTC (permalink / raw)
To: qemu-devel; +Cc: Riku Voipio, Laurent Vivier
linux-user/qemu.h is an awkward header, for two reasons:
(1) its name suggests it's a rather common generic header,
but it's actually specific to the usermode emulators
(2) it is a mix of:
* lots of things internal to the implementation of linux-user
* functions that a few files outside linux-user want
(mostly the user-access functions like lock_user,
get/put_user_*, etc, and also the TaskStruct definition)
This patchset tries to clean it up a bit by at least splitting
most of the "just internal to linux-user" parts out of qemu.h
and putting them in a handful of different .h files that are
then included by the linux-user files that need them.
I think the ideal would probably be to eventually junk
qemu.h entirely and have a few separate headers specifically
for the bits that non-linux-user code needs (eg a 'user-access.h'
for the get/put_user stuff), perhaps located somewhere that
means we don't need to put linux-user/ on the include path.
But that's awkward as it needs interaction with bsd-user too.
So this much cleanup seemed like a reasonable start...
Changes v1->v2:
* rebased
* fixed a few minor niggles spotted in v1 during review
* use existing signal-common.h rather than creating a new
header for signal-related functions
Patches still needing review: 3, 4, 5, 7
thanks
-- PMM
Peter Maydell (9):
linux-user: Fix coding style nits in qemu.h
linux-user: Split strace prototypes into strace.h
linux-user: Split signal-related prototypes into signal-common.h
linux-user: Split loader-related prototypes into loader.h
linux-user: Split mmap prototypes into user-mmap.h
linux-user: Split safe-syscall macro into its own header
linux-user: Split linux-user internals out of qemu.h
linux-user: Don't include gdbstub.h in qemu.h
linux-user: Drop unneeded includes from qemu.h
linux-user/loader.h | 59 +++++
linux-user/qemu.h | 429 ++-----------------------------
linux-user/safe-syscall.h | 154 +++++++++++
linux-user/signal-common.h | 36 +++
linux-user/strace.h | 38 +++
linux-user/user-internals.h | 186 ++++++++++++++
linux-user/user-mmap.h | 34 +++
gdbstub.c | 2 +-
linux-user/aarch64/cpu_loop.c | 2 +
linux-user/aarch64/signal.c | 1 +
linux-user/alpha/cpu_loop.c | 2 +
linux-user/alpha/signal.c | 1 +
linux-user/arm/cpu_loop.c | 2 +
linux-user/arm/signal.c | 1 +
linux-user/cris/cpu_loop.c | 2 +
linux-user/cris/signal.c | 1 +
linux-user/elfload.c | 3 +
linux-user/exit.c | 2 +
linux-user/fd-trans.c | 2 +
linux-user/flatload.c | 3 +
linux-user/hexagon/cpu_loop.c | 2 +
linux-user/hexagon/signal.c | 1 +
linux-user/hppa/cpu_loop.c | 2 +
linux-user/hppa/signal.c | 1 +
linux-user/i386/cpu_loop.c | 3 +
linux-user/i386/signal.c | 1 +
linux-user/linuxload.c | 2 +
linux-user/m68k/cpu_loop.c | 2 +
linux-user/m68k/signal.c | 1 +
linux-user/main.c | 5 +
linux-user/microblaze/cpu_loop.c | 2 +
linux-user/microblaze/signal.c | 1 +
linux-user/mips/cpu_loop.c | 2 +
linux-user/mips/signal.c | 1 +
linux-user/mmap.c | 2 +
linux-user/nios2/cpu_loop.c | 2 +
linux-user/nios2/signal.c | 1 +
linux-user/openrisc/cpu_loop.c | 2 +
linux-user/openrisc/signal.c | 1 +
linux-user/ppc/cpu_loop.c | 2 +
linux-user/ppc/signal.c | 1 +
linux-user/riscv/cpu_loop.c | 2 +
linux-user/riscv/signal.c | 1 +
linux-user/s390x/cpu_loop.c | 2 +
linux-user/s390x/signal.c | 1 +
linux-user/semihost.c | 1 +
linux-user/sh4/cpu_loop.c | 2 +
linux-user/sh4/signal.c | 1 +
linux-user/signal.c | 5 +
linux-user/sparc/cpu_loop.c | 2 +
linux-user/sparc/signal.c | 1 +
linux-user/strace.c | 3 +
linux-user/syscall.c | 6 +
linux-user/uaccess.c | 1 +
linux-user/uname.c | 1 +
linux-user/vm86.c | 1 +
linux-user/xtensa/cpu_loop.c | 2 +
linux-user/xtensa/signal.c | 1 +
semihosting/arm-compat-semi.c | 2 +-
target/m68k/m68k-semi.c | 2 +-
target/nios2/nios2-semi.c | 2 +-
thunk.c | 1 +
62 files changed, 620 insertions(+), 417 deletions(-)
create mode 100644 linux-user/loader.h
create mode 100644 linux-user/safe-syscall.h
create mode 100644 linux-user/strace.h
create mode 100644 linux-user/user-internals.h
create mode 100644 linux-user/user-mmap.h
--
2.20.1
^ permalink raw reply [flat|nested] 24+ messages in thread
* [PATCH v2 1/9] linux-user: Fix coding style nits in qemu.h
2021-09-08 15:43 [PATCH v2 0/9] linux-user: split internals out of qemu.h Peter Maydell
@ 2021-09-08 15:43 ` Peter Maydell
2021-09-12 16:07 ` Richard Henderson
2021-09-08 15:43 ` [PATCH v2 2/9] linux-user: Split strace prototypes into strace.h Peter Maydell
` (8 subsequent siblings)
9 siblings, 1 reply; 24+ messages in thread
From: Peter Maydell @ 2021-09-08 15:43 UTC (permalink / raw)
To: qemu-devel; +Cc: Riku Voipio, Laurent Vivier
We're about to move a lot of the code in qemu.h out into different
header files; fix the coding style nits first so that checkpatch
is happy with the pure code-movement patches. This is mostly
block-comment style but also a few whitespace issues.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
---
linux-user/qemu.h | 47 ++++++++++++++++++++++++++++++-----------------
1 file changed, 30 insertions(+), 17 deletions(-)
diff --git a/linux-user/qemu.h b/linux-user/qemu.h
index 3b0b6b75fe8..34b975ba502 100644
--- a/linux-user/qemu.h
+++ b/linux-user/qemu.h
@@ -15,12 +15,14 @@
#include "target_syscall.h"
#include "exec/gdbstub.h"
-/* This is the size of the host kernel's sigset_t, needed where we make
+/*
+ * This is the size of the host kernel's sigset_t, needed where we make
* direct system calls that take a sigset_t pointer and a size.
*/
#define SIGSET_T_SIZE (_NSIG / 8)
-/* This struct is used to hold certain information about the image.
+/*
+ * This struct is used to hold certain information about the image.
* Basically, it replicates in user space what would be certain
* task_struct fields in the kernel
*/
@@ -48,13 +50,13 @@ struct image_info {
abi_ulong env_strings;
abi_ulong file_string;
uint32_t elf_flags;
- int personality;
+ int personality;
abi_ulong alignment;
/* The fields below are used in FDPIC mode. */
abi_ulong loadmap_addr;
uint16_t nsegs;
- void *loadsegs;
+ void *loadsegs;
abi_ulong pt_dynamic_addr;
abi_ulong interpreter_loadmap_addr;
abi_ulong interpreter_pt_dynamic_addr;
@@ -98,8 +100,10 @@ struct emulated_sigtable {
target_siginfo_t info;
};
-/* NOTE: we force a big alignment so that the stack stored after is
- aligned too */
+/*
+ * NOTE: we force a big alignment so that the stack stored after is
+ * aligned too
+ */
typedef struct TaskState {
pid_t ts_tid; /* tid (or pid) of this task */
#ifdef TARGET_ARM
@@ -134,20 +138,23 @@ typedef struct TaskState {
struct emulated_sigtable sync_signal;
struct emulated_sigtable sigtab[TARGET_NSIG];
- /* This thread's signal mask, as requested by the guest program.
+ /*
+ * This thread's signal mask, as requested by the guest program.
* The actual signal mask of this thread may differ:
* + we don't let SIGSEGV and SIGBUS be blocked while running guest code
* + sometimes we block all signals to avoid races
*/
sigset_t signal_mask;
- /* The signal mask imposed by a guest sigsuspend syscall, if we are
+ /*
+ * The signal mask imposed by a guest sigsuspend syscall, if we are
* currently in the middle of such a syscall
*/
sigset_t sigsuspend_mask;
/* Nonzero if we're leaving a sigsuspend and sigsuspend_mask is valid. */
int in_sigsuspend;
- /* Nonzero if process_pending_signals() needs to do something (either
+ /*
+ * Nonzero if process_pending_signals() needs to do something (either
* handle a pending signal or unblock signals).
* This flag is written from a signal handler so should be accessed via
* the qatomic_read() and qatomic_set() functions. (It is not accessed
@@ -168,8 +175,10 @@ extern unsigned long mmap_min_addr;
/* ??? See if we can avoid exposing so much of the loader internals. */
-/* Read a good amount of data initially, to hopefully get all the
- program headers loaded. */
+/*
+ * Read a good amount of data initially, to hopefully get all the
+ * program headers loaded.
+ */
#define BPRM_BUF_SIZE 1024
/*
@@ -184,7 +193,7 @@ struct linux_binprm {
int argc, envc;
char **argv;
char **envp;
- char * filename; /* Name of binary */
+ char *filename; /* Name of binary */
int (*core_dump)(int, const CPUArchState *); /* coredump routine */
};
@@ -212,10 +221,11 @@ void do_init_thread(struct target_pt_regs *regs, struct image_info *infop);
abi_ulong loader_build_argptr(int envc, int argc, abi_ulong sp,
abi_ulong stringp, int push_ptr);
int loader_exec(int fdexec, const char *filename, char **argv, char **envp,
- struct target_pt_regs * regs, struct image_info *infop,
+ struct target_pt_regs *regs, struct image_info *infop,
struct linux_binprm *);
-/* Returns true if the image uses the FDPIC ABI. If this is the case,
+/*
+ * Returns true if the image uses the FDPIC ABI. If this is the case,
* we have to provide some information (loadmap, pt_dynamic_info) such
* that the program can be relocated adequately. This is also useful
* when handling signals.
@@ -283,7 +293,8 @@ void probe_guest_base(const char *image_name,
* with any of the host errno values.)
*/
-/* A guide to using safe_syscall() to handle interactions between guest
+/*
+ * A guide to using safe_syscall() to handle interactions between guest
* syscalls and guest signals:
*
* Guest syscalls come in two flavours:
@@ -392,7 +403,8 @@ extern long safe_syscall_base(int *pending, long number, ...);
#else
-/* Fallback for architectures which don't yet provide a safe-syscall assembly
+/*
+ * Fallback for architectures which don't yet provide a safe-syscall assembly
* fragment; note that this is racy!
* This should go away when all host architectures have been updated.
*/
@@ -736,7 +748,8 @@ static inline int regpairs_aligned(void *cpu_env, int num) { return 0; }
*/
void preexit_cleanup(CPUArchState *env, int code);
-/* Include target-specific struct and function definitions;
+/*
+ * Include target-specific struct and function definitions;
* they may need access to the target-independent structures
* above, so include them last.
*/
--
2.20.1
^ permalink raw reply related [flat|nested] 24+ messages in thread
* [PATCH v2 2/9] linux-user: Split strace prototypes into strace.h
2021-09-08 15:43 [PATCH v2 0/9] linux-user: split internals out of qemu.h Peter Maydell
2021-09-08 15:43 ` [PATCH v2 1/9] linux-user: Fix coding style nits in qemu.h Peter Maydell
@ 2021-09-08 15:43 ` Peter Maydell
2021-09-12 16:16 ` Richard Henderson
2021-09-08 15:43 ` [PATCH v2 3/9] linux-user: Split signal-related prototypes into signal-common.h Peter Maydell
` (7 subsequent siblings)
9 siblings, 1 reply; 24+ messages in thread
From: Peter Maydell @ 2021-09-08 15:43 UTC (permalink / raw)
To: qemu-devel; +Cc: Riku Voipio, Laurent Vivier
The functions implemented in strace.c are only used in a few files in
linux-user; split them out of qemu.h and into a new strace.h header
which we include in the places that need it.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
---
linux-user/qemu.h | 18 ------------------
linux-user/strace.h | 38 ++++++++++++++++++++++++++++++++++++++
linux-user/signal.c | 1 +
linux-user/strace.c | 2 ++
linux-user/syscall.c | 1 +
5 files changed, 42 insertions(+), 18 deletions(-)
create mode 100644 linux-user/strace.h
diff --git a/linux-user/qemu.h b/linux-user/qemu.h
index 34b975ba502..ad2d49fed9f 100644
--- a/linux-user/qemu.h
+++ b/linux-user/qemu.h
@@ -415,24 +415,6 @@ extern long safe_syscall_base(int *pending, long number, ...);
/* syscall.c */
int host_to_target_waitstatus(int status);
-/* strace.c */
-void print_syscall(void *cpu_env, int num,
- abi_long arg1, abi_long arg2, abi_long arg3,
- abi_long arg4, abi_long arg5, abi_long arg6);
-void print_syscall_ret(void *cpu_env, int num, abi_long ret,
- abi_long arg1, abi_long arg2, abi_long arg3,
- abi_long arg4, abi_long arg5, abi_long arg6);
-/**
- * print_taken_signal:
- * @target_signum: target signal being taken
- * @tinfo: target_siginfo_t which will be passed to the guest for the signal
- *
- * Print strace output indicating that this signal is being taken by the guest,
- * in a format similar to:
- * --- SIGSEGV {si_signo=SIGSEGV, si_code=SI_KERNEL, si_addr=0} ---
- */
-void print_taken_signal(int target_signum, const target_siginfo_t *tinfo);
-
/* signal.c */
void process_pending_signals(CPUArchState *cpu_env);
void signal_init(void);
diff --git a/linux-user/strace.h b/linux-user/strace.h
new file mode 100644
index 00000000000..1e232d07fc8
--- /dev/null
+++ b/linux-user/strace.h
@@ -0,0 +1,38 @@
+/*
+ * strace.h: prototypes for linux-user builtin strace handling
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef LINUX_USER_STRACE_H
+#define LINUX_USER_STRACE_H
+
+void print_syscall(void *cpu_env, int num,
+ abi_long arg1, abi_long arg2, abi_long arg3,
+ abi_long arg4, abi_long arg5, abi_long arg6);
+void print_syscall_ret(void *cpu_env, int num, abi_long ret,
+ abi_long arg1, abi_long arg2, abi_long arg3,
+ abi_long arg4, abi_long arg5, abi_long arg6);
+/**
+ * print_taken_signal:
+ * @target_signum: target signal being taken
+ * @tinfo: target_siginfo_t which will be passed to the guest for the signal
+ *
+ * Print strace output indicating that this signal is being taken by the guest,
+ * in a format similar to:
+ * --- SIGSEGV {si_signo=SIGSEGV, si_code=SI_KERNEL, si_addr=0} ---
+ */
+void print_taken_signal(int target_signum, const target_siginfo_t *tinfo);
+
+#endif /* LINUX_USER_STRACE_H */
diff --git a/linux-user/signal.c b/linux-user/signal.c
index a8faea6f090..ee1934947ac 100644
--- a/linux-user/signal.c
+++ b/linux-user/signal.c
@@ -22,6 +22,7 @@
#include <sys/resource.h>
#include "qemu.h"
+#include "strace.h"
#include "trace.h"
#include "signal-common.h"
diff --git a/linux-user/strace.c b/linux-user/strace.c
index cce0a5d1e35..ee3429fae82 100644
--- a/linux-user/strace.c
+++ b/linux-user/strace.c
@@ -1,4 +1,5 @@
#include "qemu/osdep.h"
+
#include <sys/ipc.h>
#include <sys/msg.h>
#include <sys/sem.h>
@@ -14,6 +15,7 @@
#include <linux/netlink.h>
#include <sched.h>
#include "qemu.h"
+#include "strace.h"
struct syscallname {
int nr;
diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index ccd3892b2df..4ac2801e495 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -127,6 +127,7 @@
#include "uname.h"
#include "qemu.h"
+#include "strace.h"
#include "qemu/guest-random.h"
#include "qemu/selfmap.h"
#include "user/syscall-trace.h"
--
2.20.1
^ permalink raw reply related [flat|nested] 24+ messages in thread
* [PATCH v2 3/9] linux-user: Split signal-related prototypes into signal-common.h
2021-09-08 15:43 [PATCH v2 0/9] linux-user: split internals out of qemu.h Peter Maydell
2021-09-08 15:43 ` [PATCH v2 1/9] linux-user: Fix coding style nits in qemu.h Peter Maydell
2021-09-08 15:43 ` [PATCH v2 2/9] linux-user: Split strace prototypes into strace.h Peter Maydell
@ 2021-09-08 15:43 ` Peter Maydell
2021-09-08 15:59 ` Philippe Mathieu-Daudé
2021-09-12 16:16 ` Richard Henderson
2021-09-08 15:44 ` [PATCH v2 4/9] linux-user: Split loader-related prototypes into loader.h Peter Maydell
` (6 subsequent siblings)
9 siblings, 2 replies; 24+ messages in thread
From: Peter Maydell @ 2021-09-08 15:43 UTC (permalink / raw)
To: qemu-devel; +Cc: Riku Voipio, Laurent Vivier
Split the signal related prototypes into the existing header file
signal-common.h, and include it in those places that now require it.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
v1->v2: use existing signal-common.h instead of new header
---
linux-user/qemu.h | 36 --------------------------------
linux-user/signal-common.h | 36 ++++++++++++++++++++++++++++++++
linux-user/aarch64/cpu_loop.c | 1 +
linux-user/alpha/cpu_loop.c | 1 +
linux-user/arm/cpu_loop.c | 1 +
linux-user/cris/cpu_loop.c | 1 +
linux-user/fd-trans.c | 1 +
linux-user/hexagon/cpu_loop.c | 1 +
linux-user/hppa/cpu_loop.c | 1 +
linux-user/i386/cpu_loop.c | 1 +
linux-user/m68k/cpu_loop.c | 1 +
linux-user/main.c | 1 +
linux-user/microblaze/cpu_loop.c | 1 +
linux-user/mips/cpu_loop.c | 1 +
linux-user/nios2/cpu_loop.c | 1 +
linux-user/openrisc/cpu_loop.c | 1 +
linux-user/ppc/cpu_loop.c | 1 +
linux-user/riscv/cpu_loop.c | 1 +
linux-user/s390x/cpu_loop.c | 1 +
linux-user/sh4/cpu_loop.c | 1 +
linux-user/sparc/cpu_loop.c | 1 +
linux-user/syscall.c | 1 +
linux-user/xtensa/cpu_loop.c | 1 +
23 files changed, 57 insertions(+), 36 deletions(-)
diff --git a/linux-user/qemu.h b/linux-user/qemu.h
index ad2d49fed9f..76d3f5e7eb9 100644
--- a/linux-user/qemu.h
+++ b/linux-user/qemu.h
@@ -415,42 +415,6 @@ extern long safe_syscall_base(int *pending, long number, ...);
/* syscall.c */
int host_to_target_waitstatus(int status);
-/* signal.c */
-void process_pending_signals(CPUArchState *cpu_env);
-void signal_init(void);
-int queue_signal(CPUArchState *env, int sig, int si_type,
- target_siginfo_t *info);
-void host_to_target_siginfo(target_siginfo_t *tinfo, const siginfo_t *info);
-void target_to_host_siginfo(siginfo_t *info, const target_siginfo_t *tinfo);
-int target_to_host_signal(int sig);
-int host_to_target_signal(int sig);
-long do_sigreturn(CPUArchState *env);
-long do_rt_sigreturn(CPUArchState *env);
-abi_long do_sigaltstack(abi_ulong uss_addr, abi_ulong uoss_addr,
- CPUArchState *env);
-int do_sigprocmask(int how, const sigset_t *set, sigset_t *oldset);
-abi_long do_swapcontext(CPUArchState *env, abi_ulong uold_ctx,
- abi_ulong unew_ctx, abi_long ctx_size);
-/**
- * block_signals: block all signals while handling this guest syscall
- *
- * Block all signals, and arrange that the signal mask is returned to
- * its correct value for the guest before we resume execution of guest code.
