diff options
| author | Jari Vetoniemi <mailroxas@gmail.com> | 2018-02-27 13:41:27 +0200 |
|---|---|---|
| committer | Jari Vetoniemi <mailroxas@gmail.com> | 2018-02-27 13:43:09 +0200 |
| commit | b17cf07336199d7e23b8c6a2d6e948e1a50bf07c (patch) | |
| tree | 019f4663f5683fef88e6e9b265e339f982068c0a /src/linker | |
| parent | 1dcb1252566a9fa9e1c2b008b78b3eb5614f5bda (diff) | |
linker: Hacks
Diffstat (limited to 'src/linker')
| -rw-r--r-- | src/linker/dlfcn.c | 9 | ||||
| -rw-r--r-- | src/linker/linker.c | 2 |
2 files changed, 10 insertions, 1 deletions
diff --git a/src/linker/dlfcn.c b/src/linker/dlfcn.c index b8d2914..5fb6899 100644 --- a/src/linker/dlfcn.c +++ b/src/linker/dlfcn.c @@ -22,6 +22,7 @@ #include "linker_format.h" #include "wrapper/wrapper.h" +#include "wrapper/verbose.h" #include "linker_debug.h" #ifdef APKENV_DEBUG @@ -63,8 +64,8 @@ static void set_dlerror(int err) void *bionic_dlopen(const char *filename, int flag) { + verbose("%s (%d)", filename, flag); soinfo *ret; - pthread_mutex_lock(&apkenv_dl_lock); ret = apkenv_find_library(filename); @@ -93,16 +94,20 @@ enum { void *bionic_dlsym(void *handle, const char *symbol) { + verbose("%p, %s", handle, symbol); + soinfo *found; Elf32_Sym *sym; unsigned bind; pthread_mutex_lock(&apkenv_dl_lock); +#if 0 if(unlikely(handle == 0)) { set_dlerror(DL_ERR_INVALID_LIBRARY_HANDLE); goto err; } +#endif if(unlikely(symbol == 0)) { set_dlerror(DL_ERR_BAD_SYMBOL_NAME); goto err; @@ -113,9 +118,11 @@ void *bionic_dlsym(void *handle, const char *symbol) memcpy(wrap_sym_name + 7, symbol, MIN(sizeof(wrap_sym_name) - 7, strlen(symbol))); if ((sym = dlsym(RTLD_DEFAULT, wrap_sym_name))) { pthread_mutex_unlock(&apkenv_dl_lock); + verbose("found bionic_ version"); return wrapper_create(symbol, sym); } else if ((sym = dlsym(RTLD_DEFAULT, symbol))) { pthread_mutex_unlock(&apkenv_dl_lock); + verbose("found system version"); return wrapper_create(symbol, sym); } } diff --git a/src/linker/linker.c b/src/linker/linker.c index 0927164..e72b9aa 100644 --- a/src/linker/linker.c +++ b/src/linker/linker.c @@ -1372,6 +1372,8 @@ static int apkenv_reloc_library(soinfo *si, Elf32_Rel *rel, unsigned count) if ((sym_addr = (intptr_t)dlsym(RTLD_DEFAULT, wrap_sym_name))) { LINKER_DEBUG_PRINTF("%s hooked symbol %s to %x\n", si->name, wrap_sym_name, sym_addr); } else if ((sym_addr = (intptr_t)dlsym(RTLD_DEFAULT, sym_name))) { + if (strstr(sym_name, "pthread_")) + fprintf(stderr, "symbol may need to be wrapped: %s\n", sym_name); LINKER_DEBUG_PRINTF("%s hooked symbol %s to %x\n", si->name, sym_name, sym_addr); } #if 0 |