linux-user: Rename TARGET_QEMU_ESIGRETURN to QEMU_ESIGRETURN

This value is fully internal to qemu, and so is not a TARGET define.

Reviewed-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Philippe Mat

linux-user: Rename TARGET_QEMU_ESIGRETURN to QEMU_ESIGRETURN

This value is fully internal to qemu, and so is not a TARGET define.

Reviewed-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

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linux-user: Rename TARGET_ERESTARTSYS to QEMU_ERESTARTSYS

This value is fully internal to qemu, and so is not a TARGET define.
We use this as an extra marker for both host and target errno.

Reviewe

linux-user: Rename TARGET_ERESTARTSYS to QEMU_ERESTARTSYS

This value is fully internal to qemu, and so is not a TARGET define.
We use this as an extra marker for both host and target errno.

Reviewed-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

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target/mips: Make mips_cpu_tlb_fill sysemu only

The fallback code in cpu_loop_exit_sigsegv is sufficient
for mips linux-user.

This means we can remove tcg/user/tlb_helper.c entirely.
Remove the cod

target/mips: Make mips_cpu_tlb_fill sysemu only

The fallback code in cpu_loop_exit_sigsegv is sufficient
for mips linux-user.

This means we can remove tcg/user/tlb_helper.c entirely.
Remove the code from cpu_loop that raised SIGSEGV.

Reviewed-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

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linux-user/mips: Implement setup_sigtramp

Create and record the two signal trampolines.

Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@lin

linux-user/mips: Implement setup_sigtramp

Create and record the two signal trampolines.

Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20210929130553.121567-16-richard.henderson@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

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linux-user/mips: Tidy install_sigtramp

The return value is constant 0, and unused as well -- change to void.
Drop inline marker. Change tramp type to uint32_t* for clarity.

Reviewed-by: Philippe M

linux-user/mips: Tidy install_sigtramp

The return value is constant 0, and unused as well -- change to void.
Drop inline marker. Change tramp type to uint32_t* for clarity.

Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20210929130553.121567-15-richard.henderson@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

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linux-user: Split linux-user internals out of qemu.h

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 a

linux-user: Split linux-user internals out of qemu.h

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>
Message-Id: <20210908154405.15417-8-peter.maydell@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

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linux-user: Split signal-related prototypes into signal-common.h

Split the signal related prototypes into the existing header file
signal-common.h, and include it in those places that now require it

linux-user: Split signal-related prototypes into signal-common.h

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>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20210908154405.15417-4-peter.maydell@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

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linux-user: update syscall.tbl to Linux v5.13

Updated running scripts/update-syscalltbl.sh

Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20210708215756.268805-4-laurent@vivier.eu>

linux-user: update syscall.tbl to Linux v5.13

Updated running scripts/update-syscalltbl.sh

Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20210708215756.268805-4-laurent@vivier.eu>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

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linux-user, mips: update syscall-args-o32.c.inc to Linux v5.13

Updated running scripts/update-mips-syscall-args.sh

scripts/update-mips-syscall-args.sh has been updated to reflect
file directory cha

linux-user, mips: update syscall-args-o32.c.inc to Linux v5.13

Updated running scripts/update-mips-syscall-args.sh

scripts/update-mips-syscall-args.sh has been updated to reflect
file directory changes in strace repository.

Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20210708215756.268805-3-laurent@vivier.eu>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

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linux-user/mips: Move errno definitions to 'target_errno_defs.h'

Suggested-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Richard H

linux-user/mips: Move errno definitions to 'target_errno_defs.h'

Suggested-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20210708170550.1846343-7-f4bug@amsat.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

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linux-user: Extract target errno to 'target_errno_defs.h'

We want to access the target errno indepently of the rest of the
linux-user code. Move the header containing the generic errno
definitions (

linux-user: Extract target errno to 'target_errno_defs.h'

We want to access the target errno indepently of the rest of the
linux-user code. Move the header containing the generic errno
definitions ('errno_defs.h') to 'generic/target_errno_defs.h',
create a new 'target_errno_defs.h' in each target which itself
includes 'generic/target_errno_defs.h'.

Suggested-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20210708170550.1846343-4-f4bug@amsat.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

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linux-user/mips: Handle TARGET_EWOULDBLOCK as TARGET_EAGAIN

Linux kernel defines EWOULDBLOCK as EAGAIN (since before v2.6.12-rc2).

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-b

linux-user/mips: Handle TARGET_EWOULDBLOCK as TARGET_EAGAIN

Linux kernel defines EWOULDBLOCK as EAGAIN (since before v2.6.12-rc2).

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20210704183755.655002-4-f4bug@amsat.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

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