From f2cf6173f33bbb562881c571bfecd129fe94b158 Mon Sep 17 00:00:00 2001 From: Edjunior Barbosa Machado Date: Fri, 26 Oct 2018 09:37:54 -0300 Subject: [PowerPC] Add support for TAR This patch adds support for the Target Address Register for powerpc linux native and core file targets, and in the powerpc linux server stub. gdb/ChangeLog: 2018-10-26 Edjunior Barbosa Machado Pedro Franco de Carvalho * arch/ppc-linux-tdesc.h (tdesc_powerpc_isa207_vsx32l) (tdesc_powerpc_isa207_vsx64l): Declare. * arch/ppc-linux-common.h (PPC_LINUX_SIZEOF_TARREGSET): Define. (struct ppc_linux_features) : New field. (ppc_linux_no_features): Add initializer for isa207 field. * arch/ppc-linux-common.c (ppc_linux_match_description): Return new tdescs. * nat/ppc-linux.h (PPC_FEATURE2_ARCH_2_07, PPC_FEATURE2_TAR) (NT_PPC_TAR): Define if not already defined. * features/Makefile (WHICH): Add rs6000/powerpc-isa207-vsx32l and rs6000/powerpc-isa207-vsx64l. (XMLTOC): Add rs6000/powerpc-isa207-vsx32l.xml and rs6000/powerpc-isa207-vsx64l.xml. * features/rs6000/power-tar.xml: New file. * features/rs6000/powerpc-isa207-vsx32l.xml: New file. * features/rs6000/powerpc-isa207-vsx64l.xml: New file. * features/rs6000/powerpc-isa207-vsx32l.c: Generate. * features/rs6000/powerpc-isa207-vsx64l.c: Generate. * regformats/rs6000/powerpc-isa207-vsx32l.dat: Generate. * regformats/rs6000/powerpc-isa207-vsx64l.dat: Generate. * ppc-linux-nat.c (fetch_register, fetch_ppc_registers): Call fetch_regset with the TAR regset. (store_register, store_ppc_registers): Call store_regset with the TAR regset. (ppc_linux_nat_target::read_description): Set isa207 field in the features struct if needed. * ppc-linux-tdep.c: Include features/rs6000/powerpc-isa207-vsx32l.c and features/rs6000/powerpc-isa207-vsx64l.c. (ppc32_regmap_tar, ppc32_linux_tarregset): New globals. (ppc_linux_iterate_over_regset_sections): Call back with the tar regset. (ppc_linux_core_read_description): Check if the tar section is present and set isa207 in the features struct. (_initialize_ppc_linux_tdep): Call initialize_tdesc_powerpc_isa207_vsx32l and initialize_tdesc_powerpc_isa207_vsx64l. * ppc-linux-tdep.h (ppc32_linux_tarregset): Declare. * ppc-tdep.h (gdbarch_tdep) : New field. (enum) : New enum value. * rs6000-tdep.c (rs6000_gdbarch_init): Look for and validate tar feature. (ppc_process_record_op31): Record changes to TAR. gdb/gdbserver/ChangeLog: 2018-10-26 Pedro Franco de Carvalho * configure.srv (ipa_ppc_linux_regobj): Add powerpc-isa207-vsx64l-ipa.o and powerpc-isa207-vsx32l-ipa.o. (powerpc*-*-linux*): Add powerpc-isa207-vsx32l.o and powerpc-isa207-vsx64l.o to srv_regobj, add rs6000/power-tar.xml, rs6000/powerpc-isa207-vsx32l.xml, and rs6000/powerpc-isa207-vsx64l.xml to srv_xmlfiles. * linux-ppc-tdesc-init.h (enum ppc_linux_tdesc) : New enum value. (init_registers_powerpc_isa207_vsx32l): Declare. (init_registers_powerpc_isa207_vsx64l): Declare. * linux-ppc-low.c (ppc_fill_tarregset): New function. (ppc_store_tarregset): New function. (ppc_regsets): Add entry for the TAR regset. (ppc_arch_setup): Set isa207 in features struct when needed. Set size for the TAR regsets. (ppc_get_ipa_tdesc_idx): Return PPC_TDESC_ISA207_VSX. (initialize_low_arch): Call init_registers_powerpc_isa207_vsx32l and init_registers_powerpc_isa207_vsx64l. * linux-ppc-ipa.c (get_ipa_tdesc): Handle PPC_TDESC_ISA207_VSX. (initialize_low_tracepoint): Call init_registers_powerpc_isa207_vsx32l and init_registers_powerpc_isa207_vsx64l. gdb/testsuite/ChangeLog: 2018-10-26 Pedro Franco de Carvalho * gdb.arch/powerpc-tar.c: New file. * gdb.arch/powerpc-tar.exp: New file. gdb/doc/ChangeLog: 2018-10-26 Pedro Franco de Carvalho * gdb.texinfo (PowerPC Features): Describe new feature "org.gnu.gdb.power.tar". --- gdb/arch/ppc-linux-common.c | 6 ++++-- gdb/arch/ppc-linux-common.h | 3 +++ gdb/arch/ppc-linux-tdesc.h | 2 ++ 3 files changed, 9 insertions(+), 2 deletions(-) (limited to 'gdb/arch') diff --git a/gdb/arch/ppc-linux-common.c b/gdb/arch/ppc-linux-common.c index 7cf08eb..b8a7cdb 100644 --- a/gdb/arch/ppc-linux-common.c +++ b/gdb/arch/ppc-linux-common.c @@ -53,7 +53,8 @@ ppc_linux_match_description (struct ppc_linux_features features) if (features.cell) tdesc = tdesc_powerpc_cell64l; else if (features.vsx) - tdesc = (features.ppr_dscr? tdesc_powerpc_isa205_ppr_dscr_vsx64l + tdesc = (features.isa207? tdesc_powerpc_isa207_vsx64l + : features.ppr_dscr? tdesc_powerpc_isa205_ppr_dscr_vsx64l : features.isa205? tdesc_powerpc_isa205_vsx64l : tdesc_powerpc_vsx64l); else if (features.altivec) @@ -70,7 +71,8 @@ ppc_linux_match_description (struct ppc_linux_features features) if (features.cell) tdesc = tdesc_powerpc_cell32l; else if (features.vsx) - tdesc = (features.ppr_dscr? tdesc_powerpc_isa205_ppr_dscr_vsx32l + tdesc = (features.isa207? tdesc_powerpc_isa207_vsx32l + : features.ppr_dscr? tdesc_powerpc_isa205_ppr_dscr_vsx32l : features.isa205? tdesc_powerpc_isa205_vsx32l : tdesc_powerpc_vsx32l); else if (features.altivec) diff --git a/gdb/arch/ppc-linux-common.h b/gdb/arch/ppc-linux-common.h index 666954e..f0e4a42 100644 --- a/gdb/arch/ppc-linux-common.h +++ b/gdb/arch/ppc-linux-common.h @@ -32,6 +32,7 @@ struct target_desc; #define PPC_LINUX_SIZEOF_VSXREGSET 256 #define PPC_LINUX_SIZEOF_PPRREGSET 8 #define PPC_LINUX_SIZEOF_DSCRREGSET 8 +#define PPC_LINUX_SIZEOF_TARREGSET 8 /* Check if the hwcap auxv entry indicates that isa205 is supported. */ bool ppc_linux_has_isa205 (CORE_ADDR hwcap); @@ -44,6 +45,7 @@ struct ppc_linux_features bool vsx; bool isa205; bool ppr_dscr; + bool isa207; bool cell; }; @@ -55,6 +57,7 @@ const struct ppc_linux_features ppc_linux_no_features = { false, false, false, + false, }; /* Return a target description that matches FEATURES. */ diff --git a/gdb/arch/ppc-linux-tdesc.h b/gdb/arch/ppc-linux-tdesc.h index 3b5a228..9962879 100644 --- a/gdb/arch/ppc-linux-tdesc.h +++ b/gdb/arch/ppc-linux-tdesc.h @@ -30,6 +30,7 @@ extern struct target_desc *tdesc_powerpc_isa205_32l; extern struct target_desc *tdesc_powerpc_isa205_altivec32l; extern struct target_desc *tdesc_powerpc_isa205_vsx32l; extern struct target_desc *tdesc_powerpc_isa205_ppr_dscr_vsx32l; +extern struct target_desc *tdesc_powerpc_isa207_vsx32l; extern struct target_desc *tdesc_powerpc_e500l; extern struct target_desc *tdesc_powerpc_64l; @@ -40,5 +41,6 @@ extern struct target_desc *tdesc_powerpc_isa205_64l; extern struct target_desc *tdesc_powerpc_isa205_altivec64l; extern struct target_desc *tdesc_powerpc_isa205_vsx64l; extern struct target_desc *tdesc_powerpc_isa205_ppr_dscr_vsx64l; +extern struct target_desc *tdesc_powerpc_isa207_vsx64l; #endif /* ARCH_PPC_LINUX_TDESC_H */ -- cgit v1.1