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docs: Roll semihosting option information into qemu-options.hx

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Currently the per-target documentation for those targets that
implement semihosting includes a bit of text that goes into both the
manual and the manpage about options specific to the target.  This
text is redundant with the earlier generic option description of the
semihosting option produced from qemu-options.hx. To avoid having
to create a lot of stub include files to include into the rST
generated qemu.1 manpage, roll target-specific bits of information
into the qemu-options.hx text, so the user doesn't have to look
in two places for this information.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20200228153619.9906-24-peter.maydell@linaro.org
This commit is contained in:
Peter Maydell 2020-02-28 15:36:09 +00:00
parent 705f48cc22
commit 44d79a6bd7
7 changed files with 18 additions and 90 deletions
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10
docs/system/target-arm.rst
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@ -215,13 +215,3 @@ emulation includes the following elements:
A Linux 2.6 test image is available on the QEMU web site. More
information is available in the QEMU mailing-list archive.
The following options are specific to the ARM emulation:
``-semihosting``
Enable semihosting syscall emulation.
On ARM this implements the \"Angel\" interface.
Note that this allows guest direct access to the host filesystem, so
should only be used with trusted guest OS.

18
docs/system/target-arm.texi
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@ -243,21 +243,3 @@ Three on-chip UARTs
A Linux 2.6 test image is available on the QEMU web site. More
information is available in the QEMU mailing-list archive.
@c man begin OPTIONS
The following options are specific to the ARM emulation:
@table @option
@item -semihosting
Enable semihosting syscall emulation.
On ARM this implements the "Angel" interface.
Note that this allows guest direct access to the host filesystem,
so should only be used with trusted guest OS.
@end table
@c man end

11
docs/system/target-m68k.rst
View File

@ -19,14 +19,3 @@ The AN5206 emulation includes the following devices:
- MCF5206 ColdFire V2 Microprocessor.
- Two on-chip UARTs.
The following options are specific to the ColdFire emulation:
``-semihosting``
Enable semihosting syscall emulation.
On M68K this implements the \"ColdFire GDB\" interface used by
libgloss.
Note that this allows guest direct access to the host filesystem, so
should only be used with trusted guest OS.

19
docs/system/target-m68k.texi
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@ -23,22 +23,3 @@ MCF5206 ColdFire V2 Microprocessor.
@item
Two on-chip UARTs.
@end itemize
@c man begin OPTIONS
The following options are specific to the ColdFire emulation:
@table @option
@item -semihosting
Enable semihosting syscall emulation.
On M68K this implements the "ColdFire GDB" interface used by libgloss.
Note that this allows guest direct access to the host filesystem,
so should only be used with trusted guest OS.
@end table
@c man end

12
docs/system/target-xtensa.rst
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@ -25,15 +25,3 @@ The Avnet LX60/LX110/LX200 emulation supports:
- 16550 UART
- OpenCores 10/100 Mbps Ethernet MAC
The following options are specific to the Xtensa emulation:
``-semihosting``
Enable semihosting syscall emulation.
Xtensa semihosting provides basic file IO calls, such as
open/read/write/seek/select. Tensilica baremetal libc for ISS and
linux platform \"sim\" use this interface.
Note that this allows guest direct access to the host filesystem, so
should only be used with trusted guest OS.

20
docs/system/target-xtensa.texi
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@ -33,23 +33,3 @@ A range of Xtensa CPUs, default is the DC232B
@item
OpenCores 10/100 Mbps Ethernet MAC
@end itemize
@c man begin OPTIONS
The following options are specific to the Xtensa emulation:
@table @option
@item -semihosting
Enable semihosting syscall emulation.
Xtensa semihosting provides basic file IO calls, such as open/read/write/seek/select.
Tensilica baremetal libc for ISS and linux platform "sim" use this interface.
Note that this allows guest direct access to the host filesystem,
so should only be used with trusted guest OS.
@end table
@c man end

18
qemu-options.hx
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@ -4116,6 +4116,12 @@ STEXI
@item -semihosting
@findex -semihosting
Enable semihosting mode (ARM, M68K, Xtensa, MIPS, Nios II only).
Note that this allows guest direct access to the host filesystem, so
should only be used with a trusted guest OS.
See the -semihosting-config option documentation for further information
about the facilities this enables.
ETEXI
DEF("semihosting-config", HAS_ARG, QEMU_OPTION_semihosting_config,
"-semihosting-config [enable=on|off][,target=native|gdb|auto][,chardev=id][,arg=str[,...]]\n" \
@ -4126,6 +4132,18 @@ STEXI
@item -semihosting-config [enable=on|off][,target=native|gdb|auto][,chardev=id][,arg=str[,...]]
@findex -semihosting-config
Enable and configure semihosting (ARM, M68K, Xtensa, MIPS, Nios II only).
Note that this allows guest direct access to the host filesystem, so
should only be used with a trusted guest OS.
On Arm this implements the standard semihosting API, version 2.0.
On M68K this implements the "ColdFire GDB" interface used by libgloss.
Xtensa semihosting provides basic file IO calls, such as
open/read/write/seek/select. Tensilica baremetal libc for ISS and
linux platform "sim" use this interface.
@table @option
@item target=@code{native|gdb|auto}
Defines where the semihosting calls will be addressed, to QEMU (@code{native})