generic-library/bionic
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

Merge "Add a no dwarf version of assembler macros."

Browse Source
This commit is contained in:
Christopher Ferris
2015-09-30 23:18:32 +00:00
committed by Gerrit Code Review
parent 3230d96a10 8f8308c974
commit ad157a3c33
2 changed files with 21 additions and 8 deletions
Download Patch File Download Diff File Expand all files Collapse all files

12
libc/arch-arm/bionic/__restore.S
View File

@@ -34,7 +34,9 @@
// __restore_rt (but covered by the .fnstart/.fnend) so that although they're
// not inside the functions from objdump's point of view, an unwinder that
// blindly looks at the previous instruction (but is then smart enough to check
// the DWARF information to find out where it landed) gets the right answer.
// the unwind information to find out where it landed) gets the right answer.
// Make sure not to have both DWARF and ARM unwind information, so only
// use the ARM unwind information.
// We need to place .fnstart ourselves (but we may as well keep the free .fnend).
#undef __bionic_asm_custom_entry
@@ -44,18 +46,18 @@
.save {r0-r15}
.pad #32
nop
ENTRY_PRIVATE(__restore)
ENTRY_PRIVATE_NO_DWARF(__restore)
// This function must have exactly this instruction sequence.
mov r7, #__NR_sigreturn
swi #0
END(__restore)
END_NO_DWARF(__restore)
.fnstart
.save {r0-r15}
.pad #160
nop
ENTRY_PRIVATE(__restore_rt)
ENTRY_PRIVATE_NO_DWARF(__restore_rt)
// This function must have exactly this instruction sequence.
mov r7, #__NR_rt_sigreturn
swi #0
END(__restore_rt)
END_NO_DWARF(__restore_rt)