From cbaddb165393002bd76f4d70247662588d3dee26 Mon Sep 17 00:00:00 2001 From: Sverker Eriksson Date: Tue, 4 Apr 2017 18:55:46 +0200 Subject: Refactor hipe specific code to use ErtsCodeInfo instead of ugly negative indexing. --- erts/emulator/hipe/hipe_bif0.c | 32 +++++++++++++------------- erts/emulator/hipe/hipe_bif0.h | 2 +- erts/emulator/hipe/hipe_bif1.c | 42 +++++++++++++++++++++-------------- erts/emulator/hipe/hipe_mode_switch.c | 7 +++--- erts/emulator/hipe/hipe_mode_switch.h | 2 +- 5 files changed, 46 insertions(+), 39 deletions(-) (limited to 'erts') diff --git a/erts/emulator/hipe/hipe_bif0.c b/erts/emulator/hipe/hipe_bif0.c index 8b420b9e9b..e51e9f2733 100644 --- a/erts/emulator/hipe/hipe_bif0.c +++ b/erts/emulator/hipe/hipe_bif0.c @@ -603,10 +603,7 @@ static void print_mfa(Eterm mod, Eterm fun, unsigned int ari) } #endif -/* - * Convert {M,F,A} to pointer to first insn after initial func_info. - */ -static Uint *hipe_find_emu_address(Eterm mod, Eterm name, unsigned int arity) +static ErtsCodeInfo* hipe_find_emu_address(Eterm mod, Eterm name, unsigned int arity) { Module *modp; BeamCodeHeader* code_hdr; @@ -617,15 +614,15 @@ static Uint *hipe_find_emu_address(Eterm mod, Eterm name, unsigned int arity) return NULL; n = code_hdr->num_functions; for (i = 0; i < n; ++i) { - Uint *code_ptr = (Uint*)code_hdr->functions[i]; - ASSERT(code_ptr[0] == BeamOpCode(op_i_func_info_IaaI)); - if (code_ptr[3] == name && code_ptr[4] == arity) - return code_ptr+5; + ErtsCodeInfo *ci = code_hdr->functions[i]; + ASSERT(ci->op == BeamOpCode(op_i_func_info_IaaI)); + if (ci->mfa.function == name && ci->mfa.arity == arity) + return ci; } return NULL; } -Uint *hipe_bifs_find_pc_from_mfa(Eterm term) +ErtsCodeInfo* hipe_bifs_find_pc_from_mfa(Eterm term) { struct hipe_mfa mfa; @@ -636,10 +633,10 @@ Uint *hipe_bifs_find_pc_from_mfa(Eterm term) BIF_RETTYPE hipe_bifs_fun_to_address_1(BIF_ALIST_1) { - Eterm *pc = hipe_bifs_find_pc_from_mfa(BIF_ARG_1); - if (!pc) + ErtsCodeInfo* ci = hipe_bifs_find_pc_from_mfa(BIF_ARG_1); + if (!ci) BIF_ERROR(BIF_P, BADARG); - BIF_RET(address_to_term(pc, BIF_P)); + BIF_RET(address_to_term(erts_codeinfo_to_code(ci), BIF_P)); } BIF_RETTYPE hipe_bifs_commit_patch_load_1(BIF_ALIST_1) @@ -652,7 +649,7 @@ BIF_RETTYPE hipe_bifs_commit_patch_load_1(BIF_ALIST_1) BIF_RETTYPE hipe_bifs_set_native_address_3(BIF_ALIST_3) { - Eterm *pc; + ErtsCodeInfo *ci; void *address; int is_closure; struct hipe_mfa mfa; @@ -675,11 +672,12 @@ BIF_RETTYPE hipe_bifs_set_native_address_3(BIF_ALIST_3) simply have called hipe_bifs_find_pc_from_mfa(). */ if (!term_to_mfa(BIF_ARG_1, &mfa)) BIF_ERROR(BIF_P, BADARG); - pc = hipe_find_emu_address(mfa.mod, mfa.fun, mfa.ari); + ci = hipe_find_emu_address(mfa.mod, mfa.fun, mfa.ari); - if (pc) { - DBG_TRACE_MFA(mfa.mod,mfa.fun,mfa.ari, "set beam call trap at %p -> %p", pc, address); - hipe_set_call_trap(pc, address, is_closure); + if (ci) { + DBG_TRACE_MFA(mfa.mod,mfa.fun,mfa.ari, "set beam call trap at %p -> %p", + erts_codeinfo_to_code(ci), address); + hipe_set_call_trap(ci, address, is_closure); BIF_RET(am_true); } DBG_TRACE_MFA(mfa.mod,mfa.fun,mfa.ari, "failed set call trap to %p, no beam code found", address); diff --git a/erts/emulator/hipe/hipe_bif0.h b/erts/emulator/hipe/hipe_bif0.h index 811c3801c1..d6be473ff5 100644 --- a/erts/emulator/hipe/hipe_bif0.h +++ b/erts/emulator/hipe/hipe_bif0.h @@ -26,7 +26,7 @@ #ifndef HIPE_BIF0_H #define HIPE_BIF0_H -extern Uint *hipe_bifs_find_pc_from_mfa(Eterm mfa); +extern ErtsCodeInfo *hipe_bifs_find_pc_from_mfa(Eterm mfa); extern void hipe_mfa_info_table_init(void); extern void *hipe_get_remote_na(Eterm m, Eterm f, unsigned int a); diff --git a/erts/emulator/hipe/hipe_bif1.c b/erts/emulator/hipe/hipe_bif1.c index 0ba0fa5172..0d4c1539b6 100644 --- a/erts/emulator/hipe/hipe_bif1.c +++ b/erts/emulator/hipe/hipe_bif1.c @@ -39,13 +39,15 @@ BIF_RETTYPE hipe_bifs_call_count_on_1(BIF_ALIST_1) { + ErtsCodeInfo *ci; Eterm *pc; struct hipe_call_count *hcc; - pc = hipe_bifs_find_pc_from_mfa(BIF_ARG_1); - if (!pc) + ci = hipe_bifs_find_pc_from_mfa(BIF_ARG_1); + if (!ci) BIF_ERROR(BIF_P, BADARG); - ASSERT(pc[-6] == BeamOpCode(op_i_func_info_IaaI)); + ASSERT(ci->op == BeamOpCode(op_i_func_info_IaaI)); + pc = erts_codeinfo_to_code(ci); if (pc[0] == BeamOpCode(op_hipe_trap_call)) BIF_ERROR(BIF_P, BADARG); if (pc[0] == BeamOpCode(op_hipe_call_count)) @@ -53,59 +55,65 @@ BIF_RETTYPE hipe_bifs_call_count_on_1(BIF_ALIST_1) hcc = erts_alloc(ERTS_ALC_T_HIPE_SL, sizeof(*hcc)); hcc->count = 0; hcc->opcode = pc[0]; - pc[-4] = (Eterm)hcc; + ci->u.hcc = hcc; pc[0] = BeamOpCode(op_hipe_call_count); BIF_RET(am_true); } BIF_RETTYPE hipe_bifs_call_count_off_1(BIF_ALIST_1) { + ErtsCodeInfo* ci; Eterm *pc; struct hipe_call_count *hcc; unsigned count; - pc = hipe_bifs_find_pc_from_mfa(BIF_ARG_1); - if (!pc) + ci = hipe_bifs_find_pc_from_mfa(BIF_ARG_1); + if (!ci) BIF_ERROR(BIF_P, BADARG); - ASSERT(pc[-6] == BeamOpCode(op_i_func_info_IaaI)); + ASSERT(ci->op == BeamOpCode(op_i_func_info_IaaI)); + pc = erts_codeinfo_to_code(ci); if (pc[0] != BeamOpCode(op_hipe_call_count)) BIF_RET(am_false); - hcc = (struct hipe_call_count*)pc[-4]; + hcc = ci->u.hcc; count = hcc->count; pc[0] = hcc->opcode; - pc[-4] = (Eterm)NULL; + ci->u.hcc = NULL; erts_free(ERTS_ALC_T_HIPE_SL, hcc); BIF_RET(make_small(count)); } BIF_RETTYPE hipe_bifs_call_count_get_1(BIF_ALIST_1) { + ErtsCodeInfo* ci; Eterm *pc; struct hipe_call_count *hcc; - pc = hipe_bifs_find_pc_from_mfa(BIF_ARG_1); - if (!pc) + ci = hipe_bifs_find_pc_from_mfa(BIF_ARG_1); + if (!ci) BIF_ERROR(BIF_P, BADARG); - ASSERT(pc[-6] == BeamOpCode(op_i_func_info_IaaI)); + ASSERT(ci->op == BeamOpCode(op_i_func_info_IaaI)); + pc = erts_codeinfo_to_code(ci); if (pc[0] != BeamOpCode(op_hipe_call_count)) BIF_RET(am_false); - hcc = (struct hipe_call_count*)pc[-4]; + hcc = ci->u.hcc; BIF_RET(make_small(hcc->count)); } BIF_RETTYPE hipe_bifs_call_count_clear_1(BIF_ALIST_1) { + ErtsCodeInfo* ci; Eterm *pc; struct hipe_call_count *hcc; unsigned count; - pc = hipe_bifs_find_pc_from_mfa(BIF_ARG_1); - if (!pc) + ci = hipe_bifs_find_pc_from_mfa(BIF_ARG_1); + if (!ci) BIF_ERROR(BIF_P, BADARG); - ASSERT(pc[-6] == BeamOpCode(op_i_func_info_IaaI)); + ASSERT(ci->op == BeamOpCode(op_i_func_info_IaaI)); + pc = erts_codeinfo_to_code(ci); if (pc[0] != BeamOpCode(op_hipe_call_count)) BIF_RET(am_false); - hcc = (struct hipe_call_count*)pc[-4]; + hcc = ci->u.hcc; count = hcc->count; hcc->count = 0; BIF_RET(make_small(count)); diff --git a/erts/emulator/hipe/hipe_mode_switch.c b/erts/emulator/hipe/hipe_mode_switch.c index 712f65f629..1270a94986 100644 --- a/erts/emulator/hipe/hipe_mode_switch.c +++ b/erts/emulator/hipe/hipe_mode_switch.c @@ -176,14 +176,15 @@ void hipe_mode_switch_init(void) hipe_mfa_info_table_init(); } -void hipe_set_call_trap(Uint *bfun, void *nfun, int is_closure) +void hipe_set_call_trap(ErtsCodeInfo* ci, void *nfun, int is_closure) { - HIPE_ASSERT(bfun[-5] == BeamOpCode(op_i_func_info_IaaI)); + BeamInstr* bfun = erts_codeinfo_to_code(ci); + HIPE_ASSERT(ci->op == BeamOpCode(op_i_func_info_IaaI)); bfun[0] = is_closure ? BeamOpCode(op_hipe_trap_call_closure) : BeamOpCode(op_hipe_trap_call); - bfun[-4] = (Uint)nfun; + ci->u.ncallee = (void (*)(void)) nfun; } static __inline__ void diff --git a/erts/emulator/hipe/hipe_mode_switch.h b/erts/emulator/hipe/hipe_mode_switch.h index 334e978307..7b896872a6 100644 --- a/erts/emulator/hipe/hipe_mode_switch.h +++ b/erts/emulator/hipe/hipe_mode_switch.h @@ -55,7 +55,7 @@ extern int hipe_modeswitch_debug; void hipe_mode_switch_init(void); -void hipe_set_call_trap(Uint *bfun, void *nfun, int is_closure); +void hipe_set_call_trap(ErtsCodeInfo*, void *nfun, int is_closure); Process *hipe_mode_switch(Process*, unsigned, Eterm*); void hipe_inc_nstack(Process *p); void hipe_empty_nstack(Process *p); -- cgit v1.2.3