linux.git/arch/mips/kernel/traps.c, branch v2.6.20

[MIPS] Use conditional traps for BUG_ON on MIPS II and better.

2006-11-30T01:14:50+00:00

This shaves of around 4kB and a few cycles for the average kernel that
has CONFIG_BUG enabled.

Signed-off-by: Ralf Baechle

[MIPS] Work around bogus gcc warnings.

2006-11-30T01:14:47+00:00

Signed-off-by: Ralf Baechle

[MIPS] Fast path for rdhwr emulation for TLS

2006-11-30T01:14:44+00:00

Add special short path for emulationg RDHWR which is used to support TLS.
Add an extra prologue for cpu_has_vtag_icache case.

Signed-off-by: Atsushi Nemoto 
Signed-off-by: Ralf Baechle

[MIPS] Fix warning of printk format in mips_srs_init()

2006-10-31T20:13:21+00:00

arch/mips/kernel/traps.c:1115: warning: int format, long unsigned int arg (arg 2)

Signed-off-by: Yoichi Yuasa 
Signed-off-by: Ralf Baechle

[MIPS] Make sure cpu_has_fpu is used only in atomic context

2006-10-09T22:20:48+00:00

Make sure cpu_has_fpu (which uses smp_processor_id()) is used only in
atomic context.

Signed-off-by: Atsushi Nemoto 
Signed-off-by: Ralf Baechle

[MIPS] Make unwind_stack() can dig into interrupted context

2006-10-01T22:16:59+00:00

If the PC was ret_from_irq or ret_from_exception, there will be no
more normal stackframe.  Instead of stopping the unwinding, use PC and
RA saved by an exception handler to continue unwinding into the
interrupted context.  This also simplifies the CONFIG_STACKTRACE code.

Signed-off-by: Atsushi Nemoto 
Signed-off-by: Ralf Baechle

[MIPS] lockdep: Add STACKTRACE_SUPPORT and enable LOCKDEP_SUPPORT

2006-10-01T22:16:57+00:00

Implement stacktrace interface by using unwind_stack() and enable lockdep
support in Kconfig.

Signed-off-by: Atsushi Nemoto 
Signed-off-by: Ralf Baechle

[MIPS] Make prepare_frametrace() not clobber v0

2006-09-27T12:37:37+00:00

Since lmo commit 323a380bf9e1a1679a774a2b053e3c1f2aa3f179 ("Simplify
dump_stack()") made prepare_frametrace() always inlined, using $2 (v0)
in __asm__ is not safe anymore.  We can use $1 (at) instead.  Also we
should use "dla" instead of "la" for 64-bit kernel.

Signed-off-by: Atsushi Nemoto 
Signed-off-by: Ralf Baechle

[MIPS] Improve unwind_stack()

2006-09-27T12:37:29+00:00

This patch allows unwind_stack() to return ra for leaf function.
But it tries to detects cases where get_frame_info() wrongly
consider nested function as a leaf one.

It also pass 'unsinged long *sp' instead of 'unsigned long **sp'
as second parameter. The code looks cleaner.

Signed-off-by: Franck Bui-Huu 
Signed-off-by: Ralf Baechle

[MIPS] Simplify dump_stack()

2006-09-27T12:37:28+00:00

Make dump_stack() code not depend on CONFIG_KALLSYMS.

It also make prepare_frametrace() always inlined to get
less false entries reported by show_raw_backtrace().

Signed-off-by: Franck Bui-Huu 
Signed-off-by: Ralf Baechle