diff options
author | obrien <obrien@FreeBSD.org> | 2002-07-10 07:48:45 +0000 |
---|---|---|
committer | obrien <obrien@FreeBSD.org> | 2002-07-10 07:48:45 +0000 |
commit | ce3a73d11ca12064c522b8e10bfd778249556df9 (patch) | |
tree | ba900fbdc64694b7036d3b13064116ec7a8003ea /contrib/gdb | |
parent | d760a3490fc1b670b97637f7331c337e02402555 (diff) | |
download | FreeBSD-src-ce3a73d11ca12064c522b8e10bfd778249556df9.zip FreeBSD-src-ce3a73d11ca12064c522b8e10bfd778249556df9.tar.gz |
Make our i386 hacks in a less vendor file disturbing manner.
Diffstat (limited to 'contrib/gdb')
-rw-r--r-- | contrib/gdb/gdb/config/i386/tm-fbsd.h | 50 |
1 files changed, 21 insertions, 29 deletions
diff --git a/contrib/gdb/gdb/config/i386/tm-fbsd.h b/contrib/gdb/gdb/config/i386/tm-fbsd.h index dc82d0e..85b6480 100644 --- a/contrib/gdb/gdb/config/i386/tm-fbsd.h +++ b/contrib/gdb/gdb/config/i386/tm-fbsd.h @@ -26,10 +26,6 @@ #define HAVE_I387_REGS #include "i386/tm-i386.h" -#ifdef HAVE_SYS_PARAM_H -#include <sys/param.h> -#endif - /* FreeBSD/ELF uses stabs-in-ELF with the DWARF register numbering scheme by default, so we must redefine STAB_REG_TO_REGNUM. This messes up the floating-point registers for a.out, but there is not @@ -47,42 +43,38 @@ /* Support for longjmp. */ /* Details about jmp_buf. It's supposed to be an array of integers. */ + +#define JB_ELEMENT_SIZE 4 /* Size of elements in jmp_buf. */ +#define JB_PC 0 /* Array index of saved PC. */ + +/* Figure out where the longjmp will land. Store the address that + longjmp will jump to in *ADDR, and return non-zero if successful. */ + #define GET_LONGJMP_TARGET(addr) get_longjmp_target (addr) +extern int get_longjmp_target (CORE_ADDR *addr); -/* On FreeBSD, sigtramp has size 0x18 and is immediately below the - ps_strings struct which has size 0x10 and is at the top of the - user stack. */ +/* Support for signal handlers. */ + +#define IN_SIGTRAMP(pc, name) i386bsd_in_sigtramp (pc, name) +extern int i386bsd_in_sigtramp (CORE_ADDR pc, char *name); + +/* These defines allow the recognition of sigtramps as a function name + <sigtramp>. -#undef SIGTRAMP_START -#undef SIGTRAMP_END -#define SIGTRAMP_START(pc) 0xbfbfdfd8 -#define SIGTRAMP_END(pc) 0xbfbfdff0 + FIXME: kettenis/2001-07-13: These should be added to the target + vector and turned into functions when we go "multi-arch". */ +#define SIGTRAMP_START(pc) i386bsd_sigtramp_start +#define SIGTRAMP_END(pc) i386bsd_sigtramp_end extern CORE_ADDR i386bsd_sigtramp_start; extern CORE_ADDR i386bsd_sigtramp_end; -extern CORE_ADDR fbsd_kern_frame_saved_pc(struct frame_info *fr); /* Override FRAME_SAVED_PC to enable the recognition of signal handlers. */ #undef FRAME_SAVED_PC -#if __FreeBSD_version >= 500032 -#define FRAME_SAVED_PC(FRAME) \ - (kernel_debugging ? fbsd_kern_frame_saved_pc(FRAME) : \ - (((FRAME)->signal_handler_caller \ - ? sigtramp_saved_pc (FRAME) \ - : read_memory_integer ((FRAME)->frame + 4, 4)) \ - )) -#else -#define FRAME_SAVED_PC(FRAME) \ - (((FRAME)->signal_handler_caller \ - ? sigtramp_saved_pc (FRAME) \ - : read_memory_integer ((FRAME)->frame + 4, 4)) \ - ) -#endif - -/* Offset to saved PC in sigcontext, from <sys/signal.h>. */ -#define SIGCONTEXT_PC_OFFSET 20 +#define FRAME_SAVED_PC(frame) i386bsd_frame_saved_pc (frame) +extern CORE_ADDR i386bsd_frame_saved_pc (struct frame_info *frame); /* Shared library support. */ |