+2016-06-16 Senthil Kumar Selvaraj <senthil_kumar.selvaraj@atmel.com>
+
+ * config/avr/avr.c (avr_asm_init_sections): Remove setup of
+ progmem_swtable_section.
+ (progmem_swtable_section): Remove.
+ (avr_asm_function_rodata_section): Remove.
+ (TARGET_ASM_FUNCTION_RODATA_SECTION): Remove.
+ * config/avr/avr.h (JUMP_TABLES_IN_TEXT_SECTION: Define to 1.
+
2016-06-16 Jocelyn Mayer <l_indien@magic.fr>
* config/i386/driver-i386.c (host_detect_local_cpu): Set
/* Current architecture. */
const avr_arch_t *avr_arch;
-/* Section to put switch tables in. */
-static GTY(()) section *progmem_swtable_section;
-
/* Unnamed sections associated to __attribute__((progmem)) aka. PROGMEM
or to address space __flash* or __memx. Only used as singletons inside
avr_asm_select_section, but it must not be local there because of GTY. */
static void
avr_asm_init_sections (void)
{
- /* Set up a section for jump tables. Alignment is handled by
- ASM_OUTPUT_BEFORE_CASE_LABEL. */
-
- if (AVR_HAVE_JMP_CALL)
- {
- progmem_swtable_section
- = get_unnamed_section (0, output_section_asm_op,
- "\t.section\t.progmem.gcc_sw_table"
- ",\"a\",@progbits");
- }
- else
- {
- progmem_swtable_section
- = get_unnamed_section (SECTION_CODE, output_section_asm_op,
- "\t.section\t.progmem.gcc_sw_table"
- ",\"ax\",@progbits");
- }
-
/* Override section callbacks to keep track of `avr_need_clear_bss_p'
resp. `avr_need_copy_data_p'. */
}
-/* Implement `TARGET_ASM_FUNCTION_RODATA_SECTION'. */
-
-static section*
-avr_asm_function_rodata_section (tree decl)
-{
- /* If a function is unused and optimized out by -ffunction-sections
- and --gc-sections, ensure that the same will happen for its jump
- tables by putting them into individual sections. */
-
- unsigned int flags;
- section * frodata;
-
- /* Get the frodata section from the default function in varasm.c
- but treat function-associated data-like jump tables as code
- rather than as user defined data. AVR has no constant pools. */
- {
- int fdata = flag_data_sections;
-
- flag_data_sections = flag_function_sections;
- frodata = default_function_rodata_section (decl);
- flag_data_sections = fdata;
- flags = frodata->common.flags;
- }
-
- if (frodata != readonly_data_section
- && flags & SECTION_NAMED)
- {
- /* Adjust section flags and replace section name prefix. */
-
- unsigned int i;
-
- static const char* const prefix[] =
- {
- ".rodata", ".progmem.gcc_sw_table",
- ".gnu.linkonce.r.", ".gnu.linkonce.t."
- };
-
- for (i = 0; i < sizeof (prefix) / sizeof (*prefix); i += 2)
- {
- const char * old_prefix = prefix[i];
- const char * new_prefix = prefix[i+1];
- const char * name = frodata->named.name;
-
- if (STR_PREFIX_P (name, old_prefix))
- {
- const char *rname = ACONCAT ((new_prefix,
- name + strlen (old_prefix), NULL));
- flags &= ~SECTION_CODE;
- flags |= AVR_HAVE_JMP_CALL ? 0 : SECTION_CODE;
-
- return get_section (rname, flags, frodata->named.decl);
- }
- }
- }
-
- return progmem_swtable_section;
-}
-
-
/* Implement `TARGET_ASM_NAMED_SECTION'. */
/* Track need of __do_clear_bss, __do_copy_data for named sections. */
#undef TARGET_FOLD_BUILTIN
#define TARGET_FOLD_BUILTIN avr_fold_builtin
-#undef TARGET_ASM_FUNCTION_RODATA_SECTION
-#define TARGET_ASM_FUNCTION_RODATA_SECTION avr_asm_function_rodata_section
-
#undef TARGET_SCALAR_MODE_SUPPORTED_P
#define TARGET_SCALAR_MODE_SUPPORTED_P avr_scalar_mode_supported_p
#define SUPPORTS_INIT_PRIORITY 0
-#define JUMP_TABLES_IN_TEXT_SECTION 0
+#define JUMP_TABLES_IN_TEXT_SECTION 1
#define ASM_COMMENT_START " ; "
+2016-06-16 Senthil Kumar Selvaraj <senthil_kumar.selvaraj@atmel.com>
+
+ * gcc.target/avr/pr71151-1.c: New test.
