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- Python static hello world now 1.8mb
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- Begin synthesizing posixpath and ntpath
- Restore Python \N{UNICODE NAME} support
- Restore Python NFKD symbol normalization
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- Add Mersenne Twister and Vigna to LIBC_RAND
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62 lines
1.6 KiB
C
62 lines
1.6 KiB
C
#ifndef COSMOPOLITAN_LIBC_SYMBOLS_H_
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#define COSMOPOLITAN_LIBC_SYMBOLS_H_
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#include "libc/assert.h"
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#include "libc/elf/elf.h"
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#include "libc/runtime/ezmap.internal.h"
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#if !(__ASSEMBLER__ + __LINKER__ + 0)
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COSMOPOLITAN_C_START_
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struct Symbol {
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unsigned x; /* start (relative to addr_base) */
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unsigned y; /* start + size - 1 (inclusive) */
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};
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struct SymbolTable {
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size_t count; /* of `symbols` */
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size_t mapsize; /* of this object */
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intptr_t addr_base; /* IMAGE_BASE_VIRTUAL */
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intptr_t addr_end; /* _end - 1 */
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unsigned *names; /* relative to `name_base` */
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char *name_base; /* double-nul terminated w/ empty first */
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struct Symbol symbols[]; /* sorted and non-overlapping intervals */
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};
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struct SymbolTable *GetSymbolTable(void);
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const char *FindComBinary(void);
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const char *FindDebugBinary(void);
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struct SymbolTable *OpenSymbolTable(const char *) nodiscard;
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int CloseSymbolTable(struct SymbolTable **);
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void __hook(void *, struct SymbolTable *);
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forceinline int GetSymbol(struct SymbolTable *t, intptr_t a) {
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unsigned l, m, r, n, k;
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if (t) {
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l = 0;
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r = n = t->count;
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k = a - t->addr_base;
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while (l < r) {
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m = (l + r) >> 1;
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if (t->symbols[m].y < k) {
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l = m + 1;
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} else {
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r = m;
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}
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}
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if (l < n && t->symbols[l].x <= k && k <= t->symbols[l].y) {
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return l;
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}
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}
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return -1;
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}
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forceinline char *GetSymbolName(struct SymbolTable *t, int s) {
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if (t && s != -1) {
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return t->name_base + t->names[s];
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} else {
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return 0;
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}
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}
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COSMOPOLITAN_C_END_
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#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
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#endif /* COSMOPOLITAN_LIBC_SYMBOLS_H_ */
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