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authorMichael Snyder <msnyder@vmware.com>2005-01-17 19:49:14 +0000
committerMichael Snyder <msnyder@vmware.com>2005-01-17 19:49:14 +0000
commit295093a4152caf4acfa71a7a0d9ff010d177544f (patch)
tree8e1a5b217cdca2a5b74f59b6789e52d0a283d65b /gdb/mips-linux-tdep.c
parent4ac6917f4daab5860a8f8a2a5dfe14cadd601ebb (diff)
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2005-01-13 Michael Snyder <msnyder@redhat.com>
* mips-linux-tdep.c: Whitespace tweaks.
Diffstat (limited to 'gdb/mips-linux-tdep.c')
-rw-r--r--gdb/mips-linux-tdep.c175
1 files changed, 103 insertions, 72 deletions
diff --git a/gdb/mips-linux-tdep.c b/gdb/mips-linux-tdep.c
index afd8f5d..47aa398 100644
--- a/gdb/mips-linux-tdep.c
+++ b/gdb/mips-linux-tdep.c
@@ -64,9 +64,10 @@ typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG];
#define EF_SIZE 180
/* Figure out where the longjmp will land.
- We expect the first arg to be a pointer to the jmp_buf structure from
- which we extract the pc (MIPS_LINUX_JB_PC) that we will land at. The pc
- is copied into PC. This routine returns 1 on success. */
+ We expect the first arg to be a pointer to the jmp_buf structure
+ from which we extract the pc (MIPS_LINUX_JB_PC) that we will land
+ at. The pc is copied into PC. This routine returns 1 on
+ success. */
#define MIPS_LINUX_JB_ELEMENT_SIZE 4
#define MIPS_LINUX_JB_PC 0
@@ -131,7 +132,9 @@ supply_gregset (elf_gregset_t *gregsetp)
/* Fill inaccessible registers with zero. */
regcache_raw_supply (current_regcache, MIPS_UNUSED_REGNUM, zerobuf);
- for (regi = MIPS_FIRST_EMBED_REGNUM; regi < MIPS_LAST_EMBED_REGNUM; regi++)
+ for (regi = MIPS_FIRST_EMBED_REGNUM;
+ regi < MIPS_LAST_EMBED_REGNUM;
+ regi++)
regcache_raw_supply (current_regcache, regi, zerobuf);
}
@@ -206,7 +209,7 @@ supply_fpregset (elf_fpregset_t *fpregsetp)
mips_regnum (current_gdbarch)->fp_control_status,
(char *)(*fpregsetp + 32));
- /* FIXME: how can we supply FCRIR? The ABI doesn't tell us. */
+ /* FIXME: how can we supply FCRIR? The ABI doesn't tell us. */
regcache_raw_supply (current_regcache,
mips_regnum (current_gdbarch)->fp_implementation_revision,
zerobuf);
@@ -236,7 +239,8 @@ fill_fpregset (elf_fpregset_t *fpregsetp, int regno)
for (regi = 0; regi < 32; regi++)
fill_fpregset (fpregsetp, FP0_REGNUM + regi);
- fill_fpregset(fpregsetp, mips_regnum (current_gdbarch)->fp_control_status);
+ fill_fpregset (fpregsetp,
+ mips_regnum (current_gdbarch)->fp_control_status);
}
}
@@ -278,20 +282,22 @@ mips_linux_register_addr (int regno, CORE_ADDR blockend)
/* Fetch (and possibly build) an appropriate link_map_offsets
- structure for native GNU/Linux MIPS targets using the struct offsets
- defined in link.h (but without actual reference to that file).
+ structure for native GNU/Linux MIPS targets using the struct
+ offsets defined in link.h (but without actual reference to that
+ file).
- This makes it possible to access GNU/Linux MIPS shared libraries from a
- GDB that was built on a different host platform (for cross debugging). */
+ This makes it possible to access GNU/Linux MIPS shared libraries
+ from a GDB that was built on a different host platform (for cross
+ debugging). */
static struct link_map_offsets *
mips_linux_svr4_fetch_link_map_offsets (void)
-{
+{
static struct link_map_offsets lmo;
static struct link_map_offsets *lmp = NULL;
if (lmp == NULL)
- {
+ {
lmp = &lmo;
lmo.r_debug_size = 8; /* The actual size is 20 bytes, but
@@ -351,9 +357,10 @@ typedef mips64_elf_fpreg_t mips64_elf_fpregset_t[MIPS64_ELF_NFPREG];
#define MIPS64_EF_SIZE 304
/* Figure out where the longjmp will land.