+ * gcc.target/avr/pr71151-2.c: New test.
+ * gcc.target/avr/pr71151-3.c: New test.
+ * gcc.target/avr/pr71151-4.c: New test.
+ * gcc.target/avr/pr71151-5.c: New test.
+ * gcc.target/avr/pr71151-6.c: New test.
+ * gcc.target/avr/pr71151-7.c: New test.
+ * gcc.target/avr/pr71151-8.c: New test.
+ * gcc.target/avr/pr71151-common.h: New test.
+
2016-06-16 Martin Liska <mliska@suse.cz>
* gfortran.dg/predict-1.f90: New test.
--- /dev/null
+/* { dg-do compile } */
+/* { dg-options "-Os -ffunction-sections -fdata-sections" } */
+
+/* { dg-final { scan-assembler-not ".section .progmem.gcc_sw_table.foo.str1.1" } } */
+/* { dg-final { scan-assembler ".section .rodata.foo.str1.1,\"aMS\"" } } */
+
+
+extern void bar(const char*);
+void foo(void)
+{
+ bar("BBBBBBBBBB");
+}
--- /dev/null
+/* { dg-do run } */
+/* { dg-options "-Os -fno-tree-switch-conversion -ffunction-sections -fdata-sections" } */
+
+/* Make sure jumptables work properly if placed below 64 KB i.e. 2 byte
+ flash address for loading jump table entry, 2 byte entry, after
+ removing the special section placement hook. */
+
+#include "exit-abort.h"
+#include "pr71151-common.h"
+
+int main()
+{
+ foo(5);
+ if (y != 37)
+ abort();
+
+ foo(0);
+ if (y != 67)
+ abort();
+
+ foo(7);
+ if (y != 98)
+ abort();
+}
--- /dev/null
+/* { dg-do run } */
+/* { dg-options "-Os -fno-tree-switch-conversion -ffunction-sections -mno-relax -fdata-sections -Wl,--section-start=.foo=0x10000" } */
+
+/* Make sure jumptables work properly if placed above 64 KB and below 128 KB,
+ i.e. 3 byte flash address for loading jump table entry and 2 byte jump table
+ entry, with relaxation disabled, after removing the special section
+ placement hook. */
+
+#include "exit-abort.h"
+#include "pr71151-common.h"
+
+int main()
+{
+ foo(5);
+ if (y != 37)
+ abort();
+
+ foo(0);
+ if (y != 67)
+ abort();
+
+ foo(7);
+ if (y != 98)
+ abort();
+}
--- /dev/null
+/* { dg-do run } */
+/* { dg-options "-Os -fno-tree-switch-conversion -ffunction-sections -fdata-sections -mrelax -Wl,--section-start=.foo=0x10000" } */
+
+/* Make sure jumptables work properly if placed above 64 KB and below 128 KB,
+ i.e. 3 byte flash address for loading jump table entry and 2 byte jump
+ table entry, with relaxation enabled, after removing the special section
+ placement hook. */
+
+#include "exit-abort.h"
+#include "pr71151-common.h"
+
+int main()
+{
+ foo(5);
+ if (y != 37)
+ abort();
+
+ foo(0);
+ if (y != 67)
+ abort();
+
+ foo(7);
+ if (y != 98)
+ abort();
+}
--- /dev/null
+/* { dg-do run } */
+/* { dg-options "-Os -fno-tree-switch-conversion -ffunction-sections -fdata-sections -mno-relax -Wl,--section-start=.foo=0x20000" } */
+
+/* Make sure jumptables work properly if placed above 128 KB, i.e. 3 byte
