Help regarding contributing to RTEMS
Hello !! My name is Sri Vathsa. I am sophomore at IIT Roorkee, India, pursuing my B.Tech in Electronics and Communication. I am new to open source and would like to contribute to RTEMS . I have been using python for the last couple of years and C for the past few months. Can anyone help me out with where I can start for contributing and any other prerequisites you think are necessary ? Thanks ! Regards, Sri Vathsa ___ devel mailing list devel@rtems.org http://lists.rtems.org/mailman/listinfo/devel
[PATCH 1/3] Provide for glibc compatibility
Update #2803. --- cpukit/Makefile.am | 1 + cpukit/include/endian.h | 1 + cpukit/preinstall.am| 4 3 files changed, 6 insertions(+) create mode 100644 cpukit/include/endian.h diff --git a/cpukit/Makefile.am b/cpukit/Makefile.am index 9a3a696..cb46f20 100644 --- a/cpukit/Makefile.am +++ b/cpukit/Makefile.am @@ -36,6 +36,7 @@ preinstall-stamp: CLEANFILES = preinstall-stamp include_HEADERS = +include_HEADERS += include/endian.h include_rtemsdir = $(includedir)/rtems include_rtems_HEADERS = diff --git a/cpukit/include/endian.h b/cpukit/include/endian.h new file mode 100644 index 000..65e2930 --- /dev/null +++ b/cpukit/include/endian.h @@ -0,0 +1 @@ +#include diff --git a/cpukit/preinstall.am b/cpukit/preinstall.am index 030f00d..a6a5879 100644 --- a/cpukit/preinstall.am +++ b/cpukit/preinstall.am @@ -18,6 +18,10 @@ $(PROJECT_INCLUDE)/$(dirstamp): @: > $(PROJECT_INCLUDE)/$(dirstamp) PREINSTALL_DIRS += $(PROJECT_INCLUDE)/$(dirstamp) +$(PROJECT_INCLUDE)/endian.h: include/endian.h $(PROJECT_INCLUDE)/$(dirstamp) + $(INSTALL_DATA) $< $(PROJECT_INCLUDE)/endian.h +PREINSTALL_FILES += $(PROJECT_INCLUDE)/endian.h + $(PROJECT_INCLUDE)/rtems/$(dirstamp): @$(MKDIR_P) $(PROJECT_INCLUDE)/rtems @: > $(PROJECT_INCLUDE)/rtems/$(dirstamp) -- 1.8.4.5 ___ devel mailing list devel@rtems.org http://lists.rtems.org/mailman/listinfo/devel
[PATCH 3/3] Remove CPU_BIG_ENDIAN and CPU_LITTLE_ENDIAN
Use de-facto standard BYTE_ORDER instead.
Close #2803.
---
cpukit/score/cpu/arm/rtems/score/cpu.h | 10
cpukit/score/cpu/bfin/rtems/score/cpu.h | 40 -
cpukit/score/cpu/epiphany/rtems/score/cpu.h | 2 --
cpukit/score/cpu/i386/rtems/score/cpu.h | 8 --
cpukit/score/cpu/lm32/rtems/score/cpu.h | 40 -
cpukit/score/cpu/m32c/rtems/score/cpu.h | 40 -
cpukit/score/cpu/m68k/rtems/score/cpu.h | 8 --
cpukit/score/cpu/mips/rtems/score/cpu.h | 16
cpukit/score/cpu/moxie/rtems/score/cpu.h| 7 -
cpukit/score/cpu/nios2/rtems/score/cpu.h| 4 ---
cpukit/score/cpu/no_cpu/rtems/score/cpu.h | 40 -
cpukit/score/cpu/or1k/rtems/score/cpu.h | 2 --
cpukit/score/cpu/powerpc/rtems/score/cpu.h | 13 --
cpukit/score/cpu/sh/rtems/score/cpu.h | 16
cpukit/score/cpu/sparc/rtems/score/cpu.h| 16
cpukit/score/cpu/sparc64/rtems/score/cpu.h | 8 --
cpukit/score/cpu/v850/rtems/score/cpu.h | 40 -
17 files changed, 310 deletions(-)
diff --git a/cpukit/score/cpu/arm/rtems/score/cpu.h
b/cpukit/score/cpu/arm/rtems/score/cpu.h
index 0a9ca26..cdffc9c 100644
--- a/cpukit/score/cpu/arm/rtems/score/cpu.h
+++ b/cpukit/score/cpu/arm/rtems/score/cpu.h
@@ -97,16 +97,6 @@
*/
/**@{**/
-#if defined(__ARMEL__)
- #define CPU_BIG_ENDIAN FALSE
- #define CPU_LITTLE_ENDIAN TRUE
-#elif defined(__ARMEB__)
- #define CPU_BIG_ENDIAN TRUE
- #define CPU_LITTLE_ENDIAN FALSE
-#else
- #error "unknown endianness"
-#endif
-
/*
* The ARM uses the PIC interrupt model.
