diff options
Diffstat (limited to 'contrib/gdb/gdb/signals/signals.c')
| -rw-r--r-- | contrib/gdb/gdb/signals/signals.c | 86 |
1 files changed, 36 insertions, 50 deletions
diff --git a/contrib/gdb/gdb/signals/signals.c b/contrib/gdb/gdb/signals/signals.c index 774d70a..c808d1f 100644 --- a/contrib/gdb/gdb/signals/signals.c +++ b/contrib/gdb/gdb/signals/signals.c @@ -25,10 +25,25 @@ #else #include "defs.h" #include "target.h" +#include "gdb_string.h" #endif #include <signal.h> +/* Always use __SIGRTMIN if it's available. SIGRTMIN is the lowest + _available_ realtime signal, not the lowest supported; glibc takes + several for its own use. */ + +#ifndef REALTIME_LO +# if defined(__SIGRTMIN) +# define REALTIME_LO __SIGRTMIN +# define REALTIME_HI __SIGRTMAX +# elif defined(SIGRTMIN) +# define REALTIME_LO SIGRTMIN +# define REALTIME_HI SIGRTMAX +# endif +#endif + /* This table must match in order and size the signals in enum target_signal in target.h. */ /* *INDENT-OFF* */ @@ -180,7 +195,11 @@ static struct { {"SIG126", "Real-time event 126"}, {"SIG127", "Real-time event 127"}, -#if defined(MACH) || defined(__MACH__) + {"SIGINFO", "Information request"}, + + {NULL, "Unknown signal"}, + {NULL, "Internal error: printing TARGET_SIGNAL_DEFAULT"}, + /* Mach exceptions */ {"EXC_BAD_ACCESS", "Could not access memory"}, {"EXC_BAD_INSTRUCTION", "Illegal instruction/operand"}, @@ -188,11 +207,6 @@ static struct { {"EXC_EMULATION", "Emulation instruction"}, {"EXC_SOFTWARE", "Software generated exception"}, {"EXC_BREAKPOINT", "Breakpoint"}, -#endif - {"SIGINFO", "Information request"}, - - {NULL, "Unknown signal"}, - {NULL, "Internal error: printing TARGET_SIGNAL_DEFAULT"}, /* Last entry, used to check whether the table is the right size. */ {NULL, "TARGET_SIGNAL_MAGIC"} @@ -237,9 +251,10 @@ target_signal_from_name (char *name) /* This ugly cast brought to you by the native VAX compiler. */ for (sig = TARGET_SIGNAL_HUP; - signals[sig].name != NULL; + sig < TARGET_SIGNAL_LAST; sig = (enum target_signal) ((int) sig + 1)) - if (strcmp (name, signals[sig].name) == 0) + if (signals[sig].name != NULL + && strcmp (name, signals[sig].name) == 0) return sig; return TARGET_SIGNAL_UNKNOWN; } @@ -491,19 +506,6 @@ target_signal_from_host (int hostsig) } #endif -#if defined (SIGRTMIN) - if (hostsig >= SIGRTMIN && hostsig <= SIGRTMAX) - { - /* This block of TARGET_SIGNAL_REALTIME value is in order. */ - if (33 <= hostsig && hostsig <= 63) - return (enum target_signal) - (hostsig - 33 + (int) TARGET_SIGNAL_REALTIME_33); - else if (hostsig == 64) - return TARGET_SIGNAL_REALTIME_64; - else - error ("GDB bug: target.c (target_signal_from_host): unrecognized real-time signal"); - } -#endif return TARGET_SIGNAL_UNKNOWN; } @@ -516,6 +518,8 @@ static int do_target_signal_to_host (enum target_signal oursig, int *oursig_ok) { + int retsig; + *oursig_ok = 1; switch (oursig) { @@ -740,53 +744,33 @@ do_target_signal_to_host (enum target_signal oursig, default: #if defined (REALTIME_LO) + retsig = 0; + if (oursig >= TARGET_SIGNAL_REALTIME_33 && oursig <= TARGET_SIGNAL_REALTIME_63) { /* This block of signals is continuous, and TARGET_SIGNAL_REALTIME_33 is 33 by definition. */ - int retsig = - (int) oursig - (int) TARGET_SIGNAL_REALTIME_33 + 33; - if (retsig >= REALTIME_LO && retsig < REALTIME_HI) - return retsig; + retsig = (int) oursig - (int) TARGET_SIGNAL_REALTIME_33 + 33; } -#if (REALTIME_LO < 33) else if (oursig == TARGET_SIGNAL_REALTIME_32) { /* TARGET_SIGNAL_REALTIME_32 isn't contiguous with TARGET_SIGNAL_REALTIME_33. It is 32 by definition. */ - return 32; + retsig = 32; } -#endif -#if (REALTIME_HI > 64) - if (oursig >= TARGET_SIGNAL_REALTIME_64 + else if (oursig >= TARGET_SIGNAL_REALTIME_64 && oursig <= TARGET_SIGNAL_REALTIME_127) { /* This block of signals is continuous, and TARGET_SIGNAL_REALTIME_64 is 64 by definition. */ - int retsig = - (int) oursig - (int) TARGET_SIGNAL_REALTIME_64 + 64; - if (retsig >= REALTIME_LO && retsig < REALTIME_HI) - return retsig; + retsig = (int) oursig - (int) TARGET_SIGNAL_REALTIME_64 + 64; } - -#endif -#endif -#if defined (SIGRTMIN) - if (oursig >= TARGET_SIGNAL_REALTIME_33 - && oursig <= TARGET_SIGNAL_REALTIME_63) - { - /* This block of signals is continuous, and - TARGET_SIGNAL_REALTIME_33 is 33 by definition. */ - int retsig = - (int) oursig - (int) TARGET_SIGNAL_REALTIME_33 + 33; - if (retsig >= SIGRTMIN && retsig <= SIGRTMAX) - return retsig; - } - else if (oursig == TARGET_SIGNAL_REALTIME_64) - return 64; + if (retsig >= REALTIME_LO && retsig < REALTIME_HI) + return retsig; #endif + *oursig_ok = 0; return 0; } @@ -835,6 +819,8 @@ Use \"info signals\" for a list of symbolic signals."); } #ifndef GDBSERVER +extern initialize_file_ftype _initialize_signals; /* -Wmissing-prototype */ + void _initialize_signals (void) { |
