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-rw-r--r--erts/emulator/beam/beam_load.c118
1 files changed, 61 insertions, 57 deletions
diff --git a/erts/emulator/beam/beam_load.c b/erts/emulator/beam/beam_load.c
index b2c4fe5f5e..b7e802775d 100644
--- a/erts/emulator/beam/beam_load.c
+++ b/erts/emulator/beam/beam_load.c
@@ -105,7 +105,7 @@ typedef struct {
*/
typedef struct genop {
- int op; /* Opcode. */
+ unsigned int op; /* Opcode. */
int arity; /* Number of arguments. */
GenOpArg def_args[MAX_OPARGS]; /* Default buffer for arguments. */
GenOpArg* a; /* The arguments. */
@@ -283,8 +283,8 @@ typedef struct LoaderState {
byte* code_start; /* Start of code file. */
unsigned code_size; /* Size of code file. */
int specific_op; /* Specific opcode (-1 if not found). */
- int num_functions; /* Number of functions in module. */
- int num_labels; /* Number of labels. */
+ unsigned int num_functions; /* Number of functions in module. */
+ unsigned int num_labels; /* Number of labels. */
BeamCodeHeader* hdr; /* Loaded code header */
BeamInstr* codev; /* Loaded code buffer */
int codev_size; /* Size of code buffer in words. */
@@ -303,13 +303,13 @@ typedef struct LoaderState {
* Atom table.
*/
- int num_atoms; /* Number of atoms in atom table. */
+ unsigned int num_atoms; /* Number of atoms in atom table. */
Eterm* atom; /* Atom table. */
- int num_exps; /* Number of exports. */
+ unsigned int num_exps; /* Number of exports. */
ExportEntry* export; /* Pointer to export table. */
- int num_imports; /* Number of imports. */
+ unsigned int num_imports; /* Number of imports. */
ImportEntry* import; /* Import entry (translated information). */
/*
@@ -323,8 +323,8 @@ typedef struct LoaderState {
* Lambda table.
*/
- int num_lambdas; /* Number of lambdas in table. */
- int lambdas_allocated; /* Size of allocated lambda table. */
+ unsigned int num_lambdas; /* Number of lambdas in table. */
+ unsigned int lambdas_allocated; /* Size of allocated lambda table. */
Lambda* lambdas; /* Pointer to lambdas. */
Lambda def_lambdas[16]; /* Default storage for lambda table. */
char* lambda_error; /* Delayed missing 'FunT' error. */
@@ -333,8 +333,8 @@ typedef struct LoaderState {
* Literals (constant pool).
*/
- int num_literals; /* Number of literals in table. */
- int allocated_literals; /* Number of literal entries allocated. */
+ unsigned int num_literals; /* Number of literals in table. */
+ unsigned int allocated_literals; /* Number of literal entries allocated. */
Literal* literals; /* Array of literals. */
LiteralPatch* literal_patches; /* Operands that need to be patched. */
Uint total_literal_size; /* Total heap size for all literals. */
@@ -343,13 +343,13 @@ typedef struct LoaderState {
* Line table.