- We expect the first arg to be a pointer to the jmp_buf structure from
- which we extract the pc (MIPS_LINUX_JB_PC) that we will land at. The pc
- is copied into PC. This routine returns 1 on success. */
+ We expect the first arg to be a pointer to the jmp_buf structure
+ from which we extract the pc (MIPS_LINUX_JB_PC) that we will land
+ at. The pc is copied into PC. This routine returns 1 on
+ success. */
/* Details about jmp_buf. */
@@ -392,23 +399,30 @@ mips64_supply_gregset (mips64_elf_gregset_t *gregsetp)
regcache_raw_supply (current_regcache, (regi - MIPS64_EF_REG0),
(char *)(regp + regi));
- regcache_raw_supply (current_regcache, mips_regnum (current_gdbarch)->lo,
- (char *)(regp + MIPS64_EF_LO));
- regcache_raw_supply (current_regcache, mips_regnum (current_gdbarch)->hi,
- (char *)(regp + MIPS64_EF_HI));
+ regcache_raw_supply (current_regcache,
+ mips_regnum (current_gdbarch)->lo,
+ (char *) (regp + MIPS64_EF_LO));
+ regcache_raw_supply (current_regcache,
+ mips_regnum (current_gdbarch)->hi,
+ (char *) (regp + MIPS64_EF_HI));
- regcache_raw_supply (current_regcache, mips_regnum (current_gdbarch)->pc,
- (char *)(regp + MIPS64_EF_CP0_EPC));
- regcache_raw_supply (current_regcache, mips_regnum (current_gdbarch)->badvaddr,
- (char *)(regp + MIPS64_EF_CP0_BADVADDR));
+ regcache_raw_supply (current_regcache,
+ mips_regnum (current_gdbarch)->pc,
+ (char *) (regp + MIPS64_EF_CP0_EPC));
+ regcache_raw_supply (current_regcache,
+ mips_regnum (current_gdbarch)->badvaddr,
+ (char *) (regp + MIPS64_EF_CP0_BADVADDR));
regcache_raw_supply (current_regcache, MIPS_PS_REGNUM,
- (char *)(regp + MIPS64_EF_CP0_STATUS));
- regcache_raw_supply (current_regcache, mips_regnum (current_gdbarch)->cause,
- (char *)(regp + MIPS64_EF_CP0_CAUSE));
+ (char *) (regp + MIPS64_EF_CP0_STATUS));
+ regcache_raw_supply (current_regcache,
+ mips_regnum (current_gdbarch)->cause,
+ (char *) (regp + MIPS64_EF_CP0_CAUSE));
/* Fill inaccessible registers with zero. */
regcache_raw_supply (current_regcache, MIPS_UNUSED_REGNUM, zerobuf);
- for (regi = MIPS_FIRST_EMBED_REGNUM; regi < MIPS_LAST_EMBED_REGNUM; regi++)
+ for (regi = MIPS_FIRST_EMBED_REGNUM;
+ regi < MIPS_LAST_EMBED_REGNUM;
+ regi++)
regcache_raw_supply (current_regcache, regi, zerobuf);
}
@@ -429,9 +443,11 @@ mips64_fill_gregset (mips64_elf_gregset_t *gregsetp, int regno)
mips64_fill_gregset (gregsetp, mips_regnum (current_gdbarch)->lo);
mips64_fill_gregset (gregsetp, mips_regnum (current_gdbarch)->hi);
mips64_fill_gregset (gregsetp, mips_regnum (current_gdbarch)->pc);
- mips64_fill_gregset (gregsetp, mips_regnum (current_gdbarch)->badvaddr);
+ mips64_fill_gregset (gregsetp,
+ mips_regnum (current_gdbarch)->badvaddr);
mips64_fill_gregset (gregsetp, MIPS_PS_REGNUM);
- mips64_fill_gregset (gregsetp, mips_regnum (current_gdbarch)->cause);
+ mips64_fill_gregset (gregsetp,
