diff options
Diffstat (limited to 'gdb/i386-linux-tdep.c')
| -rw-r--r-- | gdb/i386-linux-tdep.c | 67 |
1 files changed, 60 insertions, 7 deletions
diff --git a/gdb/i386-linux-tdep.c b/gdb/i386-linux-tdep.c index 9592dec..12a2ab9 100644 --- a/gdb/i386-linux-tdep.c +++ b/gdb/i386-linux-tdep.c @@ -33,9 +33,12 @@ #include "solib-svr4.h" /* For struct link_map_offsets. */ +#include "i386-tdep.h" +#include "i386-linux-tdep.h" + /* Return the name of register REG. */ -char * +static char * i386_linux_register_name (int reg) { /* Deal with the extra "orig_eax" pseudo register. */ @@ -45,7 +48,7 @@ i386_linux_register_name (int reg) return i386_register_name (reg); } -int +static int i386_linux_register_byte (int reg) { /* Deal with the extra "orig_eax" pseudo register. */ @@ -56,7 +59,7 @@ i386_linux_register_byte (int reg) return i386_register_byte (reg); } -int +static int i386_linux_register_raw_size (int reg) { /* Deal with the extra "orig_eax" pseudo register. */ @@ -224,8 +227,8 @@ i386_linux_rt_sigtramp_start (CORE_ADDR pc) /* Return whether PC is in a GNU/Linux sigtramp routine. */ -int -i386_linux_in_sigtramp (CORE_ADDR pc, char *name) +static int +i386_linux_pc_in_sigtramp (CORE_ADDR pc, char *name) { if (name) return STREQ ("__restore", name) || STREQ ("__restore_rt", name); @@ -379,7 +382,7 @@ i386_linux_saved_pc_after_call (struct frame_info *frame) /* Set the program counter for process PTID to PC. */ -void +static void i386_linux_write_pc (CORE_ADDR pc, ptid_t ptid) { write_register_pid (PC_REGNUM, pc, ptid); @@ -496,7 +499,7 @@ i386_linux_skip_solib_resolver (CORE_ADDR pc) from a GDB that was not built on an GNU/Linux x86 host (for cross debugging). */ -struct link_map_offsets * +static struct link_map_offsets * i386_linux_svr4_fetch_link_map_offsets (void) { static struct link_map_offsets lmo; @@ -528,3 +531,53 @@ i386_linux_svr4_fetch_link_map_offsets (void) return lmp; } + + +static void +i386_linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch) +{ + struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); + + /* GNU/Linux uses ELF. */ + i386_elf_init_abi (info, gdbarch); + + /* We support the SSE registers on GNU/Linux. */ + tdep->num_xmm_regs = I386_NUM_XREGS - 1; + /* set_gdbarch_num_regs (gdbarch, I386_SSE_NUM_REGS); */ + + /* Since we have the extra "orig_eax" register on GNU/Linux, we have + to adjust a few things. */ + + set_gdbarch_write_pc (gdbarch, i386_linux_write_pc); + set_gdbarch_num_regs (gdbarch, I386_SSE_NUM_REGS + 1); + set_gdbarch_register_name (gdbarch, i386_linux_register_name); + set_gdbarch_register_bytes (gdbarch, I386_SSE_SIZEOF_REGS + 4); + set_gdbarch_register_byte (gdbarch, i386_linux_register_byte); + set_gdbarch_register_raw_size (gdbarch, i386_linux_register_raw_size); + + tdep->jb_pc_offset = 20; /* From <bits/setjmp.h>. */ + + /* When the i386 Linux kernel calls a signal handler, the return + address points to a bit of code on the stack. These definitions + are used to identify this bit of code as a signal trampoline in + order to support backtracing through calls to signal handlers. */ + + set_gdbarch_pc_in_sigtramp (gdbarch, i386_linux_pc_in_sigtramp); + set_gdbarch_frame_chain (gdbarch, i386_linux_frame_chain); + set_gdbarch_frame_saved_pc (gdbarch, i386_linux_frame_saved_pc); + set_gdbarch_saved_pc_after_call (gdbarch, i386_linux_saved_pc_after_call); + tdep->sigtramp_saved_pc = i386_linux_sigtramp_saved_pc; + + set_solib_svr4_fetch_link_map_offsets (gdbarch, + i386_linux_svr4_fetch_link_map_offsets); +} + +/* Provide a prototype to silence -Wmissing-prototypes. */ +extern void _initialize_i386_linux_tdep (void); + +void +_initialize_i386_linux_tdep (void) +{ + gdbarch_register_osabi (bfd_arch_i386, GDB_OSABI_LINUX, + i386_linux_init_abi); +} |