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Duplicate memory when creating a qfo from progs.

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Fixes some double-free bugs when linking after compiling.
This commit is contained in:
Bill Currie 2018-10-11 21:36:29 +09:00
parent f673ab9c3d
commit a096babb1f
1 changed files with 12 additions and 4 deletions
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16
tools/qfcc/source/obj_file.c
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@ -188,11 +188,13 @@ qfo_count_stuff (qfo_t *qfo, pr_info_t *pr)
static void
qfo_init_string_space (qfo_t *qfo, qfo_mspace_t *space, strpool_t *strings)
{
size_t size = strings->size * sizeof (*strings->strings);
strings->qfo_space = space - qfo->spaces;
space->type = qfos_string;
space->num_defs = 0;
space->defs = 0;
space->d.strings = strings->strings;
space->d.strings = malloc (size);
memcpy (space->d.strings, strings->strings, size);
space->data_size = strings->size;
space->id = qfo_strings_space;
}
@ -200,11 +202,13 @@ qfo_init_string_space (qfo_t *qfo, qfo_mspace_t *space, strpool_t *strings)
static void
qfo_init_code_space (qfo_t *qfo, qfo_mspace_t *space, codespace_t *code)
{
size_t size = code->size * sizeof (*code->code);
code->qfo_space = space - qfo->spaces;
space->type = qfos_code;
space->num_defs = 0;
space->defs = 0;
space->d.code = code->code;
space->d.code = malloc (size);
memcpy (space->d.code, code->code, size);
space->data_size = code->size;
space->id = qfo_code_space;
}
@ -213,11 +217,13 @@ static void
qfo_init_data_space (qfo_t *qfo, qfo_def_t **defs, qfo_reloc_t **relocs,
qfo_mspace_t *space, defspace_t *data)
{
size_t size = data->size * sizeof (*data->data);
data->qfo_space = space - qfo->spaces;
space->type = qfos_data;
space->defs = *defs;
space->num_defs = qfo_encode_defs (qfo, data->defs, defs, relocs);
space->d.data = data->data;
space->d.data = malloc (size);
memcpy (space->d.data, data->data, size);
space->data_size = data->size;
}
@ -238,11 +244,13 @@ static void
qfo_init_type_space (qfo_t *qfo, qfo_def_t **defs, qfo_reloc_t **relocs,
qfo_mspace_t *space, defspace_t *data)
{
size_t size = data->size * sizeof (*data->data);
data->qfo_space = space - qfo->spaces;
space->type = qfos_type;
space->defs = *defs;
space->num_defs = qfo_encode_defs (qfo, data->defs, defs, relocs);
space->d.data = data->data;
space->d.data = malloc (size);
memcpy (space->d.data, data->data, size);
space->data_size = data->size;
space->id = qfo_type_space;
}