*/
diff --git a/cpukit/score/cpu/bfin/rtems/score/cpu.h
b/cpukit/score/cpu/bfin/rtems/score/cpu.h
index 9b54d6c..cdefedf 100644
--- a/cpukit/score/cpu/bfin/rtems/score/cpu.h
+++ b/cpukit/score/cpu/bfin/rtems/score/cpu.h
@@ -280,46 +280,6 @@ extern "C" {
#define CPU_STRUCTURE_ALIGNMENT
/**
- * @defgroup CPUEndian Processor Dependent Endianness Support
- *
- * This group assists in issues related to processor endianness.
- *
- */
-/**@{**/
-
-/**
- * Define what is required to specify how the network to host conversion
- * routines are handled.
- *
- * @note @a CPU_BIG_ENDIAN and @a CPU_LITTLE_ENDIAN should NOT have the
- * same values.
- *
- * @see CPU_LITTLE_ENDIAN
- *
- * Port Specific Information:
- *
- * XXX document implementation including references if appropriate
- */
-#define CPU_BIG_ENDIAN FALSE
-
-/**
- * Define what is required to specify how the network to host conversion
- * routines are handled.
- *
- * @note @ref CPU_BIG_ENDIAN and @ref CPU_LITTLE_ENDIAN should NOT have the
- * same values.
- *
- * @see CPU_BIG_ENDIAN
- *
- * Port Specific Information:
- *
- * XXX document implementation including references if appropriate
- */
-#define CPU_LITTLE_ENDIANTRUE
-
-/** @} */
-
-/**
* @ingroup CPUInterrupt
* The following defines the number of bits actually used in the
* interrupt field of the task mode. How those bits map to the
diff --git a/cpukit/score/cpu/epiphany/rtems/score/cpu.h
b/cpukit/score/cpu/epiphany/rtems/score/cpu.h
index 4319203..55faefa 100644
--- a/cpukit/score/cpu/epiphany/rtems/score/cpu.h
+++ b/cpukit/score/cpu/epiphany/rtems/score/cpu.h
@@ -261,8 +261,6 @@ extern "C" {
*/
#define CPU_HAS_OWN_HOST_TO_NETWORK_ROUTINES FALSE
-#define CPU_BIG_ENDIAN FALSE
-#define CPU_LITTLE_ENDIANTRUE
/*
* The following defines the number of bits actually used in the
diff --git a/cpukit/score/cpu/i386/rtems/score/cpu.h
b/cpukit/score/cpu/i386/rtems/score/cpu.h
index c45d914..052e53f 100644
--- a/cpukit/score/cpu/i386/rtems/score/cpu.h
+++ b/cpukit/score/cpu/i386/rtems/score/cpu.h
@@ -114,14 +114,6 @@ extern "C" {
#define CPU_PROVIDES_IDLE_THREAD_BODYFALSE
-/*
- * Define what is required to specify how the network to host conversion
- * routines are handled.
- */
-
-#define CPU_BIG_ENDIAN FALSE
-#define CPU_LITTLE_ENDIANTRUE
-
#define CPU_MAXIMUM_PROCESSORS 32
#define I386_CONTEXT_CONTROL_EFLAGS_OFFSET 0
diff --git a/cpukit/score/cpu/lm32/rtems/score/cpu.h
b/cpukit/score/cpu/lm32/rtems/score/cpu.h
index e6f6c51..87cfd9e 100644
--- a/cpukit/score/cpu/lm32/rtems/score/cpu.h
+++ b/cpukit/score/cpu/lm32/rtems/score/cpu.h
@@ -274,46 +274,6 @@ extern "C" {
#define CPU_STRUCTURE_ALIGNMENT RTEMS_ALIGNED( CPU_CACHE_LINE_BYTES )
/**
- * @defgroup CPUEndian Processor Dependent Endianness Support
- *
- * This group assists in issues related to processor endianness.
- *
- */
-/**@{**/
-
-/**
- * Define what is required to specify how the network to host conversion
- * routines are handled.
- *
- * NOTE: @a CPU_BIG_ENDIAN and @a CPU_LITTLE_ENDIAN should NOT have the
- * same values.
- *
- * @see CPU_LITTLE_ENDIAN
- *
- * Port
[PATCH 2/3] Use
Update #2803.
