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add some printing

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This commit is contained in:
Kasper
2025-04-14 23:54:39 +03:00
parent 54b9ec7404
commit dcf863bf26
3 changed files with 180 additions and 95 deletions
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111
src/moduler/elf.c
View File

@@ -1,3 +1,112 @@
#include "elf.h" #include "elf.h"
#include <libelf.h>
const char *dyn_type_to_str(unsigned type) {
// clang-format off
switch (type) {
case DT_NULL: return "NULL";
case DT_NEEDED: return "NEEDED";
case DT_PLTRELSZ: return "PLTRELSZ";
case DT_PLTGOT: return "PLTGOT";
case DT_HASH: return "HASH";
case DT_STRTAB: return "STRTAB";
case DT_SYMTAB: return "SYMTAB";
case DT_RELA: return "RELA";
case DT_RELASZ: return "RELASZ";
case DT_RELAENT: return "RELAENT";
case DT_STRSZ: return "STRSZ";
case DT_SYMENT: return "SYMENT";
case DT_INIT: return "INIT";
case DT_FINI: return "FINI";
case DT_SONAME: return "SONAME";
case DT_RPATH: return "RPATH";
case DT_SYMBOLIC: return "SYMBOLIC";
case DT_REL: return "REL";
case DT_RELSZ: return "RELSZ";
case DT_RELENT: return "RELENT";
case DT_PLTREL: return "PLTREL";
case DT_DEBUG: return "DEBUG";
case DT_TEXTREL: return "TEXTREL";
case DT_JMPREL: return "JMPREL";
case DT_BIND_NOW: return "BIND_NOW";
case DT_INIT_ARRAY: return "INIT_ARRAY";
case DT_FINI_ARRAY: return "FINI_ARRAY";
case DT_INIT_ARRAYSZ: return "INIT_ARRAYSZ";
case DT_FINI_ARRAYSZ: return "FINI_ARRAYSZ";
case DT_RUNPATH: return "RUNPATH";
case DT_FLAGS: return "FLAGS";
case DT_PREINIT_ARRAY: return "ENCODING/PREINIT_ARRAY";
case DT_PREINIT_ARRAYSZ: return "PREINIT_ARRAYSZ";
case DT_SYMTAB_SHNDX: return "SYMTAB_SHNDX";
case DT_RELRSZ: return "RELRSZ";
case DT_RELR: return "RELR";
case DT_RELRENT: return "RELRENT";
case DT_NUM: return "NUM";
case DT_LOOS: return "LOOS";
case DT_HIOS: return "HIOS";
case DT_LOPROC: return "LOPROC";
case DT_HIPROC: return "HIPROC";
case DT_PROCNUM: return "PROCNUM";
case DT_VALRNGLO: return "VALRNGLO";
case DT_GNU_PRELINKED: return "GNU_PRELINKED";
case DT_GNU_CONFLICTSZ: return "GNU_CONFLICTSZ";
case DT_GNU_LIBLISTSZ: return "GNU_LIBLISTSZ";
case DT_CHECKSUM: return "CHECKSUM";
case DT_PLTPADSZ: return "PLTPADSZ";
case DT_MOVEENT: return "MOVEENT";
case DT_MOVESZ: return "MOVESZ";
case DT_FEATURE_1: return "FEATURE_1";
case DT_POSFLAG_1: return "POSFLAG_1";
case DT_SYMINSZ: return "SYMINSZ";
case DT_SYMINENT: return "SYMINENT/VALRNGHI";
case DT_ADDRRNGLO: return "ADDRRNGLO";
case DT_GNU_HASH: return "GNU_HASH";
case DT_TLSDESC_PLT: return "TLSDESC_PLT";
case DT_TLSDESC_GOT: return "TLSDESC_GOT";
case DT_GNU_CONFLICT: return "GNU_CONFLICT";
case DT_GNU_LIBLIST: return "GNU_LIBLIST";
case DT_CONFIG: return "CONFIG";
case DT_DEPAUDIT: return "DEPAUDIT";
case DT_AUDIT: return "AUDIT";
case DT_PLTPAD: return "PLTPAD";
case DT_MOVETAB: return "MOVETAB";
case DT_SYMINFO: return "SYMINFO/ADDRRNGHI";
case DT_VERSYM: return "VERSYM";
case DT_RELACOUNT: return "RELACOUNT";
case DT_RELCOUNT: return "RELCOUNT";
case DT_FLAGS_1: return "FLAGS_1";
case DT_VERDEF: return "VERDEF";
case DT_VERDEFNUM: return "VERDEFNUM";
case DT_VERNEED: return "VERNEED";
case DT_VERNEEDNUM: return "VERNEEDNUM";
default: return "UNKNOWN";
}
// clang-format on
}
const char *segment_type_to_str(unsigned type) {
// clang-format off
switch (type) {
case PT_NULL: return "NULL";
case PT_LOAD: return "LOAD";
case PT_DYNAMIC: return "DYNAMIC";
case PT_INTERP: return "INTERP";
case PT_NOTE: return "NOTE";
case PT_SHLIB: return "SHLIB";
case PT_PHDR: return "PHDR";
case PT_TLS: return "TLS";
case PT_NUM: return "NUM";
case PT_LOOS: return "LOOS";
case PT_GNU_EH_FRAME: return "GNU_EH_FRAME";
case PT_GNU_STACK: return "GNU_STACK";
case PT_GNU_RELRO: return "GNU_RELRO";
case PT_GNU_PROPERTY: return "GNU_PROPERTY";
case PT_LOSUNW: return "LOSUNW/SUNWBSS";
case PT_SUNWSTACK: return "SUNWSTACK";
case PT_HIOS: return "HIOS";
case PT_LOPROC: return "LOPROC";
case PT_HIPROC: return "HIPROC";
default: return "UNKNOWN";
}
// clang-format on
}