+ mips_regnum (current_gdbarch)->cause);
return;
}
@@ -483,7 +499,7 @@ mips64_supply_fpregset (mips64_elf_fpregset_t *fpregsetp)
mips_regnum (current_gdbarch)->fp_control_status,
(char *)(*fpregsetp + 32));
- /* FIXME: how can we supply FCRIR? The ABI doesn't tell us. */
+ /* FIXME: how can we supply FCRIR? The ABI doesn't tell us. */
regcache_raw_supply (current_regcache,
mips_regnum (current_gdbarch)->fp_implementation_revision,
zerobuf);
@@ -593,7 +609,8 @@ fetch_core_registers (char *core_reg_sect, unsigned core_reg_size,
}
else if (core_reg_size == sizeof (fpregset64))
{
- memcpy ((char *) &fpregset64, core_reg_sect, sizeof (fpregset64));
+ memcpy ((char *) &fpregset64, core_reg_sect,
+ sizeof (fpregset64));
mips64_supply_fpregset (&fpregset64);
}
else
@@ -616,20 +633,22 @@ static struct core_fns regset_core_fns =
};
/* Fetch (and possibly build) an appropriate link_map_offsets
- structure for native GNU/Linux MIPS targets using the struct offsets
- defined in link.h (but without actual reference to that file).
+ structure for native GNU/Linux MIPS targets using the struct
+ offsets defined in link.h (but without actual reference to that
+ file).
- This makes it possible to access GNU/Linux MIPS shared libraries from a
- GDB that was built on a different host platform (for cross debugging). */
+ This makes it possible to access GNU/Linux MIPS shared libraries
+ from a GDB that was built on a different host platform (for cross
+ debugging). */
static struct link_map_offsets *
mips64_linux_svr4_fetch_link_map_offsets (void)
-{
+{
static struct link_map_offsets lmo;
static struct link_map_offsets *lmp = NULL;
if (lmp == NULL)
- {
+ {
lmp = &lmo;
lmo.r_debug_size = 16; /* The actual size is 40 bytes, but
@@ -655,8 +674,8 @@ mips64_linux_svr4_fetch_link_map_offsets (void)
return lmp;
}
-/* Handle for obtaining pointer to the current register_addr() function
- for a given architecture. */
+/* Handle for obtaining pointer to the current register_addr()
+ function for a given architecture. */
static struct gdbarch_data *register_addr_data;
CORE_ADDR
@@ -672,9 +691,11 @@ register_addr (int regno, CORE_ADDR blockend)
static void
set_mips_linux_register_addr (struct gdbarch *gdbarch,
- CORE_ADDR (*register_addr_ptr) (int, CORE_ADDR))
+ CORE_ADDR (*register_addr_ptr) (int,
+ CORE_ADDR))
{
- deprecated_set_gdbarch_data (gdbarch, register_addr_data, register_addr_ptr);
+ deprecated_set_gdbarch_data (gdbarch, register_addr_data,
+ register_addr_ptr);
}
static void *
@@ -683,17 +704,17 @@ init_register_addr_data (struct gdbarch *gdbarch)
return 0;
}
-/* Check the code at PC for a dynamic linker lazy resolution stub. Because
- they aren't in the .plt section, we pattern-match on the code generated
- by GNU ld. They look like this:
+/* Check the code at PC for a dynamic linker lazy resolution stub.
