OpenE2K/gcc
2
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

backport: re PR target/61976 (aix64: Data corruption in struct passed by value)

Browse Source 
Backport from mainline
        2019-04-11  David Edelsohn  <dje.gcc@gmail.com>
        * xcoffout.h (xcoff_private_rodata_section_name): Declare.
        * xcoffout.c (xcoff_private_rodata_section_name): Define.
        * config/rs6000/rs6000.c (rs6000_xcoff_asm_init_sections): Create
        read_only_private_data_section using coff_private_rodata_section_name.
        (rs6000_xcoff_file_start): Generate coff_private_rodata_section_name.

        2018-12-04  David Edelsohn  <dje.gcc@gmail.com>
        2018-12-13  David Edelsohn  <dje.gcc@gmail.com>
        PR target/61976
        * config/rs6000/rs6000.c (rs6000_function_arg): Don't pass aggregates
        in FPRs on AIX. Ensure type is non-NULL.
        (rs6000_arg_partial_bytes): Same.

From-SVN: r271257
This commit is contained in:
David Edelsohn 2019-05-15 17:11:31 +00:00 committed by David Edelsohn
parent adff581212
commit 908c3c73b6
4 changed files with 31 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
gcc/ChangeLog
View File

@ -1,3 +1,20 @@
2019-05-15 David Edelsohn <dje.gcc@gmail.com>
Backport from mainline
2019-04-11 David Edelsohn <dje.gcc@gmail.com>
* xcoffout.h (xcoff_private_rodata_section_name): Declare.
* xcoffout.c (xcoff_private_rodata_section_name): Define.
* config/rs6000/rs6000.c (rs6000_xcoff_asm_init_sections): Create
read_only_private_data_section using coff_private_rodata_section_name.
(rs6000_xcoff_file_start): Generate coff_private_rodata_section_name.
2018-12-04 David Edelsohn <dje.gcc@gmail.com>
2018-12-13 David Edelsohn <dje.gcc@gmail.com>
PR target/61976
* config/rs6000/rs6000.c (rs6000_function_arg): Don't pass aggregates
in FPRs on AIX. Ensure type is non-NULL.
(rs6000_arg_partial_bytes): Same.
2019-05-15 Sebastian Huber <sebastian.huber@embedded-brains.de>
* config/arm/t-rtems: Replace -march=armv7-m multilibs with

18
gcc/config/rs6000/rs6000.c
View File

@ -13144,7 +13144,9 @@ rs6000_function_arg (cumulative_args_t cum_v, machine_mode mode,
if (elt_mode == TDmode && (cum->fregno % 2) == 1)
cum->fregno++;
if (USE_FP_FOR_ARG_P (cum, elt_mode))
if (USE_FP_FOR_ARG_P (cum, elt_mode)
&& !(TARGET_AIX && !TARGET_ELF
&& type != NULL && AGGREGATE_TYPE_P (type)))
{
rtx rvec[GP_ARG_NUM_REG + AGGR_ARG_NUM_REG + 1];
rtx r, off;
@ -13280,7 +13282,9 @@ rs6000_arg_partial_bytes (cumulative_args_t cum_v, machine_mode mode,
align_words = rs6000_parm_start (mode, type, cum->words);
if (USE_FP_FOR_ARG_P (cum, elt_mode))
if (USE_FP_FOR_ARG_P (cum, elt_mode)
&& !(TARGET_AIX && !TARGET_ELF
&& type != NULL && AGGREGATE_TYPE_P (type)))
{
unsigned long n_fpreg = (GET_MODE_SIZE (elt_mode) + 7) >> 3;
@ -36465,6 +36469,10 @@ rs6000_xcoff_asm_init_sections (void)
rs6000_xcoff_output_readwrite_section_asm_op,
&xcoff_private_data_section_name);
read_only_private_data_section
= get_unnamed_section (0, rs6000_xcoff_output_readonly_section_asm_op,
&xcoff_private_rodata_section_name);
tls_data_section
= get_unnamed_section (SECTION_TLS,
rs6000_xcoff_output_tls_section_asm_op,
@ -36475,10 +36483,6 @@ rs6000_xcoff_asm_init_sections (void)
rs6000_xcoff_output_tls_section_asm_op,
&xcoff_private_data_section_name);
read_only_private_data_section
= get_unnamed_section (0, rs6000_xcoff_output_readonly_section_asm_op,
&xcoff_private_data_section_name);
toc_section
= get_unnamed_section (0, rs6000_xcoff_output_toc_section_asm_op, NULL);
@ -36659,6 +36663,8 @@ rs6000_xcoff_file_start (void)
main_input_filename, ".bss_");
rs6000_gen_section_name (&xcoff_private_data_section_name,
main_input_filename, ".rw_");
rs6000_gen_section_name (&xcoff_private_rodata_section_name,
main_input_filename, ".rop_");
rs6000_gen_section_name (&xcoff_read_only_section_name,
main_input_filename, ".ro_");
rs6000_gen_section_name (&xcoff_tls_data_section_name,

1
gcc/xcoffout.c
View File

@ -63,6 +63,7 @@ static const char *xcoff_current_function_file;
char *xcoff_bss_section_name;
char *xcoff_private_data_section_name;
char *xcoff_private_rodata_section_name;
char *xcoff_tls_data_section_name;
char *xcoff_tbss_section_name;
char *xcoff_read_only_section_name;

1
gcc/xcoffout.h
View File

@ -127,6 +127,7 @@ extern const char *xcoff_current_include_file;
extern char *xcoff_bss_section_name;
extern char *xcoff_private_data_section_name;
extern char *xcoff_private_rodata_section_name;
extern char *xcoff_tls_data_section_name;
extern char *xcoff_tbss_section_name;
extern char *xcoff_read_only_section_name;