Last change
on this file since 473 was 352, checked in by coas-nagasima, 6 years ago |
arm向けASP3版ECNLを追加
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File size:
963 bytes
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[352] | 1 | #define _GNU_SOURCE
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| 2 | #include <link.h>
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| 3 | #include <stdint.h>
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| 4 |
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| 5 | struct find_exidx_data {
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| 6 | uintptr_t pc, exidx_start;
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| 7 | int exidx_len;
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| 8 | };
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| 9 |
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| 10 | static int find_exidx(struct dl_phdr_info *info, size_t size, void *ptr)
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| 11 | {
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| 12 | struct find_exidx_data *data = ptr;
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| 13 | const ElfW(Phdr) *phdr = info->dlpi_phdr;
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| 14 | uintptr_t addr, exidx_start = 0;
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| 15 | int i, match = 0, exidx_len = 0;
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| 16 |
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| 17 | for (i = info->dlpi_phnum; i > 0; i--, phdr++) {
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| 18 | addr = info->dlpi_addr + phdr->p_vaddr;
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| 19 | switch (phdr->p_type) {
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| 20 | case PT_LOAD:
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| 21 | match |= data->pc >= addr && data->pc < addr + phdr->p_memsz;
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| 22 | break;
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| 23 | case PT_ARM_EXIDX:
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| 24 | exidx_start = addr;
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| 25 | exidx_len = phdr->p_memsz;
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| 26 | break;
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| 27 | }
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| 28 | }
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| 29 | data->exidx_start = exidx_start;
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| 30 | data->exidx_len = exidx_len;
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| 31 | return match;
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| 32 | }
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| 33 |
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| 34 | uintptr_t __gnu_Unwind_Find_exidx(uintptr_t pc, int *pcount)
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| 35 | {
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| 36 | struct find_exidx_data data;
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| 37 | data.pc = pc;
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| 38 | if (dl_iterate_phdr(find_exidx, &data) <= 0)
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| 39 | return 0;
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| 40 | *pcount = data.exidx_len / 8;
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| 41 | return data.exidx_start;
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| 42 | }
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