3 commits

Author	SHA1	Message	Date
Leon Alrae	26e7e982b2	target-mips: fix resource leak reported by Coverity ... 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>	2015-07-15 14:07:25 +01:00
Leon Alrae	2c44b19c19	target-mips: convert host to MIPS errno values when required ... 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>	2015-06-26 09:08:50 +01:00
Leon Alrae	3b3c1694cf	target-mips: add Unified Hosting Interface (UHI) support ... 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>	2015-06-26 09:08:50 +01:00