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Tls export symbols #546

Merged
merged 14 commits into from
Mar 15, 2023
Merged

Tls export symbols #546

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bf56be5
export TLS symbols, make tbss next to tdata, set tdata as PT_LOAD to …
palainp Feb 7, 2023
b1ad3b4
set memcpy as non inlinable to prevent any compiler optimisation with…
palainp Feb 7, 2023
7e5e664
skip empty PT_LOAD section in the tenders
palainp Feb 7, 2023
c5d2170
update linker scripts for virtio and xen
palainp Feb 7, 2023
b2b6acb
- adapt the elf reader in the tenders to allow reading the tdata
palainp Feb 8, 2023
9eeaada
keep alignement after data
palainp Feb 8, 2023
59b902c
- correctly set the TLS tp field of the tcb block, and use functions …
palainp Feb 11, 2023
491157f
fix name omission
palainp Feb 11, 2023
36c9d02
fix indendation
palainp Feb 11, 2023
7d618d6
set tp offset for ppc64 back
palainp Feb 16, 2023
e06a111
try fix for BSD systems (if succeed should be rebased)
palainp Feb 16, 2023
23651e2
set tdata back as PT_LOAD, set the elf loader back as loading only PT…
palainp Feb 16, 2023
de8661f
use calculated tp value
palainp Feb 22, 2023
ec9ca09
fix indentation
palainp Mar 14, 2023
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2 changes: 1 addition & 1 deletion bindings/lib.c
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Original file line number Diff line number Diff line change
Expand Up @@ -67,7 +67,7 @@ void *memset(void *dest, int c, size_t n)
return dest;
}

void *memcpy(void *restrict dest, const void *restrict src, size_t n)
void *__attribute__ ((noinline)) memcpy(void *restrict dest, const void *restrict src, size_t n)
{
unsigned char *d = dest;
const unsigned char *s = src;
Expand Down
31 changes: 23 additions & 8 deletions bindings/solo5_hvt.lds
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Original file line number Diff line number Diff line change
Expand Up @@ -40,8 +40,9 @@ PHDRS {
rodata PT_LOAD FLAGS(4);

data PT_LOAD;
tdata PT_TLS;
tbss PT_TLS;
tdata PT_LOAD FLAGS(4); /* RO: this have to be copied into each thread */
tbss PT_TLS FLAGS(0); /* no perm needed */
bss PT_NULL FLAGS(0);
note.not_openbsd PT_NOTE; /* Must come first. */
note.abi PT_NOTE;
note.manifest PT_NOTE;
Expand Down Expand Up @@ -115,24 +116,35 @@ SECTIONS {
*(.data)
*(.data.*)
}

. = ALIGN(CONSTANT(MAXPAGESIZE));
/*
* tdata and tbss have to be side by side to help the linker caculate the
* various __thread variables offsets.
*/
.tdata :
{
_stdata = .;
*(.tdata)
. = ALIGN(CONSTANT(MAXPAGESIZE));
} :tdata

. = ALIGN(CONSTANT(MAXPAGESIZE));
/*
* _edata is the address of the end of the area to be copied with multiboot
* (virtio and xen)
*/
_edata = .;

/* Read-write data (uninitialized) */
.tbss :
{
*(.tbss)
} :tbss
.bss :
{
*(.bss)
*(COMMON)
}
.tbss (NOLOAD) :
{
*(.tbss)
} :tbss
} :bss

. = ALIGN(CONSTANT(MAXPAGESIZE));
_ebss = .;
Expand All @@ -143,4 +155,7 @@ SECTIONS {
/DISCARD/ : {
*(.note.gnu.*)
}

_ltdata = _edata - _stdata;
_ltbss = SIZEOF(.tbss);
}
31 changes: 23 additions & 8 deletions bindings/solo5_muen.lds
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Original file line number Diff line number Diff line change
Expand Up @@ -39,8 +39,9 @@ PHDRS {
FLAGS values come from PF_x in elf.h */
rodata PT_LOAD;
data PT_LOAD;
tdata PT_TLS;
tbss PT_TLS;
tdata PT_LOAD FLAGS(4); /* RO: this have to be copied into each thread */
tbss PT_TLS FLAGS(0); /* no perm needed */
bss PT_NULL FLAGS(0);
note.not_openbsd PT_NOTE; /* Must come first. */
note.abi PT_NOTE;
note.manifest PT_NOTE;
Expand Down Expand Up @@ -114,24 +115,35 @@ SECTIONS {
*(.data)
*(.data.*)
}

