diff options
| -rw-r--r-- | iprofile.s | 791 | ||||
| -rw-r--r-- | istartup.s | 23 | ||||
| -rw-r--r-- | itrace.s | 419 |
3 files changed, 1221 insertions, 12 deletions
diff --git a/iprofile.s b/iprofile.s new file mode 100644 index 0000000..94c174e --- /dev/null +++ b/iprofile.s @@ -0,0 +1,791 @@ + +#undef DEBUG_PROFILER + +#define ALLOCATION_PROFILE +#define MODULE_NAMES + +#define d0 %eax +#define d1 %ebx +#define a0 %ecx +#define a1 %edx +#define a2 %ebp +#define a3 %esi +#define a4 %edi +#define sp %esp + +#if defined(_WINDOWS_) +# define align(n) .align (1<<n) +#else +# define align(n) .align n +#endif + + .global init_profiler + .global profile_r + .global profile_l + .global profile_l2 + .global profile_n + .global profile_n2 + .global profile_s + .global profile_s2 + .global profile_t + .global write_profile_information + .global write_profile_stack + + .global @allocate_memory + .global __STRING__ + .global openF + .global closeF + .global writeFC + .global writeFI + .global print_error + .global @ab_stack_size + .global @ew_print_string + .global @ew_print_char + .global @create_profile_file_name + .global @stack_trace_depth + +#define next 0 +#define time_hi 4 +#define time_lo 8 +#define n_profiler_calls 12 +#define n_strict_calls 16 +#define n_lazy_calls 20 +#define n_curried_calls 24 +#define n_bytes_allocated 28 +#define name 32 +#define FunctionProfile 36 + + .text +profile_t: + push d0 + push a1 + rdtsc + + push a0 + mov profile_stack_pointer,a0 + + push d1 + mov -4(a0),d1 + + sub $4,a0 + mov d1,global_last_tail_call + + mov a0,profile_stack_pointer + + sub global_time_lo,d0 + sbb global_time_hi,a1 + + add d0,time_lo(d1) + adc a1,time_hi(d1) + + incl n_profiler_calls(d1) + +#ifdef ALLOCATION_PROFILE + mov end_heap,a0 + sub a4,a0 + mov global_n_bytes_free,d0 + add $32,a0 + sub a0,d0 + mov a0,global_n_bytes_free + add d0,n_bytes_allocated(d1) +#endif + + pop d1 + pop a0 + + rdtsc + mov a1,global_time_hi + pop a1 + mov d0,global_time_lo + pop d0 + ret + +profile_r: + push d0 + push a1 + rdtsc + + push a0 + mov profile_stack_pointer,a0 + + push d1 + mov -4(a0),d1 + + sub $4,a0 + movl $0,global_last_tail_call + + mov a0,profile_stack_pointer + + sub global_time_lo,d0 + sbb global_time_hi,a1 + + add d0,time_lo(d1) + adc a1,time_hi(d1) + + incl n_profiler_calls(d1) + +#ifdef ALLOCATION_PROFILE + mov end_heap,a0 + sub a4,a0 + mov global_n_bytes_free,d0 + add $32,a0 + sub a0,d0 + mov a0,global_n_bytes_free + add d0,n_bytes_allocated(d1) +#endif + + pop d1 + pop a0 + + rdtsc + mov a1,global_time_hi + pop a1 + mov d0,global_time_lo + pop d0 + ret + +profile_l: + push d0 + push a1 + rdtsc + + push d1 + mov (a2),d1 + + test d1,d1 + je allocate_function_profile_record_l +allocate_function_profile_record_lr: + push a0 + + mov global_last_tail_call,a2 + mov profile_stack_pointer,a0 + + test a2,a2 + jne use_tail_calling_function_l + + mov -4(a0),a2 +use_tail_calling_function_lr: + +#ifdef DEBUG_PROFILER + testl (d1),d1 +#endif + mov d1,(a0) + add $4,a0 + + incl n_curried_calls(d1) + jmp profile_n_ + +allocate_function_profile_record_l: + call allocate_function_profile_record + jmp allocate_function_profile_record_lr + +use_tail_calling_function_l: + movl $0,global_last_tail_call + jmp use_tail_calling_function_lr + +profile_l2: + push d0 + push a1 + rdtsc + + push d1 + mov (a2),d1 + + test d1,d1 + je allocate_function_profile_record_l2 +allocate_function_profile_record_l2r: + push a0 + + mov global_last_tail_call,a2 + mov profile_stack_pointer,a0 + + test a2,a2 + jne use_tail_calling_function_l2 + + mov -4(a0),a2 +use_tail_calling_function_l2r: + +#ifdef DEBUG_PROFILER + testl (d1),d1 +#endif + mov d1,(a0) + mov d1,4(a0) + add $8,a0 + + incl n_curried_calls(d1) + jmp profile_n_ + +allocate_function_profile_record_l2: + call allocate_function_profile_record + jmp allocate_function_profile_record_l2r + +use_tail_calling_function_l2: + movl $0,global_last_tail_call + jmp use_tail_calling_function_l2r + +profile_n: + push d0 + push a1 + rdtsc + + push d1 + mov (a2),d1 + + test d1,d1 + je allocate_function_profile_record_n +allocate_function_profile_record_nr: + push a0 + + mov global_last_tail_call,a2 + mov profile_stack_pointer,a0 + + test a2,a2 + jne use_tail_calling_function_n + + mov -4(a0),a2 +use_tail_calling_function_nr: + +#ifdef DEBUG_PROFILER + testl (d1),d1 +#endif + mov d1,(a0) + add $4,a0 + + incl n_lazy_calls(d1) + jmp profile_n_ + +allocate_function_profile_record_n: + call allocate_function_profile_record + jmp allocate_function_profile_record_nr + +use_tail_calling_function_n: + movl $0,global_last_tail_call + jmp use_tail_calling_function_nr + +profile_n2: + push d0 + push a1 + rdtsc + + push d1 + mov (a2),d1 + + test d1,d1 + je allocate_function_profile_record_n2 +allocate_function_profile_record_n2r: + push a0 + + mov global_last_tail_call,a2 + mov profile_stack_pointer,a0 + + test a2,a2 + jne use_tail_calling_function_n2 + + mov -4(a0),a2 +use_tail_calling_function_n2r: + +#ifdef DEBUG_PROFILER + testl (d1),d1 +#endif + mov d1,(a0) + mov d1,4(a0) + add $8,a0 + + incl n_lazy_calls(d1) + jmp profile_n_ + +allocate_function_profile_record_n2: + call allocate_function_profile_record + jmp allocate_function_profile_record_n2r + +use_tail_calling_function_n2: + movl $0,global_last_tail_call + jmp use_tail_calling_function_n2r + +profile_s2: + push d0 + push a1 + rdtsc + + push d1 + mov (a2),d1 + + test d1,d1 + je allocate_function_profile_record_s2 +allocate_function_profile_record_s2r: + push a0 + + mov global_last_tail_call,a2 + mov profile_stack_pointer,a0 + + test a2,a2 + jne use_tail_calling_function_s2 + + mov -4(a0),a2 +use_tail_calling_function_s2r: + +#ifdef DEBUG_PROFILER + testl (d1),d1 +#endif + movl d1,(a0) + movl d1,4(a0) + add $8,a0 + jmp profile_s_ + +allocate_function_profile_record_s2: + call allocate_function_profile_record + jmp allocate_function_profile_record_s2r + +use_tail_calling_function_s2: + movl $0,global_last_tail_call + jmp use_tail_calling_function_s2r + +profile_s: + push d0 + push a1 + rdtsc + + push d1 + movl (a2),d1 + + test d1,d1 + je allocate_function_profile_record_s +allocate_function_profile_record_sr: + push a0 + + mov global_last_tail_call,a2 + mov profile_stack_pointer,a0 + + test a2,a2 + jne use_tail_calling_function_s + + mov -4(a0),a2 +use_tail_calling_function_sr: + +#ifdef DEBUG_PROFILER + testl (d1),d1 +#endif + movl d1,(a0) + add $4,a0 + +profile_s_: + incl n_strict_calls(d1) + +profile_n_: + mov a0,profile_stack_pointer + + sub global_time_lo,d0 + sbb global_time_hi,a1 + + add d0,time_lo(a2) + adc a1,time_hi(a2) + + incl n_profiler_calls(d1) + +#ifdef ALLOCATION_PROFILE + mov end_heap,a0 + sub a4,a0 + mov global_n_bytes_free,d0 + add $32,a0 + sub a0,d0 + mov a0,global_n_bytes_free + add d0,n_bytes_allocated(a2) +#endif + + pop a0 + pop d1 + + rdtsc + mov a1,global_time_hi + pop a1 + mov d0,global_time_lo + pop d0 + ret + +allocate_function_profile_record_s: + call