diff options
Diffstat (limited to 'gdb/config/i386/tm-i386v4.h')
| -rw-r--r-- | gdb/config/i386/tm-i386v4.h | 60 |
1 files changed, 10 insertions, 50 deletions
diff --git a/gdb/config/i386/tm-i386v4.h b/gdb/config/i386/tm-i386v4.h index 2003b96de2e..9363327fdb7 100644 --- a/gdb/config/i386/tm-i386v4.h +++ b/gdb/config/i386/tm-i386v4.h @@ -1,5 +1,5 @@ /* Macro definitions for GDB on an Intel i386 running SVR4. - Copyright 1991, 1994, 1995, 1998, 1999, 2000 + Copyright 1991, 1994, 1995, 1998, 1999, 2000, 2002 Free Software Foundation, Inc. Written by Fred Fish at Cygnus Support (fnf@cygnus.com) @@ -23,57 +23,17 @@ #ifndef TM_I386V4_H #define TM_I386V4_H 1 -/* Pick up most of what we need from the generic i386 target include file. */ -#define HAVE_I387_REGS +/* Pick up most of what we need from the generic i386 target include file. */ #include "i386/tm-i386.h" -/* Pick up more stuff from the generic SVR4 host include file. */ +/* It is unknown which, if any, SVR4 assemblers do not accept dollar signs + in identifiers. The default in G++ is to use dots instead, for all SVR4 + systems, so we make that our default also. FIXME: There should be some + way to get G++ to tell us what CPLUS_MARKER it is using, perhaps by + stashing it in the debugging information as part of the name of an + invented symbol ("gcc_cplus_marker$" for example). */ -#include "tm-sysv4.h" - -/* Use the alternate method of determining valid frame chains. */ - -#define FRAME_CHAIN_VALID(fp,fi) func_frame_chain_valid (fp, fi) - -/* Offsets (in target ints) into jmp_buf. Not defined in any system header - file, so we have to step through setjmp/longjmp with a debugger and figure - them out. Note that <setjmp> defines _JBLEN as 10, which is the default - if no specific machine is selected, even though we only use 6 slots. */ - -#define JB_ELEMENT_SIZE sizeof(int) /* jmp_buf[_JBLEN] is array of ints */ - -#define JB_EBX 0 -#define JB_ESI 1 -#define JB_EDI 2 -#define JB_EBP 3 -#define JB_ESP 4 -#define JB_EDX 5 - -#define JB_PC JB_EDX /* Setjmp()'s return PC saved in EDX */ - -/* Figure out where the longjmp will land. Slurp the args out of the stack. - We expect the first arg to be a pointer to the jmp_buf structure from which - we extract the pc (JB_PC) that we will land at. The pc is copied into ADDR. - This routine returns true on success */ - -extern int get_longjmp_target (CORE_ADDR *); - -#define GET_LONGJMP_TARGET(ADDR) get_longjmp_target(ADDR) - -/* The following redefines make backtracing through sigtramp work. - They manufacture a fake sigtramp frame and obtain the saved pc in sigtramp - from the ucontext structure which is pushed by the kernel on the - user stack. Unfortunately there are three variants of sigtramp handlers. */ - -#define I386V4_SIGTRAMP_SAVED_PC -#define IN_SIGTRAMP(pc, name) ((name) \ - && (STREQ ("_sigreturn", name) \ - || STREQ ("_sigacthandler", name) \ - || STREQ ("sigvechandler", name))) - -/* Saved Pc. Get it from ucontext if within sigtramp. */ - -#define sigtramp_saved_pc i386v4_sigtramp_saved_pc -extern CORE_ADDR i386v4_sigtramp_saved_pc (struct frame_info *); +#undef CPLUS_MARKER +#define CPLUS_MARKER '.' #endif /* ifndef TM_I386V4_H */ |