- * If this function returns non-zero, then the caller should immediately
- * return -TARGET_ERESTARTSYS to the main loop, which will take the pending
- * signal and restart execution of the syscall.
- * If block_signals() returns zero, then the caller can continue with
- * emulation of the system call knowing that no signals can be taken
- * (and therefore that no race conditions will result).
- * This should only be called once, because if it is called a second time
- * it will always return non-zero. (Think of it like a mutex that can't
- * be recursively locked.)
- * Signals will be unblocked again by process_pending_signals().
- *
- * Return value: non-zero if there was a pending signal, zero if not.
- */
-int block_signals(void); /* Returns non zero if signal pending */
-
#ifdef TARGET_I386
/* vm86.c */
void save_v86_state(CPUX86State *env);
diff --git a/linux-user/signal-common.h b/linux-user/signal-common.h
index ea86328b289..58ea23f6ea9 100644
--- a/linux-user/signal-common.h
+++ b/linux-user/signal-common.h
@@ -47,4 +47,40 @@ void setup_frame(int sig, struct target_sigaction *ka,
void setup_rt_frame(int sig, struct target_sigaction *ka,
target_siginfo_t *info,
target_sigset_t *set, CPUArchState *env);
+
+void process_pending_signals(CPUArchState *cpu_env);
+void signal_init(void);
+int queue_signal(CPUArchState *env, int sig, int si_type,
+ target_siginfo_t *info);
+void host_to_target_siginfo(target_siginfo_t *tinfo, const siginfo_t *info);
+void target_to_host_siginfo(siginfo_t *info, const target_siginfo_t *tinfo);
+int target_to_host_signal(int sig);
+int host_to_target_signal(int sig);
+long do_sigreturn(CPUArchState *env);
+long do_rt_sigreturn(CPUArchState *env);
+abi_long do_sigaltstack(abi_ulong uss_addr, abi_ulong uoss_addr,
+ CPUArchState *env);
+int do_sigprocmask(int how, const sigset_t *set, sigset_t *oldset);
+abi_long do_swapcontext(CPUArchState *env, abi_ulong uold_ctx,
+ abi_ulong unew_ctx, abi_long ctx_size);
+/**
+ * block_signals: block all signals while handling this guest syscall
+ *
+ * Block all signals, and arrange that the signal mask is returned to
+ * its correct value for the guest before we resume execution of guest code.
+ * If this function returns non-zero, then the caller should immediately
+ * return -TARGET_ERESTARTSYS to the main loop, which will take the pending
+ * signal and restart execution of the syscall.
+ * If block_signals() returns zero, then the caller can continue with
+ * emulation of the system call knowing that no signals can be taken
+ * (and therefore that no race conditions will result).
+ * This should only be called once, because if it is called a second time
+ * it will always return non-zero. (Think of it like a mutex that can't
+ * be recursively locked.)
+ * Signals will be unblocked again by process_pending_signals().
+ *
+ * Return value: non-zero if there was a pending signal, zero if not.
+ */
+int block_signals(void); /* Returns non zero if signal pending */
+
#endif
diff --git a/linux-user/aarch64/cpu_loop.c b/linux-user/aarch64/cpu_loop.c
index ee72a1c20f0..5cac76f67b0 100644
--- a/linux-user/aarch64/cpu_loop.c
+++ b/linux-user/aarch64/cpu_loop.c
@@ -21,6 +21,7 @@
#include "qemu-common.h"
#include "qemu.h"
#include "cpu_loop-common.h"
+#include "signal-common.h"
#include "qemu/guest-random.h"
#include "semihosting/common-semi.h"
#include "target/arm/syndrome.h"
diff --git a/linux-user/alpha/cpu_loop.c b/linux-user/alpha/cpu_loop.c
index 7ce2461a028..8464047368a 100644
--- a/linux-user/alpha/cpu_loop.c
+++ b/linux-user/alpha/cpu_loop.c
@@ -21,6 +21,7 @@
#include "qemu-common.h"
#include "qemu.h"
#include "cpu_loop-common.h"
+#include "signal-common.h"
void cpu_loop(CPUAlphaState *env)
{
diff --git a/linux-user/arm/cpu_loop.c b/linux-user/arm/cpu_loop.c
index 69632d15be1..5556d381463 100644
--- a/linux-user/arm/cpu_loop.c
+++ b/linux-user/arm/cpu_loop.c
@@ -22,6 +22,7 @@
#include "qemu.h"
#include "elf.h"
#include "cpu_loop-common.h"
+#include "signal-common.h"
#include "semihosting/common-semi.h"
#define get_user_code_u32(x, gaddr, env) \
diff --git a/linux-user/cris/cpu_loop.c b/linux-user/cris/cpu_loop.c
index 334edddd1e2..8c9fc3127ec 100644
--- a/linux-user/cris/cpu_loop.c
+++ b/linux-user/cris/cpu_loop.c
@@ -21,6 +21,7 @@
#include "qemu-common.h"
#include "qemu.h"
#include "cpu_loop-common.h"
+#include "signal-common.h"
void cpu_loop(CPUCRISState *env)
{
diff --git a/linux-user/fd-trans.c b/linux-user/fd-trans.c
index 86b6f484d30..48203c1af9d 100644
--- a/linux-user/fd-trans.c
+++ b/linux-user/fd-trans.c
@@ -28,6 +28,7 @@
#endif
#include "qemu.h"
#include "fd-trans.h"
+#include "signal-common.h"
enum {
QEMU_IFLA_BR_UNSPEC,
diff --git a/linux-user/hexagon/cpu_loop.c b/linux-user/hexagon/cpu_loop.c
index bc34f5d7c30..348d2dc3413 100644
--- a/linux-user/hexagon/cpu_loop.c
+++ b/linux-user/hexagon/cpu_loop.c
@@ -21,6 +21,7 @@
#include "qemu/osdep.h"
#include "qemu.h"
#include "cpu_loop-common.h"
+#include "signal-common.h"
#include "internal.h"
void cpu_loop(CPUHexagonState *env)
diff --git a/linux-user/hppa/cpu_loop.c b/linux-user/hppa/cpu_loop.c
index 82d8183821a..c3661994a57 100644
--- a/linux-user/hppa/cpu_loop.c
+++ b/linux-user/hppa/cpu_loop.c
@@ -20,6 +20,7 @@
#include "qemu/osdep.h"
#include "qemu.h"
#include "cpu_loop-common.h"
+#include "signal-common.h"
static abi_ulong hppa_lws(CPUHPPAState *env)
{
diff --git a/linux-user/i386/cpu_loop.c b/linux-user/i386/cpu_loop.c
index f813e87294a..ee2e139a063 100644
--- a/linux-user/i386/cpu_loop.c
+++ b/linux-user/i386/cpu_loop.c
@@ -21,6 +21,7 @@
#include "qemu-common.h"
#include "qemu.h"
#include "cpu_loop-common.h"
+#include "signal-common.h"
/***********************************************************/
/* CPUX86 core interface */
diff --git a/linux-user/m68k/cpu_loop.c b/linux-user/m68k/cpu_loop.c
index c7a500b58c4..3a330401bf2 100644
--- a/linux-user/m68k/cpu_loop.c
+++ b/linux-user/m68k/cpu_loop.c
@@ -21,6 +21,7 @@
#include "qemu-common.h"
#include "qemu.h"
#include "cpu_loop-common.h"
+#include "signal-common.h"
void cpu_loop(CPUM68KState *env)
{
diff --git a/linux-user/main.c b/linux-user/main.c
index a6094563b6b..4f516707357 100644
--- a/linux-user/main.c
+++ b/linux-user/main.c
@@ -49,6 +49,7 @@
#include "cpu_loop-common.h"
#include "crypto/init.h"
#include "fd-trans.h"
+#include "signal-common.h"
#ifndef AT_FLAGS_PRESERVE_ARGV0
#define AT_FLAGS_PRESERVE_ARGV0_BIT 0
diff --git a/linux-user/microblaze/cpu_loop.c b/linux-user/microblaze/cpu_loop.c
index c3396a6e09b..0d2c8f8dea8 100644
--- a/linux-user/microblaze/cpu_loop.c
+++ b/linux-user/microblaze/cpu_loop.c
@@ -21,6 +21,7 @@
#include "qemu-common.h"
#include "qemu.h"
#include "cpu_loop-common.h"
+#include "signal-common.h"
void cpu_loop(CPUMBState *env)
{
diff --git a/linux-user/mips/cpu_loop.c b/linux-user/mips/cpu_loop.c
index 9d813ece4e7..7dfaa0cb1e1 100644
--- a/linux-user/mips/cpu_loop.c
+++ b/linux-user/mips/cpu_loop.c
@@ -21,6 +21,7 @@
#include "qemu-common.h"
#include "qemu.h"
#include "cpu_loop-common.h"
+#include "signal-common.h"
#include "elf.h"
#include "internal.h"
#include "fpu_helper.h"
diff --git a/linux-user/nios2/cpu_loop.c b/linux-user/nios2/cpu_loop.c
index 9869083fa19..68f95d7ad7b 100644
--- a/linux-user/nios2/cpu_loop.c
+++ b/linux-user/nios2/cpu_loop.c
@@ -20,6 +20,7 @@
#include "qemu/osdep.h"
#include "qemu.h"
#include "cpu_loop-common.h"
+#include "signal-common.h"
void cpu_loop(CPUNios2State *env)
{
diff --git a/linux-user/openrisc/cpu_loop.c b/linux-user/openrisc/cpu_loop.c
index b33fa777187..f6c67859887 100644
--- a/linux-user/openrisc/cpu_loop.c
+++ b/linux-user/openrisc/cpu_loop.c
@@ -21,6 +21,7 @@
#include "qemu-common.h"
#include "qemu.h"
#include "cpu_loop-common.h"
+#include "signal-common.h"
void cpu_loop(CPUOpenRISCState *env)
{
diff --git a/linux-user/ppc/cpu_loop.c b/linux-user/ppc/cpu_loop.c
index fa91ea0eed9..ace431238c2 100644
--- a/linux-user/ppc/cpu_loop.c
+++ b/linux-user/ppc/cpu_loop.c
@@ -21,6 +21,7 @@
#include "qemu-common.h"
#include "qemu.h"
#include "cpu_loop-common.h"
+#include "signal-common.h"
static inline uint64_t cpu_ppc_get_tb(CPUPPCState *env)
{
diff --git a/linux-user/riscv/cpu_loop.c b/linux-user/riscv/cpu_loop.c
index 74a9628dc9b..47978c4e354 100644
--- a/linux-user/riscv/cpu_loop.c
+++ b/linux-user/riscv/cpu_loop.c
@@ -22,6 +22,7 @@
#include "qemu/error-report.h"
#include "qemu.h"
#include "cpu_loop-common.h"
+#include "signal-common.h"
#include "elf.h"
#include "semihosting/common-semi.h"
diff --git a/linux-user/s390x/cpu_loop.c b/linux-user/s390x/cpu_loop.c
index 6a69a6dd260..ae70f630532 100644
--- a/linux-user/s390x/cpu_loop.c
+++ b/linux-user/s390x/cpu_loop.c
@@ -21,6 +21,7 @@
#include "qemu-common.h"
#include "qemu.h"
#include "cpu_loop-common.h"
+#include "signal-common.h"
/* s390x masks the fault address it reports in si_addr for SIGSEGV and SIGBUS */
#define S390X_FAIL_ADDR_MASK -4096LL
diff --git a/linux-user/sh4/cpu_loop.c b/linux-user/sh4/cpu_loop.c
index 222ed1c670c..06e4a4d0075 100644
--- a/linux-user/sh4/cpu_loop.c
+++ b/linux-user/sh4/cpu_loop.c
@@ -21,6 +21,7 @@
#include "qemu-common.h"
#include "qemu.h"
#include "cpu_loop-common.h"
+#include "signal-common.h"
void cpu_loop(CPUSH4State *env)
{
diff --git a/linux-user/sparc/cpu_loop.c b/linux-user/sparc/cpu_loop.c
index 02532f198df..b2c06111943 100644
--- a/linux-user/sparc/cpu_loop.c
+++ b/linux-user/sparc/cpu_loop.c
@@ -21,6 +21,7 @@
#include "qemu-common.h"
#include "qemu.h"
#include "cpu_loop-common.h"
+#include "signal-common.h"
#define SPARC64_STACK_BIAS 2047
diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index 4ac2801e495..ad635ed3a5f 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -128,6 +128,7 @@
#include "qemu.h"
#include "strace.h"
+#include "signal-common.h"
#include "qemu/guest-random.h"
#include "qemu/selfmap.h"
#include "user/syscall-trace.h"
diff --git a/linux-user/xtensa/cpu_loop.c b/linux-user/xtensa/cpu_loop.c
index 64831c91996..bb5335e2b6c 100644
--- a/linux-user/xtensa/cpu_loop.c
+++ b/linux-user/xtensa/cpu_loop.c
@@ -20,6 +20,7 @@
#include "qemu/osdep.h"
#include "qemu.h"
#include "cpu_loop-common.h"
+#include "signal-common.h"
static void xtensa_rfw(CPUXtensaState *env)
{
--
2.20.1
^ permalink raw reply related [flat|nested] 24+ messages in thread
* [PATCH v2 4/9] linux-user: Split loader-related prototypes into loader.h
2021-09-08 15:43 [PATCH v2 0/9] linux-user: split internals out of qemu.h Peter Maydell
` (2 preceding siblings ...)
