diff options
Diffstat (limited to 'ANDROID_3.4.5/arch/microblaze/kernel/mcount.S')
| -rw-r--r-- | ANDROID_3.4.5/arch/microblaze/kernel/mcount.S | 170 |
1 files changed, 0 insertions, 170 deletions
diff --git a/ANDROID_3.4.5/arch/microblaze/kernel/mcount.S b/ANDROID_3.4.5/arch/microblaze/kernel/mcount.S deleted file mode 100644 index e7eaa7a8..00000000 --- a/ANDROID_3.4.5/arch/microblaze/kernel/mcount.S +++ /dev/null @@ -1,170 +0,0 @@ -/* - * Low-level ftrace handling - * - * Copyright (C) 2009 Michal Simek <monstr@monstr.eu> - * Copyright (C) 2009 PetaLogix - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - */ - -#include <linux/linkage.h> - -#define NOALIGN_ENTRY(name) .globl name; name: - -/* FIXME MS: I think that I don't need to save all regs */ -#define SAVE_REGS \ - addik r1, r1, -120; \ - swi r2, r1, 4; \ - swi r3, r1, 8; \ - swi r4, r1, 12; \ - swi r5, r1, 116; \ - swi r6, r1, 16; \ - swi r7, r1, 20; \ - swi r8, r1, 24; \ - swi r9, r1, 28; \ - swi r10, r1, 32; \ - swi r11, r1, 36; \ - swi r12, r1, 40; \ - swi r13, r1, 44; \ - swi r14, r1, 48; \ - swi r16, r1, 52; \ - swi r17, r1, 56; \ - swi r18, r1, 60; \ - swi r19, r1, 64; \ - swi r20, r1, 68; \ - swi r21, r1, 72; \ - swi r22, r1, 76; \ - swi r23, r1, 80; \ - swi r24, r1, 84; \ - swi r25, r1, 88; \ - swi r26, r1, 92; \ - swi r27, r1, 96; \ - swi r28, r1, 100; \ - swi r29, r1, 104; \ - swi r30, r1, 108; \ - swi r31, r1, 112; - -#define RESTORE_REGS \ - lwi r2, r1, 4; \ - lwi r3, r1, 8; \ - lwi r4, r1, 12; \ - lwi r5, r1, 116; \ - lwi r6, r1, 16; \ - lwi r7, r1, 20; \ - lwi r8, r1, 24; \ - lwi r9, r1, 28; \ - lwi r10, r1, 32; \ - lwi r11, r1, 36; \ - lwi r12, r1, 40; \ - lwi r13, r1, 44; \ - lwi r14, r1, 48; \ - lwi r16, r1, 52; \ - lwi r17, r1, 56; \ - lwi r18, r1, 60; \ - lwi r19, r1, 64; \ - lwi r20, r1, 68; \ - lwi r21, r1, 72; \ - lwi r22, r1, 76; \ - lwi r23, r1, 80; \ - lwi r24, r1, 84; \ - lwi r25, r1, 88; \ - lwi r26, r1, 92; \ - lwi r27, r1, 96; \ - lwi r28, r1, 100; \ - lwi r29, r1, 104; \ - lwi r30, r1, 108; \ - lwi r31, r1, 112; \ - addik r1, r1, 120; - -ENTRY(ftrace_stub) - rtsd r15, 8; - nop; - -ENTRY(_mcount) -#ifdef CONFIG_DYNAMIC_FTRACE -ENTRY(ftrace_caller) - /* MS: It is just barrier which is removed from C code */ - rtsd r15, 8 - nop -#endif /* CONFIG_DYNAMIC_FTRACE */ - SAVE_REGS - swi r15, r1, 0; - /* MS: HAVE_FUNCTION_TRACE_MCOUNT_TEST begin of checking */ - lwi r5, r0, function_trace_stop; - bneid r5, end; - nop; - /* MS: HAVE_FUNCTION_TRACE_MCOUNT_TEST end of checking */ -#ifdef CONFIG_FUNCTION_GRAPH_TRACER -#ifndef CONFIG_DYNAMIC_FTRACE - lwi r5, r0, ftrace_graph_return; - addik r6, r0, ftrace_stub; /* asm implementation */ - cmpu r5, r5, r6; /* ftrace_graph_return != ftrace_stub */ - beqid r5, end_graph_tracer; - nop; - - lwi r6, r0, ftrace_graph_entry; - addik r5, r0, ftrace_graph_entry_stub; /* implemented in C */ - cmpu r5, r5, r6; /* ftrace_graph_entry != ftrace_graph_entry_stub */ - beqid r5, end_graph_tracer; - nop; -#else /* CONFIG_DYNAMIC_FTRACE */ -NOALIGN_ENTRY(ftrace_call_graph) - /* MS: jump over graph function - replaced from C code */ - bri end_graph_tracer -#endif /* CONFIG_DYNAMIC_FTRACE */ - addik r5, r1, 120; /* MS: load parent addr */ - addik r6, r15, 0; /* MS: load current function addr */ - bralid r15, prepare_ftrace_return; - nop; - /* MS: graph was taken that's why - can jump over function trace */ - brid end; - nop; -end_graph_tracer: -#endif /* CONFIG_FUNCTION_GRAPH_TRACER */ -#ifndef CONFIG_DYNAMIC_FTRACE - /* MS: test function trace if is taken or not */ - lwi r20, r0, ftrace_trace_function; - addik r6, r0, ftrace_stub; - cmpu r5, r20, r6; /* ftrace_trace_function != ftrace_stub */ - beqid r5, end; /* MS: not taken -> jump over */ - nop; -#else /* CONFIG_DYNAMIC_FTRACE */ -NOALIGN_ENTRY(ftrace_call) -/* instruction for setup imm FUNC_part1, addik r20, r0, FUNC_part2 */ - nop - nop -#endif /* CONFIG_DYNAMIC_FTRACE */ -/* static normal trace */ - lwi r6, r1, 120; /* MS: load parent addr */ - addik r5, r15, 0; /* MS: load current function addr */ - /* MS: here is dependency on previous code */ - brald r15, r20; /* MS: jump to ftrace handler */ - nop; -end: - lwi r15, r1, 0; - RESTORE_REGS - - rtsd r15, 8; /* MS: jump back */ - nop; - -#ifdef CONFIG_FUNCTION_GRAPH_TRACER -ENTRY(return_to_handler) - nop; /* MS: just barrier for rtsd r15, 8 */ - nop; - SAVE_REGS - swi r15, r1, 0; - - /* MS: find out returning address */ - bralid r15, ftrace_return_to_handler; - nop; - - /* MS: return value from ftrace_return_to_handler is my returning addr - * must be before restore regs because I have to restore r3 content */ - addik r15, r3, 0; - RESTORE_REGS - - rtsd r15, 8; /* MS: jump back */ - nop; -#endif /* CONFIG_FUNCTION_TRACER */ |