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Posted to commits@nuttx.apache.org by GitBox <gi...@apache.org> on 2022/02/13 23:29:46 UTC

[GitHub] [incubator-nuttx] masayuki2009 opened a new pull request #5485: boards: sabre-6quad: Add -fno-common to Make.defs

masayuki2009 opened a new pull request #5485:
URL: https://github.com/apache/incubator-nuttx/pull/5485


   ## Summary
   
   - I noticed that the following error happened when loading the init
     'elf_symvalue: SHN_COMMON: Re-compile with -fno-common'
   - This commit fixes this issue
   
   ## Impact
   
   - sabre-6quad only
   
   ## Testing
   
   - Tested with sabre-6quad:netknsh (not merged yet)
   


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[GitHub] [incubator-nuttx] xiaoxiang781216 edited a comment on pull request #5485: boards: sabre-6quad: Add -fno-common to Make.defs

Posted by GitBox <gi...@apache.org>.
xiaoxiang781216 edited a comment on pull request #5485:
URL: https://github.com/apache/incubator-nuttx/pull/5485#issuecomment-1039826690


   Yes, I think the direction is right. -fno-common should be added to all source code(elf binary and core os) who want to use elf related feature.
   Since elf is a common feature, I would suggest to add -fno-common in ARCHCFLAGS for all board files(except we hit the error similar to esp32c3-devkit:wapi. Otherwise, people will hit the similar issue again and again.
   BTW, -fno-common encourage the good practice, I don't see there is any negative side effect to enable it(except compatible with some prebuilt library).


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[GitHub] [incubator-nuttx] masayuki2009 commented on a change in pull request #5485: boards: sabre-6quad: Add -fno-common to Make.defs

Posted by GitBox <gi...@apache.org>.
masayuki2009 commented on a change in pull request #5485:
URL: https://github.com/apache/incubator-nuttx/pull/5485#discussion_r806327482



##########
File path: arch/arm/src/rtl8720c/Toolchain.defs
##########
@@ -50,8 +50,8 @@ ifneq ($(CONFIG_ARMV8M_STACKCHECK),y)
 endif
 endif
 
-ARCHCFLAGS = -fno-builtin -march=armv8-m.main+dsp -mthumb -mfloat-abi=soft -D__thumb2__ -g -gdwarf-3 -Os  -fno-tree-scev-cprop
-ARCHCXXFLAGS = -fno-builtin -nostdinc++ -std=c++11
+ARCHCFLAGS = -fno-builtin -march=armv8-m.main+dsp -mthumb -mfloat-abi=soft -D__thumb2__ -g -gdwarf-3 -Os  -fno-tree-scev-cprop -fno-common

Review comment:
       @pkarashchenko 
   Do you mean that `-fno-common` should be moved to `ARCHOPTIMIZATION`
   or `-ffunction-sections -fdata-sections` should be moved to `ARCHCFLAGS/ARCHCXXFLAGS` ?
   
   




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[GitHub] [incubator-nuttx] xiaoxiang781216 commented on pull request #5485: boards: sabre-6quad: Add -fno-common to Make.defs

Posted by GitBox <gi...@apache.org>.
xiaoxiang781216 commented on pull request #5485:
URL: https://github.com/apache/incubator-nuttx/pull/5485#issuecomment-1039828003


   How about we:
   
   1.  replace "ARCHC[XX]FLAGS =" with "ARCHC[XX]FLAGS = -fno-common" and revert the change which hit the  multiple definition link error.
   2. Remove -fno-common from CELFFLAGS/CXXELFFLAGS
   


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[GitHub] [incubator-nuttx] Ouss4 commented on pull request #5485: boards: sabre-6quad: Add -fno-common to Make.defs

Posted by GitBox <gi...@apache.org>.
Ouss4 commented on pull request #5485:
URL: https://github.com/apache/incubator-nuttx/pull/5485#issuecomment-1039114845


   There is this in the documentation:
   > The default is -fno-common, which specifies that the compiler places uninitialized global variables in the BSS section of the object file. This inhibits the merging of tentative definitions by the linker so you get a multiple-definition error if the same variable is accidentally defined in more than one compilation unit.
   
   I don't know if the libraries are built with `-fcommon`.


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[GitHub] [incubator-nuttx] pkarashchenko commented on a change in pull request #5485: boards: sabre-6quad: Add -fno-common to Make.defs

Posted by GitBox <gi...@apache.org>.
pkarashchenko commented on a change in pull request #5485:
URL: https://github.com/apache/incubator-nuttx/pull/5485#discussion_r806368451



##########
File path: arch/arm/src/rtl8720c/Toolchain.defs
##########
@@ -50,8 +50,8 @@ ifneq ($(CONFIG_ARMV8M_STACKCHECK),y)
 endif
 endif
 
-ARCHCFLAGS = -fno-builtin -march=armv8-m.main+dsp -mthumb -mfloat-abi=soft -D__thumb2__ -g -gdwarf-3 -Os  -fno-tree-scev-cprop
-ARCHCXXFLAGS = -fno-builtin -nostdinc++ -std=c++11
+ARCHCFLAGS = -fno-builtin -march=armv8-m.main+dsp -mthumb -mfloat-abi=soft -D__thumb2__ -g -gdwarf-3 -Os  -fno-tree-scev-cprop -fno-common

Review comment:
       This is a point for discussion, but I think we should move `-fno-common` to `ARCHOPTIMIZATION`.




