linux/arch/score/kernel/entry.S, branch v3.9

score: switch to generic sigaltstack

2013-02-03T23:16:15Z

Signed-off-by: Al Viro

score: switch to generic fork/vfork/clone

2012-11-29T04:43:40Z

Signed-off-by: Al Viro

score: switch to generic sys_execve()

2012-10-15T20:12:07Z

Signed-off-by: Al Viro

score: switch to generic kernel_thread()/kernel_execve()

2012-10-15T20:12:06Z

Signed-off-by: Al Viro

score: fix off-by-one index into syscall table

2012-01-23T16:38:49Z

If the provided system call number is equal to __NR_syscalls, the current check will pass and a function pointer just after the system call table may be called, since sys_call_table is an array with total size __NR_syscalls. Whether or not this is a security bug depends on what the compiler puts immediately after the system call table. It's likely that this won't do anything bad because there is an additional NULL check on the syscall entry, but if there happens to be a non-NULL value immediately after the system call table, this may result in local privilege escalation. Signed-off-by: Dan Rosenberg Cc: Cc: Chen Liqin Cc: Lennox Wu Cc: Eugene Teo Cc: Arnd Bergmann Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

score: add old syscall support

2009-08-30T04:33:30Z

score: move save arg5 and arg6 instruction in front of enable_irq

2009-06-22T10:21:15Z

Because enable_irq clobber r8 before arg5 was saved. modified: arch/score/kernel/entry.S Signed-off-by: Chen Liqin Signed-off-by: Arnd Bergmann

score: add generic sys_call_table

2009-06-19T12:10:33Z

This adds back a sys_call_table to the score architecture, which got lost in the conversion to the generic unistd.h file. It's rather worrying that the code got submitted without a system call table, which evidently means that it got zero testing. Since the system call table has a different layout from the old one (which was modeled after the mips-o32 one), I also try to fix the entry.S path to use it. In the modified calling conventions, all system call arguments are passed as registers r4 through r9, instead of r4 through r7 plus stack for the fifth and sixth argument. This matches what other architectures to when they normally pass arguments on the stack. Signed-off-by: Arnd Bergmann

score: update files according to review comments

2009-06-19T09:40:13Z

modified: arch/score/include/asm/cacheflush.h modified: arch/score/include/asm/delay.h modified: arch/score/include/asm/errno.h modified: arch/score/include/asm/pgtable-bits.h modified: arch/score/include/asm/pgtable.h modified: arch/score/include/asm/ptrace.h modified: arch/score/include/asm/unistd.h modified: arch/score/kernel/entry.S modified: arch/score/kernel/process.c modified: arch/score/kernel/ptrace.c modified: arch/score/kernel/signal.c modified: arch/score/kernel/sys_score.c modified: arch/score/kernel/traps.c modified: arch/score/mm/cache.c Signed-off-by: Chen Liqin Signed-off-by: Arnd Bergmann

score: Add support for Sunplus S+core architecture

2009-06-19T09:38:47Z

This is the complete set of new arch Score's files for linux. Score instruction set support 16bits, 32bits and 64bits instruction, Score SOC had been used in game machine and LCD TV. Signed-off-by: Chen Liqin Signed-off-by: Arnd Bergmann