forked from Imagelibrary/binutils-gdb
cf44c9fa1b
Whenever a memory tag violation occurs, we get a SIGSEGV. Additional information can be obtained through the siginfo data structure. For AArch64 the Linux kernel may expose the fault address and tag information, if we have a synchronous event. Otherwise there is no fault address available. The synchronous event looks like this: -- (gdb) continue Continuing. Program received signal SIGSEGV, Segmentation fault Memory tag violation while accessing address 0x0500fffff7ff8000 Allocation tag 0x1. Logical tag 0x5 -- The asynchronous event looks like this: -- (gdb) continue Continuing. Program received signal SIGSEGV, Segmentation fault Memory tag violation Fault address unavailable. -- gdb/ChangeLog: 2021-03-24 Luis Machado <luis.machado@linaro.org> * aarch64-linux-tdep.c (aarch64_linux_report_signal_info): New function. (aarch64_linux_init_abi): Register aarch64_linux_report_signal_info as the report_signal_info hook. * arch/aarch64-linux.h (SEGV_MTEAERR): Define. (SEGV_MTESERR): Define.