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[GitHub] [incubator-nuttx] masayuki2009 commented on pull request #5485: boards: sabre-6quad: Add -fno-common to Make.defs

Posted by GitBox <gi...@apache.org>.
masayuki2009 commented on pull request #5485:
URL: https://github.com/apache/incubator-nuttx/pull/5485#issuecomment-1039673417






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[GitHub] [incubator-nuttx] masayuki2009 commented on pull request #5485: boards: sabre-6quad: Add -fno-common to Make.defs

Posted by GitBox <gi...@apache.org>.
masayuki2009 commented on pull request #5485:
URL: https://github.com/apache/incubator-nuttx/pull/5485#issuecomment-1039850524


   @xiaoxiang781216 
   I pushed all the changes again.
   


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[GitHub] [incubator-nuttx] xiaoxiang781216 merged pull request #5485: boards: sabre-6quad: Add -fno-common to Make.defs

Posted by GitBox <gi...@apache.org>.
xiaoxiang781216 merged pull request #5485:
URL: https://github.com/apache/incubator-nuttx/pull/5485


   


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[GitHub] [incubator-nuttx] masayuki2009 commented on a change in pull request #5485: boards: sabre-6quad: Add -fno-common to Make.defs

Posted by GitBox <gi...@apache.org>.
masayuki2009 commented on a change in pull request #5485:
URL: https://github.com/apache/incubator-nuttx/pull/5485#discussion_r805479196



##########
File path: boards/arm/imx6/sabre-6quad/scripts/Make.defs
##########
@@ -45,6 +45,9 @@ ARCHWARNINGS = -Wall -Wstrict-prototypes -Wshadow -Wundef
 ARCHWARNINGSXX = -Wall -Wshadow -Wundef
 ARCHPICFLAGS = -fpic -msingle-pic-base -mpic-register=r10
 
+ARCHCFLAGS += -fno-common
+ARCHCXXFLAGS += -fno-common

Review comment:
       Done
   




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[GitHub] [incubator-nuttx] masayuki2009 commented on a change in pull request #5485: boards: sabre-6quad: Add -fno-common to Make.defs

Posted by GitBox <gi...@apache.org>.
masayuki2009 commented on a change in pull request #5485:
URL: https://github.com/apache/incubator-nuttx/pull/5485#discussion_r805491532



##########
File path: boards/arm/imx6/sabre-6quad/scripts/Make.defs
##########
@@ -39,8 +39,8 @@ ifneq ($(CONFIG_DEBUG_NOOPT),y)
 endif
 
 ARCHCPUFLAGS = -mcpu=cortex-a9 -mfpu=vfpv4-d16
-ARCHCFLAGS = -fno-builtin -ffunction-sections -fdata-sections
-ARCHCXXFLAGS = -fno-builtin -fno-exceptions -fcheck-new -fno-rtti
+ARCHCFLAGS = -fno-builtin -ffunction-sections -fdata-sections -fno-common

Review comment:
       @xiaoxiang781216 
   I found that it's needed for libraries such as libc.a which is included in nuttx-export-x.x.x.zip and used to link applications.  So ARCHCFLAGS and ARCHCXXFLAGS are better place.
   




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[GitHub] [incubator-nuttx] masayuki2009 commented on pull request #5485: boards: sabre-6quad: Add -fno-common to Make.defs

Posted by GitBox <gi...@apache.org>.
masayuki2009 commented on pull request #5485:
URL: https://github.com/apache/incubator-nuttx/pull/5485#issuecomment-1039763904


   @xiaoxiang781216 
   I'm a little bit confused.
   
   The original PR was only for sabre-6quad which is actually needed for `CONFIG_BUILD_KERNEL=y`.
   In this case (not `CONFIG_BUILD_FLAT=y`), some libraries such as libc.a generated using `ARCHCFLAGS` is linked to applications such as init and hello. 
   
   As @ouss4 referred to the documentation, there is a side-effect of `-fno-common`.
   Actually, I encountered link errors for esp32c3-devkit.
   
   Originally, `-fno-common` is used for generating ELF files mostly for `CONFIG_BUILD_FLAT=y`.
   So I think the right direction would be that
   1. The option should be used to generate ELF files for `CONFIG_BUILD_FLAT=y` (i.e. the option should be included in `CELFFLAGS`)
   2. The option should be used to generate object which will be linked to ELF files for `CONFIG_BUILD_KERNEL=y` (i.e. the option should be included in`ARCHCFLAGS`)
   
   What do you think?