2021-09-08 15:43 ` [PATCH v2 3/9] linux-user: Split signal-related prototypes into signal-common.h Peter Maydell
@ 2021-09-08 15:44 ` Peter Maydell
2021-09-08 16:00 ` Philippe Mathieu-Daudé
2021-09-12 16:17 ` Richard Henderson
2021-09-08 15:44 ` [PATCH v2 5/9] linux-user: Split mmap prototypes into user-mmap.h Peter Maydell
` (5 subsequent siblings)
9 siblings, 2 replies; 24+ messages in thread
From: Peter Maydell @ 2021-09-08 15:44 UTC (permalink / raw)
To: qemu-devel; +Cc: Riku Voipio, Laurent Vivier
Split guest-binary loader prototypes out into a new header
loader.h which we include only where required.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
linux-user/loader.h | 59 ++++++++++++++++++++++++++++++++++++++++++
linux-user/qemu.h | 40 ----------------------------
linux-user/elfload.c | 1 +
linux-user/flatload.c | 1 +
linux-user/linuxload.c | 1 +
linux-user/main.c | 1 +
linux-user/signal.c | 1 +
linux-user/syscall.c | 1 +
8 files changed, 65 insertions(+), 40 deletions(-)
create mode 100644 linux-user/loader.h
diff --git a/linux-user/loader.h b/linux-user/loader.h
new file mode 100644
index 00000000000..f375ee0679b
--- /dev/null
+++ b/linux-user/loader.h
@@ -0,0 +1,59 @@
+/*
+ * loader.h: prototypes for linux-user guest binary loader
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef LINUX_USER_LOADER_H
+#define LINUX_USER_LOADER_H
+
+/*
+ * Read a good amount of data initially, to hopefully get all the
+ * program headers loaded.
+ */
+#define BPRM_BUF_SIZE 1024
+
+/*
+ * This structure is used to hold the arguments that are
+ * used when loading binaries.
+ */
+struct linux_binprm {
+ char buf[BPRM_BUF_SIZE] __attribute__((aligned));
+ abi_ulong p;
+ int fd;
+ int e_uid, e_gid;
+ int argc, envc;
+ char **argv;
+ char **envp;
+ char *filename; /* Name of binary */
+ int (*core_dump)(int, const CPUArchState *); /* coredump routine */
+};
+
+void do_init_thread(struct target_pt_regs *regs, struct image_info *infop);
+abi_ulong loader_build_argptr(int envc, int argc, abi_ulong sp,
+ abi_ulong stringp, int push_ptr);
+int loader_exec(int fdexec, const char *filename, char **argv, char **envp,
+ struct target_pt_regs *regs, struct image_info *infop,
+ struct linux_binprm *);
+
+uint32_t get_elf_eflags(int fd);
+int load_elf_binary(struct linux_binprm *bprm, struct image_info *info);
+int load_flt_binary(struct linux_binprm *bprm, struct image_info *info);
+
+abi_long memcpy_to_target(abi_ulong dest, const void *src,
+ unsigned long len);
+
+extern unsigned long guest_stack_size;
+
+#endif /* LINUX_USER_LOADER_H */
diff --git a/linux-user/qemu.h b/linux-user/qemu.h
index 76d3f5e7eb9..02c4778c970 100644
--- a/linux-user/qemu.h
+++ b/linux-user/qemu.h
@@ -173,30 +173,6 @@ void stop_all_tasks(void);
extern const char *qemu_uname_release;
extern unsigned long mmap_min_addr;
-/* ??? See if we can avoid exposing so much of the loader internals. */
-
-/*
- * Read a good amount of data initially, to hopefully get all the
- * program headers loaded.
- */
-#define BPRM_BUF_SIZE 1024
-
-/*
- * This structure is used to hold the arguments that are
- * used when loading binaries.
- */
-struct linux_binprm {
- char buf[BPRM_BUF_SIZE] __attribute__((aligned));
- abi_ulong p;
- int fd;
- int e_uid, e_gid;
- int argc, envc;
- char **argv;
- char **envp;
- char *filename; /* Name of binary */
- int (*core_dump)(int, const CPUArchState *); /* coredump routine */
-};
-
typedef struct IOCTLEntry IOCTLEntry;
typedef abi_long do_ioctl_fn(const IOCTLEntry *ie, uint8_t *buf_temp,
@@ -217,13 +193,6 @@ extern IOCTLEntry ioctl_entries[];
#define IOC_W 0x0002
#define IOC_RW (IOC_R | IOC_W)
-void do_init_thread(struct target_pt_regs *regs, struct image_info *infop);
-abi_ulong loader_build_argptr(int envc, int argc, abi_ulong sp,
- abi_ulong stringp, int push_ptr);
-int loader_exec(int fdexec, const char *filename, char **argv, char **envp,
- struct target_pt_regs *regs, struct image_info *infop,
- struct linux_binprm *);
-
/*
* Returns true if the image uses the FDPIC ABI. If this is the case,
* we have to provide some information (loadmap, pt_dynamic_info) such
@@ -232,12 +201,6 @@ int loader_exec(int fdexec, const char *filename, char **argv, char **envp,
*/
int info_is_fdpic(struct image_info *info);
-uint32_t get_elf_eflags(int fd);
-int load_elf_binary(struct linux_binprm *bprm, struct image_info *info);
-int load_flt_binary(struct linux_binprm *bprm, struct image_info *info);
-
-abi_long memcpy_to_target(abi_ulong dest, const void *src,
- unsigned long len);
void target_set_brk(abi_ulong new_brk);
abi_long do_brk(abi_ulong new_brk);
void syscall_init(void);
@@ -440,9 +403,6 @@ abi_ulong mmap_find_vma(abi_ulong, abi_ulong, abi_ulong);
void mmap_fork_start(void);
void mmap_fork_end(int child);
-/* main.c */
-extern unsigned long guest_stack_size;
-
/* user access */
#define VERIFY_READ PAGE_READ
diff --git a/linux-user/elfload.c b/linux-user/elfload.c
index 01e9a833fbb..6244fcd05ce 100644
--- a/linux-user/elfload.c
+++ b/linux-user/elfload.c
@@ -6,6 +6,7 @@
#include <sys/shm.h>
#include "qemu.h"
+#include "loader.h"
#include "disas/disas.h"
#include "qemu/bitops.h"
#include "qemu/path.h"
diff --git a/linux-user/flatload.c b/linux-user/flatload.c
index 3e5594cf894..7484a4a3543 100644
--- a/linux-user/flatload.c
+++ b/linux-user/flatload.c
@@ -36,6 +36,7 @@
#include "qemu/osdep.h"
#include "qemu.h"
+#include "loader.h"
#include "flat.h"
#include "target_flat.h"
diff --git a/linux-user/linuxload.c b/linux-user/linuxload.c
index 9d4eb5e94b9..27be7090d8f 100644
--- a/linux-user/linuxload.c
+++ b/linux-user/linuxload.c
@@ -2,6 +2,7 @@
#include "qemu/osdep.h"
#include "qemu.h"
+#include "loader.h"
#define NGROUPS 32
diff --git a/linux-user/main.c b/linux-user/main.c
index 4f516707357..67c5a87ffad 100644
--- a/linux-user/main.c
+++ b/linux-user/main.c
@@ -50,6 +50,7 @@
#include "crypto/init.h"
#include "fd-trans.h"
#include "signal-common.h"
+#include "loader.h"
#ifndef AT_FLAGS_PRESERVE_ARGV0
#define AT_FLAGS_PRESERVE_ARGV0_BIT 0
diff --git a/linux-user/signal.c b/linux-user/signal.c
index ee1934947ac..0fa15f088b0 100644
--- a/linux-user/signal.c
+++ b/linux-user/signal.c
@@ -23,6 +23,7 @@
#include "qemu.h"
#include "strace.h"
+#include "loader.h"
#include "trace.h"
#include "signal-common.h"
diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index ad635ed3a5f..b1cd7410d8b 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -129,6 +129,7 @@
#include "qemu.h"
#include "strace.h"
#include "signal-common.h"
+#include "loader.h"
#include "qemu/guest-random.h"
#include "qemu/selfmap.h"
#include "user/syscall-trace.h"
--
2.20.1
^ permalink raw reply related [flat|nested] 24+ messages in thread
* [PATCH v2 5/9] linux-user: Split mmap prototypes into user-mmap.h
2021-09-08 15:43 [PATCH v2 0/9] linux-user: split internals out of qemu.h Peter Maydell
` (3 preceding siblings ...)
2021-09-08 15:44 ` [PATCH v2 4/9] linux-user: Split loader-related prototypes into loader.h Peter Maydell
@ 2021-09-08 15:44 ` Peter Maydell
2021-09-08 16:01 ` Philippe Mathieu-Daudé
2021-09-12 16:18 ` Richard Henderson
2021-09-08 15:44 ` [PATCH v2 6/9] linux-user: Split safe-syscall macro into its own header Peter Maydell
` (4 subsequent siblings)
9 siblings, 2 replies; 24+ messages in thread
From: Peter Maydell @ 2021-09-08 15:44 UTC (permalink / raw)
To: qemu-devel; +Cc: Riku Voipio, Laurent Vivier
Split out the mmap prototypes into a new header user-mmap.h
which we only include where required.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
linux-user/qemu.h | 14 --------------
linux-user/user-mmap.h | 34 ++++++++++++++++++++++++++++++++++
linux-user/elfload.c | 1 +
linux-user/flatload.c | 1 +
linux-user/i386/cpu_loop.c | 1 +
linux-user/main.c | 1 +
linux-user/mmap.c | 1 +
linux-user/syscall.c | 1 +
8 files changed, 40 insertions(+), 14 deletions(-)
create mode 100644 linux-user/user-mmap.h
diff --git a/linux-user/qemu.h b/linux-user/qemu.h
index 02c4778c970..0cb79990579 100644
--- a/linux-user/qemu.h
+++ b/linux-user/qemu.h
@@ -389,20 +389,6 @@ void sparc64_set_context(CPUSPARCState *env);
void sparc64_get_context(CPUSPARCState *env);
#endif
-/* mmap.c */
-int target_mprotect(abi_ulong start, abi_ulong len, int prot);
-abi_long target_mmap(abi_ulong start, abi_ulong len, int prot,
- int flags, int fd, abi_ulong offset);
-int target_munmap(abi_ulong start, abi_ulong len);
-abi_long target_mremap(abi_ulong old_addr, abi_ulong old_size,
- abi_ulong new_size, unsigned long flags,
- abi_ulong new_addr);
-extern unsigned long last_brk;
-extern abi_ulong mmap_next_start;
-abi_ulong mmap_find_vma(abi_ulong, abi_ulong, abi_ulong);
-void mmap_fork_start(void);
-void mmap_fork_end(int child);
-
/* user access */
#define VERIFY_READ PAGE_READ
diff --git a/linux-user/user-mmap.h b/linux-user/user-mmap.h
new file mode 100644
index 00000000000..d1dec99c024
--- /dev/null
+++ b/linux-user/user-mmap.h
@@ -0,0 +1,34 @@
+/*
+ * user-mmap.h: prototypes for linux-user guest binary loader
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef LINUX_USER_USER_MMAP_H
+#define LINUX_USER_USER_MMAP_H
+
+int target_mprotect(abi_ulong start, abi_ulong len, int prot);
+abi_long target_mmap(abi_ulong start, abi_ulong len, int prot,
+ int flags, int fd, abi_ulong offset);
+int target_munmap(abi_ulong start, abi_ulong len);
+abi_long target_mremap(abi_ulong old_addr, abi_ulong old_size,
+ abi_ulong new_size, unsigned long flags,
+ abi_ulong new_addr);
+extern unsigned long last_brk;
+extern abi_ulong mmap_next_start;
+abi_ulong mmap_find_vma(abi_ulong, abi_ulong, abi_ulong);
+void mmap_fork_start(void);
+void mmap_fork_end(int child);
+
+#endif /* LINUX_USER_USER_MMAP_H */
diff --git a/linux-user/elfload.c b/linux-user/elfload.c
index 6244fcd05ce..c291f3cee09 100644
--- a/linux-user/elfload.c
+++ b/linux-user/elfload.c
@@ -7,6 +7,7 @@
#include "qemu.h"
#include "loader.h"
+#include "user-mmap.h"
#include "disas/disas.h"
#include "qemu/bitops.h"
#include "qemu/path.h"
diff --git a/linux-user/flatload.c b/linux-user/flatload.c
index 7484a4a3543..99550061db8 100644
--- a/linux-user/flatload.c
+++ b/linux-user/flatload.c
@@ -37,6 +37,7 @@
#include "qemu.h"
#include "loader.h"
+#include "user-mmap.h"
#include "flat.h"
#include "target_flat.h"
diff --git a/linux-user/i386/cpu_loop.c b/linux-user/i386/cpu_loop.c
index ee2e139a063..fcc410a426a 100644
--- a/linux-user/i386/cpu_loop.c
+++ b/linux-user/i386/cpu_loop.c
@@ -22,6 +22,7 @@
#include "qemu.h"
#include "cpu_loop-common.h"
#include "signal-common.h"
+#include "user-mmap.h"
/***********************************************************/
/* CPUX86 core interface */
diff --git a/linux-user/main.c b/linux-user/main.c
index 67c5a87ffad..a76aec73368 100644
--- a/linux-user/main.c
+++ b/linux-user/main.c
@@ -51,6 +51,7 @@
#include "fd-trans.h"
#include "signal-common.h"
#include "loader.h"
+#include "user-mmap.h"
#ifndef AT_FLAGS_PRESERVE_ARGV0
#define AT_FLAGS_PRESERVE_ARGV0_BIT 0
diff --git a/linux-user/mmap.c b/linux-user/mmap.c
index 0e103859fed..4b182444bbd 100644
--- a/linux-user/mmap.c
+++ b/linux-user/mmap.c
@@ -20,6 +20,7 @@
#include "trace.h"
#include "exec/log.h"
#include "qemu.h"
+#include "user-mmap.h"
static pthread_mutex_t mmap_mutex = PTHREAD_MUTEX_INITIALIZER;
static __thread int mmap_lock_count;
diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index b1cd7410d8b..b6c8406e1dc 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -130,6 +130,7 @@
#include "strace.h"
#include "signal-common.h"
#include "loader.h"
+#include "user-mmap.h"
#include "qemu/guest-random.h"
#include "qemu/selfmap.h"
#include "user/syscall-trace.h"
--
2.20.1
^ permalink raw reply related [flat|nested] 24+ messages in thread
* [PATCH v2 6/9] linux-user: Split safe-syscall macro into its own header
2021-09-08 15:43 [PATCH v2 0/9] linux-user: split internals out of qemu.h Peter Maydell
` (4 preceding siblings ...)
2021-09-08 15:44 ` [PATCH v2 5/9] linux-user: Split mmap prototypes into user-mmap.h Peter Maydell
@ 2021-09-08 15:44 ` Peter Maydell
2021-09-12 16:23 ` Richard Henderson
2021-09-08 15:44 ` [PATCH v2 7/9] linux-user: Split linux-user internals out of qemu.h Peter Maydell
` (3 subsequent siblings)
9 siblings, 1 reply; 24+ messages in thread
From: Peter Maydell @ 2021-09-08 15:44 UTC (permalink / raw)
To: qemu-devel; +Cc: Riku Voipio, Laurent Vivier
Split the safe-syscall macro from qemu.h into a new safe-syscall.h.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
---
linux-user/qemu.h | 135 ---------------------------------
linux-user/safe-syscall.h | 154 ++++++++++++++++++++++++++++++++++++++
linux-user/syscall.c | 1 +
3 files changed, 155 insertions(+), 135 deletions(-)
create mode 100644 linux-user/safe-syscall.h
diff --git a/linux-user/qemu.h b/linux-user/qemu.h
index 0cb79990579..a82a46236e6 100644
--- a/linux-user/qemu.h
+++ b/linux-user/qemu.h
@@ -240,141 +240,6 @@ void probe_guest_base(const char *image_name,
#include "qemu/log.h"
-/* safe_syscall.S */
-
-/**
- * safe_syscall:
- * @int number: number of system call to make
- * ...: arguments to the system call
- *
- * Call a system call if guest signal not pending.
- * This has the same API as the libc syscall() function, except that it
- * may return -1 with errno == TARGET_ERESTARTSYS if a signal was pending.
- *
- * Returns: the system call result, or -1 with an error code in errno
- * (Errnos are host errnos; we rely on TARGET_ERESTARTSYS not clashing
- * with any of the host errno values.)
- */
-
-/*
- * A guide to using safe_syscall() to handle interactions between guest
- * syscalls and guest signals:
- *
- * Guest syscalls come in two flavours:
- *
- * (1) Non-interruptible syscalls
- *
- * These are guest syscalls that never get interrupted by signals and
- * so never return EINTR. They can be implemented straightforwardly in
- * QEMU: just make sure that if the implementation code has to make any
- * blocking calls that those calls are retried if they return EINTR.
- * It's also OK to implement these with safe_syscall, though it will be
- * a little less efficient if a signal is delivered at the 'wrong' moment.
- *
- * Some non-interruptible syscalls need to be handled using block_signals()
- * to block signals for the duration of the syscall. This mainly applies
- * to code which needs to modify the data structures used by the
- * host_signal_handler() function and the functions it calls, including
- * all syscalls which change the thread's signal mask.
- *
- * (2) Interruptible syscalls
- *
- * These are guest syscalls that can be interrupted by signals and
- * for which we need to either return EINTR or arrange for the guest
- * syscall to be restarted. This category includes both syscalls which
- * always restart (and in the kernel return -ERESTARTNOINTR), ones
- * which only restart if there is no handler (kernel returns -ERESTARTNOHAND
- * or -ERESTART_RESTARTBLOCK), and the most common kind which restart
- * if the handler was registered with SA_RESTART (kernel returns
- * -ERESTARTSYS). System calls which are only interruptible in some
- * situations (like 'open') also need to be handled this way.
- *
- * Here it is important that the host syscall is made
- * via this safe_syscall() function, and *not* via the host libc.
