diff options
Diffstat (limited to 'arch/tile/kernel/backtrace.c')
-rw-r--r-- | arch/tile/kernel/backtrace.c | 81 |
1 files changed, 34 insertions, 47 deletions
diff --git a/arch/tile/kernel/backtrace.c b/arch/tile/kernel/backtrace.c index 1b0a410ef5e7..77265f3b58d6 100644 --- a/arch/tile/kernel/backtrace.c +++ b/arch/tile/kernel/backtrace.c @@ -30,18 +30,18 @@ /** A decoded bundle used for backtracer analysis. */ -typedef struct { +struct BacktraceBundle { tile_bundle_bits bits; int num_insns; struct tile_decoded_instruction insns[TILE_MAX_INSTRUCTIONS_PER_BUNDLE]; -} BacktraceBundle; +}; /* This implementation only makes sense for native tools. */ /** Default function to read memory. */ -static bool -bt_read_memory(void *result, VirtualAddress addr, size_t size, void *extra) +static bool bt_read_memory(void *result, VirtualAddress addr, + size_t size, void *extra) { /* FIXME: this should do some horrible signal stuff to catch * SEGV cleanly and fail. @@ -58,11 +58,11 @@ bt_read_memory(void *result, VirtualAddress addr, size_t size, void *extra) * has the specified mnemonic, and whose first 'num_operands_to_match' * operands exactly match those in 'operand_values'. */ -static const struct tile_decoded_instruction* -find_matching_insn(const BacktraceBundle *bundle, - tile_mnemonic mnemonic, - const int *operand_values, - int num_operands_to_match) +static const struct tile_decoded_instruction *find_matching_insn( + const struct BacktraceBundle *bundle, + tile_mnemonic mnemonic, + const int *operand_values, + int num_operands_to_match) { int i, j; bool match; @@ -90,8 +90,7 @@ find_matching_insn(const BacktraceBundle *bundle, } /** Does this bundle contain an 'iret' instruction? */ -static inline bool -bt_has_iret(const BacktraceBundle *bundle) +static inline bool bt_has_iret(const struct BacktraceBundle *bundle) { return find_matching_insn(bundle, TILE_OPC_IRET, NULL, 0) != NULL; } @@ -99,8 +98,7 @@ bt_has_iret(const BacktraceBundle *bundle) /** Does this bundle contain an 'addi sp, sp, OFFSET' or * 'addli sp, sp, OFFSET' instruction, and if so, what is OFFSET? */ -static bool -bt_has_addi_sp(const BacktraceBundle *bundle, int *adjust) +static bool bt_has_addi_sp(const struct BacktraceBundle *bundle, int *adjust) { static const int vals[2] = { TREG_SP, TREG_SP }; @@ -120,8 +118,7 @@ bt_has_addi_sp(const BacktraceBundle *bundle, int *adjust) * as an unsigned value by this code since that's what the caller wants. * Returns the number of info ops found. */ -static int -bt_get_info_ops(const BacktraceBundle *bundle, +static int bt_get_info_ops(const struct BacktraceBundle *bundle, int operands[MAX_INFO_OPS_PER_BUNDLE]) { int num_ops = 0; @@ -143,8 +140,7 @@ bt_get_info_ops(const BacktraceBundle *bundle, /** Does this bundle contain a jrp instruction, and if so, to which * register is it jumping? */ -static bool -bt_has_jrp(const BacktraceBundle *bundle, int *target_reg) +static bool bt_has_jrp(const struct BacktraceBundle *bundle, int *target_reg) { const struct tile_decoded_instruction *insn = find_matching_insn(bundle, TILE_OPC_JRP, NULL, 0); @@ -156,8 +152,7 @@ bt_has_jrp(const BacktraceBundle *bundle, int *target_reg) } /** Does this bundle modify the specified register in any way? */ -static bool -bt_modifies_reg(const BacktraceBundle *bundle, int reg) +static bool bt_modifies_reg(const struct BacktraceBundle *bundle, int reg) { int i, j; for (i = 0; i < bundle->num_insns; i++) { @@ -177,30 +172,26 @@ bt_modifies_reg(const BacktraceBundle *bundle, int reg) } /** Does this bundle modify sp? */ -static inline bool -bt_modifies_sp(const BacktraceBundle *bundle) +static inline bool bt_modifies_sp(const struct BacktraceBundle *bundle) { return bt_modifies_reg(bundle, TREG_SP); } /** Does this bundle modify lr? */ -static inline bool -bt_modifies_lr(const BacktraceBundle *bundle) +static inline bool bt_modifies_lr(const struct BacktraceBundle *bundle) { return bt_modifies_reg(bundle, TREG_LR); } /** Does this bundle contain the instruction 'move fp, sp'? */ -static inline bool -bt_has_move_r52_sp(const BacktraceBundle *bundle) +static inline bool bt_has_move_r52_sp(const struct BacktraceBundle *bundle) { static const int vals[2] = { 52, TREG_SP }; return find_matching_insn(bundle, TILE_OPC_MOVE, vals, 2) != NULL; } /** Does this bundle contain the instruction 'sw sp, lr'? */ -static inline bool -bt_has_sw_sp_lr(const BacktraceBundle *bundle) +static inline bool bt_has_sw_sp_lr(const struct BacktraceBundle *bundle) { static const int vals[2] = { TREG_SP, TREG_LR }; return find_matching_insn(bundle, TILE_OPC_SW, vals, 2) != NULL; @@ -209,11 +200,10 @@ bt_has_sw_sp_lr(const BacktraceBundle *bundle) /** Locates the caller's PC and SP for a program starting at the * given address. */ -static void -find_caller_pc_and_caller_sp(CallerLocation *location, - const VirtualAddress start_pc, - BacktraceMemoryReader read_memory_func, - void *read_memory_func_extra) +static void find_caller_pc_and_caller_sp(CallerLocation *location, + const VirtualAddress start_pc, + BacktraceMemoryReader read_memory_func, + void *read_memory_func_extra) { /* Have we explicitly decided what the sp is, * rather than just the default? @@ -253,7 +243,7 @@ find_caller_pc_and_caller_sp(CallerLocation *location, for (pc = start_pc;; pc += sizeof(tile_bundle_bits)) { - BacktraceBundle bundle; + struct BacktraceBundle bundle; int num_info_ops, info_operands[MAX_INFO_OPS_PER_BUNDLE]; int one_ago, jrp_reg; bool has_jrp; @@ -475,12 +465,11 @@ find_caller_pc_and_caller_sp(CallerLocation *location, } } -void -backtrace_init(BacktraceIterator *state, - BacktraceMemoryReader read_memory_func, - void *read_memory_func_extra, - VirtualAddress pc, VirtualAddress lr, - VirtualAddress sp, VirtualAddress r52) +void backtrace_init(BacktraceIterator *state, + BacktraceMemoryReader read_memory_func, + void *read_memory_func_extra, + VirtualAddress pc, VirtualAddress lr, + VirtualAddress sp, VirtualAddress r52) { CallerLocation location; VirtualAddress fp, initial_frame_caller_pc; @@ -558,8 +547,7 @@ backtrace_init(BacktraceIterator *state, state->read_memory_func_extra = read_memory_func_extra; } -bool -backtrace_next(BacktraceIterator *state) +bool backtrace_next(BacktraceIterator *state) { VirtualAddress next_fp, next_pc, next_frame[2]; @@ -614,12 +602,11 @@ backtrace_next(BacktraceIterator *state) #else /* TILE_CHIP < 10 */ -void -backtrace_init(BacktraceIterator *state, - BacktraceMemoryReader read_memory_func, - void *read_memory_func_extra, - VirtualAddress pc, VirtualAddress lr, - VirtualAddress sp, VirtualAddress r52) +void backtrace_init(BacktraceIterator *state, + BacktraceMemoryReader read_memory_func, + void *read_memory_func_extra, + VirtualAddress pc, VirtualAddress lr, + VirtualAddress sp, VirtualAddress r52) { state->pc = pc; state->sp = sp; |