diff options
Diffstat (limited to 'gdb/arm-linux-tdep.c')
| -rw-r--r-- | gdb/arm-linux-tdep.c | 22 |
1 files changed, 11 insertions, 11 deletions
diff --git a/gdb/arm-linux-tdep.c b/gdb/arm-linux-tdep.c index 466df1e..75b1a8d 100644 --- a/gdb/arm-linux-tdep.c +++ b/gdb/arm-linux-tdep.c @@ -105,7 +105,7 @@ static const char arm_linux_thumb2_le_breakpoint[] = { 0xf0, 0xf7, 0x00, 0xa0 }; GOT = global offset table As much as possible, ELF dynamic linking defers the resolution of - jump/call addresses until the last minute. The technique used is + jump/call addresses until the last minute. The technique used is inspired by the i386 ELF design, and is based on the following constraints. @@ -147,9 +147,9 @@ static const char arm_linux_thumb2_le_breakpoint[] = { 0xf0, 0xf7, 0x00, 0xa0 }; 2) In the PLT: - The PLT is a synthetic area, created by the linker. It exists in - both executables and libraries. It is an array of stubs, one per - imported function call. It looks like this: + The PLT is a synthetic area, created by the linker. It exists in + both executables and libraries. It is an array of stubs, one per + imported function call. It looks like this: PLT[0]: str lr, [sp, #-4]! @push the return address (lr) @@ -171,7 +171,7 @@ static const char arm_linux_thumb2_le_breakpoint[] = { 0xf0, 0xf7, 0x00, 0xa0 }; lr = &GOT[0] + 8 = &GOT[2] - NOTE: PLT[0] borrows an offset .word from PLT[1]. This is a little + NOTE: PLT[0] borrows an offset .word from PLT[1]. This is a little "tight", but allows us to keep all the PLT entries the same size. PLT[n+1]: @@ -188,12 +188,12 @@ static const char arm_linux_thumb2_le_breakpoint[] = { 0xf0, 0xf7, 0x00, 0xa0 }; 3) In the GOT: The GOT contains helper pointers for both code (PLT) fixups and - data fixups. The first 3 entries of the GOT are special. The next + data fixups. The first 3 entries of the GOT are special. The next M entries (where M is the number of entries in the PLT) belong to - the PLT fixups. The next D (all remaining) entries belong to - various data fixups. The actual size of the GOT is 3 + M + D. + the PLT fixups. The next D (all remaining) entries belong to + various data fixups. The actual size of the GOT is 3 + M + D. - The GOT is also a synthetic area, created by the linker. It exists + The GOT is also a synthetic area, created by the linker. It exists in both executables and libraries. When the GOT is first initialized , all the GOT entries relating to PLT fixups are pointing to code back at PLT[0]. @@ -784,11 +784,11 @@ arm_linux_copy_svc (struct gdbarch *gdbarch, uint32_t insn, CORE_ADDR to, if (debug_displaced) fprintf_unfiltered (gdb_stdlog, "displaced: found " - "sigreturn/rt_sigreturn SVC call. PC in frame = %lx\n", + "sigreturn/rt_sigreturn SVC call. PC in frame = %lx\n", (unsigned long) get_frame_pc (frame)); if (debug_displaced) - fprintf_unfiltered (gdb_stdlog, "displaced: unwind pc = %lx. " + fprintf_unfiltered (gdb_stdlog, "displaced: unwind pc = %lx. " "Setting momentary breakpoint.\n", (unsigned long) return_to); gdb_assert (inferior_thread ()->control.step_resume_breakpoint |