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[GitHub] [incubator-nuttx] xiaoxiang781216 merged pull request #5485: boards: sabre-6quad: Add -fno-common to Make.defs

Posted by GitBox <gi...@apache.org>.
xiaoxiang781216 merged pull request #5485:
URL: https://github.com/apache/incubator-nuttx/pull/5485


   


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[GitHub] [incubator-nuttx] xiaoxiang781216 commented on pull request #5485: boards: sabre-6quad: Add -fno-common to Make.defs

Posted by GitBox <gi...@apache.org>.
xiaoxiang781216 commented on pull request #5485:
URL: https://github.com/apache/incubator-nuttx/pull/5485#issuecomment-1039826690


   Yes, I think the direction is right. -fno-common should be added to all source code(elf binary and core os) who want to use elf related feature.
   Since elf is a common feature, I would suggest to add -fno-common in ARCHCFLAGS for all board files(except we hit the error similar to esp32c3-devkit:wapi. Otherwise, people will hit the similar issue again and again.
   BTW, -fno-common encourage the good practice, I don't there is any negative side effect to enable it(except compatible with some prebuilt library).


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[GitHub] [incubator-nuttx] pkarashchenko commented on a change in pull request #5485: boards: sabre-6quad: Add -fno-common to Make.defs

Posted by GitBox <gi...@apache.org>.
pkarashchenko commented on a change in pull request #5485:
URL: https://github.com/apache/incubator-nuttx/pull/5485#discussion_r806135123



##########
File path: arch/arm/src/rtl8720c/Toolchain.defs
##########
@@ -50,8 +50,8 @@ ifneq ($(CONFIG_ARMV8M_STACKCHECK),y)
 endif
 endif
 
-ARCHCFLAGS = -fno-builtin -march=armv8-m.main+dsp -mthumb -mfloat-abi=soft -D__thumb2__ -g -gdwarf-3 -Os  -fno-tree-scev-cprop
-ARCHCXXFLAGS = -fno-builtin -nostdinc++ -std=c++11
+ARCHCFLAGS = -fno-builtin -march=armv8-m.main+dsp -mthumb -mfloat-abi=soft -D__thumb2__ -g -gdwarf-3 -Os  -fno-tree-scev-cprop -fno-common

Review comment:
       IMO it is good to group `-fno-common` with `-ffunction-sections -fdata-sections`




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[GitHub] [incubator-nuttx] xiaoxiang781216 edited a comment on pull request #5485: boards: sabre-6quad: Add -fno-common to Make.defs

Posted by GitBox <gi...@apache.org>.
xiaoxiang781216 edited a comment on pull request #5485:
URL: https://github.com/apache/incubator-nuttx/pull/5485#issuecomment-1039826690


   Yes, I think the direction is right. -fno-common should be added to all source code(elf binary and core os) who want to use elf related feature.
   Since elf is a common feature, I would suggest to add -fno-common in ARCHCFLAGS for all board files(except we hit the error similar to esp32c3-devkit:wapi. Otherwise, people will hit the similar issue again and again.
   BTW, -fno-common encourage the good practice, I don't see there is any negative side effect to enable it(except compatible with some prebuilt library).


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[GitHub] [incubator-nuttx] xiaoxiang781216 commented on a change in pull request #5485: boards: sabre-6quad: Add -fno-common to Make.defs

Posted by GitBox <gi...@apache.org>.
xiaoxiang781216 commented on a change in pull request #5485:
URL: https://github.com/apache/incubator-nuttx/pull/5485#discussion_r805483425



##########
File path: boards/arm/imx6/sabre-6quad/scripts/Make.defs
##########
@@ -39,8 +39,8 @@ ifneq ($(CONFIG_DEBUG_NOOPT),y)
 endif
 
 ARCHCPUFLAGS = -mcpu=cortex-a9 -mfpu=vfpv4-d16
-ARCHCFLAGS = -fno-builtin -ffunction-sections -fdata-sections
-ARCHCXXFLAGS = -fno-builtin -fno-exceptions -fcheck-new -fno-rtti
+ARCHCFLAGS = -fno-builtin -ffunction-sections -fdata-sections -fno-common

Review comment:
       If so, should we fix all place?