*/
BeamInstr* line_item; /* Line items from the BEAM file. */
- int num_line_items; /* Number of line items. */
+ unsigned int num_line_items;/* Number of line items. */
LineInstr* line_instr; /* Line instructions */
- int num_line_instrs; /* Maximum number of line instructions */
- int current_li; /* Current line instruction */
- int* func_line; /* Mapping from function to first line instr */
+ unsigned int num_line_instrs; /* Maximum number of line instructions */
+ unsigned int current_li; /* Current line instruction */
+ unsigned int* func_line; /* Mapping from function to first line instr */
Eterm* fname; /* List of file names */
- int num_fnames; /* Number of filenames in fname table */
+ unsigned int num_fnames; /* Number of filenames in fname table */
int loc_size; /* Size of location info in bytes (2/4) */
} LoaderState;
@@ -1331,7 +1331,7 @@ verify_chunks(LoaderState* stp)
static int
load_atom_table(LoaderState* stp)
{
- int i;
+ unsigned int i;
GetInt(stp, 4, stp->num_atoms);
stp->num_atoms++;
@@ -1376,13 +1376,13 @@ load_atom_table(LoaderState* stp)
static int
load_import_table(LoaderState* stp)
{
- int i;
+ unsigned int i;
GetInt(stp, 4, stp->num_imports);
stp->import = erts_alloc(ERTS_ALC_T_PREPARED_CODE,
stp->num_imports * sizeof(ImportEntry));
for (i = 0; i < stp->num_imports; i++) {
- int n;
+ unsigned int n;
Eterm mod;
Eterm func;
Uint arity;
@@ -1390,17 +1390,17 @@ load_import_table(LoaderState* stp)
GetInt(stp, 4, n);
if (n >= stp->num_atoms) {
- LoadError2(stp, "import entry %d: invalid atom number %d", i, n);
+ LoadError2(stp, "import entry %u: invalid atom number %u", i, n);
}
mod = stp->import[i].module = stp->atom[n];
GetInt(stp, 4, n);
if (n >= stp->num_atoms) {
- LoadError2(stp, "import entry %d: invalid atom number %d", i, n);
+ LoadError2(stp, "import entry %u: invalid atom number %u", i, n);
}
func = stp->import[i].function = stp->atom[n];
GetInt(stp, 4, arity);
if (arity > MAX_REG) {
- LoadError2(stp, "import entry %d: invalid arity %d", i, arity);
+ LoadError2(stp, "import entry %u: invalid arity %d", i, arity);
}
stp->import[i].arity = arity;
stp->import[i].patches = 0;
@@ -1428,12 +1428,12 @@ load_import_table(LoaderState* stp)
static int
read_export_table(LoaderState* stp)
{
- int i;
+ unsigned int i;
BeamInstr* address;
GetInt(stp, 4, stp->num_exps);
if (stp->num_exps > stp->num_functions) {
- LoadError2(stp, "%d functions exported; only %d functions defined",
+ LoadError2(stp, "%u functions exported; only %u functions defined",
stp->num_exps, stp->num_functions);
}
stp->export
@@ -1451,16 +1451,16 @@ read_export_table(LoaderState* stp)
stp->export[i].function = func;
GetInt(stp, 4, arity);
if (arity > MAX_REG) {
- LoadError2(stp, "export table entry %d: absurdly high arity %d", i, arity);
+ LoadError2(stp, "export table entry %u: absurdly high arity %u", i, arity);
}
stp->export[i].arity = arity;
GetInt(stp, 4, n);
if (n >= stp->num_labels) {
- LoadError3(stp, "export table entry %d: invalid label %d (highest defined label is %d)", i, n, stp->num_labels);
+ LoadError3(stp, "export table entry %u: invalid label %u (highest defined label is %u)", i, n, stp->num_labels);
}
value = stp->labels[n].value;
if (value == 0) {
- LoadError2(stp, "export table entry %d: label %d not resolved", i, n);
+ LoadError2(stp, "export table entry %u: label %u not resolved", i, n);
}
stp->export[i].address = address = stp->codev + value;
@@ -1521,7 +1521,7 @@ is_bif(Eterm mod, Eterm func, unsigned arity)
static int
