diff options
Diffstat (limited to 'patches/gcc/linaro-5.4-2017.05/875-xtensa-fix-xtensa_fallback_frame_state-for-call0-ABI.patch')
| -rw-r--r-- | patches/gcc/linaro-5.4-2017.05/875-xtensa-fix-xtensa_fallback_frame_state-for-call0-ABI.patch | 108 |
1 files changed, 0 insertions, 108 deletions
diff --git a/patches/gcc/linaro-5.4-2017.05/875-xtensa-fix-xtensa_fallback_frame_state-for-call0-ABI.patch b/patches/gcc/linaro-5.4-2017.05/875-xtensa-fix-xtensa_fallback_frame_state-for-call0-ABI.patch deleted file mode 100644 index d128596..0000000 --- a/patches/gcc/linaro-5.4-2017.05/875-xtensa-fix-xtensa_fallback_frame_state-for-call0-ABI.patch +++ /dev/null @@ -1,108 +0,0 @@ -From 7d3692c6933f7ff87bf110dede8e33e922b164c6 Mon Sep 17 00:00:00 2001 -From: jcmvbkbc <jcmvbkbc@138bc75d-0d04-0410-961f-82ee72b054a4> -Date: Tue, 15 Sep 2015 19:30:32 +0000 -Subject: [PATCH] xtensa: fix xtensa_fallback_frame_state for call0 ABI - -2015-09-15 Max Filippov <jcmvbkbc@gmail.com> -gcc/ - * config/xtensa/xtensa.h (DWARF_ALT_FRAME_RETURN_COLUMN): New - definition. - (DWARF_FRAME_REGISTERS): Reserve space for one extra register in - call0 ABI. - -libgcc/ - * config/xtensa/linux-unwind.h (xtensa_fallback_frame_state): - Add support for call0 ABI. - -git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227809 138bc75d-0d04-0410-961f-82ee72b054a4 - -Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> ---- - gcc/config/xtensa/xtensa.h | 4 +++- - libgcc/config/xtensa/linux-unwind.h | 30 ++++++++++++++++++++++++++++-- - 2 files changed, 31 insertions(+), 3 deletions(-) - -diff --git a/gcc/config/xtensa/xtensa.h b/gcc/config/xtensa/xtensa.h -index 584080b..e165def 100644 ---- a/gcc/config/xtensa/xtensa.h -+++ b/gcc/config/xtensa/xtensa.h -@@ -813,7 +813,9 @@ typedef struct xtensa_args - for debugging. */ - #define INCOMING_RETURN_ADDR_RTX gen_rtx_REG (Pmode, 0) - #define DWARF_FRAME_RETURN_COLUMN DWARF_FRAME_REGNUM (0) --#define DWARF_FRAME_REGISTERS 16 -+#define DWARF_ALT_FRAME_RETURN_COLUMN 16 -+#define DWARF_FRAME_REGISTERS (DWARF_ALT_FRAME_RETURN_COLUMN \ -+ + (TARGET_WINDOWED_ABI ? 0 : 1)) - #define EH_RETURN_DATA_REGNO(N) ((N) < 2 ? (N) + 2 : INVALID_REGNUM) - #define ASM_PREFERRED_EH_DATA_FORMAT(CODE, GLOBAL) \ - (flag_pic \ -diff --git a/libgcc/config/xtensa/linux-unwind.h b/libgcc/config/xtensa/linux-unwind.h -index 9daf738..9a67b5d 100644 ---- a/libgcc/config/xtensa/linux-unwind.h -+++ b/libgcc/config/xtensa/linux-unwind.h -@@ -52,7 +52,6 @@ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see - #define ENTRY_BYTE 0x36 - #endif - --#ifdef __XTENSA_WINDOWED_ABI__ - #define MD_FALLBACK_FRAME_STATE_FOR xtensa_fallback_frame_state - - static _Unwind_Reason_Code -@@ -61,6 +60,10 @@ xtensa_fallback_frame_state (struct _Unwind_Context *context, - { - unsigned char *pc = context->ra; - struct sigcontext *sc; -+#if defined(__XTENSA_CALL0_ABI__) -+ _Unwind_Ptr new_cfa; -+ int i; -+#endif - - struct rt_sigframe { - siginfo_t info; -@@ -76,6 +79,7 @@ xtensa_fallback_frame_state (struct _Unwind_Context *context, - || pc[5] != SYSC_BYTE2) - return _URC_END_OF_STACK; - -+#if defined(__XTENSA_WINDOWED_ABI__) - rt_ = context->sp; - sc = &rt_->uc.uc_mcontext; - fs->signal_regs = (_Unwind_Word *) sc->sc_a; -@@ -90,11 +94,33 @@ xtensa_fallback_frame_state (struct _Unwind_Context *context, - } - else - fs->signal_ra = sc->sc_pc; -+#elif defined(__XTENSA_CALL0_ABI__) -+ rt_ = context->cfa; -+ sc = &rt_->uc.uc_mcontext; -+ -+ new_cfa = (_Unwind_Ptr) sc; -+ fs->regs.cfa_how = CFA_REG_OFFSET; -+ fs->regs.cfa_reg = __LIBGCC_STACK_POINTER_REGNUM__; -+ fs->regs.cfa_offset = new_cfa - (_Unwind_Ptr) context->cfa; -+ -+ for (i = 0; i < 16; i++) -+ { -+ fs->regs.reg[i].how = REG_SAVED_OFFSET; -+ fs->regs.reg[i].loc.offset = (_Unwind_Ptr) &(sc->sc_a[i]) - new_cfa; -+ } -+ -+ fs->regs.reg[__LIBGCC_DWARF_ALT_FRAME_RETURN_COLUMN__].how = -+ REG_SAVED_VAL_OFFSET; -+ fs->regs.reg[__LIBGCC_DWARF_ALT_FRAME_RETURN_COLUMN__].loc.offset = -+ (_Unwind_Ptr) (sc->sc_pc) - new_cfa; -+ fs->retaddr_column = __LIBGCC_DWARF_ALT_FRAME_RETURN_COLUMN__; -+#else -+#error Unsupported Xtensa ABI -+#endif - - fs->signal_frame = 1; - return _URC_NO_REASON; - } - --#endif /* __XTENSA_WINDOWED_ABI__ */ - - #endif /* ifdef inhibit_libc */ --- -2.1.4 - |