diff options
Diffstat (limited to 'gdb/i386-sol2-tdep.c')
| -rw-r--r-- | gdb/i386-sol2-tdep.c | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/gdb/i386-sol2-tdep.c b/gdb/i386-sol2-tdep.c index 78487af4658..0da32d5c0e2 100644 --- a/gdb/i386-sol2-tdep.c +++ b/gdb/i386-sol2-tdep.c @@ -24,6 +24,27 @@ #include "i386-tdep.h" +/* From <ia32/sys/reg.h>. */ +static int i386_sol2_gregset_reg_offset[] = +{ + 11 * 4, /* %eax */ + 10 * 4, /* %ecx */ + 9 * 4, /* %edx */ + 8 * 4, /* %ebx */ + 17 * 4, /* %esp */ + 6 * 4, /* %ebp */ + 5 * 4, /* %esi */ + 4 * 4, /* %edi */ + 14 * 4, /* %eip */ + 16 * 4, /* %eflags */ + 15 * 4, /* %cs */ + 18 * 4, /* %ss */ + 3 * 4, /* %ds */ + 2 * 4, /* %es */ + 1 * 4, /* %fs */ + 0 * 4 /* %gs */ +}; + static int i386_sol2_pc_in_sigtramp (CORE_ADDR pc, char *name) { @@ -32,6 +53,20 @@ i386_sol2_pc_in_sigtramp (CORE_ADDR pc, char *name) return (pc == 0xffffffff); } +/* Solaris doesn't have a `struct sigcontext', but it does have a + `mcontext_t' that contains the saved set of machine registers. */ + +static CORE_ADDR +i386_sol2_mcontext_addr (struct frame_info *next_frame) +{ + CORE_ADDR sp, ucontext_addr; + + sp = frame_unwind_register_unsigned (next_frame, I386_ESP_REGNUM); + ucontext_addr = get_frame_memory_unsigned (next_frame, sp + 8, 4); + + return ucontext_addr + 36; +} + /* Solaris 2. */ static void @@ -42,6 +77,18 @@ i386_sol2_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch) /* Solaris is SVR4-based. */ i386_svr4_init_abi (info, gdbarch); + /* Solaris reserves space for its FPU emulator in `fpregset_t'. + There is also some space reserved for the registers of a Weitek + math coprocessor. */ + tdep->gregset_reg_offset = i386_sol2_gregset_reg_offset; + tdep->gregset_num_regs = ARRAY_SIZE (i386_sol2_gregset_reg_offset); + tdep->sizeof_gregset = 19 * 4; + tdep->sizeof_fpregset = 380; + + tdep->sigcontext_addr = i386_sol2_mcontext_addr; + tdep->sc_reg_offset = tdep->gregset_reg_offset; + tdep->sc_num_regs = tdep->gregset_num_regs; + /* Signal trampolines are slightly different from SVR4. */ set_gdbarch_pc_in_sigtramp (gdbarch, i386_sol2_pc_in_sigtramp); } |