- * If the host libc is used then the implementation will appear to work
- * most of the time, but there will be a race condition where a
- * signal could arrive just before we make the host syscall inside libc,
- * and then then guest syscall will not correctly be interrupted.
- * Instead the implementation of the guest syscall can use the safe_syscall
- * function but otherwise just return the result or errno in the usual
- * way; the main loop code will take care of restarting the syscall
- * if appropriate.
- *
- * (If the implementation needs to make multiple host syscalls this is
- * OK; any which might really block must be via safe_syscall(); for those
- * which are only technically blocking (ie which we know in practice won't
- * stay in the host kernel indefinitely) it's OK to use libc if necessary.
- * You must be able to cope with backing out correctly if some safe_syscall
- * you make in the implementation returns either -TARGET_ERESTARTSYS or
- * EINTR though.)
- *
- * block_signals() cannot be used for interruptible syscalls.
- *
- *
- * How and why the safe_syscall implementation works:
- *
- * The basic setup is that we make the host syscall via a known
- * section of host native assembly. If a signal occurs, our signal
- * handler checks the interrupted host PC against the addresse of that
- * known section. If the PC is before or at the address of the syscall
- * instruction then we change the PC to point at a "return
- * -TARGET_ERESTARTSYS" code path instead, and then exit the signal handler
- * (causing the safe_syscall() call to immediately return that value).
- * Then in the main.c loop if we see this magic return value we adjust
- * the guest PC to wind it back to before the system call, and invoke
- * the guest signal handler as usual.
- *
- * This winding-back will happen in two cases:
- * (1) signal came in just before we took the host syscall (a race);
- * in this case we'll take the guest signal and have another go
- * at the syscall afterwards, and this is indistinguishable for the
- * guest from the timing having been different such that the guest
- * signal really did win the race
- * (2) signal came in while the host syscall was blocking, and the
- * host kernel decided the syscall should be restarted;
- * in this case we want to restart the guest syscall also, and so
- * rewinding is the right thing. (Note that "restart" semantics mean
- * "first call the signal handler, then reattempt the syscall".)
- * The other situation to consider is when a signal came in while the
- * host syscall was blocking, and the host kernel decided that the syscall
- * should not be restarted; in this case QEMU's host signal handler will
- * be invoked with the PC pointing just after the syscall instruction,
- * with registers indicating an EINTR return; the special code in the
- * handler will not kick in, and we will return EINTR to the guest as
- * we should.
- *
- * Notice that we can leave the host kernel to make the decision for
- * us about whether to do a restart of the syscall or not; we do not
- * need to check SA_RESTART flags in QEMU or distinguish the various
- * kinds of restartability.
- */
-#ifdef HAVE_SAFE_SYSCALL
-/* The core part of this function is implemented in assembly */
-extern long safe_syscall_base(int *pending, long number, ...);
-
-#define safe_syscall(...) \
- ({ \
- long ret_; \
- int *psp_ = &((TaskState *)thread_cpu->opaque)->signal_pending; \
- ret_ = safe_syscall_base(psp_, __VA_ARGS__); \
- if (is_error(ret_)) { \
- errno = -ret_; \
- ret_ = -1; \
- } \
- ret_; \
- })
-
-#else
-
-/*
- * Fallback for architectures which don't yet provide a safe-syscall assembly
- * fragment; note that this is racy!
- * This should go away when all host architectures have been updated.
- */
-#define safe_syscall syscall
-
-#endif
-
/* syscall.c */
int host_to_target_waitstatus(int status);
diff --git a/linux-user/safe-syscall.h b/linux-user/safe-syscall.h
new file mode 100644
index 00000000000..6bc03902628
--- /dev/null
+++ b/linux-user/safe-syscall.h
@@ -0,0 +1,154 @@
+/*
+ * safe-syscall.h: prototypes for linux-user signal-race-safe syscalls
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef LINUX_USER_SAFE_SYSCALL_H
+#define LINUX_USER_SAFE_SYSCALL_H
+
+/**
+ * safe_syscall:
+ * @int number: number of system call to make
+ * ...: arguments to the system call
+ *
+ * Call a system call if guest signal not pending.
+ * This has the same API as the libc syscall() function, except that it
+ * may return -1 with errno == TARGET_ERESTARTSYS if a signal was pending.
+ *
+ * Returns: the system call result, or -1 with an error code in errno
+ * (Errnos are host errnos; we rely on TARGET_ERESTARTSYS not clashing
+ * with any of the host errno values.)
+ */
+
+/*
+ * A guide to using safe_syscall() to handle interactions between guest
+ * syscalls and guest signals:
+ *
+ * Guest syscalls come in two flavours:
+ *
+ * (1) Non-interruptible syscalls
+ *
+ * These are guest syscalls that never get interrupted by signals and
+ * so never return EINTR. They can be implemented straightforwardly in
+ * QEMU: just make sure that if the implementation code has to make any
+ * blocking calls that those calls are retried if they return EINTR.
+ * It's also OK to implement these with safe_syscall, though it will be
+ * a little less efficient if a signal is delivered at the 'wrong' moment.
+ *
+ * Some non-interruptible syscalls need to be handled using block_signals()
+ * to block signals for the duration of the syscall. This mainly applies
+ * to code which needs to modify the data structures used by the
+ * host_signal_handler() function and the functions it calls, including
+ * all syscalls which change the thread's signal mask.
+ *
+ * (2) Interruptible syscalls
+ *
+ * These are guest syscalls that can be interrupted by signals and
+ * for which we need to either return EINTR or arrange for the guest
+ * syscall to be restarted. This category includes both syscalls which
+ * always restart (and in the kernel return -ERESTARTNOINTR), ones
+ * which only restart if there is no handler (kernel returns -ERESTARTNOHAND
+ * or -ERESTART_RESTARTBLOCK), and the most common kind which restart
+ * if the handler was registered with SA_RESTART (kernel returns
+ * -ERESTARTSYS). System calls which are only interruptible in some
+ * situations (like 'open') also need to be handled this way.
+ *
+ * Here it is important that the host syscall is made
+ * via this safe_syscall() function, and *not* via the host libc.
+ * If the host libc is used then the implementation will appear to work
+ * most of the time, but there will be a race condition where a
+ * signal could arrive just before we make the host syscall inside libc,
+ * and then then guest syscall will not correctly be interrupted.
+ * Instead the implementation of the guest syscall can use the safe_syscall
+ * function but otherwise just return the result or errno in the usual
+ * way; the main loop code will take care of restarting the syscall
+ * if appropriate.
+ *
+ * (If the implementation needs to make multiple host syscalls this is
+ * OK; any which might really block must be via safe_syscall(); for those
+ * which are only technically blocking (ie which we know in practice won't
+ * stay in the host kernel indefinitely) it's OK to use libc if necessary.
+ * You must be able to cope with backing out correctly if some safe_syscall
+ * you make in the implementation returns either -TARGET_ERESTARTSYS or
+ * EINTR though.)
+ *
+ * block_signals() cannot be used for interruptible syscalls.
+ *
+ *
+ * How and why the safe_syscall implementation works:
+ *
+ * The basic setup is that we make the host syscall via a known
+ * section of host native assembly. If a signal occurs, our signal
+ * handler checks the interrupted host PC against the addresse of that
+ * known section. If the PC is before or at the address of the syscall
+ * instruction then we change the PC to point at a "return
+ * -TARGET_ERESTARTSYS" code path instead, and then exit the signal handler
+ * (causing the safe_syscall() call to immediately return that value).
+ * Then in the main.c loop if we see this magic return value we adjust
+ * the guest PC to wind it back to before the system call, and invoke
+ * the guest signal handler as usual.
+ *
+ * This winding-back will happen in two cases:
+ * (1) signal came in just before we took the host syscall (a race);
+ * in this case we'll take the guest signal and have another go
+ * at the syscall afterwards, and this is indistinguishable for the
+ * guest from the timing having been different such that the guest
+ * signal really did win the race
+ * (2) signal came in while the host syscall was blocking, and the
+ * host kernel decided the syscall should be restarted;
+ * in this case we want to restart the guest syscall also, and so
+ * rewinding is the right thing. (Note that "restart" semantics mean
+ * "first call the signal handler, then reattempt the syscall".)
+ * The other situation to consider is when a signal came in while the
+ * host syscall was blocking, and the host kernel decided that the syscall
+ * should not be restarted; in this case QEMU's host signal handler will
+ * be invoked with the PC pointing just after the syscall instruction,
+ * with registers indicating an EINTR return; the special code in the
+ * handler will not kick in, and we will return EINTR to the guest as
+ * we should.
+ *
+ * Notice that we can leave the host kernel to make the decision for
+ * us about whether to do a restart of the syscall or not; we do not
+ * need to check SA_RESTART flags in QEMU or distinguish the various
+ * kinds of restartability.
+ */
+#ifdef HAVE_SAFE_SYSCALL
+/* The core part of this function is implemented in assembly */
+extern long safe_syscall_base(int *pending, long number, ...);
+
+#define safe_syscall(...) \
+ ({ \
+ long ret_; \
+ int *psp_ = &((TaskState *)thread_cpu->opaque)->signal_pending; \
+ ret_ = safe_syscall_base(psp_, __VA_ARGS__); \
+ if (is_error(ret_)) { \
+ errno = -ret_; \
+ ret_ = -1; \
+ } \
+ ret_; \
+ })
+
+#else
+
+/*
+ * Fallback for architectures which don't yet provide a safe-syscall assembly
+ * fragment; note that this is racy!
+ * This should go away when all host architectures have been updated.
+ */
+#define safe_syscall syscall
+
+#endif
+
+#endif
diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index b6c8406e1dc..9873830b465 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -131,6 +131,7 @@
#include "signal-common.h"
#include "loader.h"
#include "user-mmap.h"
+#include "safe-syscall.h"
#include "qemu/guest-random.h"
#include "qemu/selfmap.h"
#include "user/syscall-trace.h"
--
2.20.1
^ permalink raw reply related [flat|nested] 24+ messages in thread
* [PATCH v2 7/9] linux-user: Split linux-user internals out of qemu.h
2021-09-08 15:43 [PATCH v2 0/9] linux-user: split internals out of qemu.h Peter Maydell
` (5 preceding siblings ...)
2021-09-08 15:44 ` [PATCH v2 6/9] linux-user: Split safe-syscall macro into its own header Peter Maydell
@ 2021-09-08 15:44 ` Peter Maydell
2021-09-12 16:28 ` Richard Henderson
2021-09-08 15:44 ` [PATCH v2 8/9] linux-user: Don't include gdbstub.h in qemu.h Peter Maydell
` (2 subsequent siblings)
9 siblings, 1 reply; 24+ messages in thread
From: Peter Maydell @ 2021-09-08 15:44 UTC (permalink / raw)
To: qemu-devel; +Cc: Riku Voipio, Laurent Vivier
qemu.h is included in various non-linux-user files (which
mostly want the TaskState struct and the functions for
doing usermode access to guest addresses like lock_user(),
unlock_user(), get_user*(), etc).
Split out the parts that are only used in linux-user itself
into a new user-internals.h. This leaves qemu.h with basically
three things:
* the definition of the TaskState struct
* the user-access functions and macros
* do_brk()
all of which are needed by code outside linux-user that
includes qemu.h.
The addition of all the extra #include lines was done with
sed -i '/include.*qemu\.h/a #include "user-internals.h"' $(git grep -l 'include.*qemu\.h' linux-user)
(and then undoing the change to fpa11.h).
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
linux-user/qemu.h | 164 +--------------------------
linux-user/user-internals.h | 184 +++++++++++++++++++++++++++++++
linux-user/aarch64/cpu_loop.c | 1 +
linux-user/aarch64/signal.c | 1 +
linux-user/alpha/cpu_loop.c | 1 +
linux-user/alpha/signal.c | 1 +
linux-user/arm/cpu_loop.c | 1 +
linux-user/arm/signal.c | 1 +
linux-user/cris/cpu_loop.c | 1 +
linux-user/cris/signal.c | 1 +
linux-user/elfload.c | 1 +
linux-user/exit.c | 1 +
linux-user/fd-trans.c | 1 +
linux-user/flatload.c | 1 +
linux-user/hexagon/cpu_loop.c | 1 +
linux-user/hexagon/signal.c | 1 +
linux-user/hppa/cpu_loop.c | 1 +
linux-user/hppa/signal.c | 1 +
linux-user/i386/cpu_loop.c | 1 +
linux-user/i386/signal.c | 1 +
linux-user/linuxload.c | 1 +
linux-user/m68k/cpu_loop.c | 1 +
linux-user/m68k/signal.c | 1 +
linux-user/main.c | 1 +
linux-user/microblaze/cpu_loop.c | 1 +
linux-user/microblaze/signal.c | 1 +
linux-user/mips/cpu_loop.c | 1 +
linux-user/mips/signal.c | 1 +
linux-user/mmap.c | 1 +
linux-user/nios2/cpu_loop.c | 1 +
linux-user/nios2/signal.c | 1 +
linux-user/openrisc/cpu_loop.c | 1 +
linux-user/openrisc/signal.c | 1 +
linux-user/ppc/cpu_loop.c | 1 +
linux-user/ppc/signal.c | 1 +
linux-user/riscv/cpu_loop.c | 1 +
linux-user/riscv/signal.c | 1 +
linux-user/s390x/cpu_loop.c | 1 +
linux-user/s390x/signal.c | 1 +
linux-user/semihost.c | 1 +
linux-user/sh4/cpu_loop.c | 1 +
linux-user/sh4/signal.c | 1 +
linux-user/signal.c | 1 +
linux-user/sparc/cpu_loop.c | 1 +
linux-user/sparc/signal.c | 1 +
linux-user/strace.c | 1 +
linux-user/syscall.c | 1 +
linux-user/uaccess.c | 1 +
linux-user/uname.c | 1 +
linux-user/vm86.c | 1 +
linux-user/xtensa/cpu_loop.c | 1 +
linux-user/xtensa/signal.c | 1 +
52 files changed, 235 insertions(+), 163 deletions(-)
create mode 100644 linux-user/user-internals.h
diff --git a/linux-user/qemu.h b/linux-user/qemu.h
index a82a46236e6..92290a55c0d 100644
--- a/linux-user/qemu.h
+++ b/linux-user/qemu.h
@@ -1,7 +1,6 @@
#ifndef QEMU_H
#define QEMU_H
-#include "hostdep.h"
#include "cpu.h"
#include "exec/exec-all.h"
#include "exec/cpu_ldst.h"
@@ -10,7 +9,6 @@
#include "exec/user/abitypes.h"
-#include "exec/user/thunk.h"
#include "syscall_defs.h"
#include "target_syscall.h"
#include "exec/gdbstub.h"
@@ -166,93 +164,9 @@ typedef struct TaskState {
struct target_sigaltstack sigaltstack_used;
} __attribute__((aligned(16))) TaskState;
-extern char *exec_path;
-void init_task_state(TaskState *ts);
-void task_settid(TaskState *);
-void stop_all_tasks(void);
-extern const char *qemu_uname_release;
-extern unsigned long mmap_min_addr;
-
-typedef struct IOCTLEntry IOCTLEntry;
-
-typedef abi_long do_ioctl_fn(const IOCTLEntry *ie, uint8_t *buf_temp,
- int fd, int cmd, abi_long arg);
-
-struct IOCTLEntry {
- int target_cmd;
- unsigned int host_cmd;
- const char *name;
- int access;
- do_ioctl_fn *do_ioctl;
- const argtype arg_type[5];
-};
-
-extern IOCTLEntry ioctl_entries[];
-
-#define IOC_R 0x0001
-#define IOC_W 0x0002
-#define IOC_RW (IOC_R | IOC_W)
-
-/*
- * Returns true if the image uses the FDPIC ABI. If this is the case,
- * we have to provide some information (loadmap, pt_dynamic_info) such
- * that the program can be relocated adequately. This is also useful
- * when handling signals.
- */
-int info_is_fdpic(struct image_info *info);
-
-void target_set_brk(abi_ulong new_brk);
-abi_long do_brk(abi_ulong new_brk);
-void syscall_init(void);
-abi_long do_syscall(void *cpu_env, int num, abi_long arg1,
- abi_long arg2, abi_long arg3, abi_long arg4,
- abi_long arg5, abi_long arg6, abi_long arg7,
- abi_long arg8);
-extern __thread CPUState *thread_cpu;
-void cpu_loop(CPUArchState *env);
-const char *target_strerror(int err);
-int get_osversion(void);
-void init_qemu_uname_release(void);
-void fork_start(void);
-void fork_end(int child);
-
-/**
- * probe_guest_base:
- * @image_name: the executable being loaded
- * @loaddr: the lowest fixed address in the executable
- * @hiaddr: the highest fixed address in the executable
- *
- * Creates the initial guest address space in the host memory space.
- *
- * If @loaddr == 0, then no address in the executable is fixed,
- * i.e. it is fully relocatable. In that case @hiaddr is the size
- * of the executable.
- *
- * This function will not return if a valid value for guest_base
- * cannot be chosen. On return, the executable loader can expect
- *
- * target_mmap(loaddr, hiaddr - loaddr, ...)
- *
- * to succeed.
