diff options
Diffstat (limited to 'sysdeps/i386')
| -rw-r--r-- | sysdeps/i386/dl-machine.h | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/sysdeps/i386/dl-machine.h b/sysdeps/i386/dl-machine.h index 07c880a160..00b99957f3 100644 --- a/sysdeps/i386/dl-machine.h +++ b/sysdeps/i386/dl-machine.h @@ -168,35 +168,51 @@ static ElfW(Addr) profile_fixup (struct link_map *l, ElfW(Word) reloc_offset, .text\n\ .globl _dl_runtime_resolve\n\ .type _dl_runtime_resolve, @function\n\ + " CFI_STARTPROC "\n\ .align 16\n\ _dl_runtime_resolve:\n\ + " CFI_ADJUST_CFA_OFFSET (8) "\n\ pushl %eax # Preserve registers otherwise clobbered.\n\ + " CFI_ADJUST_CFA_OFFSET (4) "\n\ pushl %ecx\n\ + " CFI_ADJUST_CFA_OFFSET (4) "\n\ pushl %edx\n\ + " CFI_ADJUST_CFA_OFFSET (4) "\n\ movl 16(%esp), %edx # Copy args pushed by PLT in register. Note\n\ movl 12(%esp), %eax # that `fixup' takes its parameters in regs.\n\ call fixup # Call resolver.\n\ popl %edx # Get register content back.\n\ + " CFI_ADJUST_CFA_OFFSET (-4) "\n\ popl %ecx\n\ + " CFI_ADJUST_CFA_OFFSET (-4) "\n\ xchgl %eax, (%esp) # Get %eax contents end store function address.\n\ ret $8 # Jump to function address.\n\ + " CFI_ENDPROC "\n\ .size _dl_runtime_resolve, .-_dl_runtime_resolve\n\ \n\ .globl _dl_runtime_profile\n\ .type _dl_runtime_profile, @function\n\ + " CFI_STARTPROC "\n\ .align 16\n\ _dl_runtime_profile:\n\ + " CFI_ADJUST_CFA_OFFSET (8) "\n\ pushl %eax # Preserve registers otherwise clobbered.\n\ + " CFI_ADJUST_CFA_OFFSET (4) "\n\ pushl %ecx\n\ + " CFI_ADJUST_CFA_OFFSET (4) "\n\ pushl %edx\n\ + " CFI_ADJUST_CFA_OFFSET (4) "\n\ movl 20(%esp), %ecx # Load return address\n\ movl 16(%esp), %edx # Copy args pushed by PLT in register. Note\n\ movl 12(%esp), %eax # that `fixup' takes its parameters in regs.\n\ call profile_fixup # Call resolver.\n\ popl %edx # Get register content back.\n\ + " CFI_ADJUST_CFA_OFFSET (-4) "\n\ popl %ecx\n\ + " CFI_ADJUST_CFA_OFFSET (-4) "\n\ xchgl %eax, (%esp) # Get %eax contents end store function address.\n\ ret $8 # Jump to function address.\n\ + " CFI_ENDPROC "\n\ .size _dl_runtime_profile, .-_dl_runtime_profile\n\ .previous\n\ "); @@ -207,23 +223,35 @@ _dl_runtime_profile:\n\ .globl _dl_runtime_profile\n\ .type _dl_runtime_resolve, @function\n\ .type _dl_runtime_profile, @function\n\ + " CFI_STARTPROC "\n\ .align 16\n\ _dl_runtime_resolve:\n\ _dl_runtime_profile:\n\ + " CFI_ADJUST_CFA_OFFSET (8) "\n\ pushl %eax # Preserve registers otherwise clobbered.\n\ + " CFI_ADJUST_CFA_OFFSET (4) "\n\ pushl %ecx\n\ + " CFI_ADJUST_CFA_OFFSET (4) "\n\ pushl %edx\n\ + " CFI_ADJUST_CFA_OFFSET (4) "\n\ movl 16(%esp), %edx # Push the arguments for `fixup'\n\ movl 12(%esp), %eax\n\ pushl %edx\n\ + " CFI_ADJUST_CFA_OFFSET (4) "\n\ pushl %eax\n\ + " CFI_ADJUST_CFA_OFFSET (4) "\n\ call fixup # Call resolver.\n\ popl %edx # Pop the parameters\n\ + " CFI_ADJUST_CFA_OFFSET (-4) "\n\ popl %ecx\n\ + " CFI_ADJUST_CFA_OFFSET (-4) "\n\ popl %edx # Get register content back.\n\ + " CFI_ADJUST_CFA_OFFSET (-4) "\n\ popl %ecx\n\ + " CFI_ADJUST_CFA_OFFSET (-4) "\n\ xchgl %eax, (%esp) # Get %eax contents end store function address.\n\ ret $8 # Jump to function address.\n\ + " CFI_ENDPROC "\n\ .size _dl_runtime_resolve, .-_dl_runtime_resolve\n\ .size _dl_runtime_profile, .-_dl_runtime_profile\n\ .previous\n\ |