From: Carl Love <cel@us.ibm.com>
Date: Fri, 19 Nov 2021 18:33:51 +0000 (+0000)
Subject: gdb: Add PowerPC support to gdb.dwarf2/frame-inlined-in-outer-frame
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=a85885ff7ec52a8fe4a0b1008bcde20ff13c54d0;p=binutils-gdb.git

gdb: Add PowerPC support to gdb.dwarf2/frame-inlined-in-outer-frame

This patch adds an #elif defined for PowerPC to setup the exit_0 macro.
This patch addes the needed macro definitionald logic to handle both elfV1
and elfV2.

The patch has been successfully tested on both PowerPC BE, Powerpc LE and
X86_64 with no regressions.
---

diff --git a/gdb/testsuite/gdb.dwarf2/frame-inlined-in-outer-frame.S b/gdb/testsuite/gdb.dwarf2/frame-inlined-in-outer-frame.S
index 9fb6e7b7164..224b50b20a5 100644
--- a/gdb/testsuite/gdb.dwarf2/frame-inlined-in-outer-frame.S
+++ b/gdb/testsuite/gdb.dwarf2/frame-inlined-in-outer-frame.S
@@ -65,6 +65,16 @@
 	swi 0x0
 .endm
 
+#elif defined __powerpc64__
+
+# define RETURN_ADDRESS_REGNO 65
+
+.macro exit_0
+	li 0, __NR_exit  /* r0 - contains system call number */
+	li 3, 0          /* r3 - contains first argument for sys call */
+	sc
+.endm
+
 #else
 # error "Unsupported architecture"
 #endif
@@ -90,6 +100,20 @@
    16 }
 */
 
+#if defined __powerpc64__
+#  if _CALL_ELF == 2
+.abiversion 2   /* Tell gdb what ELF version to use. */
+#  else
+.abiversion 1   /* Tell gdb what ELF version to use. */
+.align 2
+.section ".opd", "aw"
+.align 3
+.quad ._start,.TOC.@tocbase,0
+.previous
+.type ._start,@function
+._start:
+#  endif
+#endif
 .global _start
 _start:
 .cfi_startproc