- */
-void probe_guest_base(const char *image_name,
- abi_ulong loaddr, abi_ulong hiaddr);
-
#include "qemu/log.h"
-/* syscall.c */
-int host_to_target_waitstatus(int status);
-
-#ifdef TARGET_I386
-/* vm86.c */
-void save_v86_state(CPUX86State *env);
-void handle_vm86_trap(CPUX86State *env, int trapno);
-void handle_vm86_fault(CPUX86State *env);
-int do_vm86(CPUX86State *env, long subfunction, abi_ulong v86_addr);
-#elif defined(TARGET_SPARC64)
-void sparc64_set_context(CPUSPARCState *env);
-void sparc64_get_context(CPUSPARCState *env);
-#endif
+abi_long do_brk(abi_ulong new_brk);
/* user access */
@@ -437,80 +351,4 @@ void *lock_user_string(abi_ulong guest_addr);
unlock_user(host_ptr, guest_addr, (copy) ? sizeof(*host_ptr) : 0)
#include <pthread.h>
-
-static inline int is_error(abi_long ret)
-{
- return (abi_ulong)ret >= (abi_ulong)(-4096);
-}
-
-#if TARGET_ABI_BITS == 32
-static inline uint64_t target_offset64(uint32_t word0, uint32_t word1)
-{
-#ifdef TARGET_WORDS_BIGENDIAN
- return ((uint64_t)word0 << 32) | word1;
-#else
- return ((uint64_t)word1 << 32) | word0;
-#endif
-}
-#else /* TARGET_ABI_BITS == 32 */
-static inline uint64_t target_offset64(uint64_t word0, uint64_t word1)
-{
- return word0;
-}
-#endif /* TARGET_ABI_BITS != 32 */
-
-void print_termios(void *arg);
-
-/* ARM EABI and MIPS expect 64bit types aligned even on pairs or registers */
-#ifdef TARGET_ARM
-static inline int regpairs_aligned(void *cpu_env, int num)
-{
- return ((((CPUARMState *)cpu_env)->eabi) == 1) ;
-}
-#elif defined(TARGET_MIPS) && (TARGET_ABI_BITS == 32)
-static inline int regpairs_aligned(void *cpu_env, int num) { return 1; }
-#elif defined(TARGET_PPC) && !defined(TARGET_PPC64)
-/*
- * SysV AVI for PPC32 expects 64bit parameters to be passed on odd/even pairs
- * of registers which translates to the same as ARM/MIPS, because we start with
- * r3 as arg1
- */
-static inline int regpairs_aligned(void *cpu_env, int num) { return 1; }
-#elif defined(TARGET_SH4)
-/* SH4 doesn't align register pairs, except for p{read,write}64 */
-static inline int regpairs_aligned(void *cpu_env, int num)
-{
- switch (num) {
- case TARGET_NR_pread64:
- case TARGET_NR_pwrite64:
- return 1;
-
- default:
- return 0;
- }
-}
-#elif defined(TARGET_XTENSA)
-static inline int regpairs_aligned(void *cpu_env, int num) { return 1; }
-#elif defined(TARGET_HEXAGON)
-static inline int regpairs_aligned(void *cpu_env, int num) { return 1; }
-#else
-static inline int regpairs_aligned(void *cpu_env, int num) { return 0; }
-#endif
-
-/**
- * preexit_cleanup: housekeeping before the guest exits
- *
- * env: the CPU state
- * code: the exit code
- */
-void preexit_cleanup(CPUArchState *env, int code);
-
-/*
- * Include target-specific struct and function definitions;
- * they may need access to the target-independent structures
- * above, so include them last.
- */
-#include "target_cpu.h"
-#include "target_structs.h"
-
#endif /* QEMU_H */
diff --git a/linux-user/user-internals.h b/linux-user/user-internals.h
new file mode 100644
index 00000000000..1729a8b62e1
--- /dev/null
+++ b/linux-user/user-internals.h
@@ -0,0 +1,184 @@
+/*
+ * user-internals.h: prototypes etc internal to the linux-user implementation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef LINUX_USER_USER_INTERNALS_H
+#define LINUX_USER_USER_INTERNALS_H
+
+#include "hostdep.h"
+#include "exec/user/thunk.h"
+
+extern char *exec_path;
+void init_task_state(TaskState *ts);
+void task_settid(TaskState *);
+void stop_all_tasks(void);
+extern const char *qemu_uname_release;
+extern unsigned long mmap_min_addr;
+
+typedef struct IOCTLEntry IOCTLEntry;
+
+typedef abi_long do_ioctl_fn(const IOCTLEntry *ie, uint8_t *buf_temp,
+ int fd, int cmd, abi_long arg);
+
+struct IOCTLEntry {
+ int target_cmd;
+ unsigned int host_cmd;
+ const char *name;
+ int access;
+ do_ioctl_fn *do_ioctl;
+ const argtype arg_type[5];
+};
+
+extern IOCTLEntry ioctl_entries[];
+
+#define IOC_R 0x0001
+#define IOC_W 0x0002
+#define IOC_RW (IOC_R | IOC_W)
+
+/*
+ * Returns true if the image uses the FDPIC ABI. If this is the case,
+ * we have to provide some information (loadmap, pt_dynamic_info) such
+ * that the program can be relocated adequately. This is also useful
+ * when handling signals.
+ */
+int info_is_fdpic(struct image_info *info);
+
+void target_set_brk(abi_ulong new_brk);
+void syscall_init(void);
+abi_long do_syscall(void *cpu_env, int num, abi_long arg1,
+ abi_long arg2, abi_long arg3, abi_long arg4,
+ abi_long arg5, abi_long arg6, abi_long arg7,
+ abi_long arg8);
+extern __thread CPUState *thread_cpu;
+void cpu_loop(CPUArchState *env);
+const char *target_strerror(int err);
+int get_osversion(void);
+void init_qemu_uname_release(void);
+void fork_start(void);
+void fork_end(int child);
+
+/**
+ * probe_guest_base:
+ * @image_name: the executable being loaded
+ * @loaddr: the lowest fixed address in the executable
+ * @hiaddr: the highest fixed address in the executable
+ *
+ * Creates the initial guest address space in the host memory space.
+ *
+ * If @loaddr == 0, then no address in the executable is fixed,
+ * i.e. it is fully relocatable. In that case @hiaddr is the size
+ * of the executable.
+ *
+ * This function will not return if a valid value for guest_base
+ * cannot be chosen. On return, the executable loader can expect
+ *
+ * target_mmap(loaddr, hiaddr - loaddr, ...)
+ *
+ * to succeed.
+ */
+void probe_guest_base(const char *image_name,
+ abi_ulong loaddr, abi_ulong hiaddr);
+
+/* syscall.c */
+int host_to_target_waitstatus(int status);
+
+#ifdef TARGET_I386
+/* vm86.c */
+void save_v86_state(CPUX86State *env);
+void handle_vm86_trap(CPUX86State *env, int trapno);
+void handle_vm86_fault(CPUX86State *env);
+int do_vm86(CPUX86State *env, long subfunction, abi_ulong v86_addr);
+#elif defined(TARGET_SPARC64)
+void sparc64_set_context(CPUSPARCState *env);
+void sparc64_get_context(CPUSPARCState *env);
+#endif
+
+static inline int is_error(abi_long ret)
+{
+ return (abi_ulong)ret >= (abi_ulong)(-4096);
+}
+
+#if TARGET_ABI_BITS == 32
+static inline uint64_t target_offset64(uint32_t word0, uint32_t word1)
+{
+#ifdef TARGET_WORDS_BIGENDIAN
+ return ((uint64_t)word0 << 32) | word1;
+#else
+ return ((uint64_t)word1 << 32) | word0;
+#endif
+}
+#else /* TARGET_ABI_BITS == 32 */
+static inline uint64_t target_offset64(uint64_t word0, uint64_t word1)
+{
+ return word0;
+}
+#endif /* TARGET_ABI_BITS != 32 */
+
+void print_termios(void *arg);
+
+/* ARM EABI and MIPS expect 64bit types aligned even on pairs or registers */
+#ifdef TARGET_ARM
+static inline int regpairs_aligned(void *cpu_env, int num)
+{
+ return ((((CPUARMState *)cpu_env)->eabi) == 1) ;
+}
+#elif defined(TARGET_MIPS) && (TARGET_ABI_BITS == 32)
+static inline int regpairs_aligned(void *cpu_env, int num) { return 1; }
+#elif defined(TARGET_PPC) && !defined(TARGET_PPC64)
+/*
+ * SysV AVI for PPC32 expects 64bit parameters to be passed on odd/even pairs
+ * of registers which translates to the same as ARM/MIPS, because we start with
+ * r3 as arg1
+ */
+static inline int regpairs_aligned(void *cpu_env, int num) { return 1; }
+#elif defined(TARGET_SH4)
+/* SH4 doesn't align register pairs, except for p{read,write}64 */
+static inline int regpairs_aligned(void *cpu_env, int num)
+{
+ switch (num) {
+ case TARGET_NR_pread64:
+ case TARGET_NR_pwrite64:
+ return 1;
+
+ default:
+ return 0;
+ }
+}
+#elif defined(TARGET_XTENSA)
+static inline int regpairs_aligned(void *cpu_env, int num) { return 1; }
+#elif defined(TARGET_HEXAGON)
+static inline int regpairs_aligned(void *cpu_env, int num) { return 1; }
+#else
+static inline int regpairs_aligned(void *cpu_env, int num) { return 0; }
+#endif
+
+/**
+ * preexit_cleanup: housekeeping before the guest exits
+ *
+ * env: the CPU state
+ * code: the exit code
+ */
+void preexit_cleanup(CPUArchState *env, int code);
+
+/*
+ * Include target-specific struct and function definitions;
+ * they may need access to the target-independent structures
+ * above, so include them last.
+ */
+#include "target_cpu.h"
+#include "target_structs.h"
+
+#endif
diff --git a/linux-user/aarch64/cpu_loop.c b/linux-user/aarch64/cpu_loop.c
index 5cac76f67b0..5425b85659a 100644
--- a/linux-user/aarch64/cpu_loop.c
+++ b/linux-user/aarch64/cpu_loop.c
@@ -20,6 +20,7 @@
#include "qemu/osdep.h"
#include "qemu-common.h"
#include "qemu.h"
+#include "user-internals.h"
#include "cpu_loop-common.h"
#include "signal-common.h"
#include "qemu/guest-random.h"
diff --git a/linux-user/aarch64/signal.c b/linux-user/aarch64/signal.c
index 662bcd1c4e5..49025648cb4 100644
--- a/linux-user/aarch64/signal.c
+++ b/linux-user/aarch64/signal.c
@@ -18,6 +18,7 @@
*/
#include "qemu/osdep.h"
#include "qemu.h"
+#include "user-internals.h"
#include "signal-common.h"
#include "linux-user/trace.h"
diff --git a/linux-user/alpha/cpu_loop.c b/linux-user/alpha/cpu_loop.c
index 8464047368a..1b00a81385b 100644
--- a/linux-user/alpha/cpu_loop.c
+++ b/linux-user/alpha/cpu_loop.c
@@ -20,6 +20,7 @@
#include "qemu/osdep.h"
#include "qemu-common.h"
#include "qemu.h"
+#include "user-internals.h"
#include "cpu_loop-common.h"
#include "signal-common.h"
diff --git a/linux-user/alpha/signal.c b/linux-user/alpha/signal.c
index 1129ffeea1d..3a820f616b3 100644
--- a/linux-user/alpha/signal.c
+++ b/linux-user/alpha/signal.c
@@ -18,6 +18,7 @@
*/
#include "qemu/osdep.h"
#include "qemu.h"
+#include "user-internals.h"
#include "signal-common.h"
#include "linux-user/trace.h"
diff --git a/linux-user/arm/cpu_loop.c b/linux-user/arm/cpu_loop.c
index 5556d381463..07032b30061 100644
--- a/linux-user/arm/cpu_loop.c
+++ b/linux-user/arm/cpu_loop.c
@@ -20,6 +20,7 @@
#include "qemu/osdep.h"
#include "qemu-common.h"
#include "qemu.h"
+#include "user-internals.h"
#include "elf.h"
#include "cpu_loop-common.h"
#include "signal-common.h"
diff --git a/linux-user/arm/signal.c b/linux-user/arm/signal.c
index 1dfcfd2d57b..ed144f9455d 100644
--- a/linux-user/arm/signal.c
+++ b/linux-user/arm/signal.c
@@ -18,6 +18,7 @@
*/
#include "qemu/osdep.h"
#include "qemu.h"
+#include "user-internals.h"
#include "signal-common.h"
#include "linux-user/trace.h"
diff --git a/linux-user/cris/cpu_loop.c b/linux-user/cris/cpu_loop.c
index 8c9fc3127ec..b9085619c4c 100644
--- a/linux-user/cris/cpu_loop.c
+++ b/linux-user/cris/cpu_loop.c
@@ -20,6 +20,7 @@
#include "qemu/osdep.h"
#include "qemu-common.h"
#include "qemu.h"
+#include "user-internals.h"
#include "cpu_loop-common.h"
#include "signal-common.h"
diff --git a/linux-user/cris/signal.c b/linux-user/cris/signal.c
index 1e02194377b..2c39bdf7277 100644
--- a/linux-user/cris/signal.c
+++ b/linux-user/cris/signal.c
@@ -18,6 +18,7 @@
*/
#include "qemu/osdep.h"
#include "qemu.h"
+#include "user-internals.h"
#include "signal-common.h"
#include "linux-user/trace.h"
diff --git a/linux-user/elfload.c b/linux-user/elfload.c
index c291f3cee09..5f9e2141ad1 100644
--- a/linux-user/elfload.c
+++ b/linux-user/elfload.c
@@ -6,6 +6,7 @@
#include <sys/shm.h>
#include "qemu.h"
+#include "user-internals.h"
#include "loader.h"
#include "user-mmap.h"
#include "disas/disas.h"
diff --git a/linux-user/exit.c b/linux-user/exit.c
index 527e29cbc19..68a3a6f9df0 100644
--- a/linux-user/exit.c
+++ b/linux-user/exit.c
@@ -18,6 +18,7 @@
*/
#include "qemu/osdep.h"
#include "qemu.h"
+#include "user-internals.h"
#ifdef CONFIG_GPROF
#include <sys/gmon.h>
#endif
diff --git a/linux-user/fd-trans.c b/linux-user/fd-trans.c
index 48203c1af9d..69410899590 100644
--- a/linux-user/fd-trans.c
+++ b/linux-user/fd-trans.c
@@ -27,6 +27,7 @@
#include <linux/if_bridge.h>
#endif
#include "qemu.h"
+#include "user-internals.h"
#include "fd-trans.h"
#include "signal-common.h"
diff --git a/linux-user/flatload.c b/linux-user/flatload.c
index 99550061db8..e4c2f89a226 100644
--- a/linux-user/flatload.c
+++ b/linux-user/flatload.c
@@ -36,6 +36,7 @@
#include "qemu/osdep.h"
#include "qemu.h"
+#include "user-internals.h"
#include "loader.h"
#include "user-mmap.h"
#include "flat.h"
diff --git a/linux-user/hexagon/cpu_loop.c b/linux-user/hexagon/cpu_loop.c
index 348d2dc3413..bee2a9e4ea9 100644
--- a/linux-user/hexagon/cpu_loop.c
+++ b/linux-user/hexagon/cpu_loop.c
@@ -20,6 +20,7 @@
#include "qemu/osdep.h"
#include "qemu.h"
+#include "user-internals.h"
#include "cpu_loop-common.h"
#include "signal-common.h"
#include "internal.h"
diff --git a/linux-user/hexagon/signal.c b/linux-user/hexagon/signal.c
index 85eab5e9438..c7f0bf6b928 100644
--- a/linux-user/hexagon/signal.c
+++ b/linux-user/hexagon/signal.c
@@ -19,6 +19,7 @@
*/
#include "qemu/osdep.h"
#include "qemu.h"
+#include "user-internals.h"
#include "signal-common.h"
#include "linux-user/trace.h"
diff --git a/linux-user/hppa/cpu_loop.c b/linux-user/hppa/cpu_loop.c