read_lambda_table(LoaderState* stp)
{
- int i;
+ unsigned int i;
GetInt(stp, 4, stp->num_lambdas);
if (stp->num_lambdas > stp->lambdas_allocated) {
@@ -1541,12 +1541,12 @@ read_lambda_table(LoaderState* stp)
GetAtom(stp, n, stp->lambdas[i].function);
GetInt(stp, 4, arity);
if (arity > MAX_REG) {
- LoadError2(stp, "lambda entry %d: absurdly high arity %d", i, arity);
+ LoadError2(stp, "lambda entry %u: absurdly high arity %u", i, arity);
}
stp->lambdas[i].arity = arity;
GetInt(stp, 4, n);
if (n >= stp->num_labels) {
- LoadError3(stp, "lambda entry %d: invalid label %d (highest defined label is %d)",
+ LoadError3(stp, "lambda entry %u: invalid label %u (highest defined label is %u)",
i, n, stp->num_labels);
}
stp->lambdas[i].label = n;
@@ -1567,7 +1567,7 @@ read_lambda_table(LoaderState* stp)
static int
read_literal_table(LoaderState* stp)
{
- int i;
+ unsigned int i;
uLongf uncompressed_sz;
byte* uncompressed = 0;
@@ -1589,7 +1589,7 @@ read_literal_table(LoaderState* stp)
}
for (i = 0; i < stp->num_literals; i++) {
- int sz;
+ Uint sz;
Sint heap_size;
byte* p;
Eterm val;
@@ -1598,7 +1598,7 @@ read_literal_table(LoaderState* stp)
GetInt(stp, 4, sz); /* Size of external term format. */
GetString(stp, p, sz);
if ((heap_size = erts_decode_ext_size(p, sz)) < 0) {
- LoadError1(stp, "literal %d: bad external format", i);
+ LoadError1(stp, "literal %u: bad external format", i);
}
if (heap_size > 0) {
@@ -1608,7 +1608,7 @@ read_literal_table(LoaderState* stp)
val = erts_decode_ext(&factory, &p, 0);
if (is_non_value(val)) {
- LoadError1(stp, "literal %d: bad external format", i);
+ LoadError1(stp, "literal %u: bad external format", i);
}
erts_factory_close(&factory);
stp->literals[i].heap_frags = factory.heap_frags;
@@ -1618,7 +1618,7 @@ read_literal_table(LoaderState* stp)
erts_factory_dummy_init(&factory);
val = erts_decode_ext(&factory, &p, 0);
if (is_non_value(val)) {
- LoadError1(stp, "literal %d: bad external format", i);
+ LoadError1(stp, "literal %u: bad external format", i);
}
ASSERT(is_immed(val));
stp->literals[i].heap_frags = NULL;
@@ -1641,9 +1641,9 @@ read_line_table(LoaderState* stp)
{
unsigned version;
ERTS_DECLARE_DUMMY(unsigned flags);
- int num_line_items;
+ unsigned int num_line_items;
BeamInstr* lp;
- int i;
+ unsigned int i;
BeamInstr fname_index;
BeamInstr tag;
@@ -1722,7 +1722,7 @@ read_line_table(LoaderState* stp)
}
} else if (tag == TAG_a) {
if (val > stp->num_fnames) {
- LoadError2(stp, "file index overflow (%d/%d)",
+ LoadError2(stp, "file index overflow (%u/%u)",
val, stp->num_fnames);
}
fname_index = val;
@@ -1758,9 +1758,9 @@ read_line_table(LoaderState* stp)
stp->num_line_instrs *
sizeof(LineInstr));
stp->current_li = 0;
- stp->func_line = (int *) erts_alloc(ERTS_ALC_T_PREPARED_CODE,
- stp->num_functions *
- sizeof(int));
+ stp->func_line = (unsigned int *) erts_alloc(ERTS_ALC_T_PREPARED_CODE,
+ stp->num_functions *
+ sizeof(int));
return 1;
@@ -1784,6 +1784,10 @@ read_code_header(LoaderState* stp)
*/
GetInt(stp, 4, head_size);
+ if (head_size > stp->file_left) {
+ LoadError2(stp, "invalid code header size %u; bytes left %u",
+ head_size, stp->file_left);
+ }
stp->code_start = stp->file_p + head_size;
stp->code_size = stp->file_left - head_size;
stp->file_left = head_size;
@@ -1888,7 +1892,7 @@ load_code(LoaderState* stp)
ci = stp->ci;
for (;;) {
- int new_op;
+ unsigned int new_op;
GenOp* tmp_op;
ASSERT(ci <= codev_size);
@@ -1896,10 +1900,10 @@ load_code(LoaderState* stp)
get_next_instr:
GetByte(stp, new_op);