allocate_function_profile_record + jmp allocate_function_profile_record_sr + +use_tail_calling_function_s: + movl $0,global_last_tail_call + jmp use_tail_calling_function_sr + + +/ argument: a2: function name adress-4 +/ result: d1: function profile record adress + +allocate_function_profile_record: + push d0 + mov global_n_free_records_in_block,d0 + mov global_last_allocated_block,d1 + + test d0,d0 + jne no_alloc + + push d1 + push a0 + push a1 + + pushl $128*FunctionProfile + call @allocate_memory + add $4,sp + + test d0,d0 + + pop a1 + pop a0 + pop d1 + + je no_memory + + mov d0,d1 + mov $128,d0 + mov d1,global_last_allocated_block + +no_alloc: + dec d0 + mov d0,global_n_free_records_in_block + lea FunctionProfile(d1),d0 + mov d0,global_last_allocated_block + + xor d0,d0 + mov d0,time_hi(d1) + mov d0,time_lo(d1) + mov d0,n_profiler_calls(d1) + mov d0,n_strict_calls(d1) + mov d0,n_lazy_calls(d1) + mov d0,n_curried_calls(d1) + mov d0,n_bytes_allocated(d1) + + mov global_profile_records,d0 + mov a2,name(d1) + + mov d0,next(d1) + mov d1,global_profile_records + + mov d1,(a2) + pop d0 + ret + +no_memory: + movl $not_enough_memory_for_profiler,a2 + pop d0 + jmp print_error + +write_profile_information: + pushl $profile_file_name + call @create_profile_file_name + addl $4,sp + + mov $1,d0 + mov $profile_file_name,a0 + call openF + + pop a0 + test d1,d1 + je cannot_open + + mov global_profile_records,a2 + +write_profile_lp: + test a2,a2 + je end_list + + mov name(a2),a1 + push a2 + +#ifdef MODULE_NAMES + push a1 + + movl -4(a1),a1 + movl (a1),d1 + addl $4,a1 + +write_module_name_lp: + subl $1,d1 + jc end_module_name + + pushl d1 + movzbl (a1),d1 + pushl a1 + + pushl $l0 + pushl a0 + jmp writeFC +l0: + popl a1 + movl d0,a0 + movl d1,d0 + popl d1 + addl $1,a1 + jmp write_module_name_lp + +end_module_name: + mov $' ',d1 + push $l00 + push a0 + jmp writeFC +l00: mov d0,a0 + mov d1,d0 + + pop a1 +#endif + + add $3,a1 + +write_function_name_lp: + movzbl 1(a1),d1 + add $1,a1 + + test d1,d1 + je end_function_name + + push a1 + + push $l1 + push a0 + jmp writeFC +l1: mov d0,a0 + mov d1,d0 + + pop a1 + jmp write_function_name_lp + +end_function_name: + mov $' ',d1 + push $l2 + push a0 + jmp writeFC +l2: mov d0,a0 + mov d1,d0 + + mov (sp),d1 + mov n_strict_calls(d1),d1 + call writeFI_space + + mov (sp),d1 + mov n_lazy_calls(d1),d1 + call writeFI_space + + mov (sp),d1 + mov n_curried_calls(d1),d1 + call writeFI_space + + mov (sp),d1 + mov n_profiler_calls(d1),d1 + call writeFI_space + + mov (sp),d1 + mov n_bytes_allocated(d1),d1 + call writeFI_space + + mov (sp),d1 + mov time_hi(d1),d1 + call writeFI_space + + mov (sp),d1 + mov time_lo(d1),d1 + + pushl $l3 + push a0 + jmp writeFI +l3: mov d0,a0 + mov d1,d0 + + mov $10,d1 + pushl $l4 + push a0 + jmp writeFC +l4: mov d0,a0 + mov d1,d0 + + pop a2 + mov next(a2),a2 + jmp write_profile_lp + +writeFI_space: + pushl $l5 + push a0 + jmp writeFI +l5: mov d0,a0 + mov d1,d0 + + push $l6 + push a0 + mov $' ',d1 + jmp writeFC +l6: mov d0,a0 + mov d1,d0 + ret + +end_list: + mov d0,d1 + call closeF + +cannot_open: + ret + +write_profile_stack: + mov profile_stack_pointer,d0 + + test d0,d0 + je stack_not_initialised + + push d0 + + push $stack_trace_string + call @ew_print_string + add $4,sp + + pop d0 + +/ mov $12,a2 + movl @stack_trace_depth,a2 +write_functions_on_stack: + mov -4(d0),d1 + sub $4,d0 + + test d1,d1 + je end_profile_stack + + push d0 + mov name(d1),a0 + + push a2 + add $4,a0 + + push a0 + call @ew_print_string + add $4,sp + + pushl $10 + call @ew_print_char + add $4,sp + + pop a2 + pop d0 + + sub $1,a2 + jne write_functions_on_stack + +end_profile_stack: +stack_not_initialised: + ret + +init_profiler: + pushfl + movl $0x200000,%eax + pop %ebx + xor %ebx,%eax + push %eax + popfl + pushfl + pop %eax + xor %ebx,%eax + jz no_tsc_error + + movl $1,%eax + cpuid + andl $16,%edx + jz no_tsc_error + + pushl @ab_stack_size + call @allocate_memory + add $4,sp + + test d0,d0 + je init_profiler_error + + push d0 + + mov $start_string,a2 + call allocate_function_profile_record + + pop a1 + + mov d1,4(a1) + movl $0,(a1) + add $8,a1 + mov a1,profile_stack_pointer + movl $0,global_last_tail_call + + mov end_heap,a1 + sub a4,a1 + add $32,a1 + mov a1,global_n_bytes_free + + rdtsc + mov a1,global_time_hi + mov d0,global_time_lo + ret + +no_tsc_error: + movl $0,profile_stack_pointer + movl $no_tsc_error_string,a2 + jmp print_error + +init_profiler_error: + movl $0,profile_stack_pointer + movl $not_enough_memory_for_profile_stack,a2 + jmp print_error + + .data + align (2) + +global_n_free_records_in_block: .long 0 +/ 0 n free records in block +global_last_allocated_block: .long 0 +/ 4 latest allocated block +global_profile_records: .long 0 +/ 8 profile record list +global_time_hi: .long 0 +/ 12 clock +global_time_lo: .long 0 +global_last_tail_call: .long 0 +/ last tail calling function +global_n_bytes_free: .long 0 + +profile_file_name: + .long __STRING__+2 + .long 0 + .long 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 + .long 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 + .long 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 + .long 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 + .long 0 +@stack_trace_depth: + .long 12 + align (2) +#ifdef MODULE_NAMES +# if 0 +/ m_system also defined in cgistartup.s +m_system: + .long 6 + .ascii "System" + .byte 0 + .byte 0 +# endif + .long m_system +#endif +start_string: + .long 0 + .asciz "start" + align (2) +no_tsc_error_string: + .ascii "cannot profile because this processor does not have a time stamp counter" + .byte 10 + .byte 0 +not_enough_memory_for_profile_stack: + .ascii "not enough memory for profile stack" + .byte 10 + .byte 0 +not_enough_memory_for_profiler: + .ascii "not enough memory for profiler" + .byte 10 + .byte 0 +stack_trace_string: + .ascii "Stack trace:" + .byte 10 + .byte 0 + + align (2) @@ -3,12 +3,6 @@ / Author: John van Groningen / Machine: Intel 386 -#ifdef _WINDOWS_ -# define WRITE_HEAP -#else -# undef WRITE_HEAP -#endif - #define K6_0 0 #define d0 %eax @@ -41,6 +35,8 @@ #define SHARE_CHAR_INT #define MY_ITOS #define FINALIZERS +#define STACK_OVERFLOW_EXCEPTION_HANDLER +#define WRITE_HEAP #undef MEASURE_GC #undef DEBUG #undef PREFETCH2 @@ -161,12 +157,15 @@ .comm heap_end_write_heap,4 .comm d3_flag_write_heap,4 .comm heap2_begin_and_end,8 -#endif +#endif -#if 1 +#ifdef STACK_OVERFLOW_EXCEPTION_HANDLER .comm a_stack_guard_page,4 #endif + .globl profile_stack_pointer + .comm profile_stack_pointer,4 + .data align (2) @@ -495,7 +494,7 @@ start_address: .globl write_profile_information,write_profile_stack #endif .globl __driver - + / from system.abc: .global INT .global CHAR @@ -730,7 +729,7 @@ init_clean: #ifdef USE_CLIB call @malloc #else -# if 0 +# ifndef STACK_OVERFLOW_EXCEPTION_HANDLER call @allocate_memory # else call @allocate_memory_with_guard_page_at_end @@ -742,7 +741,7 @@ init_clean: je no_memory_3 mov d0,stack_mbp -#if 1 +#ifdef STACK_OVERFLOW_EXCEPTION_HANDLER addl @ab_stack_size,d0 addl $3+4095,d0 andl $-4096,d0 @@ -2794,7 +2793,7 @@ no_total_compact_gc_bytes_carry: lea (d0,d1,4),d0 jmp end_garbage_collect -#if 1 +#ifdef STACK_OVERFLOW_EXCEPTION_HANDLER .globl _clean_exception_handler?4 _clean_exception_handler?4: movl 4(%esp),%eax diff --git a/itrace.s b/itrace.s new file mode 100644 index 0000000..80b53b7 --- /dev/null +++ b/itrace.s @@ -0,0 +1,419 @@ + +#undef DEBUG_PROFILER + +#define MODULE_NAMES + +#define d0 %eax +#define d1 %ebx +#define a0 %ecx +#define a1 %edx +#define a2 %ebp +#define a3 %esi +#define a4 %edi +#define sp %esp + +#if defined(_WINDOWS_) +# define align(n) .align (1<<n) +#else +# define align(n) .align n +#endif + + .global init_profiler + .global profile_r + .global profile_l + .global profile_l2 + .global profile_n + .global profile_n2 + .global profile_s + .global profile_s2 + .global profile_t + .global write_profile_information + .global write_profile_stack + + .global @allocate_memory + .global __STRING__ + .global writeFC + .global writeFI + .global print_error + .global @ab_stack_size + .global @ew_print_string + .global @ew_print_char + .global @stack_trace_depth + +#define next 0 +#define name 4 +#define FunctionProfile 8 + + .text +profile_t: + push a0 + mov profile_stack_pointer,a0 + + push d1 + mov -4(a0),d1 + + sub $4,a0 + + mov a0,profile_stack_pointer + + pop d1 + pop a0 + ret + +profile_r: + push a0 + mov profile_stack_pointer,a0 + + push d1 + mov -4(a0),d1 + + sub $4,a0 + + mov a0,profile_stack_pointer + + pop d1 + pop a0 + ret + +profile_l: + push d1 + mov (a2),d1 + + test d1,d1 + je allocate_function_profile_record_l +allocate_function_profile_record_lr: + push a0 + + mov profile_stack_pointer,a0 + +#ifdef DEBUG_PROFILER + testl (d1),d1 +#endif + mov d1,(a0) + add $4,a0 + + mov a0,profile_stack_pointer + + pop a0 + pop d1 + ret + +allocate_function_profile_record_l: + call allocate_function_profile_record + jmp allocate_function_profile_record_lr + +profile_l2: + push d1 + mov (a2),d1 + + test d1,d1 + je allocate_function_profile_record_l2 +allocate_function_profile_record_l2r: + push a0 + + mov profile_stack_pointer,a0 + +#ifdef DEBUG_PROFILER + testl (d1),d1 +#endif + mov d1,(a0) + mov d1,4(a0) + add $8,a0 + + mov a0,profile_stack_pointer + + pop a0 + pop d1 + ret + +allocate_function_profile_record_l2: + call allocate_function_profile_record + jmp allocate_function_profile_record_l2r + +profile_n: + push d1 + mov (a2),d1 + + test d1,d1 + je allocate_function_profile_record_n +allocate_function_profile_record_nr: + push a0 + + mov profile_stack_pointer,a0 + +#ifdef DEBUG_PROFILER + testl (d1),d1 +#endif + mov d1,(a0) + add $4,a0 + + mov a0,profile_stack_pointer + + pop a0 + pop d1 + ret + +allocate_function_profile_record_n: + call allocate_function_profile_record + jmp allocate_function_profile_record_nr + +profile_n2: + push d1 + mov (a2),d1 + + test d1,d1 + je allocate_function_profile_record_n2 +allocate_function_profile_record_n2r: + push a0 + + mov profile_stack_pointer,a0 + +#ifdef DEBUG_PROFILER + testl (d1),d1 +#endif + mov d1,(a0) + mov d1,4(a0) + add $8,a0 + + mov a0,profile_stack_pointer + + pop a0 + pop d1 + ret + +allocate_function_profile_record_n2: + call allocate_function_profile_record + jmp allocate_function_profile_record_n2r + +profile_s2: + push d1 + mov (a2),d1 + + test d1,d1 + je allocate_function_profile_record_s2 +allocate_function_profile_record_s2r: + push a0 + + mov profile_stack_pointer,a0 + +#ifdef DEBUG_PROFILER + testl (d1),d1 +#endif + movl d1,(a0) + movl d1,4(a0) + add $8,a0 + mov a0,profile_stack_pointer + + pop a0 + pop d1 + ret + +allocate_function_profile_record_s2: + call allocate_function_profile_record + jmp allocate_function_profile_record_s2r + +profile_s: + push d1 + movl (a2),d1 + + test d1,d1 + je allocate_function_profile_record_s +allocate_function_profile_record_sr: + push a0 + + mov profile_stack_pointer,a0 + +#ifdef DEBUG_PROFILER + testl (d1),d1 +#endif + movl d1,(a0) + add $4,a0 + + mov a0,profile_stack_pointer + + pop a0 + pop d1 + ret + +allocate_function_profile_record_s: + call allocate_function_profile_record + jmp allocate_function_profile_record_sr + + +/ argument: a2: function name adress-4 +/ result: d1: function profile record adress + +allocate_function_profile_record: + push d0 + mov global_n_free_records_in_block,d0 + mov global_last_allocated_block,d1 + + test d0,d0 + jne no_alloc + + push d1 + push a0 + push a1 + + pushl $512*FunctionProfile + call @allocate_memory + add $4,sp + + test d0,d0 + + pop a1 + pop a0 + pop d1 + + je no_memory + + mov d0,d1 + mov $512,d0 + mov d1,global_last_allocated_block + +no_alloc: + dec d0 + mov d0,global_n_free_records_in_block + lea FunctionProfile(d1),d0 + mov d0,global_last_allocated_block + + mov global_profile_records,d0 + mov a2,name(d1) + + mov d0,next(d1) + mov d1,global_profile_records + + mov d1,(a2) + pop d0 + ret + +no_memory: + movl $not_enough_memory_for_profiler,a2 + pop d0 + jmp print_error + +write_profile_information: + ret + +write_profile_stack: + mov profile_stack_pointer,d0 + + test d0,d0 + je stack_not_initialised + + push d0 + + push $stack_trace_string + call @ew_print_string + add $4,sp + + pop d0 + +/ mov $12,a2 + movl @stack_trace_depth,a2 +write_functions_on_stack: + mov -4(d0),d1 + sub $4,d0 + + test d1,d1 + je end_profile_stack + + push d0 + mov name(d1),a0 + + push a2 + add $4,a0 + + push a0 + call @ew_print_string + add $4,sp + + pushl $10 + call @ew_print_char + add $4,sp + + pop a2 + pop d0 + + sub $1,a2 + jne write_functions_on_stack + +end_profile_stack: +stack_not_initialised: + ret + +init_profiler: + pushl @ab_stack_size + call @allocate_memory + add $4,sp + + test d0,d0 + je init_profiler_error + + push d0 + + mov $start_string,a2 + call allocate_function_profile_record + + pop a1 + + mov d1,4(a1) + movl $0,(a1) + add $8,a1 + mov a1,profile_stack_pointer + + mov end_heap,a1 + sub a4,a1 + add $32,a1 + mov a1,global_n_bytes_free + ret + +init_profiler_error: + movl $0,profile_stack_pointer + movl $not_enough_memory_for_profile_stack,a2 + jmp print_error + + .data + align (2) + +global_n_free_records_in_block: .long 0 +/ 0 n free records in block +global_last_allocated_block: .long 0 +/ 4 latest allocated block +global_profile_records: .long 0 +/ 8 profile record list +profile_stack_pointer: .long 0 +global_n_bytes_free: .long 0 + + align (2) +@stack_trace_depth: + .long 12 +#ifdef MODULE_NAMES +# if 0 +/ m_system also defined in cgistartup.s +m_system: + .long 6 + .ascii "System" + .byte 0 + .byte 0 +# endif + .long m_system +#endif +start_string: + .long 0 + .asciz "start" + align (2) +not_enough_memory_for_profile_stack: + .ascii "not enough memory for profile stack" + .byte 10 + .byte 0 +not_enough_memory_for_profiler: + .ascii "not enough memory for profiler" + .byte 10 + .byte 0 +stack_trace_string: + .ascii "Stack trace:" + .byte 10 + .byte 0 + + align (2) |