/* Target-dependent code for Solaris SPARC.
- Copyright (C) 2003-2015 Free Software Foundation, Inc.
+ Copyright (C) 2003-2023 Free Software Foundation, Inc.
This file is part of GDB.
};
\f
-/* The Solaris signal trampolines reside in libc. For normal signals,
- the function `sigacthandler' is used. This signal trampoline will
- call the signal handler using the System V calling convention,
- where the third argument is a pointer to an instance of
- `ucontext_t', which has a member `uc_mcontext' that contains the
- saved registers. Incidentally, the kernel passes the `ucontext_t'
- pointer as the third argument of the signal trampoline too, and
- `sigacthandler' simply passes it on. However, if you link your
- program with "-L/usr/ucblib -R/usr/ucblib -lucb", the function
- `ucbsigvechandler' will be used, which invokes the using the BSD
- convention, where the third argument is a pointer to an instance of
- `struct sigcontext'. It is the `ucbsigvechandler' function that
- converts the `ucontext_t' to a `sigcontext', and back. Unless the
- signal handler modifies the `struct sigcontext' we can safely
- ignore this. */
-
-int
-sparc_sol2_pc_in_sigtramp (CORE_ADDR pc, const char *name)
-{
- return (name && (strcmp (name, "sigacthandler") == 0
- || strcmp (name, "ucbsigvechandler") == 0
- || strcmp (name, "__sighndlr") == 0));
-}
-
static struct sparc_frame_cache *
-sparc32_sol2_sigtramp_frame_cache (struct frame_info *this_frame,
+sparc32_sol2_sigtramp_frame_cache (frame_info_ptr this_frame,
void **this_cache)
{
struct sparc_frame_cache *cache;
(cache->copied_regs_mask & 0x04) ? SPARC_I2_REGNUM : SPARC_O2_REGNUM;
mcontext_addr = get_frame_register_unsigned (this_frame, regnum) + 40;
- cache->saved_regs[SPARC32_PSR_REGNUM].addr = mcontext_addr + 0 * 4;
- cache->saved_regs[SPARC32_PC_REGNUM].addr = mcontext_addr + 1 * 4;
- cache->saved_regs[SPARC32_NPC_REGNUM].addr = mcontext_addr + 2 * 4;
- cache->saved_regs[SPARC32_Y_REGNUM].addr = mcontext_addr + 3 * 4;
+ cache->saved_regs[SPARC32_PSR_REGNUM].set_addr (mcontext_addr + 0 * 4);
+ cache->saved_regs[SPARC32_PC_REGNUM].set_addr (mcontext_addr + 1 * 4);
+ cache->saved_regs[SPARC32_NPC_REGNUM].set_addr (mcontext_addr + 2 * 4);
+ cache->saved_regs[SPARC32_Y_REGNUM].set_addr (mcontext_addr + 3 * 4);
/* Since %g0 is always zero, keep the identity encoding. */
for (regnum = SPARC_G1_REGNUM, addr = mcontext_addr + 4 * 4;
regnum <= SPARC_O7_REGNUM; regnum++, addr += 4)
- cache->saved_regs[regnum].addr = addr;
+ cache->saved_regs[regnum].set_addr (addr);
if (get_frame_memory_unsigned (this_frame, mcontext_addr + 19 * 4, 4))
{
/* The register windows haven't been flushed. */
for (regnum = SPARC_L0_REGNUM; regnum <= SPARC_I7_REGNUM; regnum++)
- trad_frame_set_unknown (cache->saved_regs, regnum);
+ cache->saved_regs[regnum].set_unknown ();
}
else
{
- addr = cache->saved_regs[SPARC_SP_REGNUM].addr;
+ addr = cache->saved_regs[SPARC_SP_REGNUM].addr ();
addr = get_frame_memory_unsigned (this_frame, addr, 4);
for (regnum = SPARC_L0_REGNUM;
regnum <= SPARC_I7_REGNUM; regnum++, addr += 4)
- cache->saved_regs[regnum].addr = addr;
+ cache->saved_regs[regnum].set_addr (addr);
}
return cache;
}
static void
-sparc32_sol2_sigtramp_frame_this_id (struct frame_info *this_frame,
+sparc32_sol2_sigtramp_frame_this_id (frame_info_ptr this_frame,
void **this_cache,
struct frame_id *this_id)
{
}
static struct value *
-sparc32_sol2_sigtramp_frame_prev_register (struct frame_info *this_frame,
+sparc32_sol2_sigtramp_frame_prev_register (frame_info_ptr this_frame,