+ Because they aren't in the .plt section, we pattern-match on the
+ code generated by GNU ld. They look like this:
lw t9,0x8010(gp)
addu t7,ra
jalr t9,ra
addiu t8,zero,INDEX
- (with the appropriate doubleword instructions for N64). Also return the
- dynamic symbol index used in the last instruction. */
+ (with the appropriate doubleword instructions for N64). Also
+ return the dynamic symbol index used in the last instruction. */
static int
mips_linux_in_dynsym_stub (CORE_ADDR pc, char *name)
@@ -739,7 +760,7 @@ mips_linux_in_dynsym_stub (CORE_ADDR pc, char *name)
if (insn != 0x03e07821)
return 0;
}
-
+
insn = extract_unsigned_integer (p + 8, 4);
/* jalr t9,ra */
if (insn != 0x0320f809)
@@ -762,19 +783,19 @@ mips_linux_in_dynsym_stub (CORE_ADDR pc, char *name)
return (insn & 0xffff);
}
-/* Return non-zero iff PC belongs to the dynamic linker resolution code
- or to a stub. */
+/* Return non-zero iff PC belongs to the dynamic linker resolution
+ code or to a stub. */
int
mips_linux_in_dynsym_resolve_code (CORE_ADDR pc)
{
- /* Check whether PC is in the dynamic linker. This also checks whether
- it is in the .plt section, which MIPS does not use. */
+ /* Check whether PC is in the dynamic linker. This also checks
+ whether it is in the .plt section, which MIPS does not use. */
if (in_solib_dynsym_resolve_code (pc))
return 1;
- /* Pattern match for the stub. It would be nice if there were a more
- efficient way to avoid this check. */
+ /* Pattern match for the stub. It would be nice if there were a
+ more efficient way to avoid this check. */
if (mips_linux_in_dynsym_stub (pc, NULL))
return 1;
@@ -798,10 +819,10 @@ mips_linux_skip_resolver (struct gdbarch *gdbarch, CORE_ADDR pc)
resolver = lookup_minimal_symbol ("__dl_runtime_resolve", NULL, NULL);
if (resolver && SYMBOL_VALUE_ADDRESS (resolver) == pc)
- return frame_pc_unwind (get_current_frame ());
+ return frame_pc_unwind (get_current_frame ());
return 0;
-}
+}
/* Signal trampoline support. There are four supported layouts for a
signal frame: o32 sigframe, o32 rt_sigframe, n32 rt_sigframe, and
@@ -868,7 +889,9 @@ static const struct tramp_frame mips_linux_n32_rt_sigframe = {
static const struct tramp_frame mips_linux_n64_rt_sigframe = {
SIGTRAMP_FRAME,
4,
- { MIPS_INST_LI_V0_N64_RT_SIGRETURN, MIPS_INST_SYSCALL, TRAMP_SENTINEL_INSN },
+ { MIPS_INST_LI_V0_N64_RT_SIGRETURN,
+ MIPS_INST_SYSCALL,
+ TRAMP_SENTINEL_INSN },
mips_linux_n32n64_sigframe_init
};
@@ -958,11 +981,11 @@ mips_linux_o32_sigframe_init (const struct tramp_frame *self,
sigcontext_base += SIGFRAME_SIGCONTEXT_OFFSET;
else
sigcontext_base += RTSIGFRAME_SIGCONTEXT_OFFSET;
-
- /* I'm not proud of this hack. Eventually we will have the infrastructure
- to indicate the size of saved registers on a per-frame basis, but
- right now we don't; the kernel saves eight bytes but we only want
- four. */
+
+ /* I'm not proud of this hack. Eventually we will have the
+ infrastructure to indicate the size of saved registers on a
+ per-frame basis, but right now we don't; the kernel saves eight
+ bytes but we only want four. */
if (TARGET_BYTE_ORDER == BFD_ENDIAN_BIG)
sigcontext_base += 4;
@@ -972,7 +995,8 @@ mips_linux_o32_sigframe_init (const struct tramp_frame *self,
#endif
for (ireg = 1; ireg < 32; ireg++)
- trad_frame_set_reg_addr (this_cache, ireg + MIPS_ZERO_REGNUM + NUM_REGS,
+ trad_frame_set_reg_addr (this_cache,