. = ALIGN(CONSTANT(MAXPAGESIZE));
/*
* tdata and tbss have to be side by side to help the linker caculate the
* various __thread variables offsets.
*/
.tdata :
{
_stdata = .;
*(.tdata)
. = ALIGN(CONSTANT(MAXPAGESIZE));
} :tdata

. = ALIGN(CONSTANT(MAXPAGESIZE));
/*
* _edata is the address of the end of the area to be copied with multiboot
* (virtio and xen)
*/
_edata = .;

/* Read-write data (uninitialized) */
.tbss :
{
*(.tbss)
} :tbss
.bss :
{
*(.bss)
*(COMMON)
}
.tbss (NOLOAD) :
{
*(.tbss)
} :tbss
} :bss

. = ALIGN(CONSTANT(MAXPAGESIZE));
_ebss = .;
Expand All @@ -142,4 +154,7 @@ SECTIONS {
/DISCARD/ : {
*(.note.gnu.*)
}

_ltdata = SIZEOF(.tdata);
_ltbss = SIZEOF(.tbss);
}
31 changes: 23 additions & 8 deletions bindings/solo5_spt.lds
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -38,8 +38,9 @@ PHDRS {
text PT_LOAD FLAGS(5); /* No FILEHDR or PHDRS, force R/E only.
FLAGS values come from PF_x in elf.h */
data PT_LOAD;
tdata PT_TLS;
tbss PT_TLS;
tdata PT_LOAD FLAGS(4); /* RO: this have to be copied into each thread */
tbss PT_TLS FLAGS(0); /* no perm needed */
bss PT_NULL FLAGS(0);
note.not_openbsd PT_NOTE; /* Must come first. */
note.abi PT_NOTE;
note.manifest PT_NOTE;
Expand Down Expand Up @@ -113,24 +114,35 @@ SECTIONS {
*(.data)
*(.data.*)
}

. = ALIGN(CONSTANT(MAXPAGESIZE));
/*
* tdata and tbss have to be side by side to help the linker caculate the
* various __thread variables offsets.
*/
.tdata :
{
_stdata = .;
*(.tdata)
. = ALIGN(CONSTANT(MAXPAGESIZE));
} :tdata

. = ALIGN(CONSTANT(MAXPAGESIZE));
/*
* _edata is the address of the end of the area to be copied with multiboot
* (virtio and xen)
*/
_edata = .;

/* Read-write data (uninitialized) */
.tbss :
{
*(.tbss)
} :tbss
.bss :
{
*(.bss)
*(COMMON)
}
.tbss (NOLOAD):
{
*(.tbss)
} :tbss
} :bss

. = ALIGN(CONSTANT(MAXPAGESIZE));
_ebss = .;
Expand All @@ -141,4 +153,7 @@ SECTIONS {
/DISCARD/ : {
*(.note.gnu.*)
}

_ltdata = _edata - _stdata;
_ltbss = SIZEOF(.tbss);
}
31 changes: 23 additions & 8 deletions bindings/solo5_stub.lds
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -38,8 +38,9 @@ PHDRS {
text PT_LOAD FLAGS(5); /* No FILEHDR or PHDRS, force R/E only.
FLAGS values come from PF_x in elf.h */
data PT_LOAD;
tdata PT_TLS;
tbss PT_TLS;
tdata PT_LOAD FLAGS(4); /* RO: this have to be copied into each thread */
tbss PT_TLS FLAGS(0); /* no perm needed */
bss PT_NULL FLAGS(0);
note.not_openbsd PT_NOTE; /* Must come first. */
note.abi PT_NOTE;
note.manifest PT_NOTE;
Expand Down Expand Up @@ -113,24 +114,35 @@ SECTIONS {
*(.data)
*(.data.*)
}

. = ALIGN(CONSTANT(MAXPAGESIZE));
/*
* tdata and tbss have to be side by side to help the linker caculate the
* various __thread variables offsets.
*/
.tdata :
{
_stdata = .;
*(.tdata)
. = ALIGN(CONSTANT(MAXPAGESIZE));
} :tdata

. = ALIGN(CONSTANT(MAXPAGESIZE));
/*
* _edata is the address of the end of the area to be copied with multiboot
* (virtio and xen)
*/
_edata = .;