void **this_cache,
int regnum)
{
static int
sparc32_sol2_sigtramp_frame_sniffer (const struct frame_unwind *self,
- struct frame_info *this_frame,
+ frame_info_ptr this_frame,
void **this_cache)
{
- CORE_ADDR pc = get_frame_pc (this_frame);
- const char *name;
-
- find_pc_partial_function (pc, &name, NULL, NULL);
- if (sparc_sol2_pc_in_sigtramp (pc, name))
- return 1;
-
- return 0;
+ return sol2_sigtramp_p (this_frame);
}
static const struct frame_unwind sparc32_sol2_sigtramp_frame_unwind =
{
+ "sparc32 solaris sigtramp",
SIGTRAMP_FRAME,
default_frame_unwind_stop_reason,
sparc32_sol2_sigtramp_frame_this_id,
sparc32_sol2_sigtramp_frame_sniffer
};
-/* Unglobalize NAME. */
-
-const char *
-sparc_sol2_static_transform_name (const char *name)
-{
- /* The Sun compilers (Sun ONE Studio, Forte Developer, Sun WorkShop,
- SunPRO) convert file static variables into global values, a
- process known as globalization. In order to do this, the
- compiler will create a unique prefix and prepend it to each file
- static variable. For static variables within a function, this
- globalization prefix is followed by the function name (nested
- static variables within a function are supposed to generate a
- warning message, and are left alone). The procedure is
- documented in the Stabs Interface Manual, which is distrubuted
- with the compilers, although version 4.0 of the manual seems to
- be incorrect in some places, at least for SPARC. The
- globalization prefix is encoded into an N_OPT stab, with the form
- "G=<prefix>". The globalization prefix always seems to start
- with a dollar sign '$'; a dot '.' is used as a seperator. So we
- simply strip everything up until the last dot. */
-
- if (name[0] == '$')
- {
- const char *p = strrchr (name, '.');
- if (p)
- return p + 1;
- }
-
- return name;
-}
\f
-void
+static void
sparc32_sol2_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
{
- struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
+ sparc_gdbarch_tdep *tdep = gdbarch_tdep<sparc_gdbarch_tdep> (gdbarch);
tdep->gregset = &sparc32_sol2_gregset;
tdep->sizeof_gregset = 152;
tdep->fpregset = &sparc32_sol2_fpregset;
tdep->sizeof_fpregset = 400;
- /* The Sun compilers (Sun ONE Studio, Forte Developer, Sun WorkShop, SunPRO)
- compiler puts out 0 instead of the address in N_SO stabs. Starting with
- SunPRO 3.0, the compiler does this for N_FUN stabs too. */
- set_gdbarch_sofun_address_maybe_missing (gdbarch, 1);
-
- /* The Sun compilers also do "globalization"; see the comment in
- sparc_sol2_static_transform_name for more information. */
- set_gdbarch_static_transform_name
- (gdbarch, sparc_sol2_static_transform_name);
+ sol2_init_abi (info, gdbarch);
/* Solaris has SVR4-style shared libraries... */
set_gdbarch_skip_trampoline_code (gdbarch, find_solib_trampoline_target);
- set_gdbarch_skip_solib_resolver (gdbarch, sol2_skip_solib_resolver);
set_solib_svr4_fetch_link_map_offsets
(gdbarch, svr4_ilp32_fetch_link_map_offsets);
set_gdbarch_software_single_step (gdbarch, NULL);
frame_unwind_append_unwinder (gdbarch, &sparc32_sol2_sigtramp_frame_unwind);
-
- /* How to print LWP PTIDs from core files. */
- set_gdbarch_core_pid_to_str (gdbarch, sol2_core_pid_to_str);
}
-\f
-
-/* Provide a prototype to silence -Wmissing-prototypes. */
-void _initialize_sparc_sol2_tdep (void);
+void _initialize_sparc_sol2_tdep ();
void
-_initialize_sparc_sol2_tdep (void)
+_initialize_sparc_sol2_tdep ()
{
gdbarch_register_osabi (bfd_arch_sparc, 0,
GDB_OSABI_SOLARIS, sparc32_sol2_init_abi);
projects / binutils-gdb.git / blobdiff