diff options
Diffstat (limited to 'gdb/alpha-linux-tdep.c')
| -rw-r--r-- | gdb/alpha-linux-tdep.c | 142 |
1 files changed, 142 insertions, 0 deletions
diff --git a/gdb/alpha-linux-tdep.c b/gdb/alpha-linux-tdep.c index 9efc5bd..8cb087e 100644 --- a/gdb/alpha-linux-tdep.c +++ b/gdb/alpha-linux-tdep.c @@ -28,6 +28,35 @@ #include "linux-tdep.h" #include "alpha-tdep.h" +/* This enum represents the signals' numbers on the Alpha + architecture. It just contains the signal definitions which are + different from the generic implementation. + + It is derived from the file <arch/alpha/include/uapi/asm/signal.h>, + from the Linux kernel tree. */ + +enum + { + /* SIGABRT is the same as in the generic implementation, but is + defined here because SIGIOT depends on it. */ + ALPHA_LINUX_SIGABRT = 6, + ALPHA_LINUX_SIGEMT = 7, + ALPHA_LINUX_SIGBUS = 10, + ALPHA_LINUX_SIGSYS = 12, + ALPHA_LINUX_SIGURG = 16, + ALPHA_LINUX_SIGSTOP = 17, + ALPHA_LINUX_SIGTSTP = 18, + ALPHA_LINUX_SIGCONT = 19, + ALPHA_LINUX_SIGCHLD = 20, + ALPHA_LINUX_SIGIO = 23, + ALPHA_LINUX_SIGINFO = 29, + ALPHA_LINUX_SIGUSR1 = 30, + ALPHA_LINUX_SIGUSR2 = 31, + ALPHA_LINUX_SIGPOLL = ALPHA_LINUX_SIGIO, + ALPHA_LINUX_SIGPWR = ALPHA_LINUX_SIGINFO, + ALPHA_LINUX_SIGIOT = ALPHA_LINUX_SIGABRT, + }; + /* Under GNU/Linux, signal handler invocations can be identified by the designated code sequence that is used to return from a signal handler. In particular, the return address of a signal handler @@ -205,6 +234,114 @@ alpha_linux_regset_from_core_section (struct gdbarch *gdbarch, return NULL; } +/* Implementation of `gdbarch_gdb_signal_from_target', as defined in + gdbarch.h. */ + +static enum gdb_signal +alpha_linux_gdb_signal_from_target (struct gdbarch *gdbarch, + int signal) +{ + switch (signal) + { + case ALPHA_LINUX_SIGEMT: + return GDB_SIGNAL_EMT; + + case ALPHA_LINUX_SIGBUS: + return GDB_SIGNAL_BUS; + + case ALPHA_LINUX_SIGSYS: + return GDB_SIGNAL_SYS; + + case ALPHA_LINUX_SIGURG: + return GDB_SIGNAL_URG; + + case ALPHA_LINUX_SIGSTOP: + return GDB_SIGNAL_STOP; + + case ALPHA_LINUX_SIGTSTP: + return GDB_SIGNAL_TSTP; + + case ALPHA_LINUX_SIGCONT: + return GDB_SIGNAL_CONT; + + case ALPHA_LINUX_SIGCHLD: + return GDB_SIGNAL_CHLD; + + /* No way to differentiate between SIGIO and SIGPOLL. + Therefore, we just handle the first one. */ + case ALPHA_LINUX_SIGIO: + return GDB_SIGNAL_IO; + + /* No way to differentiate between SIGINFO and SIGPWR. + Therefore, we just handle the first one. */ + case ALPHA_LINUX_SIGINFO: + return GDB_SIGNAL_INFO; + + case ALPHA_LINUX_SIGUSR1: + return GDB_SIGNAL_USR1; + + case ALPHA_LINUX_SIGUSR2: + return GDB_SIGNAL_USR2; + } + + return linux_gdb_signal_from_target (gdbarch, signal); +} + +/* Implementation of `gdbarch_gdb_signal_to_target', as defined in + gdbarch.h. */ + +static int +alpha_linux_gdb_signal_to_target (struct gdbarch *gdbarch, + enum gdb_signal signal) +{ + switch (signal) + { + case GDB_SIGNAL_EMT: + return ALPHA_LINUX_SIGEMT; + + case GDB_SIGNAL_BUS: + return ALPHA_LINUX_SIGBUS; + + case GDB_SIGNAL_SYS: + return ALPHA_LINUX_SIGSYS; + + case GDB_SIGNAL_URG: + return ALPHA_LINUX_SIGURG; + + case GDB_SIGNAL_STOP: + return ALPHA_LINUX_SIGSTOP; + + case GDB_SIGNAL_TSTP: + return ALPHA_LINUX_SIGTSTP; + + case GDB_SIGNAL_CONT: + return ALPHA_LINUX_SIGCONT; + + case GDB_SIGNAL_CHLD: + return ALPHA_LINUX_SIGCHLD; + + case GDB_SIGNAL_IO: + return ALPHA_LINUX_SIGIO; + + case GDB_SIGNAL_INFO: + return ALPHA_LINUX_SIGINFO; + + case GDB_SIGNAL_USR1: + return ALPHA_LINUX_SIGUSR1; + + case GDB_SIGNAL_USR2: + return ALPHA_LINUX_SIGUSR2; + + case GDB_SIGNAL_POLL: + return ALPHA_LINUX_SIGPOLL; + + case GDB_SIGNAL_PWR: + return ALPHA_LINUX_SIGPWR; + } + + return linux_gdb_signal_to_target (gdbarch, signal); +} + static void alpha_linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch) { @@ -236,6 +373,11 @@ alpha_linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch) set_gdbarch_regset_from_core_section (gdbarch, alpha_linux_regset_from_core_section); + + set_gdbarch_gdb_signal_from_target (gdbarch, + alpha_linux_gdb_signal_from_target); + set_gdbarch_gdb_signal_to_target (gdbarch, + alpha_linux_gdb_signal_to_target); } /* Provide a prototype to silence -Wmissing-prototypes. */ |