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authorJiangshuai Li <jiangshuai_li@linux.alibaba.com>2022-08-08 11:15:30 +0800
committerJiangshuai Li <jiangshuai_li@linux.alibaba.com>2022-08-08 11:15:30 +0800
commit0d3c36672045725236341529f087391470f65e87 (patch)
treeff56e5c0443bf013405857117ebff6ddb4f04b5c /gdb/csky-tdep.h
parentdd27fd47f174b537b9e6f203eb856b1b325dce85 (diff)
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gdb/csky support .reg2 for kernel 4.x and later
When kernel's version >= 4.x, the size of .reg2 section will be 400. Contents of .reg2 are { unsigned long vr[96]; unsigned long fcr; unsigned long fesr; unsigned long fid; unsigned long reserved; }; VR[96] means: (vr0~vr15) + (fr16~fr31), each Vector register is 128-bits, each Float register is 64 bits, the total size is (4*96). In addition, for fr0~fr15, each FRx is the lower 64 bits of the corresponding VRx. So fr0~fr15 and vr0~vr15 regisetrs use the same offset.
Diffstat (limited to 'gdb/csky-tdep.h')
-rw-r--r--gdb/csky-tdep.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/gdb/csky-tdep.h b/gdb/csky-tdep.h
index 54000ab..3ee50fc 100644
--- a/gdb/csky-tdep.h
+++ b/gdb/csky-tdep.h
@@ -93,6 +93,9 @@ enum csky_regnum
CSKY_PSR_REGNUM = CSKY_CR0_REGNUM,
CSKY_MAX_REGISTER_SIZE = 16,
+
+ /* Actually, the max regs number should be 1187. But if the
+ gdb stub does not send a tdesc-xml file to gdb, 253 works. */
CSKY_MAX_REGS = 253
};