index c3661994a57..81607a9b271 100644
--- a/linux-user/hppa/cpu_loop.c
+++ b/linux-user/hppa/cpu_loop.c
@@ -19,6 +19,7 @@
#include "qemu/osdep.h"
#include "qemu.h"
+#include "user-internals.h"
#include "cpu_loop-common.h"
#include "signal-common.h"
diff --git a/linux-user/hppa/signal.c b/linux-user/hppa/signal.c
index 0e266f472d5..c2fbc26ebb6 100644
--- a/linux-user/hppa/signal.c
+++ b/linux-user/hppa/signal.c
@@ -18,6 +18,7 @@
*/
#include "qemu/osdep.h"
#include "qemu.h"
+#include "user-internals.h"
#include "signal-common.h"
#include "linux-user/trace.h"
diff --git a/linux-user/i386/cpu_loop.c b/linux-user/i386/cpu_loop.c
index fcc410a426a..f6a1cc632b1 100644
--- a/linux-user/i386/cpu_loop.c
+++ b/linux-user/i386/cpu_loop.c
@@ -20,6 +20,7 @@
#include "qemu/osdep.h"
#include "qemu-common.h"
#include "qemu.h"
+#include "user-internals.h"
#include "cpu_loop-common.h"
#include "signal-common.h"
#include "user-mmap.h"
diff --git a/linux-user/i386/signal.c b/linux-user/i386/signal.c
index 841cd196510..3b4b55fc0a2 100644
--- a/linux-user/i386/signal.c
+++ b/linux-user/i386/signal.c
@@ -18,6 +18,7 @@
*/
#include "qemu/osdep.h"
#include "qemu.h"
+#include "user-internals.h"
#include "signal-common.h"
#include "linux-user/trace.h"
diff --git a/linux-user/linuxload.c b/linux-user/linuxload.c
index 27be7090d8f..2ed5fc45ed8 100644
--- a/linux-user/linuxload.c
+++ b/linux-user/linuxload.c
@@ -2,6 +2,7 @@
#include "qemu/osdep.h"
#include "qemu.h"
+#include "user-internals.h"
#include "loader.h"
#define NGROUPS 32
diff --git a/linux-user/m68k/cpu_loop.c b/linux-user/m68k/cpu_loop.c
index 3a330401bf2..ebf32be78f8 100644
--- a/linux-user/m68k/cpu_loop.c
+++ b/linux-user/m68k/cpu_loop.c
@@ -20,6 +20,7 @@
#include "qemu/osdep.h"
#include "qemu-common.h"
#include "qemu.h"
+#include "user-internals.h"
#include "cpu_loop-common.h"
#include "signal-common.h"
diff --git a/linux-user/m68k/signal.c b/linux-user/m68k/signal.c
index d06230655e9..4f8eb6f727e 100644
--- a/linux-user/m68k/signal.c
+++ b/linux-user/m68k/signal.c
@@ -18,6 +18,7 @@
*/
#include "qemu/osdep.h"
#include "qemu.h"
+#include "user-internals.h"
#include "signal-common.h"
#include "linux-user/trace.h"
diff --git a/linux-user/main.c b/linux-user/main.c
index a76aec73368..9edc0b22207 100644
--- a/linux-user/main.c
+++ b/linux-user/main.c
@@ -30,6 +30,7 @@
#include "qapi/error.h"
#include "qemu.h"
+#include "user-internals.h"
#include "qemu/path.h"
#include "qemu/queue.h"
#include "qemu/config-file.h"
diff --git a/linux-user/microblaze/cpu_loop.c b/linux-user/microblaze/cpu_loop.c
index 0d2c8f8dea8..52222eb93fb 100644
--- a/linux-user/microblaze/cpu_loop.c
+++ b/linux-user/microblaze/cpu_loop.c
@@ -20,6 +20,7 @@
#include "qemu/osdep.h"
#include "qemu-common.h"
#include "qemu.h"
+#include "user-internals.h"
#include "cpu_loop-common.h"
#include "signal-common.h"
diff --git a/linux-user/microblaze/signal.c b/linux-user/microblaze/signal.c
index 4c483bd8c60..b822679d180 100644
--- a/linux-user/microblaze/signal.c
+++ b/linux-user/microblaze/signal.c
@@ -18,6 +18,7 @@
*/
#include "qemu/osdep.h"
#include "qemu.h"
+#include "user-internals.h"
#include "signal-common.h"
#include "linux-user/trace.h"
diff --git a/linux-user/mips/cpu_loop.c b/linux-user/mips/cpu_loop.c
index 7dfaa0cb1e1..cb03fb066b9 100644
--- a/linux-user/mips/cpu_loop.c
+++ b/linux-user/mips/cpu_loop.c
@@ -20,6 +20,7 @@
#include "qemu/osdep.h"
#include "qemu-common.h"
#include "qemu.h"
+#include "user-internals.h"
#include "cpu_loop-common.h"
#include "signal-common.h"
#include "elf.h"
diff --git a/linux-user/mips/signal.c b/linux-user/mips/signal.c
index e6be807a81a..d174b3453cc 100644
--- a/linux-user/mips/signal.c
+++ b/linux-user/mips/signal.c
@@ -18,6 +18,7 @@
*/
#include "qemu/osdep.h"
#include "qemu.h"
+#include "user-internals.h"
#include "signal-common.h"
#include "linux-user/trace.h"
diff --git a/linux-user/mmap.c b/linux-user/mmap.c
index 4b182444bbd..c125031b904 100644
--- a/linux-user/mmap.c
+++ b/linux-user/mmap.c
@@ -20,6 +20,7 @@
#include "trace.h"
#include "exec/log.h"
#include "qemu.h"
+#include "user-internals.h"
#include "user-mmap.h"
static pthread_mutex_t mmap_mutex = PTHREAD_MUTEX_INITIALIZER;
diff --git a/linux-user/nios2/cpu_loop.c b/linux-user/nios2/cpu_loop.c
index 68f95d7ad7b..34290fb3b51 100644
--- a/linux-user/nios2/cpu_loop.c
+++ b/linux-user/nios2/cpu_loop.c
@@ -19,6 +19,7 @@
#include "qemu/osdep.h"
#include "qemu.h"
+#include "user-internals.h"
#include "cpu_loop-common.h"
#include "signal-common.h"
diff --git a/linux-user/nios2/signal.c b/linux-user/nios2/signal.c
index cc3872f11da..a77e8a40f46 100644
--- a/linux-user/nios2/signal.c
+++ b/linux-user/nios2/signal.c
@@ -18,6 +18,7 @@
*/
#include "qemu/osdep.h"
#include "qemu.h"
+#include "user-internals.h"
#include "signal-common.h"
#include "linux-user/trace.h"
diff --git a/linux-user/openrisc/cpu_loop.c b/linux-user/openrisc/cpu_loop.c
index f6c67859887..f6360db47c2 100644
--- a/linux-user/openrisc/cpu_loop.c
+++ b/linux-user/openrisc/cpu_loop.c
@@ -20,6 +20,7 @@
#include "qemu/osdep.h"
#include "qemu-common.h"
#include "qemu.h"
+#include "user-internals.h"
#include "cpu_loop-common.h"
#include "signal-common.h"
diff --git a/linux-user/openrisc/signal.c b/linux-user/openrisc/signal.c
index 5c5640a2848..ca2532bf500 100644
--- a/linux-user/openrisc/signal.c
+++ b/linux-user/openrisc/signal.c
@@ -18,6 +18,7 @@
*/
#include "qemu/osdep.h"
#include "qemu.h"
+#include "user-internals.h"
#include "signal-common.h"
#include "linux-user/trace.h"
diff --git a/linux-user/ppc/cpu_loop.c b/linux-user/ppc/cpu_loop.c
index ace431238c2..840b23736bf 100644
--- a/linux-user/ppc/cpu_loop.c
+++ b/linux-user/ppc/cpu_loop.c
@@ -20,6 +20,7 @@
#include "qemu/osdep.h"
#include "qemu-common.h"
#include "qemu.h"
+#include "user-internals.h"
#include "cpu_loop-common.h"
#include "signal-common.h"
diff --git a/linux-user/ppc/signal.c b/linux-user/ppc/signal.c
index edfad28a375..e4d0dfa3bf7 100644
--- a/linux-user/ppc/signal.c
+++ b/linux-user/ppc/signal.c
@@ -18,6 +18,7 @@
*/
#include "qemu/osdep.h"
#include "qemu.h"
+#include "user-internals.h"
#include "signal-common.h"
#include "linux-user/trace.h"
diff --git a/linux-user/riscv/cpu_loop.c b/linux-user/riscv/cpu_loop.c
index 47978c4e354..9859a366e42 100644
--- a/linux-user/riscv/cpu_loop.c
+++ b/linux-user/riscv/cpu_loop.c
@@ -21,6 +21,7 @@
#include "qemu-common.h"
#include "qemu/error-report.h"
#include "qemu.h"
+#include "user-internals.h"
#include "cpu_loop-common.h"
#include "signal-common.h"
#include "elf.h"
diff --git a/linux-user/riscv/signal.c b/linux-user/riscv/signal.c
index 9405c7fd9af..f7f33bc90ae 100644
--- a/linux-user/riscv/signal.c
+++ b/linux-user/riscv/signal.c
@@ -18,6 +18,7 @@
*/
#include "qemu/osdep.h"
#include "qemu.h"
+#include "user-internals.h"
#include "signal-common.h"
#include "linux-user/trace.h"
diff --git a/linux-user/s390x/cpu_loop.c b/linux-user/s390x/cpu_loop.c
index ae70f630532..69b69981f67 100644
--- a/linux-user/s390x/cpu_loop.c
+++ b/linux-user/s390x/cpu_loop.c
@@ -20,6 +20,7 @@
#include "qemu/osdep.h"
#include "qemu-common.h"
#include "qemu.h"
+#include "user-internals.h"
#include "cpu_loop-common.h"
#include "signal-common.h"
diff --git a/linux-user/s390x/signal.c b/linux-user/s390x/signal.c
index bf8a8fbfe9f..80f34086d7b 100644
--- a/linux-user/s390x/signal.c
+++ b/linux-user/s390x/signal.c
@@ -18,6 +18,7 @@
*/
#include "qemu/osdep.h"
#include "qemu.h"
+#include "user-internals.h"
#include "signal-common.h"
#include "linux-user/trace.h"
diff --git a/linux-user/semihost.c b/linux-user/semihost.c
index f53ab526fba..17f074ac565 100644
--- a/linux-user/semihost.c
+++ b/linux-user/semihost.c
@@ -13,6 +13,7 @@
#include "qemu/osdep.h"
#include "semihosting/console.h"
#include "qemu.h"
+#include "user-internals.h"
#include <termios.h>
int qemu_semihosting_console_outs(CPUArchState *env, target_ulong addr)
diff --git a/linux-user/sh4/cpu_loop.c b/linux-user/sh4/cpu_loop.c
index 06e4a4d0075..65b8972e3c9 100644
--- a/linux-user/sh4/cpu_loop.c
+++ b/linux-user/sh4/cpu_loop.c
@@ -20,6 +20,7 @@
#include "qemu/osdep.h"
#include "qemu-common.h"
#include "qemu.h"
+#include "user-internals.h"
#include "cpu_loop-common.h"
#include "signal-common.h"
diff --git a/linux-user/sh4/signal.c b/linux-user/sh4/signal.c
index 0451e65806a..d70d744befc 100644
--- a/linux-user/sh4/signal.c
+++ b/linux-user/sh4/signal.c
@@ -18,6 +18,7 @@
*/
#include "qemu/osdep.h"
#include "qemu.h"
+#include "user-internals.h"
#include "signal-common.h"
#include "linux-user/trace.h"
diff --git a/linux-user/signal.c b/linux-user/signal.c
index 0fa15f088b0..6af66123d0f 100644
--- a/linux-user/signal.c
+++ b/linux-user/signal.c
@@ -22,6 +22,7 @@
#include <sys/resource.h>
#include "qemu.h"
+#include "user-internals.h"
#include "strace.h"
#include "loader.h"
#include "trace.h"
diff --git a/linux-user/sparc/cpu_loop.c b/linux-user/sparc/cpu_loop.c
index b2c06111943..ad29b4eb6a3 100644
--- a/linux-user/sparc/cpu_loop.c
+++ b/linux-user/sparc/cpu_loop.c
@@ -20,6 +20,7 @@
#include "qemu/osdep.h"
#include "qemu-common.h"
#include "qemu.h"
+#include "user-internals.h"
#include "cpu_loop-common.h"
#include "signal-common.h"
diff --git a/linux-user/sparc/signal.c b/linux-user/sparc/signal.c
index 0cc3db5570e..3bc023d281a 100644
--- a/linux-user/sparc/signal.c
+++ b/linux-user/sparc/signal.c
@@ -18,6 +18,7 @@
*/
#include "qemu/osdep.h"
#include "qemu.h"
+#include "user-internals.h"
#include "signal-common.h"
#include "linux-user/trace.h"
diff --git a/linux-user/strace.c b/linux-user/strace.c
index ee3429fae82..2cdbf030ba4 100644
--- a/linux-user/strace.c
+++ b/linux-user/strace.c
@@ -15,6 +15,7 @@
#include <linux/netlink.h>
#include <sched.h>
#include "qemu.h"
+#include "user-internals.h"
#include "strace.h"
struct syscallname {
diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index 9873830b465..e4ffdec0d83 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -127,6 +127,7 @@
#include "uname.h"
#include "qemu.h"
+#include "user-internals.h"
#include "strace.h"
#include "signal-common.h"
#include "loader.h"
diff --git a/linux-user/uaccess.c b/linux-user/uaccess.c
index 6a5b029607c..425cbf677f7 100644
--- a/linux-user/uaccess.c
+++ b/linux-user/uaccess.c
@@ -3,6 +3,7 @@
#include "qemu/cutils.h"
#include "qemu.h"
+#include "user-internals.h"
void *lock_user(int type, abi_ulong guest_addr, ssize_t len, bool copy)
{
diff --git a/linux-user/uname.c b/linux-user/uname.c
index a09ffe1ea7b..1d82608c100 100644
--- a/linux-user/uname.c
+++ b/linux-user/uname.c
@@ -20,6 +20,7 @@
#include "qemu/osdep.h"
#include "qemu.h"
+#include "user-internals.h"
//#include "qemu-common.h"
#include "uname.h"
diff --git a/linux-user/vm86.c b/linux-user/vm86.c
index 4412522c4c4..c2facf3fc2d 100644
--- a/linux-user/vm86.c
+++ b/linux-user/vm86.c
@@ -19,6 +19,7 @@
#include "qemu/osdep.h"
#include "qemu.h"
+#include "user-internals.h"
//#define DEBUG_VM86
diff --git a/linux-user/xtensa/cpu_loop.c b/linux-user/xtensa/cpu_loop.c
index bb5335e2b6c..622afbcd345 100644
--- a/linux-user/xtensa/cpu_loop.c
+++ b/linux-user/xtensa/cpu_loop.c
@@ -19,6 +19,7 @@
#include "qemu/osdep.h"
#include "qemu.h"
+#include "user-internals.h"
#include "cpu_loop-common.h"
#include "signal-common.h"
diff --git a/linux-user/xtensa/signal.c b/linux-user/xtensa/signal.c
index 72771e1294b..7a3bfb92cad 100644
--- a/linux-user/xtensa/signal.c
+++ b/linux-user/xtensa/signal.c
@@ -18,6 +18,7 @@
*/
#include "qemu/osdep.h"
#include "qemu.h"
+#include "user-internals.h"
#include "signal-common.h"
#include "linux-user/trace.h"
--
2.20.1
^ permalink raw reply related [flat|nested] 24+ messages in thread
* [PATCH v2 8/9] linux-user: Don't include gdbstub.h in qemu.h
2021-09-08 15:43 [PATCH v2 0/9] linux-user: split internals out of qemu.h Peter Maydell
` (6 preceding siblings ...)
2021-09-08 15:44 ` [PATCH v2 7/9] linux-user: Split linux-user internals out of qemu.h Peter Maydell
@ 2021-09-08 15:44 ` Peter Maydell
2021-09-12 16:35 ` Richard Henderson
2021-09-08 15:44 ` [PATCH v2 9/9] linux-user: Drop unneeded includes from qemu.h Peter Maydell
2021-09-13 19:07 ` [PATCH v2 0/9] linux-user: split internals out of qemu.h Laurent Vivier
9 siblings, 1 reply; 24+ messages in thread
From: Peter Maydell @ 2021-09-08 15:44 UTC (permalink / raw)
To: qemu-devel; +Cc: Riku Voipio, Laurent Vivier
Currently the linux-user qemu.h pulls in gdbstub.h. There's no real reason
why it should do this; include it directly from the C files which require
it, and drop the include line in qemu.h.
(Note that several of the C files previously relying on this indirect
include were going out of their way to only include gdbstub.h conditionally
on not CONFIG_USER_ONLY!)