---
c/src/libchip/ide/ata_internal.h | 16 +---
cpukit/libblock/include/rtems/ide_part_table.h | 18 +-
cpukit/libfs/src/dosfs/fat.h | 18 +-
cpukit/libmisc/shell/main_pci.c| 4 ++--
4 files changed, 17 insertions(+), 39 deletions(-)
diff --git a/c/src/libchip/ide/ata_internal.h b/c/src/libchip/ide/ata_internal.h
index 887199d..985b6f5 100644
--- a/c/src/libchip/ide/ata_internal.h
+++ b/c/src/libchip/ide/ata_internal.h
@@ -16,6 +16,7 @@
#define __ATA_INTERNAL_H__
#include
+#include
#include
#include
#include
@@ -34,17 +35,10 @@ extern "C" {
* Naming: Ca_b_c, where a: F = from, T = to, b: LE = little-endian,
* BE = big-endian, c: W = word (16 bits), L = longword (32 bits)
*/
-#if (CPU_BIG_ENDIAN == TRUE)
-#define CF_LE_W(v) CPU_swap_u16(v)
-#define CF_LE_L(v) CPU_swap_u32(v)
-#define CT_LE_W(v) CPU_swap_u16(v)
-#define CT_LE_L(v) CPU_swap_u32(v)
-#else
-#define CF_LE_W(v) (v)
-#define CF_LE_L(v) (v)
-#define CT_LE_W(v) (v)
-#define CT_LE_L(v) (v)
-#endif
+#define CF_LE_W(v) le16toh(v)
+#define CF_LE_L(v) le32toh(v)
+#define CT_LE_W(v) htole16(v)
+#define CT_LE_L(v) htole32(v)
#define ATA_UNDEFINED_VALUE (-1)
diff --git a/cpukit/libblock/include/rtems/ide_part_table.h
b/cpukit/libblock/include/rtems/ide_part_table.h
index c638e28..316ff61 100644
--- a/cpukit/libblock/include/rtems/ide_part_table.h
+++ b/cpukit/libblock/include/rtems/ide_part_table.h
@@ -26,6 +26,7 @@
#include
#include
#include
+#include
#include
#include
#include
@@ -57,19 +58,10 @@
/*
* Conversion from and to little-endian byte order. (no-op on i386/i486)
*/
-
-#if (CPU_BIG_ENDIAN == TRUE)
-# define LE_TO_CPU_U16(v) CPU_swap_u16(v)
-# define LE_TO_CPU_U32(v) CPU_swap_u32(v)
-# define CPU_TO_LE_U16(v) CPU_swap_u16(v)
-# define CPU_TO_LE_U32(v) CPU_swap_u32(v)
-#else
-# define LE_TO_CPU_U16(v) (v)
-# define LE_TO_CPU_U32(v) (v)
-# define CPU_TO_LE_U16(v) (v)
-# define CPU_TO_LE_U32(v) (v)
-#endif
-
+#define CF_LE_W(v) le16toh(v)
+#define CF_LE_L(v) le32toh(v)
+#define CT_LE_W(v) htole16(v)
+#define CT_LE_L(v) htole32(v)
/*
* sector_data_t --
diff --git a/cpukit/libfs/src/dosfs/fat.h b/cpukit/libfs/src/dosfs/fat.h
index 6b86679..8fcd17f 100644
--- a/cpukit/libfs/src/dosfs/fat.h
+++ b/cpukit/libfs/src/dosfs/fat.h
@@ -23,11 +23,11 @@
#define __DOSFS_FAT_H__
#include
+#include
#include
#include
-#include
#include
#include
@@ -56,18 +56,10 @@ extern "C" {
* Naming: Ca_b_c, where a: F = from, T = to, b: LE = little-endian,
* BE = big-endian, c: W = word (16 bits), L = longword (32 bits)
*/
-
-#if (CPU_BIG_ENDIAN == TRUE)
-#define CF_LE_W(v) CPU_swap_u16((uint16_t)(v))
-#define CF_LE_L(v) CPU_swap_u32((uint32_t)(v))
-#define CT_LE_W(v) CPU_swap_u16((uint16_t)(v))
-#define CT_LE_L(v) CPU_swap_u32((uint32_t)(v))
-#else
-#define CF_LE_W(v) (v)
-#define CF_LE_L(v) (v)
-#define CT_LE_W(v) (v)
-#define CT_LE_L(v) (v)
-#endif
+#define CF_LE_W(v) le16toh(v)
+#define CF_LE_L(v) le32toh(v)
+#define CT_LE_W(v) htole16(v)
+#define CT_LE_L(v) htole32(v)
#define FAT_HASH_SIZE 2
#define FAT_HASH_MODULE FAT_HASH_SIZE
diff --git a/cpukit/libmisc/shell/main_pci.c b/cpukit/libmisc/shell/main_pci.c
index c1d9535..a71b3fd 100644
--- a/cpukit/libmisc/shell/main_pci.c
+++ b/cpukit/libmisc/shell/main_pci.c
@@ -19,7 +19,7 @@
#include
#include
#include
-#include
+#include
#include /* For PCI endianness config */
#include
@@ -416,7 +416,7 @@ static int pci_summary(void)
printf(" CFG LIBRARY: %s\n", cfglib_strs[pci_config_lib_type]);
printf(" NO. PCI BUSES: %d buses\n", pci_bus_count());
printf(" PCI ENDIAN:%s\n", pci_endian ? "Big" : "Little");
-#if (CPU_LITTLE_ENDIAN == TRUE)
+#if BYTE_ORDER == LITTLE_ENDIAN
puts(" MACHINE ENDIAN:Little");
#else
puts(" MACHINE ENDIAN:Big");
--
1.8.4.5
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