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https://github.com/micropython/micropython.git
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1857e62fdc
This fixes compilation of the `re` natmod example when built with Picolibc in the CI environment. Ubuntu 22.04's combination of its bare metal RISC-V toolchain and its version of Picolibc makes the `alloca` symbol more elusive than it should be. This commit makes the `re` natmod try harder to get an `alloca` implementation. Signed-off-by: Alessandro Gatti <a.gatti@frob.it>
92 lines
3.3 KiB
C
92 lines
3.3 KiB
C
#define MICROPY_STACK_CHECK (1)
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#define MICROPY_PY_RE (1)
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#define MICROPY_PY_RE_MATCH_GROUPS (1)
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#define MICROPY_PY_RE_MATCH_SPAN_START_END (1)
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#define MICROPY_PY_RE_SUB (0) // requires vstr interface
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#if defined __has_builtin
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#if __has_builtin(__builtin_alloca)
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#define alloca __builtin_alloca
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#endif
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#endif
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#if !defined(alloca)
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#if defined(_PICOLIBC__) && !defined(HAVE_BUILTIN_ALLOCA)
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#define alloca(n) m_malloc(n)
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#else
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#include <alloca.h>
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#endif
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#endif
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#include "py/dynruntime.h"
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#define STACK_LIMIT (2048)
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const char *stack_top;
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void mp_cstack_check(void) {
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// Assumes descending stack on target
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volatile char dummy;
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if (stack_top - &dummy >= STACK_LIMIT) {
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mp_raise_msg(&mp_type_RuntimeError, MP_ERROR_TEXT("maximum recursion depth exceeded"));
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}
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}
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#if !defined(__linux__)
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void *memcpy(void *dst, const void *src, size_t n) {
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return mp_fun_table.memmove_(dst, src, n);
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}
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void *memset(void *s, int c, size_t n) {
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return mp_fun_table.memset_(s, c, n);
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}
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#endif
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void *memmove(void *dest, const void *src, size_t n) {
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return mp_fun_table.memmove_(dest, src, n);
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}
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mp_obj_full_type_t match_type;
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mp_obj_full_type_t re_type;
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#include "extmod/modre.c"
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mp_map_elem_t match_locals_dict_table[5];
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static MP_DEFINE_CONST_DICT(match_locals_dict, match_locals_dict_table);
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mp_map_elem_t re_locals_dict_table[3];
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static MP_DEFINE_CONST_DICT(re_locals_dict, re_locals_dict_table);
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mp_obj_t mpy_init(mp_obj_fun_bc_t *self, size_t n_args, size_t n_kw, mp_obj_t *args) {
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MP_DYNRUNTIME_INIT_ENTRY
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char dummy;
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stack_top = &dummy;
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// Because MP_QSTR_start/end/split are static, xtensa and xtensawin will make a small data section
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// to copy in this key/value pair if they are specified as a struct, so assign them separately.
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match_type.base.type = (void*)&mp_fun_table.type_type;
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match_type.name = MP_QSTR_match;
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MP_OBJ_TYPE_SET_SLOT(&match_type, print, match_print, 0);
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match_locals_dict_table[0] = (mp_map_elem_t){ MP_OBJ_NEW_QSTR(MP_QSTR_group), MP_OBJ_FROM_PTR(&match_group_obj) };
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match_locals_dict_table[1] = (mp_map_elem_t){ MP_OBJ_NEW_QSTR(MP_QSTR_groups), MP_OBJ_FROM_PTR(&match_groups_obj) };
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match_locals_dict_table[2] = (mp_map_elem_t){ MP_OBJ_NEW_QSTR(MP_QSTR_span), MP_OBJ_FROM_PTR(&match_span_obj) };
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match_locals_dict_table[3] = (mp_map_elem_t){ MP_OBJ_NEW_QSTR(MP_QSTR_start), MP_OBJ_FROM_PTR(&match_start_obj) };
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match_locals_dict_table[4] = (mp_map_elem_t){ MP_OBJ_NEW_QSTR(MP_QSTR_end), MP_OBJ_FROM_PTR(&match_end_obj) };
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MP_OBJ_TYPE_SET_SLOT(&match_type, locals_dict, (void*)&match_locals_dict, 1);
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re_type.base.type = (void*)&mp_fun_table.type_type;
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re_type.name = MP_QSTR_re;
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MP_OBJ_TYPE_SET_SLOT(&re_type, print, re_print, 0);
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re_locals_dict_table[0] = (mp_map_elem_t){ MP_OBJ_NEW_QSTR(MP_QSTR_match), MP_OBJ_FROM_PTR(&re_match_obj) };
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re_locals_dict_table[1] = (mp_map_elem_t){ MP_OBJ_NEW_QSTR(MP_QSTR_search), MP_OBJ_FROM_PTR(&re_search_obj) };
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re_locals_dict_table[2] = (mp_map_elem_t){ MP_OBJ_NEW_QSTR(MP_QSTR_split), MP_OBJ_FROM_PTR(&re_split_obj) };
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MP_OBJ_TYPE_SET_SLOT(&re_type, locals_dict, (void*)&re_locals_dict, 1);
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mp_store_global(MP_QSTR_compile, MP_OBJ_FROM_PTR(&mod_re_compile_obj));
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mp_store_global(MP_QSTR_match, MP_OBJ_FROM_PTR(&re_match_obj));
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mp_store_global(MP_QSTR_search, MP_OBJ_FROM_PTR(&re_search_obj));
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MP_DYNRUNTIME_INIT_EXIT
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}
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