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
---
linux-user/qemu.h | 1 -
gdbstub.c | 2 +-
linux-user/exit.c | 1 +
linux-user/main.c | 1 +
linux-user/signal.c | 2 ++
semihosting/arm-compat-semi.c | 2 +-
target/m68k/m68k-semi.c | 2 +-
target/nios2/nios2-semi.c | 2 +-
8 files changed, 8 insertions(+), 5 deletions(-)
diff --git a/linux-user/qemu.h b/linux-user/qemu.h
index 92290a55c0d..fda90fc28d6 100644
--- a/linux-user/qemu.h
+++ b/linux-user/qemu.h
@@ -11,7 +11,6 @@
#include "syscall_defs.h"
#include "target_syscall.h"
-#include "exec/gdbstub.h"
/*
* This is the size of the host kernel's sigset_t, needed where we make
diff --git a/gdbstub.c b/gdbstub.c
index 5d8e6ae3cd9..36b85aa50e2 100644
--- a/gdbstub.c
+++ b/gdbstub.c
@@ -31,13 +31,13 @@
#include "qemu/cutils.h"
#include "qemu/module.h"
#include "trace/trace-root.h"
+#include "exec/gdbstub.h"
#ifdef CONFIG_USER_ONLY
#include "qemu.h"
#else
#include "monitor/monitor.h"
#include "chardev/char.h"
#include "chardev/char-fe.h"
-#include "exec/gdbstub.h"
#include "hw/cpu/cluster.h"
#include "hw/boards.h"
#endif
diff --git a/linux-user/exit.c b/linux-user/exit.c
index 68a3a6f9df0..fa6ef0b9b44 100644
--- a/linux-user/exit.c
+++ b/linux-user/exit.c
@@ -17,6 +17,7 @@
* along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#include "qemu/osdep.h"
+#include "exec/gdbstub.h"
#include "qemu.h"
#include "user-internals.h"
#ifdef CONFIG_GPROF
diff --git a/linux-user/main.c b/linux-user/main.c
index 9edc0b22207..5ce17e423db 100644
--- a/linux-user/main.c
+++ b/linux-user/main.c
@@ -40,6 +40,7 @@
#include "qemu/module.h"
#include "qemu/plugin.h"
#include "exec/exec-all.h"
+#include "exec/gdbstub.h"
#include "tcg/tcg.h"
#include "qemu/timer.h"
#include "qemu/envlist.h"
diff --git a/linux-user/signal.c b/linux-user/signal.c
index 6af66123d0f..f8346f5ec5f 100644
--- a/linux-user/signal.c
+++ b/linux-user/signal.c
@@ -18,6 +18,8 @@
*/
#include "qemu/osdep.h"
#include "qemu/bitops.h"
+#include "exec/gdbstub.h"
+
#include <sys/ucontext.h>
#include <sys/resource.h>
diff --git a/semihosting/arm-compat-semi.c b/semihosting/arm-compat-semi.c
index 1c29146dcfa..01badea99c8 100644
--- a/semihosting/arm-compat-semi.c
+++ b/semihosting/arm-compat-semi.c
@@ -37,12 +37,12 @@
#include "semihosting/console.h"
#include "semihosting/common-semi.h"
#include "qemu/timer.h"
+#include "exec/gdbstub.h"
#ifdef CONFIG_USER_ONLY
#include "qemu.h"
#define COMMON_SEMI_HEAP_SIZE (128 * 1024 * 1024)
#else
-#include "exec/gdbstub.h"
#include "qemu/cutils.h"
#ifdef TARGET_ARM
#include "hw/arm/boot.h"
diff --git a/target/m68k/m68k-semi.c b/target/m68k/m68k-semi.c
index d919245e4f8..44ec7e4612c 100644
--- a/target/m68k/m68k-semi.c
+++ b/target/m68k/m68k-semi.c
@@ -20,11 +20,11 @@
#include "qemu/osdep.h"
#include "cpu.h"
+#include "exec/gdbstub.h"
#if defined(CONFIG_USER_ONLY)
#include "qemu.h"
#define SEMIHOSTING_HEAP_SIZE (128 * 1024 * 1024)
#else
-#include "exec/gdbstub.h"
#include "exec/softmmu-semi.h"
#include "hw/boards.h"
#endif
diff --git a/target/nios2/nios2-semi.c b/target/nios2/nios2-semi.c
index e508b2fafce..fe5598bae4d 100644
--- a/target/nios2/nios2-semi.c
+++ b/target/nios2/nios2-semi.c
@@ -24,11 +24,11 @@
#include "qemu/osdep.h"
#include "cpu.h"
+#include "exec/gdbstub.h"
#if defined(CONFIG_USER_ONLY)
#include "qemu.h"
#else
#include "qemu-common.h"
-#include "exec/gdbstub.h"
#include "exec/softmmu-semi.h"
#endif
#include "qemu/log.h"
--
2.20.1
^ permalink raw reply related [flat|nested] 24+ messages in thread
* [PATCH v2 9/9] linux-user: Drop unneeded includes from qemu.h
2021-09-08 15:43 [PATCH v2 0/9] linux-user: split internals out of qemu.h Peter Maydell
` (7 preceding siblings ...)
2021-09-08 15:44 ` [PATCH v2 8/9] linux-user: Don't include gdbstub.h in qemu.h Peter Maydell
@ 2021-09-08 15:44 ` Peter Maydell
2021-09-12 16:36 ` Richard Henderson
2021-09-13 19:07 ` [PATCH v2 0/9] linux-user: split internals out of qemu.h Laurent Vivier
9 siblings, 1 reply; 24+ messages in thread
From: Peter Maydell @ 2021-09-08 15:44 UTC (permalink / raw)
To: qemu-devel; +Cc: Riku Voipio, Laurent Vivier
Trim down the #includes in qemu.h where we can, either by
dropping unneeded headers or by moving them to user-internals.h.
This includes deleting a couple of #includes that appear at
weird points midway through the header file.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
---
linux-user/qemu.h | 4 ----
linux-user/user-internals.h | 2 ++
thunk.c | 1 +
3 files changed, 3 insertions(+), 4 deletions(-)
diff --git a/linux-user/qemu.h b/linux-user/qemu.h
index fda90fc28d6..5c713fa8ab2 100644
--- a/linux-user/qemu.h
+++ b/linux-user/qemu.h
@@ -2,7 +2,6 @@
#define QEMU_H
#include "cpu.h"
-#include "exec/exec-all.h"
#include "exec/cpu_ldst.h"
#undef DEBUG_REMAP
@@ -163,8 +162,6 @@ typedef struct TaskState {
struct target_sigaltstack sigaltstack_used;
} __attribute__((aligned(16))) TaskState;
-#include "qemu/log.h"
-
abi_long do_brk(abi_ulong new_brk);
/* user access */
@@ -349,5 +346,4 @@ void *lock_user_string(abi_ulong guest_addr);
#define unlock_user_struct(host_ptr, guest_addr, copy) \
unlock_user(host_ptr, guest_addr, (copy) ? sizeof(*host_ptr) : 0)
-#include <pthread.h>
#endif /* QEMU_H */
diff --git a/linux-user/user-internals.h b/linux-user/user-internals.h
index 1729a8b62e1..661612a088b 100644
--- a/linux-user/user-internals.h
+++ b/linux-user/user-internals.h
@@ -20,6 +20,8 @@
#include "hostdep.h"
#include "exec/user/thunk.h"
+#include "exec/exec-all.h"
+#include "qemu/log.h"
extern char *exec_path;
void init_task_state(TaskState *ts);
diff --git a/thunk.c b/thunk.c
index fc5be1a502e..dac4bf11c65 100644
--- a/thunk.c
+++ b/thunk.c
@@ -17,6 +17,7 @@
* License along with this library; if not, see <http://www.gnu.org/licenses/>.
*/
#include "qemu/osdep.h"
+#include "qemu/log.h"
#include "qemu.h"
#include "exec/user/thunk.h"
--
2.20.1
^ permalink raw reply related [flat|nested] 24+ messages in thread
* Re: [PATCH v2 3/9] linux-user: Split signal-related prototypes into signal-common.h
2021-09-08 15:43 ` [PATCH v2 3/9] linux-user: Split signal-related prototypes into signal-common.h Peter Maydell
@ 2021-09-08 15:59 ` Philippe Mathieu-Daudé
2021-09-12 16:16 ` Richard Henderson
1 sibling, 0 replies; 24+ messages in thread
From: Philippe Mathieu-Daudé @ 2021-09-08 15:59 UTC (permalink / raw)
To: Peter Maydell, qemu-devel; +Cc: Riku Voipio, Laurent Vivier
On 9/8/21 5:43 PM, Peter Maydell wrote:
> Split the signal related prototypes into the existing header file
> signal-common.h, and include it in those places that now require it.
>
> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
> ---
> v1->v2: use existing signal-common.h instead of new header
> ---
> linux-user/qemu.h | 36 --------------------------------
> linux-user/signal-common.h | 36 ++++++++++++++++++++++++++++++++
> linux-user/aarch64/cpu_loop.c | 1 +
> linux-user/alpha/cpu_loop.c | 1 +
> linux-user/arm/cpu_loop.c | 1 +
> linux-user/cris/cpu_loop.c | 1 +
> linux-user/fd-trans.c | 1 +
> linux-user/hexagon/cpu_loop.c | 1 +
> linux-user/hppa/cpu_loop.c | 1 +
> linux-user/i386/cpu_loop.c | 1 +
> linux-user/m68k/cpu_loop.c | 1 +
> linux-user/main.c | 1 +
> linux-user/microblaze/cpu_loop.c | 1 +
> linux-user/mips/cpu_loop.c | 1 +
> linux-user/nios2/cpu_loop.c | 1 +
> linux-user/openrisc/cpu_loop.c | 1 +
> linux-user/ppc/cpu_loop.c | 1 +
> linux-user/riscv/cpu_loop.c | 1 +
> linux-user/s390x/cpu_loop.c | 1 +
> linux-user/sh4/cpu_loop.c | 1 +
> linux-user/sparc/cpu_loop.c | 1 +
> linux-user/syscall.c | 1 +
> linux-user/xtensa/cpu_loop.c | 1 +
> 23 files changed, 57 insertions(+), 36 deletions(-)
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
^ permalink raw reply [flat|nested] 24+ messages in thread
* Re: [PATCH v2 4/9] linux-user: Split loader-related prototypes into loader.h
2021-09-08 15:44 ` [PATCH v2 4/9] linux-user: Split loader-related prototypes into loader.h Peter Maydell
@ 2021-09-08 16:00 ` Philippe Mathieu-Daudé
2021-09-12 16:17 ` Richard Henderson
1 sibling, 0 replies; 24+ messages in thread
From: Philippe Mathieu-Daudé @ 2021-09-08 16:00 UTC (permalink / raw)
To: Peter Maydell, qemu-devel; +Cc: Riku Voipio, Laurent Vivier
On 9/8/21 5:44 PM, Peter Maydell wrote:
> Split guest-binary loader prototypes out into a new header
> loader.h which we include only where required.
>
> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
> ---
> linux-user/loader.h | 59 ++++++++++++++++++++++++++++++++++++++++++
> linux-user/qemu.h | 40 ----------------------------
> linux-user/elfload.c | 1 +
> linux-user/flatload.c | 1 +
> linux-user/linuxload.c | 1 +
> linux-user/main.c | 1 +
> linux-user/signal.c | 1 +
> linux-user/syscall.c | 1 +
> 8 files changed, 65 insertions(+), 40 deletions(-)
> create mode 100644 linux-user/loader.h
>
> diff --git a/linux-user/loader.h b/linux-user/loader.h
> +void do_init_thread(struct target_pt_regs *regs, struct image_info *infop);
> +abi_ulong loader_build_argptr(int envc, int argc, abi_ulong sp,
> + abi_ulong stringp, int push_ptr);
> +int loader_exec(int fdexec, const char *filename, char **argv, char **envp,
> + struct target_pt_regs *regs, struct image_info *infop,
> + struct linux_binprm *);
Pre-existing invalid style alignment, otherwise:
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
^ permalink raw reply [flat|nested] 24+ messages in thread
* Re: [PATCH v2 5/9] linux-user: Split mmap prototypes into user-mmap.h
2021-09-08 15:44 ` [PATCH v2 5/9] linux-user: Split mmap prototypes into user-mmap.h Peter Maydell
@ 2021-09-08 16:01 ` Philippe Mathieu-Daudé
2021-09-12 16:18 ` Richard Henderson
1 sibling, 0 replies; 24+ messages in thread
From: Philippe Mathieu-Daudé @ 2021-09-08 16:01 UTC (permalink / raw)
To: Peter Maydell, qemu-devel; +Cc: Riku Voipio, Laurent Vivier
On 9/8/21 5:44 PM, Peter Maydell wrote:
> Split out the mmap prototypes into a new header user-mmap.h
> which we only include where required.
>
> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
> ---
> linux-user/qemu.h | 14 --------------
> linux-user/user-mmap.h | 34 ++++++++++++++++++++++++++++++++++
> linux-user/elfload.c | 1 +
> linux-user/flatload.c | 1 +
> linux-user/i386/cpu_loop.c | 1 +
> linux-user/main.c | 1 +
> linux-user/mmap.c | 1 +
> linux-user/syscall.c | 1 +
> 8 files changed, 40 insertions(+), 14 deletions(-)
> create mode 100644 linux-user/user-mmap.h
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
^ permalink raw reply [flat|nested] 24+ messages in thread
* Re: [PATCH v2 1/9] linux-user: Fix coding style nits in qemu.h
2021-09-08 15:43 ` [PATCH v2 1/9] linux-user: Fix coding style nits in qemu.h Peter Maydell
@ 2021-09-12 16:07 ` Richard Henderson
0 siblings, 0 replies; 24+ messages in thread
From: Richard Henderson @ 2021-09-12 16:07 UTC (permalink / raw)
To: Peter Maydell, qemu-devel; +Cc: Riku Voipio, Laurent Vivier
On 9/8/21 8:43 AM, Peter Maydell wrote:
> We're about to move a lot of the code in qemu.h out into different
> header files; fix the coding style nits first so that checkpatch
> is happy with the pure code-movement patches. This is mostly
> block-comment style but also a few whitespace issues.
>
> Signed-off-by: Peter Maydell<peter.maydell@linaro.org>
> Reviewed-by: Philippe Mathieu-Daudé<f4bug@amsat.org>
> ---
> linux-user/qemu.h | 47 ++++++++++++++++++++++++++++++-----------------
> 1 file changed, 30 insertions(+), 17 deletions(-)
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
r~
^ permalink raw reply [flat|nested] 24+ messages in thread
* Re: [PATCH v2 2/9] linux-user: Split strace prototypes into strace.h
2021-09-08 15:43 ` [PATCH v2 2/9] linux-user: Split strace prototypes into strace.h Peter Maydell
@ 2021-09-12 16:16 ` Richard Henderson
0 siblings, 0 replies; 24+ messages in thread
From: Richard Henderson @ 2021-09-12 16:16 UTC (permalink / raw)
To: Peter Maydell, qemu-devel; +Cc: Riku Voipio, Laurent Vivier
On 9/8/21 8:43 AM, Peter Maydell wrote:
> The functions implemented in strace.c are only used in a few files in
> linux-user; split them out of qemu.h and into a new strace.h header
> which we include in the places that need it.
>
> Signed-off-by: Peter Maydell<peter.maydell@linaro.org>
> Reviewed-by: Philippe Mathieu-Daudé<f4bug@amsat.org>
> ---
> linux-user/qemu.h | 18 ------------------
> linux-user/strace.h | 38 ++++++++++++++++++++++++++++++++++++++
> linux-user/signal.c | 1 +
> linux-user/strace.c | 2 ++
> linux-user/syscall.c | 1 +
> 5 files changed, 42 insertions(+), 18 deletions(-)
> create mode 100644 linux-user/strace.h
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
r~
^ permalink raw reply [flat|nested] 24+ messages in thread
* Re: [PATCH v2 3/9] linux-user: Split signal-related prototypes into signal-common.h
2021-09-08 15:43 ` [PATCH v2 3/9] linux-user: Split signal-related prototypes into signal-common.h Peter Maydell
2021-09-08 15:59 ` Philippe Mathieu-Daudé
@ 2021-09-12 16:16 ` Richard Henderson
1 sibling, 0 replies; 24+ messages in thread
From: Richard Henderson @ 2021-09-12 16:16 UTC (permalink / raw)
To: Peter Maydell, qemu-devel; +Cc: Riku Voipio, Laurent Vivier
On 9/8/21 8:43 AM, Peter Maydell wrote:
> Split the signal related prototypes into the existing header file
> signal-common.h, and include it in those places that now require it.
>
> Signed-off-by: Peter Maydell<peter.maydell@linaro.org>
> ---
> v1->v2: use existing signal-common.h instead of new header
> ---
> linux-user/qemu.h | 36 --------------------------------
> linux-user/signal-common.h | 36 ++++++++++++++++++++++++++++++++
> linux-user/aarch64/cpu_loop.c | 1 +
> linux-user/alpha/cpu_loop.c | 1 +
> linux-user/arm/cpu_loop.c | 1 +
> linux-user/cris/cpu_loop.c | 1 +
> linux-user/fd-trans.c | 1 +
> linux-user/hexagon/cpu_loop.c | 1 +
> linux-user/hppa/cpu_loop.c | 1 +
> linux-user/i386/cpu_loop.c | 1 +
> linux-user/m68k/cpu_loop.c | 1 +
> linux-user/main.c | 1 +
> linux-user/microblaze/cpu_loop.c | 1 +
> linux-user/mips/cpu_loop.c | 1 +
> linux-user/nios2/cpu_loop.c | 1 +
> linux-user/openrisc/cpu_loop.c | 1 +
> linux-user/ppc/cpu_loop.c | 1 +
> linux-user/riscv/cpu_loop.c | 1 +
> linux-user/s390x/cpu_loop.c | 1 +
> linux-user/sh4/cpu_loop.c | 1 +
> linux-user/sparc/cpu_loop.c | 1 +
> linux-user/syscall.c | 1 +
> linux-user/xtensa/cpu_loop.c | 1 +
> 23 files changed, 57 insertions(+), 36 deletions(-)
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
r~
^ permalink raw reply [flat|nested] 24+ messages in thread
* Re: [PATCH v2 4/9] linux-user: Split loader-related prototypes into loader.h
2021-09-08 15:44 ` [PATCH v2 4/9] linux-user: Split loader-related prototypes into loader.h Peter Maydell
2021-09-08 16:00 ` Philippe Mathieu-Daudé
@ 2021-09-12 16:17 ` Richard Henderson
1 sibling, 0 replies; 24+ messages in thread
From: Richard Henderson @ 2021-09-12 16:17 UTC (permalink / raw)
To: Peter Maydell, qemu-devel; +Cc: Riku Voipio, Laurent Vivier
On 9/8/21 8:44 AM, Peter Maydell wrote:
> Split guest-binary loader prototypes out into a new header
> loader.h which we include only where required.
