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a59d31a1eb
Add new "arg" sub-argument to the --semihosting-config allowing the user to pass multiple input arguments separately. It is required for example by UHI semihosting to construct argc and argv. Also, update ARM semihosting to support new option (at the moment it is the only target which cares about arguments). If the semihosting is enabled and no semihosting args have been specified, then fall back to -kernel/-append. The -append string is split on whitespace before initializing semihosting.argv[1..n]; this is different from what QEMU MIPS machines' pseudo-bootloaders do (i.e. argv[1] contains the whole -append), but is more intuitive from UHI user's point of view and Linux kernel just does not care as it concatenates argv[1..n] into single cmdline string anyway. Signed-off-by: Leon Alrae <leon.alrae@imgtec.com> Message-id: 1434643256-16858-3-git-send-email-leon.alrae@imgtec.com Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
63 lines
1.5 KiB
C
63 lines
1.5 KiB
C
/*
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* Semihosting support
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*
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* Copyright (c) 2015 Imagination Technologies
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef SEMIHOST_H
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#define SEMIHOST_H
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typedef enum SemihostingTarget {
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SEMIHOSTING_TARGET_AUTO = 0,
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SEMIHOSTING_TARGET_NATIVE,
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SEMIHOSTING_TARGET_GDB
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} SemihostingTarget;
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#ifdef CONFIG_USER_ONLY
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static inline bool semihosting_enabled(void)
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{
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return true;
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}
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static inline SemihostingTarget semihosting_get_target(void)
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{
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return SEMIHOSTING_TARGET_AUTO;
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}
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static inline const char *semihosting_get_arg(int i)
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{
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return NULL;
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}
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static inline int semihosting_get_argc(void)
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{
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return 0;
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}
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static inline const char *semihosting_get_cmdline(void)
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{
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return NULL;
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}
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#else
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bool semihosting_enabled(void);
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SemihostingTarget semihosting_get_target(void);
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const char *semihosting_get_arg(int i);
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int semihosting_get_argc(void);
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const char *semihosting_get_cmdline(void);
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#endif
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#endif
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