diff options
Diffstat (limited to 'vm_dump.c')
| -rw-r--r-- | vm_dump.c | 7 |
1 files changed, 6 insertions, 1 deletions
@@ -452,8 +452,13 @@ int backtrace (void **trace, int size) { } return n; darwin_sigtramp: + /* darwin's bundled libunwind doesn't support signal trampoline */ { ucontext_t *uctx; + /* get _sigtramp's ucontext_t and set values to cursor + * http://www.opensource.apple.com/source/Libc/Libc-825.25/i386/sys/_sigtramp.s + * http://www.opensource.apple.com/source/libunwind/libunwind-35.1/src/unw_getcontext.s + */ unw_get_reg(&cursor, UNW_X86_64_RBX, &ip); uctx = (ucontext_t *)ip; unw_set_reg(&cursor, UNW_X86_64_RAX, uctx->uc_mcontext->__ss.__rax); @@ -474,7 +479,7 @@ darwin_sigtramp: unw_set_reg(&cursor, UNW_X86_64_R15, uctx->uc_mcontext->__ss.__r15); ip = *(unw_word_t*)uctx->uc_mcontext->__ss.__rsp; unw_set_reg(&cursor, UNW_REG_IP, ip); - trace[n++] = (void *)(unw_word_t)uctx->uc_mcontext->__ss.__rip; + trace[n++] = (void *)uctx->uc_mcontext->__ss.__rip; trace[n++] = (void *)ip; } while (unw_step(&cursor) > 0) { |