79
src/moduler/elf.h
View File

@@ -3,82 +3,7 @@
#include <libelf.h> #include <libelf.h>
static inline const char *dyn_type_to_str(unsigned type) { const char *dyn_type_to_str(unsigned type);
// clang-format off const char *segment_type_to_str(unsigned type);
switch (type) {
case DT_NULL: return "NULL";
case DT_NEEDED: return "NEEDED";
case DT_PLTRELSZ: return "PLTRELSZ";
case DT_PLTGOT: return "PLTGOT";
case DT_HASH: return "HASH";
case DT_STRTAB: return "STRTAB";
case DT_SYMTAB: return "SYMTAB";
case DT_RELA: return "RELA";
case DT_RELASZ: return "RELASZ";
case DT_RELAENT: return "RELAENT";
case DT_STRSZ: return "STRSZ";
case DT_SYMENT: return "SYMENT";
case DT_INIT: return "INIT";
case DT_FINI: return "FINI";
case DT_SONAME: return "SONAME";
case DT_RPATH: return "RPATH";
case DT_SYMBOLIC: return "SYMBOLIC";
case DT_REL: return "REL";
case DT_RELSZ: return "RELSZ";
case DT_RELENT: return "RELENT";
case DT_PLTREL: return "PLTREL";
case DT_DEBUG: return "DEBUG";
case DT_TEXTREL: return "TEXTREL";
case DT_JMPREL: return "JMPREL";
case DT_BIND_NOW: return "BIND_NOW";
case DT_INIT_ARRAY: return "INIT_ARRAY";
case DT_FINI_ARRAY: return "FINI_ARRAY";
case DT_INIT_ARRAYSZ: return "INIT_ARRAYSZ";
case DT_FINI_ARRAYSZ: return "FINI_ARRAYSZ";
case DT_RUNPATH: return "RUNPATH";
case DT_FLAGS: return "FLAGS";
case DT_PREINIT_ARRAY: return "ENCODING/PREINIT_ARRAY";
case DT_PREINIT_ARRAYSZ: return "PREINIT_ARRAYSZ";
case DT_SYMTAB_SHNDX: return "SYMTAB_SHNDX";
case DT_RELRSZ: return "RELRSZ";
case DT_RELR: return "RELR";
case DT_RELRENT: return "RELRENT";
case DT_NUM: return "NUM";
case DT_LOOS: return "LOOS";
case DT_HIOS: return "HIOS";
case DT_LOPROC: return "LOPROC";
case DT_HIPROC: return "HIPROC";
case DT_PROCNUM: return "PROCNUM";
default: return "UNKNOWN";
}
// clang-format on
}
static inline const char *segment_type_to_str(unsigned type) {
// clang-format off
switch (type) {
case PT_NULL: return "NULL";
case PT_LOAD: return "LOAD";
case PT_DYNAMIC: return "DYNAMIC";
case PT_INTERP: return "INTERP";
case PT_NOTE: return "NOTE";
case PT_SHLIB: return "SHLIB";
case PT_PHDR: return "PHDR";
case PT_TLS: return "TLS";
case PT_NUM: return "NUM";
case PT_LOOS: return "LOOS";
case PT_GNU_EH_FRAME: return "GNU_EH_FRAME";
case PT_GNU_STACK: return "GNU_STACK";
case PT_GNU_RELRO: return "GNU_RELRO";
case PT_GNU_PROPERTY: return "GNU_PROPERTY";
case PT_LOSUNW: return "LOSUNW/SUNWBSS";
case PT_SUNWSTACK: return "SUNWSTACK";
case PT_HIOS: return "HIOS";
case PT_LOPROC: return "LOPROC";
case PT_HIPROC: return "HIPROC";
default: return "UNKNOWN";
}
// clang-format on
}
#endif #endif