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[GitHub] [incubator-nuttx] masayuki2009 commented on a change in pull request #5485: boards: sabre-6quad: Add -fno-common to Make.defs

Posted by GitBox <gi...@apache.org>.
masayuki2009 commented on a change in pull request #5485:
URL: https://github.com/apache/incubator-nuttx/pull/5485#discussion_r806327482



##########
File path: arch/arm/src/rtl8720c/Toolchain.defs
##########
@@ -50,8 +50,8 @@ ifneq ($(CONFIG_ARMV8M_STACKCHECK),y)
 endif
 endif
 
-ARCHCFLAGS = -fno-builtin -march=armv8-m.main+dsp -mthumb -mfloat-abi=soft -D__thumb2__ -g -gdwarf-3 -Os  -fno-tree-scev-cprop
-ARCHCXXFLAGS = -fno-builtin -nostdinc++ -std=c++11
+ARCHCFLAGS = -fno-builtin -march=armv8-m.main+dsp -mthumb -mfloat-abi=soft -D__thumb2__ -g -gdwarf-3 -Os  -fno-tree-scev-cprop -fno-common

Review comment:
       @pkarashchenko 
   Do you mean that `-fno-common` should be moved to `ARCHOPTIMIZATION`
   or `-ffunction-sections -fdata-sections` should be moved to `ARCHCFLAGS/ARCHCXXFLAGS` ?
   
   




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[GitHub] [incubator-nuttx] Ouss4 commented on pull request #5485: boards: sabre-6quad: Add -fno-common to Make.defs

Posted by GitBox <gi...@apache.org>.
Ouss4 commented on pull request #5485:
URL: https://github.com/apache/incubator-nuttx/pull/5485#issuecomment-1039078007


   I'm not sure what's the cause of this redefinition.  I too built locally and is working with no issues.  Investigating...


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[GitHub] [incubator-nuttx] masayuki2009 commented on a change in pull request #5485: boards: sabre-6quad: Add -fno-common to Make.defs

Posted by GitBox <gi...@apache.org>.
masayuki2009 commented on a change in pull request #5485:
URL: https://github.com/apache/incubator-nuttx/pull/5485#discussion_r805491532



##########
File path: boards/arm/imx6/sabre-6quad/scripts/Make.defs
##########
@@ -39,8 +39,8 @@ ifneq ($(CONFIG_DEBUG_NOOPT),y)
 endif
 
 ARCHCPUFLAGS = -mcpu=cortex-a9 -mfpu=vfpv4-d16
-ARCHCFLAGS = -fno-builtin -ffunction-sections -fdata-sections
-ARCHCXXFLAGS = -fno-builtin -fno-exceptions -fcheck-new -fno-rtti
+ARCHCFLAGS = -fno-builtin -ffunction-sections -fdata-sections -fno-common

Review comment:
       @xiaoxiang781216 
   I found that it's needed for libraries such as libc.a which is included in nuttx-export-x.x.x.zip and used to link applications. 




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[GitHub] [incubator-nuttx] masayuki2009 commented on pull request #5485: boards: sabre-6quad: Add -fno-common to Make.defs

Posted by GitBox <gi...@apache.org>.
masayuki2009 commented on pull request #5485:
URL: https://github.com/apache/incubator-nuttx/pull/5485#issuecomment-1038665127


   >Hmm, I don't know why the Build / macOS (macos) failed.
   
   My local build without this PR also fails.
   


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[GitHub] [incubator-nuttx] masayuki2009 commented on pull request #5485: boards: sabre-6quad: Add -fno-common to Make.defs

Posted by GitBox <gi...@apache.org>.
masayuki2009 commented on pull request #5485:
URL: https://github.com/apache/incubator-nuttx/pull/5485#issuecomment-1038684480


   @Ouss4 @gustavonihei 
   Do you know what is happening to the latest esp32c3-devkit:wapi build?
   


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[GitHub] [incubator-nuttx] xiaoxiang781216 commented on a change in pull request #5485: boards: sabre-6quad: Add -fno-common to Make.defs

Posted by GitBox <gi...@apache.org>.
xiaoxiang781216 commented on a change in pull request #5485:
URL: https://github.com/apache/incubator-nuttx/pull/5485#discussion_r806405475



##########
File path: arch/arm/src/rtl8720c/Toolchain.defs
##########
@@ -50,8 +50,8 @@ ifneq ($(CONFIG_ARMV8M_STACKCHECK),y)
 endif
 endif
 
-ARCHCFLAGS = -fno-builtin -march=armv8-m.main+dsp -mthumb -mfloat-abi=soft -D__thumb2__ -g -gdwarf-3 -Os  -fno-tree-scev-cprop
-ARCHCXXFLAGS = -fno-builtin -nostdinc++ -std=c++11
+ARCHCFLAGS = -fno-builtin -march=armv8-m.main+dsp -mthumb -mfloat-abi=soft -D__thumb2__ -g -gdwarf-3 -Os  -fno-tree-scev-cprop -fno-common

Review comment:
       The library generate with/without -fno-common mayn't link together. So, I think it's better to fix the selection.




