Ping. On 03/05/2013 12:15 PM, Meador Inge wrote: > Hi All, > > This patch fixes a minor annoyance that causes backtraces to disappear > inside of aeabi_ldivmod and aeabi_uldivmod due to the lack of appropriate > DWARF information. I fixed the problem by adding the necessary cfi_* > macros in these functions. > > OK? > > 2013-03-05 Meador Inge <mead...@codesourcery.com> > > * config/arm/bpabi.S (aeabi_ldivmod): Add DWARF information for > computing the location of the link register. > (aeabi_uldivmod): Ditto. > > Index: libgcc/config/arm/bpabi.S > =================================================================== > --- libgcc/config/arm/bpabi.S (revision 196470) > +++ libgcc/config/arm/bpabi.S (working copy) > @@ -123,6 +123,7 @@ ARM_FUNC_START aeabi_ulcmp > #ifdef L_aeabi_ldivmod > > ARM_FUNC_START aeabi_ldivmod > + cfi_start __aeabi_ldivmod, LSYM(Lend_aeabi_ldivmod) > test_div_by_zero signed > > sub sp, sp, #8 > @@ -132,17 +133,20 @@ ARM_FUNC_START aeabi_ldivmod > #else > do_push {sp, lr} > #endif > +98: cfi_push 98b - __aeabi_ldivmod, 0xe, -0xc, 0x10 > bl SYM(__gnu_ldivmod_helper) __PLT__ > ldr lr, [sp, #4] > add sp, sp, #8 > do_pop {r2, r3} > RET > + cfi_end LSYM(Lend_aeabi_ldivmod) > > #endif /* L_aeabi_ldivmod */ > > #ifdef L_aeabi_uldivmod > > ARM_FUNC_START aeabi_uldivmod > + cfi_start __aeabi_uldivmod, LSYM(Lend_aeabi_uldivmod) > test_div_by_zero unsigned > > sub sp, sp, #8 > @@ -152,11 +156,13 @@ ARM_FUNC_START aeabi_uldivmod > #else > do_push {sp, lr} > #endif > +98: cfi_push 98b - __aeabi_uldivmod, 0xe, -0xc, 0x10 > bl SYM(__gnu_uldivmod_helper) __PLT__ > ldr lr, [sp, #4] > add sp, sp, #8 > do_pop {r2, r3} > RET > - > + cfi_end LSYM(Lend_aeabi_uldivmod) > + > #endif /* L_aeabi_divmod */ > >
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