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1 #include <elf.h> | 1 #include <elf.h> |
2 #include <link.h> | 2 #include <link.h> |
3 #include "libc.h" | 3 #include "libc.h" |
4 | 4 |
5 #define AUX_CNT 38 | 5 #define AUX_CNT 38 |
6 | 6 |
7 static int static_dl_iterate_phdr(int(*callback)(struct dl_phdr_info *info, size
_t size, void *data), void *data) | 7 static int static_dl_iterate_phdr(int (*callback)(struct dl_phdr_info* info, |
8 { | 8 size_t size, |
9 » unsigned char *p; | 9 void* data), |
10 » ElfW(Phdr) *phdr, *tls_phdr=0; | 10 void* data) { |
11 » size_t base = 0; | 11 unsigned char* p; |
12 » size_t n; | 12 ElfW(Phdr) * phdr, *tls_phdr = 0; |
13 » struct dl_phdr_info info; | 13 size_t base = 0; |
14 » size_t i, aux[AUX_CNT]; | 14 size_t n; |
| 15 struct dl_phdr_info info; |
| 16 size_t i, aux[AUX_CNT]; |
15 | 17 |
16 » for (i=0; libc.auxv[i]; i+=2) | 18 for (i = 0; libc.auxv[i]; i += 2) |
17 » » if (libc.auxv[i]<AUX_CNT) aux[libc.auxv[i]] = libc.auxv[i+1]; | 19 if (libc.auxv[i] < AUX_CNT) |
| 20 aux[libc.auxv[i]] = libc.auxv[i + 1]; |
18 | 21 |
19 » for (p=(void *)aux[AT_PHDR],n=aux[AT_PHNUM]; n; n--,p+=aux[AT_PHENT]) { | 22 for (p = (void*)aux[AT_PHDR], n = aux[AT_PHNUM]; n; n--, p += aux[AT_PHENT]) { |
20 » » phdr = (void *)p; | 23 phdr = (void*)p; |
21 » » if (phdr->p_type == PT_PHDR) | 24 if (phdr->p_type == PT_PHDR) |
22 » » » base = aux[AT_PHDR] - phdr->p_vaddr; | 25 base = aux[AT_PHDR] - phdr->p_vaddr; |
23 » » if (phdr->p_type == PT_TLS) | 26 if (phdr->p_type == PT_TLS) |
24 » » » tls_phdr = phdr; | 27 tls_phdr = phdr; |
25 » } | 28 } |
26 » info.dlpi_addr = base; | 29 info.dlpi_addr = base; |
27 » info.dlpi_name = "/proc/self/exe"; | 30 info.dlpi_name = "/proc/self/exe"; |
28 » info.dlpi_phdr = (void *)aux[AT_PHDR]; | 31 info.dlpi_phdr = (void*)aux[AT_PHDR]; |
29 » info.dlpi_phnum = aux[AT_PHNUM]; | 32 info.dlpi_phnum = aux[AT_PHNUM]; |
30 » info.dlpi_adds = 0; | 33 info.dlpi_adds = 0; |
31 » info.dlpi_subs = 0; | 34 info.dlpi_subs = 0; |
32 » if (tls_phdr) { | 35 if (tls_phdr) { |
33 » » info.dlpi_tls_modid = 1; | 36 info.dlpi_tls_modid = 1; |
34 » » info.dlpi_tls_data = (void *)(base + tls_phdr->p_vaddr); | 37 info.dlpi_tls_data = (void*)(base + tls_phdr->p_vaddr); |
35 » } else { | 38 } else { |
36 » » info.dlpi_tls_modid = 0; | 39 info.dlpi_tls_modid = 0; |
37 » » info.dlpi_tls_data = 0; | 40 info.dlpi_tls_data = 0; |
38 » } | 41 } |
39 » return (callback)(&info, sizeof (info), data); | 42 return (callback)(&info, sizeof(info), data); |
40 } | 43 } |
41 | 44 |
42 weak_alias(static_dl_iterate_phdr, dl_iterate_phdr); | 45 weak_alias(static_dl_iterate_phdr, dl_iterate_phdr); |
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