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[GitHub] [incubator-nuttx] xiaoxiang781216 commented on a change in pull request #5485: boards: sabre-6quad: Add -fno-common to Make.defs

Posted by GitBox <gi...@apache.org>.
xiaoxiang781216 commented on a change in pull request #5485:
URL: https://github.com/apache/incubator-nuttx/pull/5485#discussion_r805468511



##########
File path: boards/arm/imx6/sabre-6quad/scripts/Make.defs
##########
@@ -45,6 +45,9 @@ ARCHWARNINGS = -Wall -Wstrict-prototypes -Wshadow -Wundef
 ARCHWARNINGSXX = -Wall -Wshadow -Wundef
 ARCHPICFLAGS = -fpic -msingle-pic-base -mpic-register=r10
 
+ARCHCFLAGS += -fno-common
+ARCHCXXFLAGS += -fno-common

Review comment:
       merge to line 42-43




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[GitHub] [incubator-nuttx] xiaoxiang781216 commented on pull request #5485: boards: sabre-6quad: Add -fno-common to Make.defs

Posted by GitBox <gi...@apache.org>.
xiaoxiang781216 commented on pull request #5485:
URL: https://github.com/apache/incubator-nuttx/pull/5485#issuecomment-1039826690






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[GitHub] [incubator-nuttx] xiaoxiang781216 commented on a change in pull request #5485: boards: sabre-6quad: Add -fno-common to Make.defs

Posted by GitBox <gi...@apache.org>.
xiaoxiang781216 commented on a change in pull request #5485:
URL: https://github.com/apache/incubator-nuttx/pull/5485#discussion_r805480356



##########
File path: boards/arm/imx6/sabre-6quad/scripts/Make.defs
##########
@@ -39,8 +39,8 @@ ifneq ($(CONFIG_DEBUG_NOOPT),y)
 endif
 
 ARCHCPUFLAGS = -mcpu=cortex-a9 -mfpu=vfpv4-d16
-ARCHCFLAGS = -fno-builtin -ffunction-sections -fdata-sections
-ARCHCXXFLAGS = -fno-builtin -fno-exceptions -fcheck-new -fno-rtti
+ARCHCFLAGS = -fno-builtin -ffunction-sections -fdata-sections -fno-common

Review comment:
       After checking other Make.defs, it look like the better place is add -fno-common to CELFFLAGS/CXXELFFLAGS.




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[GitHub] [incubator-nuttx] xiaoxiang781216 commented on a change in pull request #5485: boards: sabre-6quad: Add -fno-common to Make.defs

Posted by GitBox <gi...@apache.org>.
xiaoxiang781216 commented on a change in pull request #5485:
URL: https://github.com/apache/incubator-nuttx/pull/5485#discussion_r805492565



##########
File path: boards/arm/imx6/sabre-6quad/scripts/Make.defs
##########
@@ -39,8 +39,8 @@ ifneq ($(CONFIG_DEBUG_NOOPT),y)
 endif
 
 ARCHCPUFLAGS = -mcpu=cortex-a9 -mfpu=vfpv4-d16
-ARCHCFLAGS = -fno-builtin -ffunction-sections -fdata-sections
-ARCHCXXFLAGS = -fno-builtin -fno-exceptions -fcheck-new -fno-rtti
+ARCHCFLAGS = -fno-builtin -ffunction-sections -fdata-sections -fno-common

Review comment:
       It look the better fix is add -fno-common to all ARCHCPUFLAGS/ARCHCXXFLAGS and remove from CELFFLAGS/CXXELFFLAGS.




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[GitHub] [incubator-nuttx] pkarashchenko commented on a change in pull request #5485: boards: sabre-6quad: Add -fno-common to Make.defs

Posted by GitBox <gi...@apache.org>.
pkarashchenko commented on a change in pull request #5485:
URL: https://github.com/apache/incubator-nuttx/pull/5485#discussion_r806135123



##########
File path: arch/arm/src/rtl8720c/Toolchain.defs
##########
@@ -50,8 +50,8 @@ ifneq ($(CONFIG_ARMV8M_STACKCHECK),y)
 endif
 endif
 
-ARCHCFLAGS = -fno-builtin -march=armv8-m.main+dsp -mthumb -mfloat-abi=soft -D__thumb2__ -g -gdwarf-3 -Os  -fno-tree-scev-cprop
-ARCHCXXFLAGS = -fno-builtin -nostdinc++ -std=c++11
+ARCHCFLAGS = -fno-builtin -march=armv8-m.main+dsp -mthumb -mfloat-abi=soft -D__thumb2__ -g -gdwarf-3 -Os  -fno-tree-scev-cprop -fno-common

Review comment:
       IMO it is good to group `-fno-common` with `-ffunction-sections -fdata-sections`

##########
File path: arch/arm/src/rtl8720c/Toolchain.defs
##########
@@ -50,8 +50,8 @@ ifneq ($(CONFIG_ARMV8M_STACKCHECK),y)
 endif
 endif
 
-ARCHCFLAGS = -fno-builtin -march=armv8-m.main+dsp -mthumb -mfloat-abi=soft -D__thumb2__ -g -gdwarf-3 -Os  -fno-tree-scev-cprop
-ARCHCXXFLAGS = -fno-builtin -nostdinc++ -std=c++11
+ARCHCFLAGS = -fno-builtin -march=armv8-m.main+dsp -mthumb -mfloat-abi=soft -D__thumb2__ -g -gdwarf-3 -Os  -fno-tree-scev-cprop -fno-common

Review comment:
       This is a point for discussion, but I think we should move `-fno-common` to `ARCHOPTIMIZATION`.




