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-rw-r--r--erts/emulator/beam/beam_load.c52
-rw-r--r--erts/emulator/beam/beam_load.h18
-rw-r--r--erts/emulator/beam/beam_ranges.c37
3 files changed, 54 insertions, 53 deletions
diff --git a/erts/emulator/beam/beam_load.c b/erts/emulator/beam/beam_load.c
index c56e6732a0..1c598601c6 100644
--- a/erts/emulator/beam/beam_load.c
+++ b/erts/emulator/beam/beam_load.c
@@ -4388,9 +4388,11 @@ freeze_code(LoaderState* stp)
if (stp->line_instr == 0) {
line_size = 0;
} else {
- line_size = (MI_LINE_FUNC_TAB + (stp->num_functions + 1) +
- (stp->current_li+1) + stp->num_fnames) *
- sizeof(Eterm) + (stp->current_li+1) * stp->loc_size;
+ line_size = (offsetof(BeamCodeLineTab,func_tab)
+ + (stp->num_functions + 1) * sizeof(BeamInstr**) /* func_tab */
+ + (stp->current_li + 1) * sizeof(BeamInstr*) /* line items */
+ + stp->num_fnames * sizeof(Eterm) /* fname table */
+ + (stp->current_li + 1) * stp->loc_size); /* loc_tab */
}
size = offsetof(BeamCodeHeader,functions) + (stp->ci * sizeof(BeamInstr)) +
strtab_size + attr_size + compile_size + MD5_SIZE + line_size;
@@ -4465,42 +4467,40 @@ freeze_code(LoaderState* stp)
code_hdr->line_table = NULL;
str_table = (byte *) (codev + stp->ci);
} else {
- Eterm* line_tab = (Eterm *) (codev+stp->ci);
- Eterm* p;
- int ftab_size = stp->num_functions;
- int num_instrs = stp->current_li;
- Eterm* first_line_item;
+ BeamCodeLineTab* const line_tab = (BeamCodeLineTab *) (codev+stp->ci);
+ const int ftab_size = stp->num_functions;
+ const int num_instrs = stp->current_li;
+ const BeamInstr** const line_items =
+ (const BeamInstr**) &line_tab->func_tab[ftab_size + 1];
code_hdr->line_table = line_tab;
- p = line_tab + MI_LINE_FUNC_TAB;
- first_line_item = (p + ftab_size + 1);
for (i = 0; i < ftab_size; i++) {
- *p++ = (Eterm) (BeamInstr) (first_line_item + stp->func_line[i]);
+ line_tab->func_tab[i] = line_items + stp->func_line[i];
}
- *p++ = (Eterm) (BeamInstr) (first_line_item + num_instrs);
- ASSERT(p == first_line_item);
+ line_tab->func_tab[i] = line_items + num_instrs;
+
for (i = 0; i < num_instrs; i++) {
- *p++ = (Eterm) (BeamInstr) (codev + stp->line_instr[i].pos);
+ line_items[i] = codev + stp->line_instr[i].pos;
}
- *p++ = (Eterm) (BeamInstr) (codev + stp->ci - 1);
+ line_items[i] = codev + stp->ci - 1;
- line_tab[MI_LINE_FNAME_PTR] = (Eterm) (BeamInstr) p;
- memcpy(p, stp->fname, stp->num_fnames*sizeof(Eterm));
- p += stp->num_fnames;
+ line_tab->fname_ptr = (Eterm*) &line_items[i + 1];
+ memcpy(line_tab->fname_ptr, stp->fname, stp->num_fnames*sizeof(Eterm));
- line_tab[MI_LINE_LOC_TAB] = (Eterm) (BeamInstr) p;
- line_tab[MI_LINE_LOC_SIZE] = stp->loc_size;
+ line_tab->loc_size = stp->loc_size;
if (stp->loc_size == 2) {
- Uint16* locp = (Uint16 *) p;
- for (i = 0; i < num_instrs; i++) {
+ Uint16* locp = (Uint16 *) &line_tab->fname_ptr[stp->num_fnames];
+ line_tab->loc_tab.p2 = locp;
+ for (i = 0; i < num_instrs; i++) {
*locp++ = (Uint16) stp->line_instr[i].loc;
- }
- *locp++ = LINE_INVALID_LOCATION;
+ }
+ *locp++ = LINE_INVALID_LOCATION;
str_table = (byte *) locp;
} else {
- Uint32* locp = (Uint32 *) p;
- ASSERT(stp->loc_size == 4);
+ Uint32* locp = (Uint32 *) &line_tab->fname_ptr[stp->num_fnames];
+ ASSERT(stp->loc_size == 4);
+ line_tab->loc_tab.p4 = locp;
for (i = 0; i < num_instrs; i++) {
*locp++ = stp->line_instr[i].loc;
}
diff --git a/erts/emulator/beam/beam_load.h b/erts/emulator/beam/beam_load.h
index c86ac65521..22ab71c868 100644
--- a/erts/emulator/beam/beam_load.h
+++ b/erts/emulator/beam/beam_load.h
@@ -61,6 +61,8 @@ extern BeamInstr* em_call_nif;
/* Total code size in bytes */
extern Uint erts_total_code_size;
+typedef struct BeamCodeLineTab_ BeamCodeLineTab;
+
/*
* Header of code chunks which contains additional information
* about the loaded module.
