Date: Thu, 22 Aug 2019 00:35:17 +0000 (UTC) From: Conrad Meyer <cem@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r351369 - head/sys/amd64/include Message-ID: <201908220035.x7M0ZH3R088142@repo.freebsd.org>
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Author: cem Date: Thu Aug 22 00:35:17 2019 New Revision: 351369 URL: https://svnweb.freebsd.org/changeset/base/351369 Log: gdb(4):amd64: Bump MI GDB_BUFSZ for more efficient transfers A bigger buffer reduces the RTTs to transfer long messages and is otherwise relatively harmless, especially on systems with plenty of memory. Modified: head/sys/amd64/include/gdb_machdep.h Modified: head/sys/amd64/include/gdb_machdep.h ============================================================================== --- head/sys/amd64/include/gdb_machdep.h Thu Aug 22 00:34:11 2019 (r351368) +++ head/sys/amd64/include/gdb_machdep.h Thu Aug 22 00:35:17 2019 (r351369) @@ -31,9 +31,10 @@ #ifndef _MACHINE_GDB_MACHDEP_H_ #define _MACHINE_GDB_MACHDEP_H_ -#define GDB_BUFSZ (GDB_NREGS * 16) +#define GDB_BUFSZ 4096 #define GDB_NREGS 56 #define GDB_REG_PC 16 +_Static_assert(GDB_BUFSZ >= (GDB_NREGS * 16), "buffer fits 'g' regs"); static __inline size_t gdb_cpu_regsz(int regnum)
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