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[GitHub] [incubator-nuttx] masayuki2009 commented on a change in pull request #5485: boards: sabre-6quad: Add -fno-common to Make.defs

Posted by GitBox <gi...@apache.org>.
masayuki2009 commented on a change in pull request #5485:
URL: https://github.com/apache/incubator-nuttx/pull/5485#discussion_r805483079



##########
File path: boards/arm/imx6/sabre-6quad/scripts/Make.defs
##########
@@ -39,8 +39,8 @@ ifneq ($(CONFIG_DEBUG_NOOPT),y)
 endif
 
 ARCHCPUFLAGS = -mcpu=cortex-a9 -mfpu=vfpv4-d16
-ARCHCFLAGS = -fno-builtin -ffunction-sections -fdata-sections
-ARCHCXXFLAGS = -fno-builtin -fno-exceptions -fcheck-new -fno-rtti
+ARCHCFLAGS = -fno-builtin -ffunction-sections -fdata-sections -fno-common

Review comment:
       > After checking other Make.defs, it look like the better place is add -fno-common to CELFFLAGS/CXXELFFLAGS.
   
   @xiaoxiang781216 
   I found that adding -fno-common to CELFFLAGS/CXXELFFLAGS does not work with CONFIG_BUILD_KERNEL=y.




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[GitHub] [incubator-nuttx] xiaoxiang781216 commented on pull request #5485: boards: sabre-6quad: Add -fno-common to Make.defs

Posted by GitBox <gi...@apache.org>.
xiaoxiang781216 commented on pull request #5485:
URL: https://github.com/apache/incubator-nuttx/pull/5485#issuecomment-1046128497


   > Hmm, I don't know why the Build / macOS (macos) failed.
   > 
   > ```
   > ====================================================================================
   > Configuration/Tool: esp32c3-devkit/wapi,CONFIG_RISCV_TOOLCHAIN_GNU_RVGL
   > ------------------------------------------------------------------------------------
   >   Cleaning...
   >   Configuring...
   >   Disabling CONFIG_RISCV_TOOLCHAIN_GNU_RVGL
   >   Enabling CONFIG_RISCV_TOOLCHAIN_GNU_RVGL
   >   Building NuttX...
   >   % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
   >                                  Dload  Upload   Total   Spent    Left  Speed
   > 
   >   0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0
   > 100   178  100   178    0     0    921      0 --:--:-- --:--:-- --:--:--   946
   > 
   > 100  367k    0  367k    0     0   685k      0 --:--:-- --:--:-- --:--:--  685k
   > 100 1897k    0 1897k    0     0  1273k      0 --:--:--  0:00:01 --:--:-- 1601k
   > 100 5862k    0 5862k    0     0  2219k      0 --:--:--  0:00:02 --:--:-- 2610k
   > 100 9992k    0 9992k    0     0  3570k      0 --:--:--  0:00:02 --:--:-- 4255k
   > riscv64-unknown-elf-ld: /Users/runner/work/incubator-nuttx/incubator-nuttx/sources/nuttx/staging/libarch.a(esp32c3_wifi_utils.o):(.rodata.g_wifi_default_mesh_crypto_funcs+0x0): multiple definition of `g_wifi_default_mesh_crypto_funcs'; /Users/runner/work/incubator-nuttx/incubator-nuttx/sources/nuttx/staging/libarch.a(esp32c3_wlan.o):(.rodata.g_wifi_default_mesh_crypto_funcs+0x0): first defined here
   > riscv64-unknown-elf-ld: /Users/runner/work/incubator-nuttx/incubator-nuttx/sources/nuttx/staging/libarch.a(esp32c3_wifi_utils.o):(.rodata.g_wifi_default_wpa_crypto_funcs+0x0): multiple definition of `g_wifi_default_wpa_crypto_funcs'; /Users/runner/work/incubator-nuttx/incubator-nuttx/sources/nuttx/staging/libarch.a(esp32c3_wlan.o):(.rodata.g_wifi_default_wpa_crypto_funcs+0x0): first defined here
   > riscv64-unknown-elf-ld: /Users/runner/work/incubator-nuttx/incubator-nuttx/sources/nuttx/staging/libarch.a(esp32c3_wifi_adapter.o):(.rodata.g_wifi_default_mesh_crypto_funcs+0x0): multiple definition of `g_wifi_default_mesh_crypto_funcs'; /Users/runner/work/incubator-nuttx/incubator-nuttx/sources/nuttx/staging/libarch.a(esp32c3_wlan.o):(.rodata.g_wifi_default_mesh_crypto_funcs+0x0): first defined here
   > riscv64-unknown-elf-ld: /Users/runner/work/incubator-nuttx/incubator-nuttx/sources/nuttx/staging/libarch.a(esp32c3_wifi_adapter.o): in function `.LANCHOR13':
   > esp32c3_wifi_adapter.c:(.rodata.g_wifi_default_wpa_crypto_funcs+0x0): multiple definition of `g_wifi_default_wpa_crypto_funcs'; /Users/runner/work/incubator-nuttx/incubator-nuttx/sources/nuttx/staging/libarch.a(esp32c3_wlan.o):(.rodata.g_wifi_default_wpa_crypto_funcs+0x0): first defined here
   > riscv64-unknown-elf-ld: /Users/runner/work/incubator-nuttx/incubator-nuttx/sources/nuttx/staging/libarch.a(esp32c3_wireless.o):(.rodata.g_wifi_default_mesh_crypto_funcs+0x0): multiple definition of `g_wifi_default_mesh_crypto_funcs'; /Users/runner/work/incubator-nuttx/incubator-nuttx/sources/nuttx/staging/libarch.a(esp32c3_wlan.o):(.rodata.g_wifi_default_mesh_crypto_funcs+0x0): first defined here
   > riscv64-unknown-elf-ld: /Users/runner/work/incubator-nuttx/incubator-nuttx/sources/nuttx/staging/libarch.a(esp32c3_wireless.o):(.rodata.g_wifi_default_wpa_crypto_funcs+0x0): multiple definition of `g_wifi_default_wpa_crypto_funcs'; /Users/runner/work/incubator-nuttx/incubator-nuttx/sources/nuttx/staging/libarch.a(esp32c3_wlan.o):(.rodata.g_wifi_default_wpa_crypto_funcs+0x0): first defined here
   > make[1]: *** [nuttx] Error 1
   > make: *** [nuttx] Error 2
   > make: Target `all' not remade because of errors.
   > /Users/runner/work/incubator-nuttx/incubator-nuttx/sources/nuttx/tools/testbuild.sh: line 252: /Users/runner/work/incubator-nuttx/incubator-nuttx/sources/nuttx/../nuttx/nuttx.manifest: No such file or director
   > ```
   
