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arm: Fix warning in libgcc/config/arm/pr-support.c

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I have noticed some warnings when building GCC for arm-eabi:
pr-support.c:110:7: warning: variable ‘set_pac_sp’ set but not used [-Wunused-but-set-variable]
pr-support.c:109:7: warning: variable ‘set_pac’ set but not used [-Wunused-but-set-variable]

This small patch avoids them by defining these two variables undef
TARGET_HAVE_PACBTI, like the code which actually uses them.

	libgcc/
	* config/arm/pr-support.c (__gnu_unwind_execute): Use
	TARGET_HAVE_PACBTI to define set_pac and set_pac_sp.
This commit is contained in:
Christophe Lyon 2023-01-30 17:39:22 +01:00
parent 59e0376f60
commit 3dba5b2cf2
1 changed files with 6 additions and 0 deletions
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6
libgcc/config/arm/pr-support.c
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@ -106,8 +106,10 @@ __gnu_unwind_execute (_Unwind_Context * context, __gnu_unwind_state * uws)
{
_uw op;
int set_pc;
#if defined(TARGET_HAVE_PACBTI)
int set_pac = 0;
int set_pac_sp = 0;
#endif
_uw reg;
_uw sp;
@ -258,7 +260,9 @@ __gnu_unwind_execute (_Unwind_Context * context, __gnu_unwind_state * uws)
if (_Unwind_VRS_Pop (context, _UVRSC_PAC, 0, _UVRSD_UINT32)
!= _UVRSR_OK)
return _URC_FAILURE;
#if defined(TARGET_HAVE_PACBTI)
set_pac = 1;
#endif
continue;
}
@ -266,7 +270,9 @@ __gnu_unwind_execute (_Unwind_Context * context, __gnu_unwind_state * uws)
if (op == 0xb5)
{
_Unwind_VRS_Get (context, _UVRSC_CORE, R_SP, _UVRSD_UINT32, &sp);
#if defined(TARGET_HAVE_PACBTI)
set_pac_sp = 1;
#endif
continue;
}