if (new_op >= NUM_GENERIC_OPS) {
- LoadError1(stp, "invalid opcode %d", new_op);
+ LoadError1(stp, "invalid opcode %u", new_op);
}
if (gen_opc[new_op].name[0] == '\0') {
- LoadError1(stp, "invalid opcode %d", new_op);
+ LoadError1(stp, "invalid opcode %u", new_op);
}
@@ -2369,7 +2373,7 @@ load_code(LoaderState* stp)
VerifyTag(stp, tag, TAG_u);
last_label = tmp_op->a[arg].val;
if (!(0 < last_label && last_label < stp->num_labels)) {
- LoadError2(stp, "invalid label num %d (0 < label < %d)",
+ LoadError2(stp, "invalid label num %u (0 < label < %u)",
tmp_op->a[arg].val, stp->num_labels);
}
if (stp->labels[last_label].value != 0) {
@@ -2513,7 +2517,7 @@ load_code(LoaderState* stp)
{
Sint offset;
if (function_number >= stp->num_functions) {
- LoadError1(stp, "too many functions in module (header said %d)",
+ LoadError1(stp, "too many functions in module (header said %u)",
stp->num_functions);
}
@@ -2592,14 +2596,14 @@ load_code(LoaderState* stp)
if (stp->line_item) {
BeamInstr item = code[ci-1];
BeamInstr loc;
- int li;
+ unsigned int li;
if (item >= stp->num_line_items) {
- LoadError2(stp, "line instruction index overflow (%d/%d)",
+ LoadError2(stp, "line instruction index overflow (%u/%u)",
item, stp->num_line_items);
}
li = stp->current_li;
if (li >= stp->num_line_instrs) {
- LoadError2(stp, "line instruction table overflow (%d/%d)",
+ LoadError2(stp, "line instruction table overflow (%u/%u)",
li, stp->num_line_instrs);
}
loc = stp->line_item[item];
@@ -4603,8 +4607,8 @@ freeze_code(LoaderState* stp)
str_table = (byte *) (codev + stp->ci);
} else {
BeamCodeLineTab* const line_tab = (BeamCodeLineTab *) (codev+stp->ci);
- const int ftab_size = stp->num_functions;
- const int num_instrs = stp->current_li;
+ const unsigned int ftab_size = stp->num_functions;
+ const unsigned int num_instrs = stp->current_li;
const BeamInstr** const line_items =
(const BeamInstr**) &line_tab->func_tab[ftab_size + 1];
@@ -4764,7 +4768,7 @@ freeze_code(LoaderState* stp)
static void
final_touch(LoaderState* stp, struct erl_module_instance* inst_p)
{
- int i;
+ unsigned int i;
int on_load = stp->on_load;
unsigned catches;
Uint index;
@@ -5436,7 +5440,7 @@ new_genop(LoaderState* stp)
static int
new_label(LoaderState* stp)
{
- int num = stp->num_labels;
+ unsigned int num = stp->num_labels;
stp->num_labels++;
stp->labels = (Label *) erts_realloc(ERTS_ALC_T_PREPARED_CODE,
@@ -6056,11 +6060,11 @@ stub_copy_info(LoaderState* stp,
static int
stub_read_export_table(LoaderState* stp)
{
- int i;
+ unsigned int i;
GetInt(stp, 4, stp->num_exps);
if (stp->num_exps > stp->num_functions) {
- LoadError2(stp, "%d functions exported; only %d functions defined",
+ LoadError2(stp, "%u functions exported; only %u functions defined",
stp->num_exps, stp->num_functions);
}
stp->export
@@ -6074,7 +6078,7 @@ stub_read_export_table(LoaderState* stp)
GetAtom(stp, n, stp->export[i].function);
GetInt(stp, 4, n);
if (n > MAX_REG) {
- LoadError2(stp, "export table entry %d: absurdly high arity %d", i, n);
+ LoadError2(stp, "export table entry %u: absurdly high arity %u", i, n);
}
stp->export[i].arity = n;
GetInt(stp, 4, n); /* Ignore label */
@@ -6088,8 +6092,8 @@ stub_read_export_table(LoaderState* stp)
static void
stub_final_touch(LoaderState* stp, BeamInstr* fp)
{
- int i;
- int n = stp->num_exps;
+ unsigned int i;
+ unsigned int n = stp->num_exps;
Eterm mod = fp[2];
Eterm function = fp[3];
int arity = fp[4];
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-23 13:19:59 +0000