57
src/moduler/moduler.c
View File

@@ -1,8 +1,8 @@
#include "moduler.h" #include "moduler.h"
#include "logger/logger.h" #include "logger/logger.h"
#include "moduler/elf.h"
#include "memory.h" #include "memory.h"
#include "moduler/elf.h"
#include "types.h" #include "types.h"
HiloadResult moduler_reload(ModuleInfos *modinfos, HiloadResult moduler_reload(ModuleInfos *modinfos,
@@ -13,8 +13,8 @@ HiloadResult moduler_reload(ModuleInfos *modinfos,
log_debugv("Module: %s - [%p, %p]\n", modname, memspan.region_start, log_debugv("Module: %s - [%p, %p]\n", modname, memspan.region_start,
memspan.region_end); memspan.region_end);
Elf *elf = elf_memory((void *)memspan.region_start,
Elf *elf = elf_memory((void*)memspan.region_start, memspan.region_end - memspan.region_start); memspan.region_end - memspan.region_start);
int err = elf_errno(); int err = elf_errno();
if (err) { if (err) {
log_error("%s\n", elf_errmsg(err)); log_error("%s\n", elf_errmsg(err));
@@ -34,13 +34,64 @@ HiloadResult moduler_reload(ModuleInfos *modinfos,
void *segment_start = module_address + p->p_vaddr; void *segment_start = module_address + p->p_vaddr;
void *segment_end = module_address + p->p_vaddr + segment_size; void *segment_end = module_address + p->p_vaddr + segment_size;
void *strtab = 0;
void *symtab = 0;
size_t strsz = 0;
size_t syment = 0;
void *rela = 0;
size_t relasz = 0;
size_t relaent = 0;
size_t relacount = 0;
void *pltgot = 0;
size_t pltrelsz = 0;
void *pltrel = 0;
if (p->p_type == PT_DYNAMIC) { if (p->p_type == PT_DYNAMIC) {
Elf64_Dyn *dyn = (Elf64_Dyn *)segment_start; Elf64_Dyn *dyn = (Elf64_Dyn *)segment_start;
while ((void *)dyn < segment_end) { while ((void *)dyn < segment_end) {
log_debugv(" dyn type: %s\n", dyn_type_to_str(dyn->d_tag)); log_debugv(" dyn type: %s\n", dyn_type_to_str(dyn->d_tag));
if (dyn->d_tag == DT_STRTAB) {
strtab = (void *)dyn->d_un.d_ptr;
} else if (dyn->d_tag == DT_SYMTAB) {
symtab = (void *)dyn->d_un.d_ptr;
} else if (dyn->d_tag == DT_STRSZ) {
strsz = dyn->d_un.d_val;
} else if (dyn->d_tag == DT_SYMENT) {
syment = dyn->d_un.d_val;
} else if (dyn->d_tag == DT_RELA) {
rela = (void *)dyn->d_un.d_ptr;
} else if (dyn->d_tag == DT_RELASZ) {
relasz = dyn->d_un.d_val;
} else if (dyn->d_tag == DT_RELAENT) {
relaent = dyn->d_un.d_val;
} else if (dyn->d_tag == DT_RELACOUNT) {
relacount = dyn->d_un.d_val;
} else if (dyn->d_tag == DT_PLTGOT) {
pltgot = (void *)dyn->d_un.d_ptr;
} else if (dyn->d_tag == DT_PLTRELSZ) {
pltrelsz = dyn->d_un.d_val;
} else if (dyn->d_tag == DT_PLTREL) {
pltrel = (void *)dyn->d_un.d_val;
}
++dyn; ++dyn;
} }
printf("strtab: %p\n"
"symtab: %p\n"
"strsz: %zu\n"
"syment: %zu\n"
"rela: %p\n"
"relasz: %zu\n"
"relaent: %zu\n"
"relacount: %zu\n"
"pltgot: %p\n"
"pltrelsz: %zu\n"
"pltrel: %p\n",
strtab, symtab, strsz, syment, rela, relasz, relaent, relacount,
pltgot, pltrelsz, pltrel);
} }
} }
modinfos->state[modindex] = HI_MODULE_STATE_CLEAN; modinfos->state[modindex] = HI_MODULE_STATE_CLEAN;