diff options
Diffstat (limited to 'gdb/i386-nto-tdep.c')
| -rw-r--r-- | gdb/i386-nto-tdep.c | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/gdb/i386-nto-tdep.c b/gdb/i386-nto-tdep.c index cbe12e3..0528931 100644 --- a/gdb/i386-nto-tdep.c +++ b/gdb/i386-nto-tdep.c @@ -287,8 +287,6 @@ i386nto_sigtramp_p (struct frame_info *this_frame) return name && strcmp ("__signalstub", name) == 0; } -#define I386_NTO_SIGCONTEXT_OFFSET 136 - /* Assuming THIS_FRAME is a QNX Neutrino sigtramp routine, return the address of the associated sigcontext structure. */ @@ -296,12 +294,14 @@ static CORE_ADDR i386nto_sigcontext_addr (struct frame_info *this_frame) { char buf[4]; - CORE_ADDR sp; + CORE_ADDR ptrctx; - get_frame_register (this_frame, I386_ESP_REGNUM, buf); - sp = extract_unsigned_integer (buf, 4); + /* We store __ucontext_t addr in EDI register. */ + get_frame_register (this_frame, I386_EDI_REGNUM, buf); + ptrctx = extract_unsigned_integer (buf, 4); + ptrctx += 24 /* Context pointer is at this offset. */; - return sp + I386_NTO_SIGCONTEXT_OFFSET; + return ptrctx; } static void @@ -340,8 +340,8 @@ i386nto_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch) tdep->sigtramp_p = i386nto_sigtramp_p; tdep->sigcontext_addr = i386nto_sigcontext_addr; - tdep->sc_pc_offset = 56; - tdep->sc_sp_offset = 68; + tdep->sc_reg_offset = i386nto_gregset_reg_offset; + tdep->sc_num_regs = ARRAY_SIZE (i386nto_gregset_reg_offset); /* Setjmp()'s return PC saved in EDX (5). */ tdep->jb_pc_offset = 20; /* 5x32 bit ints in. */ |