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SUSE:SLE-12-SP5:GA
gdb.2428
0003-S390-Add-vector-register-support-to-gdbser...
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File 0003-S390-Add-vector-register-support-to-gdbserver.patch of Package gdb.2428
Part of fate#318039 From bf2d68ab8c9da89a7caec2abdd2cc27c607f4a04 Mon Sep 17 00:00:00 2001 From: Andreas Arnez <arnez@linux.vnet.ibm.com> Date: Mon, 2 Mar 2015 10:57:40 +0100 Subject: [PATCH] S390: Add vector register support to gdbserver On S/390 targets with vector registers, enable gdbserver to advertise and handle the feature "org.gnu.gdb.s390.vx". gdb/gdbserver/ChangeLog: * Makefile.in (s390-vx-linux64.c, s390-tevx-linux64.c) (s390x-vx-linux64.c, s390x-tevx-linux64.c): New rules. (clean): Add "rm -f" for above C files. * configure.srv (srv_regobj): Add s390-vx-linux64.o, s390-tevx-linux64.o, s390x-vx-linux64.o, and s390x-tevx-linux64.o. (srv_xmlfiles): Add s390-vx-linux64.xml, s390-tevx-linux64.xml, s390x-vx-linux64.xml, s390x-tevx-linux64.xml, and s390-vx.xml. * linux-s390-low.c (HWCAP_S390_VX): New macro. (init_registers_s390_vx_linux64, init_registers_s390_tevx_linux64) (init_registers_s390x_vx_linux64) (init_registers_s390x_tevx_linux64) (tdesc_s390_vx_linux64, tdesc_s390_tevx_linux64) (tdesc_s390x_vx_linux64, tdesc_s390x_tevx_linux64): New extern declarations. (s390_fill_vxrs_low, s390_store_vxrs_low, s390_fill_vxrs_high) (s390_store_vxrs_high): New functions. (s390_regsets): Add entries for NT_S390_VXRS_LOW and NT_S390_VXRS_HIGH. (s390_arch_setup): Add logic for selecting one of the new target descriptions. Activate the new vector regsets if applicable. (initialize_low_arch): Also invoke init_registers_s390_vx_linux64, init_registers_s390_tevx_linux64, init_registers_s390x_vx_linux64, and init_registers_s390x_tevx_linux64. --- gdb/gdbserver/ChangeLog | 26 ++++++++++++ gdb/gdbserver/Makefile.in | 12 +++++- gdb/gdbserver/configure.srv | 9 ++++ gdb/gdbserver/linux-s390-low.c | 94 ++++++++++++++++++++++++++++++++++++++++-- 4 files changed, 137 insertions(+), 4 deletions(-) Index: gdb-7.9.1/gdb/gdbserver/Makefile.in =================================================================== --- gdb-7.9.1.orig/gdb/gdbserver/Makefile.in 2015-07-10 16:18:29.000000000 +0200 +++ gdb-7.9.1/gdb/gdbserver/Makefile.in 2015-07-10 16:19:13.000000000 +0200 @@ -356,7 +356,9 @@ clean: rm -f s390-linux32.c s390-linux64.c s390x-linux64.c rm -f s390-linux32v1.c s390-linux32v2.c s390-linux64v1.c rm -f s390-linux64v2.c s390x-linux64v1.c s390x-linux64v2.c - rm -f s390-te-linux32.c s390-te-linux64.c + rm -f s390-te-linux64.c s390x-te-linux64.c + rm -f s390-vx-linux64.c s390x-vx-linux64.c + rm -f s390-tevx-linux64.c s390x-tevx-linux64.c rm -f tic6x-c64xp-linux.c tic6x-c64x-linux.c tic6x-c62x-linux.c rm -f xml-builtin.c stamp-xml rm -f i386-avx.c i386-avx-linux.c @@ -684,6 +686,10 @@ s390-linux64v2.c : $(srcdir)/../regforma $(SHELL) $(regdat_sh) $(srcdir)/../regformats/s390-linux64v2.dat s390-linux64v2.c s390-te-linux64.c : $(srcdir)/../regformats/s390-te-linux64.dat $(regdat_sh) $(SHELL) $(regdat_sh) $(srcdir)/../regformats/s390-te-linux64.dat s390-te-linux64.c +s390-vx-linux64.c : $(srcdir)/../regformats/s390-vx-linux64.dat $(regdat_sh) + $(SHELL) $(regdat_sh) $(srcdir)/../regformats/s390-vx-linux64.dat s390-vx-linux64.c +s390-tevx-linux64.c : $(srcdir)/../regformats/s390-tevx-linux64.dat $(regdat_sh) + $(SHELL) $(regdat_sh) $(srcdir)/../regformats/s390-tevx-linux64.dat s390-tevx-linux64.c s390x-linux64.c : $(srcdir)/../regformats/s390x-linux64.dat $(regdat_sh) $(SHELL) $(regdat_sh) $(srcdir)/../regformats/s390x-linux64.dat s390x-linux64.c s390x-linux64v1.c : $(srcdir)/../regformats/s390x-linux64v1.dat $(regdat_sh) @@ -692,6 +698,10 @@ s390x-linux64v2.c : $(srcdir)/../regform $(SHELL) $(regdat_sh) $(srcdir)/../regformats/s390x-linux64v2.dat s390x-linux64v2.c s390x-te-linux64.c : $(srcdir)/../regformats/s390x-te-linux64.dat $(regdat_sh) $(SHELL) $(regdat_sh) $(srcdir)/../regformats/s390x-te-linux64.dat s390x-te-linux64.c +s390x-vx-linux64.c : $(srcdir)/../regformats/s390x-vx-linux64.dat $(regdat_sh) + $(SHELL) $(regdat_sh) $(srcdir)/../regformats/s390x-vx-linux64.dat s390x-vx-linux64.c +s390x-tevx-linux64.c : $(srcdir)/../regformats/s390x-tevx-linux64.dat $(regdat_sh) + $(SHELL) $(regdat_sh) $(srcdir)/../regformats/s390x-tevx-linux64.dat s390x-tevx-linux64.c tic6x-c64xp-linux.c : $(srcdir)/../regformats/tic6x-c64xp-linux.dat $(regdat_sh) $(SHELL) $(regdat_sh) $(srcdir)/../regformats/tic6x-c64xp-linux.dat tic6x-c64xp-linux.c Index: gdb-7.9.1/gdb/gdbserver/configure.srv =================================================================== --- gdb-7.9.1.orig/gdb/gdbserver/configure.srv 2015-07-10 16:18:29.000000000 +0200 +++ gdb-7.9.1/gdb/gdbserver/configure.srv 2015-07-10 16:19:13.000000000 +0200 @@ -260,10 +260,14 @@ case "${target}" in srv_regobj="${srv_regobj} s390-linux64v1.o" srv_regobj="${srv_regobj} s390-linux64v2.o" srv_regobj="${srv_regobj} s390-te-linux64.o" + srv_regobj="${srv_regobj} s390-vx-linux64.o" + srv_regobj="${srv_regobj} s390-tevx-linux64.o" srv_regobj="${srv_regobj} s390x-linux64.o" srv_regobj="${srv_regobj} s390x-linux64v1.o" srv_regobj="${srv_regobj} s390x-linux64v2.o" srv_regobj="${srv_regobj} s390x-te-linux64.o" + srv_regobj="${srv_regobj} s390x-vx-linux64.o" + srv_regobj="${srv_regobj} s390x-tevx-linux64.o" srv_tgtobj="$srv_linux_obj linux-s390-low.o" srv_xmlfiles="s390-linux32.xml" srv_xmlfiles="${srv_xmlfiles} s390-linux32v1.xml" @@ -272,16 +276,21 @@ case "${target}" in srv_xmlfiles="${srv_xmlfiles} s390-linux64v1.xml" srv_xmlfiles="${srv_xmlfiles} s390-linux64v2.xml" srv_xmlfiles="${srv_xmlfiles} s390-te-linux64.xml" + srv_xmlfiles="${srv_xmlfiles} s390-vx-linux64.xml" + srv_xmlfiles="${srv_xmlfiles} s390-tevx-linux64.xml" srv_xmlfiles="${srv_xmlfiles} s390x-linux64.xml" srv_xmlfiles="${srv_xmlfiles} s390x-linux64v1.xml" srv_xmlfiles="${srv_xmlfiles} s390x-linux64v2.xml" srv_xmlfiles="${srv_xmlfiles} s390x-te-linux64.xml" + srv_xmlfiles="${srv_xmlfiles} s390x-vx-linux64.xml" + srv_xmlfiles="${srv_xmlfiles} s390x-tevx-linux64.xml" srv_xmlfiles="${srv_xmlfiles} s390-core32.xml" srv_xmlfiles="${srv_xmlfiles} s390-core64.xml" srv_xmlfiles="${srv_xmlfiles} s390x-core64.xml" srv_xmlfiles="${srv_xmlfiles} s390-acr.xml" srv_xmlfiles="${srv_xmlfiles} s390-fpr.xml" srv_xmlfiles="${srv_xmlfiles} s390-tdb.xml" + srv_xmlfiles="${srv_xmlfiles} s390-vx.xml" srv_linux_usrregs=yes