   This patch may fix this link error:
   https://github.com/espressif/esp-wireless-drivers-3rdparty/pull/1
   @Ouss4 please take a look.


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[GitHub] [incubator-nuttx] masayuki2009 commented on pull request #5485: boards: sabre-6quad: Add -fno-common to Make.defs

Posted by GitBox <gi...@apache.org>.
masayuki2009 commented on pull request #5485:
URL: https://github.com/apache/incubator-nuttx/pull/5485#issuecomment-1038660562


   Hmm, I don't know why the Build / macOS (macos) failed.
   
   ```
   ====================================================================================
   Configuration/Tool: esp32c3-devkit/wapi,CONFIG_RISCV_TOOLCHAIN_GNU_RVGL
   ------------------------------------------------------------------------------------
     Cleaning...
     Configuring...
     Disabling CONFIG_RISCV_TOOLCHAIN_GNU_RVGL
     Enabling CONFIG_RISCV_TOOLCHAIN_GNU_RVGL
     Building NuttX...
     % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                    Dload  Upload   Total   Spent    Left  Speed
   
     0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0
   100   178  100   178    0     0    921      0 --:--:-- --:--:-- --:--:--   946
   
   100  367k    0  367k    0     0   685k      0 --:--:-- --:--:-- --:--:--  685k
   100 1897k    0 1897k    0     0  1273k      0 --:--:--  0:00:01 --:--:-- 1601k
   100 5862k    0 5862k    0     0  2219k      0 --:--:--  0:00:02 --:--:-- 2610k
   100 9992k    0 9992k    0     0  3570k      0 --:--:--  0:00:02 --:--:-- 4255k
   riscv64-unknown-elf-ld: /Users/runner/work/incubator-nuttx/incubator-nuttx/sources/nuttx/staging/libarch.a(esp32c3_wifi_utils.o):(.rodata.g_wifi_default_mesh_crypto_funcs+0x0): multiple definition of `g_wifi_default_mesh_crypto_funcs'; /Users/runner/work/incubator-nuttx/incubator-nuttx/sources/nuttx/staging/libarch.a(esp32c3_wlan.o):(.rodata.g_wifi_default_mesh_crypto_funcs+0x0): first defined here
   riscv64-unknown-elf-ld: /Users/runner/work/incubator-nuttx/incubator-nuttx/sources/nuttx/staging/libarch.a(esp32c3_wifi_utils.o):(.rodata.g_wifi_default_wpa_crypto_funcs+0x0): multiple definition of `g_wifi_default_wpa_crypto_funcs'; /Users/runner/work/incubator-nuttx/incubator-nuttx/sources/nuttx/staging/libarch.a(esp32c3_wlan.o):(.rodata.g_wifi_default_wpa_crypto_funcs+0x0): first defined here
   riscv64-unknown-elf-ld: /Users/runner/work/incubator-nuttx/incubator-nuttx/sources/nuttx/staging/libarch.a(esp32c3_wifi_adapter.o):(.rodata.g_wifi_default_mesh_crypto_funcs+0x0): multiple definition of `g_wifi_default_mesh_crypto_funcs'; /Users/runner/work/incubator-nuttx/incubator-nuttx/sources/nuttx/staging/libarch.a(esp32c3_wlan.o):(.rodata.g_wifi_default_mesh_crypto_funcs+0x0): first defined here
   riscv64-unknown-elf-ld: /Users/runner/work/incubator-nuttx/incubator-nuttx/sources/nuttx/staging/libarch.a(esp32c3_wifi_adapter.o): in function `.LANCHOR13':