+ flash address for loading jump table entry and a jump table entry
+ that is a stub, with relaxation disabled, after removing the special
+ section placement hook. */
+
+#include "exit-abort.h"
+#include "pr71151-common.h"
+
+int main()
+{
+ /* Not meant for devices with flash <= 128K */
+#if defined (__AVR_2_BYTE_PC__)
+ exit(0);
+#else
+ foo(5);
+ if (y != 37)
+ abort();
+
+ foo(0);
+ if (y != 67)
+ abort();
+
+ foo(7);
+ if (y != 98)
+ abort();
+#endif
+}
--- /dev/null
+/* { dg-do run } */
+/* { dg-options "-Os -fno-tree-switch-conversion -ffunction-sections -fdata-sections -mrelax -Wl,--section-start=.foo=0x20000" } */
+
+/* Make sure jumptables work properly if placed above 128 KB, i.e. 3 byte
+ flash address for loading jump table entry and a jump table entry
+ that is a stub, with relaxation enabled, after removing the special
+ section placement hook. */
+
+#include "exit-abort.h"
+#include "pr71151-common.h"
+
+int main()
+{
+ /* Not meant for devices with flash <= 128K */
+#if defined (__AVR_2_BYTE_PC__)
+ exit(0);
+#else
+ foo(5);
+ if (y != 37)
+ abort();
+
+ foo(0);
+ if (y != 67)
+ abort();
+
+ foo(7);
+ if (y != 98)
+ abort();
+#endif
+}
--- /dev/null
+/* { dg-do run } */
+/* { dg-options "-Os -fno-tree-switch-conversion -ffunction-sections -fdata-sections -mno-relax -Wl,--section-start=.foo=0x1fffa" } */
+
+/* Make sure jumptables work properly if placed straddling 128 KB i.e
+ some entries below 128 KB and some above it, with relaxation disabled. */
+
+#include "exit-abort.h"
+#include "pr71151-common.h"
+
+int main()
+{
+ /* Not meant for devices with flash <= 128K */
+#if defined (__AVR_2_BYTE_PC__)
+ exit(0);
+#else
+ foo(5);
+ if (y != 37)
+ abort();
+
+ foo(0);
+ if (y != 67)
+ abort();
+
+ foo(7);
+ if (y != 98)
+ abort();
+#endif
+}
--- /dev/null
+/* { dg-do run } */
+/* { dg-options "-Os -fno-tree-switch-conversion -ffunction-sections -fdata-sections -mrelax -Wl,--section-start=.foo=0x1fffa" } */
+
+/* Make sure jumptables work properly if placed straddling 128 KB i.e
+ some entries below 128 KB and some above it, with relaxation disabled. */
+
+#include "exit-abort.h"
+#include "pr71151-common.h"
+
+int main()
+{
+ /* Not meant for devices with flash <= 128K */
+#if defined (__AVR_2_BYTE_PC__)
+ exit(0);
+#else
+ foo(5);
+ if (y != 37)
+ abort();
+
+ foo(0);
+ if (y != 67)
+ abort();
+
+ foo(7);
+ if (y != 98)
+ abort();
+#endif
+}
--- /dev/null
+volatile char y;
+volatile char g;
+
+__attribute__((section(".foo")))
+void foo(char x)
+{
+ switch (x)
+ {
+ case 0:
+ y = 67; break;
+ case 1:
+ y = 20; break;
+ case 2:
+ y = 109; break;
+ case 3:
+ y = 33; break;
+ case 4:
+ y = 44; break;
+ case 5:
+ y = 37; break;
+ case 6:
+ y = 10; break;
+ case 7:
+ y = 98; break;
+ }
+ y = y + g;
+}
projects / gcc.git / commitdiff