srv_linux_regsets=yes srv_linux_thread_db=yes Index: gdb-7.9.1/gdb/gdbserver/linux-s390-low.c =================================================================== --- gdb-7.9.1.orig/gdb/gdbserver/linux-s390-low.c 2015-07-10 16:18:29.000000000 +0200 +++ gdb-7.9.1/gdb/gdbserver/linux-s390-low.c 2015-07-10 16:19:13.000000000 +0200 @@ -36,6 +36,10 @@ #define HWCAP_S390_TE 1024 #endif +#ifndef HWCAP_S390_VX +#define HWCAP_S390_VX 2048 +#endif + #ifndef PTRACE_GETREGSET #define PTRACE_GETREGSET 0x4204 #endif @@ -72,6 +76,14 @@ extern const struct target_desc *tdesc_s void init_registers_s390_te_linux64 (void); extern const struct target_desc *tdesc_s390_te_linux64; +/* Defined in auto-generated file s390-vx-linux64.c. */ +void init_registers_s390_vx_linux64 (void); +extern const struct target_desc *tdesc_s390_vx_linux64; + +/* Defined in auto-generated file s390-tevx-linux64.c. */ +void init_registers_s390_tevx_linux64 (void); +extern const struct target_desc *tdesc_s390_tevx_linux64; + /* Defined in auto-generated file s390x-linux64.c. */ void init_registers_s390x_linux64 (void); extern const struct target_desc *tdesc_s390x_linux64; @@ -88,6 +100,14 @@ extern const struct target_desc *tdesc_s void init_registers_s390x_te_linux64 (void); extern const struct target_desc *tdesc_s390x_te_linux64; +/* Defined in auto-generated file s390x-vx-linux64.c. */ +void init_registers_s390x_vx_linux64 (void); +extern const struct target_desc *tdesc_s390x_vx_linux64; + +/* Defined in auto-generated file s390x-tevx-linux64.c. */ +void init_registers_s390x_tevx_linux64 (void); +extern const struct target_desc *tdesc_s390x_tevx_linux64; + #define s390_num_regs 52 static int s390_regmap[] = { @@ -324,6 +344,46 @@ s390_store_tdb (struct regcache *regcach supply_register (regcache, tr0 + i, (const char *) buf + 8 * (16 + i)); } +static void +s390_fill_vxrs_low (struct regcache *regcache, void *buf) +{ + int v0 = find_regno (regcache->tdesc, "v0l"); + int i; + + for (i = 0; i < 16; i++) + collect_register (regcache, v0 + i, (char *) buf + 8 * i); +} + +static void +s390_store_vxrs_low (struct regcache *regcache, const void *buf) +{ + int v0 = find_regno (regcache->tdesc, "v0l"); + int i; + + for (i = 0; i < 16; i++) + supply_register (regcache, v0 + i, (const char *) buf + 8 * i); +} + +static void +s390_fill_vxrs_high (struct regcache *regcache, void *buf) +{ + int v16 = find_regno (regcache->tdesc, "v16"); + int i; + + for (i = 0; i < 16; i++) + collect_register (regcache, v16 + i, (char *) buf + 16 * i); +} + +static void +s390_store_vxrs_high (struct regcache *regcache, const void *buf) +{ + int v16 = find_regno (regcache->tdesc, "v16"); + int i; + + for (i = 0; i < 16; i++) + supply_register (regcache, v16 + i, (const char *) buf + 16 * i); +} + static struct regset_info s390_regsets[] = { { 0, 0, 0, 0, GENERAL_REGS, s390_fill_gregset, NULL }, /* Last break address is read-only; no fill function. */ @@ -334,6 +394,10 @@ static struct regset_info s390_regsets[] /* TDB is read-only. */ { PTRACE_GETREGSET, -1, NT_S390_TDB, 0, EXTENDED_REGS, NULL, s390_store_tdb }, + { PTRACE_GETREGSET, PTRACE_SETREGSET, NT_S390_VXRS_LOW, 0, + EXTENDED_REGS, s390_fill_vxrs_low, s390_store_vxrs_low }, + { PTRACE_GETREGSET, PTRACE_SETREGSET, NT_S390_VXRS_HIGH, 0, + EXTENDED_REGS, s390_fill_vxrs_high, s390_store_vxrs_high }, { 0, 0, 0, -1, -1, NULL, NULL } }; @@ -439,6 +503,8 @@ s390_arch_setup (void) int have_regset_system_call = s390_check_regset (pid, NT_S390_SYSTEM_CALL, 4); int have_regset_tdb = s390_check_regset (pid, NT_S390_TDB, 256); + int have_regset_vxrs = s390_check_regset (pid, NT_S390_VXRS_LOW, 128) + && s390_check_regset (pid, NT_S390_VXRS_HIGH, 256); /* Assume 31-bit inferior process. */ if (have_regset_system_call) @@ -464,8 +530,14 @@ s390_arch_setup (void) if (have_regset_tdb) have_regset_tdb = (s390_get_hwcap (tdesc_s390x_linux64v2) & HWCAP_S390_TE) != 0; - - if (have_regset_tdb) + if (have_regset_vxrs) + have_regset_vxrs = + (s390_get_hwcap (tdesc_s390x_linux64v2) & HWCAP_S390_VX) != 0; + + if (have_regset_vxrs) + tdesc = (have_regset_tdb ? tdesc_s390x_tevx_linux64 : + tdesc_s390x_vx_linux64); + else if (have_regset_tdb) tdesc = tdesc_s390x_te_linux64; else if (have_regset_system_call) tdesc = tdesc_s390x_linux64v2; @@ -482,8 +554,13 @@ s390_arch_setup (void) have_hwcap_s390_high_gprs = 1; if (have_regset_tdb) have_regset_tdb = (s390_get_hwcap (tdesc) & HWCAP_S390_TE) != 0; + if (have_regset_vxrs) + have_regset_vxrs = (s390_get_hwcap (tdesc) & HWCAP_S390_VX) != 0; - if (have_regset_tdb) + if (have_regset_vxrs) + tdesc = (have_regset_tdb ? tdesc_s390_tevx_linux64 : + tdesc_s390_vx_linux64); + else if (have_regset_tdb) tdesc = tdesc_s390_te_linux64; else if (have_regset_system_call) tdesc = tdesc_s390_linux64v2; @@ -508,6 +585,13 @@ s390_arch_setup (void) break; case NT_S390_TDB: regset->size = have_regset_tdb ? 256 : 0; + break; + case NT_S390_VXRS_LOW: + regset->size = have_regset_vxrs ? 128 : 0; + break; + case NT_S390_VXRS_HIGH: + regset->size = have_regset_vxrs ? 256 : 0; + break; default: break; } @@ -615,10 +699,14 @@ initialize_low_arch (void) init_registers_s390_linux64v1 (); init_registers_s390_linux64v2 (); init_registers_s390_te_linux64 (); + init_registers_s390_vx_linux64 (); + init_registers_s390_tevx_linux64 (); init_registers_s390x_linux64 (); init_registers_s390x_linux64v1 (); init_registers_s390x_linux64v2 (); init_registers_s390x_te_linux64 (); + init_registers_s390x_vx_linux64 (); + init_registers_s390x_tevx_linux64 (); initialize_regsets_info (&s390_regsets_info); #ifdef __s390x__
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