diff options
| author |   Yuanjie Huang <yuanjie.huang@windriver.com> | 2015-07-08 11:15:11 +0800 |
|---|---|---|
| committer |   Richard Purdie <richard.purdie@linuxfoundation.org> | 2015-07-08 13:13:37 +0100 |
| commit | c82557d2bf8c3d8081754561df46cba530103164 (patch) | |
| tree | e3c6bcc706992f7a0beeea08af8c0b2eb1c15376 /meta/recipes-devtools/gdb/gdb | |
| parent | 5fc580fc444e45d00de0e50d32b6e6e0b2e6b7ea (diff) | |
| download | openembedded-core-c82557d2bf8c3d8081754561df46cba530103164.tar.gz | |
gdb: Fix detection of 64-bit PPC inferior in gdbserver
Fix 64-bit detection according to PowerISA Boot III-S.
https://sourceware.org/ml/gdb-patches/2014-12/msg00239.html
Written by: Yao Qi <yao@codesourcery.com>
Signed-off-by: Yuanjie Huang <yuanjie.huang@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Diffstat (limited to 'meta/recipes-devtools/gdb/gdb')
| -rw-r--r-- | meta/recipes-devtools/gdb/gdb/fix-detection-of-64-bit-PPC-inferior-in-gdbserver.patch | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/meta/recipes-devtools/gdb/gdb/fix-detection-of-64-bit-PPC-inferior-in-gdbserver.patch b/meta/recipes-devtools/gdb/gdb/fix-detection-of-64-bit-PPC-inferior-in-gdbserver.patch new file mode 100644 index 0000000000..2854352309 --- /dev/null +++ b/meta/recipes-devtools/gdb/gdb/fix-detection-of-64-bit-PPC-inferior-in-gdbserver.patch @@ -0,0 +1,56 @@ +From 4fe67dbafa1bee679daecc12ed30621d5c2605de Mon Sep 17 00:00:00 2001 +From: Yao Qi <yao@codesourcery.com> +Date: Mon, 11 May 2015 10:57:33 +0800 +Subject: [PATCH] Fix detection of 64-bit PPC inferior in gdbserver + +Issue #16775 + +* gdbserver/linux-ppc-low.c (ppc_arch_setup): Change variable msr to type +'unsigned long'. Check bit 63 or bit 31 is one. + +https://sourceware.org/ml/gdb-patches/2014-12/msg00239.html +Written by: Yao Qi <yao@codesourcery.com> + +Upstream-Status: Pending + +Signed-off-by: Yuanjie Huang <yuanjie.huang@windriver.com> +--- + gdb/gdbserver/linux-ppc-low.c | 11 +++++++---- + 1 file changed, 7 insertions(+), 4 deletions(-) + +diff --git a/gdb/gdbserver/linux-ppc-low.c b/gdb/gdbserver/linux-ppc-low.c +index 63d4218..a62cf22 100644 +--- a/gdb/gdbserver/linux-ppc-low.c ++++ b/gdb/gdbserver/linux-ppc-low.c +@@ -374,7 +374,7 @@ ppc_arch_setup (void) + { + const struct target_desc *tdesc; + #ifdef __powerpc64__ +- long msr; ++ unsigned long msr; + struct regcache *regcache; + + /* On a 64-bit host, assume 64-bit inferior process with no +@@ -384,13 +384,16 @@ ppc_arch_setup (void) + current_process ()->tdesc = tdesc; + ppc_hwcap = 0; + +- /* Only if the high bit of the MSR is set, we actually have +- a 64-bit inferior. */ ++ /* We actually have a 64-bit inferior only if the certain bit of the ++ MSR is set. The PowerISA Book III-S MSR is different from the ++ PowerISA Book III-E MSR. The Book III-S MSR is 64 bits wide, and ++ its MSR[SF] is the bit 0 of a 64-bit value. Book III-E MSR is 32 ++ bits wide, and its MSR[CM] is the bit 0 of a 32-bit value. */ + regcache = new_register_cache (tdesc); + fetch_inferior_registers (regcache, find_regno (tdesc, "msr")); + collect_register_by_name (regcache, "msr", &msr); + free_register_cache (regcache); +- if (msr < 0) ++ if (msr & 0x8000000080000000) + { + ppc_get_hwcap (&ppc_hwcap); + if (ppc_hwcap & PPC_FEATURE_CELL) +-- +1.8.5.2.233.g932f7e4 + |