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| author | Charles Baylis <charles.baylis@linaro.org> | 2014-06-18 15:43:35 +0000 |
|---|---|---|
| committer | Charles Baylis <cbaylis@gcc.gnu.org> | 2014-06-18 15:43:35 +0000 |
| commit | 158ef346fd46f605b345be902dc9f1f69e5be4ae (patch) | |
| tree | 5e3544b06eb5a731a2cba076460f91c584acee8c | |
| parent | 1338118928aa7368a01be65e40a95e7c4ba270d0 (diff) | |
| download | gcc-158ef346fd46f605b345be902dc9f1f69e5be4ae.zip gcc-158ef346fd46f605b345be902dc9f1f69e5be4ae.tar.gz gcc-158ef346fd46f605b345be902dc9f1f69e5be4ae.tar.bz2 | |
bpabi.S (__aeabi_ldivmod, [...]): Use .cfi_* directives for DWARF annotations.
2014-06-18 Charles Baylis <charles.baylis@linaro.org>
* config/arm/bpabi.S (__aeabi_ldivmod, __aeabi_uldivmod,
push_for_divide, pop_for_divide): Use .cfi_* directives for DWARF
annotations. Fix DWARF information.
From-SVN: r211795
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | libgcc/config/arm/bpabi.S | 21 |
2 files changed, 22 insertions, 5 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 3d46032..054ba98 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,5 +1,11 @@ 2014-06-18 Charles Baylis <charles.baylis@linaro.org> + * config/arm/bpabi.S (__aeabi_ldivmod, __aeabi_uldivmod, + push_for_divide, pop_for_divide): Use .cfi_* directives for DWARF + annotations. Fix DWARF information. + +2014-06-18 Charles Baylis <charles.baylis@linaro.org> + * config/arm/bpabi.S (__aeabi_ldivmod): Perform division using __udivmoddi4, and fixups for negative operands. diff --git a/libgcc/config/arm/bpabi.S b/libgcc/config/arm/bpabi.S index c044167..959ecb1 100644 --- a/libgcc/config/arm/bpabi.S +++ b/libgcc/config/arm/bpabi.S @@ -22,6 +22,8 @@ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see <http://www.gnu.org/licenses/>. */ + .cfi_sections .debug_frame + #ifdef __ARM_EABI__ /* Some attributes that are common to all routines in this file. */ /* Tag_ABI_align_needed: This code does not require 8-byte @@ -145,7 +147,8 @@ ARM_FUNC_START aeabi_ulcmp sub sp, sp, #8 do_push {sp, lr} #endif -98: cfi_push 98b - \fname, 0xe, -0xc, 0x10 + .cfi_adjust_cfa_offset 16 + .cfi_offset 14, -12 .endm /* restore stack */ @@ -158,6 +161,8 @@ ARM_FUNC_START aeabi_ulcmp add sp, sp, #8 do_pop {r2, r3} #endif + .cfi_restore 14 + .cfi_adjust_cfa_offset 0 .endm #ifdef L_aeabi_ldivmod @@ -171,7 +176,7 @@ ARM_FUNC_START aeabi_ulcmp r2:r3 remainder */ ARM_FUNC_START aeabi_ldivmod - cfi_start __aeabi_ldivmod, LSYM(Lend_aeabi_ldivmod) + .cfi_startproc test_div_by_zero signed push_for_divide __aeabi_ldivmod @@ -181,16 +186,19 @@ ARM_FUNC_START aeabi_ldivmod blt 2f /* arguments in (r0:r1), (r2:r3) and *sp */ bl SYM(__udivmoddi4) __PLT__ + .cfi_remember_state pop_for_divide RET 1: /* xxh:xxl is negative */ + .cfi_restore_state negs xxl, xxl sbc xxh, xxh, xxh, lsl #1 /* Thumb-2 has no RSC, so use X - 2X */ cmp yyh, #0 blt 3f /* arguments in (r0:r1), (r2:r3) and *sp */ bl SYM(__udivmoddi4) __PLT__ + .cfi_remember_state pop_for_divide negs xxl, xxl sbc xxh, xxh, xxh, lsl #1 /* Thumb-2 has no RSC, so use X - 2X */ @@ -199,16 +207,19 @@ ARM_FUNC_START aeabi_ldivmod RET 2: /* only yyh:yyl is negative */ + .cfi_restore_state negs yyl, yyl sbc yyh, yyh, yyh, lsl #1 /* Thumb-2 has no RSC, so use X - 2X */ /* arguments in (r0:r1), (r2:r3) and *sp */ bl SYM(__udivmoddi4) __PLT__ + .cfi_remember_state pop_for_divide negs xxl, xxl sbc xxh, xxh, xxh, lsl #1 /* Thumb-2 has no RSC, so use X - 2X */ RET 3: /* both xxh:xxl and yyh:yyl are negative */ + .cfi_restore_state negs yyl, yyl sbc yyh, yyh, yyh, lsl #1 /* Thumb-2 has no RSC, so use X - 2X */ /* arguments in (r0:r1), (r2:r3) and *sp */ @@ -218,7 +229,7 @@ ARM_FUNC_START aeabi_ldivmod sbc yyh, yyh, yyh, lsl #1 /* Thumb-2 has no RSC, so use X - 2X */ RET - cfi_end LSYM(Lend_aeabi_ldivmod) + .cfi_endproc #endif /* L_aeabi_ldivmod */ @@ -233,7 +244,7 @@ ARM_FUNC_START aeabi_ldivmod r2:r3 remainder */ ARM_FUNC_START aeabi_uldivmod - cfi_start __aeabi_uldivmod, LSYM(Lend_aeabi_uldivmod) + .cfi_startproc test_div_by_zero unsigned push_for_divide __aeabi_uldivmod @@ -241,7 +252,7 @@ ARM_FUNC_START aeabi_uldivmod bl SYM(__udivmoddi4) __PLT__ pop_for_divide RET - cfi_end LSYM(Lend_aeabi_uldivmod) + .cfi_endproc #endif /* L_aeabi_divmod */ |