+ ireg + MIPS_ZERO_REGNUM + NUM_REGS,
sigcontext_base + SIGCONTEXT_REGS
+ ireg * SIGCONTEXT_REG_SIZE);
@@ -984,7 +1008,8 @@ mips_linux_o32_sigframe_init (const struct tramp_frame *self,
trad_frame_set_reg_addr (this_cache, regs->pc + NUM_REGS,
sigcontext_base + SIGCONTEXT_PC);
- trad_frame_set_reg_addr (this_cache, regs->fp_control_status + NUM_REGS,
+ trad_frame_set_reg_addr (this_cache,
+ regs->fp_control_status + NUM_REGS,
sigcontext_base + SIGCONTEXT_FPCSR);
trad_frame_set_reg_addr (this_cache, regs->hi + NUM_REGS,
sigcontext_base + SIGCONTEXT_HI);
@@ -997,7 +1022,8 @@ mips_linux_o32_sigframe_init (const struct tramp_frame *self,
/* Choice of the bottom of the sigframe is somewhat arbitrary. */
trad_frame_set_id (this_cache,
- frame_id_build (func - SIGFRAME_CODE_OFFSET, func));
+ frame_id_build (func - SIGFRAME_CODE_OFFSET,
+ func));
}
/* *INDENT-OFF* */
@@ -1017,7 +1043,7 @@ mips_linux_o32_sigframe_init (const struct tramp_frame *self,
struct sigcontext uc_mcontext;
sigset_t uc_sigmask; [ mask last for extensibility ]
};
-
+
struct rt_sigframe_n32 {
u32 rs_ass[4]; [ argument save space for o32 ]
u32 rs_code[2]; [ signal trampoline ]
@@ -1072,7 +1098,7 @@ mips_linux_o32_sigframe_init (const struct tramp_frame *self,
#define N64_SIGCONTEXT_BADVADDR (67 * 8 + 5 * 4)
#define N64_SIGCONTEXT_REG_SIZE 8
-
+
static void
mips_linux_n32n64_sigframe_init (const struct tramp_frame *self,
struct frame_info *next_frame,
@@ -1087,14 +1113,15 @@ mips_linux_n32n64_sigframe_init (const struct tramp_frame *self,
sigcontext_base += N32_SIGFRAME_SIGCONTEXT_OFFSET;
else
sigcontext_base += N64_SIGFRAME_SIGCONTEXT_OFFSET;
-
+
#if 0
trad_frame_set_reg_addr (this_cache, ORIG_ZERO_REGNUM + NUM_REGS,
sigcontext_base + N64_SIGCONTEXT_REGS);
#endif
for (ireg = 1; ireg < 32; ireg++)
- trad_frame_set_reg_addr (this_cache, ireg + MIPS_ZERO_REGNUM + NUM_REGS,
+ trad_frame_set_reg_addr (this_cache,
+ ireg + MIPS_ZERO_REGNUM + NUM_REGS,
sigcontext_base + N64_SIGCONTEXT_REGS
+ ireg * N64_SIGCONTEXT_REG_SIZE);
@@ -1106,7 +1133,8 @@ mips_linux_n32n64_sigframe_init (const struct tramp_frame *self,
trad_frame_set_reg_addr (this_cache, regs->pc + NUM_REGS,
sigcontext_base + N64_SIGCONTEXT_PC);
- trad_frame_set_reg_addr (this_cache, regs->fp_control_status + NUM_REGS,
+ trad_frame_set_reg_addr (this_cache,
+ regs->fp_control_status + NUM_REGS,
sigcontext_base + N64_SIGCONTEXT_FPCSR);
trad_frame_set_reg_addr (this_cache, regs->hi + NUM_REGS,
sigcontext_base + N64_SIGCONTEXT_HI);
@@ -1119,13 +1147,15 @@ mips_linux_n32n64_sigframe_init (const struct tramp_frame *self,
/* Choice of the bottom of the sigframe is somewhat arbitrary. */
trad_frame_set_id (this_cache,
- frame_id_build (func - SIGFRAME_CODE_OFFSET, func));
+ frame_id_build (func - SIGFRAME_CODE_OFFSET,
+ func));
}
/* Initialize one of the GNU/Linux OS ABIs. */
static void
-mips_linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
+mips_linux_init_abi (struct gdbarch_info info,
+ struct gdbarch *gdbarch)
{
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
enum mips_abi abi = mips_abi (gdbarch);
@@ -1179,7 +1209,8 @@ _initialize_mips_linux_tdep (void)
arch_info != NULL;
arch_info = arch_info->next)
{
- gdbarch_register_osabi (bfd_arch_mips, arch_info->mach, GDB_OSABI_LINUX,
+ gdbarch_register_osabi (bfd_arch_mips, arch_info->mach,
+ GDB_OSABI_LINUX,
mips_linux_init_abi);
}