@@ -100,7 +102,7 @@ typedef struct beam_code_header {
/*
* Pointer to the line table (or NULL if none).
*/
- Eterm* line_table;
+ BeamCodeLineTab* line_table;
/*
* Pointer to the module MD5 sum (16 bytes)
@@ -124,11 +126,15 @@ int erts_is_module_native(BeamCodeHeader* code);
/*
* Layout of the line table.
*/
-
-#define MI_LINE_FNAME_PTR 0
-#define MI_LINE_LOC_TAB 1
-#define MI_LINE_LOC_SIZE 2
-#define MI_LINE_FUNC_TAB 3
+struct BeamCodeLineTab_ {
+ Eterm* fname_ptr;
+ int loc_size;
+ union {
+ Uint16* p2;
+ Uint32* p4;
+ }loc_tab;
+ const BeamInstr** func_tab[1];
+};
#define LINE_INVALID_LOCATION (0)
diff --git a/erts/emulator/beam/beam_ranges.c b/erts/emulator/beam/beam_ranges.c
index e6cf43446e..5a2b66727a 100644
--- a/erts/emulator/beam/beam_ranges.c
+++ b/erts/emulator/beam/beam_ranges.c
@@ -37,7 +37,7 @@ typedef struct {
#define RANGE_END(R) ((BeamInstr*)erts_smp_atomic_read_nob(&(R)->end))
static Range* find_range(BeamInstr* pc);
-static void lookup_loc(FunctionInfo* fi, BeamInstr* pc,
+static void lookup_loc(FunctionInfo* fi, const BeamInstr* pc,
BeamCodeHeader*, int idx);
/*
@@ -296,39 +296,34 @@ find_range(BeamInstr* pc)
}
static void
-lookup_loc(FunctionInfo* fi, BeamInstr* orig_pc, BeamCodeHeader* code_hdr, int idx)
+lookup_loc(FunctionInfo* fi, const BeamInstr* pc,
+ BeamCodeHeader* code_hdr, int idx)
{
- Eterm* line = code_hdr->line_table;
- Eterm* low;
- Eterm* high;
- Eterm* mid;
- Eterm pc;
+ BeamCodeLineTab* lt = code_hdr->line_table;
+ const BeamInstr** low;
+ const BeamInstr** high;
+ const BeamInstr** mid;
- if (line == 0) {
+ if (lt == NULL) {
return;
}
- pc = (Eterm) (BeamInstr) orig_pc;
- fi->fname_ptr = (Eterm *) (BeamInstr) line[MI_LINE_FNAME_PTR];
- low = (Eterm *) (BeamInstr) line[MI_LINE_FUNC_TAB+idx];
- high = (Eterm *) (BeamInstr) line[MI_LINE_FUNC_TAB+idx+1];
+ fi->fname_ptr = lt->fname_ptr;
+ low = lt->func_tab[idx];
+ high = lt->func_tab[idx+1];
while (high > low) {
mid = low + (high-low) / 2;
if (pc < mid[0]) {
high = mid;
} else if (pc < mid[1]) {
int file;
- int index = mid - (Eterm *) (BeamInstr) line[MI_LINE_FUNC_TAB];
+ int index = mid - lt->func_tab[0];
- if (line[MI_LINE_LOC_SIZE] == 2) {
- Uint16* loc_table =
- (Uint16 *) (BeamInstr) line[MI_LINE_LOC_TAB];
- fi->loc = loc_table[index];
+ if (lt->loc_size == 2) {
+ fi->loc = lt->loc_tab.p2[index];
} else {
- Uint32* loc_table =
- (Uint32 *) (BeamInstr) line[MI_LINE_LOC_TAB];
- ASSERT(line[MI_LINE_LOC_SIZE] == 4);
- fi->loc = loc_table[index];
+ ASSERT(lt->loc_size == 4);
+ fi->loc = lt->loc_tab.p4[index];
}
if (fi->loc == LINE_INVALID_LOCATION) {
return;
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-19 02:51:37 +0000