>
> Signed-off-by: Peter Maydell<peter.maydell@linaro.org>
> ---
> linux-user/loader.h | 59 ++++++++++++++++++++++++++++++++++++++++++
> linux-user/qemu.h | 40 ----------------------------
> linux-user/elfload.c | 1 +
> linux-user/flatload.c | 1 +
> linux-user/linuxload.c | 1 +
> linux-user/main.c | 1 +
> linux-user/signal.c | 1 +
> linux-user/syscall.c | 1 +
> 8 files changed, 65 insertions(+), 40 deletions(-)
> create mode 100644 linux-user/loader.h
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
r~
^ permalink raw reply [flat|nested] 24+ messages in thread
* Re: [PATCH v2 5/9] linux-user: Split mmap prototypes into user-mmap.h
2021-09-08 15:44 ` [PATCH v2 5/9] linux-user: Split mmap prototypes into user-mmap.h Peter Maydell
2021-09-08 16:01 ` Philippe Mathieu-Daudé
@ 2021-09-12 16:18 ` Richard Henderson
1 sibling, 0 replies; 24+ messages in thread
From: Richard Henderson @ 2021-09-12 16:18 UTC (permalink / raw)
To: Peter Maydell, qemu-devel; +Cc: Riku Voipio, Laurent Vivier
On 9/8/21 8:44 AM, Peter Maydell wrote:
> Split out the mmap prototypes into a new header user-mmap.h
> which we only include where required.
>
> Signed-off-by: Peter Maydell<peter.maydell@linaro.org>
> ---
> linux-user/qemu.h | 14 --------------
> linux-user/user-mmap.h | 34 ++++++++++++++++++++++++++++++++++
> linux-user/elfload.c | 1 +
> linux-user/flatload.c | 1 +
> linux-user/i386/cpu_loop.c | 1 +
> linux-user/main.c | 1 +
> linux-user/mmap.c | 1 +
> linux-user/syscall.c | 1 +
> 8 files changed, 40 insertions(+), 14 deletions(-)
> create mode 100644 linux-user/user-mmap.h
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
r~
^ permalink raw reply [flat|nested] 24+ messages in thread
* Re: [PATCH v2 6/9] linux-user: Split safe-syscall macro into its own header
2021-09-08 15:44 ` [PATCH v2 6/9] linux-user: Split safe-syscall macro into its own header Peter Maydell
@ 2021-09-12 16:23 ` Richard Henderson
2021-09-13 8:20 ` Peter Maydell
0 siblings, 1 reply; 24+ messages in thread
From: Richard Henderson @ 2021-09-12 16:23 UTC (permalink / raw)
To: Peter Maydell, qemu-devel; +Cc: Riku Voipio, Laurent Vivier
On 9/8/21 8:44 AM, Peter Maydell wrote:
> Split the safe-syscall macro from qemu.h into a new safe-syscall.h.
>
> Signed-off-by: Peter Maydell<peter.maydell@linaro.org>
> Reviewed-by: Philippe Mathieu-Daudé<f4bug@amsat.org>
> ---
> linux-user/qemu.h | 135 ---------------------------------
> linux-user/safe-syscall.h | 154 ++++++++++++++++++++++++++++++++++++++
> linux-user/syscall.c | 1 +
> 3 files changed, 155 insertions(+), 135 deletions(-)
> create mode 100644 linux-user/safe-syscall.h
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
> +#else
> +
> +/*
> + * Fallback for architectures which don't yet provide a safe-syscall assembly
> + * fragment; note that this is racy!
> + * This should go away when all host architectures have been updated.
> + */
> +#define safe_syscall syscall
All native tcg hosts have been updated. All that is left are those for which we fall back
to tci. At what point do we drop the fallback and simply make this a build error?
r~
^ permalink raw reply [flat|nested] 24+ messages in thread
* Re: [PATCH v2 7/9] linux-user: Split linux-user internals out of qemu.h
2021-09-08 15:44 ` [PATCH v2 7/9] linux-user: Split linux-user internals out of qemu.h Peter Maydell
@ 2021-09-12 16:28 ` Richard Henderson
0 siblings, 0 replies; 24+ messages in thread
From: Richard Henderson @ 2021-09-12 16:28 UTC (permalink / raw)
To: Peter Maydell, qemu-devel; +Cc: Riku Voipio, Laurent Vivier
On 9/8/21 8:44 AM, Peter Maydell wrote:
> qemu.h is included in various non-linux-user files (which
> mostly want the TaskState struct and the functions for
> doing usermode access to guest addresses like lock_user(),
> unlock_user(), get_user*(), etc).
>
> Split out the parts that are only used in linux-user itself
> into a new user-internals.h. This leaves qemu.h with basically
> three things:
> * the definition of the TaskState struct
> * the user-access functions and macros
> * do_brk()
> all of which are needed by code outside linux-user that
> includes qemu.h.
>
> The addition of all the extra #include lines was done with
> sed -i '/include.*qemu\.h/a #include "user-internals.h"' $(git grep -l 'include.*qemu\.h' linux-user)
> (and then undoing the change to fpa11.h).
>
> Signed-off-by: Peter Maydell<peter.maydell@linaro.org>
> ---
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
r~
^ permalink raw reply [flat|nested] 24+ messages in thread
* Re: [PATCH v2 8/9] linux-user: Don't include gdbstub.h in qemu.h
2021-09-08 15:44 ` [PATCH v2 8/9] linux-user: Don't include gdbstub.h in qemu.h Peter Maydell
@ 2021-09-12 16:35 ` Richard Henderson
0 siblings, 0 replies; 24+ messages in thread
From: Richard Henderson @ 2021-09-12 16:35 UTC (permalink / raw)
To: Peter Maydell, qemu-devel; +Cc: Riku Voipio, Laurent Vivier
On 9/8/21 8:44 AM, Peter Maydell wrote:
> Currently the linux-user qemu.h pulls in gdbstub.h. There's no real reason
> why it should do this; include it directly from the C files which require
> it, and drop the include line in qemu.h.
>
> (Note that several of the C files previously relying on this indirect
> include were going out of their way to only include gdbstub.h conditionally
> on not CONFIG_USER_ONLY!)
>
> Signed-off-by: Peter Maydell<peter.maydell@linaro.org>
> Reviewed-by: Philippe Mathieu-Daudé<f4bug@amsat.org>
> ---
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
r~
^ permalink raw reply [flat|nested] 24+ messages in thread
* Re: [PATCH v2 9/9] linux-user: Drop unneeded includes from qemu.h
2021-09-08 15:44 ` [PATCH v2 9/9] linux-user: Drop unneeded includes from qemu.h Peter Maydell
@ 2021-09-12 16:36 ` Richard Henderson
0 siblings, 0 replies; 24+ messages in thread
From: Richard Henderson @ 2021-09-12 16:36 UTC (permalink / raw)
To: Peter Maydell, qemu-devel; +Cc: Riku Voipio, Laurent Vivier
On 9/8/21 8:44 AM, Peter Maydell wrote:
> Trim down the #includes in qemu.h where we can, either by
> dropping unneeded headers or by moving them to user-internals.h.
>
> This includes deleting a couple of #includes that appear at
> weird points midway through the header file.
>
> Signed-off-by: Peter Maydell<peter.maydell@linaro.org>
> Reviewed-by: Philippe Mathieu-Daudé<f4bug@amsat.org>
> ---
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
r~
^ permalink raw reply [flat|nested] 24+ messages in thread
* Re: [PATCH v2 6/9] linux-user: Split safe-syscall macro into its own header
2021-09-12 16:23 ` Richard Henderson
@ 2021-09-13 8:20 ` Peter Maydell
0 siblings, 0 replies; 24+ messages in thread
From: Peter Maydell @ 2021-09-13 8:20 UTC (permalink / raw)
To: Richard Henderson; +Cc: Riku Voipio, QEMU Developers, Laurent Vivier
On Sun, 12 Sept 2021 at 17:23, Richard Henderson
<richard.henderson@linaro.org> wrote:
>
> On 9/8/21 8:44 AM, Peter Maydell wrote:
> > Split the safe-syscall macro from qemu.h into a new safe-syscall.h.
> >
> > Signed-off-by: Peter Maydell<peter.maydell@linaro.org>
> > Reviewed-by: Philippe Mathieu-Daudé<f4bug@amsat.org>
> > ---
> > linux-user/qemu.h | 135 ---------------------------------
> > linux-user/safe-syscall.h | 154 ++++++++++++++++++++++++++++++++++++++
> > linux-user/syscall.c | 1 +
> > 3 files changed, 155 insertions(+), 135 deletions(-)
> > create mode 100644 linux-user/safe-syscall.h
>
> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
>
>
> > +#else
> > +
> > +/*
> > + * Fallback for architectures which don't yet provide a safe-syscall assembly
> > + * fragment; note that this is racy!
> > + * This should go away when all host architectures have been updated.
> > + */
> > +#define safe_syscall syscall
>
> All native tcg hosts have been updated. All that is left are those for which we fall back
> to tci. At what point do we drop the fallback and simply make this a build error?
We should probably do that now, or at least once this cleanup has got into
master...
-- PMM
^ permalink raw reply [flat|nested] 24+ messages in thread
* Re: [PATCH v2 0/9] linux-user: split internals out of qemu.h
2021-09-08 15:43 [PATCH v2 0/9] linux-user: split internals out of qemu.h Peter Maydell
` (8 preceding siblings ...)
2021-09-08 15:44 ` [PATCH v2 9/9] linux-user: Drop unneeded includes from qemu.h Peter Maydell
@ 2021-09-13 19:07 ` Laurent Vivier
9 siblings, 0 replies; 24+ messages in thread
From: Laurent Vivier @ 2021-09-13 19:07 UTC (permalink / raw)
To: Peter Maydell, qemu-devel; +Cc: Riku Voipio
Le 08/09/2021 à 17:43, Peter Maydell a écrit :
> linux-user/qemu.h is an awkward header, for two reasons:
> (1) its name suggests it's a rather common generic header,
> but it's actually specific to the usermode emulators
> (2) it is a mix of:
> * lots of things internal to the implementation of linux-user
> * functions that a few files outside linux-user want
> (mostly the user-access functions like lock_user,
> get/put_user_*, etc, and also the TaskStruct definition)
>
> This patchset tries to clean it up a bit by at least splitting
> most of the "just internal to linux-user" parts out of qemu.h
> and putting them in a handful of different .h files that are
> then included by the linux-user files that need them.
>
> I think the ideal would probably be to eventually junk
> qemu.h entirely and have a few separate headers specifically
> for the bits that non-linux-user code needs (eg a 'user-access.h'
> for the get/put_user stuff), perhaps located somewhere that
> means we don't need to put linux-user/ on the include path.
> But that's awkward as it needs interaction with bsd-user too.
> So this much cleanup seemed like a reasonable start...
>
> Changes v1->v2:
> * rebased
> * fixed a few minor niggles spotted in v1 during review
> * use existing signal-common.h rather than creating a new
> header for signal-related functions
>
> Patches still needing review: 3, 4, 5, 7
>
> thanks
> -- PMM
>
> Peter Maydell (9):
> linux-user: Fix coding style nits in qemu.h
> linux-user: Split strace prototypes into strace.h
> linux-user: Split signal-related prototypes into signal-common.h
> linux-user: Split loader-related prototypes into loader.h
> linux-user: Split mmap prototypes into user-mmap.h
> linux-user: Split safe-syscall macro into its own header
> linux-user: Split linux-user internals out of qemu.h
> linux-user: Don't include gdbstub.h in qemu.h
> linux-user: Drop unneeded includes from qemu.h
>
> linux-user/loader.h | 59 +++++
> linux-user/qemu.h | 429 ++-----------------------------
> linux-user/safe-syscall.h | 154 +++++++++++
> linux-user/signal-common.h | 36 +++
> linux-user/strace.h | 38 +++
> linux-user/user-internals.h | 186 ++++++++++++++
> linux-user/user-mmap.h | 34 +++
> gdbstub.c | 2 +-
> linux-user/aarch64/cpu_loop.c | 2 +
> linux-user/aarch64/signal.c | 1 +
> linux-user/alpha/cpu_loop.c | 2 +
> linux-user/alpha/signal.c | 1 +
> linux-user/arm/cpu_loop.c | 2 +
> linux-user/arm/signal.c | 1 +
> linux-user/cris/cpu_loop.c | 2 +
> linux-user/cris/signal.c | 1 +
> linux-user/elfload.c | 3 +
> linux-user/exit.c | 2 +
> linux-user/fd-trans.c | 2 +
> linux-user/flatload.c | 3 +
> linux-user/hexagon/cpu_loop.c | 2 +
> linux-user/hexagon/signal.c | 1 +
> linux-user/hppa/cpu_loop.c | 2 +
> linux-user/hppa/signal.c | 1 +
> linux-user/i386/cpu_loop.c | 3 +
> linux-user/i386/signal.c | 1 +
> linux-user/linuxload.c | 2 +
> linux-user/m68k/cpu_loop.c | 2 +
> linux-user/m68k/signal.c | 1 +
> linux-user/main.c | 5 +
> linux-user/microblaze/cpu_loop.c | 2 +
> linux-user/microblaze/signal.c | 1 +
> linux-user/mips/cpu_loop.c | 2 +
> linux-user/mips/signal.c | 1 +
> linux-user/mmap.c | 2 +
> linux-user/nios2/cpu_loop.c | 2 +
> linux-user/nios2/signal.c | 1 +
> linux-user/openrisc/cpu_loop.c | 2 +
> linux-user/openrisc/signal.c | 1 +
> linux-user/ppc/cpu_loop.c | 2 +
> linux-user/ppc/signal.c | 1 +
> linux-user/riscv/cpu_loop.c | 2 +
> linux-user/riscv/signal.c | 1 +
> linux-user/s390x/cpu_loop.c | 2 +
> linux-user/s390x/signal.c | 1 +
> linux-user/semihost.c | 1 +
> linux-user/sh4/cpu_loop.c | 2 +
> linux-user/sh4/signal.c | 1 +
> linux-user/signal.c | 5 +
> linux-user/sparc/cpu_loop.c | 2 +
> linux-user/sparc/signal.c | 1 +
> linux-user/strace.c | 3 +
> linux-user/syscall.c | 6 +
> linux-user/uaccess.c | 1 +
> linux-user/uname.c | 1 +
> linux-user/vm86.c | 1 +
> linux-user/xtensa/cpu_loop.c | 2 +
> linux-user/xtensa/signal.c | 1 +
> semihosting/arm-compat-semi.c | 2 +-
> target/m68k/m68k-semi.c | 2 +-
> target/nios2/nios2-semi.c | 2 +-
> thunk.c | 1 +
> 62 files changed, 620 insertions(+), 417 deletions(-)
> create mode 100644 linux-user/loader.h
> create mode 100644 linux-user/safe-syscall.h
> create mode 100644 linux-user/strace.h
> create mode 100644 linux-user/user-internals.h
> create mode 100644 linux-user/user-mmap.h
>
Applied to my linux-user-for-6.2 branch.
Thanks,
Laurent
^ permalink raw reply [flat|nested] 24+ messages in thread
end of thread, other threads:[~2021-09-13 19:08 UTC | newest]
Thread overview: 24+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-09-08 15:43 [PATCH v2 0/9] linux-user: split internals out of qemu.h Peter Maydell
2021-09-08 15:43 ` [PATCH v2 1/9] linux-user: Fix coding style nits in qemu.h Peter Maydell
2021-09-12 16:07 ` Richard Henderson
2021-09-08 15:43 ` [PATCH v2 2/9] linux-user: Split strace prototypes into strace.h Peter Maydell
2021-09-12 16:16 ` Richard Henderson
2021-09-08 15:43 ` [PATCH v2 3/9] linux-user: Split signal-related prototypes into signal-common.h Peter Maydell
2021-09-08 15:59 ` Philippe Mathieu-Daudé
2021-09-12 16:16 ` Richard Henderson
2021-09-08 15:44 ` [PATCH v2 4/9] linux-user: Split loader-related prototypes into loader.h Peter Maydell
2021-09-08 16:00 ` Philippe Mathieu-Daudé
2021-09-12 16:17 ` Richard Henderson
2021-09-08 15:44 ` [PATCH v2 5/9] linux-user: Split mmap prototypes into user-mmap.h Peter Maydell
2021-09-08 16:01 ` Philippe Mathieu-Daudé
2021-09-12 16:18 ` Richard Henderson
2021-09-08 15:44 ` [PATCH v2 6/9] linux-user: Split safe-syscall macro into its own header Peter Maydell
2021-09-12 16:23 ` Richard Henderson
2021-09-13 8:20 ` Peter Maydell
2021-09-08 15:44 ` [PATCH v2 7/9] linux-user: Split linux-user internals out of qemu.h Peter Maydell
2021-09-12 16:28 ` Richard Henderson
2021-09-08 15:44 ` [PATCH v2 8/9] linux-user: Don't include gdbstub.h in qemu.h Peter Maydell
2021-09-12 16:35 ` Richard Henderson
2021-09-08 15:44 ` [PATCH v2 9/9] linux-user: Drop unneeded includes from qemu.h Peter Maydell
2021-09-12 16:36 ` Richard Henderson
2021-09-13 19:07 ` [PATCH v2 0/9] linux-user: split internals out of qemu.h Laurent Vivier
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