/* Read-write data (uninitialized) */
.tbss :
{
*(.tbss)
} :tbss
.bss :
{
*(.bss)
*(COMMON)
}
.tbss (NOLOAD):
{
*(.tbss)
} :tbss
} :bss

. = ALIGN(CONSTANT(MAXPAGESIZE));
_ebss = .;
Expand All @@ -141,4 +153,7 @@ SECTIONS {
/DISCARD/ : {
*(.note.gnu.*)
}

_ltdata = SIZEOF(.tdata);
_ltbss = SIZEOF(.tbss);
}
31 changes: 23 additions & 8 deletions bindings/solo5_virtio.lds
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -38,8 +38,9 @@ PHDRS {
text PT_LOAD FLAGS(5); /* No FILEHDR or PHDRS, force R/E only.
FLAGS values come from PF_x in elf.h */
data PT_LOAD;
tdata PT_TLS;
tbss PT_TLS;
tdata PT_LOAD FLAGS(4); /* RO: this have to be copied into each thread */
tbss PT_TLS FLAGS(0); /* no perm needed */
bss PT_NULL FLAGS(0);
note.not_openbsd PT_NOTE; /* Must come first. */
note.abi PT_NOTE;
note.manifest PT_NOTE;
Expand Down Expand Up @@ -114,24 +115,35 @@ SECTIONS {
*(.data)
*(.data.*)
}

. = ALIGN(CONSTANT(MAXPAGESIZE));
/*
* tdata and tbss have to be side by side to help the linker caculate the
* various __thread variables offsets.
*/
.tdata :
{
_stdata = .;
*(.tdata)
. = ALIGN(CONSTANT(MAXPAGESIZE));
} :tdata

. = ALIGN(CONSTANT(MAXPAGESIZE));
/*
* _edata is the address of the end of the area to be copied with multiboot
* (virtio and xen)
*/
_edata = .;

/* Read-write data (uninitialized) */
.tbss :
{
*(.tbss)
} :tbss
.bss :
{
*(.bss)
*(COMMON)
}
.tbss (NOLOAD) :
{
*(.tbss)
} :tbss
} :bss

. = ALIGN(CONSTANT(MAXPAGESIZE));
_ebss = .;
Expand All @@ -142,4 +154,7 @@ SECTIONS {
/DISCARD/ : {
*(.note.gnu.*)
}

_ltdata = _edata - _stdata;
_ltbss = SIZEOF(.tbss);
}
31 changes: 23 additions & 8 deletions bindings/solo5_xen.lds
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -38,8 +38,9 @@ PHDRS {
text PT_LOAD FLAGS(5); /* No FILEHDR or PHDRS, force R/E only.
FLAGS values come from PF_x in elf.h */
data PT_LOAD;
tdata PT_TLS;
tbss PT_TLS;
tdata PT_LOAD FLAGS(4); /* RO: this have to be copied into each thread */
tbss PT_TLS FLAGS(0); /* no perm needed */
bss PT_NULL FLAGS(0);
note.not_openbsd PT_NOTE; /* Must come first. */
note.xen PT_NOTE;
note.abi PT_NOTE;
Expand Down Expand Up @@ -119,24 +120,35 @@ SECTIONS {
*(.data)
*(.data.*)
}

. = ALIGN(CONSTANT(MAXPAGESIZE));
/*
* tdata and tbss have to be side by side to help the linker caculate the
* various __thread variables offsets.
*/
.tdata :
{
_stdata = .;
*(.tdata)
. = ALIGN(CONSTANT(MAXPAGESIZE));
} :tdata

. = ALIGN(CONSTANT(MAXPAGESIZE));
/*
* _edata is the address of the end of the area to be copied with multiboot
* (virtio and xen)
*/
_edata = .;

/* Read-write data (uninitialized) */
.tbss :
{
*(.tbss)
} :tbss
.bss :
{
*(.bss)
*(COMMON)
}
.tbss (NOLOAD) :
{
*(.tbss)
} :tbss
} :bss

. = ALIGN(CONSTANT(MAXPAGESIZE));
_ebss = .;
Expand All @@ -147,4 +159,7 @@ SECTIONS {
/DISCARD/ : {
*(.note.gnu.*)
}

_ltdata = _edata - _stdata;
_ltbss = SIZEOF(.tbss);
}
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