diff options
| author | rsandifo <rsandifo@138bc75d-0d04-0410-961f-82ee72b054a4> | 2012-02-19 16:44:54 +0000 |
|---|---|---|
| committer | rsandifo <rsandifo@138bc75d-0d04-0410-961f-82ee72b054a4> | 2012-02-19 16:44:54 +0000 |
| commit | 7db87803cbf2a7072f673d8f1d0faa8006dd158b (patch) | |
| tree | ad8b1e20eb94789217582fe66f9f9acb4948492a /libgcc | |
| parent | fee2ac00fbb2de84e4427588dadc769436910840 (diff) | |
| download | gcc-7db87803cbf2a7072f673d8f1d0faa8006dd158b.tar.gz | |
gcc/
* config/mips/mips.c (mips16_build_call_stub): Add CFI information
to stubs with non-sibling calls.
libgcc/
* config/mips/mips16.S (CALL_STUB_RET): Add CFI information.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@184379 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'libgcc')
| -rw-r--r-- | libgcc/ChangeLog | 4 | ||||
| -rw-r--r-- | libgcc/config/mips/mips16.S | 26 |
2 files changed, 21 insertions, 9 deletions
diff --git a/libgcc/ChangeLog b/libgcc/ChangeLog index 01a3ac230a6..15d9b08824e 100644 --- a/libgcc/ChangeLog +++ b/libgcc/ChangeLog @@ -1,3 +1,7 @@ +2012-02-19 Richard Sandiford <rdsandiford@googlemail.com> + + * config/mips/mips16.S (CALL_STUB_RET): Add CFI information. + 2012-02-15 Iain Sandoe <iains@gcc.gnu.org> PR libitm/52220 diff --git a/libgcc/config/mips/mips16.S b/libgcc/config/mips/mips16.S index c82a55da6aa..1899ab2ede9 100644 --- a/libgcc/config/mips/mips16.S +++ b/libgcc/config/mips/mips16.S @@ -566,15 +566,23 @@ CALL_STUB_NO_RET (__mips16_call_stub_10, 10) being called is 16 bits, in which case the copy is unnecessary; however, it's faster to always do the copy. */ -#define CALL_STUB_RET(NAME, CODE, MODE) \ -STARTFN (NAME); \ - move $18,$31; \ - STUB_ARGS_##CODE; \ - .set noreorder; \ - jalr $2; \ - move $25,$2; \ - .set reorder; \ - MOVE_##MODE##_RET (f, $18); \ +#define CALL_STUB_RET(NAME, CODE, MODE) \ +STARTFN (NAME); \ + .cfi_startproc; \ + /* Create a fake CFA 4 bytes below the stack pointer. */ \ + .cfi_def_cfa 29,-4; \ + /* "Save" $sp in itself so we don't use the fake CFA. \ + This is: DW_CFA_val_expression r29, { DW_OP_reg29 }. */ \ + .cfi_escape 0x16,29,1,0x6d; \ + move $18,$31; \ + .cfi_register 31,18; \ + STUB_ARGS_##CODE; \ + .set noreorder; \ + jalr $2; \ + move $25,$2; \ + .set reorder; \ + MOVE_##MODE##_RET (f, $18); \ + .cfi_endproc; \ ENDFN (NAME) /* First, instantiate the single-float set. */ |