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2016-01-23mips: Clean up includesPeter Maydell
Clean up includes so that osdep.h is included first and headers which it implies are not included manually. This commit was created with scripts/clean-includes. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Leon Alrae <leon.alrae@imgtec.com> Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
2015-07-15target-mips: fix resource leak reported by CoverityLeon Alrae
UHI assert and link operations call lock_user_string() twice to obtain two strings pointed by gpr[4] and gpr[5]. If the second lock_user_string() fails, then the first one won't get freed. Fix this by introducing another macro responsible for obtaining two strings and handling allocation failure. Signed-off-by: Leon Alrae <leon.alrae@imgtec.com> Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
2015-06-26target-mips: convert host to MIPS errno values when requiredLeon Alrae
Convert only errno values which can be returned by system calls in mips-semi.c and are not generic to all archs. Signed-off-by: Leon Alrae <leon.alrae@imgtec.com> Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
2015-06-26target-mips: add Unified Hosting Interface (UHI) supportLeon Alrae
Add UHI semihosting support for MIPS. QEMU run with "-semihosting" option will alter the behaviour of SDBBP 1 instruction -- UHI operation will be called instead of generating a debug exception. Also tweak Malta's pseudo-bootloader. On CPU reset the $4 register is set to -1 if semihosting arguments are passed to indicate that the UHI operations should be used to obtain input arguments. Signed-off-by: Leon Alrae <leon.alrae@imgtec.com> Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>