The branch stable/12 has been updated by mhorne: URL: https://cgit.FreeBSD.org/src/commit/?id=6a45b9926f2ecd90b1948ae469652a0a42071e86
commit 6a45b9926f2ecd90b1948ae469652a0a42071e86 Author: Mitchell Horne <[email protected]> AuthorDate: 2020-12-23 19:36:17 +0000 Commit: Mitchell Horne <[email protected]> CommitDate: 2021-01-04 21:01:09 +0000 gdb(4) fix x86 signal reporting The existing values correspond to x86 exception vector numbers, but the trap numbers used in the kernel do not match these 1-to-1. Prefer the definitions from x86/trap.h, as they are what actually get passed to kdb_trap(). This is of little consequence, as gdb_cpu_signal() only reports the trap reason (signal number) to the gdb client. This is limited to the subset of trap values for which kdb_trap() is reachable. Sponsored by: NetApp, Inc. Sponsored by: Klara, Inc. (cherry picked from commit 962c06c5a32deb9357851d5aca060defc79e6e90) --- sys/amd64/amd64/gdb_machdep.c | 27 ++++++++++++--------------- sys/i386/i386/gdb_machdep.c | 27 ++++++++++++--------------- 2 files changed, 24 insertions(+), 30 deletions(-) diff --git a/sys/amd64/amd64/gdb_machdep.c b/sys/amd64/amd64/gdb_machdep.c index 73022bee7674..8b391bb63dcf 100644 --- a/sys/amd64/amd64/gdb_machdep.c +++ b/sys/amd64/amd64/gdb_machdep.c @@ -136,21 +136,18 @@ gdb_cpu_signal(int type, int code) { switch (type & ~T_USER) { - case 0: return (SIGFPE); /* Divide by zero. */ - case 1: return (SIGTRAP); /* Debug exception. */ - case 3: return (SIGTRAP); /* Breakpoint. */ - case 4: return (SIGSEGV); /* into instr. (overflow). */ - case 5: return (SIGURG); /* bound instruction. */ - case 6: return (SIGILL); /* Invalid opcode. */ - case 7: return (SIGFPE); /* Coprocessor not present. */ - case 8: return (SIGEMT); /* Double fault. */ - case 9: return (SIGSEGV); /* Coprocessor segment overrun. */ - case 10: return (SIGTRAP); /* Invalid TSS (also single-step). */ - case 11: return (SIGSEGV); /* Segment not present. */ - case 12: return (SIGSEGV); /* Stack exception. */ - case 13: return (SIGSEGV); /* General protection. */ - case 14: return (SIGSEGV); /* Page fault. */ - case 16: return (SIGEMT); /* Coprocessor error. */ + case T_BPTFLT: return (SIGTRAP); + case T_ARITHTRAP: return (SIGFPE); + case T_PROTFLT: return (SIGSEGV); + case T_TRCTRAP: return (SIGTRAP); + case T_PAGEFLT: return (SIGSEGV); + case T_DIVIDE: return (SIGFPE); + case T_NMI: return (SIGTRAP); + case T_FPOPFLT: return (SIGILL); + case T_TSSFLT: return (SIGSEGV); + case T_SEGNPFLT: return (SIGSEGV); + case T_STKFLT: return (SIGSEGV); + case T_XMMFLT: return (SIGFPE); } return (SIGEMT); } diff --git a/sys/i386/i386/gdb_machdep.c b/sys/i386/i386/gdb_machdep.c index d501b847fda9..fd522309dbb2 100644 --- a/sys/i386/i386/gdb_machdep.c +++ b/sys/i386/i386/gdb_machdep.c @@ -99,21 +99,18 @@ gdb_cpu_signal(int type, int code) { switch (type & ~T_USER) { - case 0: return (SIGFPE); /* Divide by zero. */ - case 1: return (SIGTRAP); /* Debug exception. */ - case 3: return (SIGTRAP); /* Breakpoint. */ - case 4: return (SIGURG); /* into instr. (overflow). */ - case 5: return (SIGURG); /* bound instruction. */ - case 6: return (SIGILL); /* Invalid opcode. */ - case 7: return (SIGFPE); /* Coprocessor not present. */ - case 8: return (SIGEMT); /* Double fault. */ - case 9: return (SIGSEGV); /* Coprocessor segment overrun. */ - case 10: return (SIGTRAP); /* Invalid TSS (also single-step). */ - case 11: return (SIGSEGV); /* Segment not present. */ - case 12: return (SIGSEGV); /* Stack exception. */ - case 13: return (SIGSEGV); /* General protection. */ - case 14: return (SIGSEGV); /* Page fault. */ - case 16: return (SIGEMT); /* Coprocessor error. */ + case T_BPTFLT: return (SIGTRAP); + case T_ARITHTRAP: return (SIGFPE); + case T_PROTFLT: return (SIGSEGV); + case T_TRCTRAP: return (SIGTRAP); + case T_PAGEFLT: return (SIGSEGV); + case T_DIVIDE: return (SIGFPE); + case T_NMI: return (SIGTRAP); + case T_FPOPFLT: return (SIGILL); + case T_TSSFLT: return (SIGSEGV); + case T_SEGNPFLT: return (SIGSEGV); + case T_STKFLT: return (SIGSEGV); + case T_XMMFLT: return (SIGFPE); } return (SIGEMT); } _______________________________________________ [email protected] mailing list https://lists.freebsd.org/mailman/listinfo/dev-commits-src-all To unsubscribe, send any mail to "[email protected]"