   esp32c3_wifi_adapter.c:(.rodata.g_wifi_default_wpa_crypto_funcs+0x0): multiple definition of `g_wifi_default_wpa_crypto_funcs'; /Users/runner/work/incubator-nuttx/incubator-nuttx/sources/nuttx/staging/libarch.a(esp32c3_wlan.o):(.rodata.g_wifi_default_wpa_crypto_funcs+0x0): first defined here
   riscv64-unknown-elf-ld: /Users/runner/work/incubator-nuttx/incubator-nuttx/sources/nuttx/staging/libarch.a(esp32c3_wireless.o):(.rodata.g_wifi_default_mesh_crypto_funcs+0x0): multiple definition of `g_wifi_default_mesh_crypto_funcs'; /Users/runner/work/incubator-nuttx/incubator-nuttx/sources/nuttx/staging/libarch.a(esp32c3_wlan.o):(.rodata.g_wifi_default_mesh_crypto_funcs+0x0): first defined here
   riscv64-unknown-elf-ld: /Users/runner/work/incubator-nuttx/incubator-nuttx/sources/nuttx/staging/libarch.a(esp32c3_wireless.o):(.rodata.g_wifi_default_wpa_crypto_funcs+0x0): multiple definition of `g_wifi_default_wpa_crypto_funcs'; /Users/runner/work/incubator-nuttx/incubator-nuttx/sources/nuttx/staging/libarch.a(esp32c3_wlan.o):(.rodata.g_wifi_default_wpa_crypto_funcs+0x0): first defined here
   make[1]: *** [nuttx] Error 1
   make: *** [nuttx] Error 2
   make: Target `all' not remade because of errors.
   /Users/runner/work/incubator-nuttx/incubator-nuttx/sources/nuttx/tools/testbuild.sh: line 252: /Users/runner/work/incubator-nuttx/incubator-nuttx/sources/nuttx/../nuttx/nuttx.manifest: No such file or director
   ```


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[GitHub] [incubator-nuttx] xiaoxiang781216 commented on a change in pull request #5485: boards: sabre-6quad: Add -fno-common to Make.defs

Posted by GitBox <gi...@apache.org>.
xiaoxiang781216 commented on a change in pull request #5485:
URL: https://github.com/apache/incubator-nuttx/pull/5485#discussion_r806405475



##########
File path: arch/arm/src/rtl8720c/Toolchain.defs
##########
@@ -50,8 +50,8 @@ ifneq ($(CONFIG_ARMV8M_STACKCHECK),y)
 endif
 endif
 
-ARCHCFLAGS = -fno-builtin -march=armv8-m.main+dsp -mthumb -mfloat-abi=soft -D__thumb2__ -g -gdwarf-3 -Os  -fno-tree-scev-cprop
-ARCHCXXFLAGS = -fno-builtin -nostdinc++ -std=c++11
+ARCHCFLAGS = -fno-builtin -march=armv8-m.main+dsp -mthumb -mfloat-abi=soft -D__thumb2__ -g -gdwarf-3 -Os  -fno-tree-scev-cprop -fno-common

Review comment:
       The library generate with/without -fno-common mayn't link together. So, I think it's better to fix the selection.




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[GitHub] [incubator-nuttx] masayuki2009 commented on pull request #5485: boards: sabre-6quad: Add -fno-common to Make.defs

Posted by GitBox <gi...@apache.org>.
masayuki2009 commented on pull request #5485:
URL: https://github.com/apache/incubator-nuttx/pull/5485#issuecomment-1039673417


   >I don't know if the libraries are built with -fcommon.
   
   @Ouss4 
   I understand.
   
   @xiaoxiang781216 
   Let me exclude esp32c3-devkit.
   


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